ifeq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_PPC_PMAC) += powermac/
+else
+ifeq ($(CONFIG_PPC64),y)
+obj-$(CONFIG_PPC_PMAC) += powermac/
+endif
endif
obj-$(CONFIG_4xx) += 4xx/
obj-$(CONFIG_85xx) += 85xx/
obj-$(CONFIG_IBMVIO) += vio.o
obj-$(CONFIG_XICS) += xics.o
-ifneq ($(CONFIG_PPC_MERGE),y)
-obj-$(CONFIG_PPC_PMAC) += pmac_setup.o pmac_feature.o pmac_pci.o \
- pmac_time.o pmac_nvram.o pmac_low_i2c.o \
- udbg_scc.o
-endif
+obj-$(CONFIG_PPC_PMAC) += udbg_scc.o
obj-$(CONFIG_PPC_MAPLE) += maple_setup.o maple_pci.o maple_time.o \
udbg_16550.o
obj-$(CONFIG_U3_DART) += u3_iommu.o
ifdef CONFIG_SMP
-ifneq ($(CONFIG_PPC_MERGE),y)
-obj-$(CONFIG_PPC_PMAC) += pmac_smp.o smp-tbsync.o
-endif
+obj-$(CONFIG_PPC_PMAC) += smp-tbsync.o
obj-$(CONFIG_PPC_MAPLE) += smp-tbsync.o
endif
+++ /dev/null
-#ifndef __PMAC_H__
-#define __PMAC_H__
-
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-/*
- * Declaration for the various functions exported by the
- * pmac_* files. Mostly for use by pmac_setup
- */
-
-extern unsigned long pmac_get_boot_time(void);
-extern void pmac_get_rtc_time(struct rtc_time *tm);
-extern int pmac_set_rtc_time(struct rtc_time *tm);
-extern void pmac_read_rtc_time(void);
-extern void pmac_calibrate_decr(void);
-
-extern void pmac_pcibios_fixup(void);
-extern void pmac_pci_init(void);
-extern void pmac_setup_pci_dma(void);
-extern void pmac_check_ht_link(void);
-
-extern void pmac_setup_smp(void);
-
-extern unsigned long pmac_ide_get_base(int index);
-extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
- unsigned long data_port, unsigned long ctrl_port, int *irq);
-
-extern void pmac_nvram_init(void);
-
-#endif /* __PMAC_H__ */
+++ /dev/null
-/*
- * arch/ppc/platforms/pmac_feature.c
- *
- * Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
- * Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * TODO:
- *
- * - Replace mdelay with some schedule loop if possible
- * - Shorten some obfuscated delays on some routines (like modem
- * power)
- * - Refcount some clocks (see darwin)
- * - Split split split...
- *
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <asm/sections.h>
-#include <asm/errno.h>
-#include <asm/keylargo.h>
-#include <asm/uninorth.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/dbdma.h>
-#include <asm/pci-bridge.h>
-#include <asm/pmac_low_i2c.h>
-
-#undef DEBUG_FEATURE
-
-#ifdef DEBUG_FEATURE
-#define DBG(fmt...) printk(KERN_DEBUG fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/*
- * We use a single global lock to protect accesses. Each driver has
- * to take care of its own locking
- */
-static DEFINE_SPINLOCK(feature_lock);
-
-#define LOCK(flags) spin_lock_irqsave(&feature_lock, flags);
-#define UNLOCK(flags) spin_unlock_irqrestore(&feature_lock, flags);
-
-
-/*
- * Instance of some macio stuffs
- */
-struct macio_chip macio_chips[MAX_MACIO_CHIPS] ;
-
-struct macio_chip* macio_find(struct device_node* child, int type)
-{
- while(child) {
- int i;
-
- for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
- if (child == macio_chips[i].of_node &&
- (!type || macio_chips[i].type == type))
- return &macio_chips[i];
- child = child->parent;
- }
- return NULL;
-}
-EXPORT_SYMBOL_GPL(macio_find);
-
-static const char* macio_names[] =
-{
- "Unknown",
- "Grand Central",
- "OHare",
- "OHareII",
- "Heathrow",
- "Gatwick",
- "Paddington",
- "Keylargo",
- "Pangea",
- "Intrepid",
- "K2"
-};
-
-
-
-/*
- * Uninorth reg. access. Note that Uni-N regs are big endian
- */
-
-#define UN_REG(r) (uninorth_base + ((r) >> 2))
-#define UN_IN(r) (in_be32(UN_REG(r)))
-#define UN_OUT(r,v) (out_be32(UN_REG(r), (v)))
-#define UN_BIS(r,v) (UN_OUT((r), UN_IN(r) | (v)))
-#define UN_BIC(r,v) (UN_OUT((r), UN_IN(r) & ~(v)))
-
-static struct device_node* uninorth_node;
-static u32* uninorth_base;
-static u32 uninorth_rev;
-static void *u3_ht;
-
-extern struct device_node *k2_skiplist[2];
-
-/*
- * For each motherboard family, we have a table of functions pointers
- * that handle the various features.
- */
-
-typedef long (*feature_call)(struct device_node* node, long param, long value);
-
-struct feature_table_entry {
- unsigned int selector;
- feature_call function;
-};
-
-struct pmac_mb_def
-{
- const char* model_string;
- const char* model_name;
- int model_id;
- struct feature_table_entry* features;
- unsigned long board_flags;
-};
-static struct pmac_mb_def pmac_mb;
-
-/*
- * Here are the chip specific feature functions
- */
-
-
-static long g5_read_gpio(struct device_node* node, long param, long value)
-{
- struct macio_chip* macio = &macio_chips[0];
-
- return MACIO_IN8(param);
-}
-
-
-static long g5_write_gpio(struct device_node* node, long param, long value)
-{
- struct macio_chip* macio = &macio_chips[0];
-
- MACIO_OUT8(param, (u8)(value & 0xff));
- return 0;
-}
-
-static long g5_gmac_enable(struct device_node* node, long param, long value)
-{
- struct macio_chip* macio = &macio_chips[0];
- unsigned long flags;
-
- if (node == NULL)
- return -ENODEV;
-
- LOCK(flags);
- if (value) {
- MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
- mb();
- k2_skiplist[0] = NULL;
- } else {
- k2_skiplist[0] = node;
- mb();
- MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
- }
-
- UNLOCK(flags);
- mdelay(1);
-
- return 0;
-}
-
-static long g5_fw_enable(struct device_node* node, long param, long value)
-{
- struct macio_chip* macio = &macio_chips[0];
- unsigned long flags;
-
- if (node == NULL)
- return -ENODEV;
-
- LOCK(flags);
- if (value) {
- MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
- mb();
- k2_skiplist[1] = NULL;
- } else {
- k2_skiplist[1] = node;
- mb();
- MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
- }
-
- UNLOCK(flags);
- mdelay(1);
-
- return 0;
-}
-
-static long g5_mpic_enable(struct device_node* node, long param, long value)
-{
- unsigned long flags;
-
- if (node->parent == NULL || strcmp(node->parent->name, "u3"))
- return 0;
-
- LOCK(flags);
- UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
- UNLOCK(flags);
-
- return 0;
-}
-
-static long g5_eth_phy_reset(struct device_node* node, long param, long value)
-{
- struct macio_chip* macio = &macio_chips[0];
- struct device_node *phy;
- int need_reset;
-
- /*
- * We must not reset the combo PHYs, only the BCM5221 found in
- * the iMac G5.
- */
- phy = of_get_next_child(node, NULL);
- if (!phy)
- return -ENODEV;
- need_reset = device_is_compatible(phy, "B5221");
- of_node_put(phy);
- if (!need_reset)
- return 0;
-
- /* PHY reset is GPIO 29, not in device-tree unfortunately */
- MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
- KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
- /* Thankfully, this is now always called at a time when we can
- * schedule by sungem.
- */
- msleep(10);
- MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
-
- return 0;
-}
-
-static long g5_i2s_enable(struct device_node *node, long param, long value)
-{
- /* Very crude implementation for now */
- struct macio_chip* macio = &macio_chips[0];
- unsigned long flags;
-
- if (value == 0)
- return 0; /* don't disable yet */
-
- LOCK(flags);
- MACIO_BIS(KEYLARGO_FCR3, KL3_CLK45_ENABLE | KL3_CLK49_ENABLE |
- KL3_I2S0_CLK18_ENABLE);
- udelay(10);
- MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_I2S0_CELL_ENABLE |
- K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE);
- udelay(10);
- MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_I2S0_RESET);
- UNLOCK(flags);
- udelay(10);
-
- return 0;
-}
-
-
-#ifdef CONFIG_SMP
-static long g5_reset_cpu(struct device_node* node, long param, long value)
-{
- unsigned int reset_io = 0;
- unsigned long flags;
- struct macio_chip* macio;
- struct device_node* np;
-
- macio = &macio_chips[0];
- if (macio->type != macio_keylargo2)
- return -ENODEV;
-
- np = find_path_device("/cpus");
- if (np == NULL)
- return -ENODEV;
- for (np = np->child; np != NULL; np = np->sibling) {
- u32* num = (u32 *)get_property(np, "reg", NULL);
- u32* rst = (u32 *)get_property(np, "soft-reset", NULL);
- if (num == NULL || rst == NULL)
- continue;
- if (param == *num) {
- reset_io = *rst;
- break;
- }
- }
- if (np == NULL || reset_io == 0)
- return -ENODEV;
-
- LOCK(flags);
- MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
- (void)MACIO_IN8(reset_io);
- udelay(1);
- MACIO_OUT8(reset_io, 0);
- (void)MACIO_IN8(reset_io);
- UNLOCK(flags);
-
- return 0;
-}
-#endif /* CONFIG_SMP */
-
-/*
- * This can be called from pmac_smp so isn't static
- *
- * This takes the second CPU off the bus on dual CPU machines
- * running UP
- */
-void g5_phy_disable_cpu1(void)
-{
- UN_OUT(U3_API_PHY_CONFIG_1, 0);
-}
-
-static long generic_get_mb_info(struct device_node* node, long param, long value)
-{
- switch(param) {
- case PMAC_MB_INFO_MODEL:
- return pmac_mb.model_id;
- case PMAC_MB_INFO_FLAGS:
- return pmac_mb.board_flags;
- case PMAC_MB_INFO_NAME:
- /* hack hack hack... but should work */
- *((const char **)value) = pmac_mb.model_name;
- return 0;
- }
- return -EINVAL;
-}
-
-
-/*
- * Table definitions
- */
-
-/* Used on any machine
- */
-static struct feature_table_entry any_features[] = {
- { PMAC_FTR_GET_MB_INFO, generic_get_mb_info },
- { 0, NULL }
-};
-
-/* G5 features
- */
-static struct feature_table_entry g5_features[] = {
- { PMAC_FTR_GMAC_ENABLE, g5_gmac_enable },
- { PMAC_FTR_1394_ENABLE, g5_fw_enable },
- { PMAC_FTR_ENABLE_MPIC, g5_mpic_enable },
- { PMAC_FTR_READ_GPIO, g5_read_gpio },
- { PMAC_FTR_WRITE_GPIO, g5_write_gpio },
- { PMAC_FTR_GMAC_PHY_RESET, g5_eth_phy_reset },
- { PMAC_FTR_SOUND_CHIP_ENABLE, g5_i2s_enable },
-#ifdef CONFIG_SMP
- { PMAC_FTR_RESET_CPU, g5_reset_cpu },
-#endif /* CONFIG_SMP */
- { 0, NULL }
-};
-
-static struct pmac_mb_def pmac_mb_defs[] = {
- { "PowerMac7,2", "PowerMac G5",
- PMAC_TYPE_POWERMAC_G5, g5_features,
- 0,
- },
- { "PowerMac7,3", "PowerMac G5",
- PMAC_TYPE_POWERMAC_G5, g5_features,
- 0,
- },
- { "PowerMac8,1", "iMac G5",
- PMAC_TYPE_IMAC_G5, g5_features,
- 0,
- },
- { "PowerMac9,1", "PowerMac G5",
- PMAC_TYPE_POWERMAC_G5_U3L, g5_features,
- 0,
- },
- { "RackMac3,1", "XServe G5",
- PMAC_TYPE_XSERVE_G5, g5_features,
- 0,
- },
-};
-
-/*
- * The toplevel feature_call callback
- */
-long pmac_do_feature_call(unsigned int selector, ...)
-{
- struct device_node* node;
- long param, value;
- int i;
- feature_call func = NULL;
- va_list args;
-
- if (pmac_mb.features)
- for (i=0; pmac_mb.features[i].function; i++)
- if (pmac_mb.features[i].selector == selector) {
- func = pmac_mb.features[i].function;
- break;
- }
- if (!func)
- for (i=0; any_features[i].function; i++)
- if (any_features[i].selector == selector) {
- func = any_features[i].function;
- break;
- }
- if (!func)
- return -ENODEV;
-
- va_start(args, selector);
- node = (struct device_node*)va_arg(args, void*);
- param = va_arg(args, long);
- value = va_arg(args, long);
- va_end(args);
-
- return func(node, param, value);
-}
-
-static int __init probe_motherboard(void)
-{
- int i;
- struct macio_chip* macio = &macio_chips[0];
- const char* model = NULL;
- struct device_node *dt;
-
- /* Lookup known motherboard type in device-tree. First try an
- * exact match on the "model" property, then try a "compatible"
- * match is none is found.
- */
- dt = find_devices("device-tree");
- if (dt != NULL)
- model = (const char *) get_property(dt, "model", NULL);
- for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
- if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
- pmac_mb = pmac_mb_defs[i];
- goto found;
- }
- }
- for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
- if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
- pmac_mb = pmac_mb_defs[i];
- goto found;
- }
- }
-
- /* Fallback to selection depending on mac-io chip type */
- switch(macio->type) {
- case macio_keylargo2:
- pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
- pmac_mb.model_name = "Unknown K2-based";
- pmac_mb.features = g5_features;
-
- default:
- return -ENODEV;
- }
-found:
- /* Check for "mobile" machine */
- if (model && (strncmp(model, "PowerBook", 9) == 0
- || strncmp(model, "iBook", 5) == 0))
- pmac_mb.board_flags |= PMAC_MB_MOBILE;
-
-
- printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
- return 0;
-}
-
-/* Initialize the Core99 UniNorth host bridge and memory controller
- */
-static void __init probe_uninorth(void)
-{
- uninorth_node = of_find_node_by_name(NULL, "u3");
- if (uninorth_node && uninorth_node->n_addrs > 0) {
- /* Small hack until I figure out if parsing in prom.c is correct. I should
- * get rid of those pre-parsed junk anyway
- */
- unsigned long address = uninorth_node->addrs[0].address;
- uninorth_base = ioremap(address, 0x40000);
- uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
- u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
- } else
- uninorth_node = NULL;
-
- if (!uninorth_node)
- return;
-
- printk(KERN_INFO "Found U3 memory controller & host bridge, revision: %d\n",
- uninorth_rev);
- printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
-
-}
-
-static void __init probe_one_macio(const char* name, const char* compat, int type)
-{
- struct device_node* node;
- int i;
- volatile u32* base;
- u32* revp;
-
- node = find_devices(name);
- if (!node || !node->n_addrs)
- return;
- if (compat)
- do {
- if (device_is_compatible(node, compat))
- break;
- node = node->next;
- } while (node);
- if (!node)
- return;
- for(i=0; i<MAX_MACIO_CHIPS; i++) {
- if (!macio_chips[i].of_node)
- break;
- if (macio_chips[i].of_node == node)
- return;
- }
- if (i >= MAX_MACIO_CHIPS) {
- printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
- printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
- return;
- }
- base = (volatile u32*)ioremap(node->addrs[0].address, node->addrs[0].size);
- if (!base) {
- printk(KERN_ERR "pmac_feature: Can't map mac-io chip !\n");
- return;
- }
- if (type == macio_keylargo) {
- u32* did = (u32 *)get_property(node, "device-id", NULL);
- if (*did == 0x00000025)
- type = macio_pangea;
- if (*did == 0x0000003e)
- type = macio_intrepid;
- }
- macio_chips[i].of_node = node;
- macio_chips[i].type = type;
- macio_chips[i].base = base;
- macio_chips[i].flags = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
- macio_chips[i].name = macio_names[type];
- revp = (u32 *)get_property(node, "revision-id", NULL);
- if (revp)
- macio_chips[i].rev = *revp;
- printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
- macio_names[type], macio_chips[i].rev, macio_chips[i].base);
-}
-
-static int __init
-probe_macios(void)
-{
- probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
-
- macio_chips[0].lbus.index = 0;
- macio_chips[1].lbus.index = 1;
-
- return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
-}
-
-static void __init
-set_initial_features(void)
-{
- struct device_node *np;
-
- if (macio_chips[0].type == macio_keylargo2) {
-#ifndef CONFIG_SMP
- /* On SMP machines running UP, we have the second CPU eating
- * bus cycles. We need to take it off the bus. This is done
- * from pmac_smp for SMP kernels running on one CPU
- */
- np = of_find_node_by_type(NULL, "cpu");
- if (np != NULL)
- np = of_find_node_by_type(np, "cpu");
- if (np != NULL) {
- g5_phy_disable_cpu1();
- of_node_put(np);
- }
-#endif /* CONFIG_SMP */
- /* Enable GMAC for now for PCI probing. It will be disabled
- * later on after PCI probe
- */
- np = of_find_node_by_name(NULL, "ethernet");
- while(np) {
- if (device_is_compatible(np, "K2-GMAC"))
- g5_gmac_enable(np, 0, 1);
- np = of_find_node_by_name(np, "ethernet");
- }
-
- /* Enable FW before PCI probe. Will be disabled later on
- * Note: We should have a batter way to check that we are
- * dealing with uninorth internal cell and not a PCI cell
- * on the external PCI. The code below works though.
- */
- np = of_find_node_by_name(NULL, "firewire");
- while(np) {
- if (device_is_compatible(np, "pci106b,5811")) {
- macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
- g5_fw_enable(np, 0, 1);
- }
- np = of_find_node_by_name(np, "firewire");
- }
- }
-}
-
-void __init
-pmac_feature_init(void)
-{
- /* Detect the UniNorth memory controller */
- probe_uninorth();
-
- /* Probe mac-io controllers */
- if (probe_macios()) {
- printk(KERN_WARNING "No mac-io chip found\n");
- return;
- }
-
- /* Setup low-level i2c stuffs */
- pmac_init_low_i2c();
-
- /* Probe machine type */
- if (probe_motherboard())
- printk(KERN_WARNING "Unknown PowerMac !\n");
-
- /* Set some initial features (turn off some chips that will
- * be later turned on)
- */
- set_initial_features();
-}
-
-int __init pmac_feature_late_init(void)
-{
-#if 0
- struct device_node* np;
-
- /* Request some resources late */
- if (uninorth_node)
- request_OF_resource(uninorth_node, 0, NULL);
- np = find_devices("hammerhead");
- if (np)
- request_OF_resource(np, 0, NULL);
- np = find_devices("interrupt-controller");
- if (np)
- request_OF_resource(np, 0, NULL);
-#endif
- return 0;
-}
-
-device_initcall(pmac_feature_late_init);
-
-#if 0
-static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
-{
- int freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
- int bits[8] = { 8,16,0,32,2,4,0,0 };
- int freq = (frq >> 8) & 0xf;
-
- if (freqs[freq] == 0)
- printk("%s: Unknown HT link frequency %x\n", name, freq);
- else
- printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
- name, freqs[freq],
- bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
-}
-#endif
-
-void __init pmac_check_ht_link(void)
-{
-#if 0 /* Disabled for now */
- u32 ufreq, freq, ucfg, cfg;
- struct device_node *pcix_node;
- struct pci_dn *pdn;
- u8 px_bus, px_devfn;
- struct pci_controller *px_hose;
-
- (void)in_be32(u3_ht + U3_HT_LINK_COMMAND);
- ucfg = cfg = in_be32(u3_ht + U3_HT_LINK_CONFIG);
- ufreq = freq = in_be32(u3_ht + U3_HT_LINK_FREQ);
- dump_HT_speeds("U3 HyperTransport", cfg, freq);
-
- pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
- if (pcix_node == NULL) {
- printk("No PCI-X bridge found\n");
- return;
- }
- pdn = pcix_node->data;
- px_hose = pdn->phb;
- px_bus = pdn->busno;
- px_devfn = pdn->devfn;
-
- early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
- early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
- dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
- early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
- early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
- dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
-#endif
-}
-
-/*
- * Early video resume hook
- */
-
-static void (*pmac_early_vresume_proc)(void *data);
-static void *pmac_early_vresume_data;
-
-void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
-{
- if (_machine != _MACH_Pmac)
- return;
- preempt_disable();
- pmac_early_vresume_proc = proc;
- pmac_early_vresume_data = data;
- preempt_enable();
-}
-EXPORT_SYMBOL(pmac_set_early_video_resume);
-
-
-/*
- * AGP related suspend/resume code
- */
-
-static struct pci_dev *pmac_agp_bridge;
-static int (*pmac_agp_suspend)(struct pci_dev *bridge);
-static int (*pmac_agp_resume)(struct pci_dev *bridge);
-
-void pmac_register_agp_pm(struct pci_dev *bridge,
- int (*suspend)(struct pci_dev *bridge),
- int (*resume)(struct pci_dev *bridge))
-{
- if (suspend || resume) {
- pmac_agp_bridge = bridge;
- pmac_agp_suspend = suspend;
- pmac_agp_resume = resume;
- return;
- }
- if (bridge != pmac_agp_bridge)
- return;
- pmac_agp_suspend = pmac_agp_resume = NULL;
- return;
-}
-EXPORT_SYMBOL(pmac_register_agp_pm);
-
-void pmac_suspend_agp_for_card(struct pci_dev *dev)
-{
- if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
- return;
- if (pmac_agp_bridge->bus != dev->bus)
- return;
- pmac_agp_suspend(pmac_agp_bridge);
-}
-EXPORT_SYMBOL(pmac_suspend_agp_for_card);
-
-void pmac_resume_agp_for_card(struct pci_dev *dev)
-{
- if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
- return;
- if (pmac_agp_bridge->bus != dev->bus)
- return;
- pmac_agp_resume(pmac_agp_bridge);
-}
-EXPORT_SYMBOL(pmac_resume_agp_for_card);
+++ /dev/null
-/*
- * arch/ppc/platforms/pmac_low_i2c.c
- *
- * Copyright (C) 2003 Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This file contains some low-level i2c access routines that
- * need to be used by various bits of the PowerMac platform code
- * at times where the real asynchronous & interrupt driven driver
- * cannot be used. The API borrows some semantics from the darwin
- * driver in order to ease the implementation of the platform
- * properties parser
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <asm/keylargo.h>
-#include <asm/uninorth.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/pmac_low_i2c.h>
-
-#define MAX_LOW_I2C_HOST 4
-
-#ifdef DEBUG
-#define DBG(x...) do {\
- printk(KERN_DEBUG "KW:" x); \
- } while(0)
-#else
-#define DBG(x...)
-#endif
-
-struct low_i2c_host;
-
-typedef int (*low_i2c_func_t)(struct low_i2c_host *host, u8 addr, u8 sub, u8 *data, int len);
-
-struct low_i2c_host
-{
- struct device_node *np; /* OF device node */
- struct semaphore mutex; /* Access mutex for use by i2c-keywest */
- low_i2c_func_t func; /* Access function */
- unsigned int is_open : 1; /* Poor man's access control */
- int mode; /* Current mode */
- int channel; /* Current channel */
- int num_channels; /* Number of channels */
- void __iomem *base; /* For keywest-i2c, base address */
- int bsteps; /* And register stepping */
- int speed; /* And speed */
-};
-
-static struct low_i2c_host low_i2c_hosts[MAX_LOW_I2C_HOST];
-
-/* No locking is necessary on allocation, we are running way before
- * anything can race with us
- */
-static struct low_i2c_host *find_low_i2c_host(struct device_node *np)
-{
- int i;
-
- for (i = 0; i < MAX_LOW_I2C_HOST; i++)
- if (low_i2c_hosts[i].np == np)
- return &low_i2c_hosts[i];
- return NULL;
-}
-
-/*
- *
- * i2c-keywest implementation (UniNorth, U2, U3, Keylargo's)
- *
- */
-
-/*
- * Keywest i2c definitions borrowed from drivers/i2c/i2c-keywest.h,
- * should be moved somewhere in include/asm-ppc/
- */
-/* Register indices */
-typedef enum {
- reg_mode = 0,
- reg_control,
- reg_status,
- reg_isr,
- reg_ier,
- reg_addr,
- reg_subaddr,
- reg_data
-} reg_t;
-
-
-/* Mode register */
-#define KW_I2C_MODE_100KHZ 0x00
-#define KW_I2C_MODE_50KHZ 0x01
-#define KW_I2C_MODE_25KHZ 0x02
-#define KW_I2C_MODE_DUMB 0x00
-#define KW_I2C_MODE_STANDARD 0x04
-#define KW_I2C_MODE_STANDARDSUB 0x08
-#define KW_I2C_MODE_COMBINED 0x0C
-#define KW_I2C_MODE_MODE_MASK 0x0C
-#define KW_I2C_MODE_CHAN_MASK 0xF0
-
-/* Control register */
-#define KW_I2C_CTL_AAK 0x01
-#define KW_I2C_CTL_XADDR 0x02
-#define KW_I2C_CTL_STOP 0x04
-#define KW_I2C_CTL_START 0x08
-
-/* Status register */
-#define KW_I2C_STAT_BUSY 0x01
-#define KW_I2C_STAT_LAST_AAK 0x02
-#define KW_I2C_STAT_LAST_RW 0x04
-#define KW_I2C_STAT_SDA 0x08
-#define KW_I2C_STAT_SCL 0x10
-
-/* IER & ISR registers */
-#define KW_I2C_IRQ_DATA 0x01
-#define KW_I2C_IRQ_ADDR 0x02
-#define KW_I2C_IRQ_STOP 0x04
-#define KW_I2C_IRQ_START 0x08
-#define KW_I2C_IRQ_MASK 0x0F
-
-/* State machine states */
-enum {
- state_idle,
- state_addr,
- state_read,
- state_write,
- state_stop,
- state_dead
-};
-
-#define WRONG_STATE(name) do {\
- printk(KERN_DEBUG "KW: wrong state. Got %s, state: %s (isr: %02x)\n", \
- name, __kw_state_names[state], isr); \
- } while(0)
-
-static const char *__kw_state_names[] = {
- "state_idle",
- "state_addr",
- "state_read",
- "state_write",
- "state_stop",
- "state_dead"
-};
-
-static inline u8 __kw_read_reg(struct low_i2c_host *host, reg_t reg)
-{
- return readb(host->base + (((unsigned int)reg) << host->bsteps));
-}
-
-static inline void __kw_write_reg(struct low_i2c_host *host, reg_t reg, u8 val)
-{
- writeb(val, host->base + (((unsigned)reg) << host->bsteps));
- (void)__kw_read_reg(host, reg_subaddr);
-}
-
-#define kw_write_reg(reg, val) __kw_write_reg(host, reg, val)
-#define kw_read_reg(reg) __kw_read_reg(host, reg)
-
-
-/* Don't schedule, the g5 fan controller is too
- * timing sensitive
- */
-static u8 kw_wait_interrupt(struct low_i2c_host* host)
-{
- int i, j;
- u8 isr;
-
- for (i = 0; i < 100000; i++) {
- isr = kw_read_reg(reg_isr) & KW_I2C_IRQ_MASK;
- if (isr != 0)
- return isr;
-
- /* This code is used with the timebase frozen, we cannot rely
- * on udelay ! For now, just use a bogus loop
- */
- for (j = 1; j < 10000; j++)
- mb();
- }
- return isr;
-}
-
-static int kw_handle_interrupt(struct low_i2c_host *host, int state, int rw, int *rc, u8 **data, int *len, u8 isr)
-{
- u8 ack;
-
- DBG("kw_handle_interrupt(%s, isr: %x)\n", __kw_state_names[state], isr);
-
- if (isr == 0) {
- if (state != state_stop) {
- DBG("KW: Timeout !\n");
- *rc = -EIO;
- goto stop;
- }
- if (state == state_stop) {
- ack = kw_read_reg(reg_status);
- if (!(ack & KW_I2C_STAT_BUSY)) {
- state = state_idle;
- kw_write_reg(reg_ier, 0x00);
- }
- }
- return state;
- }
-
- if (isr & KW_I2C_IRQ_ADDR) {
- ack = kw_read_reg(reg_status);
- if (state != state_addr) {
- kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
- WRONG_STATE("KW_I2C_IRQ_ADDR");
- *rc = -EIO;
- goto stop;
- }
- if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {
- *rc = -ENODEV;
- DBG("KW: NAK on address\n");
- return state_stop;
- } else {
- if (rw) {
- state = state_read;
- if (*len > 1)
- kw_write_reg(reg_control, KW_I2C_CTL_AAK);
- } else {
- state = state_write;
- kw_write_reg(reg_data, **data);
- (*data)++; (*len)--;
- }
- }
- kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
- }
-
- if (isr & KW_I2C_IRQ_DATA) {
- if (state == state_read) {
- **data = kw_read_reg(reg_data);
- (*data)++; (*len)--;
- kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
- if ((*len) == 0)
- state = state_stop;
- else if ((*len) == 1)
- kw_write_reg(reg_control, 0);
- } else if (state == state_write) {
- ack = kw_read_reg(reg_status);
- if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {
- DBG("KW: nack on data write\n");
- *rc = -EIO;
- goto stop;
- } else if (*len) {
- kw_write_reg(reg_data, **data);
- (*data)++; (*len)--;
- } else {
- kw_write_reg(reg_control, KW_I2C_CTL_STOP);
- state = state_stop;
- *rc = 0;
- }
- kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
- } else {
- kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
- WRONG_STATE("KW_I2C_IRQ_DATA");
- if (state != state_stop) {
- *rc = -EIO;
- goto stop;
- }
- }
- }
-
- if (isr & KW_I2C_IRQ_STOP) {
- kw_write_reg(reg_isr, KW_I2C_IRQ_STOP);
- if (state != state_stop) {
- WRONG_STATE("KW_I2C_IRQ_STOP");
- *rc = -EIO;
- }
- return state_idle;
- }
-
- if (isr & KW_I2C_IRQ_START)
- kw_write_reg(reg_isr, KW_I2C_IRQ_START);
-
- return state;
-
- stop:
- kw_write_reg(reg_control, KW_I2C_CTL_STOP);
- return state_stop;
-}
-
-static int keywest_low_i2c_func(struct low_i2c_host *host, u8 addr, u8 subaddr, u8 *data, int len)
-{
- u8 mode_reg = host->speed;
- int state = state_addr;
- int rc = 0;
-
- /* Setup mode & subaddress if any */
- switch(host->mode) {
- case pmac_low_i2c_mode_dumb:
- printk(KERN_ERR "low_i2c: Dumb mode not supported !\n");
- return -EINVAL;
- case pmac_low_i2c_mode_std:
- mode_reg |= KW_I2C_MODE_STANDARD;
- break;
- case pmac_low_i2c_mode_stdsub:
- mode_reg |= KW_I2C_MODE_STANDARDSUB;
- break;
- case pmac_low_i2c_mode_combined:
- mode_reg |= KW_I2C_MODE_COMBINED;
- break;
- }
-
- /* Setup channel & clear pending irqs */
- kw_write_reg(reg_isr, kw_read_reg(reg_isr));
- kw_write_reg(reg_mode, mode_reg | (host->channel << 4));
- kw_write_reg(reg_status, 0);
-
- /* Set up address and r/w bit */
- kw_write_reg(reg_addr, addr);
-
- /* Set up the sub address */
- if ((mode_reg & KW_I2C_MODE_MODE_MASK) == KW_I2C_MODE_STANDARDSUB
- || (mode_reg & KW_I2C_MODE_MODE_MASK) == KW_I2C_MODE_COMBINED)
- kw_write_reg(reg_subaddr, subaddr);
-
- /* Start sending address & disable interrupt*/
- kw_write_reg(reg_ier, 0 /*KW_I2C_IRQ_MASK*/);
- kw_write_reg(reg_control, KW_I2C_CTL_XADDR);
-
- /* State machine, to turn into an interrupt handler */
- while(state != state_idle) {
- u8 isr = kw_wait_interrupt(host);
- state = kw_handle_interrupt(host, state, addr & 1, &rc, &data, &len, isr);
- }
-
- return rc;
-}
-
-static void keywest_low_i2c_add(struct device_node *np)
-{
- struct low_i2c_host *host = find_low_i2c_host(NULL);
- u32 *psteps, *prate, steps, aoffset = 0;
- struct device_node *parent;
-
- if (host == NULL) {
- printk(KERN_ERR "low_i2c: Can't allocate host for %s\n",
- np->full_name);
- return;
- }
- memset(host, 0, sizeof(*host));
-
- init_MUTEX(&host->mutex);
- host->np = of_node_get(np);
- psteps = (u32 *)get_property(np, "AAPL,address-step", NULL);
- steps = psteps ? (*psteps) : 0x10;
- for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++)
- steps >>= 1;
- parent = of_get_parent(np);
- host->num_channels = 1;
- if (parent && parent->name[0] == 'u') {
- host->num_channels = 2;
- aoffset = 3;
- }
- /* Select interface rate */
- host->speed = KW_I2C_MODE_100KHZ;
- prate = (u32 *)get_property(np, "AAPL,i2c-rate", NULL);
- if (prate) switch(*prate) {
- case 100:
- host->speed = KW_I2C_MODE_100KHZ;
- break;
- case 50:
- host->speed = KW_I2C_MODE_50KHZ;
- break;
- case 25:
- host->speed = KW_I2C_MODE_25KHZ;
- break;
- }
-
- host->mode = pmac_low_i2c_mode_std;
- host->base = ioremap(np->addrs[0].address + aoffset,
- np->addrs[0].size);
- host->func = keywest_low_i2c_func;
-}
-
-/*
- *
- * PMU implementation
- *
- */
-
-
-#ifdef CONFIG_ADB_PMU
-
-static int pmu_low_i2c_func(struct low_i2c_host *host, u8 addr, u8 sub, u8 *data, int len)
-{
- // TODO
- return -ENODEV;
-}
-
-static void pmu_low_i2c_add(struct device_node *np)
-{
- struct low_i2c_host *host = find_low_i2c_host(NULL);
-
- if (host == NULL) {
- printk(KERN_ERR "low_i2c: Can't allocate host for %s\n",
- np->full_name);
- return;
- }
- memset(host, 0, sizeof(*host));
-
- init_MUTEX(&host->mutex);
- host->np = of_node_get(np);
- host->num_channels = 3;
- host->mode = pmac_low_i2c_mode_std;
- host->func = pmu_low_i2c_func;
-}
-
-#endif /* CONFIG_ADB_PMU */
-
-void __init pmac_init_low_i2c(void)
-{
- struct device_node *np;
-
- /* Probe keywest-i2c busses */
- np = of_find_compatible_node(NULL, "i2c", "keywest-i2c");
- while(np) {
- keywest_low_i2c_add(np);
- np = of_find_compatible_node(np, "i2c", "keywest-i2c");
- }
-
-#ifdef CONFIG_ADB_PMU
- /* Probe PMU busses */
- np = of_find_node_by_name(NULL, "via-pmu");
- if (np)
- pmu_low_i2c_add(np);
-#endif /* CONFIG_ADB_PMU */
-
- /* TODO: Add CUDA support as well */
-}
-
-int pmac_low_i2c_lock(struct device_node *np)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
- down(&host->mutex);
- return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_lock);
-
-int pmac_low_i2c_unlock(struct device_node *np)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
- up(&host->mutex);
- return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_unlock);
-
-
-int pmac_low_i2c_open(struct device_node *np, int channel)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
-
- if (channel >= host->num_channels)
- return -EINVAL;
-
- down(&host->mutex);
- host->is_open = 1;
- host->channel = channel;
-
- return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_open);
-
-int pmac_low_i2c_close(struct device_node *np)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
-
- host->is_open = 0;
- up(&host->mutex);
-
- return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_close);
-
-int pmac_low_i2c_setmode(struct device_node *np, int mode)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
- WARN_ON(!host->is_open);
- host->mode = mode;
-
- return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_setmode);
-
-int pmac_low_i2c_xfer(struct device_node *np, u8 addrdir, u8 subaddr, u8 *data, int len)
-{
- struct low_i2c_host *host = find_low_i2c_host(np);
-
- if (!host)
- return -ENODEV;
- WARN_ON(!host->is_open);
-
- return host->func(host, addrdir, subaddr, data, len);
-}
-EXPORT_SYMBOL(pmac_low_i2c_xfer);
-
+++ /dev/null
-/*
- * arch/ppc/platforms/pmac_nvram.c
- *
- * Copyright (C) 2002 Benjamin Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Todo: - add support for the OF persistent properties
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/bootmem.h>
-#include <linux/completion.h>
-#include <linux/spinlock.h>
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/nvram.h>
-
-#define DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-#define NVRAM_SIZE 0x2000 /* 8kB of non-volatile RAM */
-
-#define CORE99_SIGNATURE 0x5a
-#define CORE99_ADLER_START 0x14
-
-/* On Core99, nvram is either a sharp, a micron or an AMD flash */
-#define SM_FLASH_STATUS_DONE 0x80
-#define SM_FLASH_STATUS_ERR 0x38
-
-#define SM_FLASH_CMD_ERASE_CONFIRM 0xd0
-#define SM_FLASH_CMD_ERASE_SETUP 0x20
-#define SM_FLASH_CMD_RESET 0xff
-#define SM_FLASH_CMD_WRITE_SETUP 0x40
-#define SM_FLASH_CMD_CLEAR_STATUS 0x50
-#define SM_FLASH_CMD_READ_STATUS 0x70
-
-/* CHRP NVRAM header */
-struct chrp_header {
- u8 signature;
- u8 cksum;
- u16 len;
- char name[12];
- u8 data[0];
-};
-
-struct core99_header {
- struct chrp_header hdr;
- u32 adler;
- u32 generation;
- u32 reserved[2];
-};
-
-/*
- * Read and write the non-volatile RAM on PowerMacs and CHRP machines.
- */
-static volatile unsigned char *nvram_data;
-static int core99_bank = 0;
-// XXX Turn that into a sem
-static DEFINE_SPINLOCK(nv_lock);
-
-extern int system_running;
-
-static int (*core99_write_bank)(int bank, u8* datas);
-static int (*core99_erase_bank)(int bank);
-
-static char *nvram_image;
-
-
-static ssize_t core99_nvram_read(char *buf, size_t count, loff_t *index)
-{
- int i;
-
- if (nvram_image == NULL)
- return -ENODEV;
- if (*index > NVRAM_SIZE)
- return 0;
-
- i = *index;
- if (i + count > NVRAM_SIZE)
- count = NVRAM_SIZE - i;
-
- memcpy(buf, &nvram_image[i], count);
- *index = i + count;
- return count;
-}
-
-static ssize_t core99_nvram_write(char *buf, size_t count, loff_t *index)
-{
- int i;
-
- if (nvram_image == NULL)
- return -ENODEV;
- if (*index > NVRAM_SIZE)
- return 0;
-
- i = *index;
- if (i + count > NVRAM_SIZE)
- count = NVRAM_SIZE - i;
-
- memcpy(&nvram_image[i], buf, count);
- *index = i + count;
- return count;
-}
-
-static ssize_t core99_nvram_size(void)
-{
- if (nvram_image == NULL)
- return -ENODEV;
- return NVRAM_SIZE;
-}
-
-static u8 chrp_checksum(struct chrp_header* hdr)
-{
- u8 *ptr;
- u16 sum = hdr->signature;
- for (ptr = (u8 *)&hdr->len; ptr < hdr->data; ptr++)
- sum += *ptr;
- while (sum > 0xFF)
- sum = (sum & 0xFF) + (sum>>8);
- return sum;
-}
-
-static u32 core99_calc_adler(u8 *buffer)
-{
- int cnt;
- u32 low, high;
-
- buffer += CORE99_ADLER_START;
- low = 1;
- high = 0;
- for (cnt=0; cnt<(NVRAM_SIZE-CORE99_ADLER_START); cnt++) {
- if ((cnt % 5000) == 0) {
- high %= 65521UL;
- high %= 65521UL;
- }
- low += buffer[cnt];
- high += low;
- }
- low %= 65521UL;
- high %= 65521UL;
-
- return (high << 16) | low;
-}
-
-static u32 core99_check(u8* datas)
-{
- struct core99_header* hdr99 = (struct core99_header*)datas;
-
- if (hdr99->hdr.signature != CORE99_SIGNATURE) {
- DBG("Invalid signature\n");
- return 0;
- }
- if (hdr99->hdr.cksum != chrp_checksum(&hdr99->hdr)) {
- DBG("Invalid checksum\n");
- return 0;
- }
- if (hdr99->adler != core99_calc_adler(datas)) {
- DBG("Invalid adler\n");
- return 0;
- }
- return hdr99->generation;
-}
-
-static int sm_erase_bank(int bank)
-{
- int stat, i;
- unsigned long timeout;
-
- u8* base = (u8 *)nvram_data + core99_bank*NVRAM_SIZE;
-
- DBG("nvram: Sharp/Micron Erasing bank %d...\n", bank);
-
- out_8(base, SM_FLASH_CMD_ERASE_SETUP);
- out_8(base, SM_FLASH_CMD_ERASE_CONFIRM);
- timeout = 0;
- do {
- if (++timeout > 1000000) {
- printk(KERN_ERR "nvram: Sharp/Miron flash erase timeout !\n");
- break;
- }
- out_8(base, SM_FLASH_CMD_READ_STATUS);
- stat = in_8(base);
- } while (!(stat & SM_FLASH_STATUS_DONE));
-
- out_8(base, SM_FLASH_CMD_CLEAR_STATUS);
- out_8(base, SM_FLASH_CMD_RESET);
-
- for (i=0; i<NVRAM_SIZE; i++)
- if (base[i] != 0xff) {
- printk(KERN_ERR "nvram: Sharp/Micron flash erase failed !\n");
- return -ENXIO;
- }
- return 0;
-}
-
-static int sm_write_bank(int bank, u8* datas)
-{
- int i, stat = 0;
- unsigned long timeout;
-
- u8* base = (u8 *)nvram_data + core99_bank*NVRAM_SIZE;
-
- DBG("nvram: Sharp/Micron Writing bank %d...\n", bank);
-
- for (i=0; i<NVRAM_SIZE; i++) {
- out_8(base+i, SM_FLASH_CMD_WRITE_SETUP);
- udelay(1);
- out_8(base+i, datas[i]);
- timeout = 0;
- do {
- if (++timeout > 1000000) {
- printk(KERN_ERR "nvram: Sharp/Micron flash write timeout !\n");
- break;
- }
- out_8(base, SM_FLASH_CMD_READ_STATUS);
- stat = in_8(base);
- } while (!(stat & SM_FLASH_STATUS_DONE));
- if (!(stat & SM_FLASH_STATUS_DONE))
- break;
- }
- out_8(base, SM_FLASH_CMD_CLEAR_STATUS);
- out_8(base, SM_FLASH_CMD_RESET);
- for (i=0; i<NVRAM_SIZE; i++)
- if (base[i] != datas[i]) {
- printk(KERN_ERR "nvram: Sharp/Micron flash write failed !\n");
- return -ENXIO;
- }
- return 0;
-}
-
-static int amd_erase_bank(int bank)
-{
- int i, stat = 0;
- unsigned long timeout;
-
- u8* base = (u8 *)nvram_data + core99_bank*NVRAM_SIZE;
-
- DBG("nvram: AMD Erasing bank %d...\n", bank);
-
- /* Unlock 1 */
- out_8(base+0x555, 0xaa);
- udelay(1);
- /* Unlock 2 */
- out_8(base+0x2aa, 0x55);
- udelay(1);
-
- /* Sector-Erase */
- out_8(base+0x555, 0x80);
- udelay(1);
- out_8(base+0x555, 0xaa);
- udelay(1);
- out_8(base+0x2aa, 0x55);
- udelay(1);
- out_8(base, 0x30);
- udelay(1);
-
- timeout = 0;
- do {
- if (++timeout > 1000000) {
- printk(KERN_ERR "nvram: AMD flash erase timeout !\n");
- break;
- }
- stat = in_8(base) ^ in_8(base);
- } while (stat != 0);
-
- /* Reset */
- out_8(base, 0xf0);
- udelay(1);
-
- for (i=0; i<NVRAM_SIZE; i++)
- if (base[i] != 0xff) {
- printk(KERN_ERR "nvram: AMD flash erase failed !\n");
- return -ENXIO;
- }
- return 0;
-}
-
-static int amd_write_bank(int bank, u8* datas)
-{
- int i, stat = 0;
- unsigned long timeout;
-
- u8* base = (u8 *)nvram_data + core99_bank*NVRAM_SIZE;
-
- DBG("nvram: AMD Writing bank %d...\n", bank);
-
- for (i=0; i<NVRAM_SIZE; i++) {
- /* Unlock 1 */
- out_8(base+0x555, 0xaa);
- udelay(1);
- /* Unlock 2 */
- out_8(base+0x2aa, 0x55);
- udelay(1);
-
- /* Write single word */
- out_8(base+0x555, 0xa0);
- udelay(1);
- out_8(base+i, datas[i]);
-
- timeout = 0;
- do {
- if (++timeout > 1000000) {
- printk(KERN_ERR "nvram: AMD flash write timeout !\n");
- break;
- }
- stat = in_8(base) ^ in_8(base);
- } while (stat != 0);
- if (stat != 0)
- break;
- }
-
- /* Reset */
- out_8(base, 0xf0);
- udelay(1);
-
- for (i=0; i<NVRAM_SIZE; i++)
- if (base[i] != datas[i]) {
- printk(KERN_ERR "nvram: AMD flash write failed !\n");
- return -ENXIO;
- }
- return 0;
-}
-
-
-static void core99_nvram_sync(void)
-{
- struct core99_header* hdr99;
- unsigned long flags;
-
- spin_lock_irqsave(&nv_lock, flags);
- if (!memcmp(nvram_image, (u8*)nvram_data + core99_bank*NVRAM_SIZE,
- NVRAM_SIZE))
- goto bail;
-
- DBG("Updating nvram...\n");
-
- hdr99 = (struct core99_header*)nvram_image;
- hdr99->generation++;
- hdr99->hdr.signature = CORE99_SIGNATURE;
- hdr99->hdr.cksum = chrp_checksum(&hdr99->hdr);
- hdr99->adler = core99_calc_adler(nvram_image);
- core99_bank = core99_bank ? 0 : 1;
- if (core99_erase_bank)
- if (core99_erase_bank(core99_bank)) {
- printk("nvram: Error erasing bank %d\n", core99_bank);
- goto bail;
- }
- if (core99_write_bank)
- if (core99_write_bank(core99_bank, nvram_image))
- printk("nvram: Error writing bank %d\n", core99_bank);
- bail:
- spin_unlock_irqrestore(&nv_lock, flags);
-}
-
-int __init pmac_nvram_init(void)
-{
- struct device_node *dp;
- u32 gen_bank0, gen_bank1;
- int i;
-
- dp = find_devices("nvram");
- if (dp == NULL) {
- printk(KERN_ERR "Can't find NVRAM device\n");
- return -ENODEV;
- }
- if (!device_is_compatible(dp, "nvram,flash")) {
- printk(KERN_ERR "Incompatible type of NVRAM\n");
- return -ENXIO;
- }
-
- nvram_image = alloc_bootmem(NVRAM_SIZE);
- if (nvram_image == NULL) {
- printk(KERN_ERR "nvram: can't allocate ram image\n");
- return -ENOMEM;
- }
- nvram_data = ioremap(dp->addrs[0].address, NVRAM_SIZE*2);
-
- DBG("nvram: Checking bank 0...\n");
-
- gen_bank0 = core99_check((u8 *)nvram_data);
- gen_bank1 = core99_check((u8 *)nvram_data + NVRAM_SIZE);
- core99_bank = (gen_bank0 < gen_bank1) ? 1 : 0;
-
- DBG("nvram: gen0=%d, gen1=%d\n", gen_bank0, gen_bank1);
- DBG("nvram: Active bank is: %d\n", core99_bank);
-
- for (i=0; i<NVRAM_SIZE; i++)
- nvram_image[i] = nvram_data[i + core99_bank*NVRAM_SIZE];
-
- ppc_md.nvram_read = core99_nvram_read;
- ppc_md.nvram_write = core99_nvram_write;
- ppc_md.nvram_size = core99_nvram_size;
- ppc_md.nvram_sync = core99_nvram_sync;
-
- /*
- * Maybe we could be smarter here though making an exclusive list
- * of known flash chips is a bit nasty as older OF didn't provide us
- * with a useful "compatible" entry. A solution would be to really
- * identify the chip using flash id commands and base ourselves on
- * a list of known chips IDs
- */
- if (device_is_compatible(dp, "amd-0137")) {
- core99_erase_bank = amd_erase_bank;
- core99_write_bank = amd_write_bank;
- } else {
- core99_erase_bank = sm_erase_bank;
- core99_write_bank = sm_write_bank;
- }
-
- return 0;
-}
-
-int pmac_get_partition(int partition)
-{
- struct nvram_partition *part;
- const char *name;
- int sig;
-
- switch(partition) {
- case pmac_nvram_OF:
- name = "common";
- sig = NVRAM_SIG_SYS;
- break;
- case pmac_nvram_XPRAM:
- name = "APL,MacOS75";
- sig = NVRAM_SIG_OS;
- break;
- case pmac_nvram_NR:
- default:
- /* Oldworld stuff */
- return -ENODEV;
- }
-
- part = nvram_find_partition(sig, name);
- if (part == NULL)
- return 0;
-
- return part->index;
-}
-
-u8 pmac_xpram_read(int xpaddr)
-{
- int offset = pmac_get_partition(pmac_nvram_XPRAM);
- loff_t index;
- u8 buf;
- ssize_t count;
-
- if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
- return 0xff;
- index = offset + xpaddr;
-
- count = ppc_md.nvram_read(&buf, 1, &index);
- if (count != 1)
- return 0xff;
- return buf;
-}
-
-void pmac_xpram_write(int xpaddr, u8 data)
-{
- int offset = pmac_get_partition(pmac_nvram_XPRAM);
- loff_t index;
- u8 buf;
-
- if (offset < 0 || xpaddr < 0 || xpaddr > 0x100)
- return;
- index = offset + xpaddr;
- buf = data;
-
- ppc_md.nvram_write(&buf, 1, &index);
-}
-
-EXPORT_SYMBOL(pmac_get_partition);
-EXPORT_SYMBOL(pmac_xpram_read);
-EXPORT_SYMBOL(pmac_xpram_write);
+++ /dev/null
-/*
- * Support for PCI bridges found on Power Macintoshes.
- * At present the "bandit" and "chaos" bridges are supported.
- * Fortunately you access configuration space in the same
- * way with either bridge.
- *
- * Copyright (C) 2003 Benjamin Herrenschmuidt (benh@kernel.crashing.org)
- * Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/iommu.h>
-#include <asm/ppc-pci.h>
-
-#include "pmac.h"
-
-#define DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* XXX Could be per-controller, but I don't think we risk anything by
- * assuming we won't have both UniNorth and Bandit */
-static int has_uninorth;
-static struct pci_controller *u3_agp;
-struct device_node *k2_skiplist[2];
-
-static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
-{
- for (; node != 0;node = node->sibling) {
- int * bus_range;
- unsigned int *class_code;
- int len;
-
- /* For PCI<->PCI bridges or CardBus bridges, we go down */
- class_code = (unsigned int *) get_property(node, "class-code", NULL);
- if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
- (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
- continue;
- bus_range = (int *) get_property(node, "bus-range", &len);
- if (bus_range != NULL && len > 2 * sizeof(int)) {
- if (bus_range[1] > higher)
- higher = bus_range[1];
- }
- higher = fixup_one_level_bus_range(node->child, higher);
- }
- return higher;
-}
-
-/* This routine fixes the "bus-range" property of all bridges in the
- * system since they tend to have their "last" member wrong on macs
- *
- * Note that the bus numbers manipulated here are OF bus numbers, they
- * are not Linux bus numbers.
- */
-static void __init fixup_bus_range(struct device_node *bridge)
-{
- int * bus_range;
- int len;
-
- /* Lookup the "bus-range" property for the hose */
- bus_range = (int *) get_property(bridge, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s\n",
- bridge->full_name);
- return;
- }
- bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
-}
-
-/*
- * Apple MacRISC (U3, UniNorth, Bandit, Chaos) PCI controllers.
- *
- * The "Bandit" version is present in all early PCI PowerMacs,
- * and up to the first ones using Grackle. Some machines may
- * have 2 bandit controllers (2 PCI busses).
- *
- * "Chaos" is used in some "Bandit"-type machines as a bridge
- * for the separate display bus. It is accessed the same
- * way as bandit, but cannot be probed for devices. It therefore
- * has its own config access functions.
- *
- * The "UniNorth" version is present in all Core99 machines
- * (iBook, G4, new IMacs, and all the recent Apple machines).
- * It contains 3 controllers in one ASIC.
- *
- * The U3 is the bridge used on G5 machines. It contains on
- * AGP bus which is dealt with the old UniNorth access routines
- * and an HyperTransport bus which uses its own set of access
- * functions.
- */
-
-#define MACRISC_CFA0(devfn, off) \
- ((1 << (unsigned long)PCI_SLOT(dev_fn)) \
- | (((unsigned long)PCI_FUNC(dev_fn)) << 8) \
- | (((unsigned long)(off)) & 0xFCUL))
-
-#define MACRISC_CFA1(bus, devfn, off) \
- ((((unsigned long)(bus)) << 16) \
- |(((unsigned long)(devfn)) << 8) \
- |(((unsigned long)(off)) & 0xFCUL) \
- |1UL)
-
-static unsigned long macrisc_cfg_access(struct pci_controller* hose,
- u8 bus, u8 dev_fn, u8 offset)
-{
- unsigned int caddr;
-
- if (bus == hose->first_busno) {
- if (dev_fn < (11 << 3))
- return 0;
- caddr = MACRISC_CFA0(dev_fn, offset);
- } else
- caddr = MACRISC_CFA1(bus, dev_fn, offset);
-
- /* Uninorth will return garbage if we don't read back the value ! */
- do {
- out_le32(hose->cfg_addr, caddr);
- } while (in_le32(hose->cfg_addr) != caddr);
-
- offset &= has_uninorth ? 0x07 : 0x03;
- return ((unsigned long)hose->cfg_data) + offset;
-}
-
-static int macrisc_read_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 *val)
-{
- struct pci_controller *hose;
- unsigned long addr;
-
- hose = pci_bus_to_host(bus);
- if (hose == NULL)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
- /*
- * Note: the caller has already checked that offset is
- * suitably aligned and that len is 1, 2 or 4.
- */
- switch (len) {
- case 1:
- *val = in_8((u8 *)addr);
- break;
- case 2:
- *val = in_le16((u16 *)addr);
- break;
- default:
- *val = in_le32((u32 *)addr);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int macrisc_write_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 val)
-{
- struct pci_controller *hose;
- unsigned long addr;
-
- hose = pci_bus_to_host(bus);
- if (hose == NULL)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = macrisc_cfg_access(hose, bus->number, devfn, offset);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
- /*
- * Note: the caller has already checked that offset is
- * suitably aligned and that len is 1, 2 or 4.
- */
- switch (len) {
- case 1:
- out_8((u8 *)addr, val);
- (void) in_8((u8 *)addr);
- break;
- case 2:
- out_le16((u16 *)addr, val);
- (void) in_le16((u16 *)addr);
- break;
- default:
- out_le32((u32 *)addr, val);
- (void) in_le32((u32 *)addr);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops macrisc_pci_ops =
-{
- macrisc_read_config,
- macrisc_write_config
-};
-
-/*
- * These versions of U3 HyperTransport config space access ops do not
- * implement self-view of the HT host yet
- */
-
-/*
- * This function deals with some "special cases" devices.
- *
- * 0 -> No special case
- * 1 -> Skip the device but act as if the access was successfull
- * (return 0xff's on reads, eventually, cache config space
- * accesses in a later version)
- * -1 -> Hide the device (unsuccessful acess)
- */
-static int u3_ht_skip_device(struct pci_controller *hose,
- struct pci_bus *bus, unsigned int devfn)
-{
- struct device_node *busdn, *dn;
- int i;
-
- /* We only allow config cycles to devices that are in OF device-tree
- * as we are apparently having some weird things going on with some
- * revs of K2 on recent G5s
- */
- if (bus->self)
- busdn = pci_device_to_OF_node(bus->self);
- else
- busdn = hose->arch_data;
- for (dn = busdn->child; dn; dn = dn->sibling)
- if (dn->data && PCI_DN(dn)->devfn == devfn)
- break;
- if (dn == NULL)
- return -1;
-
- /*
- * When a device in K2 is powered down, we die on config
- * cycle accesses. Fix that here.
- */
- for (i=0; i<2; i++)
- if (k2_skiplist[i] == dn)
- return 1;
-
- return 0;
-}
-
-#define U3_HT_CFA0(devfn, off) \
- ((((unsigned long)devfn) << 8) | offset)
-#define U3_HT_CFA1(bus, devfn, off) \
- (U3_HT_CFA0(devfn, off) \
- + (((unsigned long)bus) << 16) \
- + 0x01000000UL)
-
-static unsigned long u3_ht_cfg_access(struct pci_controller* hose,
- u8 bus, u8 devfn, u8 offset)
-{
- if (bus == hose->first_busno) {
- /* For now, we don't self probe U3 HT bridge */
- if (PCI_SLOT(devfn) == 0)
- return 0;
- return ((unsigned long)hose->cfg_data) + U3_HT_CFA0(devfn, offset);
- } else
- return ((unsigned long)hose->cfg_data) + U3_HT_CFA1(bus, devfn, offset);
-}
-
-static int u3_ht_read_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 *val)
-{
- struct pci_controller *hose;
- unsigned long addr;
-
-
- hose = pci_bus_to_host(bus);
- if (hose == NULL)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- switch (u3_ht_skip_device(hose, bus, devfn)) {
- case 0:
- break;
- case 1:
- switch (len) {
- case 1:
- *val = 0xff; break;
- case 2:
- *val = 0xffff; break;
- default:
- *val = 0xfffffffful; break;
- }
- return PCIBIOS_SUCCESSFUL;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- /*
- * Note: the caller has already checked that offset is
- * suitably aligned and that len is 1, 2 or 4.
- */
- switch (len) {
- case 1:
- *val = in_8((u8 *)addr);
- break;
- case 2:
- *val = in_le16((u16 *)addr);
- break;
- default:
- *val = in_le32((u32 *)addr);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int u3_ht_write_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 val)
-{
- struct pci_controller *hose;
- unsigned long addr;
-
- hose = pci_bus_to_host(bus);
- if (hose == NULL)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- addr = u3_ht_cfg_access(hose, bus->number, devfn, offset);
- if (!addr)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- switch (u3_ht_skip_device(hose, bus, devfn)) {
- case 0:
- break;
- case 1:
- return PCIBIOS_SUCCESSFUL;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- /*
- * Note: the caller has already checked that offset is
- * suitably aligned and that len is 1, 2 or 4.
- */
- switch (len) {
- case 1:
- out_8((u8 *)addr, val);
- (void) in_8((u8 *)addr);
- break;
- case 2:
- out_le16((u16 *)addr, val);
- (void) in_le16((u16 *)addr);
- break;
- default:
- out_le32((u32 *)addr, val);
- (void) in_le32((u32 *)addr);
- break;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops u3_ht_pci_ops =
-{
- u3_ht_read_config,
- u3_ht_write_config
-};
-
-static void __init setup_u3_agp(struct pci_controller* hose)
-{
- /* On G5, we move AGP up to high bus number so we don't need
- * to reassign bus numbers for HT. If we ever have P2P bridges
- * on AGP, we'll have to move pci_assign_all_buses to the
- * pci_controller structure so we enable it for AGP and not for
- * HT childs.
- * We hard code the address because of the different size of
- * the reg address cell, we shall fix that by killing struct
- * reg_property and using some accessor functions instead
- */
- hose->first_busno = 0xf0;
- hose->last_busno = 0xff;
- has_uninorth = 1;
- hose->ops = ¯isc_pci_ops;
- hose->cfg_addr = ioremap(0xf0000000 + 0x800000, 0x1000);
- hose->cfg_data = ioremap(0xf0000000 + 0xc00000, 0x1000);
-
- u3_agp = hose;
-}
-
-static void __init setup_u3_ht(struct pci_controller* hose)
-{
- struct device_node *np = (struct device_node *)hose->arch_data;
- int i, cur;
-
- hose->ops = &u3_ht_pci_ops;
-
- /* We hard code the address because of the different size of
- * the reg address cell, we shall fix that by killing struct
- * reg_property and using some accessor functions instead
- */
- hose->cfg_data = (volatile unsigned char *)ioremap(0xf2000000, 0x02000000);
-
- /*
- * /ht node doesn't expose a "ranges" property, so we "remove" regions that
- * have been allocated to AGP. So far, this version of the code doesn't assign
- * any of the 0xfxxxxxxx "fine" memory regions to /ht.
- * We need to fix that sooner or later by either parsing all child "ranges"
- * properties or figuring out the U3 address space decoding logic and
- * then read it's configuration register (if any).
- */
- hose->io_base_phys = 0xf4000000;
- hose->io_base_virt = ioremap(hose->io_base_phys, 0x00400000);
- isa_io_base = pci_io_base = (unsigned long) hose->io_base_virt;
- hose->io_resource.name = np->full_name;
- hose->io_resource.start = 0;
- hose->io_resource.end = 0x003fffff;
- hose->io_resource.flags = IORESOURCE_IO;
- hose->pci_mem_offset = 0;
- hose->first_busno = 0;
- hose->last_busno = 0xef;
- hose->mem_resources[0].name = np->full_name;
- hose->mem_resources[0].start = 0x80000000;
- hose->mem_resources[0].end = 0xefffffff;
- hose->mem_resources[0].flags = IORESOURCE_MEM;
-
- if (u3_agp == NULL) {
- DBG("U3 has no AGP, using full resource range\n");
- return;
- }
-
- /* We "remove" the AGP resources from the resources allocated to HT, that
- * is we create "holes". However, that code does assumptions that so far
- * happen to be true (cross fingers...), typically that resources in the
- * AGP node are properly ordered
- */
- cur = 0;
- for (i=0; i<3; i++) {
- struct resource *res = &u3_agp->mem_resources[i];
- if (res->flags != IORESOURCE_MEM)
- continue;
- /* We don't care about "fine" resources */
- if (res->start >= 0xf0000000)
- continue;
- /* Check if it's just a matter of "shrinking" us in one direction */
- if (hose->mem_resources[cur].start == res->start) {
- DBG("U3/HT: shrink start of %d, %08lx -> %08lx\n",
- cur, hose->mem_resources[cur].start, res->end + 1);
- hose->mem_resources[cur].start = res->end + 1;
- continue;
- }
- if (hose->mem_resources[cur].end == res->end) {
- DBG("U3/HT: shrink end of %d, %08lx -> %08lx\n",
- cur, hose->mem_resources[cur].end, res->start - 1);
- hose->mem_resources[cur].end = res->start - 1;
- continue;
- }
- /* No, it's not the case, we need a hole */
- if (cur == 2) {
- /* not enough resources for a hole, we drop part of the range */
- printk(KERN_WARNING "Running out of resources for /ht host !\n");
- hose->mem_resources[cur].end = res->start - 1;
- continue;
- }
- cur++;
- DBG("U3/HT: hole, %d end at %08lx, %d start at %08lx\n",
- cur-1, res->start - 1, cur, res->end + 1);
- hose->mem_resources[cur].name = np->full_name;
- hose->mem_resources[cur].flags = IORESOURCE_MEM;
- hose->mem_resources[cur].start = res->end + 1;
- hose->mem_resources[cur].end = hose->mem_resources[cur-1].end;
- hose->mem_resources[cur-1].end = res->start - 1;
- }
-}
-
-static void __init pmac_process_bridge_OF_ranges(struct pci_controller *hose,
- struct device_node *dev, int primary)
-{
- static unsigned int static_lc_ranges[2024];
- unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
- unsigned int size;
- int rlen = 0, orig_rlen;
- int memno = 0;
- struct resource *res;
- int np, na = prom_n_addr_cells(dev);
-
- np = na + 5;
-
- /* First we try to merge ranges to fix a problem with some pmacs
- * that can have more than 3 ranges, fortunately using contiguous
- * addresses -- BenH
- */
- dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
- if (!dt_ranges)
- return;
- /* lc_ranges = alloc_bootmem(rlen);*/
- lc_ranges = static_lc_ranges;
- if (!lc_ranges)
- return; /* what can we do here ? */
- memcpy(lc_ranges, dt_ranges, rlen);
- orig_rlen = rlen;
-
- /* Let's work on a copy of the "ranges" property instead of damaging
- * the device-tree image in memory
- */
- ranges = lc_ranges;
- prev = NULL;
- while ((rlen -= np * sizeof(unsigned int)) >= 0) {
- if (prev) {
- if (prev[0] == ranges[0] && prev[1] == ranges[1] &&
- (prev[2] + prev[na+4]) == ranges[2] &&
- (prev[na+2] + prev[na+4]) == ranges[na+2]) {
- prev[na+4] += ranges[na+4];
- ranges[0] = 0;
- ranges += np;
- continue;
- }
- }
- prev = ranges;
- ranges += np;
- }
-
- /*
- * The ranges property is laid out as an array of elements,
- * each of which comprises:
- * cells 0 - 2: a PCI address
- * cells 3 or 3+4: a CPU physical address
- * (size depending on dev->n_addr_cells)
- * cells 4+5 or 5+6: the size of the range
- */
- ranges = lc_ranges;
- rlen = orig_rlen;
- while (ranges && (rlen -= np * sizeof(unsigned int)) >= 0) {
- res = NULL;
- size = ranges[na+4];
- switch (ranges[0] >> 24) {
- case 1: /* I/O space */
- if (ranges[2] != 0)
- break;
- hose->io_base_phys = ranges[na+2];
- /* limit I/O space to 16MB */
- if (size > 0x01000000)
- size = 0x01000000;
- hose->io_base_virt = ioremap(ranges[na+2], size);
- if (primary)
- isa_io_base = (unsigned long) hose->io_base_virt;
- res = &hose->io_resource;
- res->flags = IORESOURCE_IO;
- res->start = ranges[2];
- break;
- case 2: /* memory space */
- memno = 0;
- if (ranges[1] == 0 && ranges[2] == 0
- && ranges[na+4] <= (16 << 20)) {
- /* 1st 16MB, i.e. ISA memory area */
-#if 0
- if (primary)
- isa_mem_base = ranges[na+2];
-#endif
- memno = 1;
- }
- while (memno < 3 && hose->mem_resources[memno].flags)
- ++memno;
- if (memno == 0)
- hose->pci_mem_offset = ranges[na+2] - ranges[2];
- if (memno < 3) {
- res = &hose->mem_resources[memno];
- res->flags = IORESOURCE_MEM;
- res->start = ranges[na+2];
- }
- break;
- }
- if (res != NULL) {
- res->name = dev->full_name;
- res->end = res->start + size - 1;
- res->parent = NULL;
- res->sibling = NULL;
- res->child = NULL;
- }
- ranges += np;
- }
-}
-
-/*
- * We assume that if we have a G3 powermac, we have one bridge called
- * "pci" (a MPC106) and no bandit or chaos bridges, and contrariwise,
- * if we have one or more bandit or chaos bridges, we don't have a MPC106.
- */
-static int __init add_bridge(struct device_node *dev)
-{
- int len;
- struct pci_controller *hose;
- char* disp_name;
- int *bus_range;
- int primary = 1;
- struct property *of_prop;
-
- DBG("Adding PCI host bridge %s\n", dev->full_name);
-
- bus_range = (int *) get_property(dev, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
- dev->full_name);
- }
-
- hose = alloc_bootmem(sizeof(struct pci_controller));
- if (hose == NULL)
- return -ENOMEM;
- pci_setup_pci_controller(hose);
-
- hose->arch_data = dev;
- hose->first_busno = bus_range ? bus_range[0] : 0;
- hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
- of_prop = alloc_bootmem(sizeof(struct property) +
- sizeof(hose->global_number));
- if (of_prop) {
- memset(of_prop, 0, sizeof(struct property));
- of_prop->name = "linux,pci-domain";
- of_prop->length = sizeof(hose->global_number);
- of_prop->value = (unsigned char *)&of_prop[1];
- memcpy(of_prop->value, &hose->global_number, sizeof(hose->global_number));
- prom_add_property(dev, of_prop);
- }
-
- disp_name = NULL;
- if (device_is_compatible(dev, "u3-agp")) {
- setup_u3_agp(hose);
- disp_name = "U3-AGP";
- primary = 0;
- } else if (device_is_compatible(dev, "u3-ht")) {
- setup_u3_ht(hose);
- disp_name = "U3-HT";
- primary = 1;
- }
- printk(KERN_INFO "Found %s PCI host bridge. Firmware bus number: %d->%d\n",
- disp_name, hose->first_busno, hose->last_busno);
-
- /* Interpret the "ranges" property */
- /* This also maps the I/O region and sets isa_io/mem_base */
- pmac_process_bridge_OF_ranges(hose, dev, primary);
-
- /* Fixup "bus-range" OF property */
- fixup_bus_range(dev);
-
- return 0;
-}
-
-/*
- * We use our own read_irq_line here because PCI_INTERRUPT_PIN is
- * crap on some of Apple ASICs. We unconditionally use the Open Firmware
- * interrupt number as this is always right.
- */
-static int pmac_pci_read_irq_line(struct pci_dev *pci_dev)
-{
- struct device_node *node;
-
- node = pci_device_to_OF_node(pci_dev);
- if (node == NULL)
- return -1;
- if (node->n_intrs == 0)
- return -1;
- pci_dev->irq = node->intrs[0].line;
- pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq);
-
- return 0;
-}
-
-void __init pmac_pcibios_fixup(void)
-{
- struct pci_dev *dev = NULL;
-
- for_each_pci_dev(dev)
- pmac_pci_read_irq_line(dev);
-}
-
-static void __init pmac_fixup_phb_resources(void)
-{
- struct pci_controller *hose, *tmp;
-
- list_for_each_entry_safe(hose, tmp, &hose_list, list_node) {
- unsigned long offset = (unsigned long)hose->io_base_virt - pci_io_base;
- hose->io_resource.start += offset;
- hose->io_resource.end += offset;
- printk(KERN_INFO "PCI Host %d, io start: %lx; io end: %lx\n",
- hose->global_number,
- hose->io_resource.start, hose->io_resource.end);
- }
-}
-
-void __init pmac_pci_init(void)
-{
- struct device_node *np, *root;
- struct device_node *ht = NULL;
-
- /* Probe root PCI hosts, that is on U3 the AGP host and the
- * HyperTransport host. That one is actually "kept" around
- * and actually added last as it's resource management relies
- * on the AGP resources to have been setup first
- */
- root = of_find_node_by_path("/");
- if (root == NULL) {
- printk(KERN_CRIT "pmac_find_bridges: can't find root of device tree\n");
- return;
- }
- for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
- if (np->name == NULL)
- continue;
- if (strcmp(np->name, "pci") == 0) {
- if (add_bridge(np) == 0)
- of_node_get(np);
- }
- if (strcmp(np->name, "ht") == 0) {
- of_node_get(np);
- ht = np;
- }
- }
- of_node_put(root);
-
- /* Now setup the HyperTransport host if we found any
- */
- if (ht && add_bridge(ht) != 0)
- of_node_put(ht);
-
- /* Fixup the IO resources on our host bridges as the common code
- * does it only for childs of the host bridges
- */
- pmac_fixup_phb_resources();
-
- /* Setup the linkage between OF nodes and PHBs */
- pci_devs_phb_init();
-
- /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We
- * assume there is no P2P bridge on the AGP bus, which should be a
- * safe assumptions hopefully.
- */
- if (u3_agp) {
- struct device_node *np = u3_agp->arch_data;
- PCI_DN(np)->busno = 0xf0;
- for (np = np->child; np; np = np->sibling)
- PCI_DN(np)->busno = 0xf0;
- }
-
- pmac_check_ht_link();
-
- /* Tell pci.c to not use the common resource allocation mecanism */
- pci_probe_only = 1;
-
- /* Allow all IO */
- io_page_mask = -1;
-}
-
-/*
- * Disable second function on K2-SATA, it's broken
- * and disable IO BARs on first one
- */
-static void fixup_k2_sata(struct pci_dev* dev)
-{
- int i;
- u16 cmd;
-
- if (PCI_FUNC(dev->devfn) > 0) {
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- for (i = 0; i < 6; i++) {
- dev->resource[i].start = dev->resource[i].end = 0;
- dev->resource[i].flags = 0;
- pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
- }
- } else {
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- cmd &= ~PCI_COMMAND_IO;
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- for (i = 0; i < 5; i++) {
- dev->resource[i].start = dev->resource[i].end = 0;
- dev->resource[i].flags = 0;
- pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + 4 * i, 0);
- }
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, 0x0240, fixup_k2_sata);
-
+++ /dev/null
-/*
- * arch/ppc/platforms/setup.c
- *
- * PowerPC version
- * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * Adapted for Power Macintosh by Paul Mackerras
- * Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
- *
- * Derived from "arch/alpha/kernel/setup.c"
- * Copyright (C) 1995 Linus Torvalds
- *
- * Maintained by Benjamin Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-/*
- * bootup setup stuff..
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/major.h>
-#include <linux/initrd.h>
-#include <linux/vt_kern.h>
-#include <linux/console.h>
-#include <linux/ide.h>
-#include <linux/pci.h>
-#include <linux/adb.h>
-#include <linux/cuda.h>
-#include <linux/pmu.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/bitops.h>
-
-#include <asm/processor.h>
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/machdep.h>
-#include <asm/dma.h>
-#include <asm/btext.h>
-#include <asm/cputable.h>
-#include <asm/pmac_feature.h>
-#include <asm/time.h>
-#include <asm/of_device.h>
-#include <asm/lmb.h>
-#include <asm/smu.h>
-#include <asm/pmc.h>
-#include <asm/mpic.h>
-#include <asm/udbg.h>
-
-#include "pmac.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-static int current_root_goodness = -1;
-#define DEFAULT_ROOT_DEVICE Root_SDA1 /* sda1 - slightly silly choice */
-
-extern int powersave_nap;
-int sccdbg;
-
-sys_ctrler_t sys_ctrler;
-EXPORT_SYMBOL(sys_ctrler);
-
-#ifdef CONFIG_PMAC_SMU
-unsigned long smu_cmdbuf_abs;
-EXPORT_SYMBOL(smu_cmdbuf_abs);
-#endif
-
-extern void udbg_init_scc(struct device_node *np);
-
-static void pmac_show_cpuinfo(struct seq_file *m)
-{
- struct device_node *np;
- char *pp;
- int plen;
- char* mbname;
- int mbmodel = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
- PMAC_MB_INFO_MODEL, 0);
- unsigned int mbflags = pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL,
- PMAC_MB_INFO_FLAGS, 0);
-
- if (pmac_call_feature(PMAC_FTR_GET_MB_INFO, NULL, PMAC_MB_INFO_NAME,
- (long)&mbname) != 0)
- mbname = "Unknown";
-
- /* find motherboard type */
- seq_printf(m, "machine\t\t: ");
- np = find_devices("device-tree");
- if (np != NULL) {
- pp = (char *) get_property(np, "model", NULL);
- if (pp != NULL)
- seq_printf(m, "%s\n", pp);
- else
- seq_printf(m, "PowerMac\n");
- pp = (char *) get_property(np, "compatible", &plen);
- if (pp != NULL) {
- seq_printf(m, "motherboard\t:");
- while (plen > 0) {
- int l = strlen(pp) + 1;
- seq_printf(m, " %s", pp);
- plen -= l;
- pp += l;
- }
- seq_printf(m, "\n");
- }
- } else
- seq_printf(m, "PowerMac\n");
-
- /* print parsed model */
- seq_printf(m, "detected as\t: %d (%s)\n", mbmodel, mbname);
- seq_printf(m, "pmac flags\t: %08x\n", mbflags);
-
- /* Indicate newworld */
- seq_printf(m, "pmac-generation\t: NewWorld\n");
-}
-
-
-static void __init pmac_setup_arch(void)
-{
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000;
-
- /* Probe motherboard chipset */
- pmac_feature_init();
-#if 0
- /* Lock-enable the SCC channel used for debug */
- if (sccdbg) {
- np = of_find_node_by_name(NULL, "escc");
- if (np)
- pmac_call_feature(PMAC_FTR_SCC_ENABLE, np,
- PMAC_SCC_ASYNC | PMAC_SCC_FLAG_XMON, 1);
- }
-#endif
- /* We can NAP */
- powersave_nap = 1;
-
-#ifdef CONFIG_ADB_PMU
- /* Initialize the PMU if any */
- find_via_pmu();
-#endif
-#ifdef CONFIG_PMAC_SMU
- /* Initialize the SMU if any */
- smu_init();
-#endif
-
- /* Init NVRAM access */
- pmac_nvram_init();
-
- /* Setup SMP callback */
-#ifdef CONFIG_SMP
- pmac_setup_smp();
-#endif
-
- /* Lookup PCI hosts */
- pmac_pci_init();
-
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
- printk(KERN_INFO "Using native/NAP idle loop\n");
-}
-
-#ifdef CONFIG_SCSI
-void note_scsi_host(struct device_node *node, void *host)
-{
- /* Obsolete */
-}
-#endif
-
-
-static int initializing = 1;
-
-static int pmac_late_init(void)
-{
- initializing = 0;
- return 0;
-}
-
-late_initcall(pmac_late_init);
-
-/* can't be __init - can be called whenever a disk is first accessed */
-void note_bootable_part(dev_t dev, int part, int goodness)
-{
- extern dev_t boot_dev;
- char *p;
-
- if (!initializing)
- return;
- if ((goodness <= current_root_goodness) &&
- ROOT_DEV != DEFAULT_ROOT_DEVICE)
- return;
- p = strstr(saved_command_line, "root=");
- if (p != NULL && (p == saved_command_line || p[-1] == ' '))
- return;
-
- if (!boot_dev || dev == boot_dev) {
- ROOT_DEV = dev + part;
- boot_dev = 0;
- current_root_goodness = goodness;
- }
-}
-
-static void pmac_restart(char *cmd)
-{
- switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
- case SYS_CTRLER_PMU:
- pmu_restart();
- break;
-#endif
-
-#ifdef CONFIG_PMAC_SMU
- case SYS_CTRLER_SMU:
- smu_restart();
- break;
-#endif
- default:
- ;
- }
-}
-
-static void pmac_power_off(void)
-{
- switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
- case SYS_CTRLER_PMU:
- pmu_shutdown();
- break;
-#endif
-#ifdef CONFIG_PMAC_SMU
- case SYS_CTRLER_SMU:
- smu_shutdown();
- break;
-#endif
- default:
- ;
- }
-}
-
-static void pmac_halt(void)
-{
- pmac_power_off();
-}
-
-/*
- * Early initialization.
- */
-static void __init pmac_init_early(void)
-{
- DBG(" -> pmac_init_early\n");
-
- /* Initialize hash table, from now on, we can take hash faults
- * and call ioremap
- */
- hpte_init_native();
-
- /* Init SCC */
- if (strstr(cmd_line, "sccdbg")) {
- sccdbg = 1;
- udbg_init_scc(NULL);
- }
-
- /* Setup interrupt mapping options */
- ppc64_interrupt_controller = IC_OPEN_PIC;
-
- iommu_init_early_u3();
-
- DBG(" <- pmac_init_early\n");
-}
-
-static int pmac_u3_cascade(struct pt_regs *regs, void *data)
-{
- return mpic_get_one_irq((struct mpic *)data, regs);
-}
-
-static __init void pmac_init_IRQ(void)
-{
- struct device_node *irqctrler = NULL;
- struct device_node *irqctrler2 = NULL;
- struct device_node *np = NULL;
- struct mpic *mpic1, *mpic2;
-
- /* We first try to detect Apple's new Core99 chipset, since mac-io
- * is quite different on those machines and contains an IBM MPIC2.
- */
- while ((np = of_find_node_by_type(np, "open-pic")) != NULL) {
- struct device_node *parent = of_get_parent(np);
- if (parent && !strcmp(parent->name, "u3"))
- irqctrler2 = of_node_get(np);
- else
- irqctrler = of_node_get(np);
- of_node_put(parent);
- }
- if (irqctrler != NULL && irqctrler->n_addrs > 0) {
- unsigned char senses[128];
-
- printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n",
- (unsigned int)irqctrler->addrs[0].address);
-
- prom_get_irq_senses(senses, 0, 128);
- mpic1 = mpic_alloc(irqctrler->addrs[0].address,
- MPIC_PRIMARY | MPIC_WANTS_RESET,
- 0, 0, 128, 256, senses, 128, " K2-MPIC ");
- BUG_ON(mpic1 == NULL);
- mpic_init(mpic1);
-
- if (irqctrler2 != NULL && irqctrler2->n_intrs > 0 &&
- irqctrler2->n_addrs > 0) {
- printk(KERN_INFO "Slave OpenPIC at 0x%08x hooked on IRQ %d\n",
- (u32)irqctrler2->addrs[0].address,
- irqctrler2->intrs[0].line);
-
- pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler2, 0, 0);
- prom_get_irq_senses(senses, 128, 128 + 128);
-
- /* We don't need to set MPIC_BROKEN_U3 here since we don't have
- * hypertransport interrupts routed to it
- */
- mpic2 = mpic_alloc(irqctrler2->addrs[0].address,
- MPIC_BIG_ENDIAN | MPIC_WANTS_RESET,
- 0, 128, 128, 0, senses, 128, " U3-MPIC ");
- BUG_ON(mpic2 == NULL);
- mpic_init(mpic2);
- mpic_setup_cascade(irqctrler2->intrs[0].line,
- pmac_u3_cascade, mpic2);
- }
- }
- of_node_put(irqctrler);
- of_node_put(irqctrler2);
-}
-
-static void __init pmac_progress(char *s, unsigned short hex)
-{
- if (sccdbg) {
- udbg_puts(s);
- udbg_puts("\n");
- }
-#ifdef CONFIG_BOOTX_TEXT
- else if (boot_text_mapped) {
- btext_drawstring(s);
- btext_drawstring("\n");
- }
-#endif /* CONFIG_BOOTX_TEXT */
-}
-
-/*
- * pmac has no legacy IO, anything calling this function has to
- * fail or bad things will happen
- */
-static int pmac_check_legacy_ioport(unsigned int baseport)
-{
- return -ENODEV;
-}
-
-static int __init pmac_declare_of_platform_devices(void)
-{
- struct device_node *np, *npp;
-
- npp = of_find_node_by_name(NULL, "u3");
- if (npp) {
- for (np = NULL; (np = of_get_next_child(npp, np)) != NULL;) {
- if (strncmp(np->name, "i2c", 3) == 0) {
- of_platform_device_create(np, "u3-i2c", NULL);
- of_node_put(np);
- break;
- }
- }
- of_node_put(npp);
- }
- npp = of_find_node_by_type(NULL, "smu");
- if (npp) {
- of_platform_device_create(npp, "smu", NULL);
- of_node_put(npp);
- }
-
- return 0;
-}
-
-device_initcall(pmac_declare_of_platform_devices);
-
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init pmac_probe(int platform)
-{
- if (platform != PLATFORM_POWERMAC)
- return 0;
- /*
- * On U3, the DART (iommu) must be allocated now since it
- * has an impact on htab_initialize (due to the large page it
- * occupies having to be broken up so the DART itself is not
- * part of the cacheable linar mapping
- */
- alloc_u3_dart_table();
-
-#ifdef CONFIG_PMAC_SMU
- /*
- * SMU based G5s need some memory below 2Gb, at least the current
- * driver needs that. We have to allocate it now. We allocate 4k
- * (1 small page) for now.
- */
- smu_cmdbuf_abs = lmb_alloc_base(4096, 4096, 0x80000000UL);
-#endif /* CONFIG_PMAC_SMU */
-
- return 1;
-}
-
-static int pmac_probe_mode(struct pci_bus *bus)
-{
- struct device_node *node = bus->sysdata;
-
- /* We need to use normal PCI probing for the AGP bus,
- since the device for the AGP bridge isn't in the tree. */
- if (bus->self == NULL && device_is_compatible(node, "u3-agp"))
- return PCI_PROBE_NORMAL;
-
- return PCI_PROBE_DEVTREE;
-}
-
-struct machdep_calls __initdata pmac_md = {
-#ifdef CONFIG_HOTPLUG_CPU
- .cpu_die = generic_mach_cpu_die,
-#endif
- .probe = pmac_probe,
- .setup_arch = pmac_setup_arch,
- .init_early = pmac_init_early,
- .show_cpuinfo = pmac_show_cpuinfo,
- .init_IRQ = pmac_init_IRQ,
- .get_irq = mpic_get_irq,
- .pcibios_fixup = pmac_pcibios_fixup,
- .pci_probe_mode = pmac_probe_mode,
- .restart = pmac_restart,
- .power_off = pmac_power_off,
- .halt = pmac_halt,
- .get_boot_time = pmac_get_boot_time,
- .set_rtc_time = pmac_set_rtc_time,
- .get_rtc_time = pmac_get_rtc_time,
- .calibrate_decr = pmac_calibrate_decr,
- .feature_call = pmac_do_feature_call,
- .progress = pmac_progress,
- .check_legacy_ioport = pmac_check_legacy_ioport,
- .idle_loop = native_idle,
- .enable_pmcs = power4_enable_pmcs,
-};
+++ /dev/null
-/*
- * SMP support for power macintosh.
- *
- * We support both the old "powersurge" SMP architecture
- * and the current Core99 (G4 PowerMac) machines.
- *
- * Note that we don't support the very first rev. of
- * Apple/DayStar 2 CPUs board, the one with the funky
- * watchdog. Hopefully, none of these should be there except
- * maybe internally to Apple. I should probably still add some
- * code to detect this card though and disable SMP. --BenH.
- *
- * Support Macintosh G4 SMP by Troy Benjegerdes (hozer@drgw.net)
- * and Ben Herrenschmidt <benh@kernel.crashing.org>.
- *
- * Support for DayStar quad CPU cards
- * Copyright (C) XLR8, Inc. 1994-2000
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/irq.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/machdep.h>
-#include <asm/pmac_feature.h>
-#include <asm/time.h>
-#include <asm/cacheflush.h>
-#include <asm/keylargo.h>
-#include <asm/pmac_low_i2c.h>
-#include <asm/mpic.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-extern void __secondary_start_pmac_0(void);
-
-extern struct smp_ops_t *smp_ops;
-
-static void (*pmac_tb_freeze)(int freeze);
-static struct device_node *pmac_tb_clock_chip_host;
-static u8 pmac_tb_pulsar_addr;
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned long timebase;
-
-static void smp_core99_cypress_tb_freeze(int freeze)
-{
- u8 data;
- int rc;
-
- /* Strangely, the device-tree says address is 0xd2, but darwin
- * accesses 0xd0 ...
- */
- pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
- rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- 0xd0 | pmac_low_i2c_read,
- 0x81, &data, 1);
- if (rc != 0)
- goto bail;
-
- data = (data & 0xf3) | (freeze ? 0x00 : 0x0c);
-
- pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
- rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- 0xd0 | pmac_low_i2c_write,
- 0x81, &data, 1);
-
- bail:
- if (rc != 0) {
- printk("Cypress Timebase %s rc: %d\n",
- freeze ? "freeze" : "unfreeze", rc);
- panic("Timebase freeze failed !\n");
- }
-}
-
-static void smp_core99_pulsar_tb_freeze(int freeze)
-{
- u8 data;
- int rc;
-
- pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_combined);
- rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- pmac_tb_pulsar_addr | pmac_low_i2c_read,
- 0x2e, &data, 1);
- if (rc != 0)
- goto bail;
-
- data = (data & 0x88) | (freeze ? 0x11 : 0x22);
-
- pmac_low_i2c_setmode(pmac_tb_clock_chip_host, pmac_low_i2c_mode_stdsub);
- rc = pmac_low_i2c_xfer(pmac_tb_clock_chip_host,
- pmac_tb_pulsar_addr | pmac_low_i2c_write,
- 0x2e, &data, 1);
- bail:
- if (rc != 0) {
- printk(KERN_ERR "Pulsar Timebase %s rc: %d\n",
- freeze ? "freeze" : "unfreeze", rc);
- panic("Timebase freeze failed !\n");
- }
-}
-
-
-static void smp_core99_give_timebase(void)
-{
- /* Open i2c bus for synchronous access */
- if (pmac_low_i2c_open(pmac_tb_clock_chip_host, 0))
- panic("Can't open i2c for TB sync !\n");
-
- spin_lock(&timebase_lock);
- (*pmac_tb_freeze)(1);
- mb();
- timebase = get_tb();
- spin_unlock(&timebase_lock);
-
- while (timebase)
- barrier();
-
- spin_lock(&timebase_lock);
- (*pmac_tb_freeze)(0);
- spin_unlock(&timebase_lock);
-
- /* Close i2c bus */
- pmac_low_i2c_close(pmac_tb_clock_chip_host);
-}
-
-
-static void __devinit smp_core99_take_timebase(void)
-{
- while (!timebase)
- barrier();
- spin_lock(&timebase_lock);
- set_tb(timebase >> 32, timebase & 0xffffffff);
- timebase = 0;
- spin_unlock(&timebase_lock);
-}
-
-
-static int __init smp_core99_probe(void)
-{
- struct device_node *cpus;
- struct device_node *cc;
- int ncpus = 0;
-
- /* Maybe use systemconfiguration here ? */
- if (ppc_md.progress) ppc_md.progress("smp_core99_probe", 0x345);
-
- /* Count CPUs in the device-tree */
- for (cpus = NULL; (cpus = of_find_node_by_type(cpus, "cpu")) != NULL;)
- ++ncpus;
-
- printk(KERN_INFO "PowerMac SMP probe found %d cpus\n", ncpus);
-
- /* Nothing more to do if less than 2 of them */
- if (ncpus <= 1)
- return 1;
-
- /* HW sync only on these platforms */
- if (!machine_is_compatible("PowerMac7,2") &&
- !machine_is_compatible("PowerMac7,3") &&
- !machine_is_compatible("RackMac3,1"))
- goto nohwsync;
-
- /* Look for the clock chip */
- for (cc = NULL; (cc = of_find_node_by_name(cc, "i2c-hwclock")) != NULL;) {
- struct device_node *p = of_get_parent(cc);
- u32 *reg;
- int ok;
- ok = p && device_is_compatible(p, "uni-n-i2c");
- if (!ok)
- goto next;
- reg = (u32 *)get_property(cc, "reg", NULL);
- if (reg == NULL)
- goto next;
- switch (*reg) {
- case 0xd2:
- if (device_is_compatible(cc, "pulsar-legacy-slewing")) {
- pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
- pmac_tb_pulsar_addr = 0xd2;
- printk(KERN_INFO "Timebase clock is Pulsar chip\n");
- } else if (device_is_compatible(cc, "cy28508")) {
- pmac_tb_freeze = smp_core99_cypress_tb_freeze;
- printk(KERN_INFO "Timebase clock is Cypress chip\n");
- }
- break;
- case 0xd4:
- pmac_tb_freeze = smp_core99_pulsar_tb_freeze;
- pmac_tb_pulsar_addr = 0xd4;
- printk(KERN_INFO "Timebase clock is Pulsar chip\n");
- break;
- }
- if (pmac_tb_freeze != NULL) {
- pmac_tb_clock_chip_host = p;
- smp_ops->give_timebase = smp_core99_give_timebase;
- smp_ops->take_timebase = smp_core99_take_timebase;
- of_node_put(cc);
- of_node_put(p);
- break;
- }
- next:
- of_node_put(p);
- }
-
- nohwsync:
- mpic_request_ipis();
-
- return ncpus;
-}
-
-static void __init smp_core99_kick_cpu(int nr)
-{
- unsigned int save_vector, j;
- unsigned long new_vector;
- unsigned long flags;
- volatile unsigned int *vector
- = ((volatile unsigned int *)(KERNELBASE+0x100));
-
- if (nr < 1 || nr > 3)
- return;
- if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu", 0x346);
-
- local_irq_save(flags);
- local_irq_disable();
-
- /* Save reset vector */
- save_vector = *vector;
-
- /* Setup fake reset vector that does
- * b __secondary_start_pmac_0 + nr*8 - KERNELBASE
- */
- new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8;
- *vector = 0x48000002 + (new_vector - KERNELBASE);
-
- /* flush data cache and inval instruction cache */
- flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
- /* Put some life in our friend */
- pmac_call_feature(PMAC_FTR_RESET_CPU, NULL, nr, 0);
- paca[nr].cpu_start = 1;
-
- /* FIXME: We wait a bit for the CPU to take the exception, I should
- * instead wait for the entry code to set something for me. Well,
- * ideally, all that crap will be done in prom.c and the CPU left
- * in a RAM-based wait loop like CHRP.
- */
- for (j = 1; j < 1000000; j++)
- mb();
-
- /* Restore our exception vector */
- *vector = save_vector;
- flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
-
- local_irq_restore(flags);
- if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);
-}
-
-static void __init smp_core99_setup_cpu(int cpu_nr)
-{
- /* Setup MPIC */
- mpic_setup_this_cpu();
-
- if (cpu_nr == 0) {
- extern void g5_phy_disable_cpu1(void);
-
- /* If we didn't start the second CPU, we must take
- * it off the bus
- */
- if (num_online_cpus() < 2)
- g5_phy_disable_cpu1();
- if (ppc_md.progress) ppc_md.progress("smp_core99_setup_cpu 0 done", 0x349);
- }
-}
-
-struct smp_ops_t core99_smp_ops = {
- .message_pass = smp_mpic_message_pass,
- .probe = smp_core99_probe,
- .kick_cpu = smp_core99_kick_cpu,
- .setup_cpu = smp_core99_setup_cpu,
- .give_timebase = smp_generic_give_timebase,
- .take_timebase = smp_generic_take_timebase,
-};
-
-void __init pmac_setup_smp(void)
-{
- smp_ops = &core99_smp_ops;
-#ifdef CONFIG_HOTPLUG_CPU
- smp_ops->cpu_enable = generic_cpu_enable;
- smp_ops->cpu_disable = generic_cpu_disable;
- smp_ops->cpu_die = generic_cpu_die;
-#endif
-}
+++ /dev/null
-/*
- * Support for periodic interrupts (100 per second) and for getting
- * the current time from the RTC on Power Macintoshes.
- *
- * We use the decrementer register for our periodic interrupts.
- *
- * Paul Mackerras August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- * Copyright (C) 2003-2005 Benjamin Herrenschmidt.
- *
- */
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/interrupt.h>
-#include <linux/rtc.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/smu.h>
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* Apparently the RTC stores seconds since 1 Jan 1904 */
-#define RTC_OFFSET 2082844800
-
-/*
- * Calibrate the decrementer frequency with the VIA timer 1.
- */
-#define VIA_TIMER_FREQ_6 4700000 /* time 1 frequency * 6 */
-
-extern struct timezone sys_tz;
-extern void to_tm(int tim, struct rtc_time * tm);
-
-void pmac_get_rtc_time(struct rtc_time *tm)
-{
- switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
- case SYS_CTRLER_PMU: {
- /* TODO: Move that to a function in the PMU driver */
- struct adb_request req;
- unsigned int now;
-
- if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
- return;
- pmu_wait_complete(&req);
- if (req.reply_len != 4)
- printk(KERN_ERR "pmac_get_rtc_time: PMU returned a %d"
- " bytes reply\n", req.reply_len);
- now = (req.reply[0] << 24) + (req.reply[1] << 16)
- + (req.reply[2] << 8) + req.reply[3];
- DBG("get: %u -> %u\n", (int)now, (int)(now - RTC_OFFSET));
- now -= RTC_OFFSET;
-
- to_tm(now, tm);
- tm->tm_year -= 1900;
- tm->tm_mon -= 1;
-
- DBG("-> tm_mday: %d, tm_mon: %d, tm_year: %d, %d:%02d:%02d\n",
- tm->tm_mday, tm->tm_mon, tm->tm_year,
- tm->tm_hour, tm->tm_min, tm->tm_sec);
- break;
- }
-#endif /* CONFIG_ADB_PMU */
-
-#ifdef CONFIG_PMAC_SMU
- case SYS_CTRLER_SMU:
- smu_get_rtc_time(tm, 1);
- break;
-#endif /* CONFIG_PMAC_SMU */
- default:
- ;
- }
-}
-
-int pmac_set_rtc_time(struct rtc_time *tm)
-{
- switch(sys_ctrler) {
-#ifdef CONFIG_ADB_PMU
- case SYS_CTRLER_PMU: {
- /* TODO: Move that to a function in the PMU driver */
- struct adb_request req;
- unsigned int nowtime;
-
- DBG("set: tm_mday: %d, tm_mon: %d, tm_year: %d,"
- " %d:%02d:%02d\n",
- tm->tm_mday, tm->tm_mon, tm->tm_year,
- tm->tm_hour, tm->tm_min, tm->tm_sec);
-
- nowtime = mktime(tm->tm_year + 1900, tm->tm_mon + 1,
- tm->tm_mday, tm->tm_hour, tm->tm_min,
- tm->tm_sec);
-
- DBG("-> %u -> %u\n", (int)nowtime,
- (int)(nowtime + RTC_OFFSET));
- nowtime += RTC_OFFSET;
-
- if (pmu_request(&req, NULL, 5, PMU_SET_RTC,
- nowtime >> 24, nowtime >> 16,
- nowtime >> 8, nowtime) < 0)
- return -ENXIO;
- pmu_wait_complete(&req);
- if (req.reply_len != 0)
- printk(KERN_ERR "pmac_set_rtc_time: PMU returned a %d"
- " bytes reply\n", req.reply_len);
- return 0;
- }
-#endif /* CONFIG_ADB_PMU */
-
-#ifdef CONFIG_PMAC_SMU
- case SYS_CTRLER_SMU:
- return smu_set_rtc_time(tm, 1);
-#endif /* CONFIG_PMAC_SMU */
- default:
- return -ENODEV;
- }
-}
-
-unsigned long __init pmac_get_boot_time(void)
-{
- struct rtc_time tm;
-
- pmac_get_rtc_time(&tm);
- return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
- tm.tm_hour, tm.tm_min, tm.tm_sec);
-}
-
-/*
- * Query the OF and get the decr frequency.
- * FIXME: merge this with generic_calibrate_decr
- */
-void __init pmac_calibrate_decr(void)
-{
- struct device_node *cpu;
- unsigned int *fp;
-
- /*
- * The cpu node should have a timebase-frequency property
- * to tell us the rate at which the decrementer counts.
- */
- cpu = find_type_devices("cpu");
- if (cpu == 0)
- panic("can't find cpu node in time_init");
- fp = (unsigned int *) get_property(cpu, "timebase-frequency", NULL);
- if (fp == 0)
- panic("can't get cpu timebase frequency");
- ppc_tb_freq = *fp;
-
- fp = (unsigned int *)get_property(cpu, "clock-frequency", NULL);
- if (fp == 0)
- panic("can't get cpu processor frequency");
- ppc_proc_freq = *fp;
-}
-
projects / linux-2.6 / commitdiff