]> err.no Git - linux-2.6/blobdiff - arch/powerpc/sysdev/fsl_soc.c
Merge git://git.infradead.org/mtd-2.6
[linux-2.6] / arch / powerpc / sysdev / fsl_soc.c
index c765d7a5217b84842832628885a1477785b903bc..2c5388ce902abfaa3fd9f400c231a3dd64735cc5 100644 (file)
@@ -24,6 +24,7 @@
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/phy.h>
+#include <linux/phy_fixed.h>
 #include <linux/spi/spi.h>
 #include <linux/fsl_devices.h>
 #include <linux/fs_enet_pd.h>
@@ -54,10 +55,18 @@ phys_addr_t get_immrbase(void)
        soc = of_find_node_by_type(NULL, "soc");
        if (soc) {
                int size;
-               const void *prop = of_get_property(soc, "reg", &size);
+               u32 naddr;
+               const u32 *prop = of_get_property(soc, "#address-cells", &size);
 
+               if (prop && size == 4)
+                       naddr = *prop;
+               else
+                       naddr = 2;
+
+               prop = of_get_property(soc, "ranges", &size);
                if (prop)
-                       immrbase = of_translate_address(soc, prop);
+                       immrbase = of_translate_address(soc, prop + naddr);
+
                of_node_put(soc);
        }
 
@@ -66,7 +75,7 @@ phys_addr_t get_immrbase(void)
 
 EXPORT_SYMBOL(get_immrbase);
 
-#if defined(CONFIG_CPM2) || defined(CONFIG_8xx)
+#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
 
 static u32 brgfreq = -1;
 
@@ -91,11 +100,21 @@ u32 get_brgfreq(void)
 
        /* Legacy device binding -- will go away when no users are left. */
        node = of_find_node_by_type(NULL, "cpm");
+       if (!node)
+               node = of_find_compatible_node(NULL, NULL, "fsl,qe");
+       if (!node)
+               node = of_find_node_by_type(NULL, "qe");
+
        if (node) {
                prop = of_get_property(node, "brg-frequency", &size);
                if (prop && size == 4)
                        brgfreq = *prop;
 
+               if (brgfreq == -1 || brgfreq == 0) {
+                       prop = of_get_property(node, "bus-frequency", &size);
+                       if (prop && size == 4)
+                               brgfreq = *prop / 2;
+               }
                of_node_put(node);
        }
 
@@ -130,17 +149,51 @@ u32 get_baudrate(void)
 EXPORT_SYMBOL(get_baudrate);
 #endif /* CONFIG_CPM2 */
 
-static int __init gfar_mdio_of_init(void)
+#ifdef CONFIG_FIXED_PHY
+static int __init of_add_fixed_phys(void)
 {
+       int ret;
        struct device_node *np;
-       unsigned int i;
+       u32 *fixed_link;
+       struct fixed_phy_status status = {};
+
+       for_each_node_by_name(np, "ethernet") {
+               fixed_link  = (u32 *)of_get_property(np, "fixed-link", NULL);
+               if (!fixed_link)
+                       continue;
+
+               status.link = 1;
+               status.duplex = fixed_link[1];
+               status.speed = fixed_link[2];
+               status.pause = fixed_link[3];
+               status.asym_pause = fixed_link[4];
+
+               ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
+               if (ret) {
+                       of_node_put(np);
+                       return ret;
+               }
+       }
+
+       return 0;
+}
+arch_initcall(of_add_fixed_phys);
+#endif /* CONFIG_FIXED_PHY */
+
+static int __init gfar_mdio_of_init(void)
+{
+       struct device_node *np = NULL;
        struct platform_device *mdio_dev;
        struct resource res;
        int ret;
 
-       for (np = NULL, i = 0;
-            (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
-            i++) {
+       np = of_find_compatible_node(np, NULL, "fsl,gianfar-mdio");
+
+       /* try the deprecated version */
+       if (!np)
+               np = of_find_compatible_node(np, "mdio", "gianfar");
+
+       if (np) {
                int k;
                struct device_node *child = NULL;
                struct gianfar_mdio_data mdio_data;
@@ -179,11 +232,13 @@ static int __init gfar_mdio_of_init(void)
                        goto unreg;
        }
 
+       of_node_put(np);
        return 0;
 
 unreg:
        platform_device_unregister(mdio_dev);
 err:
+       of_node_put(np);
        return ret;
 }
 
@@ -193,7 +248,6 @@ static const char *gfar_tx_intr = "tx";
 static const char *gfar_rx_intr = "rx";
 static const char *gfar_err_intr = "error";
 
-
 static int __init gfar_of_init(void)
 {
        struct device_node *np;
@@ -277,29 +331,43 @@ static int __init gfar_of_init(void)
                        gfar_data.interface = PHY_INTERFACE_MODE_MII;
 
                ph = of_get_property(np, "phy-handle", NULL);
-               phy = of_find_node_by_phandle(*ph);
+               if (ph == NULL) {
+                       u32 *fixed_link;
 
-               if (phy == NULL) {
-                       ret = -ENODEV;
-                       goto unreg;
-               }
+                       fixed_link = (u32 *)of_get_property(np, "fixed-link",
+                                                          NULL);
+                       if (!fixed_link) {
+                               ret = -ENODEV;
+                               goto unreg;
+                       }
 
-               mdio = of_get_parent(phy);
+                       gfar_data.bus_id = 0;
+                       gfar_data.phy_id = fixed_link[0];
+               } else {
+                       phy = of_find_node_by_phandle(*ph);
+
+                       if (phy == NULL) {
+                               ret = -ENODEV;
+                               goto unreg;
+                       }
+
+                       mdio = of_get_parent(phy);
+
+                       id = of_get_property(phy, "reg", NULL);
+                       ret = of_address_to_resource(mdio, 0, &res);
+                       if (ret) {
+                               of_node_put(phy);
+                               of_node_put(mdio);
+                               goto unreg;
+                       }
+
+                       gfar_data.phy_id = *id;
+                       gfar_data.bus_id = res.start;
 
-               id = of_get_property(phy, "reg", NULL);
-               ret = of_address_to_resource(mdio, 0, &res);
-               if (ret) {
                        of_node_put(phy);
                        of_node_put(mdio);
-                       goto unreg;
                }
 
-               gfar_data.phy_id = *id;
-               gfar_data.bus_id = res.start;
-
-               of_node_put(phy);
-               of_node_put(mdio);
-
                ret =
                    platform_device_add_data(gfar_dev, &gfar_data,
                                             sizeof(struct
@@ -390,13 +458,11 @@ static void __init of_register_i2c_devices(struct device_node *adap_node,
 static int __init fsl_i2c_of_init(void)
 {
        struct device_node *np;
-       unsigned int i;
+       unsigned int i = 0;
        struct platform_device *i2c_dev;
        int ret;
 
-       for (np = NULL, i = 0;
-            (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
-            i++) {
+       for_each_compatible_node(np, NULL, "fsl-i2c") {
                struct resource r[2];
                struct fsl_i2c_platform_data i2c_data;
                const unsigned char *flags = NULL;
@@ -432,7 +498,7 @@ static int __init fsl_i2c_of_init(void)
                if (ret)
                        goto unreg;
 
-               of_register_i2c_devices(np, i);
+               of_register_i2c_devices(np, i++);
        }
 
        return 0;
@@ -528,14 +594,12 @@ static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 static int __init fsl_usb_of_init(void)
 {
        struct device_node *np;
-       unsigned int i;
+       unsigned int i = 0;
        struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
                *usb_dev_dr_client = NULL;
        int ret;
 
-       for (np = NULL, i = 0;
-            (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
-            i++) {
+       for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
                struct resource r[2];
                struct fsl_usb2_platform_data usb_data;
                const unsigned char *prop = NULL;
@@ -578,11 +642,10 @@ static int __init fsl_usb_of_init(void)
                                                    fsl_usb2_platform_data));
                if (ret)
                        goto unreg_mph;
+               i++;
        }
 
-       for (np = NULL;
-            (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
-            i++) {
+       for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
                struct resource r[2];
                struct fsl_usb2_platform_data usb_data;
                const unsigned char *prop = NULL;
@@ -654,6 +717,7 @@ static int __init fsl_usb_of_init(void)
                                                fsl_usb2_platform_data))))
                                goto unreg_dr;
                }
+               i++;
        }
        return 0;
 
@@ -1125,13 +1189,12 @@ arch_initcall(fs_enet_of_init);
 
 static int __init fsl_pcmcia_of_init(void)
 {
-       struct device_node *np = NULL;
+       struct device_node *np;
        /*
         * Register all the devices which type is "pcmcia"
         */
-       while ((np = of_find_compatible_node(np,
-                       "pcmcia", "fsl,pq-pcmcia")) != NULL)
-                           of_platform_device_create(np, "m8xx-pcmcia", NULL);
+       for_each_compatible_node(np, "pcmcia", "fsl,pq-pcmcia")
+               of_platform_device_create(np, "m8xx-pcmcia", NULL);
        return 0;
 }
 
@@ -1213,27 +1276,17 @@ arch_initcall(cpm_smc_uart_of_init);
 #endif /* CONFIG_8xx */
 #endif /* CONFIG_PPC_CPM_NEW_BINDING */
 
-int __init fsl_spi_init(struct spi_board_info *board_infos,
-                       unsigned int num_board_infos,
-                       void (*activate_cs)(u8 cs, u8 polarity),
-                       void (*deactivate_cs)(u8 cs, u8 polarity))
+static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
+                                  struct spi_board_info *board_infos,
+                                  unsigned int num_board_infos,
+                                  void (*activate_cs)(u8 cs, u8 polarity),
+                                  void (*deactivate_cs)(u8 cs, u8 polarity))
 {
        struct device_node *np;
-       unsigned int i;
-       const u32 *sysclk;
-
-       np = of_find_node_by_type(NULL, "qe");
-       if (!np)
-               return -ENODEV;
+       unsigned int i = 0;
 
-       sysclk = of_get_property(np, "bus-frequency", NULL);
-       if (!sysclk)
-               return -ENODEV;
-
-       for (np = NULL, i = 1;
-            (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
-            i++) {
-               int ret = 0;
+       for_each_compatible_node(np, type, compatible) {
+               int ret;
                unsigned int j;
                const void *prop;
                struct resource res[2];
@@ -1245,13 +1298,17 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
 
                memset(res, 0, sizeof(res));
 
-               pdata.sysclk = *sysclk;
+               pdata.sysclk = sysclk;
 
                prop = of_get_property(np, "reg", NULL);
                if (!prop)
                        goto err;
                pdata.bus_num = *(u32 *)prop;
 
+               prop = of_get_property(np, "cell-index", NULL);
+               if (prop)
+                       i = *(u32 *)prop;
+
                prop = of_get_property(np, "mode", NULL);
                if (prop && !strcmp(prop, "cpu-qe"))
                        pdata.qe_mode = 1;
@@ -1262,7 +1319,7 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
                }
 
                if (!pdata.max_chipselect)
-                       goto err;
+                       continue;
 
                ret = of_address_to_resource(np, 0, &res[0]);
                if (ret)
@@ -1285,16 +1342,99 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
                if (ret)
                        goto unreg;
 
-               ret = platform_device_register(pdev);
+               ret = platform_device_add(pdev);
                if (ret)
                        goto unreg;
 
-               continue;
+               goto next;
 unreg:
                platform_device_del(pdev);
 err:
-               continue;
+               pr_err("%s: registration failed\n", np->full_name);
+next:
+               i++;
        }
 
+       return i;
+}
+
+int __init fsl_spi_init(struct spi_board_info *board_infos,
+                       unsigned int num_board_infos,
+                       void (*activate_cs)(u8 cs, u8 polarity),
+                       void (*deactivate_cs)(u8 cs, u8 polarity))
+{
+       u32 sysclk = -1;
+       int ret;
+
+#ifdef CONFIG_QUICC_ENGINE
+       /* SPI controller is either clocked from QE or SoC clock */
+       sysclk = get_brgfreq();
+#endif
+       if (sysclk == -1) {
+               struct device_node *np;
+               const u32 *freq;
+               int size;
+
+               np = of_find_node_by_type(NULL, "soc");
+               if (!np)
+                       return -ENODEV;
+
+               freq = of_get_property(np, "clock-frequency", &size);
+               if (!freq || size != sizeof(*freq) || *freq == 0) {
+                       freq = of_get_property(np, "bus-frequency", &size);
+                       if (!freq || size != sizeof(*freq) || *freq == 0) {
+                               of_node_put(np);
+                               return -ENODEV;
+                       }
+               }
+
+               sysclk = *freq;
+               of_node_put(np);
+       }
+
+       ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
+                              num_board_infos, activate_cs, deactivate_cs);
+       if (!ret)
+               of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
+                                num_board_infos, activate_cs, deactivate_cs);
+
        return spi_register_board_info(board_infos, num_board_infos);
 }
+
+#if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
+static __be32 __iomem *rstcr;
+
+static int __init setup_rstcr(void)
+{
+       struct device_node *np;
+       np = of_find_node_by_name(NULL, "global-utilities");
+       if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
+               const u32 *prop = of_get_property(np, "reg", NULL);
+               if (prop) {
+                       /* map reset control register
+                        * 0xE00B0 is offset of reset control register
+                        */
+                       rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
+                       if (!rstcr)
+                               printk (KERN_EMERG "Error: reset control "
+                                               "register not mapped!\n");
+               }
+       } else
+               printk (KERN_INFO "rstcr compatible register does not exist!\n");
+       if (np)
+               of_node_put(np);
+       return 0;
+}
+
+arch_initcall(setup_rstcr);
+
+void fsl_rstcr_restart(char *cmd)
+{
+       local_irq_disable();
+       if (rstcr)
+               /* set reset control register */
+               out_be32(rstcr, 0x2);   /* HRESET_REQ */
+
+       while (1) ;
+}
+#endif