2 * arch/arm/mach-orion5x/db88f5281-setup.c
4 * Marvell Orion-2 Development Board Setup
6 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/pci.h>
17 #include <linux/irq.h>
18 #include <linux/mtd/physmap.h>
19 #include <linux/mtd/nand.h>
20 #include <linux/timer.h>
21 #include <linux/mv643xx_eth.h>
22 #include <linux/i2c.h>
23 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/pci.h>
27 #include <asm/arch/orion5x.h>
28 #include <asm/plat-orion/orion_nand.h>
31 /*****************************************************************************
32 * DB-88F5281 on board devices
33 ****************************************************************************/
36 * 512K NOR flash Device bus boot chip select
39 #define DB88F5281_NOR_BOOT_BASE 0xf4000000
40 #define DB88F5281_NOR_BOOT_SIZE SZ_512K
43 * 7-Segment on Device bus chip select 0
46 #define DB88F5281_7SEG_BASE 0xfa000000
47 #define DB88F5281_7SEG_SIZE SZ_1K
50 * 32M NOR flash on Device bus chip select 1
53 #define DB88F5281_NOR_BASE 0xfc000000
54 #define DB88F5281_NOR_SIZE SZ_32M
57 * 32M NAND flash on Device bus chip select 2
60 #define DB88F5281_NAND_BASE 0xfa800000
61 #define DB88F5281_NAND_SIZE SZ_1K
67 #define DB88F5281_PCI_SLOT0_OFFS 7
68 #define DB88F5281_PCI_SLOT0_IRQ_PIN 12
69 #define DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN 13
71 /*****************************************************************************
72 * 512M NOR Flash on Device bus Boot CS
73 ****************************************************************************/
75 static struct physmap_flash_data db88f5281_boot_flash_data = {
76 .width = 1, /* 8 bit bus width */
79 static struct resource db88f5281_boot_flash_resource = {
80 .flags = IORESOURCE_MEM,
81 .start = DB88F5281_NOR_BOOT_BASE,
82 .end = DB88F5281_NOR_BOOT_BASE + DB88F5281_NOR_BOOT_SIZE - 1,
85 static struct platform_device db88f5281_boot_flash = {
86 .name = "physmap-flash",
89 .platform_data = &db88f5281_boot_flash_data,
92 .resource = &db88f5281_boot_flash_resource,
95 /*****************************************************************************
96 * 32M NOR Flash on Device bus CS1
97 ****************************************************************************/
99 static struct physmap_flash_data db88f5281_nor_flash_data = {
100 .width = 4, /* 32 bit bus width */
103 static struct resource db88f5281_nor_flash_resource = {
104 .flags = IORESOURCE_MEM,
105 .start = DB88F5281_NOR_BASE,
106 .end = DB88F5281_NOR_BASE + DB88F5281_NOR_SIZE - 1,
109 static struct platform_device db88f5281_nor_flash = {
110 .name = "physmap-flash",
113 .platform_data = &db88f5281_nor_flash_data,
116 .resource = &db88f5281_nor_flash_resource,
119 /*****************************************************************************
120 * 32M NAND Flash on Device bus CS2
121 ****************************************************************************/
123 static struct mtd_partition db88f5281_nand_parts[] = {
132 .size = (SZ_16M - SZ_2M),
141 .offset = (SZ_16M + SZ_8M),
146 static struct resource db88f5281_nand_resource = {
147 .flags = IORESOURCE_MEM,
148 .start = DB88F5281_NAND_BASE,
149 .end = DB88F5281_NAND_BASE + DB88F5281_NAND_SIZE - 1,
152 static struct orion_nand_data db88f5281_nand_data = {
153 .parts = db88f5281_nand_parts,
154 .nr_parts = ARRAY_SIZE(db88f5281_nand_parts),
160 static struct platform_device db88f5281_nand_flash = {
161 .name = "orion_nand",
164 .platform_data = &db88f5281_nand_data,
166 .resource = &db88f5281_nand_resource,
170 /*****************************************************************************
171 * 7-Segment on Device bus CS0
172 * Dummy counter every 2 sec
173 ****************************************************************************/
175 static void __iomem *db88f5281_7seg;
176 static struct timer_list db88f5281_timer;
178 static void db88f5281_7seg_event(unsigned long data)
180 static int count = 0;
181 writel(0, db88f5281_7seg + (count << 4));
182 count = (count + 1) & 7;
183 mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
186 static int __init db88f5281_7seg_init(void)
188 if (machine_is_db88f5281()) {
189 db88f5281_7seg = ioremap(DB88F5281_7SEG_BASE,
190 DB88F5281_7SEG_SIZE);
191 if (!db88f5281_7seg) {
192 printk(KERN_ERR "Failed to ioremap db88f5281_7seg\n");
195 setup_timer(&db88f5281_timer, db88f5281_7seg_event, 0);
196 mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
202 __initcall(db88f5281_7seg_init);
204 /*****************************************************************************
206 ****************************************************************************/
208 void __init db88f5281_pci_preinit(void)
213 * Configure PCI GPIO IRQ pins
215 pin = DB88F5281_PCI_SLOT0_IRQ_PIN;
216 if (gpio_request(pin, "PCI Int1") == 0) {
217 if (gpio_direction_input(pin) == 0) {
218 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
220 printk(KERN_ERR "db88f5281_pci_preinit faield to "
221 "set_irq_type pin %d\n", pin);
225 printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
228 pin = DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN;
229 if (gpio_request(pin, "PCI Int2") == 0) {
230 if (gpio_direction_input(pin) == 0) {
231 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
233 printk(KERN_ERR "db88f5281_pci_preinit faield "
234 "to set_irq_type pin %d\n", pin);
238 printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
242 static int __init db88f5281_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
247 * Check for devices with hard-wired IRQs.
249 irq = orion5x_pci_map_irq(dev, slot, pin);
254 * PCI IRQs are connected via GPIOs.
256 switch (slot - DB88F5281_PCI_SLOT0_OFFS) {
258 return gpio_to_irq(DB88F5281_PCI_SLOT0_IRQ_PIN);
261 return gpio_to_irq(DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN);
267 static struct hw_pci db88f5281_pci __initdata = {
269 .preinit = db88f5281_pci_preinit,
270 .swizzle = pci_std_swizzle,
271 .setup = orion5x_pci_sys_setup,
272 .scan = orion5x_pci_sys_scan_bus,
273 .map_irq = db88f5281_pci_map_irq,
276 static int __init db88f5281_pci_init(void)
278 if (machine_is_db88f5281())
279 pci_common_init(&db88f5281_pci);
284 subsys_initcall(db88f5281_pci_init);
286 /*****************************************************************************
288 ****************************************************************************/
289 static struct mv643xx_eth_platform_data db88f5281_eth_data = {
294 /*****************************************************************************
295 * RTC DS1339 on I2C bus
296 ****************************************************************************/
297 static struct i2c_board_info __initdata db88f5281_i2c_rtc = {
298 I2C_BOARD_INFO("ds1339", 0x68),
301 /*****************************************************************************
303 ****************************************************************************/
305 static struct platform_device *db88f5281_devs[] __initdata = {
306 &db88f5281_boot_flash,
307 &db88f5281_nor_flash,
308 &db88f5281_nand_flash,
311 static void __init db88f5281_init(void)
314 * Basic Orion setup. Need to be called early.
319 * Setup the CPU address decode windows for our on-board devices
321 orion5x_setup_dev_boot_win(DB88F5281_NOR_BOOT_BASE,
322 DB88F5281_NOR_BOOT_SIZE);
323 orion5x_setup_dev0_win(DB88F5281_7SEG_BASE, DB88F5281_7SEG_SIZE);
324 orion5x_setup_dev1_win(DB88F5281_NOR_BASE, DB88F5281_NOR_SIZE);
325 orion5x_setup_dev2_win(DB88F5281_NAND_BASE, DB88F5281_NAND_SIZE);
328 * Setup Multiplexing Pins:
329 * MPP0: GPIO (USB Over Current) MPP1: GPIO (USB Vbat input)
330 * MPP2: PCI_REQn[2] MPP3: PCI_GNTn[2]
331 * MPP4: PCI_REQn[3] MPP5: PCI_GNTn[3]
332 * MPP6: GPIO (JP0, CON17.2) MPP7: GPIO (JP1, CON17.1)
333 * MPP8: GPIO (JP2, CON11.2) MPP9: GPIO (JP3, CON11.3)
334 * MPP10: GPIO (RTC int) MPP11: GPIO (Baud Rate Generator)
335 * MPP12: GPIO (PCI int 1) MPP13: GPIO (PCI int 2)
336 * MPP14: NAND_REn[2] MPP15: NAND_WEn[2]
337 * MPP16: UART1_RX MPP17: UART1_TX
338 * MPP18: UART1_CTS MPP19: UART1_RTS
339 * MPP-DEV: DEV_D[16:31]
341 orion5x_write(MPP_0_7_CTRL, 0x00222203);
342 orion5x_write(MPP_8_15_CTRL, 0x44000000);
343 orion5x_write(MPP_16_19_CTRL, 0);
344 orion5x_write(MPP_DEV_CTRL, 0);
346 orion5x_gpio_set_valid_pins(0x00003fc3);
348 platform_add_devices(db88f5281_devs, ARRAY_SIZE(db88f5281_devs));
349 i2c_register_board_info(0, &db88f5281_i2c_rtc, 1);
350 orion5x_eth_init(&db88f5281_eth_data);
353 MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
354 /* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
355 .phys_io = ORION5X_REGS_PHYS_BASE,
356 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xfffc,
357 .boot_params = 0x00000100,
358 .init_machine = db88f5281_init,
359 .map_io = orion5x_map_io,
360 .init_irq = orion5x_init_irq,
361 .timer = &orion5x_timer,