2 * linux/arch/arm/mach-nomadik/board-8815nhk.c
4 * Copyright (C) STMicroelectronics
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2, as
8 * published by the Free Software Foundation.
10 * NHK15 board specifc driver definition
12 #include <linux/types.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/amba/bus.h>
17 #include <linux/interrupt.h>
18 #include <linux/gpio.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/nand.h>
21 #include <linux/mtd/onenand.h>
22 #include <linux/mtd/partitions.h>
24 #include <asm/sizes.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/irq.h>
28 #include <asm/mach/flash.h>
32 #include <mach/setup.h>
33 #include <mach/nand.h>
34 #include <mach/fsmc.h>
36 /* Initial value for SRC control register: all timers use MXTAL/8 source */
37 #define SRC_CR_INIT_MASK 0x00007fff
38 #define SRC_CR_INIT_VAL 0x2aaa8000
40 /* These addresses span 16MB, so use three individual pages */
41 static struct resource nhk8815_nand_resources[] = {
44 .start = NAND_IO_ADDR,
45 .end = NAND_IO_ADDR + 0xfff,
46 .flags = IORESOURCE_MEM,
50 .end = NAND_IO_CMD + 0xfff,
51 .flags = IORESOURCE_MEM,
54 .start = NAND_IO_DATA,
55 .end = NAND_IO_DATA + 0xfff,
56 .flags = IORESOURCE_MEM,
60 static int nhk8815_nand_init(void)
62 /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
63 writel(0x0000000E, FSMC_PCR(0));
64 writel(0x000D0A00, FSMC_PMEM(0));
65 writel(0x00100A00, FSMC_PATT(0));
67 /* enable access to the chip select area */
68 writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
74 * These partitions are the same as those used in the 2.6.20 release
75 * shipped by the vendor; the first two partitions are mandated
76 * by the boot ROM, and the bootloader area is somehow oversized...
78 static struct mtd_partition nhk8815_partitions[] = {
80 .name = "X-Loader(NAND)",
84 .name = "MemInit(NAND)",
85 .offset = MTDPART_OFS_APPEND,
88 .name = "BootLoader(NAND)",
89 .offset = MTDPART_OFS_APPEND,
92 .name = "Kernel zImage(NAND)",
93 .offset = MTDPART_OFS_APPEND,
96 .name = "Root Filesystem(NAND)",
97 .offset = MTDPART_OFS_APPEND,
100 .name = "User Filesystem(NAND)",
101 .offset = MTDPART_OFS_APPEND,
102 .size = MTDPART_SIZ_FULL,
106 static struct nomadik_nand_platform_data nhk8815_nand_data = {
107 .parts = nhk8815_partitions,
108 .nparts = ARRAY_SIZE(nhk8815_partitions),
109 .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \
110 | NAND_NO_READRDY | NAND_NO_AUTOINCR,
111 .init = nhk8815_nand_init,
114 static struct platform_device nhk8815_nand_device = {
115 .name = "nomadik_nand",
117 .platform_data = &nhk8815_nand_data,
119 .resource = nhk8815_nand_resources,
120 .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
123 /* These are the partitions for the OneNand device, different from above */
124 static struct mtd_partition nhk8815_onenand_partitions[] = {
126 .name = "X-Loader(OneNAND)",
130 .name = "MemInit(OneNAND)",
131 .offset = MTDPART_OFS_APPEND,
134 .name = "BootLoader(OneNAND)",
135 .offset = MTDPART_OFS_APPEND,
136 .size = SZ_2M-SZ_256K,
138 .name = "SysImage(OneNAND)",
139 .offset = MTDPART_OFS_APPEND,
142 .name = "Root Filesystem(OneNAND)",
143 .offset = MTDPART_OFS_APPEND,
146 .name = "User Filesystem(OneNAND)",
147 .offset = MTDPART_OFS_APPEND,
148 .size = MTDPART_SIZ_FULL,
152 static struct onenand_platform_data nhk8815_onenand_data = {
153 .parts = nhk8815_onenand_partitions,
154 .nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
157 static struct resource nhk8815_onenand_resource[] = {
160 .end = 0x30000000 + SZ_128K - 1,
161 .flags = IORESOURCE_MEM,
165 static struct platform_device nhk8815_onenand_device = {
166 .name = "onenand-flash",
169 .platform_data = &nhk8815_onenand_data,
171 .resource = nhk8815_onenand_resource,
172 .num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
175 static void __init nhk8815_onenand_init(void)
177 #ifdef CONFIG_MTD_ONENAND
178 /* Set up SMCS0 for OneNand */
179 writel(0x000030db, FSMC_BCR(0));
180 writel(0x02100551, FSMC_BTR(0));
184 #define __MEM_4K_RESOURCE(x) \
185 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
187 static struct amba_device uart0_device = {
188 .dev = { .init_name = "uart0" },
189 __MEM_4K_RESOURCE(NOMADIK_UART0_BASE),
190 .irq = {IRQ_UART0, NO_IRQ},
193 static struct amba_device uart1_device = {
194 .dev = { .init_name = "uart1" },
195 __MEM_4K_RESOURCE(NOMADIK_UART1_BASE),
196 .irq = {IRQ_UART1, NO_IRQ},
199 static struct amba_device *amba_devs[] __initdata = {
204 static struct resource nhk8815_eth_resources[] = {
206 .name = "smc91x-regs",
207 .start = 0x34000000 + 0x300,
208 .end = 0x34000000 + SZ_64K - 1,
209 .flags = IORESOURCE_MEM,
211 .start = NOMADIK_GPIO_TO_IRQ(115),
212 .end = NOMADIK_GPIO_TO_IRQ(115),
213 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
217 static struct platform_device nhk8815_eth_device = {
219 .resource = nhk8815_eth_resources,
220 .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
223 static int __init nhk8815_eth_init(void)
225 int gpio_nr = 115; /* hardwired in the board */
228 err = gpio_request(gpio_nr, "eth_irq");
229 if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
230 if (!err) err = gpio_direction_input(gpio_nr);
232 pr_err("Error %i in %s\n", err, __func__);
235 device_initcall(nhk8815_eth_init);
237 static struct platform_device *nhk8815_platform_devices[] __initdata = {
238 &nhk8815_nand_device,
239 &nhk8815_onenand_device,
241 /* will add more devices */
244 static void __init nomadik_timer_init(void)
248 /* Configure timer sources in "system reset controller" ctrl reg */
249 src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
250 src_cr &= SRC_CR_INIT_MASK;
251 src_cr |= SRC_CR_INIT_VAL;
252 writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
254 /* Save global pointer to mtu, used by platform timer code */
255 mtu_base = io_p2v(NOMADIK_MTU0_BASE);
260 static struct sys_timer nomadik_timer = {
261 .init = nomadik_timer_init,
264 static void __init nhk8815_platform_init(void)
268 cpu8815_platform_init();
269 nhk8815_onenand_init();
270 platform_add_devices(nhk8815_platform_devices,
271 ARRAY_SIZE(nhk8815_platform_devices));
273 for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
274 amba_device_register(amba_devs[i], &iomem_resource);
277 MACHINE_START(NOMADIK, "NHK8815")
278 /* Maintainer: ST MicroElectronics */
279 .phys_io = NOMADIK_UART0_BASE,
280 .io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc,
281 .boot_params = 0x100,
282 .map_io = cpu8815_map_io,
283 .init_irq = cpu8815_init_irq,
284 .timer = &nomadik_timer,
285 .init_machine = nhk8815_platform_init,