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/hardware/vic.h>
25 #include <asm/sizes.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/irq.h>
29 #include <asm/mach/flash.h>
30 #include <asm/mach/time.h>
32 #include <plat/gpio-nomadik.h>
35 #include <mach/nand.h>
36 #include <mach/fsmc.h>
40 /* Initial value for SRC control register: all timers use MXTAL/8 source */
41 #define SRC_CR_INIT_MASK 0x00007fff
42 #define SRC_CR_INIT_VAL 0x2aaa8000
44 /* These addresses span 16MB, so use three individual pages */
45 static struct resource nhk8815_nand_resources[] = {
48 .start = NAND_IO_ADDR,
49 .end = NAND_IO_ADDR + 0xfff,
50 .flags = IORESOURCE_MEM,
54 .end = NAND_IO_CMD + 0xfff,
55 .flags = IORESOURCE_MEM,
58 .start = NAND_IO_DATA,
59 .end = NAND_IO_DATA + 0xfff,
60 .flags = IORESOURCE_MEM,
64 static int nhk8815_nand_init(void)
66 /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
67 writel(0x0000000E, FSMC_PCR(0));
68 writel(0x000D0A00, FSMC_PMEM(0));
69 writel(0x00100A00, FSMC_PATT(0));
71 /* enable access to the chip select area */
72 writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
78 * These partitions are the same as those used in the 2.6.20 release
79 * shipped by the vendor; the first two partitions are mandated
80 * by the boot ROM, and the bootloader area is somehow oversized...
82 static struct mtd_partition nhk8815_partitions[] = {
84 .name = "X-Loader(NAND)",
88 .name = "MemInit(NAND)",
89 .offset = MTDPART_OFS_APPEND,
92 .name = "BootLoader(NAND)",
93 .offset = MTDPART_OFS_APPEND,
96 .name = "Kernel zImage(NAND)",
97 .offset = MTDPART_OFS_APPEND,
100 .name = "Root Filesystem(NAND)",
101 .offset = MTDPART_OFS_APPEND,
104 .name = "User Filesystem(NAND)",
105 .offset = MTDPART_OFS_APPEND,
106 .size = MTDPART_SIZ_FULL,
110 static struct nomadik_nand_platform_data nhk8815_nand_data = {
111 .parts = nhk8815_partitions,
112 .nparts = ARRAY_SIZE(nhk8815_partitions),
113 .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \
114 | NAND_NO_READRDY | NAND_NO_AUTOINCR,
115 .init = nhk8815_nand_init,
118 static struct platform_device nhk8815_nand_device = {
119 .name = "nomadik_nand",
121 .platform_data = &nhk8815_nand_data,
123 .resource = nhk8815_nand_resources,
124 .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
127 /* These are the partitions for the OneNand device, different from above */
128 static struct mtd_partition nhk8815_onenand_partitions[] = {
130 .name = "X-Loader(OneNAND)",
134 .name = "MemInit(OneNAND)",
135 .offset = MTDPART_OFS_APPEND,
138 .name = "BootLoader(OneNAND)",
139 .offset = MTDPART_OFS_APPEND,
140 .size = SZ_2M-SZ_256K,
142 .name = "SysImage(OneNAND)",
143 .offset = MTDPART_OFS_APPEND,
146 .name = "Root Filesystem(OneNAND)",
147 .offset = MTDPART_OFS_APPEND,
150 .name = "User Filesystem(OneNAND)",
151 .offset = MTDPART_OFS_APPEND,
152 .size = MTDPART_SIZ_FULL,
156 static struct onenand_platform_data nhk8815_onenand_data = {
157 .parts = nhk8815_onenand_partitions,
158 .nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
161 static struct resource nhk8815_onenand_resource[] = {
164 .end = 0x30000000 + SZ_128K - 1,
165 .flags = IORESOURCE_MEM,
169 static struct platform_device nhk8815_onenand_device = {
170 .name = "onenand-flash",
173 .platform_data = &nhk8815_onenand_data,
175 .resource = nhk8815_onenand_resource,
176 .num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
179 static void __init nhk8815_onenand_init(void)
181 #ifdef CONFIG_MTD_ONENAND
182 /* Set up SMCS0 for OneNand */
183 writel(0x000030db, FSMC_BCR(0));
184 writel(0x02100551, FSMC_BTR(0));
188 static AMBA_APB_DEVICE(uart0, "uart0", 0, NOMADIK_UART0_BASE,
189 { IRQ_UART0 }, NULL);
191 static AMBA_APB_DEVICE(uart1, "uart1", 0, NOMADIK_UART1_BASE,
192 { IRQ_UART1 }, NULL);
194 static struct amba_device *amba_devs[] __initdata = {
199 static struct resource nhk8815_eth_resources[] = {
201 .name = "smc91x-regs",
202 .start = 0x34000000 + 0x300,
203 .end = 0x34000000 + SZ_64K - 1,
204 .flags = IORESOURCE_MEM,
206 .start = NOMADIK_GPIO_TO_IRQ(115),
207 .end = NOMADIK_GPIO_TO_IRQ(115),
208 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
212 static struct platform_device nhk8815_eth_device = {
214 .resource = nhk8815_eth_resources,
215 .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
218 static int __init nhk8815_eth_init(void)
220 int gpio_nr = 115; /* hardwired in the board */
223 err = gpio_request(gpio_nr, "eth_irq");
224 if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
225 if (!err) err = gpio_direction_input(gpio_nr);
227 pr_err("Error %i in %s\n", err, __func__);
230 device_initcall(nhk8815_eth_init);
232 static struct platform_device *nhk8815_platform_devices[] __initdata = {
233 &nhk8815_nand_device,
234 &nhk8815_onenand_device,
236 /* will add more devices */
239 static void __init nomadik_timer_init(void)
243 /* Configure timer sources in "system reset controller" ctrl reg */
244 src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
245 src_cr &= SRC_CR_INIT_MASK;
246 src_cr |= SRC_CR_INIT_VAL;
247 writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
249 nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
252 static struct sys_timer nomadik_timer = {
253 .init = nomadik_timer_init,
256 static void __init nhk8815_platform_init(void)
260 cpu8815_platform_init();
261 nhk8815_onenand_init();
262 platform_add_devices(nhk8815_platform_devices,
263 ARRAY_SIZE(nhk8815_platform_devices));
265 for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
266 amba_device_register(amba_devs[i], &iomem_resource);
269 MACHINE_START(NOMADIK, "NHK8815")
270 /* Maintainer: ST MicroElectronics */
271 .atag_offset = 0x100,
272 .map_io = cpu8815_map_io,
273 .init_irq = cpu8815_init_irq,
274 .handle_irq = vic_handle_irq,
275 .timer = &nomadik_timer,
276 .init_machine = nhk8815_platform_init,
277 .restart = cpu8815_restart,