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>
30 #include <plat/gpio-nomadik.h>
33 #include <mach/setup.h>
34 #include <mach/nand.h>
35 #include <mach/fsmc.h>
39 /* Initial value for SRC control register: all timers use MXTAL/8 source */
40 #define SRC_CR_INIT_MASK 0x00007fff
41 #define SRC_CR_INIT_VAL 0x2aaa8000
43 /* These addresses span 16MB, so use three individual pages */
44 static struct resource nhk8815_nand_resources
[] = {
47 .start
= NAND_IO_ADDR
,
48 .end
= NAND_IO_ADDR
+ 0xfff,
49 .flags
= IORESOURCE_MEM
,
53 .end
= NAND_IO_CMD
+ 0xfff,
54 .flags
= IORESOURCE_MEM
,
57 .start
= NAND_IO_DATA
,
58 .end
= NAND_IO_DATA
+ 0xfff,
59 .flags
= IORESOURCE_MEM
,
63 static int nhk8815_nand_init(void)
65 /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
66 writel(0x0000000E, FSMC_PCR(0));
67 writel(0x000D0A00, FSMC_PMEM(0));
68 writel(0x00100A00, FSMC_PATT(0));
70 /* enable access to the chip select area */
71 writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
77 * These partitions are the same as those used in the 2.6.20 release
78 * shipped by the vendor; the first two partitions are mandated
79 * by the boot ROM, and the bootloader area is somehow oversized...
81 static struct mtd_partition nhk8815_partitions
[] = {
83 .name
= "X-Loader(NAND)",
87 .name
= "MemInit(NAND)",
88 .offset
= MTDPART_OFS_APPEND
,
91 .name
= "BootLoader(NAND)",
92 .offset
= MTDPART_OFS_APPEND
,
95 .name
= "Kernel zImage(NAND)",
96 .offset
= MTDPART_OFS_APPEND
,
99 .name
= "Root Filesystem(NAND)",
100 .offset
= MTDPART_OFS_APPEND
,
103 .name
= "User Filesystem(NAND)",
104 .offset
= MTDPART_OFS_APPEND
,
105 .size
= MTDPART_SIZ_FULL
,
109 static struct nomadik_nand_platform_data nhk8815_nand_data
= {
110 .parts
= nhk8815_partitions
,
111 .nparts
= ARRAY_SIZE(nhk8815_partitions
),
112 .options
= NAND_COPYBACK
| NAND_CACHEPRG
| NAND_NO_PADDING \
113 | NAND_NO_READRDY
| NAND_NO_AUTOINCR
,
114 .init
= nhk8815_nand_init
,
117 static struct platform_device nhk8815_nand_device
= {
118 .name
= "nomadik_nand",
120 .platform_data
= &nhk8815_nand_data
,
122 .resource
= nhk8815_nand_resources
,
123 .num_resources
= ARRAY_SIZE(nhk8815_nand_resources
),
126 /* These are the partitions for the OneNand device, different from above */
127 static struct mtd_partition nhk8815_onenand_partitions
[] = {
129 .name
= "X-Loader(OneNAND)",
133 .name
= "MemInit(OneNAND)",
134 .offset
= MTDPART_OFS_APPEND
,
137 .name
= "BootLoader(OneNAND)",
138 .offset
= MTDPART_OFS_APPEND
,
139 .size
= SZ_2M
-SZ_256K
,
141 .name
= "SysImage(OneNAND)",
142 .offset
= MTDPART_OFS_APPEND
,
145 .name
= "Root Filesystem(OneNAND)",
146 .offset
= MTDPART_OFS_APPEND
,
149 .name
= "User Filesystem(OneNAND)",
150 .offset
= MTDPART_OFS_APPEND
,
151 .size
= MTDPART_SIZ_FULL
,
155 static struct onenand_platform_data nhk8815_onenand_data
= {
156 .parts
= nhk8815_onenand_partitions
,
157 .nr_parts
= ARRAY_SIZE(nhk8815_onenand_partitions
),
160 static struct resource nhk8815_onenand_resource
[] = {
163 .end
= 0x30000000 + SZ_128K
- 1,
164 .flags
= IORESOURCE_MEM
,
168 static struct platform_device nhk8815_onenand_device
= {
169 .name
= "onenand-flash",
172 .platform_data
= &nhk8815_onenand_data
,
174 .resource
= nhk8815_onenand_resource
,
175 .num_resources
= ARRAY_SIZE(nhk8815_onenand_resource
),
178 static void __init
nhk8815_onenand_init(void)
180 #ifdef CONFIG_MTD_ONENAND
181 /* Set up SMCS0 for OneNand */
182 writel(0x000030db, FSMC_BCR(0));
183 writel(0x02100551, FSMC_BTR(0));
187 #define __MEM_4K_RESOURCE(x) \
188 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
190 static struct amba_device uart0_device
= {
191 .dev
= { .init_name
= "uart0" },
192 __MEM_4K_RESOURCE(NOMADIK_UART0_BASE
),
193 .irq
= {IRQ_UART0
, NO_IRQ
},
196 static struct amba_device uart1_device
= {
197 .dev
= { .init_name
= "uart1" },
198 __MEM_4K_RESOURCE(NOMADIK_UART1_BASE
),
199 .irq
= {IRQ_UART1
, NO_IRQ
},
202 static struct amba_device
*amba_devs
[] __initdata
= {
207 static struct resource nhk8815_eth_resources
[] = {
209 .name
= "smc91x-regs",
210 .start
= 0x34000000 + 0x300,
211 .end
= 0x34000000 + SZ_64K
- 1,
212 .flags
= IORESOURCE_MEM
,
214 .start
= NOMADIK_GPIO_TO_IRQ(115),
215 .end
= NOMADIK_GPIO_TO_IRQ(115),
216 .flags
= IORESOURCE_IRQ
| IRQF_TRIGGER_RISING
,
220 static struct platform_device nhk8815_eth_device
= {
222 .resource
= nhk8815_eth_resources
,
223 .num_resources
= ARRAY_SIZE(nhk8815_eth_resources
),
226 static int __init
nhk8815_eth_init(void)
228 int gpio_nr
= 115; /* hardwired in the board */
231 err
= gpio_request(gpio_nr
, "eth_irq");
232 if (!err
) err
= nmk_gpio_set_mode(gpio_nr
, NMK_GPIO_ALT_GPIO
);
233 if (!err
) err
= gpio_direction_input(gpio_nr
);
235 pr_err("Error %i in %s\n", err
, __func__
);
238 device_initcall(nhk8815_eth_init
);
240 static struct platform_device
*nhk8815_platform_devices
[] __initdata
= {
241 &nhk8815_nand_device
,
242 &nhk8815_onenand_device
,
244 /* will add more devices */
247 static void __init
nomadik_timer_init(void)
251 /* Configure timer sources in "system reset controller" ctrl reg */
252 src_cr
= readl(io_p2v(NOMADIK_SRC_BASE
));
253 src_cr
&= SRC_CR_INIT_MASK
;
254 src_cr
|= SRC_CR_INIT_VAL
;
255 writel(src_cr
, io_p2v(NOMADIK_SRC_BASE
));
257 /* Save global pointer to mtu, used by platform timer code */
258 mtu_base
= io_p2v(NOMADIK_MTU0_BASE
);
263 static struct sys_timer nomadik_timer
= {
264 .init
= nomadik_timer_init
,
267 static void __init
nhk8815_platform_init(void)
271 cpu8815_platform_init();
272 nhk8815_onenand_init();
273 platform_add_devices(nhk8815_platform_devices
,
274 ARRAY_SIZE(nhk8815_platform_devices
));
276 for (i
= 0; i
< ARRAY_SIZE(amba_devs
); i
++)
277 amba_device_register(amba_devs
[i
], &iomem_resource
);
280 MACHINE_START(NOMADIK
, "NHK8815")
281 /* Maintainer: ST MicroElectronics */
282 .atag_offset
= 0x100,
283 .map_io
= cpu8815_map_io
,
284 .init_irq
= cpu8815_init_irq
,
285 .timer
= &nomadik_timer
,
286 .init_machine
= nhk8815_platform_init
,