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28ad94ec AR |
1 | /* |
2 | * linux/arch/arm/mach-nomadik/board-8815nhk.c | |
3 | * | |
4 | * Copyright (C) STMicroelectronics | |
5 | * | |
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. | |
9 | * | |
10 | * NHK15 board specifc driver definition | |
11 | */ | |
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> | |
725b1f9d AR |
17 | #include <linux/interrupt.h> |
18 | #include <linux/gpio.h> | |
63234717 AR |
19 | #include <linux/mtd/mtd.h> |
20 | #include <linux/mtd/nand.h> | |
c1558b55 | 21 | #include <linux/mtd/onenand.h> |
63234717 AR |
22 | #include <linux/mtd/partitions.h> |
23 | #include <linux/io.h> | |
24 | #include <asm/sizes.h> | |
28ad94ec AR |
25 | #include <asm/mach-types.h> |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/irq.h> | |
8b85e7cb | 28 | #include <asm/mach/flash.h> |
59b559d7 SK |
29 | |
30 | #include <plat/mtu.h> | |
31 | ||
28ad94ec | 32 | #include <mach/setup.h> |
63234717 AR |
33 | #include <mach/nand.h> |
34 | #include <mach/fsmc.h> | |
28ad94ec AR |
35 | #include "clock.h" |
36 | ||
59b559d7 SK |
37 | /* Initial value for SRC control register: all timers use MXTAL/8 source */ |
38 | #define SRC_CR_INIT_MASK 0x00007fff | |
39 | #define SRC_CR_INIT_VAL 0x2aaa8000 | |
40 | ||
3ad2f3fb | 41 | /* These addresses span 16MB, so use three individual pages */ |
63234717 AR |
42 | static struct resource nhk8815_nand_resources[] = { |
43 | { | |
44 | .name = "nand_addr", | |
45 | .start = NAND_IO_ADDR, | |
46 | .end = NAND_IO_ADDR + 0xfff, | |
47 | .flags = IORESOURCE_MEM, | |
48 | }, { | |
49 | .name = "nand_cmd", | |
50 | .start = NAND_IO_CMD, | |
51 | .end = NAND_IO_CMD + 0xfff, | |
52 | .flags = IORESOURCE_MEM, | |
53 | }, { | |
54 | .name = "nand_data", | |
55 | .start = NAND_IO_DATA, | |
56 | .end = NAND_IO_DATA + 0xfff, | |
57 | .flags = IORESOURCE_MEM, | |
58 | } | |
59 | }; | |
60 | ||
61 | static int nhk8815_nand_init(void) | |
62 | { | |
63 | /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */ | |
64 | writel(0x0000000E, FSMC_PCR(0)); | |
65 | writel(0x000D0A00, FSMC_PMEM(0)); | |
66 | writel(0x00100A00, FSMC_PATT(0)); | |
67 | ||
68 | /* enable access to the chip select area */ | |
69 | writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0)); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | /* | |
75 | * These partitions are the same as those used in the 2.6.20 release | |
76 | * shipped by the vendor; the first two partitions are mandated | |
77 | * by the boot ROM, and the bootloader area is somehow oversized... | |
78 | */ | |
79 | static struct mtd_partition nhk8815_partitions[] = { | |
80 | { | |
81 | .name = "X-Loader(NAND)", | |
82 | .offset = 0, | |
83 | .size = SZ_256K, | |
84 | }, { | |
85 | .name = "MemInit(NAND)", | |
86 | .offset = MTDPART_OFS_APPEND, | |
87 | .size = SZ_256K, | |
88 | }, { | |
89 | .name = "BootLoader(NAND)", | |
90 | .offset = MTDPART_OFS_APPEND, | |
91 | .size = SZ_2M, | |
92 | }, { | |
93 | .name = "Kernel zImage(NAND)", | |
94 | .offset = MTDPART_OFS_APPEND, | |
95 | .size = 3 * SZ_1M, | |
96 | }, { | |
97 | .name = "Root Filesystem(NAND)", | |
98 | .offset = MTDPART_OFS_APPEND, | |
99 | .size = 22 * SZ_1M, | |
100 | }, { | |
101 | .name = "User Filesystem(NAND)", | |
102 | .offset = MTDPART_OFS_APPEND, | |
103 | .size = MTDPART_SIZ_FULL, | |
104 | } | |
105 | }; | |
106 | ||
107 | static struct nomadik_nand_platform_data nhk8815_nand_data = { | |
108 | .parts = nhk8815_partitions, | |
109 | .nparts = ARRAY_SIZE(nhk8815_partitions), | |
110 | .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \ | |
111 | | NAND_NO_READRDY | NAND_NO_AUTOINCR, | |
112 | .init = nhk8815_nand_init, | |
113 | }; | |
114 | ||
115 | static struct platform_device nhk8815_nand_device = { | |
116 | .name = "nomadik_nand", | |
117 | .dev = { | |
118 | .platform_data = &nhk8815_nand_data, | |
119 | }, | |
120 | .resource = nhk8815_nand_resources, | |
121 | .num_resources = ARRAY_SIZE(nhk8815_nand_resources), | |
122 | }; | |
123 | ||
8b85e7cb AR |
124 | /* These are the partitions for the OneNand device, different from above */ |
125 | static struct mtd_partition nhk8815_onenand_partitions[] = { | |
126 | { | |
127 | .name = "X-Loader(OneNAND)", | |
128 | .offset = 0, | |
129 | .size = SZ_256K, | |
130 | }, { | |
131 | .name = "MemInit(OneNAND)", | |
132 | .offset = MTDPART_OFS_APPEND, | |
133 | .size = SZ_256K, | |
134 | }, { | |
135 | .name = "BootLoader(OneNAND)", | |
136 | .offset = MTDPART_OFS_APPEND, | |
137 | .size = SZ_2M-SZ_256K, | |
138 | }, { | |
139 | .name = "SysImage(OneNAND)", | |
140 | .offset = MTDPART_OFS_APPEND, | |
141 | .size = 4 * SZ_1M, | |
142 | }, { | |
143 | .name = "Root Filesystem(OneNAND)", | |
144 | .offset = MTDPART_OFS_APPEND, | |
145 | .size = 22 * SZ_1M, | |
146 | }, { | |
147 | .name = "User Filesystem(OneNAND)", | |
148 | .offset = MTDPART_OFS_APPEND, | |
149 | .size = MTDPART_SIZ_FULL, | |
150 | } | |
151 | }; | |
152 | ||
c1558b55 | 153 | static struct onenand_platform_data nhk8815_onenand_data = { |
8b85e7cb AR |
154 | .parts = nhk8815_onenand_partitions, |
155 | .nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions), | |
156 | }; | |
157 | ||
158 | static struct resource nhk8815_onenand_resource[] = { | |
159 | { | |
160 | .start = 0x30000000, | |
161 | .end = 0x30000000 + SZ_128K - 1, | |
162 | .flags = IORESOURCE_MEM, | |
163 | }, | |
164 | }; | |
165 | ||
166 | static struct platform_device nhk8815_onenand_device = { | |
c1558b55 | 167 | .name = "onenand-flash", |
8b85e7cb AR |
168 | .id = -1, |
169 | .dev = { | |
170 | .platform_data = &nhk8815_onenand_data, | |
171 | }, | |
172 | .resource = nhk8815_onenand_resource, | |
173 | .num_resources = ARRAY_SIZE(nhk8815_onenand_resource), | |
174 | }; | |
175 | ||
176 | static void __init nhk8815_onenand_init(void) | |
177 | { | |
c1558b55 | 178 | #ifdef CONFIG_MTD_ONENAND |
8b85e7cb | 179 | /* Set up SMCS0 for OneNand */ |
c1558b55 AR |
180 | writel(0x000030db, FSMC_BCR(0)); |
181 | writel(0x02100551, FSMC_BTR(0)); | |
8b85e7cb AR |
182 | #endif |
183 | } | |
63234717 | 184 | |
28ad94ec AR |
185 | #define __MEM_4K_RESOURCE(x) \ |
186 | .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} | |
187 | ||
188 | static struct amba_device uart0_device = { | |
189 | .dev = { .init_name = "uart0" }, | |
190 | __MEM_4K_RESOURCE(NOMADIK_UART0_BASE), | |
191 | .irq = {IRQ_UART0, NO_IRQ}, | |
192 | }; | |
193 | ||
194 | static struct amba_device uart1_device = { | |
195 | .dev = { .init_name = "uart1" }, | |
196 | __MEM_4K_RESOURCE(NOMADIK_UART1_BASE), | |
197 | .irq = {IRQ_UART1, NO_IRQ}, | |
198 | }; | |
199 | ||
200 | static struct amba_device *amba_devs[] __initdata = { | |
201 | &uart0_device, | |
202 | &uart1_device, | |
203 | }; | |
204 | ||
205 | /* We have a fixed clock alone, by now */ | |
206 | static struct clk nhk8815_clk_48 = { | |
207 | .rate = 48*1000*1000, | |
208 | }; | |
209 | ||
725b1f9d AR |
210 | static struct resource nhk8815_eth_resources[] = { |
211 | { | |
212 | .name = "smc91x-regs", | |
213 | .start = 0x34000000 + 0x300, | |
214 | .end = 0x34000000 + SZ_64K - 1, | |
215 | .flags = IORESOURCE_MEM, | |
216 | }, { | |
217 | .start = NOMADIK_GPIO_TO_IRQ(115), | |
218 | .end = NOMADIK_GPIO_TO_IRQ(115), | |
219 | .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING, | |
220 | } | |
221 | }; | |
222 | ||
223 | static struct platform_device nhk8815_eth_device = { | |
224 | .name = "smc91x", | |
225 | .resource = nhk8815_eth_resources, | |
226 | .num_resources = ARRAY_SIZE(nhk8815_eth_resources), | |
227 | }; | |
228 | ||
229 | static int __init nhk8815_eth_init(void) | |
230 | { | |
231 | int gpio_nr = 115; /* hardwired in the board */ | |
232 | int err; | |
233 | ||
234 | err = gpio_request(gpio_nr, "eth_irq"); | |
235 | if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO); | |
236 | if (!err) err = gpio_direction_input(gpio_nr); | |
237 | if (err) | |
238 | pr_err("Error %i in %s\n", err, __func__); | |
239 | return err; | |
240 | } | |
241 | device_initcall(nhk8815_eth_init); | |
242 | ||
28ad94ec | 243 | static struct platform_device *nhk8815_platform_devices[] __initdata = { |
63234717 | 244 | &nhk8815_nand_device, |
8b85e7cb | 245 | &nhk8815_onenand_device, |
725b1f9d AR |
246 | &nhk8815_eth_device, |
247 | /* will add more devices */ | |
28ad94ec AR |
248 | }; |
249 | ||
59b559d7 SK |
250 | static void __init nomadik_timer_init(void) |
251 | { | |
252 | u32 src_cr; | |
253 | ||
254 | /* Configure timer sources in "system reset controller" ctrl reg */ | |
255 | src_cr = readl(io_p2v(NOMADIK_SRC_BASE)); | |
256 | src_cr &= SRC_CR_INIT_MASK; | |
257 | src_cr |= SRC_CR_INIT_VAL; | |
258 | writel(src_cr, io_p2v(NOMADIK_SRC_BASE)); | |
259 | ||
260 | /* Save global pointer to mtu, used by platform timer code */ | |
261 | mtu_base = io_p2v(NOMADIK_MTU0_BASE); | |
262 | ||
263 | nmdk_timer_init(); | |
264 | } | |
265 | ||
266 | static struct sys_timer nomadik_timer = { | |
267 | .init = nomadik_timer_init, | |
268 | }; | |
269 | ||
28ad94ec AR |
270 | static void __init nhk8815_platform_init(void) |
271 | { | |
272 | int i; | |
273 | ||
274 | cpu8815_platform_init(); | |
8b85e7cb | 275 | nhk8815_onenand_init(); |
28ad94ec AR |
276 | platform_add_devices(nhk8815_platform_devices, |
277 | ARRAY_SIZE(nhk8815_platform_devices)); | |
278 | ||
279 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
280 | nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name); | |
281 | amba_device_register(amba_devs[i], &iomem_resource); | |
282 | } | |
283 | } | |
284 | ||
285 | MACHINE_START(NOMADIK, "NHK8815") | |
286 | /* Maintainer: ST MicroElectronics */ | |
287 | .phys_io = NOMADIK_UART0_BASE, | |
288 | .io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc, | |
289 | .boot_params = 0x100, | |
290 | .map_io = cpu8815_map_io, | |
291 | .init_irq = cpu8815_init_irq, | |
292 | .timer = &nomadik_timer, | |
293 | .init_machine = nhk8815_platform_init, | |
294 | MACHINE_END |