Merge remote-tracking branch 'korg_arm-soc/timer/cleanup' into cleanup
[linux-3.10.git] / arch / arm / mach-nomadik / board-nhk8815.c
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>
17 #include <linux/amba/mmci.h>
18 #include <linux/interrupt.h>
19 #include <linux/gpio.h>
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/nand.h>
22 #include <linux/mtd/fsmc.h>
23 #include <linux/mtd/onenand.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/i2c.h>
26 #include <linux/io.h>
27 #include <linux/pinctrl/machine.h>
28 #include <linux/platform_data/pinctrl-nomadik.h>
29 #include <linux/platform_data/clocksource-nomadik-mtu.h>
30 #include <asm/hardware/vic.h>
31 #include <asm/sizes.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/flash.h>
35 #include <asm/mach/time.h>
36 #include <mach/irqs.h>
37
38 #include "cpu-8815.h"
39
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
43
44 #define ALE_OFF 0x1000000
45 #define CLE_OFF 0x800000
46
47 /* These addresses span 16MB, so use three individual pages */
48 static struct resource nhk8815_nand_resources[] = {
49         {
50                 .name = "nand_data",
51                 .start = 0x40000000,
52                 .end = 0x40000000 + SZ_16K - 1,
53                 .flags = IORESOURCE_MEM,
54         }, {
55                 .name = "nand_addr",
56                 .start = 0x40000000 + ALE_OFF,
57                 .end = 0x40000000 +ALE_OFF + SZ_16K - 1,
58                 .flags = IORESOURCE_MEM,
59         }, {
60                 .name = "nand_cmd",
61                 .start = 0x40000000 + CLE_OFF,
62                 .end = 0x40000000 + CLE_OFF + SZ_16K - 1,
63                 .flags = IORESOURCE_MEM,
64         }, {
65                 .name  = "fsmc_regs",
66                 .start = NOMADIK_FSMC_BASE,
67                 .end   = NOMADIK_FSMC_BASE + SZ_4K - 1,
68                 .flags = IORESOURCE_MEM,
69         },
70 };
71
72 /*
73  * These partitions are the same as those used in the 2.6.20 release
74  * shipped by the vendor; the first two partitions are mandated
75  * by the boot ROM, and the bootloader area is somehow oversized...
76  */
77 static struct mtd_partition nhk8815_partitions[] = {
78         {
79                 .name   = "X-Loader(NAND)",
80                 .offset = 0,
81                 .size   = SZ_256K,
82         }, {
83                 .name   = "MemInit(NAND)",
84                 .offset = MTDPART_OFS_APPEND,
85                 .size   = SZ_256K,
86         }, {
87                 .name   = "BootLoader(NAND)",
88                 .offset = MTDPART_OFS_APPEND,
89                 .size   = SZ_2M,
90         }, {
91                 .name   = "Kernel zImage(NAND)",
92                 .offset = MTDPART_OFS_APPEND,
93                 .size   = 3 * SZ_1M,
94         }, {
95                 .name   = "Root Filesystem(NAND)",
96                 .offset = MTDPART_OFS_APPEND,
97                 .size   = 22 * SZ_1M,
98         }, {
99                 .name   = "User Filesystem(NAND)",
100                 .offset = MTDPART_OFS_APPEND,
101                 .size   = MTDPART_SIZ_FULL,
102         }
103 };
104
105 static struct fsmc_nand_timings nhk8815_nand_timings = {
106         .thiz   = 0,
107         .thold  = 0x10,
108         .twait  = 0x0A,
109         .tset   = 0,
110 };
111
112 static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
113         .nand_timings = &nhk8815_nand_timings,
114         .partitions = nhk8815_partitions,
115         .nr_partitions = ARRAY_SIZE(nhk8815_partitions),
116         .width = FSMC_NAND_BW8,
117 };
118
119 static struct platform_device nhk8815_nand_device = {
120         .name = "fsmc-nand",
121         .id = -1,
122         .resource = nhk8815_nand_resources,
123         .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
124         .dev = {
125                 .platform_data = &nhk8815_nand_platform_data,
126         },
127 };
128
129 /* These are the partitions for the OneNand device, different from above */
130 static struct mtd_partition nhk8815_onenand_partitions[] = {
131         {
132                 .name   = "X-Loader(OneNAND)",
133                 .offset = 0,
134                 .size   = SZ_256K,
135         }, {
136                 .name   = "MemInit(OneNAND)",
137                 .offset = MTDPART_OFS_APPEND,
138                 .size   = SZ_256K,
139         }, {
140                 .name   = "BootLoader(OneNAND)",
141                 .offset = MTDPART_OFS_APPEND,
142                 .size   = SZ_2M-SZ_256K,
143         }, {
144                 .name   = "SysImage(OneNAND)",
145                 .offset = MTDPART_OFS_APPEND,
146                 .size   = 4 * SZ_1M,
147         }, {
148                 .name   = "Root Filesystem(OneNAND)",
149                 .offset = MTDPART_OFS_APPEND,
150                 .size   = 22 * SZ_1M,
151         }, {
152                 .name   = "User Filesystem(OneNAND)",
153                 .offset = MTDPART_OFS_APPEND,
154                 .size   = MTDPART_SIZ_FULL,
155         }
156 };
157
158 static struct onenand_platform_data nhk8815_onenand_data = {
159         .parts          = nhk8815_onenand_partitions,
160         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
161 };
162
163 static struct resource nhk8815_onenand_resource[] = {
164         {
165                 .start          = 0x30000000,
166                 .end            = 0x30000000 + SZ_128K - 1,
167                 .flags          = IORESOURCE_MEM,
168         },
169 };
170
171 static struct platform_device nhk8815_onenand_device = {
172         .name           = "onenand-flash",
173         .id             = -1,
174         .dev            = {
175                 .platform_data  = &nhk8815_onenand_data,
176         },
177         .resource       = nhk8815_onenand_resource,
178         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
179 };
180
181 /* bus control reg. and bus timing reg. for CS0..CS3 */
182 #define FSMC_BCR(x)     (NOMADIK_FSMC_VA + (x << 3))
183 #define FSMC_BTR(x)     (NOMADIK_FSMC_VA + (x << 3) + 0x04)
184
185 static void __init nhk8815_onenand_init(void)
186 {
187 #ifdef CONFIG_MTD_ONENAND
188        /* Set up SMCS0 for OneNand */
189         writel(0x000030db, FSMC_BCR(0));
190         writel(0x02100551, FSMC_BTR(0));
191 #endif
192 }
193
194 static struct mmci_platform_data mmcsd_plat_data = {
195         .ocr_mask = MMC_VDD_29_30,
196         .f_max = 48000000,
197         .gpio_wp = -1,
198         .gpio_cd = 111,
199         .cd_invert = true,
200         .capabilities = MMC_CAP_MMC_HIGHSPEED |
201         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
202 };
203
204 static int __init nhk8815_mmcsd_init(void)
205 {
206         int ret;
207
208         ret = gpio_request(112, "card detect bias");
209         if (ret)
210                 return ret;
211         gpio_direction_output(112, 0);
212         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
213         return 0;
214 }
215 module_init(nhk8815_mmcsd_init);
216
217 static struct resource nhk8815_eth_resources[] = {
218         {
219                 .name = "smc91x-regs",
220                 .start = 0x34000000 + 0x300,
221                 .end = 0x34000000 + SZ_64K - 1,
222                 .flags = IORESOURCE_MEM,
223         }, {
224                 .start = NOMADIK_GPIO_TO_IRQ(115),
225                 .end = NOMADIK_GPIO_TO_IRQ(115),
226                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
227         }
228 };
229
230 static struct platform_device nhk8815_eth_device = {
231         .name = "smc91x",
232         .resource = nhk8815_eth_resources,
233         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
234 };
235
236 static int __init nhk8815_eth_init(void)
237 {
238         int gpio_nr = 115; /* hardwired in the board */
239         int err;
240
241         err = gpio_request(gpio_nr, "eth_irq");
242         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
243         if (!err) err = gpio_direction_input(gpio_nr);
244         if (err)
245                 pr_err("Error %i in %s\n", err, __func__);
246         return err;
247 }
248 device_initcall(nhk8815_eth_init);
249
250 static struct platform_device *nhk8815_platform_devices[] __initdata = {
251         &nhk8815_nand_device,
252         &nhk8815_onenand_device,
253         &nhk8815_eth_device,
254         /* will add more devices */
255 };
256
257 static void __init nomadik_timer_init(void)
258 {
259         u32 src_cr;
260
261         /* Configure timer sources in "system reset controller" ctrl reg */
262         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
263         src_cr &= SRC_CR_INIT_MASK;
264         src_cr |= SRC_CR_INIT_VAL;
265         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
266
267         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE), IRQ_MTU0);
268 }
269
270 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
271         {
272                 I2C_BOARD_INFO("stw4811", 0x2d),
273         },
274 };
275
276 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
277         {
278                 I2C_BOARD_INFO("camera", 0x10),
279         },
280         {
281                 I2C_BOARD_INFO("stw5095", 0x1a),
282         },
283         {
284                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
285         },
286 };
287
288 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
289         {
290                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
291         },
292 };
293
294 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
295 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
296 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
297 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
298
299 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
300         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
301         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
302         /* Hog in MMC/SD card mux */
303         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
304         /* MCCLK */
305         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
306         /* MCCMD */
307         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
308         /* MCCMDDIR */
309         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
310         /* MCDAT3-0 */
311         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
312         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
313         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
314         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
315         /* MCDAT0DIR */
316         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
317         /* MCDAT31DIR */
318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
319         /* MCMSFBCLK */
320         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
321         /* CD input GPIO */
322         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
323         /* CD bias drive */
324         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
325 };
326
327 static void __init nhk8815_platform_init(void)
328 {
329         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
330         cpu8815_platform_init();
331         nhk8815_onenand_init();
332         platform_add_devices(nhk8815_platform_devices,
333                              ARRAY_SIZE(nhk8815_platform_devices));
334
335         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
336         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
337
338         i2c_register_board_info(0, nhk8815_i2c0_devices,
339                                 ARRAY_SIZE(nhk8815_i2c0_devices));
340         i2c_register_board_info(1, nhk8815_i2c1_devices,
341                                 ARRAY_SIZE(nhk8815_i2c1_devices));
342         i2c_register_board_info(2, nhk8815_i2c2_devices,
343                                 ARRAY_SIZE(nhk8815_i2c2_devices));
344 }
345
346 MACHINE_START(NOMADIK, "NHK8815")
347         /* Maintainer: ST MicroElectronics */
348         .atag_offset    = 0x100,
349         .map_io         = cpu8815_map_io,
350         .init_irq       = cpu8815_init_irq,
351         .handle_irq     = vic_handle_irq,
352         .init_time      = nomadik_timer_init,
353         .init_machine   = nhk8815_platform_init,
354         .restart        = cpu8815_restart,
355 MACHINE_END