2 * linux/arch/arm/mach-omap1/devices.c
4 * OMAP1 platform device setup/initialization
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
12 #include <linux/dma-mapping.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
18 #include <linux/spi/spi.h>
20 #include <mach/hardware.h>
21 #include <asm/mach/map.h>
24 #include <plat/board.h>
26 #include <mach/gpio.h>
28 #include <plat/omap7xx.h>
30 /*-------------------------------------------------------------------------*/
32 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
34 #define OMAP_RTC_BASE 0xfffb4800
36 static struct resource rtc_resources
[] = {
38 .start
= OMAP_RTC_BASE
,
39 .end
= OMAP_RTC_BASE
+ 0x5f,
40 .flags
= IORESOURCE_MEM
,
43 .start
= INT_RTC_TIMER
,
44 .flags
= IORESOURCE_IRQ
,
47 .start
= INT_RTC_ALARM
,
48 .flags
= IORESOURCE_IRQ
,
52 static struct platform_device omap_rtc_device
= {
55 .num_resources
= ARRAY_SIZE(rtc_resources
),
56 .resource
= rtc_resources
,
59 static void omap_init_rtc(void)
61 (void) platform_device_register(&omap_rtc_device
);
64 static inline void omap_init_rtc(void) {}
67 static inline void omap_init_mbox(void) { }
69 /*-------------------------------------------------------------------------*/
71 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
73 static inline void omap1_mmc_mux(struct omap_mmc_platform_data
*mmc_controller
,
76 if (controller_nr
== 0) {
77 if (cpu_is_omap7xx()) {
78 omap_cfg_reg(MMC_7XX_CMD
);
79 omap_cfg_reg(MMC_7XX_CLK
);
80 omap_cfg_reg(MMC_7XX_DAT0
);
82 omap_cfg_reg(MMC_CMD
);
83 omap_cfg_reg(MMC_CLK
);
84 omap_cfg_reg(MMC_DAT0
);
87 if (cpu_is_omap1710()) {
88 omap_cfg_reg(M15_1710_MMC_CLKI
);
89 omap_cfg_reg(P19_1710_MMC_CMDDIR
);
90 omap_cfg_reg(P20_1710_MMC_DATDIR0
);
92 if (mmc_controller
->slots
[0].wires
== 4 && !cpu_is_omap7xx()) {
93 omap_cfg_reg(MMC_DAT1
);
94 /* NOTE: DAT2 can be on W10 (here) or M15 */
95 if (!mmc_controller
->slots
[0].nomux
)
96 omap_cfg_reg(MMC_DAT2
);
97 omap_cfg_reg(MMC_DAT3
);
101 /* Block 2 is on newer chips, and has many pinout options */
102 if (cpu_is_omap16xx() && controller_nr
== 1) {
103 if (!mmc_controller
->slots
[1].nomux
) {
104 omap_cfg_reg(Y8_1610_MMC2_CMD
);
105 omap_cfg_reg(Y10_1610_MMC2_CLK
);
106 omap_cfg_reg(R18_1610_MMC2_CLKIN
);
107 omap_cfg_reg(W8_1610_MMC2_DAT0
);
108 if (mmc_controller
->slots
[1].wires
== 4) {
109 omap_cfg_reg(V8_1610_MMC2_DAT1
);
110 omap_cfg_reg(W15_1610_MMC2_DAT2
);
111 omap_cfg_reg(R10_1610_MMC2_DAT3
);
114 /* These are needed for the level shifter */
115 omap_cfg_reg(V9_1610_MMC2_CMDDIR
);
116 omap_cfg_reg(V5_1610_MMC2_DATDIR0
);
117 omap_cfg_reg(W19_1610_MMC2_DATDIR1
);
120 /* Feedback clock must be set on OMAP-1710 MMC2 */
121 if (cpu_is_omap1710())
122 omap_writel(omap_readl(MOD_CONF_CTRL_1
) | (1 << 24),
127 void __init
omap1_init_mmc(struct omap_mmc_platform_data
**mmc_data
,
132 for (i
= 0; i
< nr_controllers
; i
++) {
133 unsigned long base
, size
;
134 unsigned int irq
= 0;
139 omap1_mmc_mux(mmc_data
[i
], i
);
143 base
= OMAP1_MMC1_BASE
;
147 if (!cpu_is_omap16xx())
149 base
= OMAP1_MMC2_BASE
;
155 size
= OMAP1_MMC_SIZE
;
157 omap_mmc_add("mmci-omap", i
, base
, size
, irq
, mmc_data
[i
]);
163 /*-------------------------------------------------------------------------*/
165 /* OMAP7xx SPI support */
166 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
168 struct platform_device omap_spi1
= {
169 .name
= "omap1_spi100k",
173 struct platform_device omap_spi2
= {
174 .name
= "omap1_spi100k",
178 static void omap_init_spi100k(void)
180 omap_spi1
.dev
.platform_data
= ioremap(OMAP7XX_SPI1_BASE
, 0x7ff);
181 if (omap_spi1
.dev
.platform_data
)
182 platform_device_register(&omap_spi1
);
184 omap_spi2
.dev
.platform_data
= ioremap(OMAP7XX_SPI2_BASE
, 0x7ff);
185 if (omap_spi2
.dev
.platform_data
)
186 platform_device_register(&omap_spi2
);
190 static inline void omap_init_spi100k(void)
196 #define OMAP1_CAMERA_BASE 0xfffb6800
197 #define OMAP1_CAMERA_IOSIZE 0x1c
199 static struct resource omap1_camera_resources
[] = {
201 .start
= OMAP1_CAMERA_BASE
,
202 .end
= OMAP1_CAMERA_BASE
+ OMAP1_CAMERA_IOSIZE
- 1,
203 .flags
= IORESOURCE_MEM
,
207 .flags
= IORESOURCE_IRQ
,
211 static u64 omap1_camera_dma_mask
= DMA_BIT_MASK(32);
213 static struct platform_device omap1_camera_device
= {
214 .name
= "omap1-camera",
215 .id
= 0, /* This is used to put cameras on this interface */
217 .dma_mask
= &omap1_camera_dma_mask
,
218 .coherent_dma_mask
= DMA_BIT_MASK(32),
220 .num_resources
= ARRAY_SIZE(omap1_camera_resources
),
221 .resource
= omap1_camera_resources
,
224 void __init
omap1_camera_init(void *info
)
226 struct platform_device
*dev
= &omap1_camera_device
;
229 dev
->dev
.platform_data
= info
;
231 ret
= platform_device_register(dev
);
233 dev_err(&dev
->dev
, "unable to register device: %d\n", ret
);
237 /*-------------------------------------------------------------------------*/
239 static inline void omap_init_sti(void) {}
241 /*-------------------------------------------------------------------------*/
244 * This gets called after board-specific INIT_MACHINE, and initializes most
245 * on-chip peripherals accessible on this board (except for few like USB):
247 * (a) Does any "standard config" pin muxing needed. Board-specific
248 * code will have muxed GPIO pins and done "nonstandard" setup;
249 * that code could live in the boot loader.
250 * (b) Populating board-specific platform_data with the data drivers
251 * rely on to handle wiring variations.
252 * (c) Creating platform devices as meaningful on this board and
253 * with this kernel configuration.
255 * Claiming GPIOs, and setting their direction and initial values, is the
256 * responsibility of the device drivers. So is responding to probe().
258 * Board-specific knowlege like creating devices or pin setup is to be
259 * kept out of drivers as much as possible. In particular, pin setup
260 * may be handled by the boot loader, and drivers should expect it will
261 * normally have been done by the time they're probed.
263 static int __init
omap1_init_devices(void)
265 /* please keep these calls, and their implementations above,
266 * in alphabetical order so they're easier to sort through.
276 arch_initcall(omap1_init_devices
);