2 * linux/arch/arm/mach-omap2/board-2430sdp.c
4 * Copyright (C) 2006 Texas Instruments
6 * Modified from mach-omap2/board-generic.c
8 * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
9 * Updated the Code for 2430 SDP : Syed Mohammed Khasim
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/partitions.h>
21 #include <linux/delay.h>
22 #include <linux/i2c/twl4030.h>
23 #include <linux/err.h>
24 #include <linux/clk.h>
27 #include <mach/hardware.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/flash.h>
33 #include <mach/gpio.h>
35 #include <mach/board.h>
36 #include <mach/common.h>
37 #include <mach/gpmc.h>
40 #include "mmc-twl4030.h"
42 #define SDP2430_CS0_BASE 0x04000000
43 #define SDP2430_FLASH_CS 0
44 #define SDP2430_SMC91X_CS 5
46 #define SDP2430_ETHR_GPIO_IRQ 149
48 static struct mtd_partition sdp2430_partitions
[] = {
49 /* bootloader (U-Boot, etc) in first sector */
54 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
56 /* bootloader params in the next sector */
59 .offset
= MTDPART_OFS_APPEND
,
66 .offset
= MTDPART_OFS_APPEND
,
73 .offset
= MTDPART_OFS_APPEND
,
74 .size
= MTDPART_SIZ_FULL
,
79 static struct flash_platform_data sdp2430_flash_data
= {
80 .map_name
= "cfi_probe",
82 .parts
= sdp2430_partitions
,
83 .nr_parts
= ARRAY_SIZE(sdp2430_partitions
),
86 static struct resource sdp2430_flash_resource
= {
87 .start
= SDP2430_CS0_BASE
,
88 .end
= SDP2430_CS0_BASE
+ SZ_64M
- 1,
89 .flags
= IORESOURCE_MEM
,
92 static struct platform_device sdp2430_flash_device
= {
96 .platform_data
= &sdp2430_flash_data
,
99 .resource
= &sdp2430_flash_resource
,
102 static struct resource sdp2430_smc91x_resources
[] = {
104 .start
= SDP2430_CS0_BASE
,
105 .end
= SDP2430_CS0_BASE
+ SZ_64M
- 1,
106 .flags
= IORESOURCE_MEM
,
109 .start
= OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ
),
110 .end
= OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ
),
111 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_LOWLEVEL
,
115 static struct platform_device sdp2430_smc91x_device
= {
118 .num_resources
= ARRAY_SIZE(sdp2430_smc91x_resources
),
119 .resource
= sdp2430_smc91x_resources
,
122 static struct platform_device
*sdp2430_devices
[] __initdata
= {
123 &sdp2430_smc91x_device
,
124 &sdp2430_flash_device
,
127 static inline void __init
sdp2430_init_smc91x(void)
130 unsigned long cs_mem_base
;
132 struct clk
*gpmc_fck
;
134 eth_cs
= SDP2430_SMC91X_CS
;
136 gpmc_fck
= clk_get(NULL
, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
137 if (IS_ERR(gpmc_fck
)) {
142 clk_enable(gpmc_fck
);
143 rate
= clk_get_rate(gpmc_fck
);
145 /* Make sure CS1 timings are correct, for 2430 always muxed */
146 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG1
, 0x00011200);
148 if (rate
>= 160000000) {
149 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG2
, 0x001f1f01);
150 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG3
, 0x00080803);
151 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG4
, 0x1c0b1c0a);
152 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG5
, 0x041f1F1F);
153 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000004C4);
154 } else if (rate
>= 130000000) {
155 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG2
, 0x001f1f00);
156 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG3
, 0x00080802);
157 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG4
, 0x1C091C09);
158 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG5
, 0x041f1F1F);
159 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000004C4);
160 } else { /* rate = 100000000 */
161 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG2
, 0x001f1f00);
162 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG3
, 0x00080802);
163 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG4
, 0x1C091C09);
164 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG5
, 0x031A1F1F);
165 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000003C2);
168 if (gpmc_cs_request(eth_cs
, SZ_16M
, &cs_mem_base
) < 0) {
169 printk(KERN_ERR
"Failed to request GPMC mem for smc91x\n");
173 sdp2430_smc91x_resources
[0].start
= cs_mem_base
+ 0x300;
174 sdp2430_smc91x_resources
[0].end
= cs_mem_base
+ 0x30f;
177 if (gpio_request(SDP2430_ETHR_GPIO_IRQ
, "SMC91x irq") < 0) {
178 printk(KERN_ERR
"Failed to request GPIO%d for smc91x IRQ\n",
179 SDP2430_ETHR_GPIO_IRQ
);
180 gpmc_cs_free(eth_cs
);
183 gpio_direction_input(SDP2430_ETHR_GPIO_IRQ
);
186 clk_disable(gpmc_fck
);
190 static void __init
omap_2430sdp_init_irq(void)
192 omap2_init_common_hw();
195 sdp2430_init_smc91x();
198 static struct omap_uart_config sdp2430_uart_config __initdata
= {
199 .enabled_uarts
= ((1 << 0) | (1 << 1) | (1 << 2)),
202 static struct omap_board_config_kernel sdp2430_config
[] = {
203 {OMAP_TAG_UART
, &sdp2430_uart_config
},
207 static struct twl4030_gpio_platform_data sdp2430_gpio_data
= {
208 .gpio_base
= OMAP_MAX_GPIO_LINES
,
209 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
210 .irq_end
= TWL4030_GPIO_IRQ_END
,
213 static struct twl4030_platform_data sdp2430_twldata
= {
214 .irq_base
= TWL4030_IRQ_BASE
,
215 .irq_end
= TWL4030_IRQ_END
,
217 /* platform_data for children goes here */
218 .gpio
= &sdp2430_gpio_data
,
221 static struct i2c_board_info __initdata sdp2430_i2c_boardinfo
[] = {
223 I2C_BOARD_INFO("twl4030", 0x48),
224 .flags
= I2C_CLIENT_WAKE
,
225 .irq
= INT_24XX_SYS_NIRQ
,
226 .platform_data
= &sdp2430_twldata
,
230 static int __init
omap2430_i2c_init(void)
232 omap_register_i2c_bus(1, 400, NULL
, 0);
233 omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo
,
234 ARRAY_SIZE(sdp2430_i2c_boardinfo
));
238 static struct twl4030_hsmmc_info mmc
[] __initdata
= {
249 static void __init
omap_2430sdp_init(void)
253 platform_add_devices(sdp2430_devices
, ARRAY_SIZE(sdp2430_devices
));
254 omap_board_config
= sdp2430_config
;
255 omap_board_config_size
= ARRAY_SIZE(sdp2430_config
);
257 twl4030_mmc_init(mmc
);
261 static void __init
omap_2430sdp_map_io(void)
263 omap2_set_globals_243x();
264 omap2_map_common_io();
267 MACHINE_START(OMAP_2430SDP
, "OMAP2430 sdp2430 board")
268 /* Maintainer: Syed Khasim - Texas Instruments Inc */
269 .phys_io
= 0x48000000,
270 .io_pg_offst
= ((0xd8000000) >> 18) & 0xfffc,
271 .boot_params
= 0x80000100,
272 .map_io
= omap_2430sdp_map_io
,
273 .init_irq
= omap_2430sdp_init_irq
,
274 .init_machine
= omap_2430sdp_init
,
275 .timer
= &omap_timer
,