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>
39 #include "mmc-twl4030.h"
41 #define SDP2430_CS0_BASE 0x04000000
42 #define SDP2430_FLASH_CS 0
43 #define SDP2430_SMC91X_CS 5
45 #define SDP2430_ETHR_GPIO_IRQ 149
47 static struct mtd_partition sdp2430_partitions[] = {
48 /* bootloader (U-Boot, etc) in first sector */
53 .mask_flags = MTD_WRITEABLE, /* force read-only */
55 /* bootloader params in the next sector */
58 .offset = MTDPART_OFS_APPEND,
65 .offset = MTDPART_OFS_APPEND,
72 .offset = MTDPART_OFS_APPEND,
73 .size = MTDPART_SIZ_FULL,
78 static struct flash_platform_data sdp2430_flash_data = {
79 .map_name = "cfi_probe",
81 .parts = sdp2430_partitions,
82 .nr_parts = ARRAY_SIZE(sdp2430_partitions),
85 static struct resource sdp2430_flash_resource = {
86 .start = SDP2430_CS0_BASE,
87 .end = SDP2430_CS0_BASE + SZ_64M - 1,
88 .flags = IORESOURCE_MEM,
91 static struct platform_device sdp2430_flash_device = {
95 .platform_data = &sdp2430_flash_data,
98 .resource = &sdp2430_flash_resource,
101 static struct resource sdp2430_smc91x_resources[] = {
103 .start = SDP2430_CS0_BASE,
104 .end = SDP2430_CS0_BASE + SZ_64M - 1,
105 .flags = IORESOURCE_MEM,
108 .start = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
109 .end = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
110 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
114 static struct platform_device sdp2430_smc91x_device = {
117 .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
118 .resource = sdp2430_smc91x_resources,
121 static struct platform_device *sdp2430_devices[] __initdata = {
122 &sdp2430_smc91x_device,
123 &sdp2430_flash_device,
126 static inline void __init sdp2430_init_smc91x(void)
129 unsigned long cs_mem_base;
131 struct clk *gpmc_fck;
133 eth_cs = SDP2430_SMC91X_CS;
135 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
136 if (IS_ERR(gpmc_fck)) {
141 clk_enable(gpmc_fck);
142 rate = clk_get_rate(gpmc_fck);
144 /* Make sure CS1 timings are correct, for 2430 always muxed */
145 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
147 if (rate >= 160000000) {
148 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
149 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
150 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
151 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
152 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
153 } else if (rate >= 130000000) {
154 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
155 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
156 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
157 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
158 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
159 } else { /* rate = 100000000 */
160 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
161 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
162 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
163 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
164 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
167 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
168 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
172 sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
173 sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
176 if (gpio_request(SDP2430_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
177 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
178 SDP2430_ETHR_GPIO_IRQ);
179 gpmc_cs_free(eth_cs);
182 gpio_direction_input(SDP2430_ETHR_GPIO_IRQ);
185 clk_disable(gpmc_fck);
189 static void __init omap_2430sdp_init_irq(void)
191 omap2_init_common_hw();
194 sdp2430_init_smc91x();
197 static struct omap_uart_config sdp2430_uart_config __initdata = {
198 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
201 static struct omap_board_config_kernel sdp2430_config[] = {
202 {OMAP_TAG_UART, &sdp2430_uart_config},
206 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
207 .gpio_base = OMAP_MAX_GPIO_LINES,
208 .irq_base = TWL4030_GPIO_IRQ_BASE,
209 .irq_end = TWL4030_GPIO_IRQ_END,
212 static struct twl4030_platform_data sdp2430_twldata = {
213 .irq_base = TWL4030_IRQ_BASE,
214 .irq_end = TWL4030_IRQ_END,
216 /* platform_data for children goes here */
217 .gpio = &sdp2430_gpio_data,
220 static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
222 I2C_BOARD_INFO("twl4030", 0x48),
223 .flags = I2C_CLIENT_WAKE,
224 .irq = INT_24XX_SYS_NIRQ,
225 .platform_data = &sdp2430_twldata,
229 static int __init omap2430_i2c_init(void)
231 omap_register_i2c_bus(1, 400, NULL, 0);
232 omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
233 ARRAY_SIZE(sdp2430_i2c_boardinfo));
237 static struct twl4030_hsmmc_info mmc[] __initdata = {
248 static void __init omap_2430sdp_init(void)
252 platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
253 omap_board_config = sdp2430_config;
254 omap_board_config_size = ARRAY_SIZE(sdp2430_config);
256 twl4030_mmc_init(mmc);
259 static void __init omap_2430sdp_map_io(void)
261 omap2_set_globals_243x();
262 omap2_map_common_io();
265 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
266 /* Maintainer: Syed Khasim - Texas Instruments Inc */
267 .phys_io = 0x48000000,
268 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
269 .boot_params = 0x80000100,
270 .map_io = omap_2430sdp_map_io,
271 .init_irq = omap_2430sdp_init_irq,
272 .init_machine = omap_2430sdp_init,
273 .timer = &omap_timer,