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/err.h>
23 #include <linux/clk.h>
25 #include <asm/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/flash.h>
31 #include <asm/arch/gpio.h>
32 #include <asm/arch/mux.h>
33 #include <asm/arch/board.h>
34 #include <asm/arch/common.h>
35 #include <asm/arch/gpmc.h>
36 #include "prcm-regs.h"
40 #define SDP2430_FLASH_CS 0
41 #define SDP2430_SMC91X_CS 5
43 static struct mtd_partition sdp2430_partitions[] = {
44 /* bootloader (U-Boot, etc) in first sector */
49 .mask_flags = MTD_WRITEABLE, /* force read-only */
51 /* bootloader params in the next sector */
54 .offset = MTDPART_OFS_APPEND,
61 .offset = MTDPART_OFS_APPEND,
68 .offset = MTDPART_OFS_APPEND,
69 .size = MTDPART_SIZ_FULL,
74 static struct flash_platform_data sdp2430_flash_data = {
75 .map_name = "cfi_probe",
77 .parts = sdp2430_partitions,
78 .nr_parts = ARRAY_SIZE(sdp2430_partitions),
81 static struct resource sdp2430_flash_resource = {
82 .start = SDP2430_CS0_BASE,
83 .end = SDP2430_CS0_BASE + SZ_64M - 1,
84 .flags = IORESOURCE_MEM,
87 static struct platform_device sdp2430_flash_device = {
91 .platform_data = &sdp2430_flash_data,
94 .resource = &sdp2430_flash_resource,
97 static struct resource sdp2430_smc91x_resources[] = {
99 .start = SDP2430_CS0_BASE,
100 .end = SDP2430_CS0_BASE + SZ_64M - 1,
101 .flags = IORESOURCE_MEM,
104 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
105 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
106 .flags = IORESOURCE_IRQ,
110 static struct platform_device sdp2430_smc91x_device = {
113 .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
114 .resource = sdp2430_smc91x_resources,
117 static struct platform_device *sdp2430_devices[] __initdata = {
118 &sdp2430_smc91x_device,
119 &sdp2430_flash_device,
122 static inline void __init sdp2430_init_smc91x(void)
125 unsigned long cs_mem_base;
129 eth_cs = SDP2430_SMC91X_CS;
131 l3ck = clk_get(NULL, "core_l3_ck");
135 rate = clk_get_rate(l3ck);
137 /* Make sure CS1 timings are correct, for 2430 always muxed */
138 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
140 if (rate >= 160000000) {
141 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
142 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
143 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
144 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
145 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
146 } else if (rate >= 130000000) {
147 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
148 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
149 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
150 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
151 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
152 } else { /* rate = 100000000 */
153 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
154 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
155 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
156 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
157 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
160 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
161 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
165 sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
166 sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
169 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
170 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
171 OMAP24XX_ETHR_GPIO_IRQ);
172 gpmc_cs_free(eth_cs);
175 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
179 static void __init omap_2430sdp_init_irq(void)
181 omap2_init_common_hw();
184 sdp2430_init_smc91x();
187 static struct omap_uart_config sdp2430_uart_config __initdata = {
188 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
191 static struct omap_board_config_kernel sdp2430_config[] = {
192 {OMAP_TAG_UART, &sdp2430_uart_config},
195 #if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
197 #define OMAP2_I2C_BASE1 0x48070000
198 #define OMAP2_I2C_BASE2 0x48072000
199 #define OMAP2_I2C_INT1 56
200 #define OMAP2_I2C_INT2 57
202 static u32 omap2_i2c1_clkrate = 400;
203 static u32 omap2_i2c2_clkrate = 2600;
205 static struct resource i2c_resources1[] = {
207 .start = OMAP2_I2C_BASE1,
208 .end = OMAP2_I2C_BASE1 + 0x3f,
209 .flags = IORESOURCE_MEM,
212 .start = OMAP2_I2C_INT1,
213 .flags = IORESOURCE_IRQ,
217 static struct resource i2c_resources2[] = {
219 .start = OMAP2_I2C_BASE2,
220 .end = OMAP2_I2C_BASE2 + 0x3f,
221 .flags = IORESOURCE_MEM,
224 .start = OMAP2_I2C_INT2,
225 .flags = IORESOURCE_IRQ,
229 static struct platform_device omap_i2c_device1 = {
232 .num_resources = ARRAY_SIZE(i2c_resources1),
233 .resource = i2c_resources1,
235 .platform_data = &omap2_i2c1_clkrate,
239 static struct platform_device omap_i2c_device2 = {
242 .num_resources = ARRAY_SIZE(i2c_resources2),
243 .resource = i2c_resources2,
245 .platform_data = &omap2_i2c2_clkrate,
249 static void omap_init_i2c(void)
251 (void) platform_device_register(&omap_i2c_device2);
252 (void) platform_device_register(&omap_i2c_device1);
257 static void omap_init_i2c(void) {}
261 static int __init omap2430_i2c_init(void)
267 extern void __init sdp2430_flash_init(void);
269 static void __init omap_2430sdp_init(void)
271 platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
272 omap_board_config = sdp2430_config;
273 omap_board_config_size = ARRAY_SIZE(sdp2430_config);
276 sdp2430_flash_init();
279 static void __init omap_2430sdp_map_io(void)
281 omap2_map_common_io();
284 arch_initcall(omap2430_i2c_init);
286 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
287 /* Maintainer: Syed Khasim - Texas Instruments Inc */
288 .phys_io = 0x48000000,
289 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
290 .boot_params = 0x80000100,
291 .map_io = omap_2430sdp_map_io,
292 .init_irq = omap_2430sdp_init_irq,
293 .init_machine = omap_2430sdp_init,
294 .timer = &omap_timer,