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>
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 #include <asm/mach/flash.h>
32 #include <mach/gpio.h>
34 #include <mach/board.h>
35 #include <mach/common.h>
36 #include <mach/gpmc.h>
39 #define SDP2430_FLASH_CS 0
40 #define SDP2430_SMC91X_CS 5
42 static struct mtd_partition sdp2430_partitions
[] = {
43 /* bootloader (U-Boot, etc) in first sector */
48 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
50 /* bootloader params in the next sector */
53 .offset
= MTDPART_OFS_APPEND
,
60 .offset
= MTDPART_OFS_APPEND
,
67 .offset
= MTDPART_OFS_APPEND
,
68 .size
= MTDPART_SIZ_FULL
,
73 static struct flash_platform_data sdp2430_flash_data
= {
74 .map_name
= "cfi_probe",
76 .parts
= sdp2430_partitions
,
77 .nr_parts
= ARRAY_SIZE(sdp2430_partitions
),
80 static struct resource sdp2430_flash_resource
= {
81 .start
= SDP2430_CS0_BASE
,
82 .end
= SDP2430_CS0_BASE
+ SZ_64M
- 1,
83 .flags
= IORESOURCE_MEM
,
86 static struct platform_device sdp2430_flash_device
= {
90 .platform_data
= &sdp2430_flash_data
,
93 .resource
= &sdp2430_flash_resource
,
96 static struct resource sdp2430_smc91x_resources
[] = {
98 .start
= SDP2430_CS0_BASE
,
99 .end
= SDP2430_CS0_BASE
+ SZ_64M
- 1,
100 .flags
= IORESOURCE_MEM
,
103 .start
= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ
),
104 .end
= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ
),
105 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_LOWLEVEL
,
109 static struct platform_device sdp2430_smc91x_device
= {
112 .num_resources
= ARRAY_SIZE(sdp2430_smc91x_resources
),
113 .resource
= sdp2430_smc91x_resources
,
116 static struct platform_device
*sdp2430_devices
[] __initdata
= {
117 &sdp2430_smc91x_device
,
118 &sdp2430_flash_device
,
121 static inline void __init
sdp2430_init_smc91x(void)
124 unsigned long cs_mem_base
;
126 struct clk
*gpmc_fck
;
128 eth_cs
= SDP2430_SMC91X_CS
;
130 gpmc_fck
= clk_get(NULL
, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
131 if (IS_ERR(gpmc_fck
)) {
136 clk_enable(gpmc_fck
);
137 rate
= clk_get_rate(gpmc_fck
);
139 /* Make sure CS1 timings are correct, for 2430 always muxed */
140 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG1
, 0x00011200);
142 if (rate
>= 160000000) {
143 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG2
, 0x001f1f01);
144 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG3
, 0x00080803);
145 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG4
, 0x1c0b1c0a);
146 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG5
, 0x041f1F1F);
147 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000004C4);
148 } else if (rate
>= 130000000) {
149 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG2
, 0x001f1f00);
150 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG3
, 0x00080802);
151 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG4
, 0x1C091C09);
152 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG5
, 0x041f1F1F);
153 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000004C4);
154 } else { /* rate = 100000000 */
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
, 0x031A1F1F);
159 gpmc_cs_write_reg(eth_cs
, GPMC_CS_CONFIG6
, 0x000003C2);
162 if (gpmc_cs_request(eth_cs
, SZ_16M
, &cs_mem_base
) < 0) {
163 printk(KERN_ERR
"Failed to request GPMC mem for smc91x\n");
167 sdp2430_smc91x_resources
[0].start
= cs_mem_base
+ 0x300;
168 sdp2430_smc91x_resources
[0].end
= cs_mem_base
+ 0x30f;
171 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ
) < 0) {
172 printk(KERN_ERR
"Failed to request GPIO%d for smc91x IRQ\n",
173 OMAP24XX_ETHR_GPIO_IRQ
);
174 gpmc_cs_free(eth_cs
);
177 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ
, 1);
180 clk_disable(gpmc_fck
);
184 static void __init
omap_2430sdp_init_irq(void)
186 omap2_init_common_hw();
189 sdp2430_init_smc91x();
192 static struct omap_uart_config sdp2430_uart_config __initdata
= {
193 .enabled_uarts
= ((1 << 0) | (1 << 1) | (1 << 2)),
196 static struct omap_board_config_kernel sdp2430_config
[] = {
197 {OMAP_TAG_UART
, &sdp2430_uart_config
},
200 static void __init
omap_2430sdp_init(void)
202 platform_add_devices(sdp2430_devices
, ARRAY_SIZE(sdp2430_devices
));
203 omap_board_config
= sdp2430_config
;
204 omap_board_config_size
= ARRAY_SIZE(sdp2430_config
);
208 static void __init
omap_2430sdp_map_io(void)
210 omap2_set_globals_243x();
211 omap2_map_common_io();
214 MACHINE_START(OMAP_2430SDP
, "OMAP2430 sdp2430 board")
215 /* Maintainer: Syed Khasim - Texas Instruments Inc */
216 .phys_io
= 0x48000000,
217 .io_pg_offst
= ((0xd8000000) >> 18) & 0xfffc,
218 .boot_params
= 0x80000100,
219 .map_io
= omap_2430sdp_map_io
,
220 .init_irq
= omap_2430sdp_init_irq
,
221 .init_machine
= omap_2430sdp_init
,
222 .timer
= &omap_timer
,