Linux-2.6.12-rc2
[linux-2.6.git] / arch / arm / mach-omap / board-perseus2.c
1 /*
2  * linux/arch/arm/mach-omap/board-perseus2.c
3  *
4  * Modified from board-generic.c
5  *
6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/device.h>
17 #include <linux/delay.h>
18 #include <linux/mtd/mtd.h>
19 #include <linux/mtd/partitions.h>
20
21 #include <asm/hardware.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/flash.h>
25 #include <asm/mach/map.h>
26
27 #include <asm/arch/gpio.h>
28 #include <asm/arch/mux.h>
29 #include <asm/arch/fpga.h>
30
31 #include "common.h"
32
33 static struct resource smc91x_resources[] = {
34         [0] = {
35                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
36                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
37                 .flags  = IORESOURCE_MEM,
38         },
39         [1] = {
40                 .start  = INT_730_MPU_EXT_NIRQ,
41                 .end    = 0,
42                 .flags  = IORESOURCE_IRQ,
43         },
44 };
45
46 static int __initdata p2_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 0};
47
48 static struct mtd_partition p2_partitions[] = {
49         /* bootloader (U-Boot, etc) in first sector */
50         {
51               .name             = "bootloader",
52               .offset           = 0,
53               .size             = SZ_128K,
54               .mask_flags       = MTD_WRITEABLE, /* force read-only */
55         },
56         /* bootloader params in the next sector */
57         {
58               .name             = "params",
59               .offset           = MTDPART_OFS_APPEND,
60               .size             = SZ_128K,
61               .mask_flags       = 0,
62         },
63         /* kernel */
64         {
65               .name             = "kernel",
66               .offset           = MTDPART_OFS_APPEND,
67               .size             = SZ_2M,
68               .mask_flags       = 0
69         },
70         /* rest of flash is a file system */
71         {
72               .name             = "rootfs",
73               .offset           = MTDPART_OFS_APPEND,
74               .size             = MTDPART_SIZ_FULL,
75               .mask_flags       = 0
76         },
77 };
78
79 static struct flash_platform_data p2_flash_data = {
80         .map_name       = "cfi_probe",
81         .width          = 2,
82         .parts          = p2_partitions,
83         .nr_parts       = ARRAY_SIZE(p2_partitions),
84 };
85
86 static struct resource p2_flash_resource = {
87         .start          = OMAP_FLASH_0_START,
88         .end            = OMAP_FLASH_0_START + OMAP_FLASH_0_SIZE - 1,
89         .flags          = IORESOURCE_MEM,
90 };
91
92 static struct platform_device p2_flash_device = {
93         .name           = "omapflash",
94         .id             = 0,
95         .dev            = {
96                 .platform_data  = &p2_flash_data,
97         },
98         .num_resources  = 1,
99         .resource       = &p2_flash_resource,
100 };
101
102 static struct platform_device smc91x_device = {
103         .name           = "smc91x",
104         .id             = 0,
105         .num_resources  = ARRAY_SIZE(smc91x_resources),
106         .resource       = smc91x_resources,
107 };
108
109 static struct platform_device *devices[] __initdata = {
110         &p2_flash_device,
111         &smc91x_device,
112 };
113
114 static void __init omap_perseus2_init(void)
115 {
116         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
117 }
118
119 static void __init perseus2_init_smc91x(void)
120 {
121         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
122         mdelay(50);
123         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
124                    H2P2_DBG_FPGA_LAN_RESET);
125         mdelay(50);
126 }
127
128 void omap_perseus2_init_irq(void)
129 {
130         omap_init_irq();
131         omap_gpio_init();
132         perseus2_init_smc91x();
133 }
134
135 /* Only FPGA needs to be mapped here. All others are done with ioremap */
136 static struct map_desc omap_perseus2_io_desc[] __initdata = {
137         {H2P2_DBG_FPGA_BASE, H2P2_DBG_FPGA_START, H2P2_DBG_FPGA_SIZE,
138          MT_DEVICE},
139 };
140
141 static void __init omap_perseus2_map_io(void)
142 {
143         omap_map_io();
144         iotable_init(omap_perseus2_io_desc,
145                      ARRAY_SIZE(omap_perseus2_io_desc));
146
147         /* Early, board-dependent init */
148
149         /*
150          * Hold GSM Reset until needed
151          */
152         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
153
154         /*
155          * UARTs -> done automagically by 8250 driver
156          */
157
158         /*
159          * CSx timings, GPIO Mux ... setup
160          */
161
162         /* Flash: CS0 timings setup */
163         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
164         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
165
166         /*
167          * Ethernet support trough the debug board
168          * CS1 timings setup
169          */
170         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
171         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
172
173         /*
174          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
175          * It is used as the Ethernet controller interrupt
176          */
177         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
178         omap_serial_init(p2_serial_ports);
179 }
180
181 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
182         MAINTAINER("Kevin Hilman <kjh@hilman.org>")
183         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
184         BOOT_PARAMS(0x10000100)
185         MAPIO(omap_perseus2_map_io)
186         INITIRQ(omap_perseus2_init_irq)
187         INIT_MACHINE(omap_perseus2_init)
188         .timer          = &omap_timer,
189 MACHINE_END