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[linux-2.6.git] / arch / arm / mach-omap1 / board-perseus2.c
1 /*
2  * linux/arch/arm/mach-omap1/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/platform_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/tc.h>
28 #include <asm/arch/gpio.h>
29 #include <asm/arch/mux.h>
30 #include <asm/arch/fpga.h>
31 #include <asm/arch/common.h>
32 #include <asm/arch/board.h>
33
34 static struct resource smc91x_resources[] = {
35         [0] = {
36                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
37                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
38                 .flags  = IORESOURCE_MEM,
39         },
40         [1] = {
41                 .start  = INT_730_MPU_EXT_NIRQ,
42                 .end    = 0,
43                 .flags  = IORESOURCE_IRQ,
44         },
45 };
46
47 static struct mtd_partition p2_partitions[] = {
48         /* bootloader (U-Boot, etc) in first sector */
49         {
50               .name             = "bootloader",
51               .offset           = 0,
52               .size             = SZ_128K,
53               .mask_flags       = MTD_WRITEABLE, /* force read-only */
54         },
55         /* bootloader params in the next sector */
56         {
57               .name             = "params",
58               .offset           = MTDPART_OFS_APPEND,
59               .size             = SZ_128K,
60               .mask_flags       = 0,
61         },
62         /* kernel */
63         {
64               .name             = "kernel",
65               .offset           = MTDPART_OFS_APPEND,
66               .size             = SZ_2M,
67               .mask_flags       = 0
68         },
69         /* rest of flash is a file system */
70         {
71               .name             = "rootfs",
72               .offset           = MTDPART_OFS_APPEND,
73               .size             = MTDPART_SIZ_FULL,
74               .mask_flags       = 0
75         },
76 };
77
78 static struct flash_platform_data p2_flash_data = {
79         .map_name       = "cfi_probe",
80         .width          = 2,
81         .parts          = p2_partitions,
82         .nr_parts       = ARRAY_SIZE(p2_partitions),
83 };
84
85 static struct resource p2_flash_resource = {
86         .start          = OMAP_CS0_PHYS,
87         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
88         .flags          = IORESOURCE_MEM,
89 };
90
91 static struct platform_device p2_flash_device = {
92         .name           = "omapflash",
93         .id             = 0,
94         .dev            = {
95                 .platform_data  = &p2_flash_data,
96         },
97         .num_resources  = 1,
98         .resource       = &p2_flash_resource,
99 };
100
101 static struct platform_device smc91x_device = {
102         .name           = "smc91x",
103         .id             = 0,
104         .num_resources  = ARRAY_SIZE(smc91x_resources),
105         .resource       = smc91x_resources,
106 };
107
108 static struct platform_device *devices[] __initdata = {
109         &p2_flash_device,
110         &smc91x_device,
111 };
112
113 static struct omap_uart_config perseus2_uart_config __initdata = {
114         .enabled_uarts = ((1 << 0) | (1 << 1)),
115 };
116
117 static struct omap_lcd_config perseus2_lcd_config __initdata = {
118         .panel_name     = "p2",
119         .ctrl_name      = "internal",
120 };
121
122 static struct omap_board_config_kernel perseus2_config[] = {
123         { OMAP_TAG_UART,        &perseus2_uart_config },
124         { OMAP_TAG_LCD,         &perseus2_lcd_config },
125 };
126
127 static void __init omap_perseus2_init(void)
128 {
129         (void) platform_add_devices(devices, ARRAY_SIZE(devices));
130
131         omap_board_config = perseus2_config;
132         omap_board_config_size = ARRAY_SIZE(perseus2_config);
133         omap_serial_init();
134 }
135
136 static void __init perseus2_init_smc91x(void)
137 {
138         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
139         mdelay(50);
140         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
141                    H2P2_DBG_FPGA_LAN_RESET);
142         mdelay(50);
143 }
144
145 void omap_perseus2_init_irq(void)
146 {
147         omap_init_irq();
148         omap_gpio_init();
149         perseus2_init_smc91x();
150 }
151 /* Only FPGA needs to be mapped here. All others are done with ioremap */
152 static struct map_desc omap_perseus2_io_desc[] __initdata = {
153         {
154                 .virtual        = H2P2_DBG_FPGA_BASE,
155                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
156                 .length         = H2P2_DBG_FPGA_SIZE,
157                 .type           = MT_DEVICE
158         }
159 };
160
161 static void __init omap_perseus2_map_io(void)
162 {
163         omap_map_common_io();
164         iotable_init(omap_perseus2_io_desc,
165                      ARRAY_SIZE(omap_perseus2_io_desc));
166
167         /* Early, board-dependent init */
168
169         /*
170          * Hold GSM Reset until needed
171          */
172         omap_writew(omap_readw(OMAP730_DSP_M_CTL) & ~1, OMAP730_DSP_M_CTL);
173
174         /*
175          * UARTs -> done automagically by 8250 driver
176          */
177
178         /*
179          * CSx timings, GPIO Mux ... setup
180          */
181
182         /* Flash: CS0 timings setup */
183         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_0);
184         omap_writel(0x00000088, OMAP730_FLASH_ACFG_0);
185
186         /*
187          * Ethernet support through the debug board
188          * CS1 timings setup
189          */
190         omap_writel(0x0000fff3, OMAP730_FLASH_CFG_1);
191         omap_writel(0x00000000, OMAP730_FLASH_ACFG_1);
192
193         /*
194          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
195          * It is used as the Ethernet controller interrupt
196          */
197         omap_writel(omap_readl(OMAP730_IO_CONF_9) & 0x1FFFFFFF, OMAP730_IO_CONF_9);
198 }
199
200 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
201         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
202         .phys_ram       = 0x10000000,
203         .phys_io        = 0xfff00000,
204         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
205         .boot_params    = 0x10000100,
206         .map_io         = omap_perseus2_map_io,
207         .init_irq       = omap_perseus2_init_irq,
208         .init_machine   = omap_perseus2_init,
209         .timer          = &omap_timer,
210 MACHINE_END