277 lines
6.8 KiB
C
277 lines
6.8 KiB
C
/*
|
|
* linux/arch/arm/mach-omap2/board-2430sdp.c
|
|
*
|
|
* Copyright (C) 2006 Texas Instruments
|
|
*
|
|
* Modified from mach-omap2/board-generic.c
|
|
*
|
|
* Initial Code : Based on a patch from Komal Shah and Richard Woodruff
|
|
* Updated the Code for 2430 SDP : Syed Mohammed Khasim
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/i2c/twl4030.h>
|
|
#include <linux/err.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/flash.h>
|
|
|
|
#include <mach/gpio.h>
|
|
#include <mach/mux.h>
|
|
#include <mach/board.h>
|
|
#include <mach/common.h>
|
|
#include <mach/gpmc.h>
|
|
#include <mach/usb.h>
|
|
|
|
#include "mmc-twl4030.h"
|
|
|
|
#define SDP2430_CS0_BASE 0x04000000
|
|
#define SDP2430_FLASH_CS 0
|
|
#define SDP2430_SMC91X_CS 5
|
|
|
|
#define SDP2430_ETHR_GPIO_IRQ 149
|
|
|
|
static struct mtd_partition sdp2430_partitions[] = {
|
|
/* bootloader (U-Boot, etc) in first sector */
|
|
{
|
|
.name = "bootloader",
|
|
.offset = 0,
|
|
.size = SZ_256K,
|
|
.mask_flags = MTD_WRITEABLE, /* force read-only */
|
|
},
|
|
/* bootloader params in the next sector */
|
|
{
|
|
.name = "params",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = SZ_128K,
|
|
.mask_flags = 0,
|
|
},
|
|
/* kernel */
|
|
{
|
|
.name = "kernel",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = SZ_2M,
|
|
.mask_flags = 0
|
|
},
|
|
/* file system */
|
|
{
|
|
.name = "filesystem",
|
|
.offset = MTDPART_OFS_APPEND,
|
|
.size = MTDPART_SIZ_FULL,
|
|
.mask_flags = 0
|
|
}
|
|
};
|
|
|
|
static struct flash_platform_data sdp2430_flash_data = {
|
|
.map_name = "cfi_probe",
|
|
.width = 2,
|
|
.parts = sdp2430_partitions,
|
|
.nr_parts = ARRAY_SIZE(sdp2430_partitions),
|
|
};
|
|
|
|
static struct resource sdp2430_flash_resource = {
|
|
.start = SDP2430_CS0_BASE,
|
|
.end = SDP2430_CS0_BASE + SZ_64M - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device sdp2430_flash_device = {
|
|
.name = "omapflash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &sdp2430_flash_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &sdp2430_flash_resource,
|
|
};
|
|
|
|
static struct resource sdp2430_smc91x_resources[] = {
|
|
[0] = {
|
|
.start = SDP2430_CS0_BASE,
|
|
.end = SDP2430_CS0_BASE + SZ_64M - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
|
|
.end = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ),
|
|
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
|
|
},
|
|
};
|
|
|
|
static struct platform_device sdp2430_smc91x_device = {
|
|
.name = "smc91x",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
|
|
.resource = sdp2430_smc91x_resources,
|
|
};
|
|
|
|
static struct platform_device *sdp2430_devices[] __initdata = {
|
|
&sdp2430_smc91x_device,
|
|
&sdp2430_flash_device,
|
|
};
|
|
|
|
static inline void __init sdp2430_init_smc91x(void)
|
|
{
|
|
int eth_cs;
|
|
unsigned long cs_mem_base;
|
|
unsigned int rate;
|
|
struct clk *gpmc_fck;
|
|
|
|
eth_cs = SDP2430_SMC91X_CS;
|
|
|
|
gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
|
|
if (IS_ERR(gpmc_fck)) {
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
|
|
clk_enable(gpmc_fck);
|
|
rate = clk_get_rate(gpmc_fck);
|
|
|
|
/* Make sure CS1 timings are correct, for 2430 always muxed */
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
|
|
|
|
if (rate >= 160000000) {
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
|
|
} else if (rate >= 130000000) {
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
|
|
} else { /* rate = 100000000 */
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
|
|
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
|
|
}
|
|
|
|
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
|
|
printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
|
|
goto out;
|
|
}
|
|
|
|
sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
|
|
sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
|
|
udelay(100);
|
|
|
|
if (gpio_request(SDP2430_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
|
|
printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
|
|
SDP2430_ETHR_GPIO_IRQ);
|
|
gpmc_cs_free(eth_cs);
|
|
goto out;
|
|
}
|
|
gpio_direction_input(SDP2430_ETHR_GPIO_IRQ);
|
|
|
|
out:
|
|
clk_disable(gpmc_fck);
|
|
clk_put(gpmc_fck);
|
|
}
|
|
|
|
static void __init omap_2430sdp_init_irq(void)
|
|
{
|
|
omap2_init_common_hw(NULL);
|
|
omap_init_irq();
|
|
omap_gpio_init();
|
|
sdp2430_init_smc91x();
|
|
}
|
|
|
|
static struct omap_uart_config sdp2430_uart_config __initdata = {
|
|
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
|
|
};
|
|
|
|
static struct omap_board_config_kernel sdp2430_config[] = {
|
|
{OMAP_TAG_UART, &sdp2430_uart_config},
|
|
};
|
|
|
|
|
|
static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
|
|
.gpio_base = OMAP_MAX_GPIO_LINES,
|
|
.irq_base = TWL4030_GPIO_IRQ_BASE,
|
|
.irq_end = TWL4030_GPIO_IRQ_END,
|
|
};
|
|
|
|
static struct twl4030_platform_data sdp2430_twldata = {
|
|
.irq_base = TWL4030_IRQ_BASE,
|
|
.irq_end = TWL4030_IRQ_END,
|
|
|
|
/* platform_data for children goes here */
|
|
.gpio = &sdp2430_gpio_data,
|
|
};
|
|
|
|
static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
|
|
{
|
|
I2C_BOARD_INFO("twl4030", 0x48),
|
|
.flags = I2C_CLIENT_WAKE,
|
|
.irq = INT_24XX_SYS_NIRQ,
|
|
.platform_data = &sdp2430_twldata,
|
|
},
|
|
};
|
|
|
|
static int __init omap2430_i2c_init(void)
|
|
{
|
|
omap_register_i2c_bus(1, 400, NULL, 0);
|
|
omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
|
|
ARRAY_SIZE(sdp2430_i2c_boardinfo));
|
|
return 0;
|
|
}
|
|
|
|
static struct twl4030_hsmmc_info mmc[] __initdata = {
|
|
{
|
|
.mmc = 1,
|
|
.wires = 4,
|
|
.gpio_cd = -EINVAL,
|
|
.gpio_wp = -EINVAL,
|
|
.ext_clock = 1,
|
|
},
|
|
{} /* Terminator */
|
|
};
|
|
|
|
static void __init omap_2430sdp_init(void)
|
|
{
|
|
omap2430_i2c_init();
|
|
|
|
platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
|
|
omap_board_config = sdp2430_config;
|
|
omap_board_config_size = ARRAY_SIZE(sdp2430_config);
|
|
omap_serial_init();
|
|
twl4030_mmc_init(mmc);
|
|
usb_musb_init();
|
|
}
|
|
|
|
static void __init omap_2430sdp_map_io(void)
|
|
{
|
|
omap2_set_globals_243x();
|
|
omap2_map_common_io();
|
|
}
|
|
|
|
MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
|
|
/* Maintainer: Syed Khasim - Texas Instruments Inc */
|
|
.phys_io = 0x48000000,
|
|
.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
|
|
.boot_params = 0x80000100,
|
|
.map_io = omap_2430sdp_map_io,
|
|
.init_irq = omap_2430sdp_init_irq,
|
|
.init_machine = omap_2430sdp_init,
|
|
.timer = &omap_timer,
|
|
MACHINE_END
|