07555c9880
The following patch enables SMC911x support to work on the OMAP LDP board. Although the SMC911x driver will eventually be obsoleted, the smsc911x patches are rather invasive for the -rc kernels. Rather than risk destablising smsc911x, this simpler patch is preferred to allow the network interface to work. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David S. Miller <davem@davemloft.net>
181 lines
4 KiB
C
181 lines
4 KiB
C
/*
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* linux/arch/arm/mach-omap2/board-ldp.c
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*
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* Copyright (C) 2008 Texas Instruments Inc.
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* Nishant Kamat <nskamat@ti.com>
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*
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* Modified from mach-omap2/board-3430sdp.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/workqueue.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/i2c/twl4030.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/board-ldp.h>
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#include <mach/mcspi.h>
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#include <mach/gpio.h>
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#include <mach/board.h>
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#include <mach/common.h>
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#include <mach/gpmc.h>
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#include <asm/io.h>
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#include <asm/delay.h>
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#include <mach/control.h>
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#include "mmc-twl4030.h"
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#define SDP3430_SMC91X_CS 3
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static struct resource ldp_smc911x_resources[] = {
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[0] = {
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.start = OMAP34XX_ETHR_START,
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.end = OMAP34XX_ETHR_START + SZ_4K,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = 0,
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.end = 0,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct platform_device ldp_smc911x_device = {
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.name = "smc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(ldp_smc911x_resources),
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.resource = ldp_smc911x_resources,
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};
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static struct platform_device *ldp_devices[] __initdata = {
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&ldp_smc911x_device,
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};
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static inline void __init ldp_init_smc911x(void)
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{
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int eth_cs;
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unsigned long cs_mem_base;
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int eth_gpio = 0;
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eth_cs = LDP_SMC911X_CS;
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if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
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printk(KERN_ERR "Failed to request GPMC mem for smc911x\n");
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return;
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}
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ldp_smc911x_resources[0].start = cs_mem_base + 0x0;
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ldp_smc911x_resources[0].end = cs_mem_base + 0xff;
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udelay(100);
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eth_gpio = LDP_SMC911X_GPIO;
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ldp_smc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
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if (gpio_request(eth_gpio, "smc911x irq") < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
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eth_gpio);
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return;
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}
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gpio_direction_input(eth_gpio);
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}
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static void __init omap_ldp_init_irq(void)
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{
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omap2_init_common_hw();
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omap_init_irq();
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omap_gpio_init();
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ldp_init_smc911x();
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}
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static struct omap_uart_config ldp_uart_config __initdata = {
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.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
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};
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static struct omap_board_config_kernel ldp_config[] __initdata = {
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{ OMAP_TAG_UART, &ldp_uart_config },
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};
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static struct twl4030_gpio_platform_data ldp_gpio_data = {
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.gpio_base = OMAP_MAX_GPIO_LINES,
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.irq_base = TWL4030_GPIO_IRQ_BASE,
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.irq_end = TWL4030_GPIO_IRQ_END,
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};
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static struct twl4030_platform_data ldp_twldata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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/* platform_data for children goes here */
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.gpio = &ldp_gpio_data,
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};
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static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
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{
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I2C_BOARD_INFO("twl4030", 0x48),
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.flags = I2C_CLIENT_WAKE,
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.irq = INT_34XX_SYS_NIRQ,
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.platform_data = &ldp_twldata,
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},
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};
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static int __init omap_i2c_init(void)
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{
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omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
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ARRAY_SIZE(ldp_i2c_boardinfo));
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omap_register_i2c_bus(2, 400, NULL, 0);
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omap_register_i2c_bus(3, 400, NULL, 0);
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return 0;
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}
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static struct twl4030_hsmmc_info mmc[] __initdata = {
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{
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.mmc = 1,
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.wires = 4,
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.gpio_cd = -EINVAL,
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.gpio_wp = -EINVAL,
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},
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{} /* Terminator */
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};
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static void __init omap_ldp_init(void)
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{
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omap_i2c_init();
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platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
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omap_board_config = ldp_config;
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omap_board_config_size = ARRAY_SIZE(ldp_config);
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omap_serial_init();
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twl4030_mmc_init(mmc);
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}
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static void __init omap_ldp_map_io(void)
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{
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omap2_set_globals_343x();
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omap2_map_common_io();
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}
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MACHINE_START(OMAP_LDP, "OMAP LDP board")
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = omap_ldp_map_io,
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.init_irq = omap_ldp_init_irq,
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.init_machine = omap_ldp_init,
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.timer = &omap_timer,
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MACHINE_END
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