ARM: OMAP3: Add omap3 EVM support
Add omap3 EVM support Signed-off-by: Syed Mohammed Khasim <khasim@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Syed Mohammed Khasim
Tony Lindgren
Родитель
b969a2873d
Коммит
53c5ec31e7
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@ -56,6 +56,10 @@ config MACH_OVERO
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bool "Gumstix Overo board"
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depends on ARCH_OMAP3 && ARCH_OMAP34XX
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config MACH_OMAP3EVM
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bool "OMAP 3530 EVM board"
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depends on ARCH_OMAP3 && ARCH_OMAP34XX
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config MACH_OMAP3_PANDORA
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bool "OMAP3 Pandora"
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depends on ARCH_OMAP3 && ARCH_OMAP34XX
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@ -45,6 +45,8 @@ obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o \
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mmc-twl4030.o
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obj-$(CONFIG_MACH_OVERO) += board-overo.o \
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mmc-twl4030.o
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obj-$(CONFIG_MACH_OMAP3EVM) += board-omap3evm.o \
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mmc-twl4030.o
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obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o \
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mmc-twl4030.o
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obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \
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@ -0,0 +1,329 @@
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/*
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* linux/arch/arm/mach-omap2/board-omap3evm.c
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*
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* Copyright (C) 2008 Texas Instruments
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*
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* Modified from mach-omap2/board-3430sdp.c
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*
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* Initial code: Syed Mohammed Khasim
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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/err.h>
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#include <linux/clk.h>
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#include <linux/gpio.h>
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#include <linux/input.h>
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#include <linux/leds.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.h>
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#include <mach/mux.h>
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#include <mach/usb.h>
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#include <mach/common.h>
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#include <mach/mcspi.h>
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#include <mach/keypad.h>
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#include "sdram-micron-mt46h32m32lf-6.h"
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#include "mmc-twl4030.h"
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#define OMAP3_EVM_TS_GPIO 175
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#define OMAP3EVM_ETHR_START 0x2c000000
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#define OMAP3EVM_ETHR_SIZE 1024
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#define OMAP3EVM_ETHR_GPIO_IRQ 176
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#define OMAP3EVM_SMC911X_CS 5
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static struct resource omap3evm_smc911x_resources[] = {
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[0] = {
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.start = OMAP3EVM_ETHR_START,
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.end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
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.end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device omap3evm_smc911x_device = {
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.name = "smc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(omap3evm_smc911x_resources),
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.resource = &omap3evm_smc911x_resources[0],
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};
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static inline void __init omap3evm_init_smc911x(void)
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{
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int eth_cs;
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struct clk *l3ck;
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unsigned int rate;
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eth_cs = OMAP3EVM_SMC911X_CS;
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l3ck = clk_get(NULL, "l3_ck");
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if (IS_ERR(l3ck))
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rate = 100000000;
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else
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rate = clk_get_rate(l3ck);
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if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
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OMAP3EVM_ETHR_GPIO_IRQ);
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return;
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}
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gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
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}
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static struct omap_uart_config omap3_evm_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 twl4030_hsmmc_info mmc[] = {
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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 = 63,
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},
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{} /* Terminator */
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};
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static struct gpio_led gpio_leds[] = {
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{
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.name = "omap3evm::ledb",
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/* normally not visible (board underside) */
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.default_trigger = "default-on",
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.gpio = -EINVAL, /* gets replaced */
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.active_low = true,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device leds_gpio = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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},
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};
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static int omap3evm_twl_gpio_setup(struct device *dev,
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unsigned gpio, unsigned ngpio)
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{
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/* gpio + 0 is "mmc0_cd" (input/IRQ) */
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omap_cfg_reg(L8_34XX_GPIO63);
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mmc[0].gpio_cd = gpio + 0;
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twl4030_mmc_init(mmc);
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/*
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* Most GPIOs are for USB OTG. Some are mostly sent to
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* the P2 connector; notably LEDA for the LCD backlight.
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*/
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/* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
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gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
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platform_device_register(&leds_gpio);
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return 0;
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}
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static struct twl4030_gpio_platform_data omap3evm_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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.use_leds = true,
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.setup = omap3evm_twl_gpio_setup,
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};
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static struct twl4030_usb_data omap3evm_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static int omap3evm_keymap[] = {
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KEY(0, 0, KEY_LEFT),
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KEY(0, 1, KEY_RIGHT),
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KEY(0, 2, KEY_A),
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KEY(0, 3, KEY_B),
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KEY(1, 0, KEY_DOWN),
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KEY(1, 1, KEY_UP),
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KEY(1, 2, KEY_E),
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KEY(1, 3, KEY_F),
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KEY(2, 0, KEY_ENTER),
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KEY(2, 1, KEY_I),
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KEY(2, 2, KEY_J),
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KEY(2, 3, KEY_K),
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KEY(3, 0, KEY_M),
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KEY(3, 1, KEY_N),
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KEY(3, 2, KEY_O),
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KEY(3, 3, KEY_P)
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};
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static struct twl4030_keypad_data omap3evm_kp_data = {
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.rows = 4,
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.cols = 4,
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.keymap = omap3evm_keymap,
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.keymapsize = ARRAY_SIZE(omap3evm_keymap),
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.rep = 1,
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};
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static struct twl4030_madc_platform_data omap3evm_madc_data = {
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.irq_line = 1,
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};
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static struct twl4030_platform_data omap3evm_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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.keypad = &omap3evm_kp_data,
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.madc = &omap3evm_madc_data,
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.usb = &omap3evm_usb_data,
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.gpio = &omap3evm_gpio_data,
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};
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static struct i2c_board_info __initdata omap3evm_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 = &omap3evm_twldata,
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},
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};
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static int __init omap3_evm_i2c_init(void)
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{
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omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
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ARRAY_SIZE(omap3evm_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 platform_device omap3_evm_lcd_device = {
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.name = "omap3evm_lcd",
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.id = -1,
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};
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static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static void ads7846_dev_init(void)
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{
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if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
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printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
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gpio_direction_input(OMAP3_EVM_TS_GPIO);
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omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
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omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
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}
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static int ads7846_get_pendown_state(void)
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{
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return !gpio_get_value(OMAP3_EVM_TS_GPIO);
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}
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struct ads7846_platform_data ads7846_config = {
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.x_max = 0x0fff,
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.y_max = 0x0fff,
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.x_plate_ohms = 180,
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.pressure_max = 255,
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.debounce_max = 10,
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.debounce_tol = 3,
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.debounce_rep = 1,
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.get_pendown_state = ads7846_get_pendown_state,
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.keep_vref_on = 1,
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.settle_delay_usecs = 150,
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};
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static struct omap2_mcspi_device_config ads7846_mcspi_config = {
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.turbo_mode = 0,
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.single_channel = 1, /* 0: slave, 1: master */
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};
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struct spi_board_info omap3evm_spi_board_info[] = {
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[0] = {
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.modalias = "ads7846",
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.bus_num = 1,
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.chip_select = 0,
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.max_speed_hz = 1500000,
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.controller_data = &ads7846_mcspi_config,
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.irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
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.platform_data = &ads7846_config,
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},
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};
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static void __init omap3_evm_init_irq(void)
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{
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omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
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omap_init_irq();
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omap_gpio_init();
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omap3evm_init_smc911x();
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}
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static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
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{ OMAP_TAG_UART, &omap3_evm_uart_config },
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{ OMAP_TAG_LCD, &omap3_evm_lcd_config },
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};
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static struct platform_device *omap3_evm_devices[] __initdata = {
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&omap3_evm_lcd_device,
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&omap3evm_smc911x_device,
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};
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static void __init omap3_evm_init(void)
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{
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omap3_evm_i2c_init();
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platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
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omap_board_config = omap3_evm_config;
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omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
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spi_register_board_info(omap3evm_spi_board_info,
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ARRAY_SIZE(omap3evm_spi_board_info));
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omap_serial_init();
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usb_musb_init();
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ads7846_dev_init();
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}
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static void __init omap3_evm_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(OMAP3EVM, "OMAP3 EVM")
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/* Maintainer: Syed Mohammed Khasim - Texas Instruments */
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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 = omap3_evm_map_io,
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.init_irq = omap3_evm_init_irq,
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.init_machine = omap3_evm_init,
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.timer = &omap_timer,
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MACHINE_END
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