ARM: OMAP3: Add support for OMAP3 Zoom2 board
This patch creates the minimal OMAP3 Zoom2 board support. Signed-off-by: Mikkel Christensen <mlc@ti.com> Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Vikram Pandita
Tony Lindgren
parent
f52eeee83d
commit
577145f454
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@ -67,3 +67,7 @@ config MACH_OMAP_3430SDP
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config MACH_NOKIA_RX51
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bool "Nokia RX-51 board"
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depends on ARCH_OMAP3 && ARCH_OMAP34XX
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config MACH_OMAP_ZOOM2
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bool "OMAP3 Zoom2 board"
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depends on ARCH_OMAP3 && ARCH_OMAP34XX
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@ -53,7 +53,9 @@ obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \
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obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \
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board-rx51-peripherals.o \
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mmc-twl4030.o
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obj-$(CONFIG_MACH_OMAP_ZOOM2) += board-zoom2.o \
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mmc-twl4030.o \
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board-zoom-debugboard.o
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# Platform specific device init code
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ifeq ($(CONFIG_USB_MUSB_SOC),y)
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obj-y += usb-musb.o
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160
arch/arm/mach-omap2/board-zoom-debugboard.c
Normal file
160
arch/arm/mach-omap2/board-zoom-debugboard.c
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@ -0,0 +1,160 @@
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/*
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* Copyright (C) 2009 Texas Instruments Inc.
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* Mikkel Christensen <mlc@ti.com>
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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/gpio.h>
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#include <linux/serial_8250.h>
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#include <linux/smsc911x.h>
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#include <mach/gpmc.h>
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#define ZOOM2_SMSC911X_CS 7
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#define ZOOM2_SMSC911X_GPIO 158
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#define ZOOM2_QUADUART_CS 3
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#define ZOOM2_QUADUART_GPIO 102
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#define QUART_CLK 1843200
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#define DEBUG_BASE 0x08000000
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#define ZOOM2_ETHR_START DEBUG_BASE
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static struct resource zoom2_smsc911x_resources[] = {
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[0] = {
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.start = ZOOM2_ETHR_START,
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.end = ZOOM2_ETHR_START + SZ_4K,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct smsc911x_platform_config zoom2_smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT,
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.phy_interface = PHY_INTERFACE_MODE_MII,
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};
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static struct platform_device zoom2_smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
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.resource = zoom2_smsc911x_resources,
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.dev = {
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.platform_data = &zoom2_smsc911x_config,
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},
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};
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static inline void __init zoom2_init_smsc911x(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 = ZOOM2_SMSC911X_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 smsc911x\n");
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return;
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}
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zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
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zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;
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eth_gpio = ZOOM2_SMSC911X_GPIO;
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zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
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if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for smsc911x 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 struct plat_serial8250_port serial_platform_data[] = {
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{
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.mapbase = 0x10000000,
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.irq = OMAP_GPIO_IRQ(102),
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.flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
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.iotype = UPIO_MEM,
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.regshift = 1,
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.uartclk = QUART_CLK,
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}, {
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.flags = 0
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}
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};
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static struct platform_device zoom2_debugboard_serial_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM1,
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.dev = {
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.platform_data = serial_platform_data,
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},
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};
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static inline void __init zoom2_init_quaduart(void)
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{
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int quart_cs;
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unsigned long cs_mem_base;
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int quart_gpio = 0;
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quart_cs = ZOOM2_QUADUART_CS;
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if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
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printk(KERN_ERR "Failed to request GPMC mem"
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"for Quad UART(TL16CP754C)\n");
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return;
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}
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quart_gpio = ZOOM2_QUADUART_GPIO;
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if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
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quart_gpio);
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return;
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}
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gpio_direction_input(quart_gpio);
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}
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static inline int omap_zoom2_debugboard_detect(void)
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{
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int debug_board_detect = 0;
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debug_board_detect = ZOOM2_SMSC911X_GPIO;
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if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
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"board detect\n", debug_board_detect);
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return 0;
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}
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gpio_direction_input(debug_board_detect);
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if (!gpio_get_value(debug_board_detect)) {
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gpio_free(debug_board_detect);
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return 0;
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}
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return 1;
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}
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static struct platform_device *zoom2_devices[] __initdata = {
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&zoom2_smsc911x_device,
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&zoom2_debugboard_serial_device,
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};
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int __init omap_zoom2_debugboard_init(void)
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{
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if (!omap_zoom2_debugboard_detect())
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return 0;
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zoom2_init_smsc911x();
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zoom2_init_quaduart();
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return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
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}
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110
arch/arm/mach-omap2/board-zoom2.c
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110
arch/arm/mach-omap2/board-zoom2.c
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@ -0,0 +1,110 @@
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/*
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* Copyright (C) 2009 Texas Instruments Inc.
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* Mikkel Christensen <mlc@ti.com>
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*
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* Modified from mach-omap2/board-ldp.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/gpio.h>
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#include <linux/i2c/twl4030.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/common.h>
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#include <mach/usb.h>
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#include "mmc-twl4030.h"
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static void __init omap_zoom2_init_irq(void)
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{
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omap2_init_common_hw(NULL);
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omap_init_irq();
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omap_gpio_init();
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}
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static struct omap_uart_config zoom2_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 zoom2_config[] __initdata = {
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{ OMAP_TAG_UART, &zoom2_uart_config },
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};
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static struct twl4030_gpio_platform_data zoom2_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 zoom2_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 = &zoom2_gpio_data,
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};
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static struct i2c_board_info __initdata zoom2_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 = &zoom2_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, zoom2_i2c_boardinfo,
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ARRAY_SIZE(zoom2_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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extern int __init omap_zoom2_debugboard_init(void);
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static void __init omap_zoom2_init(void)
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{
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omap_i2c_init();
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omap_board_config = zoom2_config;
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omap_board_config_size = ARRAY_SIZE(zoom2_config);
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omap_serial_init();
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omap_zoom2_debugboard_init();
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twl4030_mmc_init(mmc);
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usb_musb_init();
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}
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static void __init omap_zoom2_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_ZOOM2, "OMAP Zoom2 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_zoom2_map_io,
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.init_irq = omap_zoom2_init_irq,
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.init_machine = omap_zoom2_init,
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.timer = &omap_timer,
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MACHINE_END
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