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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 2009-05-28 14:04:04 -07:00 committed by Tony Lindgren
parent f52eeee83d
commit 577145f454
4 changed files with 277 additions and 1 deletions
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4
arch/arm/mach-omap2/Kconfig
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@ -67,3 +67,7 @@ config MACH_OMAP_3430SDP
config MACH_NOKIA_RX51
bool "Nokia RX-51 board"
depends on ARCH_OMAP3 && ARCH_OMAP34XX
config MACH_OMAP_ZOOM2
bool "OMAP3 Zoom2 board"
depends on ARCH_OMAP3 && ARCH_OMAP34XX

4
arch/arm/mach-omap2/Makefile
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@ -53,7 +53,9 @@ obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \
obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \
board-rx51-peripherals.o \
mmc-twl4030.o
obj-$(CONFIG_MACH_OMAP_ZOOM2) += board-zoom2.o \
mmc-twl4030.o \
board-zoom-debugboard.o
# Platform specific device init code
ifeq ($(CONFIG_USB_MUSB_SOC),y)
obj-y += usb-musb.o

160
arch/arm/mach-omap2/board-zoom-debugboard.c Normal file
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@ -0,0 +1,160 @@
/*
* Copyright (C) 2009 Texas Instruments Inc.
* Mikkel Christensen <mlc@ti.com>
*
* 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/gpio.h>
#include <linux/serial_8250.h>
#include <linux/smsc911x.h>
#include <mach/gpmc.h>
#define ZOOM2_SMSC911X_CS 7
#define ZOOM2_SMSC911X_GPIO 158
#define ZOOM2_QUADUART_CS 3
#define ZOOM2_QUADUART_GPIO 102
#define QUART_CLK 1843200
#define DEBUG_BASE 0x08000000
#define ZOOM2_ETHR_START DEBUG_BASE
static struct resource zoom2_smsc911x_resources[] = {
[0] = {
.start = ZOOM2_ETHR_START,
.end = ZOOM2_ETHR_START + SZ_4K,
.flags = IORESOURCE_MEM,
},
[1] = {
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct smsc911x_platform_config zoom2_smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device zoom2_smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
.resource = zoom2_smsc911x_resources,
.dev = {
.platform_data = &zoom2_smsc911x_config,
},
};
static inline void __init zoom2_init_smsc911x(void)
{
int eth_cs;
unsigned long cs_mem_base;
int eth_gpio = 0;
eth_cs = ZOOM2_SMSC911X_CS;
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
return;
}
zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;
eth_gpio = ZOOM2_SMSC911X_GPIO;
zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
eth_gpio);
return;
}
gpio_direction_input(eth_gpio);
}
static struct plat_serial8250_port serial_platform_data[] = {
{
.mapbase = 0x10000000,
.irq = OMAP_GPIO_IRQ(102),
.flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = QUART_CLK,
}, {
.flags = 0
}
};
static struct platform_device zoom2_debugboard_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = serial_platform_data,
},
};
static inline void __init zoom2_init_quaduart(void)
{
int quart_cs;
unsigned long cs_mem_base;
int quart_gpio = 0;
quart_cs = ZOOM2_QUADUART_CS;
if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem"
"for Quad UART(TL16CP754C)\n");
return;
}
quart_gpio = ZOOM2_QUADUART_GPIO;
if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
quart_gpio);
return;
}
gpio_direction_input(quart_gpio);
}
static inline int omap_zoom2_debugboard_detect(void)
{
int debug_board_detect = 0;
debug_board_detect = ZOOM2_SMSC911X_GPIO;
if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
"board detect\n", debug_board_detect);
return 0;
}
gpio_direction_input(debug_board_detect);
if (!gpio_get_value(debug_board_detect)) {
gpio_free(debug_board_detect);
return 0;
}
return 1;
}
static struct platform_device *zoom2_devices[] __initdata = {
&zoom2_smsc911x_device,
&zoom2_debugboard_serial_device,
};
int __init omap_zoom2_debugboard_init(void)
{
if (!omap_zoom2_debugboard_detect())
return 0;
zoom2_init_smsc911x();
zoom2_init_quaduart();
return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
}

110
arch/arm/mach-omap2/board-zoom2.c Normal file
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@ -0,0 +1,110 @@
/*
* Copyright (C) 2009 Texas Instruments Inc.
* Mikkel Christensen <mlc@ti.com>
*
* Modified from mach-omap2/board-ldp.c
*
* 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/gpio.h>
#include <linux/i2c/twl4030.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
#include <mach/usb.h>
#include "mmc-twl4030.h"
static void __init omap_zoom2_init_irq(void)
{
omap2_init_common_hw(NULL);
omap_init_irq();
omap_gpio_init();
}
static struct omap_uart_config zoom2_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};
static struct omap_board_config_kernel zoom2_config[] __initdata = {
{ OMAP_TAG_UART, &zoom2_uart_config },
};
static struct twl4030_gpio_platform_data zoom2_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 zoom2_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
/* platform_data for children goes here */
.gpio = &zoom2_gpio_data,
};
static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = {
{
I2C_BOARD_INFO("twl4030", 0x48),
.flags = I2C_CLIENT_WAKE,
.irq = INT_34XX_SYS_NIRQ,
.platform_data = &zoom2_twldata,
},
};
static int __init omap_i2c_init(void)
{
omap_register_i2c_bus(1, 2600, zoom2_i2c_boardinfo,
ARRAY_SIZE(zoom2_i2c_boardinfo));
omap_register_i2c_bus(2, 400, NULL, 0);
omap_register_i2c_bus(3, 400, NULL, 0);
return 0;
}
static struct twl4030_hsmmc_info mmc[] __initdata = {
{
.mmc = 1,
.wires = 4,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
extern int __init omap_zoom2_debugboard_init(void);
static void __init omap_zoom2_init(void)
{
omap_i2c_init();
omap_board_config = zoom2_config;
omap_board_config_size = ARRAY_SIZE(zoom2_config);
omap_serial_init();
omap_zoom2_debugboard_init();
twl4030_mmc_init(mmc);
usb_musb_init();
}
static void __init omap_zoom2_map_io(void)
{
omap2_set_globals_343x();
omap2_map_common_io();
}
MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
.phys_io = 0x48000000,
.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap_zoom2_map_io,
.init_irq = omap_zoom2_init_irq,
.init_machine = omap_zoom2_init,
.timer = &omap_timer,
MACHINE_END