mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-04-21 12:27:27 +03:00
1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
356 lines
8.2 KiB
C
356 lines
8.2 KiB
C
/*
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* arch/ubicom32/mach-ip7k/board-ip7160rgw.c
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* Platform initialization for ip7160rgw board.
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/leds.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/spi/spi.h>
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#include <asm/board.h>
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#include <asm/machdep.h>
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#include <asm/ubicom32input.h>
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#ifdef CONFIG_SERIAL_UBI32_SERDES
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#include <asm/ubicom32suart.h>
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#endif
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#include <asm/ubicom32-spi-gpio.h>
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#include <asm/switch-dev.h>
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#ifdef CONFIG_IP7160RGWLCD
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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/*
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* LCD Adapter board 8007-092x support
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*
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* Touch controller
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*
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* Connected via I2C bus, interrupt on PA6
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*/
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#include <linux/i2c/tsc2007.h>
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/*
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* ip7160rgwlcd_tsc2007_exit_platform_hw
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*/
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static void ip7160rgwlcd_tsc2007_exit_platform_hw(void)
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{
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UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 17);
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gpio_free(GPIO_RA_5);
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}
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/*
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* ip7160rgwlcd_tsc2007_init_platform_hw
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*/
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static int ip7160rgwlcd_tsc2007_init_platform_hw(void)
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{
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int res = gpio_request(GPIO_RA_5, "TSC2007_IRQ");
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if (res) {
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return res;
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}
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UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 17);
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UBICOM32_IO_PORT(RA)->ctl0 |= (0x02 << 17);
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return 0;
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}
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/*
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* ip7160rgwlcd_tsc2007_get_pendown_state
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*/
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static int ip7160rgwlcd_tsc2007_get_pendown_state(void)
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{
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return !gpio_get_value(GPIO_RA_5);
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}
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static struct tsc2007_platform_data ip7160rgwlcd_tsc2007_data = {
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.model = 2007,
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.x_plate_ohms = 350,
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.get_pendown_state = ip7160rgwlcd_tsc2007_get_pendown_state,
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.init_platform_hw = ip7160rgwlcd_tsc2007_init_platform_hw,
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.exit_platform_hw = ip7160rgwlcd_tsc2007_exit_platform_hw,
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};
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/******************************************************************************
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* I2C bus on the board, SDA PI14, SCL PI13
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*/
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static struct i2c_gpio_platform_data ip7160rgwlcd_i2c_data = {
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.sda_pin = GPIO_RI_14,
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.scl_pin = GPIO_RI_13,
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.sda_is_open_drain = 0,
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.scl_is_open_drain = 0,
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.udelay = 50,
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};
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static struct platform_device ip7160rgwlcd_i2c_device = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = &ip7160rgwlcd_i2c_data,
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},
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};
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static struct i2c_board_info __initdata ip7160rgwlcd_i2c_board_info[] = {
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{
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.type = "tsc2007",
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.addr = 0x48,
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.irq = 45, // RA5
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.platform_data = &ip7160rgwlcd_tsc2007_data,
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},
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};
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#endif
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/*
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* SPI bus over GPIO for Gigabit Ethernet Switch
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* U58:
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* MOSI PE0
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* MISO PE1
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* CLK PE3
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* CS PE2
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*/
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static struct ubicom32_spi_gpio_platform_data ip7160rgw_spi_gpio_data = {
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.pin_mosi = GPIO_RE_0,
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.pin_miso = GPIO_RE_1,
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.pin_clk = GPIO_RE_3,
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.bus_num = 0, // We'll call this SPI bus 0
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.num_chipselect = 1, // only one device on this SPI bus
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.clk_default = 1,
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};
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static struct platform_device ip7160rgw_spi_gpio_device = {
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.name = "ubicom32-spi-gpio",
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.id = 0,
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.dev = {
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.platform_data = &ip7160rgw_spi_gpio_data,
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},
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};
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static struct ubicom32_spi_gpio_controller_data ip7160rgw_bcm539x_controller_data = {
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.pin_cs = GPIO_RE_2,
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};
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static struct switch_core_platform_data ip7160rgw_bcm539x_platform_data = {
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.flags = SWITCH_DEV_FLAG_HW_RESET,
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.pin_reset = GPIO_RE_4,
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.name = "bcm539x",
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};
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static struct spi_board_info ip7160rgw_spi_board_info[] = {
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{
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.modalias = "bcm539x-spi",
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 2000000,
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.platform_data = &ip7160rgw_bcm539x_platform_data,
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.controller_data = &ip7160rgw_bcm539x_controller_data,
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.mode = SPI_MODE_3,
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}
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};
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/*
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* LEDs
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*
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* WLAN1 PD0 (PWM capable)
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* WLAN2 PD1
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* USB2.0 PD2
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* Status PD3
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* WPS PD4
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*
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* TODO: check triggers, are they generic?
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*/
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static struct gpio_led ip7160rgw_gpio_leds[] = {
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{
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.name = "d53:green:WLAN1",
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.default_trigger = "WLAN1",
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.gpio = GPIO_RD_0,
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.active_low = 1,
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},
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{
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.name = "d54:green:WLAN2",
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.default_trigger = "WLAN2",
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.gpio = GPIO_RD_1,
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.active_low = 1,
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},
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{
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.name = "d55:green:USB",
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.default_trigger = "USB",
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.gpio = GPIO_RD_2,
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.active_low = 1,
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},
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{
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.name = "d56:green:Status",
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.default_trigger = "Status",
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.gpio = GPIO_RD_3,
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.active_low = 1,
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},
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{
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.name = "d57:green:WPS",
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.default_trigger = "WPS",
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.gpio = GPIO_RD_4,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data ip7160rgw_gpio_led_platform_data = {
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.num_leds = 5,
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.leds = ip7160rgw_gpio_leds,
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};
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static struct platform_device ip7160rgw_gpio_leds_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &ip7160rgw_gpio_led_platform_data,
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},
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};
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/*
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* Use ubicom32input driver to monitor the various pushbuttons on this board.
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*
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* WPS PD5
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* FACT_DEFAULT PD6
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*
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* TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
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*/
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static struct ubicom32input_button ip7160rgw_ubicom32input_buttons[] = {
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{
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.type = EV_KEY,
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.code = KEY_FN_F1,
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.gpio = GPIO_RD_5,
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.desc = "WPS",
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.active_low = 1,
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},
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{
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.type = EV_KEY,
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.code = KEY_FN_F2,
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.gpio = GPIO_RD_6,
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.desc = "Factory Default",
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.active_low = 1,
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},
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};
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static struct ubicom32input_platform_data ip7160rgw_ubicom32input_data = {
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.buttons = ip7160rgw_ubicom32input_buttons,
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.nbuttons = ARRAY_SIZE(ip7160rgw_ubicom32input_buttons),
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};
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static struct platform_device ip7160rgw_ubicom32input_device = {
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.name = "ubicom32input",
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.id = -1,
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.dev = {
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.platform_data = &ip7160rgw_ubicom32input_data,
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},
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};
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#ifdef CONFIG_SERIAL_UBI32_SERDES
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static struct resource ip7160rgw_ubicom32_suart_resources[] = {
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{
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.start = RE,
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.end = RE,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = PORT_OTHER_INT(RE),
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.end = PORT_OTHER_INT(RE),
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = 250000000,
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.end = 250000000,
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.flags = UBICOM32_SUART_IORESOURCE_CLOCK,
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},
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};
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static struct platform_device ip7160rgw_ubicom32_suart_device = {
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.name = "ubicom32suart",
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.id = -1,
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.num_resources = ARRAY_SIZE(ip7160rgw_ubicom32_suart_resources),
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.resource = ip7160rgw_ubicom32_suart_resources,
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};
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#endif
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/*
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* List of all devices in our system
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*/
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static struct platform_device *ip7160rgw_devices[] __initdata = {
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#ifdef CONFIG_SERIAL_UBI32_SERDES
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&ip7160rgw_ubicom32_suart_device,
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#endif
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&ip7160rgw_ubicom32input_device,
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&ip7160rgw_gpio_leds_device,
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&ip7160rgw_spi_gpio_device,
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#ifdef CONFIG_IP7160RGWLCD
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&ip7160rgwlcd_i2c_device,
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#endif
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};
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/*
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* ip7160rgw_init
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* Called to add the devices which we have on this board
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*/
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static int __init ip7160rgw_init(void)
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{
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board_init();
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/*
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* Rev 1.2 boards have spi in a different place than 1.1/1.0
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*/
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if (strcmp(board_get_revision(), "1.2") == 0) {
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ip7160rgw_spi_gpio_data.pin_mosi = GPIO_RD_7;
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}
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ubi_gpio_init();
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/*
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* Reserve switch SPI CS on behalf on switch driver
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*/
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if (gpio_request(ip7160rgw_bcm539x_controller_data.pin_cs, "switch-bcm539x-cs")) {
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printk(KERN_WARNING "Could not request cs of switch SPI I/F\n");
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return -EIO;
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}
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gpio_direction_output(ip7160rgw_bcm539x_controller_data.pin_cs, 1);
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printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
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platform_add_devices(ip7160rgw_devices, ARRAY_SIZE(ip7160rgw_devices));
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printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
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spi_register_board_info(ip7160rgw_spi_board_info, ARRAY_SIZE(ip7160rgw_spi_board_info));
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#ifdef CONFIG_IP7160RGWLCD
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printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
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i2c_register_board_info(0, ip7160rgwlcd_i2c_board_info, ARRAY_SIZE(ip7160rgwlcd_i2c_board_info));
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printk(KERN_INFO "IP7160 RGW + LCD\n");
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#else
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printk(KERN_INFO "IP7160 RGW\n");
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#endif
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return 0;
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}
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arch_initcall(ip7160rgw_init);
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