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https://github.com/edk2-porting/linux-next.git
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f9a795af4d
Register the base i2c devices on seaboard. A few more are pending, but it's a start. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Stephen Warren <swarren@nvidia.com>
251 lines
6.3 KiB
C
251 lines
6.3 KiB
C
/*
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* Copyright (c) 2010, 2011 NVIDIA Corporation.
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* Copyright (C) 2010, 2011 Google, Inc.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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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/serial_8250.h>
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#include <linux/i2c.h>
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#include <linux/i2c-tegra.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <mach/iomap.h>
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#include <mach/irqs.h>
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#include <mach/sdhci.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include "board.h"
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#include "board-seaboard.h"
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#include "clock.h"
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#include "devices.h"
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#include "gpio-names.h"
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static struct plat_serial8250_port debug_uart_platform_data[] = {
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{
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/* Memory and IRQ filled in before registration */
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.flags = UPF_BOOT_AUTOCONF,
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.iotype = UPIO_MEM,
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.regshift = 2,
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.uartclk = 216000000,
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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 debug_uart = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = debug_uart_platform_data,
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},
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};
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static __initdata struct tegra_clk_init_table seaboard_clk_init_table[] = {
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/* name parent rate enabled */
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{ "uartb", "pll_p", 216000000, true},
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{ "uartd", "pll_p", 216000000, true},
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{ NULL, NULL, 0, 0},
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};
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static struct tegra_i2c_platform_data seaboard_i2c1_platform_data = {
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.bus_clk_rate = 400000.
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};
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static struct tegra_i2c_platform_data seaboard_i2c2_platform_data = {
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.bus_clk_rate = 400000,
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};
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static struct tegra_i2c_platform_data seaboard_i2c3_platform_data = {
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.bus_clk_rate = 400000,
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};
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static struct tegra_i2c_platform_data seaboard_dvc_platform_data = {
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.bus_clk_rate = 400000,
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};
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static struct gpio_keys_button seaboard_gpio_keys_buttons[] = {
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{
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.code = SW_LID,
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.gpio = TEGRA_GPIO_LIDSWITCH,
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.active_low = 0,
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.desc = "Lid",
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.type = EV_SW,
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.wakeup = 1,
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.debounce_interval = 1,
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},
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{
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.code = KEY_POWER,
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.gpio = TEGRA_GPIO_POWERKEY,
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.active_low = 1,
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.desc = "Power",
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.type = EV_KEY,
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data seaboard_gpio_keys = {
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.buttons = seaboard_gpio_keys_buttons,
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.nbuttons = ARRAY_SIZE(seaboard_gpio_keys_buttons),
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};
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static struct platform_device seaboard_gpio_keys_device = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &seaboard_gpio_keys,
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}
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};
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static struct tegra_sdhci_platform_data sdhci_pdata1 = {
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.cd_gpio = -1,
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.wp_gpio = -1,
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.power_gpio = -1,
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};
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static struct tegra_sdhci_platform_data sdhci_pdata3 = {
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.cd_gpio = TEGRA_GPIO_SD2_CD,
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.wp_gpio = TEGRA_GPIO_SD2_WP,
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.power_gpio = TEGRA_GPIO_SD2_POWER,
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};
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static struct tegra_sdhci_platform_data sdhci_pdata4 = {
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.cd_gpio = -1,
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.wp_gpio = -1,
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.power_gpio = -1,
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.is_8bit = 1,
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};
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static struct platform_device *seaboard_devices[] __initdata = {
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&debug_uart,
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&tegra_pmu_device,
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&tegra_sdhci_device1,
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&tegra_sdhci_device3,
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&tegra_sdhci_device4,
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&seaboard_gpio_keys_device,
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};
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static struct i2c_board_info __initdata isl29018_device = {
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I2C_BOARD_INFO("isl29018", 0x44),
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.irq = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_ISL29018_IRQ),
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};
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static struct i2c_board_info __initdata adt7461_device = {
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I2C_BOARD_INFO("adt7461", 0x4c),
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};
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static void __init seaboard_i2c_init(void)
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{
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gpio_request(TEGRA_GPIO_ISL29018_IRQ, "isl29018");
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gpio_direction_input(TEGRA_GPIO_ISL29018_IRQ);
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i2c_register_board_info(0, &isl29018_device, 1);
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i2c_register_board_info(4, &adt7461_device, 1);
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tegra_i2c_device1.dev.platform_data = &seaboard_i2c1_platform_data;
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tegra_i2c_device2.dev.platform_data = &seaboard_i2c2_platform_data;
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tegra_i2c_device3.dev.platform_data = &seaboard_i2c3_platform_data;
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tegra_i2c_device4.dev.platform_data = &seaboard_dvc_platform_data;
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platform_device_register(&tegra_i2c_device1);
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platform_device_register(&tegra_i2c_device2);
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platform_device_register(&tegra_i2c_device3);
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platform_device_register(&tegra_i2c_device4);
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}
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static void __init seaboard_common_init(void)
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{
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seaboard_pinmux_init();
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tegra_clk_init_from_table(seaboard_clk_init_table);
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tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
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tegra_sdhci_device3.dev.platform_data = &sdhci_pdata3;
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tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
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platform_add_devices(seaboard_devices, ARRAY_SIZE(seaboard_devices));
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}
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static void __init tegra_seaboard_init(void)
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{
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/* Seaboard uses UARTD for the debug port. */
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debug_uart_platform_data[0].membase = IO_ADDRESS(TEGRA_UARTD_BASE);
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debug_uart_platform_data[0].mapbase = TEGRA_UARTD_BASE;
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debug_uart_platform_data[0].irq = INT_UARTD;
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seaboard_common_init();
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seaboard_i2c_init();
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}
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static void __init tegra_kaen_init(void)
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{
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/* Kaen uses UARTB for the debug port. */
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debug_uart_platform_data[0].membase = IO_ADDRESS(TEGRA_UARTB_BASE);
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debug_uart_platform_data[0].mapbase = TEGRA_UARTB_BASE;
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debug_uart_platform_data[0].irq = INT_UARTB;
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seaboard_common_init();
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seaboard_i2c_init();
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}
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static void __init tegra_wario_init(void)
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{
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/* Wario uses UARTB for the debug port. */
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debug_uart_platform_data[0].membase = IO_ADDRESS(TEGRA_UARTB_BASE);
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debug_uart_platform_data[0].mapbase = TEGRA_UARTB_BASE;
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debug_uart_platform_data[0].irq = INT_UARTB;
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seaboard_common_init();
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seaboard_i2c_init();
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}
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MACHINE_START(SEABOARD, "seaboard")
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.boot_params = 0x00000100,
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.map_io = tegra_map_common_io,
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.init_early = tegra_init_early,
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.init_irq = tegra_init_irq,
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.timer = &tegra_timer,
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.init_machine = tegra_seaboard_init,
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MACHINE_END
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MACHINE_START(KAEN, "kaen")
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.boot_params = 0x00000100,
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.map_io = tegra_map_common_io,
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.init_early = tegra_init_early,
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.init_irq = tegra_init_irq,
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.timer = &tegra_timer,
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.init_machine = tegra_kaen_init,
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MACHINE_END
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MACHINE_START(WARIO, "wario")
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.boot_params = 0x00000100,
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.map_io = tegra_map_common_io,
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.init_early = tegra_init_early,
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.init_irq = tegra_init_irq,
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.timer = &tegra_timer,
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.init_machine = tegra_wario_init,
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MACHINE_END
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