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dda9cd289c
This adds support for the i2c busses on paz00. The 3rd bus is reserved for the nvec, which acts as master and i2c-tegra has not yet support for this kind of operation. The sound codec (alc5632) is connected to the first bus and will be added once the codec and glue driver is upstream. The thermal sensor (atd7461) is connected to dvc as usual, but will not be added now because i2c-tegra still misses probe support (needs I2C_FUNC_SMBUS_EMUL). Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Colin Cross <ccross@android.com>
156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
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* arch/arm/mach-tegra/board-paz00.c
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*
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* Copyright (C) 2011 Marc Dietrich <marvin24@gmx.de>
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*
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* Based on board-harmony.c
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* Copyright (C) 2010 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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/clk.h>
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#include <linux/dma-mapping.h>
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#include <linux/pda_power.h>
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#include <linux/io.h>
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#include <linux/i2c.h>
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#include <linux/i2c-tegra.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/time.h>
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#include <asm/setup.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 "board.h"
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#include "board-paz00.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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.membase = IO_ADDRESS(TEGRA_UARTD_BASE),
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.mapbase = TEGRA_UARTD_BASE,
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.irq = INT_UARTD,
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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 struct platform_device *paz00_devices[] __initdata = {
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&debug_uart,
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&tegra_sdhci_device1,
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&tegra_sdhci_device2,
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&tegra_sdhci_device4,
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};
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static struct tegra_i2c_platform_data paz00_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 paz00_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 paz00_dvc_platform_data = {
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.bus_clk_rate = 400000,
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};
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static void paz00_i2c_init(void)
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{
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tegra_i2c_device1.dev.platform_data = &paz00_i2c1_platform_data;
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tegra_i2c_device2.dev.platform_data = &paz00_i2c2_platform_data;
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tegra_i2c_device4.dev.platform_data = &paz00_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_device4);
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}
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static void __init tegra_paz00_fixup(struct machine_desc *desc,
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struct tag *tags, char **cmdline, struct meminfo *mi)
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{
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mi->nr_banks = 1;
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mi->bank[0].start = PHYS_OFFSET;
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mi->bank[0].size = 448 * SZ_1M;
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}
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static __initdata struct tegra_clk_init_table paz00_clk_init_table[] = {
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/* name parent rate enabled */
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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_sdhci_platform_data sdhci_pdata1 = {
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.cd_gpio = TEGRA_GPIO_SD1_CD,
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.wp_gpio = TEGRA_GPIO_SD1_WP,
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.power_gpio = TEGRA_GPIO_SD1_POWER,
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};
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static struct tegra_sdhci_platform_data sdhci_pdata2 = {
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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_pdata4 = {
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.cd_gpio = TEGRA_GPIO_SD4_CD,
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.wp_gpio = TEGRA_GPIO_SD4_WP,
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.power_gpio = TEGRA_GPIO_SD4_POWER,
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.is_8bit = 1,
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};
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static void __init tegra_paz00_init(void)
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{
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tegra_clk_init_from_table(paz00_clk_init_table);
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paz00_pinmux_init();
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tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
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tegra_sdhci_device2.dev.platform_data = &sdhci_pdata2;
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tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
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platform_add_devices(paz00_devices, ARRAY_SIZE(paz00_devices));
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paz00_i2c_init();
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}
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MACHINE_START(PAZ00, "paz00")
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.boot_params = 0x00000100,
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.fixup = tegra_paz00_fixup,
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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_paz00_init,
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MACHINE_END
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