/*
* nVidia Tegra device tree board support
*
* Copyright (C) 2010 Secret Lab Technologies, Ltd.
* Copyright (C) 2010 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_fdt.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/pda_power.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/i2c-tegra.h>
#include <asm/hardware/gic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/setup.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include "board.h"
#include "board-harmony.h"
#include "clock.h"
#include "devices.h"
struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra20-i2s.0", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra20-i2s.1", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra20-das", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
&tegra_ehci1_pdata),
OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
&tegra_ehci2_pdata),
OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
&tegra_ehci3_pdata),
OF_DEV_AUXDATA("nvidia,tegra20-apbdma", TEGRA_APB_DMA_BASE, "tegra-apbdma", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-pwm", TEGRA_PWFM_BASE, "tegra-pwm", NULL),
{}
};
static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
/* name parent rate enabled */
{ "uartd", "pll_p", 216000000, true },
{ "usbd", "clk_m", 12000000, false },
{ "usb2", "clk_m", 12000000, false },
{ "usb3", "clk_m", 12000000, false },
{ "pll_a", "pll_p_out1", 56448000, true },
{ "pll_a_out0", "pll_a", 11289600, true },
{ "cdev1", NULL, 0, true },
{ "i2s1", "pll_a_out0", 11289600, false},
{ "i2s2", "pll_a_out0", 11289600, false},
{ NULL, NULL, 0, 0},
};
static void __init tegra_dt_init(void)
{
tegra_clk_init_from_table(tegra_dt_clk_init_table);
/*
* Finished with the static registrations now; fill in the missing
* devices
*/
of_platform_populate(NULL, of_default_bus_match_table,
tegra20_auxdata_lookup, NULL);
}
#ifdef CONFIG_MACH_TRIMSLICE
static void __init trimslice_init(void)
{
int ret;
ret = tegra_pcie_init(true, true);
if (ret)
pr_err("tegra_pci_init() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_MACH_HARMONY
static void __init harmony_init(void)
{
int ret;
ret = harmony_regulator_init();
if (ret) {
pr_err("harmony_regulator_init() failed: %d\n", ret);
return;
}
ret = harmony_pcie_init();
if (ret)
pr_err("harmony_pcie_init() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_MACH_PAZ00
static void __init paz00_init(void)
{
tegra_paz00_wifikill_init();
}
#endif
static struct {
char *machine;
void (*init)(void);
} board_init_funcs[] = {
#ifdef CONFIG_MACH_TRIMSLICE
{ "compulab,trimslice", trimslice_init },
#endif
#ifdef CONFIG_MACH_HARMONY
{ "nvidia,harmony", harmony_init },
#endif
#ifdef CONFIG_MACH_PAZ00
{ "compal,paz00", paz00_init },
#endif
};
static void __init tegra_dt_init_late(void)
{
int i;
tegra_init_late();
for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
if (of_machine_is_compatible(board_init_funcs[i].machine)) {
board_init_funcs[i].init();
break;
}
}
}
static const char *tegra20_dt_board_compat[] = {
"nvidia,tegra20",
NULL
};
DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
.map_io = tegra_map_common_io,
.init_early = tegra20_init_early,
.init_irq = tegra_dt_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
.init_machine = tegra_dt_init,
.init_late = tegra_dt_init_late,
.restart = tegra_assert_system_reset,
.dt_compat = tegra20_dt_board_compat,
MACHINE_END
