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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c5444f3962
board-dt-tegra*.c should support any board using Tegra when booted using device tree. Instead of explicitly listing all the supported boards, which requires a kernel change for each new board, list the supported SoC model instead. Note that the board files do currently have explicit support for setting up each board's pinmux. However, it's fairly likely that at least the basic devices on any new board will work just fine as set up by the boot- loader, and the pinmux data should be moving into device tree soon anyway. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
148 lines
4.8 KiB
C
148 lines
4.8 KiB
C
/*
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* nVidia Tegra device tree board support
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*
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* Copyright (C) 2010 Secret Lab Technologies, Ltd.
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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/irqdomain.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_fdt.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.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/hardware/gic.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 <asm/hardware/gic.h>
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#include <mach/iomap.h>
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#include <mach/irqs.h>
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#include "board.h"
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#include "board-harmony.h"
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#include "clock.h"
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#include "devices.h"
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void harmony_pinmux_init(void);
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void paz00_pinmux_init(void);
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void seaboard_pinmux_init(void);
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void trimslice_pinmux_init(void);
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void ventana_pinmux_init(void);
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struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
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OF_DEV_AUXDATA("nvidia,tegra20-pinmux", TEGRA_APB_MISC_BASE + 0x14, "tegra-pinmux", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-gpio", TEGRA_GPIO_BASE, "tegra-gpio", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.0", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra-i2s.1", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL),
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OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
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&tegra_ehci1_device.dev.platform_data),
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OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
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&tegra_ehci2_device.dev.platform_data),
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OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
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&tegra_ehci3_device.dev.platform_data),
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{}
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};
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static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
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/* name parent rate enabled */
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{ "uartd", "pll_p", 216000000, true },
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{ "usbd", "clk_m", 12000000, false },
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{ "usb2", "clk_m", 12000000, false },
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{ "usb3", "clk_m", 12000000, false },
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{ "pll_a", "pll_p_out1", 56448000, true },
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{ "pll_a_out0", "pll_a", 11289600, true },
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{ "cdev1", NULL, 0, true },
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{ "i2s1", "pll_a_out0", 11289600, false},
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{ "i2s2", "pll_a_out0", 11289600, false},
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{ NULL, NULL, 0, 0},
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};
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static struct of_device_id tegra_dt_match_table[] __initdata = {
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{ .compatible = "simple-bus", },
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{}
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};
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static struct {
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char *machine;
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void (*init)(void);
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} pinmux_configs[] = {
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{ "compulab,trimslice", trimslice_pinmux_init },
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{ "nvidia,harmony", harmony_pinmux_init },
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{ "compal,paz00", paz00_pinmux_init },
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{ "nvidia,seaboard", seaboard_pinmux_init },
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{ "nvidia,ventana", ventana_pinmux_init },
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};
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static void __init tegra_dt_init(void)
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{
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int i;
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tegra_clk_init_from_table(tegra_dt_clk_init_table);
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for (i = 0; i < ARRAY_SIZE(pinmux_configs); i++) {
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if (of_machine_is_compatible(pinmux_configs[i].machine)) {
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pinmux_configs[i].init();
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break;
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}
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}
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WARN(i == ARRAY_SIZE(pinmux_configs),
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"Unknown platform! Pinmuxing not initialized\n");
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/*
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* Finished with the static registrations now; fill in the missing
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* devices
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*/
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of_platform_populate(NULL, tegra_dt_match_table,
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tegra20_auxdata_lookup, NULL);
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}
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static const char *tegra20_dt_board_compat[] = {
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"nvidia,tegra20",
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NULL
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};
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DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
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.map_io = tegra_map_common_io,
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.init_early = tegra20_init_early,
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.init_irq = tegra_dt_init_irq,
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.handle_irq = gic_handle_irq,
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.timer = &tegra_timer,
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.init_machine = tegra_dt_init,
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.restart = tegra_assert_system_reset,
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.dt_compat = tegra20_dt_board_compat,
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MACHINE_END
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