mirror of
https://github.com/torvalds/linux
synced 2024-10-24 12:17:07 +00:00
0cf6230af9
Move tegra_common_init to tegra_init_early, and set it as the init_early entry in the machine struct. Initializes the clocks earlier so that timers can enable their clocks. Also reorders the members in the Harmony and Trimslice boards' machine structs to match the order they are called in. Signed-off-by: Colin Cross <ccross@android.com> Acked-by: Olof Johansson <olof@lixom.net>
123 lines
2.9 KiB
C
123 lines
2.9 KiB
C
/*
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* arch/arm/mach-tegra/board-harmony.c
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*
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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 <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 "board.h"
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#include "board-harmony.h"
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#include "clock.h"
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/* NVidia bootloader tags */
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#define ATAG_NVIDIA 0x41000801
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#define ATAG_NVIDIA_RM 0x1
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#define ATAG_NVIDIA_DISPLAY 0x2
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#define ATAG_NVIDIA_FRAMEBUFFER 0x3
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#define ATAG_NVIDIA_CHIPSHMOO 0x4
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#define ATAG_NVIDIA_CHIPSHMOOPHYS 0x5
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#define ATAG_NVIDIA_PRESERVED_MEM_0 0x10000
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#define ATAG_NVIDIA_PRESERVED_MEM_N 2
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#define ATAG_NVIDIA_FORCE_32 0x7fffffff
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struct tag_tegra {
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__u32 bootarg_key;
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__u32 bootarg_len;
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char bootarg[1];
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};
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static int __init parse_tag_nvidia(const struct tag *tag)
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{
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return 0;
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}
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__tagtable(ATAG_NVIDIA, parse_tag_nvidia);
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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 *harmony_devices[] __initdata = {
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&debug_uart,
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};
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static void __init tegra_harmony_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 = 2;
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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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mi->bank[1].start = SZ_512M;
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mi->bank[1].size = SZ_512M;
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}
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static __initdata struct tegra_clk_init_table harmony_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 void __init tegra_harmony_init(void)
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{
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tegra_clk_init_from_table(harmony_clk_init_table);
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harmony_pinmux_init();
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platform_add_devices(harmony_devices, ARRAY_SIZE(harmony_devices));
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}
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MACHINE_START(HARMONY, "harmony")
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.boot_params = 0x00000100,
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.fixup = tegra_harmony_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_harmony_init,
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MACHINE_END
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