forked from Minki/linux
191d754f5b
EXYNOS5420 is new SoC in Samsung's Exynos5 SoC series. Add initial support for this new SoC. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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* SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/of_platform.h>
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#include <linux/of_fdt.h>
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#include <linux/memblock.h>
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#include <linux/io.h>
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#include <linux/clocksource.h>
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#include <asm/mach/arch.h>
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#include <mach/regs-pmu.h>
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#include <plat/cpu.h>
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#include <plat/mfc.h>
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#include "common.h"
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static void __init exynos5_dt_map_io(void)
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{
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exynos_init_io(NULL, 0);
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}
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static void __init exynos5_dt_machine_init(void)
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{
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struct device_node *i2c_np;
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const char *i2c_compat = "samsung,s3c2440-i2c";
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unsigned int tmp;
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/*
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* Exynos5's legacy i2c controller and new high speed i2c
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* controller have muxed interrupt sources. By default the
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* interrupts for 4-channel HS-I2C controller are enabled.
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* If node for first four channels of legacy i2c controller
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* are available then re-configure the interrupts via the
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* system register.
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*/
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for_each_compatible_node(i2c_np, NULL, i2c_compat) {
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if (of_device_is_available(i2c_np)) {
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if (of_alias_get_id(i2c_np, "i2c") < 4) {
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tmp = readl(EXYNOS5_SYS_I2C_CFG);
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writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")),
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EXYNOS5_SYS_I2C_CFG);
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}
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}
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}
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of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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}
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static char const *exynos5_dt_compat[] __initdata = {
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"samsung,exynos5250",
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"samsung,exynos5420",
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"samsung,exynos5440",
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NULL
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};
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static void __init exynos5_reserve(void)
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{
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#ifdef CONFIG_S5P_DEV_MFC
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struct s5p_mfc_dt_meminfo mfc_mem;
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/* Reserve memory for MFC only if it's available */
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mfc_mem.compatible = "samsung,mfc-v6";
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if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
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s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
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mfc_mem.lsize);
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#endif
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}
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DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
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/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
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.init_irq = exynos5_init_irq,
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.smp = smp_ops(exynos_smp_ops),
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.map_io = exynos5_dt_map_io,
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.init_machine = exynos5_dt_machine_init,
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.init_late = exynos_init_late,
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.init_time = exynos_init_time,
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.dt_compat = exynos5_dt_compat,
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.restart = exynos5_restart,
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.reserve = exynos5_reserve,
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MACHINE_END
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