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Message-id: <1380214769-7685-2-git-send-email-m.krawczuk@partner.samsung.com>
Date: Thu, 26 Sep 2013 18:59:27 +0200
From: Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>
To: kgene.kim@...sung.com
Cc: linux@....linux.org.uk, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
rob.herring@...xeda.com, pawel.moll@....com, mark.rutland@....com,
swarren@...dotorg.org, ijc+devicetree@...lion.org.uk,
devicetree@...r.kernel.org, t.figa@...sung.com,
m.szyprowski@...sung.com, b.zolnierkie@...sung.com,
k.debski@...sung.com, s.nawrocki@...sung.com,
t.stanislaws@...sung.com,
Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>,
Kyungmin Park <kyungmin.park@...sung.com>
Subject: [RFC 1/3] ARM: s5pv210: Add board file for boot using Device Tree
This patch adds board file that will be used to boot S5PV210/S5PC110-based
boards using Device Tree.
Signed-off-by: Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
arch/arm/mach-s5pv210/Kconfig | 14 +++++
arch/arm/mach-s5pv210/Makefile | 2 +-
arch/arm/mach-s5pv210/mach-s5pv210-dt.c | 92 +++++++++++++++++++++++++++++++++
3 files changed, 107 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/mach-s5pv210/mach-s5pv210-dt.c
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index abad41f..be7a056 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -201,6 +201,20 @@ config MACH_TORBRECK
help
Machine support for aESOP Torbreck
+config MACH_S5PV210_DT
+ bool "Samsung S5PV210/S5PC110 machine using Device Tree"
+ select CLKSRC_OF
+ select CPU_S5PV210
+ select PINCTRL
+ select PINCTRL_S5PV210
+ select USE_OF
+ help
+ Machine support for Samsung S5PV210/S5PC110 machines with Device Tree
+ enabled.
+ Select this if a fdt blob is available for your S5PV210 SoC based
+ board.
+ Note: This is under development and not all peripherals can be
+ supported with this machine file.
endmenu
endif
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 0c67fe2..46277d0 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_MACH_GONI) += mach-goni.o
obj-$(CONFIG_MACH_SMDKC110) += mach-smdkc110.o
obj-$(CONFIG_MACH_SMDKV210) += mach-smdkv210.o
obj-$(CONFIG_MACH_TORBRECK) += mach-torbreck.o
-
+obj-$(CONFIG_MACH_S5PV210_DT) += mach-s5pv210-dt.o
# device support
obj-y += dev-audio.o
diff --git a/arch/arm/mach-s5pv210/mach-s5pv210-dt.c b/arch/arm/mach-s5pv210/mach-s5pv210-dt.c
new file mode 100644
index 0000000..f7e5fa8
--- /dev/null
+++ b/arch/arm/mach-s5pv210/mach-s5pv210-dt.c
@@ -0,0 +1,92 @@
+
+/*
+ * Samsung's S5PV210/S5PC110 flattened device tree enabled machine
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Author: Mateusz Krawczuk <m.krawczuk@...tner.samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/irqchip.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+
+#include <plat/cpu.h>
+#include <plat/watchdog-reset.h>
+
+#include <mach/map.h>
+
+#include "common.h"
+
+/*
+ * IO mapping for shared system controller IP.
+ *
+ * FIXME: Make remaining drivers use dynamic mapping.
+ */
+static struct map_desc s5pv210_dt_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S3C_VA_SYS,
+ .pfn = __phys_to_pfn(S5PV210_PA_SYSCON),
+ .length = SZ_64K,
+ .type = MT_DEVICE,
+ },
+};
+
+static void __init s5pv210_dt_map_io(void)
+{
+ debug_ll_io_init();
+ iotable_init(s5pv210_dt_iodesc, ARRAY_SIZE(s5pv210_dt_iodesc));
+}
+
+static void __init s5pv210_dt_init_irq(void)
+{
+ void __iomem *chipid_base;
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "samsung,s5pv210-chipid");
+ if (!np)
+ panic("%s: Unable to find device node!", __func__);
+
+ chipid_base = of_iomap(np, 0);
+ if (!chipid_base)
+ panic("Unable get a chipid!");
+
+ s5p_init_cpu(chipid_base);
+ iounmap(chipid_base);
+
+ if (!soc_is_s5pv210())
+ panic("SoC is not S5PV210/S5PC110!");
+
+ of_clk_init(NULL);
+ irqchip_init();
+};
+
+static void __init s5pv210_dt_init_machine(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static char const *s5pv210_dt_compat[] __initdata = {
+ "samsung,s5pc110",
+ "samsung,s5pv210",
+ NULL
+};
+
+DT_MACHINE_START(S3C6400_DT, "Samsung S5PV210/S5PC110 (Flattened Device Tree)")
+ /* Maintainer: Mateusz Krawczuk <m.krawczuk@...tner.samsung.com> */
+ .dt_compat = s5pv210_dt_compat,
+ .map_io = s5pv210_dt_map_io,
+ .init_irq = s5pv210_dt_init_irq,
+ .init_machine = s5pv210_dt_init_machine,
+ .restart = s5pv210_restart,
+MACHINE_END
--
1.8.1.2
--
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