This patch adds a new SMDKV310 machine that boots with a minimal
device tree support. The bootargs and memory information is obtained
from the device tree during boot.
Signed-off-by: Thomas Abraham <thomas.abra...@linaro.org>
---
arch/arm/mach-s5pv310/Kconfig | 7 ++
arch/arm/mach-s5pv310/Makefile | 1 +
arch/arm/mach-s5pv310/mach-smdkv310-dt.c | 101 ++++++++++++++++++++++++++++++
3 files changed, 109 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-s5pv310/mach-smdkv310-dt.c
diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig
index 09c4c21..6c5f0bf 100644
--- a/arch/arm/mach-s5pv310/Kconfig
+++ b/arch/arm/mach-s5pv310/Kconfig
@@ -127,6 +127,13 @@ config MACH_SMDKV310
help
Machine support for Samsung SMDKV310
+config MACH_SMDKV310_DT
+ bool "SMDKV310 with device tree support"
+ select CPU_S5PV310
+ select USE_OF
+ help
+ Machine support for Samsung SMDKV310 with device tree based
initialization.
+
endmenu
comment "Configuration for HSMMC bus width"
diff --git a/arch/arm/mach-s5pv310/Makefile b/arch/arm/mach-s5pv310/Makefile
index 036fb38..59545aa 100644
--- a/arch/arm/mach-s5pv310/Makefile
+++ b/arch/arm/mach-s5pv310/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
obj-$(CONFIG_MACH_SMDKC210) += mach-smdkc210.o
obj-$(CONFIG_MACH_SMDKV310) += mach-smdkv310.o
+obj-$(CONFIG_MACH_SMDKV310_DT) += mach-smdkv310-dt.o
obj-$(CONFIG_MACH_UNIVERSAL_C210) += mach-universal_c210.o
# device support
diff --git a/arch/arm/mach-s5pv310/mach-smdkv310-dt.c
b/arch/arm/mach-s5pv310/mach-smdkv310-dt.c
new file mode 100644
index 0000000..367fdb1
--- /dev/null
+++ b/arch/arm/mach-s5pv310/mach-smdkv310-dt.c
@@ -0,0 +1,101 @@
+/* linux/arch/arm/mach-s5pv310/mach-smdkv310.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.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/serial_core.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <plat/regs-serial.h>
+#include <plat/s5pv310.h>
+#include <plat/cpu.h>
+#include <plat/devs.h>
+
+#include <mach/map.h>
+
+/* Following are default values for UCON, ULCON and UFCON UART registers */
+#define SMDKV310_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
+ S3C2410_UCON_RXILEVEL | \
+ S3C2410_UCON_TXIRQMODE | \
+ S3C2410_UCON_RXIRQMODE | \
+ S3C2410_UCON_RXFIFO_TOI | \
+ S3C2443_UCON_RXERR_IRQEN)
+
+#define SMDKV310_ULCON_DEFAULT S3C2410_LCON_CS8
+
+#define SMDKV310_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
+ S5PV210_UFCON_TXTRIG4 | \
+ S5PV210_UFCON_RXTRIG4)
+
+static struct s3c2410_uartcfg smdkv310_uartcfgs[] __initdata = {
+ [0] = {
+ .hwport = 0,
+ .flags = 0,
+ .ucon = SMDKV310_UCON_DEFAULT,
+ .ulcon = SMDKV310_ULCON_DEFAULT,
+ .ufcon = SMDKV310_UFCON_DEFAULT,
+ },
+ [1] = {
+ .hwport = 1,
+ .flags = 0,
+ .ucon = SMDKV310_UCON_DEFAULT,
+ .ulcon = SMDKV310_ULCON_DEFAULT,
+ .ufcon = SMDKV310_UFCON_DEFAULT,
+ },
+ [2] = {
+ .hwport = 2,
+ .flags = 0,
+ .ucon = SMDKV310_UCON_DEFAULT,
+ .ulcon = SMDKV310_ULCON_DEFAULT,
+ .ufcon = SMDKV310_UFCON_DEFAULT,
+ },
+ [3] = {
+ .hwport = 3,
+ .flags = 0,
+ .ucon = SMDKV310_UCON_DEFAULT,
+ .ulcon = SMDKV310_ULCON_DEFAULT,
+ .ufcon = SMDKV310_UFCON_DEFAULT,
+ },
+};
+
+static struct platform_device *smdkv310_devices[] __initdata = {
+};
+
+static void __init smdkv310_map_io(void)
+{
+ s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+ s3c24xx_init_clocks(24000000);
+ s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs));
+}
+
+static void __init smdkv310_machine_init(void)
+{
+ platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices));
+}
+
+static char const *smdkv310_dt_compat[] = {
+ "samsung,smdkv310",
+ NULL
+};
+
+DT_MACHINE_START(SMDKV310, "Samsung's SMDKV310 with flattened device tree")
+ /* Maintainer: Kukjin Kim <kgene....@samsung.com> */
+ /* Maintainer: Changhwan Youn <chaos.y...@samsung.com> */
+ .boot_params = S5P_PA_SDRAM + 0x100,
+ .init_irq = s5pv310_init_irq,
+ .map_io = smdkv310_map_io,
+ .init_machine = smdkv310_machine_init,
+ .timer = &s5pv310_timer,
+ .dt_compat = smdkv310_dt_compat,
+MACHINE_END
--
1.6.6.rc2
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