[PATCH v4] ARM: S5PV310: Add Samsung UNIVERSAL_C210 support

[Kukjin Kim]

From: Kyungmin Park <kyungmin.park at samsung.com>

This patch adds Samsung Mobile S5PC210 Reference Board, UNIVERSAL_C210 board
support.

Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
[kgene.kim at samsung.com: changed machine name]
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
Kyungmin,
Maybe as you know, should be changed all universal_ functions when adding
other universal board for avoiding confusing later. And need this so that
we can support single kernel image in future. Thanks.

NOTE:
Changes since v3:
- Changed only machine name not functions based on v1 patch

Changes since v2:
- Changed machine name from 'UNIVERSAL' to 'UNIVERSAL_C210'

Changes since v1:
- Changed default UFCON tx/rx trigger level

 arch/arm/mach-s5pv310/Kconfig               |    9 +++
 arch/arm/mach-s5pv310/Makefile              |    1 +
 arch/arm/mach-s5pv310/mach-universal_c210.c |   86 +++++++++++++++++++++++++++
 3 files changed, 96 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-s5pv310/mach-universal_c210.c

diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig
index f9b1892..331b5bd 100644
--- a/arch/arm/mach-s5pv310/Kconfig
+++ b/arch/arm/mach-s5pv310/Kconfig
@@ -33,4 +33,13 @@ config MACH_SMDKV310
 	select ARCH_SPARSEMEM_ENABLE
 	help
 	  Machine support for Samsung SMDKV310
+
+config MACH_UNIVERSAL_C210
+	bool "Mobile UNIVERSAL_C210 Board"
+	select CPU_S5PV310
+	select ARCH_SPARSEMEM_ENABLE
+	help
+	  Machine support for Samsung Mobile Universal S5PC210 Reference
+	  Board. S5PC210(MCP) is one of package option of S5PV310
+
 endif
diff --git a/arch/arm/mach-s5pv310/Makefile b/arch/arm/mach-s5pv310/Makefile
index 967e2c8..d5b51c7 100644
--- a/arch/arm/mach-s5pv310/Makefile
+++ b/arch/arm/mach-s5pv310/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_HOTPLUG_CPU)	+= hotplug.o
 # machine support
 
 obj-$(CONFIG_MACH_SMDKV310)	+= mach-smdkv310.o
+obj-$(CONFIG_MACH_UNIVERSAL_C210)	+= mach-universal_c210.o
 
 # device support
 
diff --git a/arch/arm/mach-s5pv310/mach-universal_c210.c b/arch/arm/mach-s5pv310/mach-universal_c210.c
new file mode 100644
index 0000000..2388cb9
--- /dev/null
+++ b/arch/arm/mach-s5pv310/mach-universal_c210.c
@@ -0,0 +1,86 @@
+/* linux/arch/arm/mach-s5pv310/mach-universal_c210.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *
+ * 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 <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <plat/regs-serial.h>
+#include <plat/s5pv310.h>
+#include <plat/cpu.h>
+
+#include <mach/map.h>
+
+/* Following are default values for UCON, ULCON and UFCON UART registers */
+#define UNIVERSAL_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
+				 S3C2410_UCON_RXILEVEL |	\
+				 S3C2410_UCON_TXIRQMODE |	\
+				 S3C2410_UCON_RXIRQMODE |	\
+				 S3C2410_UCON_RXFIFO_TOI |	\
+				 S3C2443_UCON_RXERR_IRQEN)
+
+#define UNIVERSAL_ULCON_DEFAULT	S3C2410_LCON_CS8
+
+#define UNIVERSAL_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
+				 S5PV210_UFCON_TXTRIG256 |	\
+				 S5PV210_UFCON_RXTRIG256)
+
+static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport		= 0,
+		.ucon		= UNIVERSAL_UCON_DEFAULT,
+		.ulcon		= UNIVERSAL_ULCON_DEFAULT,
+		.ufcon		= UNIVERSAL_UFCON_DEFAULT,
+	},
+	[1] = {
+		.hwport		= 1,
+		.ucon		= UNIVERSAL_UCON_DEFAULT,
+		.ulcon		= UNIVERSAL_ULCON_DEFAULT,
+		.ufcon		= UNIVERSAL_UFCON_DEFAULT,
+	},
+	[2] = {
+		.hwport		= 2,
+		.ucon		= UNIVERSAL_UCON_DEFAULT,
+		.ulcon		= UNIVERSAL_ULCON_DEFAULT,
+		.ufcon		= UNIVERSAL_UFCON_DEFAULT,
+	},
+	[3] = {
+		.hwport		= 3,
+		.ucon		= UNIVERSAL_UCON_DEFAULT,
+		.ulcon		= UNIVERSAL_ULCON_DEFAULT,
+		.ufcon		= UNIVERSAL_UFCON_DEFAULT,
+	},
+};
+
+static void __init universal_map_io(void)
+{
+	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+	s3c24xx_init_clocks(24000000);
+	s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
+}
+
+static void __init universal_machine_init(void)
+{
+#ifdef CONFIG_CACHE_L2X0
+	l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
+#endif
+}
+
+MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
+	/* Maintainer: Kyungmin Park <kyungmin.park at samsung.com> */
+	.phys_io	= S3C_PA_UART & 0xfff00000,
+	.io_pg_offst	= (((u32)S3C_VA_UART) >> 18) & 0xfffc,
+	.boot_params	= S5P_PA_SDRAM + 0x100,
+	.init_irq	= s5pv310_init_irq,
+	.map_io		= universal_map_io,
+	.init_machine	= universal_machine_init,
+	.timer		= &s5pv310_timer,
+MACHINE_END
-- 
1.6.2.5