[PATCH 7/7] ARM: S5P6440: Add serial port support
Kukjin Kim
kgene.kim at samsung.com
Fri Dec 18 04:19:52 EST 2009
This patch adds UART serial port support for S5P6440 CPU. Most of the
serial support of Samsung's 6440 CPU is reused for 6440 CPU.
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
Signed-off-by: Adityapratap Sharma <aditya.ps at samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab at samsung.com>
Signed-off-by: Atul Dahiya <atul.dahiya at samsung.com>
---
arch/arm/plat-s3c/include/plat/devs.h | 1 +
arch/arm/plat-s3c/include/plat/regs-serial.h | 1 +
arch/arm/plat-s5p/dev-uart.c | 165 ++++++++++++++++++++++++++
drivers/serial/Kconfig | 9 ++-
drivers/serial/Makefile | 1 +
5 files changed, 176 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/plat-s5p/dev-uart.c
diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
index 0f540ea..34e3c39 100644
--- a/arch/arm/plat-s3c/include/plat/devs.h
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -18,6 +18,7 @@ struct s3c24xx_uart_resources {
extern struct s3c24xx_uart_resources s3c2410_uart_resources[];
extern struct s3c24xx_uart_resources s3c64xx_uart_resources[];
+extern struct s3c24xx_uart_resources s5p_uart_resources[];
extern struct platform_device *s3c24xx_uart_devs[];
extern struct platform_device *s3c24xx_uart_src[];
diff --git a/arch/arm/plat-s3c/include/plat/regs-serial.h b/arch/arm/plat-s3c/include/plat/regs-serial.h
index 66af75a..64b6025 100644
--- a/arch/arm/plat-s3c/include/plat/regs-serial.h
+++ b/arch/arm/plat-s3c/include/plat/regs-serial.h
@@ -193,6 +193,7 @@
#define S3C64XX_UINTP 0x30
#define S3C64XX_UINTSP 0x34
#define S3C64XX_UINTM 0x38
+#define S3C64XX_ULCON_WORD_8BIT (3 << 0)
#ifndef __ASSEMBLY__
diff --git a/arch/arm/plat-s5p/dev-uart.c b/arch/arm/plat-s5p/dev-uart.c
new file mode 100644
index 0000000..af726f4
--- /dev/null
+++ b/arch/arm/plat-s5p/dev-uart.c
@@ -0,0 +1,165 @@
+/* linux/arch/arm/plat-s5p/dev-uart.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Base S5P UART resource and device definitions
+ *
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <plat/devs.h>
+
+ /* Serial port registrations */
+
+static struct resource s5p_uart0_resource[] = {
+ [0] = {
+ .start = S5P_PA_UART0,
+ .end = S5P_PA_UART0 + S5P_SZ_UART,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_S5P_UART_RX0,
+ .end = IRQ_S5P_UART_RX0,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = IRQ_S5P_UART_TX0,
+ .end = IRQ_S5P_UART_TX0,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = IRQ_S5P_UART_ERR0,
+ .end = IRQ_S5P_UART_ERR0,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource s5p_uart1_resource[] = {
+ [0] = {
+ .start = S5P_PA_UART1,
+ .end = S5P_PA_UART1 + S5P_SZ_UART,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_S5P_UART_RX1,
+ .end = IRQ_S5P_UART_RX1,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = IRQ_S5P_UART_TX1,
+ .end = IRQ_S5P_UART_TX1,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = IRQ_S5P_UART_ERR1,
+ .end = IRQ_S5P_UART_ERR1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource s5p_uart2_resource[] = {
+ [0] = {
+ .start = S5P_PA_UART2,
+ .end = S5P_PA_UART2 + S5P_SZ_UART,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_S5P_UART_RX2,
+ .end = IRQ_S5P_UART_RX2,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = IRQ_S5P_UART_TX2,
+ .end = IRQ_S5P_UART_TX2,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = IRQ_S5P_UART_ERR2,
+ .end = IRQ_S5P_UART_ERR2,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource s5p_uart3_resource[] = {
+ [0] = {
+ .start = S5P_PA_UART3,
+ .end = S5P_PA_UART3 + S5P_SZ_UART,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_S5P_UART_RX3,
+ .end = IRQ_S5P_UART_RX3,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = IRQ_S5P_UART_TX3,
+ .end = IRQ_S5P_UART_TX3,
+ .flags = IORESOURCE_IRQ,
+ },
+ [3] = {
+ .start = IRQ_S5P_UART_ERR3,
+ .end = IRQ_S5P_UART_ERR3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct s3c24xx_uart_resources s5p_uart_resources[] __initdata = {
+ [0] = {
+ .resources = s5p_uart0_resource,
+ .nr_resources = ARRAY_SIZE(s5p_uart0_resource),
+ },
+ [1] = {
+ .resources = s5p_uart1_resource,
+ .nr_resources = ARRAY_SIZE(s5p_uart1_resource),
+ },
+ [2] = {
+ .resources = s5p_uart2_resource,
+ .nr_resources = ARRAY_SIZE(s5p_uart2_resource),
+ },
+ [3] = {
+ .resources = s5p_uart3_resource,
+ .nr_resources = ARRAY_SIZE(s5p_uart3_resource),
+ },
+};
+
+/* uart devices */
+
+static struct platform_device s5p_uart_device0 = {
+ .id = 0,
+};
+
+static struct platform_device s5p_uart_device1 = {
+ .id = 1,
+};
+
+static struct platform_device s5p_uart_device2 = {
+ .id = 2,
+};
+
+static struct platform_device s5p_uart_device3 = {
+ .id = 3,
+};
+
+struct platform_device *s3c24xx_uart_src[4] = {
+ &s5p_uart_device0,
+ &s5p_uart_device1,
+ &s5p_uart_device2,
+ &s5p_uart_device3,
+};
+
+struct platform_device *s3c24xx_uart_devs[4] = {
+};
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 03422ce..d1bd171 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -459,7 +459,7 @@ config SERIAL_SAMSUNG_UARTS
int
depends on ARM && PLAT_S3C
default 2 if ARCH_S3C2400
- default 4 if ARCH_S5PC1XX || ARCH_S3C64XX || CPU_S3C2443
+ default 4 if ARCH_S5P6440 || ARCH_S5PC1XX || ARCH_S3C64XX || CPU_S3C2443
default 3
help
Select the number of available UART ports for the Samsung S3C
@@ -533,6 +533,13 @@ config SERIAL_S3C6400
Serial port support for the Samsung S3C6400 and S3C6410
SoCs
+config SERIAL_S5P
+ tristate "Samsung S5P Serial port support"
+ depends on SERIAL_SAMSUNG && CPU_S5P6440
+ default y
+ help
+ Serial port support for Samsung's S5P Family of SoC's
+
config SERIAL_S5PC100
tristate "Samsung S5PC100 Serial port support"
depends on SERIAL_SAMSUNG && CPU_S5PC100
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 97f6fcc..aa87fbe 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_SERIAL_S3C2412) += s3c2412.o
obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o
obj-$(CONFIG_SERIAL_S3C24A0) += s3c24a0.o
obj-$(CONFIG_SERIAL_S3C6400) += s3c6400.o
+obj-$(CONFIG_SERIAL_S5P) += s3c6400.o
obj-$(CONFIG_SERIAL_S5PC100) += s3c6400.o
obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o
--
1.6.2.5
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