summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-exynos/include
diff options
context:
space:
mode:
authorKukjin Kim <kgene.kim@samsung.com>2012-02-10 11:57:53 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-03-14 02:13:05 -0700
commit171c067c1a3f903fca78f2610794441a7d1e64f3 (patch)
tree62ea5441364f1c2288f5855dbbc6828e9f7808cb /arch/arm/mach-exynos/include
parentb67545fd9b5335c38c028e7984a1bef9e789c8dc (diff)
downloadblackbird-op-linux-171c067c1a3f903fca78f2610794441a7d1e64f3.tar.gz
blackbird-op-linux-171c067c1a3f903fca78f2610794441a7d1e64f3.zip
ARM: EXYNOS: add support uart for EXYNOS4 and EXYNOS5
Actually, the base address of uart is different between EXYNOS4 and EXYNOS5 and this patch enables to support uart for EXYNOS4 and EXYNOS5 SoCs at runtime. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/include')
-rw-r--r--arch/arm/mach-exynos/include/mach/debug-macro.S9
-rw-r--r--arch/arm/mach-exynos/include/mach/irqs.h12
-rw-r--r--arch/arm/mach-exynos/include/mach/map.h20
-rw-r--r--arch/arm/mach-exynos/include/mach/uncompress.h17
4 files changed, 42 insertions, 16 deletions
diff --git a/arch/arm/mach-exynos/include/mach/debug-macro.S b/arch/arm/mach-exynos/include/mach/debug-macro.S
index 6cacf16a67a6..6c857ff0b5d8 100644
--- a/arch/arm/mach-exynos/include/mach/debug-macro.S
+++ b/arch/arm/mach-exynos/include/mach/debug-macro.S
@@ -21,8 +21,13 @@
*/
.macro addruart, rp, rv, tmp
- ldr \rp, = S3C_PA_UART
- ldr \rv, = S3C_VA_UART
+ mov \rp, #0x10000000
+ ldr \rp, [\rp, #0x0]
+ and \rp, \rp, #0xf00000
+ teq \rp, #0x500000 @@ EXYNOS5
+ ldreq \rp, =EXYNOS5_PA_UART
+ movne \rp, #EXYNOS4_PA_UART @@ EXYNOS4
+ ldr \rv, =S3C_VA_UART
#if CONFIG_DEBUG_S3C_UART != 0
add \rp, \rp, #(0x10000 * CONFIG_DEBUG_S3C_UART)
add \rv, \rv, #(0x10000 * CONFIG_DEBUG_S3C_UART)
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index 1d401c957835..f78070ee79f0 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -173,4 +173,16 @@
/* Set the default NR_IRQS */
#define NR_IRQS (IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
+#define EXYNOS4_IRQ_UART0 IRQ_SPI(52)
+#define EXYNOS4_IRQ_UART1 IRQ_SPI(53)
+#define EXYNOS4_IRQ_UART2 IRQ_SPI(54)
+#define EXYNOS4_IRQ_UART3 IRQ_SPI(55)
+#define EXYNOS4_IRQ_UART4 IRQ_SPI(56)
+
+#define EXYNOS5_IRQ_UART0 IRQ_SPI(51)
+#define EXYNOS5_IRQ_UART1 IRQ_SPI(52)
+#define EXYNOS5_IRQ_UART2 IRQ_SPI(53)
+#define EXYNOS5_IRQ_UART3 IRQ_SPI(54)
+#define EXYNOS5_IRQ_UART4 IRQ_SPI(55)
+
#endif /* __ASM_ARCH_IRQS_H */
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 2ad4e9cfe498..ea513c626b12 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -153,7 +153,6 @@
#define S3C_PA_IIC7 EXYNOS4_PA_IIC(7)
#define S3C_PA_RTC EXYNOS4_PA_RTC
#define S3C_PA_WDT EXYNOS4_PA_WATCHDOG
-#define S3C_PA_UART EXYNOS4_PA_UART
#define S3C_PA_SPI0 EXYNOS4_PA_SPI0
#define S3C_PA_SPI1 EXYNOS4_PA_SPI1
#define S3C_PA_SPI2 EXYNOS4_PA_SPI2
@@ -182,15 +181,18 @@
/* Compatibility UART */
-#define S3C_VA_UARTx(x) (S3C_VA_UART + ((x) * S3C_UART_OFFSET))
+#define EXYNOS4_PA_UART0 0x13800000
+#define EXYNOS4_PA_UART1 0x13810000
+#define EXYNOS4_PA_UART2 0x13820000
+#define EXYNOS4_PA_UART3 0x13830000
+#define EXYNOS4_SZ_UART SZ_256
-#define S5P_PA_UART(x) (EXYNOS4_PA_UART + ((x) * S3C_UART_OFFSET))
-#define S5P_PA_UART0 S5P_PA_UART(0)
-#define S5P_PA_UART1 S5P_PA_UART(1)
-#define S5P_PA_UART2 S5P_PA_UART(2)
-#define S5P_PA_UART3 S5P_PA_UART(3)
-#define S5P_PA_UART4 S5P_PA_UART(4)
+#define EXYNOS5_PA_UART0 0x12C00000
+#define EXYNOS5_PA_UART1 0x12C10000
+#define EXYNOS5_PA_UART2 0x12C20000
+#define EXYNOS5_PA_UART3 0x12C30000
+#define EXYNOS5_SZ_UART SZ_256
-#define S5P_SZ_UART SZ_256
+#define S3C_VA_UARTx(x) (S3C_VA_UART + ((x) * S3C_UART_OFFSET))
#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-exynos/include/mach/uncompress.h b/arch/arm/mach-exynos/include/mach/uncompress.h
index 21d97bcd9acb..493f4f365ddf 100644
--- a/arch/arm/mach-exynos/include/mach/uncompress.h
+++ b/arch/arm/mach-exynos/include/mach/uncompress.h
@@ -1,9 +1,8 @@
-/* linux/arch/arm/mach-exynos4/include/mach/uncompress.h
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+/*
+ * Copyright (c) 2010-2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
- * EXYNOS4 - uncompress code
+ * EXYNOS - uncompress code
*
* 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
@@ -13,12 +12,20 @@
#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H __FILE__
+#include <asm/mach-types.h>
+
#include <mach/map.h>
+
+volatile u8 *uart_base;
+
#include <plat/uncompress.h>
static void arch_detect_cpu(void)
{
- /* we do not need to do any cpu detection here at the moment. */
+ if (machine_is_smdk5250())
+ uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT);
+ else
+ uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT);
/*
* For preventing FIFO overrun or infinite loop of UART console,
OpenPOWER on IntegriCloud