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authorMattias Wallin <mattias.wallin@stericsson.com>2011-05-27 12:30:34 +0400
committerLinus Walleij <linus.walleij@linaro.org>2011-09-22 17:43:20 +0400
commit7ed00af7a960031ad00017e3ebcf1d3ef22af498 (patch)
treee96b004167dcdb8a4c9643c5d2fc82139267c079 /arch/arm/mach-ux500
parent489bccea6334514a8e13436f10d0a274777bf17a (diff)
downloadlinux-7ed00af7a960031ad00017e3ebcf1d3ef22af498.tar.xz
ARM: ux500: add support for clocksource DBX500 PRCMU
This patch adds support for the DBX500 PRCMU clocksource to ux500 platforms. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.co> Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/mach-ux500')
-rw-r--r--arch/arm/mach-ux500/cpu.c9
-rw-r--r--arch/arm/mach-ux500/include/mach/db5500-regs.h2
-rw-r--r--arch/arm/mach-ux500/include/mach/db8500-regs.h3
3 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 1da23bb87c16..c0e4593f7719 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -10,6 +10,7 @@
#include <linux/clk.h>
#include <linux/mfd/db8500-prcmu.h>
#include <linux/mfd/db5500-prcmu.h>
+#include <linux/clksrc-dbx500-prcmu.h>
#include <asm/cacheflush.h>
#include <asm/hardware/cache-l2x0.h>
@@ -140,7 +141,15 @@ static void __init ux500_timer_init(void)
else
ux500_unknown_soc();
+ if (cpu_is_u8500())
+ clksrc_dbx500_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE);
+ else if (cpu_is_u5500())
+ clksrc_dbx500_timer_base = __io_address(U5500_PRCMU_TIMER_3_BASE);
+ else
+ ux500_unknown_soc();
+
nmdk_timer_init();
+ clksrc_dbx500_prcmu_init();
}
struct sys_timer ux500_timer = {
diff --git a/arch/arm/mach-ux500/include/mach/db5500-regs.h b/arch/arm/mach-ux500/include/mach/db5500-regs.h
index 6ad983294103..994b5fe6f85a 100644
--- a/arch/arm/mach-ux500/include/mach/db5500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db5500-regs.h
@@ -61,6 +61,8 @@
#define U5500_SCR_BASE (U5500_PER4_BASE + 0x5000)
#define U5500_DMC_BASE (U5500_PER4_BASE + 0x6000)
#define U5500_PRCMU_BASE (U5500_PER4_BASE + 0x7000)
+#define U5500_PRCMU_TIMER_3_BASE (U5500_PER4_BASE + 0x07338)
+#define U5500_PRCMU_TIMER_4_BASE (U5500_PER4_BASE + 0x07450)
#define U5500_MSP1_BASE (U5500_PER4_BASE + 0x9000)
#define U5500_GPIO2_BASE (U5500_PER4_BASE + 0xA000)
#define U5500_CDETECT_BASE (U5500_PER4_BASE + 0xF000)
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 049997109cf9..751b0e6938d4 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -102,10 +102,13 @@
#define U8500_SCR_BASE (U8500_PER4_BASE + 0x05000)
#define U8500_DMC_BASE (U8500_PER4_BASE + 0x06000)
#define U8500_PRCMU_BASE (U8500_PER4_BASE + 0x07000)
+#define U8500_PRCMU_TIMER_3_BASE (U8500_PER4_BASE + 0x07338)
+#define U8500_PRCMU_TIMER_4_BASE (U8500_PER4_BASE + 0x07450)
#define U8500_PRCMU_TCDM_BASE_V1 (U8500_PER4_BASE + 0x0f000)
#define U8500_PRCMU_TCDM_BASE (U8500_PER4_BASE + 0x68000)
#define U8500_PRCMU_TCPM_BASE (U8500_PER4_BASE + 0x60000)
+
/* per3 base addresses */
#define U8500_FSMC_BASE (U8500_PER3_BASE + 0x0000)
#define U8500_SSP0_BASE (U8500_PER3_BASE + 0x2000)