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authorLennert Buytenhek <buytenh@wantstofly.org>2006-04-02 16:17:40 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-04-02 16:17:40 +0100
commit7ba01f9728a9f1cd1a3e1e2d5206f76061182675 (patch)
tree4f34eb87b275bbbaafe61e4e1bed12f1f70ccb11 /arch/arm
parent41658132e650c01529dd5cc5cea8b0055def1165 (diff)
downloadop-kernel-dev-7ba01f9728a9f1cd1a3e1e2d5206f76061182675.zip
op-kernel-dev-7ba01f9728a9f1cd1a3e1e2d5206f76061182675.tar.gz
[ARM] 3451/1: ep93xx: use the m48t86 rtc driver on the ts72xx platform
Patch from Lennert Buytenhek Instantiate the recently merged m48t86 rtc driver in the ts72xx code. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-ep93xx/ts72xx.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 777e75d..9be01b0c 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -17,6 +17,8 @@
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <linux/m48t86.h>
#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
@@ -39,6 +41,16 @@ static struct map_desc ts72xx_io_desc[] __initdata = {
.pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
.length = TS72XX_OPTIONS2_SIZE,
.type = MT_DEVICE,
+ }, {
+ .virtual = TS72XX_RTC_INDEX_VIRT_BASE,
+ .pfn = __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE),
+ .length = TS72XX_RTC_INDEX_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = TS72XX_RTC_DATA_VIRT_BASE,
+ .pfn = __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE),
+ .length = TS72XX_RTC_DATA_SIZE,
+ .type = MT_DEVICE,
}
};
@@ -99,11 +111,38 @@ static void __init ts72xx_map_io(void)
}
}
+static unsigned char ts72xx_rtc_readb(unsigned long addr)
+{
+ __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
+ return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE);
+}
+
+static void ts72xx_rtc_writeb(unsigned char value, unsigned long addr)
+{
+ __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
+ __raw_writeb(value, TS72XX_RTC_DATA_VIRT_BASE);
+}
+
+static struct m48t86_ops ts72xx_rtc_ops = {
+ .readb = ts72xx_rtc_readb,
+ .writeb = ts72xx_rtc_writeb,
+};
+
+static struct platform_device ts72xx_rtc_device = {
+ .name = "rtc-m48t86",
+ .id = -1,
+ .dev = {
+ .platform_data = &ts72xx_rtc_ops,
+ },
+ .num_resources = 0,
+};
+
static void __init ts72xx_init_machine(void)
{
ep93xx_init_devices();
if (board_is_ts7200())
physmap_configure(TS72XX_NOR_PHYS_BASE, 0x01000000, 1, NULL);
+ platform_device_register(&ts72xx_rtc_device);
}
MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
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