ARM: ep93xx: ts72xx: allow rtc-m48t86 to manage its own resources
The rtc-m48t86 driver can now handle its own resources and do the
read/write operations internally.
Pass the necessary resources to the driver and remove the m48t86_ops
platform data.
Remove the, then unnecessary, static remapping for the registers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 3b39ea3..8a5b6f0 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -16,7 +16,6 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/platform_data/rtc-m48t86.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
@@ -45,16 +44,6 @@
.pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
.length = TS72XX_OPTIONS2_SIZE,
.type = MT_DEVICE,
- }, {
- .virtual = (unsigned long)TS72XX_RTC_INDEX_VIRT_BASE,
- .pfn = __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE),
- .length = TS72XX_RTC_INDEX_SIZE,
- .type = MT_DEVICE,
- }, {
- .virtual = (unsigned long)TS72XX_RTC_DATA_VIRT_BASE,
- .pfn = __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE),
- .length = TS72XX_RTC_DATA_SIZE,
- .type = MT_DEVICE,
}
};
@@ -179,31 +168,22 @@
}
}
+/*************************************************************************
+ * RTC M48T86
+ *************************************************************************/
+#define TS72XX_RTC_INDEX_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x00800000)
+#define TS72XX_RTC_DATA_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x01700000)
-static unsigned char ts72xx_rtc_readbyte(unsigned long addr)
-{
- __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE);
- return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE);
-}
-
-static void ts72xx_rtc_writebyte(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 = {
- .readbyte = ts72xx_rtc_readbyte,
- .writebyte = ts72xx_rtc_writebyte,
+static struct resource ts72xx_rtc_resources[] = {
+ DEFINE_RES_MEM(TS72XX_RTC_INDEX_PHYS_BASE, 0x01),
+ DEFINE_RES_MEM(TS72XX_RTC_DATA_PHYS_BASE, 0x01),
};
static struct platform_device ts72xx_rtc_device = {
.name = "rtc-m48t86",
.id = -1,
- .dev = {
- .platform_data = &ts72xx_rtc_ops,
- },
- .num_resources = 0,
+ .resource = ts72xx_rtc_resources,
+ .num_resources = ARRAY_SIZE(ts72xx_rtc_resources),
};
static struct resource ts72xx_wdt_resources[] = {
diff --git a/arch/arm/mach-ep93xx/ts72xx.h b/arch/arm/mach-ep93xx/ts72xx.h
index 071feaa..2255ba2 100644
--- a/arch/arm/mach-ep93xx/ts72xx.h
+++ b/arch/arm/mach-ep93xx/ts72xx.h
@@ -9,8 +9,6 @@
* febff000 22000000 4K model number register (bits 0-2)
* febfe000 22400000 4K options register
* febfd000 22800000 4K options register #2
- * febf9000 10800000 4K TS-5620 RTC index register
- * febf8000 11700000 4K TS-5620 RTC data register
*/
#define TS72XX_MODEL_PHYS_BASE 0x22000000
@@ -40,15 +38,6 @@
#define TS72XX_OPTIONS2_TS9420 0x04
#define TS72XX_OPTIONS2_TS9420_BOOT 0x02
-
-#define TS72XX_RTC_INDEX_VIRT_BASE IOMEM(0xfebf9000)
-#define TS72XX_RTC_INDEX_PHYS_BASE 0x10800000
-#define TS72XX_RTC_INDEX_SIZE 0x00001000
-
-#define TS72XX_RTC_DATA_VIRT_BASE IOMEM(0xfebf8000)
-#define TS72XX_RTC_DATA_PHYS_BASE 0x11700000
-#define TS72XX_RTC_DATA_SIZE 0x00001000
-
#define TS72XX_WDT_CONTROL_PHYS_BASE 0x23800000
#define TS72XX_WDT_FEED_PHYS_BASE 0x23c00000