From f9366236430cfd8f36944b25e76836dbfc826032 Mon Sep 17 00:00:00 2001
From: jdgordon <jdgordon@a1c6a512-1295-4272-9138-f99709370657>
Date: Tue, 23 Oct 2007 14:22:44 +0000
Subject: [PATCH] enable the RTC on the mrobe.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15279 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/rtc/rtc_rx5x348ab.c        | 23 ++++++++++++++++++++---
 firmware/export/config-mrobe500.h           |  2 +-
 firmware/target/arm/tms320dm320/spi-dm320.c |  5 ++---
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/firmware/drivers/rtc/rtc_rx5x348ab.c b/firmware/drivers/rtc/rtc_rx5x348ab.c
index 4899d9956..429a221b1 100644
--- a/firmware/drivers/rtc/rtc_rx5x348ab.c
+++ b/firmware/drivers/rtc/rtc_rx5x348ab.c
@@ -21,15 +21,32 @@
 #include "spi.h"
 #include "rtc.h"
 #include <stdbool.h>
-
+/* Choose one of: */
+#define ADDR_READ       0x04
+#define ADDR_WRITE      0x00
+/* and one of: */
+#define ADDR_ONE        0x08
+#define ADDR_BURST      0x00
 void rtc_init(void)
 {
 }
-
+    
 int rtc_read_datetime(unsigned char* buf)
 {
-    char command = 0x04; /* burst read from the start of the time/date reg */
+    char command = ADDR_READ|ADDR_BURST; /* burst read from the start of the time/date reg */
     spi_block_transfer(SPI_target_RX5X348AB,
                        &command, 1, buf, 7);
     return 1;
 }
+int rtc_write_datetime(unsigned char* buf)
+{
+    char command = ADDR_WRITE|ADDR_BURST; /* burst read from the start of the time/date reg */
+    char data[8];
+    int i;
+    data[0] = command;
+    for (i=1;i<8;i++)
+        data[i] = buf[i-1];
+    spi_block_transfer(SPI_target_RX5X348AB,
+                       data, 8, NULL, 0);
+    return 1;
+}
diff --git a/firmware/export/config-mrobe500.h b/firmware/export/config-mrobe500.h
index 9cd7a7c47..04f3d8340 100644
--- a/firmware/export/config-mrobe500.h
+++ b/firmware/export/config-mrobe500.h
@@ -84,7 +84,7 @@
 #define CONFIG_CODEC SWCODEC
 
 /* define this if you have a real-time clock */
-//#define CONFIG_RTC RTC_RX5X348AB
+#define CONFIG_RTC RTC_RX5X348AB
 
 /* Define this for LCD backlight available */
 #define HAVE_BACKLIGHT
diff --git a/firmware/target/arm/tms320dm320/spi-dm320.c b/firmware/target/arm/tms320dm320/spi-dm320.c
index e9dd2e01a..f80c3884f 100644
--- a/firmware/target/arm/tms320dm320/spi-dm320.c
+++ b/firmware/target/arm/tms320dm320/spi-dm320.c
@@ -92,9 +92,8 @@ int spi_block_transfer(enum SPI_target target,
 void spi_init(void)
 {
     spinlock_init(&spi_lock);
-    /* Set SCLK idle level = 0 */
-    IO_SERIAL0_MODE |= (1<<10);
-    
+    /* Set SCLK idle level = 1 */
+    IO_SERIAL0_MODE &= ~(1<<10);
     /* Enable TX */
     IO_SERIAL0_TX_ENABLE = 0x0001;
 
-- 
2.11.4.GIT