From 5bd4ec0c87db5230d8637a5b3b1fda9b4d5484ea Mon Sep 17 00:00:00 2001
From: Jack Halpin <jack.halpin@gmail.com>
Date: Tue, 1 Dec 2009 20:12:25 +0000
Subject: Sansa AMS:  Force sd_enable(true) when using the Debug View HW info
 page so we can read the registers immediately.

Because we turn off the clocks to the SD controllers between disk accesses we were unable to read the MCI_CLOCK registers until there was a disk access.  Now we can read them immediately.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23810 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/as3525/debug-as3525.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

(limited to 'firmware/target')

diff --git a/firmware/target/arm/as3525/debug-as3525.c b/firmware/target/arm/as3525/debug-as3525.c
index 2dda9e4283..0ed51e5898 100644
--- a/firmware/target/arm/as3525/debug-as3525.c
+++ b/firmware/target/arm/as3525/debug-as3525.c
@@ -30,6 +30,7 @@
 #include "pl180.h"
 #include "ascodec-target.h"
 #include "adc.h"
+#include "storage.h"
 
 #define ON "Enabled"
 #define OFF "Disabled"
@@ -51,8 +52,8 @@
 #define CLK_I2SI             8
 #define CLK_I2SO             9
 #define CLK_DBOP             10
-#define CLK_SD_MCLK_NAND    11
-#define CLK_SD_MCLK_MSD     12
+#define CLK_SD_MCLK_NAND     11
+#define CLK_SD_MCLK_MSD      12
 #define CLK_USB              13
 
 #define I2C2_CPSR0      *((volatile unsigned int *)(I2C_AUDIO_BASE + 0x1C))
@@ -289,18 +290,22 @@ bool __dbg_hw_info(void)
 
         lcd_putsf(0, line++, "I2SO: %s      %3dMHz", (CGU_AUDIO & (1<<11)) ?
                                     "on " : "off", calc_freq(CLK_I2SO)/1000000);
-        if(MCI_NAND)
-            last_nand = MCI_NAND;
-                                                /*  MCLK == PCLK  */
+
+        /* Enable SD cards to read the registers */
+        sd_enable(true);
+        last_nand = MCI_NAND;
+#ifdef HAVE_MULTIDRIVE
+        last_sd = MCI_SD;
+#endif
+        sd_enable(false);
+
         lcd_putsf(0, line++, "SD  :%3dMHz    %3dMHz",
-            ((last_nand ? (AS3525_PCLK_FREQ/ 1000000): 0) /
+            ((AS3525_PCLK_FREQ/ 1000000) /
             ((last_nand & MCI_CLOCK_BYPASS)? 1:(((last_nand & 0xff)+1) * 2))),
             calc_freq(CLK_SD_MCLK_NAND)/1000000);
 #ifdef HAVE_MULTIDRIVE
-        if(MCI_SD)
-            last_sd = MCI_SD;
         lcd_putsf(0, line++, "uSD :%3dMHz    %3dMHz",
-            ((last_sd ? (AS3525_PCLK_FREQ/ 1000000): 0) /
+            ((AS3525_PCLK_FREQ/ 1000000) /
             ((last_sd & MCI_CLOCK_BYPASS) ? 1: (((last_sd & 0xff) + 1) * 2))),
             calc_freq(CLK_SD_MCLK_MSD)/1000000);
 #endif
-- 
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