From b05f86083439db939c9adc55f603119cb0855180 Mon Sep 17 00:00:00 2001
From: wodz <wodz@a1c6a512-1295-4272-9138-f99709370657>
Date: Mon, 10 May 2010 13:24:44 +0000
Subject: [PATCH] HD200 - Disable asm optimised reads as it showed to be
 broken. Enable asm optimised writes. test_disk was failing because of broken
 read routine.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25931 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/coldfire/mpio/ata-as-mpio.S | 4 ++--
 firmware/target/coldfire/mpio/ata-target.h  | 9 ++++-----
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/firmware/target/coldfire/mpio/ata-as-mpio.S b/firmware/target/coldfire/mpio/ata-as-mpio.S
index 4a6bd3e613..2a76072918 100644
--- a/firmware/target/coldfire/mpio/ata-as-mpio.S
+++ b/firmware/target/coldfire/mpio/ata-as-mpio.S
@@ -23,6 +23,7 @@
 
     .equ    .ata_port, 0x20000020
     .equ    .swapmask, 0x00FF00FF
+#if 0
     .align  2
     .global copy_read_sectors
     .type   copy_read_sectors,@function
@@ -374,12 +375,12 @@ copy_read_sectors:
 
 .r_end:
     .size   copy_read_sectors,.r_end-copy_read_sectors
+#endif
 
     .align  2
     .global copy_write_sectors
     .type   copy_write_sectors,@function
 
-#if 0
 /* Write a number of words to the ATA data port
  *
  * Utilises line bursts, assumes there is at least one full line to copy.
@@ -754,4 +755,3 @@ copy_write_sectors:
 
 .w_end:
     .size   copy_write_sectors,.w_end-copy_write_sectors
-#endif
diff --git a/firmware/target/coldfire/mpio/ata-target.h b/firmware/target/coldfire/mpio/ata-target.h
index 1fa4c5af41..32e97ff56e 100644
--- a/firmware/target/coldfire/mpio/ata-target.h
+++ b/firmware/target/coldfire/mpio/ata-target.h
@@ -21,9 +21,8 @@
 #ifndef ATA_TARGET_H
 #define ATA_TARGET_H
 
-/* asm optimised read & write loops - we skip this for now*/
-#define ATA_OPTIMIZED_READING
-//#define ATA_OPTIMIZED_WRITING
+/* #define ATA_OPTIMIZED_READING */
+#define ATA_OPTIMIZED_WRITING
 
 #define SWAP_WORDS
 
@@ -72,6 +71,6 @@ void ata_enable(bool on);
 void ata_device_init(void);
 bool ata_is_coldstart(void);
 
-void copy_read_sectors(unsigned char* buf, int wordcount);
-//void copy_write_sectors(const unsigned char* buf, int wordcount);
+/* void copy_read_sectors(unsigned char* buf, int wordcount); */
+void copy_write_sectors(const unsigned char* buf, int wordcount);
 #endif
-- 
2.11.4.GIT