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authorBenoît Thébaudeau <benoit.thebaudeau@advansee.com>2012-08-20 09:00:57 +0000
committerTom Rini <trini@ti.com>2012-10-15 11:54:14 -0700
commit85d993cef9b8e16431800dfc23e90e23bb144357 (patch)
tree010a17f5423b84c8b12f857f104ec6a6f5340ba7 /board/karo
parent9e0081d573442e7234355f0a043218d15df03933 (diff)
downloadblackbird-obmc-uboot-85d993cef9b8e16431800dfc23e90e23bb144357.tar.gz
blackbird-obmc-uboot-85d993cef9b8e16431800dfc23e90e23bb144357.zip
mx25: Clean up lowlevel_init
Clean up mx25 lowlevel_init: - Add comments. - Do not use write32 repeatedly with the same value in order not to increase code size. - Make register values configurable. - Use macro parameters with default values instead of literal constants. - Use defined macros instead of duplicating code. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Cc: John Rigby <jcrigby@gmail.com> Cc: Matthias Weisser <weisserm@arcor.de>
Diffstat (limited to 'board/karo')
-rw-r--r--board/karo/tx25/lowlevel_init.S34
1 files changed, 3 insertions, 31 deletions
diff --git a/board/karo/tx25/lowlevel_init.S b/board/karo/tx25/lowlevel_init.S
index eb3f187806..3e46ed9774 100644
--- a/board/karo/tx25/lowlevel_init.S
+++ b/board/karo/tx25/lowlevel_init.S
@@ -22,37 +22,7 @@
*/
#include <asm/macro.h>
-
-.macro init_aips
- write32 0x43f00000, 0x77777777
- write32 0x43f00004, 0x77777777
- write32 0x43f00000, 0x77777777
- write32 0x53f00004, 0x77777777
-.endm
-
-.macro init_max
- write32 0x43f04000, 0x43210
- write32 0x43f04100, 0x43210
- write32 0x43f04200, 0x43210
- write32 0x43f04300, 0x43210
- write32 0x43f04400, 0x43210
-
- write32 0x43f04010, 0x10
- write32 0x43f04110, 0x10
- write32 0x43f04210, 0x10
- write32 0x43f04310, 0x10
- write32 0x43f04410, 0x10
-
- write32 0x43f04800, 0x0
- write32 0x43f04900, 0x0
- write32 0x43f04a00, 0x0
- write32 0x43f04b00, 0x0
- write32 0x43f04c00, 0x0
-.endm
-
-.macro init_m3if
- write32 0xb8003000, 0x1
-.endm
+#include <asm/arch/macro.h>
.macro init_clocks
/*
@@ -64,6 +34,8 @@
* 0x00600000 makes CLKO parent clk the USB clk
*/
write32 0x53f80064, 0x45600000
+
+ /* CCTL: ARM = 399 MHz, AHB = 133 MHz */
write32 0x53f80008, 0x20034000
/*
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