diff options
| author | Troy Kisky | 2012-05-18 13:21:59 +0000 |
|---|---|---|
| committer | Albert ARIBAUD | 2012-07-07 14:07:22 +0200 |
| commit | d5b069ecb4199f1672fd98041bd0037bd33d2f0f (patch) | |
| tree | e69184730c00381d3d7c0d65c5a692eca3686ec8 /arch/arm | |
| parent | e843d0f7ee1b67500d5cbbb20320df17ecbdf32c (diff) | |
DaVinci: fix ddr2 vtp i/o calibration
Previously, only the low 5 bits (NCH) were being transfered
from DDRVTPR to DDRVTPIOCR, the bits 5-9 where zeroed.
VTP_RECAL should be bit 15, not 18.
The only mainline board affected by this change is davinci_sonata.
The other Davinci boards define CONFIG_SKIP_LOWLEVEL_INIT.
However, if the program that loads u-boot on these boards
copied the code from u-boot, they will need fixed as well.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Please get tested by acks before applying, where tested by
means an overnight memory test.
Thanks
Troy
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S b/arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S index 5b39484501c..0e45426fbc9 100644 --- a/arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S +++ b/arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S @@ -523,9 +523,8 @@ VTPLock: ldr r6, DDRVTPR ldr r7, [r6] - and r7, r7, $0x1f - and r8, r7, $0x3e0 - orr r8, r7, r8 + mov r8, r7, LSL #32-10 + mov r8, r8, LSR #32-10 /* grab low 10 bits */ ldr r7, VTP_RECAL orr r8, r7, r8 ldr r7, VTP_EN @@ -644,7 +643,7 @@ VTP_LOCK_COUNT: VTP_MASK: .word 0xffffdfff VTP_RECAL: - .word 0x40000 + .word 0x08000 VTP_EN: .word 0x02000 CFGTEST: |