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| author | Kristoffer Ericson <kristoffer.ericson@gmail.com> | 2010-11-06 14:24:27 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-11-27 23:35:12 +0100 |
| commit | f4f88921a5d7044962f74c1097d2a1cf86218936 (patch) | |
| tree | 1608c9071d04a95e882b562340cb27632515dc19 | |
| parent | e2c2a95e60678ad2c0b2cdd8f6b62be1ba3fb4ab (diff) | |
| download | u-boot-imx-f4f88921a5d7044962f74c1097d2a1cf86218936.zip u-boot-imx-f4f88921a5d7044962f74c1097d2a1cf86218936.tar.gz u-boot-imx-f4f88921a5d7044962f74c1097d2a1cf86218936.tar.bz2 | |
Fix jornada memory init
* Fix memory initialization. This fixes the problem
with kernel oopses during heavy load.
* Cleanup pinsetup, which for reference is among
other things needed for proper flash erasing.
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
| -rw-r--r-- | board/jornada/setup.S | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/board/jornada/setup.S b/board/jornada/setup.S index 885e02f..cdf5f54 100644 --- a/board/jornada/setup.S +++ b/board/jornada/setup.S @@ -112,12 +112,13 @@ gafr_set: .long 0x08600000 .globl lowlevel_init lowlevel_init: - /* set output and direction of pins */ - ldr r0, PPC_BASE - ldr r1, pin_set_out - str r1, [r0, #PPSR] - ldr r1, pin_set_dir - str r1, [r0, #PPDR] + + /* this is required for flashing */ + ldr r0, PPC_BASE + ldr r1, pin_set_out + str r1, [r0, #PPSR] + ldr r1, pin_set_dir + str r1, [r0, #PPDR] /* Setting up the memory and stuff */ /***********************************/ @@ -190,6 +191,11 @@ lowlevel_init: ldr r3, [r2] .endr + ldr r2, [r0, #MDCNFG] + orr r2, r2, #0x00000003 + orr r2, r2, #0x00030000 + str r2, [r0, #MDCNFG] + ldr r1, msc0 str r1, [r0, #MSC0] ldr r1, msc1 @@ -198,13 +204,7 @@ lowlevel_init: str r1, [r0, #MSC2] ldr r1, smcnfg str r1, [r0, #SMCNFG] - ldr r1, mdcnfg - str r1, [r0, #MDCNFG] ldr r1, mecr str r1, [r0, #MECR] - /* enable SDRAM */ - orr r1, r1, #0x00000001 - str r1, [r0, #MDCNFG] - mov pc, lr |