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Fix jornada memory init

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* 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>
This commit is contained in:
Kristoffer Ericson 2010-11-06 14:24:27 +01:00 • committed by Wolfgang Denk
parent e2c2a95e60
commit f4f88921a5
1 changed files with 12 additions and 12 deletions
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24
board/jornada/setup.S
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@ -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