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authorWolfgang Denk <wd@denx.de>2008-04-08 00:05:42 +0200
committerWolfgang Denk <wd@denx.de>2008-04-08 00:05:42 +0200
commit62479b181460f5bf99517b68059d5ba87908edd3 (patch)
treea68933d5d6b6ab8d06c107c421d6abb5d1669e74 /cpu/arm926ejs/davinci/lowlevel_init.S
parent5c395393cc9b85b14c5481dbcab6b67b54f31622 (diff)
parent066bebd6353e33af3adefc3404560871699e9961 (diff)
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Merge branch 'master' of git://www.denx.de/git/u-boot-arm
Diffstat (limited to 'cpu/arm926ejs/davinci/lowlevel_init.S')
-rw-r--r--cpu/arm926ejs/davinci/lowlevel_init.S79
1 files changed, 51 insertions, 28 deletions
diff --git a/cpu/arm926ejs/davinci/lowlevel_init.S b/cpu/arm926ejs/davinci/lowlevel_init.S
index a87c112..79bc692 100644
--- a/cpu/arm926ejs/davinci/lowlevel_init.S
+++ b/cpu/arm926ejs/davinci/lowlevel_init.S
@@ -3,6 +3,11 @@
*
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*
+ * Copyright (C) 2008 Prodrive BV <pv@prodrive.nl>
+ * Changed:
+ * Made board specific defines such as DDR timing and PLL
+ * dividers. These should be set in the board config file
+ *
* Partially based on TI sources, original copyrights follow:
*/
@@ -156,17 +161,17 @@ WaitPPL2Loop:
/* Program the PLL Multiplier */
ldr r6, PLL2_PLLM
- mov r2, $0x17 /* 162 MHz */
+ mov r2, $CFG_DAVINCI_PLL2_PLLM
str r2, [r6]
/* Program the PLL2 Divisor Value */
ldr r6, PLL2_DIV2
- mov r3, $0x01
+ mov r3, $CFG_DAVINCI_PLL2_DIV2
str r3, [r6]
/* Program the PLL2 Divisor Value */
ldr r6, PLL2_DIV1
- mov r4, $0x0b /* 54 MHz */
+ mov r4, $CFG_DAVINCI_PLL2_DIV1
str r4, [r6]
/* PLL2 DIV2 MMR */
@@ -273,7 +278,7 @@ checkDDRStatClkStop:
bne checkDDRStatClkStop
/*------------------------------------------------------*
- * Program DDR2 MMRs for 162MHz Setting *
+ * Program DDR2 MMRs *
*------------------------------------------------------*/
/* Program PHY Control Register */
@@ -288,12 +293,12 @@ checkDDRStatClkStop:
/* Program SDRAM TIM-0 Config Register */
ldr r6, SDTIM0
- ldr r7, SDTIM0_VAL_162MHz
+ ldr r7, SDTIM0_VAL
str r7, [r6]
/* Program SDRAM TIM-1 Config Register */
ldr r6, SDTIM1
- ldr r7, SDTIM1_VAL_162MHz
+ ldr r7, SDTIM1_VAL
str r7, [r6]
/* Program the SDRAM Bank Config Control Register */
@@ -435,7 +440,7 @@ WaitLoop:
/* Program the PLL Multiplier */
ldr r6, PLL1_PLLM
- mov r3, $0x15 /* For 594MHz */
+ mov r3, $CFG_DAVINCI_PLL1_PLLM
str r3, [r6]
/* Wait for PLL to Reset Properly */
@@ -467,7 +472,7 @@ PLL1Lock:
nop
/*------------------------------------------------------*
- * AEMIF configuration for NOR Flash (double check) *
+ * AEMIF configuration for NAND/NOR Flash *
*------------------------------------------------------*/
ldr r0, _PINMUX0
ldr r1, _DEV_SETTING
@@ -479,6 +484,12 @@ PLL1Lock:
orr r2, r2, r1
str r2, [r0]
+ ldr r0, ACFG2
+ ldr r1, ACFG2_VAL
+ ldr r2, [r0]
+ and r1, r2, r1
+ str r1, [r0]
+
ldr r0, ACFG3
ldr r1, ACFG3_VAL
ldr r2, [r0]
@@ -497,6 +508,12 @@ PLL1Lock:
and r1, r2, r1
str r1, [r0]
+ ldr r0, NANDFCR
+ ldr r1, NANDFCR_VAL
+ ldr r2, [r0]
+ and r1, r2, r1
+ str r1, [r0]
+
/*--------------------------------------*
* VTP manual Calibration *
*--------------------------------------*/
@@ -560,24 +577,36 @@ _PINMUX1:
.word 0x01c40004 /* Device Configuration Registers */
_DEV_SETTING:
- .word 0x00000c1f
+ .word CFG_DAVINCI_PINMUX_0
WAITCFG:
.word 0x01e00004
WAITCFG_VAL:
- .word 0
+ .word CFG_DAVINCI_WAITCFG
+ACFG2:
+ .word 0x01e00010
+ACFG2_VAL:
+ .word CFG_DAVINCI_ACFG2
ACFG3:
.word 0x01e00014
ACFG3_VAL:
- .word 0x3ffffffd
+ .word CFG_DAVINCI_ACFG3
ACFG4:
.word 0x01e00018
ACFG4_VAL:
- .word 0x3ffffffd
+ .word CFG_DAVINCI_ACFG4
ACFG5:
.word 0x01e0001c
ACFG5_VAL:
- .word 0x3ffffffd
+ .word CFG_DAVINCI_ACFG5
+NANDFCR:
+ .word 0x01e00060
+NANDFCR_VAL:
+#ifdef CFG_DAVINCI_NANDCE
+ .word (1 << (CFG_DAVINCI_NANDCE - 2))
+#else
+ .word 0x00000000
+#endif
MDCTL_DDR2:
.word 0x01c41a34
@@ -599,33 +628,27 @@ PSC_FLAG_CLEAR:
PSC_GEM_FLAG_CLEAR:
.word 0xfffffeff
-/* DDR2 MMR & CONFIGURATION VALUES, 162 MHZ clock */
+/* DDR2 MMR & CONFIGURATION VALUES */
DDRCTL:
.word 0x200000e4
DDRCTL_VAL:
- .word 0x50006405
+ .word CFG_DAVINCI_DDRCTL
SDREF:
.word 0x2000000c
SDREF_VAL:
- .word 0x000005c3
+ .word CFG_DAVINCI_SDREF
SDCFG:
.word 0x20000008
SDCFG_VAL:
-#ifdef DDR_4BANKS
- .word 0x00178622
-#elif defined DDR_8BANKS
- .word 0x00178632
-#else
-#error "Unknown DDR configuration!!!"
-#endif
+ .word CFG_DAVINCI_SDCFG
SDTIM0:
.word 0x20000010
-SDTIM0_VAL_162MHz:
- .word 0x28923211
+SDTIM0_VAL:
+ .word CFG_DAVINCI_SDTIM0
SDTIM1:
.word 0x20000014
-SDTIM1_VAL_162MHz:
- .word 0x0016c722
+SDTIM1_VAL:
+ .word CFG_DAVINCI_SDTIM1
VTPIOCR:
.word 0x200000f0 /* VTP IO Control register */
DDRVTPR:
@@ -699,7 +722,7 @@ PLL2_DIV_MASK:
MMARG_BRF0:
.word 0x01c42010 /* BRF margin mode 0 (R/W)*/
MMARG_BRF0_VAL:
- .word 0x00444400
+ .word CFG_DAVINCI_MMARG_BRF0
DDR2_START_ADDR:
.word 0x80000000