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-rw-r--r--cpu/arm926ejs/davinci/lowlevel_init.S79
1 files changed, 28 insertions, 51 deletions
diff --git a/cpu/arm926ejs/davinci/lowlevel_init.S b/cpu/arm926ejs/davinci/lowlevel_init.S
index 79bc692..a87c112 100644
--- a/cpu/arm926ejs/davinci/lowlevel_init.S
+++ b/cpu/arm926ejs/davinci/lowlevel_init.S
@@ -3,11 +3,6 @@
*
* 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:
*/
@@ -161,17 +156,17 @@ WaitPPL2Loop:
/* Program the PLL Multiplier */
ldr r6, PLL2_PLLM
- mov r2, $CFG_DAVINCI_PLL2_PLLM
+ mov r2, $0x17 /* 162 MHz */
str r2, [r6]
/* Program the PLL2 Divisor Value */
ldr r6, PLL2_DIV2
- mov r3, $CFG_DAVINCI_PLL2_DIV2
+ mov r3, $0x01
str r3, [r6]
/* Program the PLL2 Divisor Value */
ldr r6, PLL2_DIV1
- mov r4, $CFG_DAVINCI_PLL2_DIV1
+ mov r4, $0x0b /* 54 MHz */
str r4, [r6]
/* PLL2 DIV2 MMR */
@@ -278,7 +273,7 @@ checkDDRStatClkStop:
bne checkDDRStatClkStop
/*------------------------------------------------------*
- * Program DDR2 MMRs *
+ * Program DDR2 MMRs for 162MHz Setting *
*------------------------------------------------------*/
/* Program PHY Control Register */
@@ -293,12 +288,12 @@ checkDDRStatClkStop:
/* Program SDRAM TIM-0 Config Register */
ldr r6, SDTIM0
- ldr r7, SDTIM0_VAL
+ ldr r7, SDTIM0_VAL_162MHz
str r7, [r6]
/* Program SDRAM TIM-1 Config Register */
ldr r6, SDTIM1
- ldr r7, SDTIM1_VAL
+ ldr r7, SDTIM1_VAL_162MHz
str r7, [r6]
/* Program the SDRAM Bank Config Control Register */
@@ -440,7 +435,7 @@ WaitLoop:
/* Program the PLL Multiplier */
ldr r6, PLL1_PLLM
- mov r3, $CFG_DAVINCI_PLL1_PLLM
+ mov r3, $0x15 /* For 594MHz */
str r3, [r6]
/* Wait for PLL to Reset Properly */
@@ -472,7 +467,7 @@ PLL1Lock:
nop
/*------------------------------------------------------*
- * AEMIF configuration for NAND/NOR Flash *
+ * AEMIF configuration for NOR Flash (double check) *
*------------------------------------------------------*/
ldr r0, _PINMUX0
ldr r1, _DEV_SETTING
@@ -484,12 +479,6 @@ 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]
@@ -508,12 +497,6 @@ 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 *
*--------------------------------------*/
@@ -577,36 +560,24 @@ _PINMUX1:
.word 0x01c40004 /* Device Configuration Registers */
_DEV_SETTING:
- .word CFG_DAVINCI_PINMUX_0
+ .word 0x00000c1f
WAITCFG:
.word 0x01e00004
WAITCFG_VAL:
- .word CFG_DAVINCI_WAITCFG
-ACFG2:
- .word 0x01e00010
-ACFG2_VAL:
- .word CFG_DAVINCI_ACFG2
+ .word 0
ACFG3:
.word 0x01e00014
ACFG3_VAL:
- .word CFG_DAVINCI_ACFG3
+ .word 0x3ffffffd
ACFG4:
.word 0x01e00018
ACFG4_VAL:
- .word CFG_DAVINCI_ACFG4
+ .word 0x3ffffffd
ACFG5:
.word 0x01e0001c
ACFG5_VAL:
- .word CFG_DAVINCI_ACFG5
-NANDFCR:
- .word 0x01e00060
-NANDFCR_VAL:
-#ifdef CFG_DAVINCI_NANDCE
- .word (1 << (CFG_DAVINCI_NANDCE - 2))
-#else
- .word 0x00000000
-#endif
+ .word 0x3ffffffd
MDCTL_DDR2:
.word 0x01c41a34
@@ -628,27 +599,33 @@ PSC_FLAG_CLEAR:
PSC_GEM_FLAG_CLEAR:
.word 0xfffffeff
-/* DDR2 MMR & CONFIGURATION VALUES */
+/* DDR2 MMR & CONFIGURATION VALUES, 162 MHZ clock */
DDRCTL:
.word 0x200000e4
DDRCTL_VAL:
- .word CFG_DAVINCI_DDRCTL
+ .word 0x50006405
SDREF:
.word 0x2000000c
SDREF_VAL:
- .word CFG_DAVINCI_SDREF
+ .word 0x000005c3
SDCFG:
.word 0x20000008
SDCFG_VAL:
- .word CFG_DAVINCI_SDCFG
+#ifdef DDR_4BANKS
+ .word 0x00178622
+#elif defined DDR_8BANKS
+ .word 0x00178632
+#else
+#error "Unknown DDR configuration!!!"
+#endif
SDTIM0:
.word 0x20000010
-SDTIM0_VAL:
- .word CFG_DAVINCI_SDTIM0
+SDTIM0_VAL_162MHz:
+ .word 0x28923211
SDTIM1:
.word 0x20000014
-SDTIM1_VAL:
- .word CFG_DAVINCI_SDTIM1
+SDTIM1_VAL_162MHz:
+ .word 0x0016c722
VTPIOCR:
.word 0x200000f0 /* VTP IO Control register */
DDRVTPR:
@@ -722,7 +699,7 @@ PLL2_DIV_MASK:
MMARG_BRF0:
.word 0x01c42010 /* BRF margin mode 0 (R/W)*/
MMARG_BRF0_VAL:
- .word CFG_DAVINCI_MMARG_BRF0
+ .word 0x00444400
DDR2_START_ADDR:
.word 0x80000000