diff options
Diffstat (limited to 'cpu/arm926ejs/davinci/lowlevel_init.S')
| -rw-r--r-- | cpu/arm926ejs/davinci/lowlevel_init.S | 79 |
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 |