diff options
Diffstat (limited to 'include/configs/makalu.h')
| -rw-r--r-- | include/configs/makalu.h | 114 |
1 files changed, 100 insertions, 14 deletions
diff --git a/include/configs/makalu.h b/include/configs/makalu.h index af066f3a8a..566e611c79 100644 --- a/include/configs/makalu.h +++ b/include/configs/makalu.h @@ -1,4 +1,7 @@ /* + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + * * (C) Copyright 2007-2008 * Stefan Roese, DENX Software Engineering, sr@denx.de. * @@ -52,20 +55,56 @@ #define CFG_MONITOR_BASE (TEXT_BASE) /*----------------------------------------------------------------------- - * Initial RAM & stack pointer - *----------------------------------------------------------------------*/ -#define CFG_INIT_RAM_ADDR 0x02000000 /* inside of SDRAM */ -#define CFG_INIT_RAM_END (4 << 10) + * Initial RAM & Stack Pointer Configuration Options + * + * There are traditionally three options for the primordial + * (i.e. initial) stack usage on the 405-series: + * + * 1) On-chip Memory (OCM) (i.e. SRAM) + * 2) Data cache + * 3) SDRAM + * + * For the 405EX(r), there is no OCM, so we are left with (2) or (3) + * the latter of which is less than desireable since it requires + * setting up the SDRAM and ECC in assembly code. + * + * To use (2), define 'CFG_INIT_DCACHE_CS' to be an unused chip + * select on the External Bus Controller (EBC) and then select a + * value for 'CFG_INIT_RAM_ADDR' outside of the range of valid, + * physical SDRAM. Otherwise, undefine 'CFG_INIT_DCACHE_CS' and + * select a value for 'CFG_INIT_RAM_ADDR' within the range of valid, + * physical SDRAM to use (3). + *-----------------------------------------------------------------------*/ + +#define CFG_INIT_DCACHE_CS 4 + +#if defined(CFG_INIT_DCACHE_CS) +#define CFG_INIT_RAM_ADDR (CFG_SDRAM_BASE + ( 1 << 30)) /* 1 GiB */ +#else +#define CFG_INIT_RAM_ADDR (CFG_SDRAM_BASE + (32 << 20)) /* 32 MiB */ +#endif /* defined(CFG_INIT_DCACHE_CS) */ + +#define CFG_INIT_RAM_END (4 << 10) /* 4 KiB */ #define CFG_GBL_DATA_SIZE 256 /* num bytes initial data */ #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) -/* reserve some memory for POST and BOOT limit info */ -#define CFG_INIT_SP_OFFSET (CFG_GBL_DATA_OFFSET - 16) -/* extra data in init-ram */ -#define CFG_POST_WORD_ADDR (CFG_GBL_DATA_OFFSET - 4) -#define CFG_POST_MAGIC (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET - 8) -#define CFG_POST_VAL (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET - 12) -#define CFG_OCM_DATA_ADDR CFG_INIT_RAM_ADDR /* for commproc.c */ +/* + * If the data cache is being used for the primordial stack and global + * data area, the POST word must be placed somewhere else. The General + * Purpose Timer (GPT) is unused by u-boot and the kernel and preserves + * its compare and mask register contents across reset, so it is used + * for the POST word. + */ + +#if defined(CFG_INIT_DCACHE_CS) +# define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET +# define CFG_POST_ALT_WORD_ADDR (CFG_PERIPHERAL_BASE + GPT0_COMP6) +#else +# define CFG_INIT_EXTRA_SIZE 16 +# define CFG_INIT_SP_OFFSET (CFG_GBL_DATA_OFFSET - CFG_INIT_EXTRA_SIZE) +# define CFG_POST_WORD_ADDR (CFG_GBL_DATA_OFFSET - 4) +# define CFG_OCM_DATA_ADDR CFG_INIT_RAM_ADDR +#endif /* defined(CFG_INIT_DCACHE_CS) */ /*----------------------------------------------------------------------- * Serial Port @@ -113,7 +152,55 @@ /*----------------------------------------------------------------------- * DDR SDRAM *----------------------------------------------------------------------*/ -#define CFG_MBYTES_SDRAM 256 +#define CFG_MBYTES_SDRAM (256) /* 256MB */ + +#define CFG_SDRAM0_MB0CF_BASE (( 0 << 20) + CFG_SDRAM_BASE) +#define CFG_SDRAM0_MB1CF_BASE ((128 << 20) + CFG_SDRAM_BASE) + +/* DDR1/2 SDRAM Device Control Register Data Values */ +#define CFG_SDRAM0_MB0CF ((CFG_SDRAM0_MB0CF_BASE >> 3) | \ + SDRAM_RXBAS_SDSZ_128MB | \ + SDRAM_RXBAS_SDAM_MODE2 | \ + SDRAM_RXBAS_SDBE_ENABLE) +#define CFG_SDRAM0_MB1CF ((CFG_SDRAM0_MB1CF_BASE >> 3) | \ + SDRAM_RXBAS_SDSZ_128MB | \ + SDRAM_RXBAS_SDAM_MODE2 | \ + SDRAM_RXBAS_SDBE_ENABLE) +#define CFG_SDRAM0_MB2CF SDRAM_RXBAS_SDBE_DISABLE +#define CFG_SDRAM0_MB3CF SDRAM_RXBAS_SDBE_DISABLE +#define CFG_SDRAM0_MCOPT1 0x04322000 +#define CFG_SDRAM0_MCOPT2 0x00000000 +#define CFG_SDRAM0_MODT0 0x01800000 +#define CFG_SDRAM0_MODT1 0x00000000 +#define CFG_SDRAM0_CODT 0x0080f837 +#define CFG_SDRAM0_RTR 0x06180000 +#define CFG_SDRAM0_INITPLR0 0xa8380000 +#define CFG_SDRAM0_INITPLR1 0x81900400 +#define CFG_SDRAM0_INITPLR2 0x81020000 +#define CFG_SDRAM0_INITPLR3 0x81030000 +#define CFG_SDRAM0_INITPLR4 0x81010404 +#define CFG_SDRAM0_INITPLR5 0x81000542 +#define CFG_SDRAM0_INITPLR6 0x81900400 +#define CFG_SDRAM0_INITPLR7 0x8D080000 +#define CFG_SDRAM0_INITPLR8 0x8D080000 +#define CFG_SDRAM0_INITPLR9 0x8D080000 +#define CFG_SDRAM0_INITPLR10 0x8D080000 +#define CFG_SDRAM0_INITPLR11 0x81000442 +#define CFG_SDRAM0_INITPLR12 0x81010780 +#define CFG_SDRAM0_INITPLR13 0x81010400 +#define CFG_SDRAM0_INITPLR14 0x00000000 +#define CFG_SDRAM0_INITPLR15 0x00000000 +#define CFG_SDRAM0_RQDC 0x80000038 +#define CFG_SDRAM0_RFDC 0x00000209 +#define CFG_SDRAM0_RDCC 0x40000000 +#define CFG_SDRAM0_DLCR 0x030000a5 +#define CFG_SDRAM0_CLKTR 0x80000000 +#define CFG_SDRAM0_WRDTR 0x00000000 +#define CFG_SDRAM0_SDTR1 0x80201000 +#define CFG_SDRAM0_SDTR2 0x32204232 +#define CFG_SDRAM0_SDTR3 0x080b0d1a +#define CFG_SDRAM0_MMODE 0x00000442 +#define CFG_SDRAM0_MEMODE 0x00000404 /*----------------------------------------------------------------------- * I2C @@ -244,8 +331,7 @@ #define CONFIG_CMD_SNTP /* POST support */ -#define CONFIG_POST (CFG_POST_MEMORY | \ - CFG_POST_CACHE | \ +#define CONFIG_POST (CFG_POST_CACHE | \ CFG_POST_CPU | \ CFG_POST_ETHER | \ CFG_POST_I2C | \ |
