diff options
Diffstat (limited to 'board/mpc8540ads/init.S')
| -rw-r--r-- | board/mpc8540ads/init.S | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/board/mpc8540ads/init.S b/board/mpc8540ads/init.S index 8c2ca65..486fdc8 100644 --- a/board/mpc8540ads/init.S +++ b/board/mpc8540ads/init.S @@ -1,4 +1,5 @@ /* + * Copyright 2004 Freescale Semiconductor. * Copyright (C) 2002,2003, Motorola Inc. * Xianghua Xiao <X.Xiao@motorola.com> * @@ -136,43 +137,58 @@ tlb1_entry: #endif entry_end -/* LAW(Local Access Window) configuration: - * 0000_0000-0800_0000: DDR(128M) -or- larger - * f000_0000-f3ff_ffff: PCI(256M) - * f400_0000-f7ff_ffff: RapidIO(128M) - * f800_0000-ffff_ffff: localbus(128M) - * f800_0000-fbff_ffff: LBC SDRAM(64M) - * fc00_0000-fdef_ffff: LBC BCSR,RTC,etc(31M) - * fdf0_0000-fdff_ffff: CCSRBAR(1M) - * fe00_0000-ffff_ffff: Flash(32M) - * Note: CCSRBAR and L2-as-SRAM don't need configure Local Access - * Window. +/* + * LAW(Local Access Window) configuration: + * + * 0x0000_0000 0x7fff_ffff DDR 2G + * 0x8000_0000 0x9fff_ffff PCI MEM 512M + * 0xe000_0000 0xe000_ffff CCSR 1M + * 0xe200_0000 0xe2ff_ffff PCI IO 16M + * 0xf000_0000 0xf7ff_ffff SDRAM 128M + * 0xf800_0000 0xf80f_ffff BCSR 1M + * 0xff00_0000 0xffff_ffff FLASH (boot bank) 16M + * + * Note: CCSRBAR and L2-as-SRAM don't need a configured Local Access Window. * Note: If flash is 8M at default position(last 8M),no LAW needed. */ #if !defined(CONFIG_SPD_EEPROM) #define LAWBAR0 ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff) -#define LAWAR0 (LAWAR_EN | LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) +#define LAWAR0 (LAWAR_EN | LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) #else #define LAWBAR0 0 #define LAWAR0 ((LAWAR_TRGT_IF_DDR | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN) #endif #define LAWBAR1 ((CFG_PCI_MEM_BASE>>12) & 0xfffff) -#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_256M)) +#define LAWAR1 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_512M)) +/* + * This is not so much the SDRAM map as it is the whole localbus map. + */ #if !defined(CONFIG_RAM_AS_FLASH) #define LAWBAR2 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff) -#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M)) +#define LAWAR2 (LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M)) #else #define LAWBAR2 0 #define LAWAR2 ((LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_128M)) & ~LAWAR_EN) #endif +#define LAWBAR3 ((CFG_PCI_IO_BASE>>12) & 0xfffff) +#define LAWAR3 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_16M)) + +/* + * Rapid IO at 0xc000_0000 for 512 M + */ +#define LAWBAR4 ((CFG_RAPID_IO_BASE>>12) & 0xfffff) +#define LAWAR4 (LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_512M)) + + .section .bootpg, "ax" .globl law_entry law_entry: entry_start - .long 0x03 - .long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2 + .long 0x05 + .long LAWBAR0,LAWAR0,LAWBAR1,LAWAR1,LAWBAR2,LAWAR2,LAWBAR3,LAWAR3 + .long LAWBAR4,LAWAR4 entry_end |