From 8f371b18503763b246b4fefa78da1b049a74ef48 Mon Sep 17 00:00:00 2001 From: Stephan Linz Date: Sun, 1 Jul 2012 16:44:37 +0200 Subject: microblaze: Expand and correct configuration comments - fix CONFIG_SYS_MALLOC_BASE from 0x11FB_F000 to 0x13EF_F000 - add new size calculation for CONFIG_SYS_MONITOR_LEN and CONFIG_SYS_MALLOC_LEN derived from SIZE - change CONFIG_SYS_MONITOR_BASE and CONFIG_SYS_MALLOC_BASE calculation to a symbolic equation with the corresponding _LEN definitions - add a "CFI flash memory layout - Example" comment Signed-off-by: Stephan Linz --- include/configs/microblaze-generic.h | 36 +++++++++++++++++++++++++++++------- 1 file changed, 29 insertions(+), 7 deletions(-) (limited to 'include/configs/microblaze-generic.h') diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h index 2fd2279a47..1de6c697ed 100644 --- a/include/configs/microblaze-generic.h +++ b/include/configs/microblaze-generic.h @@ -122,15 +122,19 @@ /* * memory layout - Example - * CONFIG_SYS_TEXT_BASE = 0x1200_0000; + * CONFIG_SYS_TEXT_BASE = 0x1200_0000; defined in config.mk * CONFIG_SYS_SRAM_BASE = 0x1000_0000; - * CONFIG_SYS_SRAM_SIZE = 0x0400_0000; + * CONFIG_SYS_SRAM_SIZE = 0x0400_0000; 64MB + * + * CONFIG_SYS_MONITOR_LEN = 0x40000 + * CONFIG_SYS_MALLOC_LEN = 3 * CONFIG_SYS_MONITOR_LEN = 0xC0000 * * CONFIG_SYS_GBL_DATA_OFFSET = 0x1000_0000 + 0x0400_0000 - 0x1000 = 0x13FF_F000 - * CONFIG_SYS_MONITOR_BASE = 0x13FF_F000 - 0x40000 = 0x13FB_F000 - * CONFIG_SYS_MALLOC_BASE = 0x13FB_F000 - 0x40000 = 0x13F7_F000 + * CONFIG_SYS_MONITOR_BASE = 0x13FF_F000 - CONFIG_SYS_MONITOR_LEN = 0x13FB_F000 + * CONFIG_SYS_MALLOC_BASE = 0x13FB_F000 - CONFIG_SYS_MALLOC_LEN = 0x13EF_F000 * * 0x1000_0000 CONFIG_SYS_SDRAM_BASE + * MEMTEST_AREA 64kB * FREE * 0x1200_0000 CONFIG_SYS_TEXT_BASE * U-BOOT code @@ -138,9 +142,9 @@ * FREE * * STACK - * 0x13F7_F000 CONFIG_SYS_MALLOC_BASE - * MALLOC_AREA 256kB Alloc - * 0x11FB_F000 CONFIG_SYS_MONITOR_BASE + * 0x13EF_F000 CONFIG_SYS_MALLOC_BASE + * MALLOC_AREA 768kB Alloc + * 0x13FB_F000 CONFIG_SYS_MONITOR_BASE * MONITOR_CODE 256kB Env * 0x13FF_F000 CONFIG_SYS_GBL_DATA_OFFSET * GLOBAL_DATA 4kB bd, gd @@ -173,6 +177,24 @@ /* stack */ #define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_MALLOC_BASE +/* + * CFI flash memory layout - Example + * CONFIG_SYS_FLASH_BASE = 0x2200_0000; + * CONFIG_SYS_FLASH_SIZE = 0x0080_0000; 8MB + * + * SECT_SIZE = 0x20000; 128kB is one sector + * CONFIG_ENV_SIZE = SECT_SIZE; 128kB environment store + * + * 0x2200_0000 CONFIG_SYS_FLASH_BASE + * FREE 256kB + * 0x2204_0000 CONFIG_ENV_ADDR + * ENV_AREA 128kB + * 0x2206_0000 + * FREE + * 0x2280_0000 CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE + * + */ + #ifdef FLASH # define CONFIG_SYS_FLASH_BASE XILINX_FLASH_START # define CONFIG_SYS_FLASH_SIZE XILINX_FLASH_SIZE -- cgit v1.2.1