Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / board / freescale / bsc9131rdb / README

diff --git a/board/freescale/bsc9131rdb/README b/board/freescale/bsc9131rdb/README
index 065faa378d1ff1ee3a17297d464cde498eedad6a..4902b98ba1250c79757638c8875dee9646339911 100644 (file)
--- a/board/freescale/bsc9131rdb/README
+++ b/board/freescale/bsc9131rdb/README
@@ -89,10 +89,14 @@ NAND boot
 Building U-boot
 --------------
 To build the u-boot for BSC9131RDB:
-1. NAND Flash
+1. NAND Flash with sysclk 66MHz(J16 on RDB closed, default)
        make BSC9131RDB_NAND
-2. SPI Flash
+2. NAND Flash with sysclk 100MHz(J16 on RDB open)
+       make BSC9131RDB_NAND_SYSCLK100
+3. SPI Flash with sysclk 66MHz(J16 on RDB closed, default)
        make BSC9131RDB_SPIFLASH
+4. SPI Flash with sysclk 100MHz(J16 on RDB open)
+       make BSC9131RDB_SPIFLASH_SYSCLK100
 
 Memory map
 -----------
@@ -107,6 +111,16 @@ Memory map
  0xFF70_0000   0xFF7F_FFFF     PA CCSR                 1M
  0xFF80_0000   0xFFFF_FFFF     Boot Page & NAND Buffer 8M
 
+DDR Memory map
+---------------
+ 0x0000_0000   0x36FF_FFFF     Memory passed onto Linux
+ 0x3700_0000   0x37FF_FFFF     PowerPC-DSP shared control area
+ 0x3800_0000   0x4FFF_FFFF     DSP Private area
+
+ Out of 880M, passed onto Linux, 1hugetlb page of 256M is reserved for
+ data communcation between PowerPC and DSP core.
+ Rest is PowerPC private area.
+
 Flashing Images
 ---------------
 To place a new u-boot image in the NAND flash and then boot