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| author | Scott Wood <scottwood@freescale.com> | 2008-10-27 15:57:08 -0500 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2008-10-29 14:35:56 -0500 |
| commit | 5cdade07b118d07154cb882650f9778cecc8a87c (patch) | |
| tree | 509f1076c366fe8938f834cc74ed9835aba45229 /doc/README.mpc8313erdb | |
| parent | bd78bc6b2aebf5566aac464f936b88dfd97ab0bd (diff) | |
| download | u-boot-imx-5cdade07b118d07154cb882650f9778cecc8a87c.zip u-boot-imx-5cdade07b118d07154cb882650f9778cecc8a87c.tar.gz u-boot-imx-5cdade07b118d07154cb882650f9778cecc8a87c.tar.bz2 | |
mpc8313erdb: Document NAND boot.
Previously, the documentation claimed that NAND boot is not supported.
This is no longer true.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'doc/README.mpc8313erdb')
| -rw-r--r-- | doc/README.mpc8313erdb | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/doc/README.mpc8313erdb b/doc/README.mpc8313erdb index 7c1af17..be7ef32 100644 --- a/doc/README.mpc8313erdb +++ b/doc/README.mpc8313erdb @@ -15,6 +15,18 @@ Freescale MPC8313ERDB Board 4321 4321 (where the '*' indicates the position of the tab of the switch.) + To boot the image at the beginning of NAND flash, use these + DIP switch settings for S3 S4: + + +------+ +------+ + | * | | *** | + | *** | | * | + +------+ ON +------+ ON + 4321 4321 + (where the '*' indicates the position of the tab of the switch.) + + When booting from NAND, use u-boot-nand.bin, not u-boot.bin. + 2. Memory Map The memory map looks like this: @@ -29,6 +41,9 @@ Freescale MPC8313ERDB Board LED Control (CS3) 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M + When booting from NAND, NAND flash is CS0 and NOR flash + is CS1. + 3. Definitions 3.1 Explanation of NEW definitions in: @@ -45,15 +60,20 @@ Freescale MPC8313ERDB Board export CROSS_COMPILE=your-cross-compiler-prefix- make distclean - make MPC8313ERDB_33_config - (or make MPC8313ERDB_66_config, depending on the speed of - the oscillator on your board) + make MPC8313ERDB_XXX_config + (where XXX is: + 33 - 33 MHz oscillator, boot from NOR flash + 66 - 66 MHz oscillator, boot from NOR flash + NAND_33 - 33 MHz oscillator, boot from NAND flash + NAND_66 - 66 MHz oscillator, boot from NAND flash) make 5. Downloading and Flashing Images 5.1 Reflash U-boot Image using U-boot + NOR flash: + =>run tftpflash You may want to try @@ -63,6 +83,15 @@ Freescale MPC8313ERDB Board have an alternate means of programming the flash available if the new u-boot doesn't boot. + NAND flash: + + =>tftpboot $loadaddr <filename> + =>nand erase 0 0x80000 + =>nand write $loadaddr 0 0x80000 + + ...where 0x80000 is the filesize rounded up to + the next 0x20000 increment. + 5.2 Downloading and Booting Linux Kernel Ensure that all networking-related environment variables are set @@ -79,5 +108,4 @@ Freescale MPC8313ERDB Board 6 Notes - Booting from NAND flash is not yet supported. The console baudrate for MPC8313ERDB is 115200bps. |