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author | Alex Shi <alex.shi@linaro.org> | 2017-02-09 16:21:25 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2017-02-09 16:21:25 +0800 |
commit | 1203868ffa16d93234dc005fba95b6596b87ddb5 (patch) | |
tree | 0e24f2baa99515d0045998361a2294e2b2b25484 /Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt | |
parent | 03b862ce80d27a26f8add26a547b3dc7b4d561d6 (diff) | |
parent | 054f8fe34189a62a0b87700c062a18c3a8421615 (diff) |
Merge branch 'linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-androidlsk-v3.18-17.03-androidlsk-v3.18-17.02-android
Diffstat (limited to 'Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt')
-rw-r--r-- | Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt b/Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt deleted file mode 100644 index efff8ae2713d..000000000000 --- a/Documentation/arm/SH-Mobile/zboot-rom-mmcif.txt +++ /dev/null @@ -1,29 +0,0 @@ -ROM-able zImage boot from MMC ------------------------------ - -An ROM-able zImage compiled with ZBOOT_ROM_MMCIF may be written to MMC and -SuperH Mobile ARM will to boot directly from the MMCIF hardware block. - -This is achieved by the mask ROM loading the first portion of the image into -MERAM and then jumping to it. This portion contains loader code which -copies the entire image to SDRAM and jumps to it. From there the zImage -boot code proceeds as normal, uncompressing the image into its final -location and then jumping to it. - -This code has been tested on an AP4EB board using the developer 1A eMMC -boot mode which is configured using the following jumper settings. -The board used for testing required a patched mask ROM in order for -this mode to function. - - 8 7 6 5 4 3 2 1 - x|x|x|x|x| |x| -S4 -+-+-+-+-+-+-+- - | | | | |x| |x on - -The zImage must be written to the MMC card at sector 1 (512 bytes) in -vrl4 format. A utility vrl4 is supplied to accomplish this. - -e.g. - vrl4 < zImage | dd of=/dev/sdX bs=512 seek=1 - -A dual-voltage MMC 4.0 card was used for testing. |