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| author | Ashish Kumar <Ashish.Kumar@nxp.com> | 2017-11-06 07:48:43 (GMT) |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-11-15 18:51:46 (GMT) |
| commit | 099f4093a59c7620841de863d431eab578f5fb24 (patch) | |
| tree | 08758247be722705e23a65b86292400801e8a81b /arch | |
| parent | f65425fb46b890c0ba3fa49cd4ced4c99acb3cfd (diff) | |
| download | u-boot-099f4093a59c7620841de863d431eab578f5fb24.tar.xz | |
armv8: ls1088ardb: Add SD boot support for ls1088
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Raghav Dogra <raghav.dogra@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 30e71b2..20d60b1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -931,6 +931,7 @@ config TARGET_LS1088ARDB select ARMV8_MULTIENTRY select ARCH_MISC_INIT select BOARD_LATE_INIT + select SUPPORT_SPL help Support for NXP LS1088ARDB platform. The LS1088A Reference design board (RDB) is a high-performance diff --git a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 index 7867c37..522760b 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 +++ b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.lsch3 @@ -201,6 +201,50 @@ nand write <u-boot image in memory> 80000 <size of u-boot image> Notice the difference from QDS is SRC, SRC_ADDR and the offset of u-boot image to match board NAND device with 4KB/page, block size 512KB. +Booting from SD/eMMC +------------------- +Booting from SD/eMMC requires two images, RCW and u-boot-with-spl.bin. +The difference between SD boot RCW image and QSPI-NOR boot image is the +PBI command sequence. Below is one example for PBI commands for RDB +and QDS which uses SD device with block size 512. Block location can be +calculated by dividing offset with block size. + +1) Block Copy: SRC=0x0040, SRC_ADDR=0x00100000, DEST_ADDR=0x1800a000, +BLOCK_SIZE=0x00016000 + +This command copies u-boot image from SD device into OCRAM. The values +need to adjust accordingly for SD/eMMC + +SRC should match the cfg_rcw_src, the reset config pins. + The value for source(SRC) can be 0x0040 or 0x0041 + depending upon SD or eMMC. +SRC_ADDR is the offset of u-boot-with-spl.bin image in SD device. + In the example above, 1MB. This is same as QSPI-NOR. +DEST_ADDR is configured at 0x1800a000, matching bootloc set above. +BLOCK_SIZE is the size to be copied by PBI. + +2) CCSR 4-byte write to 0x01e00404, data=0x00000000 +3) CCSR 4-byte write to 0x01e00400, data=0x1800a000 +The above two commands set bootloc register to 0x00000000_1800a000 where +the u-boot code will be running in OCRAM. + + +RCW image should be written at 8th block of device(SD/eMMC). Example of +using u-boot command + +mmc erase 0x8 0x10 +mmc write <rcw image in memory> 0x8 <size of rcw in block count typical value=10> + +To form the SD-Boot image, build u-boot with SD config, for example, +ls1088ardb_sdcard_qspi_defconfig. The image needed is u-boot-with-spl.bin. +The u-boot image should be written to match SRC_ADDR, in above example +offset 0x100000 in other work it means block location 0x800 + +mmc erase 0x800 0x1800 +mmc write <u-boot image in memory> 0x800 <size of u-boot image in block count> + +With these two images in SD/eMMC device, the board can boot from SD/eMMC. + MMU Translation Tables ====================== |