On Sat, 4 Mar 2023 at 10:40, Pali Rohár pali@kernel.org wrote:
Boot configuration stored in EXT_CSC register is completely ignored by BootROM:
https://lore.kernel.org/u-boot/CAOAjy5SYPPzWKok-BSGYwZwcKOQt_aZPgh6FTbrFd3F=...
Reflect this eMMC booting in documentation and in the code.
Martin, can you test this patch series if SPL and main U-Boot is loaded from the same eMMC HW partition?
boot0: u-boot
Works fine, no issues.
boot0: zeroed boot1: u-boot user: zeroed
It succeeds, eventually... ============================== BootROM - 1.73
Booting from MMC BootROM: Bad header at offset 00000000 BootROM: Bad header at offset 00200000 Switching BootPartitions.
U-Boot SPL 2023.04-rc3-00159-gd1653548d2-dirty (Mar 05 2023 - 11:50:45 +1000) High speed PHY - Version: 2.0 EEPROM TLV detection failed: Using static config for Clearfog Pro. Detected Device ID 6828 board SerDes lanes topology details: | Lane # | Speed | Type | -------------------------------- | 0 | 3 | SATA0 | | 1 | 0 | SGMII1 | | 2 | 5 | PCIe1 | | 3 | 5 | USB3 HOST1 | | 4 | 5 | PCIe2 | | 5 | 0 | SGMII2 | -------------------------------- High speed PHY - Ended Successfully mv_ddr: 14.0.0 DDR3 Training Sequence - Switching XBAR Window to FastPath Window mv_ddr: completed successfully Trying to boot from MMC1 ERROR: Invalid kwbimage v1 mmc_load_image_raw_sector: mmc block read error spl: mmc: wrong boot mode Trying to boot from BOOTROM Returning to BootROM (return address 0xffff05c4)... Timeout waiting card ready BootROM: Image checksum verification PASSED
U-Boot 2023.04-rc3-00159-gd1653548d2-dirty (Mar 05 2023 - 11:50:45 +1000)
SoC: MV88F6828-A0 at 1600 MHz DRAM: 1 GiB (800 MHz, 32-bit, ECC not enabled) Core: 38 devices, 22 uclasses, devicetree: separate MMC: mv_sdh: 0 Loading Environment from MMC... *** Warning - bad CRC, using default environment
Model: SolidRun Clearfog A1 Board: SolidRun Clearfog Pro Net: Warning: ethernet@70000 (eth1) using random MAC address - 12:07:8b:f9:7a:6f eth1: ethernet@70000 Warning: ethernet@30000 (eth2) using random MAC address - ee:ed:f3:bb:c2:af , eth2: ethernet@30000 Warning: ethernet@34000 (eth3) using random MAC address - ae:34:b9:bb:28:c6 , eth3: ethernet@34000 Hit any key to stop autoboot: 0 => ==============================
Between "Returning to BootROM" and "Timeout waiting card ready" takes around 315 seconds. That's long enough that I thought it had hung completely and I only noticed it continue because I left it running while working on something else. I tried several things to reduce this timeout, including reverting to the "non-removable" dts for shdci, but nothing seems to affect it.
When bootloader is stored on Boot 0, then SPL should take care of
loading and executing main U-Boot. When it is stored on Boot 1 or User Data then SPL should return back to BootROM and let BootROM to load and execute main U-Boot.
Pali Rohár (2): tools: kwboot: Fix MMC HW boot partitions info arm: mvebu: spl: Load proper U-Boot from eMMC Boot 0 partition
arch/arm/mach-mvebu/Kconfig | 1 + arch/arm/mach-mvebu/spl.c | 13 +++++++------ tools/kwboot.c | 6 +++--- 3 files changed, 11 insertions(+), 9 deletions(-)
-- 2.20.1