mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
6d82517836
Now that new SPI NOR layer uses stateless 4 byte opcodes by default, don't enable SPI_FLASH_BAR. For SPI controllers that cannot support 4-byte addressing, (stm32_qspi.c, fsl_qspi.c, mtk_qspi.c, ich.c, renesas_rpc_spi.c) add an imply clause to enable SPI_FLASH_BAR so as to not break functionality. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
47 lines
1.7 KiB
Text
47 lines
1.7 KiB
Text
-------------------------------------------------
|
|
Simple steps used to test the QSPI at U-Boot
|
|
-------------------------------------------------
|
|
|
|
For #1, build the patched U-Boot and load MLO/u-boot.img
|
|
|
|
----------------------------------
|
|
Boot from another medium like MMC
|
|
----------------------------------
|
|
|
|
U-Boot# mmc dev 0
|
|
mmc0 is current device
|
|
U-Boot# fatload mmc 0 0x82000000 MLO
|
|
reading MLO
|
|
55872 bytes read in 8 ms (6.7 MiB/s)
|
|
U-Boot# fatload mmc 0 0x83000000 u-boot.img
|
|
reading u-boot.img
|
|
248600 bytes read in 19 ms (12.5 MiB/s)
|
|
|
|
--------------------------------------------------
|
|
Commands to erase/write u-boot/mlo to flash device
|
|
--------------------------------------------------
|
|
U-Boot# sf probe 0
|
|
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB, mapped at 5c000000
|
|
U-Boot# sf erase 0 0x10000
|
|
SF: 65536 bytes @ 0x0 Erased: OK
|
|
U-Boot# sf erase 0x20000 0x10000
|
|
SF: 65536 bytes @ 0x20000 Erased: OK
|
|
U-Boot# sf erase 0x30000 0x10000
|
|
SF: 65536 bytes @ 0x30000 Erased: OK
|
|
U-Boot# sf erase 0x40000 0x10000
|
|
SF: 65536 bytes @ 0x40000 Erased: OK
|
|
U-Boot# sf erase 0x50000 0x10000
|
|
SF: 65536 bytes @ 0x50000 Erased: OK
|
|
U-Boot# sf erase 0x60000 0x10000
|
|
SF: 65536 bytes @ 0x60000 Erased: OK
|
|
U-Boot# sf write 82000000 0 0x10000
|
|
SF: 65536 bytes @ 0x0 Written: OK
|
|
U-Boot# sf write 83000000 0x20000 0x60000
|
|
SF: 393216 bytes @ 0x20000 Written: OK
|
|
|
|
For #2, set sysboot to QSPI-1 boot mode(SYSBOOT[5:0] = 100110) and power
|
|
on. ROM should find the GP header at offset 0 and load/execute SPL. SPL
|
|
then detects that ROM was in QSPI-1 mode (boot code 10) and attempts to
|
|
find a U-Boot image header at offset 0x20000 (set in the config file)
|
|
and proceeds to load that image using the U-Boot image payload offset/size
|
|
from the header. It will then start U-Boot.
|