Commits
Ryan Harkin committed f19f389f341
vexpress64: specify CONFIG_SYS_FLASH_CFI_WIDTH Testing on the ARM Versatile Express Juno board showed intermittent CFI flash detection problems. Debug output in exception cases showed that the NOR flash was returning incorrect values to a query command: fwc addr 0000000008000000 cmd f0 f0f0f0f0 32bit x 8 bit fwc addr 0000000008000000 cmd ff ffffffff 32bit x 8 bit fwc addr 0000000008000154 cmd 98 98989898 32bit x 8 bit is= cmd 51(Q) addr 0000000008000040 is= 00800051 51515151 fwc addr 0000000008001554 cmd 98 98989898 32bit x 8 bit is= cmd 51(Q) addr 0000000008000040 is= 00800051 51515151 fwc addr 0000000008000000 cmd f0 00f000f0 32bit x 16 bit fwc addr 0000000008000000 cmd ff 00ff00ff 32bit x 16 bit fwc addr 0000000008000154 cmd 98 00980098 32bit x 16 bit is= cmd 51(Q) addr 0000000008000040 is= 00800051 00510051 fwc addr 0000000008001554 cmd 98 00980098 32bit x 16 bit is= cmd 51(Q) addr 0000000008000040 is= 00800051 00510051 Debugging showed that the problem could be solved by preventing u-boot from scanning different flash widths by specifying CONFIG_SYS_FLASH_CFI_WIDTH so that only using the 'correct' width was used. Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>