Minimal changes to support sun6i SPI with current sun4i SPI driver.
During testing I faced random spurious timeouts when reading 16MB flash device. When debugging spurious timeouts those values seems to be -1us.
Because timeouts are calculated as unsigned values tiny backward timer jumps causes this kind of issues.
Oskari Lemmela (2): arm: sunxi: allwinner spi driver sun6i support arm: timer: sunxi: fix spurious timeout issues
arch/arm/cpu/armv8/generic_timer.c | 2 +- arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 1 + arch/arm/include/asm/arch-sunxi/clock_sun9i.h | 1 + drivers/spi/Kconfig | 4 +- drivers/spi/sun4i_spi.c | 116 ++++++++++++++++-- 5 files changed, 108 insertions(+), 16 deletions(-)