To support SPI flashes (via the device model) and enable loading of later-stage images from SPI in SPL, we need a few adjustments to the common configuration header for the RK3399: - enable SPL_SPI_LOAD if SPI is enabled for SPL (in rk3399_common) - move CONFIG_SPI and CONFIG_SPI_FLASH (from rk3399_common) to defconfig
Changes in v2: - fixes a wrong macro usage, which caused the SPI module input clock frequency to be significantly higher than intended - frequencies have now been validated using an oscilloscope (keep in mind that all frequencies are derived from a 99MHz module input clock) at the following measurement points: * 1 MHz ... 0.99 MHz * 5 MHz ... 4.95 MHz * 10 MHz ... 9.9 MHz * 30 MHz ... 33 MHz * 50 MHz ... 49.5 MHz - fixes an off-by-one for the RK3399 that cause the SPI module input clock to be misstated as 84MHz (even though it was running at 99MHz)
Jakob Unterwurzacher (2): rockchip: spi: enable support for the rk_spi driver for the RK3399 rockchip: spi: rk3399: move CONFIG_SPI and CONFIG_SPI_FLASH to defconfig
Philipp Tomsich (4): rockchip: clk: rk3399: add clock support for SCLK_SPI1 and SCLK_SPI5 clk: rk3399: fix off-by one during rate calculation in i2c/spi_set_rate rockchip: pinctrl: rk3399: add support for the SPI5 controller rockchip: spl: rk3399: enable SPL_SPI_LOAD if SPI is enabled for SPL
arch/arm/include/asm/arch-rockchip/grf_rk3399.h | 12 +++++ arch/arm/include/asm/arch-rockchip/periph.h | 3 ++ drivers/clk/rockchip/clk_rk3399.c | 71 ++++++++++++++++++++++++- drivers/pinctrl/rockchip/pinctrl_rk3399.c | 17 ++++++ drivers/spi/rk_spi.c | 1 + include/configs/rk3399_common.h | 5 +- 6 files changed, 106 insertions(+), 3 deletions(-)