Now that we can easily select an SoC specific SPI0 base address, adding support for the Allwinner R40 is fairly trivial: We set the base address, add this SoC to the ones that use PC23 and enable it in Kconfig.
This allows booting from SPI flash on R40 boards.
Tested on a Bananapi M2 Berry with SPI flash connected to the header pins.
Signed-off-by: Andre Przywara andre.przywara@arm.com --- arch/arm/mach-sunxi/Kconfig | 2 +- arch/arm/mach-sunxi/spl_spi_sunxi.c | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index 16d41b83af..0e07be802f 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -993,7 +993,7 @@ config SPL_STACK_R_ADDR
config SPL_SPI_SUNXI bool "Support for SPI Flash on Allwinner SoCs in SPL" - depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I + depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_R40 help Enable support for SPI Flash. This option allows SPL to read from sunxi SPI Flash. It uses the same method as the boot ROM, so does diff --git a/arch/arm/mach-sunxi/spl_spi_sunxi.c b/arch/arm/mach-sunxi/spl_spi_sunxi.c index b19f1bf4af..c0b5a204fd 100644 --- a/arch/arm/mach-sunxi/spl_spi_sunxi.c +++ b/arch/arm/mach-sunxi/spl_spi_sunxi.c @@ -94,7 +94,8 @@ static void spi0_pinmux_setup(unsigned int pin_function) for (pin = SUNXI_GPC(0); pin <= SUNXI_GPC(2); pin++) sunxi_gpio_set_cfgpin(pin, pin_function);
- if (IS_ENABLED(CONFIG_MACH_SUN4I) || IS_ENABLED(CONFIG_MACH_SUN7I)) + if (IS_ENABLED(CONFIG_MACH_SUN4I) || IS_ENABLED(CONFIG_MACH_SUN7I) || + IS_ENABLED(CONFIG_MACH_SUN8I_R40)) sunxi_gpio_set_cfgpin(SUNXI_GPC(23), pin_function); else sunxi_gpio_set_cfgpin(SUNXI_GPC(3), pin_function); @@ -107,6 +108,9 @@ static bool is_new_gen_spi(void)
static uintptr_t spi0_base_address(void) { + if (IS_ENABLED(CONFIG_MACH_SUN8I_R40)) + return 0x01C05000; + if (!is_new_gen_spi()) return 0x01C05000;