From e50ee3a8d7328142eb24741305f751e5c0952380 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Sun, 13 Dec 2020 20:19:43 +0000 Subject: [PATCH] sunxi: SPL SPI: Add SPI boot support for the Allwinner H616 SoC The H616 SoC uses the same SPI IP as the H6, also shares the same clocks and reset bits. The only real difference is a slight change in the pin assignment: the H6 uses PC5, the H616 PC4 instead. This makes for a small change in our spi0_pinmux_setup() routine. Apart from that, just extend the H6 #ifdef guards to also cover the H616, using the shared CONFIG_SUN50I_GEN_H6 symbol. Also use this symbol for the Kconfig dependency. Signed-off-by: Andre Przywara Reviewed-by: Jagan Teki Tested-by: Ivan Shishkin --- arch/arm/mach-sunxi/Kconfig | 2 +- arch/arm/mach-sunxi/spl_spi_sunxi.c | 27 +++++++++++++++------------ 2 files changed, 16 insertions(+), 13 deletions(-) diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index 5712576..6b16f43 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -998,7 +998,7 @@ 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 || MACH_SUN8I_R40 || MACH_SUN50I_H6 || MACH_SUNIV + depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_R40 || SUN50I_GEN_H6 || MACH_SUNIV 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 925bf85..520f14e 100644 --- a/arch/arm/mach-sunxi/spl_spi_sunxi.c +++ b/arch/arm/mach-sunxi/spl_spi_sunxi.c @@ -78,7 +78,7 @@ #define CCM_AHB_GATING0 (0x01C20000 + 0x60) #define CCM_H6_SPI_BGR_REG (0x03001000 + 0x96c) -#ifdef CONFIG_MACH_SUN50I_H6 +#ifdef CONFIG_SUN50I_GEN_H6 #define CCM_SPI0_CLK (0x03001000 + 0x940) #else #define CCM_SPI0_CLK (0x01C20000 + 0xA0) @@ -97,7 +97,7 @@ /* * Allwinner A10/A20 SoCs were using pins PC0,PC1,PC2,PC23 for booting * from SPI Flash, everything else is using pins PC0,PC1,PC2,PC3. - * The H6 uses PC0, PC2, PC3, PC5. + * The H6 uses PC0, PC2, PC3, PC5, the H616 PC0, PC2, PC3, PC4. */ static void spi0_pinmux_setup(unsigned int pin_function) { @@ -105,11 +105,14 @@ static void spi0_pinmux_setup(unsigned int pin_function) sunxi_gpio_set_cfgpin(SUNXI_GPC(0), pin_function); sunxi_gpio_set_cfgpin(SUNXI_GPC(2), pin_function); - /* All chips except H6 use PC1, and only H6 uses PC5. */ - if (!IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + /* All chips except H6 and H616 use PC1. */ + if (!IS_ENABLED(CONFIG_SUN50I_GEN_H6)) sunxi_gpio_set_cfgpin(SUNXI_GPC(1), pin_function); - else + + if (IS_ENABLED(CONFIG_MACH_SUN50I_H6)) sunxi_gpio_set_cfgpin(SUNXI_GPC(5), pin_function); + if (IS_ENABLED(CONFIG_MACH_SUN50I_H616)) + sunxi_gpio_set_cfgpin(SUNXI_GPC(4), pin_function); /* Older generations use PC23 for CS, newer ones use PC3. */ if (IS_ENABLED(CONFIG_MACH_SUN4I) || IS_ENABLED(CONFIG_MACH_SUN7I) || @@ -122,7 +125,7 @@ static void spi0_pinmux_setup(unsigned int pin_function) static bool is_sun6i_gen_spi(void) { return IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I) || - IS_ENABLED(CONFIG_MACH_SUN50I_H6); + IS_ENABLED(CONFIG_SUN50I_GEN_H6); } static uintptr_t spi0_base_address(void) @@ -130,7 +133,7 @@ static uintptr_t spi0_base_address(void) if (IS_ENABLED(CONFIG_MACH_SUN8I_R40)) return 0x01C05000; - if (IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + if (IS_ENABLED(CONFIG_SUN50I_GEN_H6)) return 0x05010000; if (!is_sun6i_gen_spi() || @@ -148,14 +151,14 @@ static void spi0_enable_clock(void) uintptr_t base = spi0_base_address(); /* Deassert SPI0 reset on SUN6I */ - if (IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + if (IS_ENABLED(CONFIG_SUN50I_GEN_H6)) setbits_le32(CCM_H6_SPI_BGR_REG, (1U << 16) | 0x1); else if (is_sun6i_gen_spi()) setbits_le32(SUN6I_BUS_SOFT_RST_REG0, (1 << AHB_RESET_SPI0_SHIFT)); /* Open the SPI0 gate */ - if (!IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + if (!IS_ENABLED(CONFIG_SUN50I_GEN_H6)) setbits_le32(CCM_AHB_GATING0, (1 << AHB_GATE_OFFSET_SPI0)); if (IS_ENABLED(CONFIG_MACH_SUNIV)) { @@ -202,11 +205,11 @@ static void spi0_disable_clock(void) writel(0, CCM_SPI0_CLK); /* Close the SPI0 gate */ - if (!IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + if (!IS_ENABLED(CONFIG_SUN50I_GEN_H6)) clrbits_le32(CCM_AHB_GATING0, (1 << AHB_GATE_OFFSET_SPI0)); /* Assert SPI0 reset on SUN6I */ - if (IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + if (IS_ENABLED(CONFIG_SUN50I_GEN_H6)) clrbits_le32(CCM_H6_SPI_BGR_REG, (1U << 16) | 0x1); else if (is_sun6i_gen_spi()) clrbits_le32(SUN6I_BUS_SOFT_RST_REG0, @@ -218,7 +221,7 @@ static void spi0_init(void) unsigned int pin_function = SUNXI_GPC_SPI0; if (IS_ENABLED(CONFIG_MACH_SUN50I) || - IS_ENABLED(CONFIG_MACH_SUN50I_H6)) + IS_ENABLED(CONFIG_SUN50I_GEN_H6)) pin_function = SUN50I_GPC_SPI0; else if (IS_ENABLED(CONFIG_MACH_SUNIV)) pin_function = SUNIV_GPC_SPI0; -- 2.7.4