Sunxi platforms have different possible mmc pin mux setups (except for mmc0), which are different across platforms.
This lets users configure which is used through the CONFIG_MMC*_PINS Kconfig options. This is especially relevant when a second (in addition to mmc0) port is used and CONFIG_MMC_SUNXI_SLOT_EXTRA is enabled.
Signed-off-by: Paul Kocialkowski contact@paulk.fr --- arch/arm/include/asm/arch-sunxi/gpio.h | 13 +++- board/sunxi/Kconfig | 19 +++++ board/sunxi/board.c | 131 +++++++++++++++++++++++++++++++-- drivers/gpio/sunxi_gpio.c | 14 ++++ 4 files changed, 171 insertions(+), 6 deletions(-)
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h index a6b15d6..f227044 100644 --- a/arch/arm/include/asm/arch-sunxi/gpio.h +++ b/arch/arm/include/asm/arch-sunxi/gpio.h @@ -145,26 +145,36 @@ enum sunxi_gpio_number { #define SUNXI_GPA_EMAC 2 #define SUN6I_GPA_GMAC 2 #define SUN7I_GPA_GMAC 5 +#define SUN6I_GPA_SDC2 5 +#define SUN6I_GPA_SDC3 4
#define SUNXI_GPB_TWI0 2 #define SUN4I_GPB_UART0 2 #define SUN5I_GPB_UART0 2
#define SUNXI_GPC_SDC2 3 +#define SUN6I_GPC_SDC3 4
+#define SUN8I_GPD_SDC1 3 #define SUNXI_GPD_LCD0 2 #define SUNXI_GPD_LVDS0 3
+#define SUN5I_GPE_SDC2 3 + #define SUNXI_GPF_SDC0 2 #define SUNXI_GPF_UART0 4 #define SUN8I_GPF_UART0 3
+#define SUN4I_GPG_SDC1 4 #define SUN5I_GPG_SDC1 2 +#define SUN6I_GPG_SDC1 2 +#define SUN8I_GPG_SDC1 2 #define SUN5I_GPG_UART1 4
+#define SUN4I_GPH_SDC1 5 #define SUN6I_GPH_UART0 2
-#define SUN4I_GPI_SDC3 2 +#define SUNXI_GPI_SDC3 2
#define SUN6I_GPL0_R_P2WI_SCK 3 #define SUN6I_GPL1_R_P2WI_SDA 3 @@ -189,6 +199,7 @@ int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset); int sunxi_gpio_get_cfgpin(u32 pin); int sunxi_gpio_set_drv(u32 pin, u32 val); int sunxi_gpio_set_pull(u32 pin, u32 val); +int sunxi_name_to_gpio_bank(const char *name); int sunxi_name_to_gpio(const char *name); #define name_to_gpio(name) sunxi_name_to_gpio(name)
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig index 5639321..57e7529 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -208,6 +208,25 @@ config MMC3_CD_PIN ---help--- See MMC0_CD_PIN help text.
+config MMC1_PINS + string "Pins for mmc1" + default "" + ---help--- + Set the pins used for mmc1, when applicable. This takes a string in the + format understood by sunxi_name_to_gpio_bank, e.g. PH for port H. + +config MMC2_PINS + string "Pins for mmc2" + default "" + ---help--- + See MMC1_PINS help text. + +config MMC3_PINS + string "Pins for mmc3" + default "" + ---help--- + See MMC1_PINS help text. + config MMC_SUNXI_SLOT_EXTRA int "mmc extra slot number" default -1 diff --git a/board/sunxi/board.c b/board/sunxi/board.c index 3af3973..01b654e 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -71,10 +71,11 @@ int dram_init(void) static void mmc_pinmux_setup(int sdc) { unsigned int pin; + int pins;
switch (sdc) { case 0: - /* D1-PF0, D0-PF1, CLK-PF2, CMD-PF3, D3-PF4, D4-PF5 */ + /* SDC0: PF0-PF5 */ for (pin = SUNXI_GPF(0); pin <= SUNXI_GPF(5); pin++) { sunxi_gpio_set_cfgpin(pin, SUNXI_GPF_SDC0); sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); @@ -83,30 +84,150 @@ static void mmc_pinmux_setup(int sdc) break;
case 1: - /* CMD-PG3, CLK-PG4, D0~D3-PG5-8 */ + pins = sunxi_name_to_gpio_bank(CONFIG_MMC1_PINS); + +#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) + if (pins == SUNXI_GPIO_H) { + /* SDC1: PH22-PH-27 */ + for (pin = SUNXI_GPH(22); pin <= SUNXI_GPH(27); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN4I_GPH_SDC1); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } else { + /* SDC1: PG0-PG5 */ + for (pin = SUNXI_GPG(0); pin <= SUNXI_GPG(5); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN4I_GPG_SDC1); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } +#elif defined(CONFIG_MACH_SUN5I) + /* SDC1: PG3-PG8 */ for (pin = SUNXI_GPG(3); pin <= SUNXI_GPG(8); pin++) { sunxi_gpio_set_cfgpin(pin, SUN5I_GPG_SDC1); sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); sunxi_gpio_set_drv(pin, 2); } +#elif defined(CONFIG_MACH_SUN6I) + /* SDC1: PG0-PG5 */ + for (pin = SUNXI_GPG(0); pin <= SUNXI_GPG(5); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN6I_GPG_SDC1); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } +#elif defined(CONFIG_MACH_SUN8I) + if (pins == SUNXI_GPIO_D) { + /* SDC1: PD2-PD7 */ + for (pin = SUNXI_GPD(2); pin <= SUNXI_GPD(7); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN8I_GPD_SDC1); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } else { + /* SDC1: PG0-PG5 */ + for (pin = SUNXI_GPG(0); pin <= SUNXI_GPG(5); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN8I_GPG_SDC1); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } +#endif break;
case 2: - /* CMD-PC6, CLK-PC7, D0-PC8, D1-PC9, D2-PC10, D3-PC11 */ + pins = sunxi_name_to_gpio_bank(CONFIG_MMC2_PINS); + +#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) + /* SDC2: PC6-PC11 */ for (pin = SUNXI_GPC(6); pin <= SUNXI_GPC(11); pin++) { sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_SDC2); sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); sunxi_gpio_set_drv(pin, 2); } +#elif defined(CONFIG_MACH_SUN5I) + if (pins == SUNXI_GPIO_E) { + /* SDC2: PE4-PE9 */ + for (pin = SUNXI_GPE(4); pin <= SUNXI_GPD(9); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN5I_GPE_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } else { + /* SDC2: PC6-PC15 */ + for (pin = SUNXI_GPC(6); pin <= SUNXI_GPC(15); pin++) { + sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } +#elif defined(CONFIG_MACH_SUN6I) + if (pins == SUNXI_GPIO_A) { + /* SDC2: PA9-PA14 */ + for (pin = SUNXI_GPA(9); pin <= SUNXI_GPA(14); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN6I_GPA_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } else { + /* SDC2: PC6-PC15, PC24 */ + for (pin = SUNXI_GPC(6); pin <= SUNXI_GPC(15); pin++) { + sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + + sunxi_gpio_set_cfgpin(SUNXI_GPC(24), SUNXI_GPC_SDC2); + sunxi_gpio_set_pull(SUNXI_GPC(24), SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(SUNXI_GPC(24), 2); + } +#elif defined(CONFIG_MACH_SUN8I) + /* SDC2: PC5-PC6, PC8-PC16 */ + for (pin = SUNXI_GPC(5); pin <= SUNXI_GPC(6); pin++) { + sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + + for (pin = SUNXI_GPC(8); pin <= SUNXI_GPC(16); pin++) { + sunxi_gpio_set_cfgpin(pin, SUNXI_GPC_SDC2); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } +#endif break;
case 3: - /* CMD-PI4, CLK-PI5, D0~D3-PI6~9 : 2 */ + pins = sunxi_name_to_gpio_bank(CONFIG_MMC3_PINS); + +#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN7I) + /* SDC3: PI4-PI9 */ for (pin = SUNXI_GPI(4); pin <= SUNXI_GPI(9); pin++) { - sunxi_gpio_set_cfgpin(pin, SUN4I_GPI_SDC3); + sunxi_gpio_set_cfgpin(pin, SUNXI_GPI_SDC3); sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); sunxi_gpio_set_drv(pin, 2); } +#elif defined(CONFIG_MACH_SUN6I) + if (pins == SUNXI_GPIO_A) { + /* SDC3: PA9-PA14 */ + for (pin = SUNXI_GPA(9); pin <= SUNXI_GPA(14); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN6I_GPA_SDC3); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + } else { + /* SDC3: PC6-PC15, PC24 */ + for (pin = SUNXI_GPC(6); pin <= SUNXI_GPC(15); pin++) { + sunxi_gpio_set_cfgpin(pin, SUN6I_GPC_SDC3); + sunxi_gpio_set_pull(pin, SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(pin, 2); + } + + sunxi_gpio_set_cfgpin(SUNXI_GPC(24), SUN6I_GPC_SDC3); + sunxi_gpio_set_pull(SUNXI_GPC(24), SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_drv(SUNXI_GPC(24), 2); + } +#endif break;
default: diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c index c66aa51..532d489 100644 --- a/drivers/gpio/sunxi_gpio.c +++ b/drivers/gpio/sunxi_gpio.c @@ -115,6 +115,20 @@ int gpio_set_value(unsigned gpio, int value) return sunxi_gpio_output(gpio, value); }
+int sunxi_name_to_gpio_bank(const char *name) +{ + int group = 0; + + if (*name == 'P' || *name == 'p') + name++; + if (*name >= 'A') { + group = *name - (*name > 'a' ? 'a' : 'A'); + return group; + } + + return -1; +} + int sunxi_name_to_gpio(const char *name) { int group = 0;