diff options
Diffstat (limited to 'src/soc/amd/common/block')
-rw-r--r-- | src/soc/amd/common/block/gpio_banks/gpio.c | 76 | ||||
-rw-r--r-- | src/soc/amd/common/block/include/amdblocks/acpimmio.h | 22 | ||||
-rw-r--r-- | src/soc/amd/common/block/include/amdblocks/gpio_banks.h | 5 |
3 files changed, 50 insertions, 53 deletions
diff --git a/src/soc/amd/common/block/gpio_banks/gpio.c b/src/soc/amd/common/block/gpio_banks/gpio.c index d67e2d05f9..9125308307 100644 --- a/src/soc/amd/common/block/gpio_banks/gpio.c +++ b/src/soc/amd/common/block/gpio_banks/gpio.c @@ -82,79 +82,60 @@ static void get_sci_config_bits(uint32_t flag, uint32_t *edge, uint32_t *level) uintptr_t gpio_get_address(gpio_t gpio_num) { - uintptr_t gpio_address; + return (uintptr_t)gpio_ctrl_ptr(gpio_num); +} + +static void __gpio_update32(gpio_t gpio_num, uint32_t mask, uint32_t or) +{ + uint32_t reg; + + reg = gpio_read32(gpio_num); + reg &= mask; + reg |= or; + gpio_write32(gpio_num, reg); +} - if (gpio_num < 64) - gpio_address = GPIO_BANK0_CONTROL(gpio_num); - else if (gpio_num < 128) - gpio_address = GPIO_BANK1_CONTROL(gpio_num); - else - gpio_address = GPIO_BANK2_CONTROL(gpio_num); +static void __gpio_and32(gpio_t gpio_num, uint32_t mask) +{ + __gpio_update32(gpio_num, mask, 0); +} - return gpio_address; +static void __gpio_or32(gpio_t gpio_num, uint32_t or) +{ + __gpio_update32(gpio_num, -1UL, or); } int gpio_get(gpio_t gpio_num) { uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); + reg = gpio_read32(gpio_num); return !!(reg & GPIO_PIN_STS); } void gpio_set(gpio_t gpio_num, int value) { - uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); - reg &= ~GPIO_OUTPUT_MASK; - reg |= !!value << GPIO_OUTPUT_SHIFT; - write32((void *)gpio_address, reg); + __gpio_update32(gpio_num, ~GPIO_OUTPUT_MASK, !!value << GPIO_OUTPUT_SHIFT); } void gpio_input_pulldown(gpio_t gpio_num) { - uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); - reg &= ~GPIO_PULLUP_ENABLE; - reg |= GPIO_PULLDOWN_ENABLE; - write32((void *)gpio_address, reg); + __gpio_update32(gpio_num, ~GPIO_PULLUP_ENABLE, GPIO_PULLDOWN_ENABLE); } void gpio_input_pullup(gpio_t gpio_num) { - uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); - reg &= ~GPIO_PULLDOWN_ENABLE; - reg |= GPIO_PULLUP_ENABLE; - write32((void *)gpio_address, reg); + __gpio_update32(gpio_num, ~GPIO_PULLDOWN_ENABLE, GPIO_PULLUP_ENABLE); } void gpio_input(gpio_t gpio_num) { - uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); - reg &= ~GPIO_OUTPUT_ENABLE; - write32((void *)gpio_address, reg); + __gpio_and32(gpio_num, ~GPIO_OUTPUT_ENABLE); } void gpio_output(gpio_t gpio_num, int value) { - uint32_t reg; - uintptr_t gpio_address = gpio_get_address(gpio_num); - - reg = read32((void *)gpio_address); - reg |= GPIO_OUTPUT_ENABLE; - write32((void *)gpio_address, reg); + __gpio_or32(gpio_num, GPIO_OUTPUT_ENABLE); gpio_set(gpio_num, value); } @@ -210,7 +191,7 @@ void program_gpios(const struct soc_amd_gpio *gpio_list_ptr, size_t size) soc_gpio_hook(gpio, mux); - gpio_ptr = (uint32_t *)gpio_get_address(gpio); + gpio_ptr = gpio_ctrl_ptr(gpio); if (control_flags & GPIO_SPECIAL_FLAG) { gevent_num = get_gpio_gevent(gpio, gev_tbl, gev_items); @@ -276,13 +257,12 @@ void program_gpios(const struct soc_amd_gpio *gpio_list_ptr, size_t size) int gpio_interrupt_status(gpio_t gpio) { - uintptr_t gpio_address = gpio_get_address(gpio); - uint32_t reg = read32((void *)gpio_address); + uint32_t reg = gpio_read32(gpio); if (reg & GPIO_INT_STATUS) { /* Clear interrupt status, preserve wake status */ reg &= ~GPIO_WAKE_STATUS; - write32((void *)gpio_address, reg); + gpio_write32(gpio, reg); return 1; } diff --git a/src/soc/amd/common/block/include/amdblocks/acpimmio.h b/src/soc/amd/common/block/include/amdblocks/acpimmio.h index d3deff1153..2775b52116 100644 --- a/src/soc/amd/common/block/include/amdblocks/acpimmio.h +++ b/src/soc/amd/common/block/include/amdblocks/acpimmio.h @@ -353,6 +353,28 @@ static inline void gpio_100_write32(uint8_t reg, uint32_t value) } /* New GPIO banks configuration registers */ + +static inline void *gpio_ctrl_ptr(uint8_t gpio_num) +{ + return acpimmio_gpio0 + gpio_num * sizeof(uint32_t); +} + +static inline uint32_t gpio_read32(uint8_t gpio_num) +{ + return read32(gpio_ctrl_ptr(gpio_num)); +} + +static inline void gpio_write32(uint8_t gpio_num, uint32_t value) +{ + write32(gpio_ctrl_ptr(gpio_num), value); +} + +static inline void gpio_write32_rb(uint8_t gpio_num, uint32_t value) +{ + write32(gpio_ctrl_ptr(gpio_num), value); + read32(gpio_ctrl_ptr(gpio_num)); +} + /* GPIO bank 0 */ static inline uint8_t gpio0_read8(uint8_t reg) { diff --git a/src/soc/amd/common/block/include/amdblocks/gpio_banks.h b/src/soc/amd/common/block/include/amdblocks/gpio_banks.h index f4288aa072..da65e08d70 100644 --- a/src/soc/amd/common/block/include/amdblocks/gpio_banks.h +++ b/src/soc/amd/common/block/include/amdblocks/gpio_banks.h @@ -5,7 +5,6 @@ #include <stdint.h> #include <stddef.h> -#include <amdblocks/acpimmio.h> struct soc_amd_gpio { uint8_t gpio; @@ -19,10 +18,6 @@ struct soc_amd_event { uint8_t event; }; -#define GPIO_BANK0_CONTROL(gpio) ((uintptr_t)acpimmio_gpio0 + ((gpio) * 4)) -#define GPIO_BANK1_CONTROL(gpio) ((uintptr_t)acpimmio_gpio1 + (((gpio) - 64) * 4)) -#define GPIO_BANK2_CONTROL(gpio) ((uintptr_t)acpimmio_gpio2 + (((gpio) - 128) * 4)) - #define GPIO_MASTER_SWITCH 0xFC #define GPIO_MASK_STS_EN BIT(28) #define GPIO_INTERRUPT_EN BIT(30) |