diff options
Diffstat (limited to 'src/soc/amd/common/block/include/amdblocks/gpio_banks.h')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/gpio_banks.h | 56 |
1 files changed, 30 insertions, 26 deletions
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 546d55aa53..f02c8e86b4 100644 --- a/src/soc/amd/common/block/include/amdblocks/gpio_banks.h +++ b/src/soc/amd/common/block/include/amdblocks/gpio_banks.h @@ -74,6 +74,7 @@ struct soc_amd_event { #define GPIO_INT_STATUS (1 << 28) #define GPIO_WAKE_STATUS (1 << 29) +#define GPIO_STATUS_MASK (3 << 28) enum { GEVENT_0, @@ -118,7 +119,6 @@ enum { #define GPIO_PULL_PULL_DOWN GPIO_PULLDOWN_ENABLE #define GPIO_PULL_PULL_NONE 0 -#define AMD_GPIO_CONTROL_MASK 0x00f4ff00 #define AMD_GPIO_MUX_MASK 0x03 @@ -134,10 +134,6 @@ enum { #define GPIO_FLAG_EVENT_ACTIVE_MASK (1 << 1) #define GPIO_FLAG_SCI (1 << 2) #define GPIO_FLAG_SMI (1 << 3) -#define GPIO_FLAG_DEBOUNCE (1 << 4) -#define GPIO_FLAG_WAKE (1 << 5) -#define GPIO_FLAG_INT (1 << 6) -#define GPIO_FLAG_SPECIAL_MASK (0x1f << 2) /* Trigger configuration for GPIO SCI/SMI events. */ #define GPIO_FLAG_EVENT_TRIGGER_LEVEL_HIGH (GPIO_FLAG_EVENT_TRIGGER_LEVEL | \ @@ -169,11 +165,6 @@ static inline bool is_gpio_event_active_low(uint32_t flags) return (flags & GPIO_FLAG_EVENT_ACTIVE_MASK) == GPIO_FLAG_EVENT_ACTIVE_LOW; } -#define GPIO_DEBOUNCE_MASK 0x000000ff -#define INT_TRIGGER_MASK 0x00000700 -#define INT_WAKE_MASK 0x0000e700 -#define INT_SCI_SMI_MASK 0x00f40000 - #define DEB_GLITCH_SHIFT 5 #define DEB_GLITCH_LOW 1 #define DEB_GLITCH_HIGH 2 @@ -200,18 +191,29 @@ static inline bool is_gpio_event_active_low(uint32_t flags) #define GPIO_DEB_200mS (13 | GPIO_TIMEBASE_15560uS) #define GPIO_DEB_500mS (8 | GPIO_TIMEBASE_62440uS) +#define GPIO_DEB_MASK 0xff + #define GPIO_WAKE_S0i3 (1 << 13) #define GPIO_WAKE_S3 (1 << 14) #define GPIO_WAKE_S4_S5 (1 << 15) #define GPIO_WAKE_S0i3_S4_S5 (GPIO_WAKE_S0i3 | GPIO_WAKE_S4_S5) #define GPIO_WAKE_S3_S4_S5 (GPIO_WAKE_S3 | GPIO_WAKE_S4_S5) +#define GPIO_WAKE_MASK (7 << 13) + +/* + * Mask used to reset bits in GPIO control register when configuring pad using `program_gpios()` + * Bits that are preserved/untouched: + * - Reserved bits + * - Drive strength bits + * - Read only bits + */ +#define PAD_CFG_MASK (GPIO_DEB_MASK | GPIO_TRIGGER_MASK | GPIO_ACTIVE_MASK | \ + GPIO_INT_ENABLE_MASK | GPIO_WAKE_MASK | GPIO_PULL_MASK | \ + GPIO_OUTPUT_MASK | GPIO_STATUS_MASK) /* - * Several macros are available to declare programming of GPIO pins, and if - * needed, more than 1 macro can be used for any pin. However, some macros - * will have no effect if combined. For example debounce only affects input - * or one of the interrupts. Some macros should not be combined, such as SMI - * and regular interrupt. The defined macros and their parameters are: + * Several macros are available to declare programming of GPIO pins. The defined macros and + * their parameters are: * PAD_NF Define native alternate function for the pin. * pin the pin to be programmed * function the native function @@ -230,19 +232,19 @@ static inline bool is_gpio_event_active_low(uint32_t flags) * PAD_SCI The pin is a SCI source * pin the pin to be programmed * pull pull up, pull down or no pull - * trigger LEVEL_LOW, LEVEL_HIGH, EDGE_LOW, EDGE_HIGH + * event trigger LEVEL_LOW, LEVEL_HIGH, EDGE_LOW, EDGE_HIGH * PAD_SMI The pin is a SMI source * pin the pin to be programmed * pull pull up, pull down or no pull - * trigger LEVEL_LOW, LEVEL_HIGH + * event trigger LEVEL_LOW, LEVEL_HIGH * PAD_WAKE The pin can wake, use after PAD_INT or PAD_SCI * pin the pin to be programmed * pull pull up, pull down or no pull * trigger LEVEL_LOW, LEVEL_HIGH, EDGE_LOW, EDGE_HIGH, BOTH_EDGES * type S0i3, S3, S4_S5 or S4_S5 combinations (S0i3_S3 invalid) - * PAD_DEBOUNCE The input or interrupt will be debounced, invalid after - * PAD_NF + * PAD_DEBOUNCE The input or interrupt will be debounced * pin the pin to be programmed + * pull pull up, pull down or no pull * debounce_type preserve low glitch, preserve high glitch, no glitch * debounce_time the debounce time */ @@ -279,29 +281,31 @@ static inline bool is_gpio_event_active_low(uint32_t flags) #define PAD_INT(pin, pull, trigger, action) \ PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, \ PAD_PULL(pull) | PAD_TRIGGER(trigger) | PAD_INT_ENABLE(action), \ - GPIO_FLAG_INT) + 0) /* SCI pad configuration */ #define PAD_SCI(pin, pull, trigger) \ - PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, PAD_PULL(pull), \ + PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, \ + PAD_PULL(pull) | PAD_TRIGGER(LEVEL_HIGH), \ PAD_FLAG_EVENT_TRIGGER(trigger) | GPIO_FLAG_SCI) /* SMI pad configuration */ #define PAD_SMI(pin, pull, trigger) \ - PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, PAD_PULL(pull), \ + PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, \ + PAD_PULL(pull) | PAD_TRIGGER(LEVEL_HIGH), \ PAD_FLAG_EVENT_TRIGGER(trigger) | GPIO_FLAG_SMI) /* WAKE pad configuration */ #define PAD_WAKE(pin, pull, trigger, type) \ PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, \ PAD_PULL(pull) | PAD_TRIGGER(trigger) | PAD_WAKE_ENABLE(type), \ - GPIO_FLAG_WAKE) + 0) /* pin debounce configuration */ -#define PAD_DEBOUNCE(pin, type, time) \ +#define PAD_DEBOUNCE(pin, pull, type, time) \ PAD_CFG_STRUCT(pin, pin ## _IOMUX_GPIOxx, \ - PAD_DEBOUNCE_CONFIG(type) | PAD_DEBOUNCE_CONFIG(time), \ - GPIO_FLAG_DEBOUNCE) + PAD_PULL(pull) | PAD_DEBOUNCE_CONFIG(type) | PAD_DEBOUNCE_CONFIG(time), \ + 0) typedef uint32_t gpio_t; |