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drivers: pinctrl: Add sdif configs to ambiq pinctrl driver

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Added sdio cd and wp pin configs to ambiq pinctrl driver

Signed-off-by: Hao Luo <hluo@ambiq.com>
This commit is contained in:
Hao Luo 2025-04-17 11:16:17 +08:00 • committed by Benjamin Cabé
commit f28f4120ef
3 changed files with 22 additions and 0 deletions
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11
drivers/pinctrl/pinctrl_ambiq.c
View file

@ -45,6 +45,17 @@ static void pinctrl_configure_pin(const pinctrl_soc_pin_t *pin)
pin_config.GP.cfg_b.eDriveStrength = pin->drive_strength; pin_config.GP.cfg_b.eDriveStrength = pin->drive_strength;
#if defined(CONFIG_SOC_SERIES_APOLLO4X) #if defined(CONFIG_SOC_SERIES_APOLLO4X)
pin_config.GP.cfg_b.uSlewRate = pin->slew_rate; pin_config.GP.cfg_b.uSlewRate = pin->slew_rate;
switch (pin->sdif_cdwp) {
case 1:
am_hal_gpio_cd_pin_config(pin->pin_num);
break;
case 2:
am_hal_gpio_wp_pin_config(pin->pin_num);
break;
default:
/* not a sdif pin */
break;
}
#else #else
switch (pin->sdif_cdwp) { switch (pin->sdif_cdwp) {
case 1: case 1:

8
dts/bindings/pinctrl/ambiq,apollo4-pinctrl.yaml
View file

@ -161,3 +161,11 @@ child-binding:
Polarity select for NCE Polarity select for NCE
LOW = 0x0 - Polarity is active low LOW = 0x0 - Polarity is active low
HIGH = 0x1 - Polarity is active high HIGH = 0x1 - Polarity is active high
ambiq,sdif-cdwp:
type: int
default: 0
description: |
Configure SD Card Detection and Write Protection pin
0x0 - Not SDIF pin
0x1 - SDIFCD
0x2 - SDIFWP

3
soc/ambiq/apollo4x/pinctrl_soc.h
View file

@ -39,6 +39,8 @@ struct apollo4_pinctrl_soc_pin {
uint32_t nce : 6; uint32_t nce : 6;
/** nCE module polarity */ /** nCE module polarity */
uint32_t nce_pol: 1; uint32_t nce_pol: 1;
/** SDIF CD WP pad select */
uint32_t sdif_cdwp: 2;
}; };
typedef struct apollo4_pinctrl_soc_pin pinctrl_soc_pin_t; typedef struct apollo4_pinctrl_soc_pin pinctrl_soc_pin_t;
@ -65,6 +67,7 @@ typedef struct apollo4_pinctrl_soc_pin pinctrl_soc_pin_t;
DT_ENUM_IDX(node_id, ambiq_pull_up_ohms), \ DT_ENUM_IDX(node_id, ambiq_pull_up_ohms), \
DT_PROP(node_id, ambiq_nce_src), \ DT_PROP(node_id, ambiq_nce_src), \
DT_PROP(node_id, ambiq_nce_pol), \ DT_PROP(node_id, ambiq_nce_pol), \
DT_PROP(node_id, ambiq_sdif_cdwp), \
}, },
/** /**