In order to make these PIO4 definitions shared with AT91 PIO4 pinctrl driver, move them from the existing gpio driver to the head file, and rephrase them.
Signed-off-by: Wenyou Yang wenyou.yang@atmel.com ---
Changes in v3: None Changes in v2: None
arch/arm/mach-at91/include/mach/atmel_pio4.h | 35 ++++++++++++++ drivers/gpio/atmel_pio4.c | 71 +++++++--------------------- 2 files changed, 53 insertions(+), 53 deletions(-)
diff --git a/arch/arm/mach-at91/include/mach/atmel_pio4.h b/arch/arm/mach-at91/include/mach/atmel_pio4.h index 8bb4b12..6760bec 100644 --- a/arch/arm/mach-at91/include/mach/atmel_pio4.h +++ b/arch/arm/mach-at91/include/mach/atmel_pio4.h @@ -29,6 +29,41 @@ struct atmel_pio4_port {
#endif
+/* + * PIO Configuration Register Fields + */ +#define ATMEL_PIO_CFGR_FUNC_MASK GENMASK(2, 0) +#define ATMEL_PIO_CFGR_FUNC_GPIO (0x0 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_A (0x1 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_B (0x2 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_C (0x3 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_D (0x4 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_E (0x5 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_F (0x6 << 0) +#define ATMEL_PIO_CFGR_FUNC_PERIPH_G (0x7 << 0) +#define ATMEL_PIO_DIR_MASK BIT(8) +#define ATMEL_PIO_PUEN_MASK BIT(9) +#define ATMEL_PIO_PDEN_MASK BIT(10) +#define ATMEL_PIO_IFEN_MASK BIT(12) +#define ATMEL_PIO_IFSCEN_MASK BIT(13) +#define ATMEL_PIO_OPD_MASK BIT(14) +#define ATMEL_PIO_SCHMITT_MASK BIT(15) +#define ATMEL_PIO_CFGR_EVTSEL_MASK GENMASK(26, 24) +#define ATMEL_PIO_CFGR_EVTSEL_FALLING (0 << 24) +#define ATMEL_PIO_CFGR_EVTSEL_RISING (1 << 24) +#define ATMEL_PIO_CFGR_EVTSEL_BOTH (2 << 24) +#define ATMEL_PIO_CFGR_EVTSEL_LOW (3 << 24) +#define ATMEL_PIO_CFGR_EVTSEL_HIGH (4 << 24) + +#define ATMEL_PIO_NPINS_PER_BANK 32 +#define ATMEL_PIO_BANK(pin_id) (pin_id / ATMEL_PIO_NPINS_PER_BANK) +#define ATMEL_PIO_LINE(pin_id) (pin_id % ATMEL_PIO_NPINS_PER_BANK) +#define ATMEL_PIO_BANK_OFFSET 0x40 + +#define ATMEL_GET_PIN_NO(pinfunc) ((pinfunc) & 0xff) +#define ATMEL_GET_PIN_FUNC(pinfunc) ((pinfunc >> 16) & 0xf) +#define ATMEL_GET_PIN_IOSET(pinfunc) ((pinfunc >> 20) & 0xf) + #define AT91_PIO_PORTA 0x0 #define AT91_PIO_PORTB 0x1 #define AT91_PIO_PORTC 0x2 diff --git a/drivers/gpio/atmel_pio4.c b/drivers/gpio/atmel_pio4.c index d71f525..84e8cc5 100644 --- a/drivers/gpio/atmel_pio4.c +++ b/drivers/gpio/atmel_pio4.c @@ -12,41 +12,6 @@ #include <mach/gpio.h> #include <mach/atmel_pio4.h>
-#define ATMEL_PIO4_PINS_PER_BANK 32 - -/* - * Register Field Definitions - */ -#define ATMEL_PIO4_CFGR_FUNC (0x7 << 0) -#define ATMEL_PIO4_CFGR_FUNC_GPIO (0x0 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_A (0x1 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_B (0x2 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_C (0x3 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_D (0x4 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_E (0x5 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_F (0x6 << 0) -#define ATMEL_PIO4_CFGR_FUNC_PERIPH_G (0x7 << 0) -#define ATMEL_PIO4_CFGR_DIR (0x1 << 8) -#define ATMEL_PIO4_CFGR_PUEN (0x1 << 9) -#define ATMEL_PIO4_CFGR_PDEN (0x1 << 10) -#define ATMEL_PIO4_CFGR_IFEN (0x1 << 12) -#define ATMEL_PIO4_CFGR_IFSCEN (0x1 << 13) -#define ATMEL_PIO4_CFGR_OPD (0x1 << 14) -#define ATMEL_PIO4_CFGR_SCHMITT (0x1 << 15) -#define ATMEL_PIO4_CFGR_DRVSTR (0x3 << 16) -#define ATMEL_PIO4_CFGR_DRVSTR_LOW0 (0x0 << 16) -#define ATMEL_PIO4_CFGR_DRVSTR_LOW1 (0x1 << 16) -#define ATMEL_PIO4_CFGR_DRVSTR_MEDIUM (0x2 << 16) -#define ATMEL_PIO4_CFGR_DRVSTR_HIGH (0x3 << 16) -#define ATMEL_PIO4_CFGR_EVTSEL (0x7 << 24) -#define ATMEL_PIO4_CFGR_EVTSEL_FALLING (0x0 << 24) -#define ATMEL_PIO4_CFGR_EVTSEL_RISING (0x1 << 24) -#define ATMEL_PIO4_CFGR_EVTSEL_BOTH (0x2 << 24) -#define ATMEL_PIO4_CFGR_EVTSEL_LOW (0x3 << 24) -#define ATMEL_PIO4_CFGR_EVTSEL_HIGH (0x4 << 24) -#define ATMEL_PIO4_CFGR_PCFS (0x1 << 29) -#define ATMEL_PIO4_CFGR_ICFS (0x1 << 30) - static struct atmel_pio4_port *atmel_pio4_port_base(u32 port) { struct atmel_pio4_port *base = NULL; @@ -79,7 +44,7 @@ static int atmel_pio4_config_io_func(u32 port, u32 pin, struct atmel_pio4_port *port_base; u32 reg, mask;
- if (pin >= ATMEL_PIO4_PINS_PER_BANK) + if (pin >= ATMEL_PIO_NPINS_PER_BANK) return -ENODEV;
port_base = atmel_pio4_port_base(port); @@ -88,7 +53,7 @@ static int atmel_pio4_config_io_func(u32 port, u32 pin,
mask = 1 << pin; reg = func; - reg |= use_pullup ? ATMEL_PIO4_CFGR_PUEN : 0; + reg |= use_pullup ? ATMEL_PIO_PUEN_MASK : 0;
writel(mask, &port_base->mskr); writel(reg, &port_base->cfgr); @@ -99,56 +64,56 @@ static int atmel_pio4_config_io_func(u32 port, u32 pin, int atmel_pio4_set_gpio(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_GPIO, + ATMEL_PIO_CFGR_FUNC_GPIO, use_pullup); }
int atmel_pio4_set_a_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_A, + ATMEL_PIO_CFGR_FUNC_PERIPH_A, use_pullup); }
int atmel_pio4_set_b_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_B, + ATMEL_PIO_CFGR_FUNC_PERIPH_B, use_pullup); }
int atmel_pio4_set_c_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_C, + ATMEL_PIO_CFGR_FUNC_PERIPH_C, use_pullup); }
int atmel_pio4_set_d_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_D, + ATMEL_PIO_CFGR_FUNC_PERIPH_D, use_pullup); }
int atmel_pio4_set_e_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_E, + ATMEL_PIO_CFGR_FUNC_PERIPH_E, use_pullup); }
int atmel_pio4_set_f_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_F, + ATMEL_PIO_CFGR_FUNC_PERIPH_F, use_pullup); }
int atmel_pio4_set_g_periph(u32 port, u32 pin, u32 use_pullup) { return atmel_pio4_config_io_func(port, pin, - ATMEL_PIO4_CFGR_FUNC_PERIPH_G, + ATMEL_PIO_CFGR_FUNC_PERIPH_G, use_pullup); }
@@ -157,7 +122,7 @@ int atmel_pio4_set_pio_output(u32 port, u32 pin, u32 value) struct atmel_pio4_port *port_base; u32 reg, mask;
- if (pin >= ATMEL_PIO4_PINS_PER_BANK) + if (pin >= ATMEL_PIO_NPINS_PER_BANK) return -ENODEV;
port_base = atmel_pio4_port_base(port); @@ -165,7 +130,7 @@ int atmel_pio4_set_pio_output(u32 port, u32 pin, u32 value) return -ENODEV;
mask = 0x01 << pin; - reg = ATMEL_PIO4_CFGR_FUNC_GPIO | ATMEL_PIO4_CFGR_DIR; + reg = ATMEL_PIO_CFGR_FUNC_GPIO | ATMEL_PIO_DIR_MASK;
writel(mask, &port_base->mskr); writel(reg, &port_base->cfgr); @@ -183,7 +148,7 @@ int atmel_pio4_get_pio_input(u32 port, u32 pin) struct atmel_pio4_port *port_base; u32 reg, mask;
- if (pin >= ATMEL_PIO4_PINS_PER_BANK) + if (pin >= ATMEL_PIO_NPINS_PER_BANK) return -ENODEV;
port_base = atmel_pio4_port_base(port); @@ -191,7 +156,7 @@ int atmel_pio4_get_pio_input(u32 port, u32 pin) return -ENODEV;
mask = 0x01 << pin; - reg = ATMEL_PIO4_CFGR_FUNC_GPIO; + reg = ATMEL_PIO_CFGR_FUNC_GPIO;
writel(mask, &port_base->mskr); writel(reg, &port_base->cfgr); @@ -205,7 +170,7 @@ static int atmel_pio4_direction_input(struct udevice *dev, unsigned offset) struct at91_port_platdata *plat = dev_get_platdata(dev); struct atmel_pio4_port *port_base = (atmel_pio4_port *)plat->base_addr; u32 mask = 0x01 << offset; - u32 reg = ATMEL_PIO4_CFGR_FUNC_GPIO; + u32 reg = ATMEL_PIO_CFGR_FUNC_GPIO;
writel(mask, &port_base->mskr); writel(reg, &port_base->cfgr); @@ -219,7 +184,7 @@ static int atmel_pio4_direction_output(struct udevice *dev, struct at91_port_platdata *plat = dev_get_platdata(dev); struct atmel_pio4_port *port_base = (atmel_pio4_port *)plat->base_addr; u32 mask = 0x01 << offset; - u32 reg = ATMEL_PIO4_CFGR_FUNC_GPIO | ATMEL_PIO4_CFGR_DIR; + u32 reg = ATMEL_PIO_CFGR_FUNC_GPIO | ATMEL_PIO_DIR_MASK;
writel(mask, &port_base->mskr); writel(reg, &port_base->cfgr); @@ -265,7 +230,7 @@ static int atmel_pio4_get_function(struct udevice *dev, unsigned offset) writel(mask, &port_base->mskr);
return (readl(&port_base->cfgr) & - ATMEL_PIO4_CFGR_DIR) ? GPIOF_OUTPUT : GPIOF_INPUT; + ATMEL_PIO_DIR_MASK) ? GPIOF_OUTPUT : GPIOF_INPUT; }
static const struct dm_gpio_ops atmel_pio4_ops = { @@ -282,7 +247,7 @@ static int atmel_pio4_probe(struct udevice *dev) struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
uc_priv->bank_name = plat->bank_name; - uc_priv->gpio_count = ATMEL_PIO4_PINS_PER_BANK; + uc_priv->gpio_count = ATMEL_PIO_NPINS_PER_BANK;
return 0; }