X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fgpio%2Fsunxi_gpio.c;h=9c3a4428e11fb68c6a9520eb8ded5d8dea4a81f3;hb=1099b2abef35c3c887f6afac1a8ef18c7924d5d2;hp=44135e5bb746b38b987128605d3619050eef9f41;hpb=11ada9225a16ed2d8ddbf0715a2416245a777cbc;p=oweals%2Fu-boot.git diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c index 44135e5bb7..9c3a4428e1 100644 --- a/drivers/gpio/sunxi_gpio.c +++ b/drivers/gpio/sunxi_gpio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2012 Henrik Nordstrom * @@ -6,8 +7,6 @@ * (C) Copyright 2007-2011 * Allwinner Technology Co., Ltd. * Tom Cubie - * - * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -15,11 +14,11 @@ #include #include #include +#include #include #include #include - -DECLARE_GLOBAL_DATA_PTR; +#include #define SUNXI_GPIOS_PER_BANK SUNXI_GPIO_A_NR @@ -29,7 +28,7 @@ struct sunxi_gpio_platdata { int gpio_count; }; -#ifndef CONFIG_DM_GPIO +#if !CONFIG_IS_ENABLED(DM_GPIO) static int sunxi_gpio_output(u32 pin, u32 val) { u32 dat; @@ -75,7 +74,7 @@ int gpio_direction_input(unsigned gpio) { sunxi_gpio_set_cfgpin(gpio, SUNXI_GPIO_INPUT); - return sunxi_gpio_input(gpio); + return 0; } int gpio_direction_output(unsigned gpio, int value) @@ -101,6 +100,7 @@ int sunxi_name_to_gpio(const char *name) int groupsize = 9 * 32; long pin; char *eptr; + if (*name == 'P' || *name == 'p') name++; if (*name >= 'A') { @@ -116,9 +116,46 @@ int sunxi_name_to_gpio(const char *name) return -1; return group * 32 + pin; } +#endif /* DM_GPIO */ + +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; +} + +#if CONFIG_IS_ENABLED(DM_GPIO) +/* TODO(sjg@chromium.org): Remove this function and use device tree */ +int sunxi_name_to_gpio(const char *name) +{ + unsigned int gpio; + int ret; +#if !defined CONFIG_SPL_BUILD && defined CONFIG_AXP_GPIO + char lookup[8]; + + if (strcasecmp(name, "AXP0-VBUS-DETECT") == 0) { + sprintf(lookup, SUNXI_GPIO_AXP0_PREFIX "%d", + SUNXI_GPIO_AXP0_VBUS_DETECT); + name = lookup; + } else if (strcasecmp(name, "AXP0-VBUS-ENABLE") == 0) { + sprintf(lookup, SUNXI_GPIO_AXP0_PREFIX "%d", + SUNXI_GPIO_AXP0_VBUS_ENABLE); + name = lookup; + } #endif + ret = gpio_lookup_name(name, NULL, NULL, &gpio); + + return ret ? ret : gpio; +} -#ifdef CONFIG_DM_GPIO static int sunxi_gpio_direction_input(struct udevice *dev, unsigned offset) { struct sunxi_gpio_platdata *plat = dev_get_platdata(dev); @@ -176,12 +213,27 @@ static int sunxi_gpio_get_function(struct udevice *dev, unsigned offset) return GPIOF_FUNC; } +static int sunxi_gpio_xlate(struct udevice *dev, struct gpio_desc *desc, + struct ofnode_phandle_args *args) +{ + int ret; + + ret = device_get_child(dev, args->args[0], &desc->dev); + if (ret) + return ret; + desc->offset = args->args[1]; + desc->flags = args->args[2] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0; + + return 0; +} + static const struct dm_gpio_ops gpio_sunxi_ops = { .direction_input = sunxi_gpio_direction_input, .direction_output = sunxi_gpio_direction_output, .get_value = sunxi_gpio_get_value, .set_value = sunxi_gpio_set_value, .get_function = sunxi_gpio_get_function, + .xlate = sunxi_gpio_xlate, }; /** @@ -196,10 +248,11 @@ static char *gpio_bank_name(int bank) { char *name; - name = malloc(2); + name = malloc(3); if (name) { - name[0] = 'A' + bank; - name[1] = '\0'; + name[0] = 'P'; + name[1] = 'A' + bank; + name[2] = '\0'; } return name; @@ -208,7 +261,7 @@ static char *gpio_bank_name(int bank) static int gpio_sunxi_probe(struct udevice *dev) { struct sunxi_gpio_platdata *plat = dev_get_platdata(dev); - struct gpio_dev_priv *uc_priv = dev->uclass_priv; + struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev); /* Tell the uclass how many GPIOs we have */ if (plat) { @@ -218,24 +271,30 @@ static int gpio_sunxi_probe(struct udevice *dev) return 0; } + +struct sunxi_gpio_soc_data { + int start; + int no_banks; +}; + /** * We have a top-level GPIO device with no actual GPIOs. It has a child * device for each Sunxi bank. */ static int gpio_sunxi_bind(struct udevice *parent) { + struct sunxi_gpio_soc_data *soc_data = + (struct sunxi_gpio_soc_data *)dev_get_driver_data(parent); struct sunxi_gpio_platdata *plat = parent->platdata; struct sunxi_gpio_reg *ctlr; - int bank; - int ret; + int bank, ret; /* If this is a child device, there is nothing to do here */ if (plat) return 0; - ctlr = (struct sunxi_gpio_reg *)fdtdec_get_addr(gd->fdt_blob, - parent->of_offset, "reg"); - for (bank = 0; bank < SUNXI_GPIO_BANKS; bank++) { + ctlr = (struct sunxi_gpio_reg *)devfdt_get_addr(parent); + for (bank = 0; bank < soc_data->no_banks; bank++) { struct sunxi_gpio_platdata *plat; struct udevice *dev; @@ -243,21 +302,66 @@ static int gpio_sunxi_bind(struct udevice *parent) if (!plat) return -ENOMEM; plat->regs = &ctlr->gpio_bank[bank]; - plat->bank_name = gpio_bank_name(bank); + plat->bank_name = gpio_bank_name(soc_data->start + bank); plat->gpio_count = SUNXI_GPIOS_PER_BANK; ret = device_bind(parent, parent->driver, plat->bank_name, plat, -1, &dev); if (ret) return ret; - dev->of_offset = parent->of_offset; + dev_set_of_offset(dev, dev_of_offset(parent)); } return 0; } +static const struct sunxi_gpio_soc_data soc_data_a_all = { + .start = 0, + .no_banks = SUNXI_GPIO_BANKS, +}; + +static const struct sunxi_gpio_soc_data soc_data_l_1 = { + .start = 'L' - 'A', + .no_banks = 1, +}; + +static const struct sunxi_gpio_soc_data soc_data_l_2 = { + .start = 'L' - 'A', + .no_banks = 2, +}; + +static const struct sunxi_gpio_soc_data soc_data_l_3 = { + .start = 'L' - 'A', + .no_banks = 3, +}; + +#define ID(_compat_, _soc_data_) \ + { .compatible = _compat_, .data = (ulong)&soc_data_##_soc_data_ } + static const struct udevice_id sunxi_gpio_ids[] = { - { .compatible = "allwinner,sun7i-a20-pinctrl" }, + ID("allwinner,sun4i-a10-pinctrl", a_all), + ID("allwinner,sun5i-a10s-pinctrl", a_all), + ID("allwinner,sun5i-a13-pinctrl", a_all), + ID("allwinner,sun50i-h5-pinctrl", a_all), + ID("allwinner,sun6i-a31-pinctrl", a_all), + ID("allwinner,sun6i-a31s-pinctrl", a_all), + ID("allwinner,sun7i-a20-pinctrl", a_all), + ID("allwinner,sun8i-a23-pinctrl", a_all), + ID("allwinner,sun8i-a33-pinctrl", a_all), + ID("allwinner,sun8i-a83t-pinctrl", a_all), + ID("allwinner,sun8i-h3-pinctrl", a_all), + ID("allwinner,sun8i-r40-pinctrl", a_all), + ID("allwinner,sun8i-v3s-pinctrl", a_all), + ID("allwinner,sun9i-a80-pinctrl", a_all), + ID("allwinner,sun50i-a64-pinctrl", a_all), + ID("allwinner,sun50i-h6-pinctrl", a_all), + ID("allwinner,sun6i-a31-r-pinctrl", l_2), + ID("allwinner,sun8i-a23-r-pinctrl", l_1), + ID("allwinner,sun8i-a83t-r-pinctrl", l_1), + ID("allwinner,sun8i-h3-r-pinctrl", l_1), + ID("allwinner,sun9i-a80-r-pinctrl", l_3), + ID("allwinner,sun50i-a64-r-pinctrl", l_1), + ID("allwinner,sun50i-h6-r-pinctrl", l_2), { } }; @@ -269,4 +373,4 @@ U_BOOT_DRIVER(gpio_sunxi) = { .bind = gpio_sunxi_bind, .probe = gpio_sunxi_probe, }; -#endif +#endif /* DM_GPIO */