--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm APQ8016 pinctrl
+ *
+ * (C) Copyright 2018 Ramon Fried <ramon.fried@gmail.com>
+ *
+ */
+
+#include "pinctrl-snapdragon.h"
+#include <common.h>
+
+#define MAX_PIN_NAME_LEN 32
+static char pin_name[MAX_PIN_NAME_LEN];
+static const char * const msm_pinctrl_pins[] = {
+ "SDC1_CLK",
+ "SDC1_CMD",
+ "SDC1_DATA",
+ "SDC2_CLK",
+ "SDC2_CMD",
+ "SDC2_DATA",
+ "QDSD_CLK",
+ "QDSD_CMD",
+ "QDSD_DATA0",
+ "QDSD_DATA1",
+ "QDSD_DATA2",
+ "QDSD_DATA3",
+};
+
+static const struct pinctrl_function msm_pinctrl_functions[] = {
+ {"blsp1_uart", 2},
+};
+
+static const char *apq8016_get_function_name(struct udevice *dev,
+ unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].name;
+}
+
+static const char *apq8016_get_pin_name(struct udevice *dev,
+ unsigned int selector)
+{
+ if (selector < 130) {
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "GPIO_%u", selector);
+ return pin_name;
+ } else {
+ return msm_pinctrl_pins[selector - 130];
+ }
+}
+
+static unsigned int apq8016_get_function_mux(unsigned int selector)
+{
+ return msm_pinctrl_functions[selector].val;
+}
+
+struct msm_pinctrl_data apq8016_data = {
+ .pin_count = 140,
+ .functions_count = ARRAY_SIZE(msm_pinctrl_functions),
+ .get_function_name = apq8016_get_function_name,
+ .get_function_mux = apq8016_get_function_mux,
+ .get_pin_name = apq8016_get_pin_name,
+};
+
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * TLMM driver for Qualcomm APQ8016, APQ8096
+ *
+ * (C) Copyright 2018 Ramon Fried <ramon.fried@gmail.com>
+ *
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <dm/pinctrl.h>
+#include "pinctrl-snapdragon.h"
+
+struct msm_pinctrl_priv {
+ phys_addr_t base;
+ struct msm_pinctrl_data *data;
+};
+
+#define GPIO_CONFIG_OFFSET(x) ((x) * 0x1000)
+#define TLMM_GPIO_PULL_MASK GENMASK(1, 0)
+#define TLMM_FUNC_SEL_MASK GENMASK(5, 2)
+#define TLMM_DRV_STRENGTH_MASK GENMASK(8, 6)
+#define TLMM_GPIO_ENABLE BIT(9)
+
+static const struct pinconf_param msm_conf_params[] = {
+ { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 3 },
+ { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
+};
+
+static int msm_get_functions_count(struct udevice *dev)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ return priv->data->functions_count;
+}
+
+static int msm_get_pins_count(struct udevice *dev)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ return priv->data->pin_count;
+}
+
+static const char *msm_get_function_name(struct udevice *dev,
+ unsigned int selector)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ return priv->data->get_function_name(dev, selector);
+}
+
+static int msm_pinctrl_probe(struct udevice *dev)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ priv->base = devfdt_get_addr(dev);
+ priv->data = (struct msm_pinctrl_data *)dev->driver_data;
+
+ return priv->base == FDT_ADDR_T_NONE ? -EINVAL : 0;
+}
+
+static const char *msm_get_pin_name(struct udevice *dev, unsigned int selector)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ return priv->data->get_pin_name(dev, selector);
+}
+
+static int msm_pinmux_set(struct udevice *dev, unsigned int pin_selector,
+ unsigned int func_selector)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ clrsetbits_le32(priv->base + GPIO_CONFIG_OFFSET(pin_selector),
+ TLMM_FUNC_SEL_MASK | TLMM_GPIO_ENABLE,
+ priv->data->get_function_mux(func_selector) << 2);
+ return 0;
+}
+
+static int msm_pinconf_set(struct udevice *dev, unsigned int pin_selector,
+ unsigned int param, unsigned int argument)
+{
+ struct msm_pinctrl_priv *priv = dev_get_priv(dev);
+
+ switch (param) {
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ clrsetbits_le32(priv->base + GPIO_CONFIG_OFFSET(pin_selector),
+ TLMM_DRV_STRENGTH_MASK, argument << 6);
+ break;
+ case PIN_CONFIG_BIAS_DISABLE:
+ clrbits_le32(priv->base + GPIO_CONFIG_OFFSET(pin_selector),
+ TLMM_GPIO_PULL_MASK);
+ break;
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+static struct pinctrl_ops msm_pinctrl_ops = {
+ .get_pins_count = msm_get_pins_count,
+ .get_pin_name = msm_get_pin_name,
+ .set_state = pinctrl_generic_set_state,
+ .pinmux_set = msm_pinmux_set,
+ .pinconf_num_params = ARRAY_SIZE(msm_conf_params),
+ .pinconf_params = msm_conf_params,
+ .pinconf_set = msm_pinconf_set,
+ .get_functions_count = msm_get_functions_count,
+ .get_function_name = msm_get_function_name,
+};
+
+static const struct udevice_id msm_pinctrl_ids[] = {
+ { .compatible = "qcom,tlmm-msm8916", .data = (ulong)&apq8016_data },
+ { .compatible = "qcom,tlmm-apq8016", .data = (ulong)&apq8016_data },
+ { }
+};
+
+U_BOOT_DRIVER(pinctrl_snapdraon) = {
+ .name = "pinctrl_msm",
+ .id = UCLASS_PINCTRL,
+ .of_match = msm_pinctrl_ids,
+ .priv_auto_alloc_size = sizeof(struct msm_pinctrl_priv),
+ .ops = &msm_pinctrl_ops,
+ .probe = msm_pinctrl_probe,
+};
projects / u-boot.git / commitdiff