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path: root/drivers/pinctrl/pinctrl-ingenic.c
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Diffstat (limited to 'drivers/pinctrl/pinctrl-ingenic.c')
-rw-r--r--drivers/pinctrl/pinctrl-ingenic.c232
1 files changed, 216 insertions, 16 deletions
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 4df6ba4de97e..24cc803fd450 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -3,8 +3,8 @@
* Ingenic SoCs pinctrl driver
*
* Copyright (c) 2017 Paul Cercueil <paul@crapouillou.net>
- * Copyright (c) 2019 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
* Copyright (c) 2017, 2019 Paul Boddie <paul@boddie.org.uk>
+ * Copyright (c) 2019, 2020 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
*/
#include <linux/compiler.h>
@@ -29,6 +29,17 @@
#define GPIO_PIN 0x00
#define GPIO_MSK 0x20
+#define JZ4730_GPIO_DATA 0x00
+#define JZ4730_GPIO_GPDIR 0x04
+#define JZ4730_GPIO_GPPUR 0x0c
+#define JZ4730_GPIO_GPALR 0x10
+#define JZ4730_GPIO_GPAUR 0x14
+#define JZ4730_GPIO_GPIDLR 0x18
+#define JZ4730_GPIO_GPIDUR 0x1c
+#define JZ4730_GPIO_GPIER 0x20
+#define JZ4730_GPIO_GPIMR 0x24
+#define JZ4730_GPIO_GPFR 0x28
+
#define JZ4740_GPIO_DATA 0x10
#define JZ4740_GPIO_PULL_DIS 0x30
#define JZ4740_GPIO_FUNC 0x40
@@ -57,6 +68,7 @@
#define GPIO_PULL_DOWN 2
#define PINS_PER_GPIO_CHIP 32
+#define JZ4730_PINS_PER_PAIRED_REG 16
#define INGENIC_PIN_GROUP_FUNCS(name, id, funcs) \
{ \
@@ -70,6 +82,7 @@
INGENIC_PIN_GROUP_FUNCS(name, id, (void *)(func))
enum jz_version {
+ ID_JZ4730,
ID_JZ4740,
ID_JZ4725B,
ID_JZ4760,
@@ -110,6 +123,99 @@ struct ingenic_gpio_chip {
unsigned int irq, reg_base;
};
+static const u32 jz4730_pull_ups[4] = {
+ 0x3fa3320f, 0xf200ffff, 0xffffffff, 0xffffffff,
+};
+
+static const u32 jz4730_pull_downs[4] = {
+ 0x00000df0, 0x0dff0000, 0x00000000, 0x00000000,
+};
+
+static int jz4730_mmc_1bit_pins[] = { 0x27, 0x26, 0x22, };
+static int jz4730_mmc_4bit_pins[] = { 0x23, 0x24, 0x25, };
+static int jz4730_uart0_data_pins[] = { 0x7e, 0x7f, };
+static int jz4730_uart1_data_pins[] = { 0x18, 0x19, };
+static int jz4730_uart2_data_pins[] = { 0x6f, 0x7d, };
+static int jz4730_uart3_data_pins[] = { 0x10, 0x15, };
+static int jz4730_uart3_hwflow_pins[] = { 0x11, 0x17, };
+static int jz4730_lcd_8bit_pins[] = {
+ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+ 0x3a, 0x39, 0x38,
+};
+static int jz4730_lcd_16bit_pins[] = {
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+};
+static int jz4730_lcd_special_pins[] = { 0x3d, 0x3c, 0x3e, 0x3f, };
+static int jz4730_lcd_generic_pins[] = { 0x3b, };
+static int jz4730_nand_cs1_pins[] = { 0x53, };
+static int jz4730_nand_cs2_pins[] = { 0x54, };
+static int jz4730_nand_cs3_pins[] = { 0x55, };
+static int jz4730_nand_cs4_pins[] = { 0x56, };
+static int jz4730_nand_cs5_pins[] = { 0x57, };
+static int jz4730_pwm_pwm0_pins[] = { 0x5e, };
+static int jz4730_pwm_pwm1_pins[] = { 0x5f, };
+
+static u8 jz4730_lcd_8bit_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, };
+
+static const struct group_desc jz4730_groups[] = {
+ INGENIC_PIN_GROUP("mmc-1bit", jz4730_mmc_1bit, 1),
+ INGENIC_PIN_GROUP("mmc-4bit", jz4730_mmc_4bit, 1),
+ INGENIC_PIN_GROUP("uart0-data", jz4730_uart0_data, 1),
+ INGENIC_PIN_GROUP("uart1-data", jz4730_uart1_data, 1),
+ INGENIC_PIN_GROUP("uart2-data", jz4730_uart2_data, 1),
+ INGENIC_PIN_GROUP("uart3-data", jz4730_uart3_data, 1),
+ INGENIC_PIN_GROUP("uart3-hwflow", jz4730_uart3_hwflow, 1),
+ INGENIC_PIN_GROUP_FUNCS("lcd-8bit", jz4730_lcd_8bit, jz4730_lcd_8bit_funcs),
+ INGENIC_PIN_GROUP("lcd-16bit", jz4730_lcd_16bit, 1),
+ INGENIC_PIN_GROUP("lcd-special", jz4730_lcd_special, 1),
+ INGENIC_PIN_GROUP("lcd-generic", jz4730_lcd_generic, 1),
+ INGENIC_PIN_GROUP("nand-cs1", jz4730_nand_cs1, 1),
+ INGENIC_PIN_GROUP("nand-cs2", jz4730_nand_cs2, 1),
+ INGENIC_PIN_GROUP("nand-cs3", jz4730_nand_cs3, 1),
+ INGENIC_PIN_GROUP("nand-cs4", jz4730_nand_cs4, 1),
+ INGENIC_PIN_GROUP("nand-cs5", jz4730_nand_cs5, 1),
+ INGENIC_PIN_GROUP("pwm0", jz4730_pwm_pwm0, 1),
+ INGENIC_PIN_GROUP("pwm1", jz4730_pwm_pwm1, 1),
+};
+
+static const char *jz4730_mmc_groups[] = { "mmc-1bit", "mmc-4bit", };
+static const char *jz4730_uart0_groups[] = { "uart0-data", };
+static const char *jz4730_uart1_groups[] = { "uart1-data", };
+static const char *jz4730_uart2_groups[] = { "uart2-data", };
+static const char *jz4730_uart3_groups[] = { "uart3-data", "uart3-hwflow", };
+static const char *jz4730_lcd_groups[] = {
+ "lcd-8bit", "lcd-16bit", "lcd-special", "lcd-generic",
+};
+static const char *jz4730_nand_groups[] = {
+ "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4", "nand-cs5",
+};
+static const char *jz4730_pwm0_groups[] = { "pwm0", };
+static const char *jz4730_pwm1_groups[] = { "pwm1", };
+
+static const struct function_desc jz4730_functions[] = {
+ { "mmc", jz4730_mmc_groups, ARRAY_SIZE(jz4730_mmc_groups), },
+ { "uart0", jz4730_uart0_groups, ARRAY_SIZE(jz4730_uart0_groups), },
+ { "uart1", jz4730_uart1_groups, ARRAY_SIZE(jz4730_uart1_groups), },
+ { "uart2", jz4730_uart2_groups, ARRAY_SIZE(jz4730_uart2_groups), },
+ { "uart3", jz4730_uart3_groups, ARRAY_SIZE(jz4730_uart3_groups), },
+ { "lcd", jz4730_lcd_groups, ARRAY_SIZE(jz4730_lcd_groups), },
+ { "nand", jz4730_nand_groups, ARRAY_SIZE(jz4730_nand_groups), },
+ { "pwm0", jz4730_pwm0_groups, ARRAY_SIZE(jz4730_pwm0_groups), },
+ { "pwm1", jz4730_pwm1_groups, ARRAY_SIZE(jz4730_pwm1_groups), },
+};
+
+static const struct ingenic_chip_info jz4730_chip_info = {
+ .num_chips = 4,
+ .reg_offset = 0x30,
+ .version = ID_JZ4730,
+ .groups = jz4730_groups,
+ .num_groups = ARRAY_SIZE(jz4730_groups),
+ .functions = jz4730_functions,
+ .num_functions = ARRAY_SIZE(jz4730_functions),
+ .pull_ups = jz4730_pull_ups,
+ .pull_downs = jz4730_pull_downs,
+};
+
static const u32 jz4740_pull_ups[4] = {
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
};
@@ -1703,6 +1809,12 @@ static u32 ingenic_gpio_read_reg(struct ingenic_gpio_chip *jzgc, u8 reg)
static void ingenic_gpio_set_bit(struct ingenic_gpio_chip *jzgc,
u8 reg, u8 offset, bool set)
{
+ if (jzgc->jzpc->info->version == ID_JZ4730) {
+ regmap_update_bits(jzgc->jzpc->map, jzgc->reg_base + reg,
+ BIT(offset), set ? BIT(offset) : 0);
+ return;
+ }
+
if (set)
reg = REG_SET(reg);
else
@@ -1730,6 +1842,20 @@ static void ingenic_gpio_shadow_set_bit_load(struct ingenic_gpio_chip *jzgc)
jzgc->gc.base / PINS_PER_GPIO_CHIP);
}
+static void jz4730_gpio_set_bits(struct ingenic_gpio_chip *jzgc,
+ u8 reg_upper, u8 reg_lower, u8 offset, u8 value)
+{
+ /*
+ * JZ4730 function and IRQ registers support two-bits-per-pin
+ * definitions, split into two groups of 16.
+ */
+ u8 reg = offset < JZ4730_PINS_PER_PAIRED_REG ? reg_lower : reg_upper;
+ unsigned int idx = offset % JZ4730_PINS_PER_PAIRED_REG;
+ unsigned int mask = GENMASK(1, 0) << idx * 2;
+
+ regmap_update_bits(jzgc->jzpc->map, jzgc->reg_base + reg, mask, value << (idx * 2));
+}
+
static inline bool ingenic_gpio_get_value(struct ingenic_gpio_chip *jzgc,
u8 offset)
{
@@ -1743,8 +1869,10 @@ static void ingenic_gpio_set_value(struct ingenic_gpio_chip *jzgc,
{
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_PAT0, offset, !!value);
- else
+ else if (jzgc->jzpc->info->version >= ID_JZ4740)
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_DATA, offset, !!value);
}
static void irq_set_type(struct ingenic_gpio_chip *jzgc,
@@ -1774,9 +1902,14 @@ static void irq_set_type(struct ingenic_gpio_chip *jzgc,
if (jzgc->jzpc->info->version >= ID_JZ4770) {
reg1 = JZ4770_GPIO_PAT1;
reg2 = JZ4770_GPIO_PAT0;
- } else {
+ } else if (jzgc->jzpc->info->version >= ID_JZ4740) {
reg1 = JZ4740_GPIO_TRIG;
reg2 = JZ4740_GPIO_DIR;
+ } else {
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPDIR, offset, false);
+ jz4730_gpio_set_bits(jzgc, JZ4730_GPIO_GPIDUR,
+ JZ4730_GPIO_GPIDLR, offset, (val2 << 1) | val1);
+ return;
}
if (jzgc->jzpc->info->version >= ID_X1000) {
@@ -1793,16 +1926,24 @@ static void ingenic_gpio_irq_mask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
+ int irq = irqd->hwirq;
- ingenic_gpio_set_bit(jzgc, GPIO_MSK, irqd->hwirq, true);
+ if (jzgc->jzpc->info->version >= ID_JZ4740)
+ ingenic_gpio_set_bit(jzgc, GPIO_MSK, irq, true);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPIMR, irq, true);
}
static void ingenic_gpio_irq_unmask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
+ int irq = irqd->hwirq;
- ingenic_gpio_set_bit(jzgc, GPIO_MSK, irqd->hwirq, false);
+ if (jzgc->jzpc->info->version >= ID_JZ4740)
+ ingenic_gpio_set_bit(jzgc, GPIO_MSK, irq, false);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPIMR, irq, false);
}
static void ingenic_gpio_irq_enable(struct irq_data *irqd)
@@ -1813,8 +1954,10 @@ static void ingenic_gpio_irq_enable(struct irq_data *irqd)
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_INT, irq, true);
- else
+ else if (jzgc->jzpc->info->version >= ID_JZ4740)
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPIER, irq, true);
ingenic_gpio_irq_unmask(irqd);
}
@@ -1829,8 +1972,10 @@ static void ingenic_gpio_irq_disable(struct irq_data *irqd)
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_INT, irq, false);
- else
+ else if (jzgc->jzpc->info->version >= ID_JZ4740)
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPIER, irq, false);
}
static void ingenic_gpio_irq_ack(struct irq_data *irqd)
@@ -1854,8 +1999,10 @@ static void ingenic_gpio_irq_ack(struct irq_data *irqd)
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_FLAG, irq, false);
- else
+ else if (jzgc->jzpc->info->version >= ID_JZ4740)
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true);
+ else
+ ingenic_gpio_set_bit(jzgc, JZ4730_GPIO_GPFR, irq, false);
}
static int ingenic_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
@@ -1911,8 +2058,10 @@ static void ingenic_gpio_irq_handler(struct irq_desc *desc)
if (jzgc->jzpc->info->version >= ID_JZ4770)
flag = ingenic_gpio_read_reg(jzgc, JZ4770_GPIO_FLAG);
- else
+ else if (jzgc->jzpc->info->version >= ID_JZ4740)
flag = ingenic_gpio_read_reg(jzgc, JZ4740_GPIO_FLAG);
+ else
+ flag = ingenic_gpio_read_reg(jzgc, JZ4730_GPIO_GPFR);
for_each_set_bit(i, &flag, 32)
generic_handle_irq(irq_linear_revmap(gc->irq.domain, i));
@@ -1953,8 +2102,21 @@ static inline void ingenic_config_pin(struct ingenic_pinctrl *jzpc,
unsigned int idx = pin % PINS_PER_GPIO_CHIP;
unsigned int offt = pin / PINS_PER_GPIO_CHIP;
- regmap_write(jzpc->map, offt * jzpc->info->reg_offset +
- (set ? REG_SET(reg) : REG_CLEAR(reg)), BIT(idx));
+ if (set) {
+ if (jzpc->info->version >= ID_JZ4740)
+ regmap_write(jzpc->map, offt * jzpc->info->reg_offset +
+ REG_SET(reg), BIT(idx));
+ else
+ regmap_set_bits(jzpc->map, offt * jzpc->info->reg_offset +
+ reg, BIT(idx));
+ } else {
+ if (jzpc->info->version >= ID_JZ4740)
+ regmap_write(jzpc->map, offt * jzpc->info->reg_offset +
+ REG_CLEAR(reg), BIT(idx));
+ else
+ regmap_clear_bits(jzpc->map, offt * jzpc->info->reg_offset +
+ reg, BIT(idx));
+ }
}
static inline void ingenic_shadow_config_pin(struct ingenic_pinctrl *jzpc,
@@ -1973,6 +2135,22 @@ static inline void ingenic_shadow_config_pin_load(struct ingenic_pinctrl *jzpc,
pin / PINS_PER_GPIO_CHIP);
}
+static inline void jz4730_config_pin_function(struct ingenic_pinctrl *jzpc,
+ unsigned int pin, u8 reg_upper, u8 reg_lower, u8 value)
+{
+ /*
+ * JZ4730 function and IRQ registers support two-bits-per-pin
+ * definitions, split into two groups of 16.
+ */
+ unsigned int idx = pin % JZ4730_PINS_PER_PAIRED_REG;
+ unsigned int mask = GENMASK(1, 0) << idx * 2;
+ unsigned int offt = pin / PINS_PER_GPIO_CHIP;
+ u8 reg = (pin % PINS_PER_GPIO_CHIP) < JZ4730_PINS_PER_PAIRED_REG ? reg_lower : reg_upper;
+
+ regmap_update_bits(jzpc->map, offt * jzpc->info->reg_offset + reg,
+ mask, value << (idx * 2));
+}
+
static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc,
unsigned int pin, u8 reg)
{
@@ -1996,6 +2174,10 @@ static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PAT1))
return GPIO_LINE_DIRECTION_IN;
return GPIO_LINE_DIRECTION_OUT;
+ } else if (jzpc->info->version == ID_JZ4730) {
+ if (!ingenic_get_pin_config(jzpc, pin, JZ4730_GPIO_GPDIR))
+ return GPIO_LINE_DIRECTION_IN;
+ return GPIO_LINE_DIRECTION_OUT;
}
if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_SELECT))
@@ -2054,10 +2236,13 @@ static int ingenic_pinmux_set_pin_fn(struct ingenic_pinctrl *jzpc,
ingenic_config_pin(jzpc, pin, GPIO_MSK, false);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1);
- } else {
+ } else if (jzpc->info->version >= ID_JZ4740) {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, true);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_TRIG, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, func & 0x1);
+ } else {
+ ingenic_config_pin(jzpc, pin, JZ4730_GPIO_GPIER, false);
+ jz4730_config_pin_function(jzpc, pin, JZ4730_GPIO_GPAUR, JZ4730_GPIO_GPALR, func);
}
return 0;
@@ -2118,10 +2303,14 @@ static int ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_config_pin(jzpc, pin, GPIO_MSK, true);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input);
- } else {
+ } else if (jzpc->info->version >= ID_JZ4740) {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, false);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DIR, !input);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, false);
+ } else {
+ ingenic_config_pin(jzpc, pin, JZ4730_GPIO_GPIER, false);
+ ingenic_config_pin(jzpc, pin, JZ4730_GPIO_GPDIR, !input);
+ jz4730_config_pin_function(jzpc, pin, JZ4730_GPIO_GPAUR, JZ4730_GPIO_GPALR, 0);
}
return 0;
@@ -2164,8 +2353,10 @@ static int ingenic_pinconf_get(struct pinctrl_dev *pctldev,
} else {
if (jzpc->info->version >= ID_JZ4770)
pull = !ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PEN);
- else
+ else if (jzpc->info->version >= ID_JZ4740)
pull = !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_PULL_DIS);
+ else
+ pull = ingenic_get_pin_config(jzpc, pin, JZ4730_GPIO_GPPUR);
pullup = pull && (jzpc->info->pull_ups[offt] & BIT(idx));
pulldown = pull && (jzpc->info->pull_downs[offt] & BIT(idx));
@@ -2218,8 +2409,10 @@ static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
} else if (jzpc->info->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PEN, !bias);
- } else {
+ } else if (jzpc->info->version >= ID_JZ4740) {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !bias);
+ } else {
+ ingenic_config_pin(jzpc, pin, JZ4730_GPIO_GPPUR, bias);
}
}
@@ -2228,8 +2421,10 @@ static void ingenic_set_output_level(struct ingenic_pinctrl *jzpc,
{
if (jzpc->info->version >= ID_JZ4770)
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, high);
- else
+ else if (jzpc->info->version >= ID_JZ4740)
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DATA, high);
+ else
+ ingenic_config_pin(jzpc, pin, JZ4730_GPIO_DATA, high);
}
static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
@@ -2358,6 +2553,7 @@ static const struct regmap_config ingenic_pinctrl_regmap_config = {
};
static const struct of_device_id ingenic_gpio_of_match[] __initconst = {
+ { .compatible = "ingenic,jz4730-gpio", },
{ .compatible = "ingenic,jz4740-gpio", },
{ .compatible = "ingenic,jz4725b-gpio", },
{ .compatible = "ingenic,jz4760-gpio", },
@@ -2554,6 +2750,10 @@ static int __init ingenic_pinctrl_probe(struct platform_device *pdev)
static const struct of_device_id ingenic_pinctrl_of_match[] = {
{
+ .compatible = "ingenic,jz4730-pinctrl",
+ .data = IF_ENABLED(CONFIG_MACH_JZ4730, &jz4730_chip_info)
+ },
+ {
.compatible = "ingenic,jz4740-pinctrl",
.data = IF_ENABLED(CONFIG_MACH_JZ4740, &jz4740_chip_info)
},
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-27 14:32:22 +0300