[PATCH v2 21/28] pinctrl: renesas: rzg2l: add support for RZ/G3S SoC

From: Claudiu
Date: Fri Sep 29 2023 - 01:42:40 EST

From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>

Add basic support for RZ/G3S to be able to boot from SD card, have a
running console port and use GPIOs. RZ/G3S has 82 general-purpose IO
ports. Support for the remaining pin functions (e.g. Ethernet, XSPI)
will be added along with controller specific support.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---

Changes in v2:
- dropped [RZG2L_IOLH_IDX_2V5 ... RZG2L_IOLH_IDX_3V3 - 1] =
RZG2L_INVALID_IOLH_VAL initializations from v1 as these are not needed
anymore with the new code adjustements
- added BUILD_BUG_ON() for r9a08g045_gpio_configs[] in
rzg2l_pinctrl_probe()

drivers/pinctrl/renesas/pinctrl-rzg2l.c | 126 +++++++++++++++++++++++-
1 file changed, 124 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 8b74838510ad..57af2db445e1 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -58,13 +58,19 @@
#define PIN_CFG_IOLH_C BIT(13)
#define PIN_CFG_SOFT_PS BIT(14)

-#define RZG2L_MPXED_PIN_FUNCS (PIN_CFG_IOLH_A | \
- PIN_CFG_SR | \
+#define RZG2L_MPXED_COMMON_PIN_FUNCS(group) \
+ (PIN_CFG_IOLH_##group | \
PIN_CFG_PUPD | \
PIN_CFG_FILONOFF | \
PIN_CFG_FILNUM | \
PIN_CFG_FILCLKSEL)

+#define RZG2L_MPXED_PIN_FUNCS (RZG2L_MPXED_COMMON_PIN_FUNCS(A) | \
+ PIN_CFG_SR)
+
+#define RZG3S_MPXED_PIN_FUNCS(group) (RZG2L_MPXED_COMMON_PIN_FUNCS(group) | \
+ PIN_CFG_SOFT_PS)
+
#define RZG2L_MPXED_ETH_PIN_FUNCS(x) ((x) | \
PIN_CFG_FILONOFF | \
PIN_CFG_FILNUM | \
@@ -1313,6 +1319,36 @@ static const u32 r9a07g043_gpio_configs[] = {
RZG2L_GPIO_PORT_PACK(6, 0x22, RZG2L_MPXED_PIN_FUNCS),
};

+static const u32 r9a08g045_gpio_configs[] = {
+ RZG2L_GPIO_PORT_PACK(4, 0x20, RZG3S_MPXED_PIN_FUNCS(A)), /* P0 */
+ RZG2L_GPIO_PORT_PACK(5, 0x30, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH0)), /* P1 */
+ RZG2L_GPIO_PORT_PACK(4, 0x31, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH0)), /* P2 */
+ RZG2L_GPIO_PORT_PACK(4, 0x32, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH0)), /* P3 */
+ RZG2L_GPIO_PORT_PACK(6, 0x33, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH0)), /* P4 */
+ RZG2L_GPIO_PORT_PACK(5, 0x21, RZG3S_MPXED_PIN_FUNCS(A)), /* P5 */
+ RZG2L_GPIO_PORT_PACK(5, 0x22, RZG3S_MPXED_PIN_FUNCS(A)), /* P6 */
+ RZG2L_GPIO_PORT_PACK(5, 0x34, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH1)), /* P7 */
+ RZG2L_GPIO_PORT_PACK(5, 0x35, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH1)), /* P8 */
+ RZG2L_GPIO_PORT_PACK(4, 0x36, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH1)), /* P9 */
+ RZG2L_GPIO_PORT_PACK(5, 0x37, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_C |
+ PIN_CFG_IO_VMC_ETH1)), /* P10 */
+ RZG2L_GPIO_PORT_PACK(4, 0x23, RZG3S_MPXED_PIN_FUNCS(B) | PIN_CFG_IEN), /* P11 */
+ RZG2L_GPIO_PORT_PACK(2, 0x24, RZG3S_MPXED_PIN_FUNCS(B) | PIN_CFG_IEN), /* P12 */
+ RZG2L_GPIO_PORT_PACK(5, 0x25, RZG3S_MPXED_PIN_FUNCS(A)), /* P13 */
+ RZG2L_GPIO_PORT_PACK(3, 0x26, RZG3S_MPXED_PIN_FUNCS(A)), /* P14 */
+ RZG2L_GPIO_PORT_PACK(4, 0x27, RZG3S_MPXED_PIN_FUNCS(A)), /* P15 */
+ RZG2L_GPIO_PORT_PACK(2, 0x28, RZG3S_MPXED_PIN_FUNCS(A)), /* P16 */
+ RZG2L_GPIO_PORT_PACK(4, 0x29, RZG3S_MPXED_PIN_FUNCS(A)), /* P17 */
+ RZG2L_GPIO_PORT_PACK(6, 0x2a, RZG3S_MPXED_PIN_FUNCS(A)), /* P18 */
+};
+
static const struct {
struct rzg2l_dedicated_configs common[35];
struct rzg2l_dedicated_configs rzg2l_pins[7];
@@ -1399,6 +1435,46 @@ static const struct {
}
};

+static const struct rzg2l_dedicated_configs rzg3s_dedicated_pins[] = {
+ { "NMI", RZG2L_SINGLE_PIN_PACK(0x0, 0, (PIN_CFG_FILONOFF | PIN_CFG_FILNUM |
+ PIN_CFG_FILCLKSEL)) },
+ { "TMS/SWDIO", RZG2L_SINGLE_PIN_PACK(0x1, 0, (PIN_CFG_IOLH_A | PIN_CFG_IEN |
+ PIN_CFG_SOFT_PS)) },
+ { "TDO", RZG2L_SINGLE_PIN_PACK(0x1, 1, (PIN_CFG_IOLH_A | PIN_CFG_SOFT_PS)) },
+ { "WDTOVF_PERROUT#", RZG2L_SINGLE_PIN_PACK(0x6, 0, PIN_CFG_IOLH_A | PIN_CFG_SOFT_PS) },
+ { "SD0_CLK", RZG2L_SINGLE_PIN_PACK(0x10, 0, (PIN_CFG_IOLH_B | PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_CMD", RZG2L_SINGLE_PIN_PACK(0x10, 1, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_RST#", RZG2L_SINGLE_PIN_PACK(0x10, 2, (PIN_CFG_IOLH_B | PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA0", RZG2L_SINGLE_PIN_PACK(0x11, 0, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA1", RZG2L_SINGLE_PIN_PACK(0x11, 1, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA2", RZG2L_SINGLE_PIN_PACK(0x11, 2, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA3", RZG2L_SINGLE_PIN_PACK(0x11, 3, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA4", RZG2L_SINGLE_PIN_PACK(0x11, 4, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA5", RZG2L_SINGLE_PIN_PACK(0x11, 5, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA6", RZG2L_SINGLE_PIN_PACK(0x11, 6, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD0_DATA7", RZG2L_SINGLE_PIN_PACK(0x11, 7, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD0)) },
+ { "SD1_CLK", RZG2L_SINGLE_PIN_PACK(0x12, 0, (PIN_CFG_IOLH_B | PIN_CFG_IO_VMC_SD1)) },
+ { "SD1_CMD", RZG2L_SINGLE_PIN_PACK(0x12, 1, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD1)) },
+ { "SD1_DATA0", RZG2L_SINGLE_PIN_PACK(0x13, 0, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD1)) },
+ { "SD1_DATA1", RZG2L_SINGLE_PIN_PACK(0x13, 1, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD1)) },
+ { "SD1_DATA2", RZG2L_SINGLE_PIN_PACK(0x13, 2, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD1)) },
+ { "SD1_DATA3", RZG2L_SINGLE_PIN_PACK(0x13, 3, (PIN_CFG_IOLH_B | PIN_CFG_IEN |
+ PIN_CFG_IO_VMC_SD1)) },
+};
+
static int rzg2l_gpio_get_gpioint(unsigned int virq, const struct rzg2l_pinctrl_data *data)
{
unsigned int gpioint;
@@ -1760,6 +1836,9 @@ static int rzg2l_pinctrl_probe(struct platform_device *pdev)
BUILD_BUG_ON(ARRAY_SIZE(r9a07g043_gpio_configs) * RZG2L_PINS_PER_PORT >
ARRAY_SIZE(rzg2l_gpio_names));

+ BUILD_BUG_ON(ARRAY_SIZE(r9a08g045_gpio_configs) * RZG2L_PINS_PER_PORT >
+ ARRAY_SIZE(rzg2l_gpio_names));
+
pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
if (!pctrl)
return -ENOMEM;
@@ -1805,6 +1884,35 @@ static const struct rzg2l_hwcfg rzg2l_hwcfg = {
.iolh_groupb_oi = { 100, 66, 50, 33, },
};

+static const struct rzg2l_hwcfg rzg3s_hwcfg = {
+ .regs = {
+ .pwpr = 0x3000,
+ .sd_ch = 0x3004,
+ },
+ .iolh_groupa_ua = {
+ /* 1v8 power source */
+ [RZG2L_IOLH_IDX_1V8] = 2200, 4400, 9000, 10000,
+ /* 3v3 power source */
+ [RZG2L_IOLH_IDX_3V3] = 1900, 4000, 8000, 9000,
+ },
+ .iolh_groupb_ua = {
+ /* 1v8 power source */
+ [RZG2L_IOLH_IDX_1V8] = 7000, 8000, 9000, 10000,
+ /* 3v3 power source */
+ [RZG2L_IOLH_IDX_3V3] = 4000, 6000, 8000, 9000,
+ },
+ .iolh_groupc_ua = {
+ /* 1v8 power source */
+ [RZG2L_IOLH_IDX_1V8] = 5200, 6000, 6550, 6800,
+ /* 2v5 source */
+ [RZG2L_IOLH_IDX_2V5] = 4700, 5300, 5800, 6100,
+ /* 3v3 power source */
+ [RZG2L_IOLH_IDX_3V3] = 4500, 5200, 5700, 6050,
+ },
+ .drive_strength_ua = true,
+ .func_base = 1,
+};
+
static struct rzg2l_pinctrl_data r9a07g043_data = {
.port_pins = rzg2l_gpio_names,
.port_pin_configs = r9a07g043_gpio_configs,
@@ -1826,6 +1934,16 @@ static struct rzg2l_pinctrl_data r9a07g044_data = {
.hwcfg = &rzg2l_hwcfg,
};

+static struct rzg2l_pinctrl_data r9a08g045_data = {
+ .port_pins = rzg2l_gpio_names,
+ .port_pin_configs = r9a08g045_gpio_configs,
+ .n_ports = ARRAY_SIZE(r9a08g045_gpio_configs),
+ .dedicated_pins = rzg3s_dedicated_pins,
+ .n_port_pins = ARRAY_SIZE(r9a08g045_gpio_configs) * RZG2L_PINS_PER_PORT,
+ .n_dedicated_pins = ARRAY_SIZE(rzg3s_dedicated_pins),
+ .hwcfg = &rzg3s_hwcfg,
+};
+
static const struct of_device_id rzg2l_pinctrl_of_table[] = {
{
.compatible = "renesas,r9a07g043-pinctrl",
@@ -1835,6 +1953,10 @@ static const struct of_device_id rzg2l_pinctrl_of_table[] = {
.compatible = "renesas,r9a07g044-pinctrl",
.data = &r9a07g044_data,
},
+ {
+ .compatible = "renesas,r9a08g045-pinctrl",
+ .data = &r9a08g045_data,
+ },
{ /* sentinel */ }
};

--
2.39.2