| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * RZ/G2L Pin Function Controller |
| * |
| * Copyright (C) 2021-2023 Renesas Electronics Corp. |
| */ |
| |
| #include <common.h> |
| #include <asm/io.h> |
| #include <clk.h> |
| #include <dm.h> |
| #include <dm/device-internal.h> |
| #include <dm/device.h> |
| #include <dm/device_compat.h> |
| #include <dm/devres.h> |
| #include <dm/lists.h> |
| #include <dm/pinctrl.h> |
| #include <renesas/rzg2l-pfc.h> |
| #include <reset.h> |
| |
| struct rzg2l_pfc_driver_data { |
| uint num_dedicated_pins; |
| uint num_ports; |
| const u32 *gpio_configs; |
| }; |
| |
| struct rzg2l_dedicated_configs { |
| const char *name; |
| u32 config; |
| }; |
| |
| /* |
| * We need to ensure that the module clock is enabled and all resets are |
| * de-asserted before using either the gpio or pinctrl functionality. Error |
| * handling can be quite simple here as if the PFC cannot be enabled then we |
| * will not be able to progress with the boot anyway. |
| */ |
| int rzg2l_pfc_enable(struct udevice *dev) |
| { |
| struct reset_ctl_bulk rsts; |
| struct clk clk; |
| int ret; |
| |
| ret = clk_get_by_index(dev, 0, &clk); |
| if (ret < 0) { |
| dev_err(dev, "failed to get gpio module clock\n"); |
| return ret; |
| } |
| |
| ret = clk_enable(&clk); |
| if (ret < 0) { |
| dev_err(dev, "failed to enable gpio module clock\n"); |
| return ret; |
| } |
| |
| ret = reset_get_bulk(dev, &rsts); |
| if (ret < 0) { |
| dev_err(dev, "failed to get reset lines\n"); |
| return ret; |
| } |
| |
| ret = reset_deassert_bulk(&rsts); |
| if (ret < 0) { |
| dev_err(dev, "failed to de-assert reset lines\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| bool rzg2l_port_validate(const struct rzg2l_pfc_data *data, u32 port, u8 pin) |
| { |
| return (port < data->num_ports) && |
| (pin < RZG2L_GPIO_PORT_GET_PINCNT(data->gpio_configs[port])); |
| } |
| |
| /* Decode a pin selector, returning the port index and setting *pin to the pin |
| * index. Returns -1 on error, which can be checked directly or by calling |
| * rzg2l_port_validate(). |
| */ |
| static int rzg2l_selector_decode(const struct rzg2l_pfc_data *data, |
| unsigned int selector, |
| u8 *pin) |
| { |
| int port; |
| |
| selector -= data->num_dedicated_pins; |
| for (port = 0; port < data->num_ports; port++) { |
| u8 num_pins = RZG2L_GPIO_PORT_GET_PINCNT(data->gpio_configs[port]); |
| if (selector < num_pins) { |
| *pin = (u8)selector; |
| return port; |
| } |
| selector -= num_pins; |
| } |
| return -EINVAL; |
| } |
| |
| static unsigned int rzg2l_selector_encode(const struct rzg2l_pfc_data *data, |
| u32 port, u8 pin) |
| { |
| unsigned int selector = data->num_dedicated_pins + pin; |
| u32 i; |
| |
| for (i = 0; i < port; i++) |
| selector += RZG2L_GPIO_PORT_GET_PINCNT(data->gpio_configs[i]); |
| |
| return selector; |
| } |
| |
| static const char * const rzg2l_gpio_names[] = { |
| "P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7", |
| "P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7", |
| "P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7", |
| "P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7", |
| "P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7", |
| "P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7", |
| "P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7", |
| "P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7", |
| "P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7", |
| "P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7", |
| "P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7", |
| "P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7", |
| "P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7", |
| "P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7", |
| "P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7", |
| "P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7", |
| "P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7", |
| "P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7", |
| "P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7", |
| "P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7", |
| "P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7", |
| "P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7", |
| "P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7", |
| "P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7", |
| "P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7", |
| "P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7", |
| "P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7", |
| "P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7", |
| "P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7", |
| "P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7", |
| "P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7", |
| "P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7", |
| "P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7", |
| "P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7", |
| "P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7", |
| "P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7", |
| "P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7", |
| "P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7", |
| "P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7", |
| "P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7", |
| "P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7", |
| "P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7", |
| "P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7", |
| "P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7", |
| "P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7", |
| "P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7", |
| "P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7", |
| "P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7", |
| "P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7", |
| }; |
| |
| static const u32 r9a07g044_gpio_configs[] = { |
| RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x21, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH0)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IO_VMC_ETH1)), |
| RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MPXED_PIN_FUNCS), |
| RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MPXED_PIN_FUNCS), |
| }; |
| |
| static const struct { |
| struct rzg2l_dedicated_configs common[35]; |
| struct rzg2l_dedicated_configs rzg2l_pins[7]; |
| } rzg2l_dedicated_pins = { |
| .common = { |
| { "NMI", RZG2L_SINGLE_PIN_PACK(0x1, 0, |
| (PIN_CFG_FILONOFF | PIN_CFG_FILNUM | PIN_CFG_FILCLKSEL)) }, |
| { "TMS/SWDIO", RZG2L_SINGLE_PIN_PACK(0x2, 0, |
| (PIN_CFG_IOLH_A | PIN_CFG_SR | PIN_CFG_IEN)) }, |
| { "TDO", RZG2L_SINGLE_PIN_PACK(0x3, 0, |
| (PIN_CFG_IOLH_A | PIN_CFG_SR | PIN_CFG_IEN)) }, |
| { "AUDIO_CLK1", RZG2L_SINGLE_PIN_PACK(0x4, 0, PIN_CFG_IEN) }, |
| { "AUDIO_CLK2", RZG2L_SINGLE_PIN_PACK(0x4, 1, PIN_CFG_IEN) }, |
| { "SD0_CLK", RZG2L_SINGLE_PIN_PACK(0x6, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_CMD", RZG2L_SINGLE_PIN_PACK(0x6, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_RST#", RZG2L_SINGLE_PIN_PACK(0x6, 2, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA0", RZG2L_SINGLE_PIN_PACK(0x7, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA1", RZG2L_SINGLE_PIN_PACK(0x7, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA2", RZG2L_SINGLE_PIN_PACK(0x7, 2, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA3", RZG2L_SINGLE_PIN_PACK(0x7, 3, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA4", RZG2L_SINGLE_PIN_PACK(0x7, 4, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA5", RZG2L_SINGLE_PIN_PACK(0x7, 5, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA6", RZG2L_SINGLE_PIN_PACK(0x7, 6, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD0_DATA7", RZG2L_SINGLE_PIN_PACK(0x7, 7, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD0)) }, |
| { "SD1_CLK", RZG2L_SINGLE_PIN_PACK(0x8, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_SD1)) }, |
| { "SD1_CMD", RZG2L_SINGLE_PIN_PACK(0x8, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) }, |
| { "SD1_DATA0", RZG2L_SINGLE_PIN_PACK(0x9, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) }, |
| { "SD1_DATA1", RZG2L_SINGLE_PIN_PACK(0x9, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) }, |
| { "SD1_DATA2", RZG2L_SINGLE_PIN_PACK(0x9, 2, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) }, |
| { "SD1_DATA3", RZG2L_SINGLE_PIN_PACK(0x9, 3, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IEN | PIN_CFG_IO_VMC_SD1)) }, |
| { "QSPI0_SPCLK", RZG2L_SINGLE_PIN_PACK(0xa, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI0_IO0", RZG2L_SINGLE_PIN_PACK(0xa, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI0_IO1", RZG2L_SINGLE_PIN_PACK(0xa, 2, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI0_IO2", RZG2L_SINGLE_PIN_PACK(0xa, 3, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI0_IO3", RZG2L_SINGLE_PIN_PACK(0xa, 4, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI0_SSL", RZG2L_SINGLE_PIN_PACK(0xa, 5, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI_RESET#", RZG2L_SINGLE_PIN_PACK(0xc, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI_WP#", RZG2L_SINGLE_PIN_PACK(0xc, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "WDTOVF_PERROUT#", RZG2L_SINGLE_PIN_PACK(0xd, 0, (PIN_CFG_IOLH_A | PIN_CFG_SR)) }, |
| { "RIIC0_SDA", RZG2L_SINGLE_PIN_PACK(0xe, 0, PIN_CFG_IEN) }, |
| { "RIIC0_SCL", RZG2L_SINGLE_PIN_PACK(0xe, 1, PIN_CFG_IEN) }, |
| { "RIIC1_SDA", RZG2L_SINGLE_PIN_PACK(0xe, 2, PIN_CFG_IEN) }, |
| { "RIIC1_SCL", RZG2L_SINGLE_PIN_PACK(0xe, 3, PIN_CFG_IEN) }, |
| }, |
| .rzg2l_pins = { |
| { "QSPI_INT#", RZG2L_SINGLE_PIN_PACK(0xc, 2, (PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_SPCLK", RZG2L_SINGLE_PIN_PACK(0xb, 0, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_IO0", RZG2L_SINGLE_PIN_PACK(0xb, 1, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_IO1", RZG2L_SINGLE_PIN_PACK(0xb, 2, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_IO2", RZG2L_SINGLE_PIN_PACK(0xb, 3, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_IO3", RZG2L_SINGLE_PIN_PACK(0xb, 4, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| { "QSPI1_SSL", RZG2L_SINGLE_PIN_PACK(0xb, 5, |
| (PIN_CFG_IOLH_B | PIN_CFG_SR | PIN_CFG_IO_VMC_QSPI)) }, |
| } |
| }; |
| |
| static void rzg2l_rmw_pin_config(const struct rzg2l_pfc_data *data, u32 offset, |
| u8 pin, u32 mask, u32 val) |
| { |
| void __iomem *addr = data->base + offset; |
| |
| /* handle _L/_H for 32-bit register read/write */ |
| if (pin >= 4) { |
| pin -= 4; |
| addr += 4; |
| } |
| |
| clrsetbits_le32(addr, mask << (pin * 8), val << (pin * 8)); |
| } |
| |
| static int rzg2l_get_pins_count(struct udevice *dev) |
| { |
| const struct rzg2l_pfc_data *data = |
| (const struct rzg2l_pfc_data *)dev_get_driver_data(dev); |
| |
| return data->num_dedicated_pins + data->num_pins; |
| } |
| |
| static const char *rzg2l_get_pin_name(struct udevice *dev, unsigned int selector) |
| { |
| const struct rzg2l_pfc_data *data = |
| (const struct rzg2l_pfc_data *)dev_get_driver_data(dev); |
| int port; |
| u8 pin; |
| |
| if (selector < data->num_dedicated_pins) { |
| if (selector >= ARRAY_SIZE(rzg2l_dedicated_pins.common)) { |
| unsigned int u = selector - ARRAY_SIZE(rzg2l_dedicated_pins.common); |
| return rzg2l_dedicated_pins.rzg2l_pins[u].name; |
| } else { |
| return rzg2l_dedicated_pins.common[selector].name; |
| } |
| } |
| |
| port = rzg2l_selector_decode(data, selector, &pin); |
| if (port < 0) |
| return "(invalid pin)"; |
| return rzg2l_gpio_names[pin + 8 * port]; |
| } |
| |
| static int rzg2l_pinconf_set(struct udevice *dev, unsigned int pin_selector, |
| unsigned int param, unsigned int argument) |
| { |
| const struct rzg2l_pfc_data *data = |
| (const struct rzg2l_pfc_data *)dev_get_driver_data(dev); |
| u32 cfg, port_offset; |
| u8 pin; |
| |
| if (pin_selector >= data->num_dedicated_pins) { |
| /* The pin selector refers to a multiplexed pin */ |
| int port = rzg2l_selector_decode(data, pin_selector, &pin); |
| if (port < 0) { |
| dev_err(dev, "Invalid pin selector %u:%u\n", port, pin); |
| return port; |
| } |
| |
| cfg = data->gpio_configs[port]; |
| port_offset = P(port); |
| } else { |
| /* The pin selector refers to a dedicated function pin */ |
| const struct rzg2l_dedicated_configs *dedicated_config; |
| |
| if (pin_selector >= data->num_dedicated_pins) { |
| dev_err(dev, "Invalid dedicated pin %u\n", pin_selector); |
| return -EINVAL; |
| } |
| |
| if (pin_selector >= ARRAY_SIZE(rzg2l_dedicated_pins.common)) { |
| pin_selector -= ARRAY_SIZE(rzg2l_dedicated_pins.common); |
| dedicated_config = &rzg2l_dedicated_pins.rzg2l_pins[pin_selector]; |
| } else { |
| dedicated_config = &rzg2l_dedicated_pins.common[pin_selector]; |
| } |
| |
| port_offset = RZG2L_SINGLE_PIN_GET_PORT_OFFSET(dedicated_config->config); |
| pin = RZG2L_SINGLE_PIN_GET_BIT(dedicated_config->config); |
| cfg = RZG2L_SINGLE_PIN_GET_CFGS(dedicated_config->config); |
| } |
| |
| switch (param) { |
| case PIN_CONFIG_INPUT_ENABLE: { |
| if (!(cfg & PIN_CFG_IEN)) { |
| dev_err(dev, "pin does not support IEN\n"); |
| return -EINVAL; |
| } |
| |
| dev_dbg(dev, "port off %u:%u set IEN=%u\n", |
| port_offset, pin, argument); |
| rzg2l_rmw_pin_config(data, IEN(port_offset), pin, IEN_MASK, !!argument); |
| break; |
| } |
| |
| case PIN_CONFIG_POWER_SOURCE: { |
| u32 pwr_reg = 0x0; |
| |
| /* argument is in mV */ |
| if (argument != 1800 && argument != 3300) { |
| dev_err(dev, "Invalid mV %u\n", argument); |
| return -EINVAL; |
| } |
| |
| /* |
| * TODO: PIN_CFG_IO_VMC_ETH0 & PIN_CFG_IO_VMC_ETH1 will be |
| * handled when the RZ/G2L Ethernet driver is added. |
| */ |
| if (cfg & PIN_CFG_IO_VMC_SD0) { |
| dev_dbg(dev, "port off %u:%u set SD_CH 0 PVDD=%u\n", |
| port_offset, pin, argument); |
| pwr_reg = SD_CH(0); |
| } else if (cfg & PIN_CFG_IO_VMC_SD1) { |
| dev_dbg(dev, "port off %u:%u set SD_CH 1 PVDD=%u\n", |
| port_offset, pin, argument); |
| pwr_reg = SD_CH(1); |
| } else if (cfg & PIN_CFG_IO_VMC_QSPI) { |
| dev_dbg(dev, "port off %u:%u set QSPI PVDD=%u\n", |
| port_offset, pin, argument); |
| pwr_reg = QSPI; |
| } else { |
| dev_dbg(dev, "pin power source is not selectable\n"); |
| return -EINVAL; |
| } |
| |
| writel((argument == 1800) ? PVDD_1800 : PVDD_3300, |
| data->base + pwr_reg); |
| break; |
| } |
| |
| default: |
| dev_err(dev, "Invalid pinconf parameter\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int rzg2l_pinmux_property_set(struct udevice *dev, u32 pinmux_group) |
| { |
| const struct rzg2l_pfc_data *data = |
| (const struct rzg2l_pfc_data *)dev_get_driver_data(dev); |
| u32 port, pin, func, pfc_state; |
| u8 pmc_state; |
| |
| func = RZG2L_PINMUX_TO_FUNC(pinmux_group); |
| if (func > 5) { |
| dev_err(dev, "Invalid pin function %u\n", func); |
| return -EINVAL; |
| } |
| |
| port = RZG2L_PINMUX_TO_PORT(pinmux_group); |
| pin = RZG2L_PINMUX_TO_PIN(pinmux_group); |
| if (!rzg2l_port_validate(data, port, pin)) { |
| dev_err(dev, "Invalid pin selector %u:%u\n", port, pin); |
| return -EINVAL; |
| } |
| |
| /* Check current PMC & PFC to decide if we need to change anything. */ |
| pmc_state = readb(data->base + PMC(port)) & BIT(pin); |
| pfc_state = (readl(data->base + PFC(port)) >> (pin * 4)) & PFC_MASK; |
| if (pmc_state && pfc_state == func) |
| return 0; |
| |
| dev_dbg(dev, "pinmux port %u pin %u func %u\n", port, pin, func); |
| |
| /* Set pin to 'Non-use (Hi-Z input protection)' */ |
| clrbits_le16(data->base + PM(port), PM_MASK << (pin * 2)); |
| |
| /* Temporarily switch to GPIO mode with PMC register */ |
| clrbits_8(data->base + PMC(port), BIT(pin)); |
| |
| /* Set the PWPR register to allow PFC register to write */ |
| writel(0x0, data->base + PWPR); /* B0WI=0, PFCWE=0 */ |
| writel(PWPR_PFCWE, data->base + PWPR); /* B0WI=0, PFCWE=1 */ |
| |
| /* Select Pin function mode with PFC register */ |
| clrsetbits_le32(data->base + PFC(port), PFC_MASK << (pin * 4), |
| func << (pin * 4)); |
| |
| /* Set the PWPR register to be write-protected */ |
| writel(0x0, data->base + PWPR); /* B0WI=0, PFCWE=0 */ |
| writel(PWPR_B0WI, data->base + PWPR); /* B0WI=1, PFCWE=0 */ |
| |
| /* Switch to Peripheral pin function with PMC register */ |
| setbits_8(data->base + PMC(port), BIT(pin)); |
| |
| return rzg2l_selector_encode(data, port, pin); |
| } |
| |
| static int rzg2l_get_pin_muxing(struct udevice *dev, unsigned int selector, |
| char *buf, int size) |
| { |
| const struct rzg2l_pfc_data *data = |
| (const struct rzg2l_pfc_data *)dev_get_driver_data(dev); |
| u32 pmc_state; |
| int port; |
| u8 pin; |
| |
| if (selector < data->num_dedicated_pins) { |
| snprintf(buf, size, rzg2l_get_pin_name(dev, selector)); |
| return 0; |
| } |
| |
| port = rzg2l_selector_decode(data, selector, &pin); |
| if (port < 0) { |
| dev_err(dev, "Invalid pin selector %u:%u\n", port, pin); |
| return port; |
| } |
| |
| pmc_state = readb(data->base + PMC(port)) & BIT(pin); |
| if (pmc_state) { |
| u32 pfc_state = (readl(data->base + PFC(port)) >> (pin * 4)) & PFC_MASK; |
| snprintf(buf, size, "Function %d", pfc_state); |
| return 0; |
| } |
| |
| snprintf(buf, size, "GPIO"); |
| return 0; |
| } |
| |
| static const struct pinconf_param rzg2l_pinconf_params[] = { |
| { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, |
| { "power-source", PIN_CONFIG_POWER_SOURCE, 3300 /* mV */ }, |
| }; |
| |
| static const struct pinctrl_ops rzg2l_pinctrl_ops = { |
| .get_pins_count = rzg2l_get_pins_count, |
| .get_pin_name = rzg2l_get_pin_name, |
| |
| .pinconf_num_params = ARRAY_SIZE(rzg2l_pinconf_params), |
| .pinconf_params = rzg2l_pinconf_params, |
| .pinconf_set = rzg2l_pinconf_set, |
| |
| .pinmux_property_set = rzg2l_pinmux_property_set, |
| .set_state = pinctrl_generic_set_state, |
| .get_pin_muxing = rzg2l_get_pin_muxing, |
| }; |
| |
| static int rzg2l_pinctrl_probe(struct udevice *dev) |
| { |
| return rzg2l_pfc_enable(dev); |
| } |
| |
| U_BOOT_DRIVER(rzg2l_pfc_pinctrl) = { |
| .name = "rzg2l-pfc-pinctrl", |
| .id = UCLASS_PINCTRL, |
| .ops = &rzg2l_pinctrl_ops, |
| .probe = rzg2l_pinctrl_probe, |
| }; |
| |
| static const struct rzg2l_pfc_driver_data r9a07g044_driver_data = { |
| .num_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins.common) + |
| ARRAY_SIZE(rzg2l_dedicated_pins.rzg2l_pins), |
| .num_ports = ARRAY_SIZE(r9a07g044_gpio_configs), |
| .gpio_configs = r9a07g044_gpio_configs, |
| }; |
| |
| static const struct udevice_id rzg2l_pfc_ids[] = { |
| { .compatible = "renesas,r9a07g044-pinctrl", .data = (ulong)&r9a07g044_driver_data }, |
| { /* sentinel */ } |
| }; |
| |
| static int rzg2l_pfc_bind(struct udevice *parent) |
| { |
| struct rzg2l_pfc_driver_data *driver_data; |
| struct rzg2l_pfc_data *data; |
| struct driver *drv; |
| unsigned int i; |
| |
| driver_data = |
| (struct rzg2l_pfc_driver_data *)dev_get_driver_data(parent); |
| if (!driver_data) |
| return -EINVAL; |
| data = devm_kmalloc(parent, sizeof(*data), 0); |
| if (!data) |
| return -ENOMEM; |
| |
| data->base = dev_read_addr_ptr(parent); |
| if (!data->base) |
| return -EINVAL; |
| data->num_dedicated_pins = driver_data->num_dedicated_pins; |
| data->num_ports = driver_data->num_ports; |
| data->gpio_configs = driver_data->gpio_configs; |
| |
| data->num_pins = 0; |
| for (i = 0; i < data->num_ports; i++) |
| data->num_pins += RZG2L_GPIO_PORT_GET_PINCNT(data->gpio_configs[i]); |
| dev_dbg(parent, "%u dedicated pins, %u muxed ports, %u muxed pins\n", |
| data->num_dedicated_pins, data->num_ports, data->num_pins); |
| |
| drv = lists_driver_lookup_name("rzg2l-pfc-pinctrl"); |
| if (!drv) |
| return -ENOENT; |
| |
| return device_bind_with_driver_data(parent, drv, parent->name, |
| (ulong)data, dev_ofnode(parent), |
| NULL); |
| } |
| |
| U_BOOT_DRIVER(rzg2l_pfc) = { |
| .name = "rzg2l-pfc", |
| .id = UCLASS_NOP, |
| .of_match = rzg2l_pfc_ids, |
| .bind = rzg2l_pfc_bind, |
| }; |