diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-ocelot.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-ocelot.c | 2143 |
1 files changed, 2143 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c new file mode 100644 index 000000000..c1d58939d --- /dev/null +++ b/drivers/pinctrl/pinctrl-ocelot.c @@ -0,0 +1,2143 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Microsemi SoCs pinctrl driver + * + * Author: <alexandre.belloni@free-electrons.com> + * License: Dual MIT/GPL + * Copyright (c) 2017 Microsemi Corporation + */ + +#include <linux/gpio/driver.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/mfd/ocelot.h> +#include <linux/of_device.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/pinctrl/pinconf-generic.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/reset.h> +#include <linux/slab.h> + +#include "core.h" +#include "pinconf.h" +#include "pinmux.h" + +#define ocelot_clrsetbits(addr, clear, set) \ + writel((readl(addr) & ~(clear)) | (set), (addr)) + +enum { + PINCONF_BIAS, + PINCONF_SCHMITT, + PINCONF_DRIVE_STRENGTH, +}; + +/* GPIO standard registers */ +#define OCELOT_GPIO_OUT_SET 0x0 +#define OCELOT_GPIO_OUT_CLR 0x4 +#define OCELOT_GPIO_OUT 0x8 +#define OCELOT_GPIO_IN 0xc +#define OCELOT_GPIO_OE 0x10 +#define OCELOT_GPIO_INTR 0x14 +#define OCELOT_GPIO_INTR_ENA 0x18 +#define OCELOT_GPIO_INTR_IDENT 0x1c +#define OCELOT_GPIO_ALT0 0x20 +#define OCELOT_GPIO_ALT1 0x24 +#define OCELOT_GPIO_SD_MAP 0x28 + +#define OCELOT_FUNC_PER_PIN 4 + +enum { + FUNC_CAN0_a, + FUNC_CAN0_b, + FUNC_CAN1, + FUNC_CLKMON, + FUNC_NONE, + FUNC_FC0_a, + FUNC_FC0_b, + FUNC_FC0_c, + FUNC_FC1_a, + FUNC_FC1_b, + FUNC_FC1_c, + FUNC_FC2_a, + FUNC_FC2_b, + FUNC_FC3_a, + FUNC_FC3_b, + FUNC_FC3_c, + FUNC_FC4_a, + FUNC_FC4_b, + FUNC_FC4_c, + FUNC_FC_SHRD0, + FUNC_FC_SHRD1, + FUNC_FC_SHRD2, + FUNC_FC_SHRD3, + FUNC_FC_SHRD4, + FUNC_FC_SHRD5, + FUNC_FC_SHRD6, + FUNC_FC_SHRD7, + FUNC_FC_SHRD8, + FUNC_FC_SHRD9, + FUNC_FC_SHRD10, + FUNC_FC_SHRD11, + FUNC_FC_SHRD12, + FUNC_FC_SHRD13, + FUNC_FC_SHRD14, + FUNC_FC_SHRD15, + FUNC_FC_SHRD16, + FUNC_FC_SHRD17, + FUNC_FC_SHRD18, + FUNC_FC_SHRD19, + FUNC_FC_SHRD20, + FUNC_GPIO, + FUNC_IB_TRG_a, + FUNC_IB_TRG_b, + FUNC_IB_TRG_c, + FUNC_IRQ0, + FUNC_IRQ_IN_a, + FUNC_IRQ_IN_b, + FUNC_IRQ_IN_c, + FUNC_IRQ0_IN, + FUNC_IRQ_OUT_a, + FUNC_IRQ_OUT_b, + FUNC_IRQ_OUT_c, + FUNC_IRQ0_OUT, + FUNC_IRQ1, + FUNC_IRQ1_IN, + FUNC_IRQ1_OUT, + FUNC_EXT_IRQ, + FUNC_MIIM, + FUNC_MIIM_a, + FUNC_MIIM_b, + FUNC_MIIM_c, + FUNC_MIIM_Sa, + FUNC_MIIM_Sb, + FUNC_OB_TRG, + FUNC_OB_TRG_a, + FUNC_OB_TRG_b, + FUNC_PHY_LED, + FUNC_PCI_WAKE, + FUNC_MD, + FUNC_PTP0, + FUNC_PTP1, + FUNC_PTP2, + FUNC_PTP3, + FUNC_PTPSYNC_0, + FUNC_PTPSYNC_1, + FUNC_PTPSYNC_2, + FUNC_PTPSYNC_3, + FUNC_PTPSYNC_4, + FUNC_PTPSYNC_5, + FUNC_PTPSYNC_6, + FUNC_PTPSYNC_7, + FUNC_PWM, + FUNC_PWM_a, + FUNC_PWM_b, + FUNC_QSPI1, + FUNC_QSPI2, + FUNC_R, + FUNC_RECO_a, + FUNC_RECO_b, + FUNC_RECO_CLK, + FUNC_SD, + FUNC_SFP, + FUNC_SFP_SD, + FUNC_SG0, + FUNC_SG1, + FUNC_SG2, + FUNC_SGPIO_a, + FUNC_SGPIO_b, + FUNC_SI, + FUNC_SI2, + FUNC_TACHO, + FUNC_TACHO_a, + FUNC_TACHO_b, + FUNC_TWI, + FUNC_TWI2, + FUNC_TWI3, + FUNC_TWI_SCL_M, + FUNC_TWI_SLC_GATE, + FUNC_TWI_SLC_GATE_AD, + FUNC_UART, + FUNC_UART2, + FUNC_UART3, + FUNC_USB_H_a, + FUNC_USB_H_b, + FUNC_USB_H_c, + FUNC_USB_S_a, + FUNC_USB_S_b, + FUNC_USB_S_c, + FUNC_PLL_STAT, + FUNC_EMMC, + FUNC_EMMC_SD, + FUNC_REF_CLK, + FUNC_RCVRD_CLK, + FUNC_MAX +}; + +static const char *const ocelot_function_names[] = { + [FUNC_CAN0_a] = "can0_a", + [FUNC_CAN0_b] = "can0_b", + [FUNC_CAN1] = "can1", + [FUNC_CLKMON] = "clkmon", + [FUNC_NONE] = "none", + [FUNC_FC0_a] = "fc0_a", + [FUNC_FC0_b] = "fc0_b", + [FUNC_FC0_c] = "fc0_c", + [FUNC_FC1_a] = "fc1_a", + [FUNC_FC1_b] = "fc1_b", + [FUNC_FC1_c] = "fc1_c", + [FUNC_FC2_a] = "fc2_a", + [FUNC_FC2_b] = "fc2_b", + [FUNC_FC3_a] = "fc3_a", + [FUNC_FC3_b] = "fc3_b", + [FUNC_FC3_c] = "fc3_c", + [FUNC_FC4_a] = "fc4_a", + [FUNC_FC4_b] = "fc4_b", + [FUNC_FC4_c] = "fc4_c", + [FUNC_FC_SHRD0] = "fc_shrd0", + [FUNC_FC_SHRD1] = "fc_shrd1", + [FUNC_FC_SHRD2] = "fc_shrd2", + [FUNC_FC_SHRD3] = "fc_shrd3", + [FUNC_FC_SHRD4] = "fc_shrd4", + [FUNC_FC_SHRD5] = "fc_shrd5", + [FUNC_FC_SHRD6] = "fc_shrd6", + [FUNC_FC_SHRD7] = "fc_shrd7", + [FUNC_FC_SHRD8] = "fc_shrd8", + [FUNC_FC_SHRD9] = "fc_shrd9", + [FUNC_FC_SHRD10] = "fc_shrd10", + [FUNC_FC_SHRD11] = "fc_shrd11", + [FUNC_FC_SHRD12] = "fc_shrd12", + [FUNC_FC_SHRD13] = "fc_shrd13", + [FUNC_FC_SHRD14] = "fc_shrd14", + [FUNC_FC_SHRD15] = "fc_shrd15", + [FUNC_FC_SHRD16] = "fc_shrd16", + [FUNC_FC_SHRD17] = "fc_shrd17", + [FUNC_FC_SHRD18] = "fc_shrd18", + [FUNC_FC_SHRD19] = "fc_shrd19", + [FUNC_FC_SHRD20] = "fc_shrd20", + [FUNC_GPIO] = "gpio", + [FUNC_IB_TRG_a] = "ib_trig_a", + [FUNC_IB_TRG_b] = "ib_trig_b", + [FUNC_IB_TRG_c] = "ib_trig_c", + [FUNC_IRQ0] = "irq0", + [FUNC_IRQ_IN_a] = "irq_in_a", + [FUNC_IRQ_IN_b] = "irq_in_b", + [FUNC_IRQ_IN_c] = "irq_in_c", + [FUNC_IRQ0_IN] = "irq0_in", + [FUNC_IRQ_OUT_a] = "irq_out_a", + [FUNC_IRQ_OUT_b] = "irq_out_b", + [FUNC_IRQ_OUT_c] = "irq_out_c", + [FUNC_IRQ0_OUT] = "irq0_out", + [FUNC_IRQ1] = "irq1", + [FUNC_IRQ1_IN] = "irq1_in", + [FUNC_IRQ1_OUT] = "irq1_out", + [FUNC_EXT_IRQ] = "ext_irq", + [FUNC_MIIM] = "miim", + [FUNC_MIIM_a] = "miim_a", + [FUNC_MIIM_b] = "miim_b", + [FUNC_MIIM_c] = "miim_c", + [FUNC_MIIM_Sa] = "miim_slave_a", + [FUNC_MIIM_Sb] = "miim_slave_b", + [FUNC_PHY_LED] = "phy_led", + [FUNC_PCI_WAKE] = "pci_wake", + [FUNC_MD] = "md", + [FUNC_OB_TRG] = "ob_trig", + [FUNC_OB_TRG_a] = "ob_trig_a", + [FUNC_OB_TRG_b] = "ob_trig_b", + [FUNC_PTP0] = "ptp0", + [FUNC_PTP1] = "ptp1", + [FUNC_PTP2] = "ptp2", + [FUNC_PTP3] = "ptp3", + [FUNC_PTPSYNC_0] = "ptpsync_0", + [FUNC_PTPSYNC_1] = "ptpsync_1", + [FUNC_PTPSYNC_2] = "ptpsync_2", + [FUNC_PTPSYNC_3] = "ptpsync_3", + [FUNC_PTPSYNC_4] = "ptpsync_4", + [FUNC_PTPSYNC_5] = "ptpsync_5", + [FUNC_PTPSYNC_6] = "ptpsync_6", + [FUNC_PTPSYNC_7] = "ptpsync_7", + [FUNC_PWM] = "pwm", + [FUNC_PWM_a] = "pwm_a", + [FUNC_PWM_b] = "pwm_b", + [FUNC_QSPI1] = "qspi1", + [FUNC_QSPI2] = "qspi2", + [FUNC_R] = "reserved", + [FUNC_RECO_a] = "reco_a", + [FUNC_RECO_b] = "reco_b", + [FUNC_RECO_CLK] = "reco_clk", + [FUNC_SD] = "sd", + [FUNC_SFP] = "sfp", + [FUNC_SFP_SD] = "sfp_sd", + [FUNC_SG0] = "sg0", + [FUNC_SG1] = "sg1", + [FUNC_SG2] = "sg2", + [FUNC_SGPIO_a] = "sgpio_a", + [FUNC_SGPIO_b] = "sgpio_b", + [FUNC_SI] = "si", + [FUNC_SI2] = "si2", + [FUNC_TACHO] = "tacho", + [FUNC_TACHO_a] = "tacho_a", + [FUNC_TACHO_b] = "tacho_b", + [FUNC_TWI] = "twi", + [FUNC_TWI2] = "twi2", + [FUNC_TWI3] = "twi3", + [FUNC_TWI_SCL_M] = "twi_scl_m", + [FUNC_TWI_SLC_GATE] = "twi_slc_gate", + [FUNC_TWI_SLC_GATE_AD] = "twi_slc_gate_ad", + [FUNC_USB_H_a] = "usb_host_a", + [FUNC_USB_H_b] = "usb_host_b", + [FUNC_USB_H_c] = "usb_host_c", + [FUNC_USB_S_a] = "usb_slave_a", + [FUNC_USB_S_b] = "usb_slave_b", + [FUNC_USB_S_c] = "usb_slave_c", + [FUNC_UART] = "uart", + [FUNC_UART2] = "uart2", + [FUNC_UART3] = "uart3", + [FUNC_PLL_STAT] = "pll_stat", + [FUNC_EMMC] = "emmc", + [FUNC_EMMC_SD] = "emmc_sd", + [FUNC_REF_CLK] = "ref_clk", + [FUNC_RCVRD_CLK] = "rcvrd_clk", +}; + +struct ocelot_pmx_func { + const char **groups; + unsigned int ngroups; +}; + +struct ocelot_pin_caps { + unsigned int pin; + unsigned char functions[OCELOT_FUNC_PER_PIN]; + unsigned char a_functions[OCELOT_FUNC_PER_PIN]; /* Additional functions */ +}; + +struct ocelot_pincfg_data { + u8 pd_bit; + u8 pu_bit; + u8 drive_bits; + u8 schmitt_bit; +}; + +struct ocelot_pinctrl { + struct device *dev; + struct pinctrl_dev *pctl; + struct gpio_chip gpio_chip; + struct regmap *map; + struct regmap *pincfg; + struct pinctrl_desc *desc; + const struct ocelot_pincfg_data *pincfg_data; + struct ocelot_pmx_func func[FUNC_MAX]; + u8 stride; + struct workqueue_struct *wq; +}; + +struct ocelot_match_data { + struct pinctrl_desc desc; + struct ocelot_pincfg_data pincfg_data; +}; + +struct ocelot_irq_work { + struct work_struct irq_work; + struct irq_desc *irq_desc; +}; + +#define LUTON_P(p, f0, f1) \ +static struct ocelot_pin_caps luton_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE, \ + }, \ +} + +LUTON_P(0, SG0, NONE); +LUTON_P(1, SG0, NONE); +LUTON_P(2, SG0, NONE); +LUTON_P(3, SG0, NONE); +LUTON_P(4, TACHO, NONE); +LUTON_P(5, TWI, PHY_LED); +LUTON_P(6, TWI, PHY_LED); +LUTON_P(7, NONE, PHY_LED); +LUTON_P(8, EXT_IRQ, PHY_LED); +LUTON_P(9, EXT_IRQ, PHY_LED); +LUTON_P(10, SFP, PHY_LED); +LUTON_P(11, SFP, PHY_LED); +LUTON_P(12, SFP, PHY_LED); +LUTON_P(13, SFP, PHY_LED); +LUTON_P(14, SI, PHY_LED); +LUTON_P(15, SI, PHY_LED); +LUTON_P(16, SI, PHY_LED); +LUTON_P(17, SFP, PHY_LED); +LUTON_P(18, SFP, PHY_LED); +LUTON_P(19, SFP, PHY_LED); +LUTON_P(20, SFP, PHY_LED); +LUTON_P(21, SFP, PHY_LED); +LUTON_P(22, SFP, PHY_LED); +LUTON_P(23, SFP, PHY_LED); +LUTON_P(24, SFP, PHY_LED); +LUTON_P(25, SFP, PHY_LED); +LUTON_P(26, SFP, PHY_LED); +LUTON_P(27, SFP, PHY_LED); +LUTON_P(28, SFP, PHY_LED); +LUTON_P(29, PWM, NONE); +LUTON_P(30, UART, NONE); +LUTON_P(31, UART, NONE); + +#define LUTON_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &luton_pin_##n \ +} + +static const struct pinctrl_pin_desc luton_pins[] = { + LUTON_PIN(0), + LUTON_PIN(1), + LUTON_PIN(2), + LUTON_PIN(3), + LUTON_PIN(4), + LUTON_PIN(5), + LUTON_PIN(6), + LUTON_PIN(7), + LUTON_PIN(8), + LUTON_PIN(9), + LUTON_PIN(10), + LUTON_PIN(11), + LUTON_PIN(12), + LUTON_PIN(13), + LUTON_PIN(14), + LUTON_PIN(15), + LUTON_PIN(16), + LUTON_PIN(17), + LUTON_PIN(18), + LUTON_PIN(19), + LUTON_PIN(20), + LUTON_PIN(21), + LUTON_PIN(22), + LUTON_PIN(23), + LUTON_PIN(24), + LUTON_PIN(25), + LUTON_PIN(26), + LUTON_PIN(27), + LUTON_PIN(28), + LUTON_PIN(29), + LUTON_PIN(30), + LUTON_PIN(31), +}; + +#define SERVAL_P(p, f0, f1, f2) \ +static struct ocelot_pin_caps serval_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2, \ + }, \ +} + +SERVAL_P(0, SG0, NONE, NONE); +SERVAL_P(1, SG0, NONE, NONE); +SERVAL_P(2, SG0, NONE, NONE); +SERVAL_P(3, SG0, NONE, NONE); +SERVAL_P(4, TACHO, NONE, NONE); +SERVAL_P(5, PWM, NONE, NONE); +SERVAL_P(6, TWI, NONE, NONE); +SERVAL_P(7, TWI, NONE, NONE); +SERVAL_P(8, SI, NONE, NONE); +SERVAL_P(9, SI, MD, NONE); +SERVAL_P(10, SI, MD, NONE); +SERVAL_P(11, SFP, MD, TWI_SCL_M); +SERVAL_P(12, SFP, MD, TWI_SCL_M); +SERVAL_P(13, SFP, UART2, TWI_SCL_M); +SERVAL_P(14, SFP, UART2, TWI_SCL_M); +SERVAL_P(15, SFP, PTP0, TWI_SCL_M); +SERVAL_P(16, SFP, PTP0, TWI_SCL_M); +SERVAL_P(17, SFP, PCI_WAKE, TWI_SCL_M); +SERVAL_P(18, SFP, NONE, TWI_SCL_M); +SERVAL_P(19, SFP, NONE, TWI_SCL_M); +SERVAL_P(20, SFP, NONE, TWI_SCL_M); +SERVAL_P(21, SFP, NONE, TWI_SCL_M); +SERVAL_P(22, NONE, NONE, NONE); +SERVAL_P(23, NONE, NONE, NONE); +SERVAL_P(24, NONE, NONE, NONE); +SERVAL_P(25, NONE, NONE, NONE); +SERVAL_P(26, UART, NONE, NONE); +SERVAL_P(27, UART, NONE, NONE); +SERVAL_P(28, IRQ0, NONE, NONE); +SERVAL_P(29, IRQ1, NONE, NONE); +SERVAL_P(30, PTP0, NONE, NONE); +SERVAL_P(31, PTP0, NONE, NONE); + +#define SERVAL_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &serval_pin_##n \ +} + +static const struct pinctrl_pin_desc serval_pins[] = { + SERVAL_PIN(0), + SERVAL_PIN(1), + SERVAL_PIN(2), + SERVAL_PIN(3), + SERVAL_PIN(4), + SERVAL_PIN(5), + SERVAL_PIN(6), + SERVAL_PIN(7), + SERVAL_PIN(8), + SERVAL_PIN(9), + SERVAL_PIN(10), + SERVAL_PIN(11), + SERVAL_PIN(12), + SERVAL_PIN(13), + SERVAL_PIN(14), + SERVAL_PIN(15), + SERVAL_PIN(16), + SERVAL_PIN(17), + SERVAL_PIN(18), + SERVAL_PIN(19), + SERVAL_PIN(20), + SERVAL_PIN(21), + SERVAL_PIN(22), + SERVAL_PIN(23), + SERVAL_PIN(24), + SERVAL_PIN(25), + SERVAL_PIN(26), + SERVAL_PIN(27), + SERVAL_PIN(28), + SERVAL_PIN(29), + SERVAL_PIN(30), + SERVAL_PIN(31), +}; + +#define OCELOT_P(p, f0, f1, f2) \ +static struct ocelot_pin_caps ocelot_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2, \ + }, \ +} + +OCELOT_P(0, SG0, NONE, NONE); +OCELOT_P(1, SG0, NONE, NONE); +OCELOT_P(2, SG0, NONE, NONE); +OCELOT_P(3, SG0, NONE, NONE); +OCELOT_P(4, IRQ0_IN, IRQ0_OUT, TWI_SCL_M); +OCELOT_P(5, IRQ1_IN, IRQ1_OUT, PCI_WAKE); +OCELOT_P(6, UART, TWI_SCL_M, NONE); +OCELOT_P(7, UART, TWI_SCL_M, NONE); +OCELOT_P(8, SI, TWI_SCL_M, IRQ0_OUT); +OCELOT_P(9, SI, TWI_SCL_M, IRQ1_OUT); +OCELOT_P(10, PTP2, TWI_SCL_M, SFP); +OCELOT_P(11, PTP3, TWI_SCL_M, SFP); +OCELOT_P(12, UART2, TWI_SCL_M, SFP); +OCELOT_P(13, UART2, TWI_SCL_M, SFP); +OCELOT_P(14, MIIM, TWI_SCL_M, SFP); +OCELOT_P(15, MIIM, TWI_SCL_M, SFP); +OCELOT_P(16, TWI, NONE, SI); +OCELOT_P(17, TWI, TWI_SCL_M, SI); +OCELOT_P(18, PTP0, TWI_SCL_M, NONE); +OCELOT_P(19, PTP1, TWI_SCL_M, NONE); +OCELOT_P(20, RECO_CLK, TACHO, TWI_SCL_M); +OCELOT_P(21, RECO_CLK, PWM, TWI_SCL_M); + +#define OCELOT_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &ocelot_pin_##n \ +} + +static const struct pinctrl_pin_desc ocelot_pins[] = { + OCELOT_PIN(0), + OCELOT_PIN(1), + OCELOT_PIN(2), + OCELOT_PIN(3), + OCELOT_PIN(4), + OCELOT_PIN(5), + OCELOT_PIN(6), + OCELOT_PIN(7), + OCELOT_PIN(8), + OCELOT_PIN(9), + OCELOT_PIN(10), + OCELOT_PIN(11), + OCELOT_PIN(12), + OCELOT_PIN(13), + OCELOT_PIN(14), + OCELOT_PIN(15), + OCELOT_PIN(16), + OCELOT_PIN(17), + OCELOT_PIN(18), + OCELOT_PIN(19), + OCELOT_PIN(20), + OCELOT_PIN(21), +}; + +#define JAGUAR2_P(p, f0, f1) \ +static struct ocelot_pin_caps jaguar2_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE \ + }, \ +} + +JAGUAR2_P(0, SG0, NONE); +JAGUAR2_P(1, SG0, NONE); +JAGUAR2_P(2, SG0, NONE); +JAGUAR2_P(3, SG0, NONE); +JAGUAR2_P(4, SG1, NONE); +JAGUAR2_P(5, SG1, NONE); +JAGUAR2_P(6, IRQ0_IN, IRQ0_OUT); +JAGUAR2_P(7, IRQ1_IN, IRQ1_OUT); +JAGUAR2_P(8, PTP0, NONE); +JAGUAR2_P(9, PTP1, NONE); +JAGUAR2_P(10, UART, NONE); +JAGUAR2_P(11, UART, NONE); +JAGUAR2_P(12, SG1, NONE); +JAGUAR2_P(13, SG1, NONE); +JAGUAR2_P(14, TWI, TWI_SCL_M); +JAGUAR2_P(15, TWI, NONE); +JAGUAR2_P(16, SI, TWI_SCL_M); +JAGUAR2_P(17, SI, TWI_SCL_M); +JAGUAR2_P(18, SI, TWI_SCL_M); +JAGUAR2_P(19, PCI_WAKE, NONE); +JAGUAR2_P(20, IRQ0_OUT, TWI_SCL_M); +JAGUAR2_P(21, IRQ1_OUT, TWI_SCL_M); +JAGUAR2_P(22, TACHO, NONE); +JAGUAR2_P(23, PWM, NONE); +JAGUAR2_P(24, UART2, NONE); +JAGUAR2_P(25, UART2, SI); +JAGUAR2_P(26, PTP2, SI); +JAGUAR2_P(27, PTP3, SI); +JAGUAR2_P(28, TWI2, SI); +JAGUAR2_P(29, TWI2, SI); +JAGUAR2_P(30, SG2, SI); +JAGUAR2_P(31, SG2, SI); +JAGUAR2_P(32, SG2, SI); +JAGUAR2_P(33, SG2, SI); +JAGUAR2_P(34, NONE, TWI_SCL_M); +JAGUAR2_P(35, NONE, TWI_SCL_M); +JAGUAR2_P(36, NONE, TWI_SCL_M); +JAGUAR2_P(37, NONE, TWI_SCL_M); +JAGUAR2_P(38, NONE, TWI_SCL_M); +JAGUAR2_P(39, NONE, TWI_SCL_M); +JAGUAR2_P(40, NONE, TWI_SCL_M); +JAGUAR2_P(41, NONE, TWI_SCL_M); +JAGUAR2_P(42, NONE, TWI_SCL_M); +JAGUAR2_P(43, NONE, TWI_SCL_M); +JAGUAR2_P(44, NONE, SFP); +JAGUAR2_P(45, NONE, SFP); +JAGUAR2_P(46, NONE, SFP); +JAGUAR2_P(47, NONE, SFP); +JAGUAR2_P(48, SFP, NONE); +JAGUAR2_P(49, SFP, SI); +JAGUAR2_P(50, SFP, SI); +JAGUAR2_P(51, SFP, SI); +JAGUAR2_P(52, SFP, NONE); +JAGUAR2_P(53, SFP, NONE); +JAGUAR2_P(54, SFP, NONE); +JAGUAR2_P(55, SFP, NONE); +JAGUAR2_P(56, MIIM, SFP); +JAGUAR2_P(57, MIIM, SFP); +JAGUAR2_P(58, MIIM, SFP); +JAGUAR2_P(59, MIIM, SFP); +JAGUAR2_P(60, NONE, NONE); +JAGUAR2_P(61, NONE, NONE); +JAGUAR2_P(62, NONE, NONE); +JAGUAR2_P(63, NONE, NONE); + +#define JAGUAR2_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &jaguar2_pin_##n \ +} + +static const struct pinctrl_pin_desc jaguar2_pins[] = { + JAGUAR2_PIN(0), + JAGUAR2_PIN(1), + JAGUAR2_PIN(2), + JAGUAR2_PIN(3), + JAGUAR2_PIN(4), + JAGUAR2_PIN(5), + JAGUAR2_PIN(6), + JAGUAR2_PIN(7), + JAGUAR2_PIN(8), + JAGUAR2_PIN(9), + JAGUAR2_PIN(10), + JAGUAR2_PIN(11), + JAGUAR2_PIN(12), + JAGUAR2_PIN(13), + JAGUAR2_PIN(14), + JAGUAR2_PIN(15), + JAGUAR2_PIN(16), + JAGUAR2_PIN(17), + JAGUAR2_PIN(18), + JAGUAR2_PIN(19), + JAGUAR2_PIN(20), + JAGUAR2_PIN(21), + JAGUAR2_PIN(22), + JAGUAR2_PIN(23), + JAGUAR2_PIN(24), + JAGUAR2_PIN(25), + JAGUAR2_PIN(26), + JAGUAR2_PIN(27), + JAGUAR2_PIN(28), + JAGUAR2_PIN(29), + JAGUAR2_PIN(30), + JAGUAR2_PIN(31), + JAGUAR2_PIN(32), + JAGUAR2_PIN(33), + JAGUAR2_PIN(34), + JAGUAR2_PIN(35), + JAGUAR2_PIN(36), + JAGUAR2_PIN(37), + JAGUAR2_PIN(38), + JAGUAR2_PIN(39), + JAGUAR2_PIN(40), + JAGUAR2_PIN(41), + JAGUAR2_PIN(42), + JAGUAR2_PIN(43), + JAGUAR2_PIN(44), + JAGUAR2_PIN(45), + JAGUAR2_PIN(46), + JAGUAR2_PIN(47), + JAGUAR2_PIN(48), + JAGUAR2_PIN(49), + JAGUAR2_PIN(50), + JAGUAR2_PIN(51), + JAGUAR2_PIN(52), + JAGUAR2_PIN(53), + JAGUAR2_PIN(54), + JAGUAR2_PIN(55), + JAGUAR2_PIN(56), + JAGUAR2_PIN(57), + JAGUAR2_PIN(58), + JAGUAR2_PIN(59), + JAGUAR2_PIN(60), + JAGUAR2_PIN(61), + JAGUAR2_PIN(62), + JAGUAR2_PIN(63), +}; + +#define SERVALT_P(p, f0, f1, f2) \ +static struct ocelot_pin_caps servalt_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2 \ + }, \ +} + +SERVALT_P(0, SG0, NONE, NONE); +SERVALT_P(1, SG0, NONE, NONE); +SERVALT_P(2, SG0, NONE, NONE); +SERVALT_P(3, SG0, NONE, NONE); +SERVALT_P(4, IRQ0_IN, IRQ0_OUT, TWI_SCL_M); +SERVALT_P(5, IRQ1_IN, IRQ1_OUT, TWI_SCL_M); +SERVALT_P(6, UART, NONE, NONE); +SERVALT_P(7, UART, NONE, NONE); +SERVALT_P(8, SI, SFP, TWI_SCL_M); +SERVALT_P(9, PCI_WAKE, SFP, SI); +SERVALT_P(10, PTP0, SFP, TWI_SCL_M); +SERVALT_P(11, PTP1, SFP, TWI_SCL_M); +SERVALT_P(12, REF_CLK, SFP, TWI_SCL_M); +SERVALT_P(13, REF_CLK, SFP, TWI_SCL_M); +SERVALT_P(14, REF_CLK, IRQ0_OUT, SI); +SERVALT_P(15, REF_CLK, IRQ1_OUT, SI); +SERVALT_P(16, TACHO, SFP, SI); +SERVALT_P(17, PWM, NONE, TWI_SCL_M); +SERVALT_P(18, PTP2, SFP, SI); +SERVALT_P(19, PTP3, SFP, SI); +SERVALT_P(20, UART2, SFP, SI); +SERVALT_P(21, UART2, NONE, NONE); +SERVALT_P(22, MIIM, SFP, TWI2); +SERVALT_P(23, MIIM, SFP, TWI2); +SERVALT_P(24, TWI, NONE, NONE); +SERVALT_P(25, TWI, SFP, TWI_SCL_M); +SERVALT_P(26, TWI_SCL_M, SFP, SI); +SERVALT_P(27, TWI_SCL_M, SFP, SI); +SERVALT_P(28, TWI_SCL_M, SFP, SI); +SERVALT_P(29, TWI_SCL_M, NONE, NONE); +SERVALT_P(30, TWI_SCL_M, NONE, NONE); +SERVALT_P(31, TWI_SCL_M, NONE, NONE); +SERVALT_P(32, TWI_SCL_M, NONE, NONE); +SERVALT_P(33, RCVRD_CLK, NONE, NONE); +SERVALT_P(34, RCVRD_CLK, NONE, NONE); +SERVALT_P(35, RCVRD_CLK, NONE, NONE); +SERVALT_P(36, RCVRD_CLK, NONE, NONE); + +#define SERVALT_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &servalt_pin_##n \ +} + +static const struct pinctrl_pin_desc servalt_pins[] = { + SERVALT_PIN(0), + SERVALT_PIN(1), + SERVALT_PIN(2), + SERVALT_PIN(3), + SERVALT_PIN(4), + SERVALT_PIN(5), + SERVALT_PIN(6), + SERVALT_PIN(7), + SERVALT_PIN(8), + SERVALT_PIN(9), + SERVALT_PIN(10), + SERVALT_PIN(11), + SERVALT_PIN(12), + SERVALT_PIN(13), + SERVALT_PIN(14), + SERVALT_PIN(15), + SERVALT_PIN(16), + SERVALT_PIN(17), + SERVALT_PIN(18), + SERVALT_PIN(19), + SERVALT_PIN(20), + SERVALT_PIN(21), + SERVALT_PIN(22), + SERVALT_PIN(23), + SERVALT_PIN(24), + SERVALT_PIN(25), + SERVALT_PIN(26), + SERVALT_PIN(27), + SERVALT_PIN(28), + SERVALT_PIN(29), + SERVALT_PIN(30), + SERVALT_PIN(31), + SERVALT_PIN(32), + SERVALT_PIN(33), + SERVALT_PIN(34), + SERVALT_PIN(35), + SERVALT_PIN(36), +}; + +#define SPARX5_P(p, f0, f1, f2) \ +static struct ocelot_pin_caps sparx5_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2 \ + }, \ +} + +SPARX5_P(0, SG0, PLL_STAT, NONE); +SPARX5_P(1, SG0, NONE, NONE); +SPARX5_P(2, SG0, NONE, NONE); +SPARX5_P(3, SG0, NONE, NONE); +SPARX5_P(4, SG1, NONE, NONE); +SPARX5_P(5, SG1, NONE, NONE); +SPARX5_P(6, IRQ0_IN, IRQ0_OUT, SFP); +SPARX5_P(7, IRQ1_IN, IRQ1_OUT, SFP); +SPARX5_P(8, PTP0, NONE, SFP); +SPARX5_P(9, PTP1, SFP, TWI_SCL_M); +SPARX5_P(10, UART, NONE, NONE); +SPARX5_P(11, UART, NONE, NONE); +SPARX5_P(12, SG1, NONE, NONE); +SPARX5_P(13, SG1, NONE, NONE); +SPARX5_P(14, TWI, TWI_SCL_M, NONE); +SPARX5_P(15, TWI, NONE, NONE); +SPARX5_P(16, SI, TWI_SCL_M, SFP); +SPARX5_P(17, SI, TWI_SCL_M, SFP); +SPARX5_P(18, SI, TWI_SCL_M, SFP); +SPARX5_P(19, PCI_WAKE, TWI_SCL_M, SFP); +SPARX5_P(20, IRQ0_OUT, TWI_SCL_M, SFP); +SPARX5_P(21, IRQ1_OUT, TACHO, SFP); +SPARX5_P(22, TACHO, IRQ0_OUT, TWI_SCL_M); +SPARX5_P(23, PWM, UART3, TWI_SCL_M); +SPARX5_P(24, PTP2, UART3, TWI_SCL_M); +SPARX5_P(25, PTP3, SI, TWI_SCL_M); +SPARX5_P(26, UART2, SI, TWI_SCL_M); +SPARX5_P(27, UART2, SI, TWI_SCL_M); +SPARX5_P(28, TWI2, SI, SFP); +SPARX5_P(29, TWI2, SI, SFP); +SPARX5_P(30, SG2, SI, PWM); +SPARX5_P(31, SG2, SI, TWI_SCL_M); +SPARX5_P(32, SG2, SI, TWI_SCL_M); +SPARX5_P(33, SG2, SI, SFP); +SPARX5_P(34, NONE, TWI_SCL_M, EMMC); +SPARX5_P(35, SFP, TWI_SCL_M, EMMC); +SPARX5_P(36, SFP, TWI_SCL_M, EMMC); +SPARX5_P(37, SFP, NONE, EMMC); +SPARX5_P(38, NONE, TWI_SCL_M, EMMC); +SPARX5_P(39, SI2, TWI_SCL_M, EMMC); +SPARX5_P(40, SI2, TWI_SCL_M, EMMC); +SPARX5_P(41, SI2, TWI_SCL_M, EMMC); +SPARX5_P(42, SI2, TWI_SCL_M, EMMC); +SPARX5_P(43, SI2, TWI_SCL_M, EMMC); +SPARX5_P(44, SI, SFP, EMMC); +SPARX5_P(45, SI, SFP, EMMC); +SPARX5_P(46, NONE, SFP, EMMC); +SPARX5_P(47, NONE, SFP, EMMC); +SPARX5_P(48, TWI3, SI, SFP); +SPARX5_P(49, TWI3, NONE, SFP); +SPARX5_P(50, SFP, NONE, TWI_SCL_M); +SPARX5_P(51, SFP, SI, TWI_SCL_M); +SPARX5_P(52, SFP, MIIM, TWI_SCL_M); +SPARX5_P(53, SFP, MIIM, TWI_SCL_M); +SPARX5_P(54, SFP, PTP2, TWI_SCL_M); +SPARX5_P(55, SFP, PTP3, PCI_WAKE); +SPARX5_P(56, MIIM, SFP, TWI_SCL_M); +SPARX5_P(57, MIIM, SFP, TWI_SCL_M); +SPARX5_P(58, MIIM, SFP, TWI_SCL_M); +SPARX5_P(59, MIIM, SFP, NONE); +SPARX5_P(60, RECO_CLK, NONE, NONE); +SPARX5_P(61, RECO_CLK, NONE, NONE); +SPARX5_P(62, RECO_CLK, PLL_STAT, NONE); +SPARX5_P(63, RECO_CLK, NONE, NONE); + +#define SPARX5_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &sparx5_pin_##n \ +} + +static const struct pinctrl_pin_desc sparx5_pins[] = { + SPARX5_PIN(0), + SPARX5_PIN(1), + SPARX5_PIN(2), + SPARX5_PIN(3), + SPARX5_PIN(4), + SPARX5_PIN(5), + SPARX5_PIN(6), + SPARX5_PIN(7), + SPARX5_PIN(8), + SPARX5_PIN(9), + SPARX5_PIN(10), + SPARX5_PIN(11), + SPARX5_PIN(12), + SPARX5_PIN(13), + SPARX5_PIN(14), + SPARX5_PIN(15), + SPARX5_PIN(16), + SPARX5_PIN(17), + SPARX5_PIN(18), + SPARX5_PIN(19), + SPARX5_PIN(20), + SPARX5_PIN(21), + SPARX5_PIN(22), + SPARX5_PIN(23), + SPARX5_PIN(24), + SPARX5_PIN(25), + SPARX5_PIN(26), + SPARX5_PIN(27), + SPARX5_PIN(28), + SPARX5_PIN(29), + SPARX5_PIN(30), + SPARX5_PIN(31), + SPARX5_PIN(32), + SPARX5_PIN(33), + SPARX5_PIN(34), + SPARX5_PIN(35), + SPARX5_PIN(36), + SPARX5_PIN(37), + SPARX5_PIN(38), + SPARX5_PIN(39), + SPARX5_PIN(40), + SPARX5_PIN(41), + SPARX5_PIN(42), + SPARX5_PIN(43), + SPARX5_PIN(44), + SPARX5_PIN(45), + SPARX5_PIN(46), + SPARX5_PIN(47), + SPARX5_PIN(48), + SPARX5_PIN(49), + SPARX5_PIN(50), + SPARX5_PIN(51), + SPARX5_PIN(52), + SPARX5_PIN(53), + SPARX5_PIN(54), + SPARX5_PIN(55), + SPARX5_PIN(56), + SPARX5_PIN(57), + SPARX5_PIN(58), + SPARX5_PIN(59), + SPARX5_PIN(60), + SPARX5_PIN(61), + SPARX5_PIN(62), + SPARX5_PIN(63), +}; + +#define LAN966X_P(p, f0, f1, f2, f3, f4, f5, f6, f7) \ +static struct ocelot_pin_caps lan966x_pin_##p = { \ + .pin = p, \ + .functions = { \ + FUNC_##f0, FUNC_##f1, FUNC_##f2, \ + FUNC_##f3 \ + }, \ + .a_functions = { \ + FUNC_##f4, FUNC_##f5, FUNC_##f6, \ + FUNC_##f7 \ + }, \ +} + +/* Pinmuxing table taken from data sheet */ +/* Pin FUNC0 FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 */ +LAN966X_P(0, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(1, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(2, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(3, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(4, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(5, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(6, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(7, GPIO, NONE, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(8, GPIO, FC0_a, USB_H_b, NONE, USB_S_b, NONE, NONE, R); +LAN966X_P(9, GPIO, FC0_a, USB_H_b, NONE, NONE, NONE, NONE, R); +LAN966X_P(10, GPIO, FC0_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(11, GPIO, FC1_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(12, GPIO, FC1_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(13, GPIO, FC1_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(14, GPIO, FC2_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(15, GPIO, FC2_a, NONE, NONE, NONE, NONE, NONE, R); +LAN966X_P(16, GPIO, FC2_a, IB_TRG_a, NONE, OB_TRG_a, IRQ_IN_c, IRQ_OUT_c, R); +LAN966X_P(17, GPIO, FC3_a, IB_TRG_a, NONE, OB_TRG_a, IRQ_IN_c, IRQ_OUT_c, R); +LAN966X_P(18, GPIO, FC3_a, IB_TRG_a, NONE, OB_TRG_a, IRQ_IN_c, IRQ_OUT_c, R); +LAN966X_P(19, GPIO, FC3_a, IB_TRG_a, NONE, OB_TRG_a, IRQ_IN_c, IRQ_OUT_c, R); +LAN966X_P(20, GPIO, FC4_a, IB_TRG_a, NONE, OB_TRG_a, IRQ_IN_c, NONE, R); +LAN966X_P(21, GPIO, FC4_a, NONE, NONE, OB_TRG_a, NONE, NONE, R); +LAN966X_P(22, GPIO, FC4_a, NONE, NONE, OB_TRG_a, NONE, NONE, R); +LAN966X_P(23, GPIO, NONE, NONE, NONE, OB_TRG_a, NONE, NONE, R); +LAN966X_P(24, GPIO, FC0_b, IB_TRG_a, USB_H_c, OB_TRG_a, IRQ_IN_c, TACHO_a, R); +LAN966X_P(25, GPIO, FC0_b, IB_TRG_a, USB_H_c, OB_TRG_a, IRQ_OUT_c, SFP_SD, R); +LAN966X_P(26, GPIO, FC0_b, IB_TRG_a, USB_S_c, OB_TRG_a, CAN0_a, SFP_SD, R); +LAN966X_P(27, GPIO, NONE, NONE, NONE, OB_TRG_a, CAN0_a, PWM_a, R); +LAN966X_P(28, GPIO, MIIM_a, NONE, NONE, OB_TRG_a, IRQ_OUT_c, SFP_SD, R); +LAN966X_P(29, GPIO, MIIM_a, NONE, NONE, OB_TRG_a, NONE, NONE, R); +LAN966X_P(30, GPIO, FC3_c, CAN1, CLKMON, OB_TRG, RECO_b, NONE, R); +LAN966X_P(31, GPIO, FC3_c, CAN1, CLKMON, OB_TRG, RECO_b, NONE, R); +LAN966X_P(32, GPIO, FC3_c, NONE, SGPIO_a, NONE, MIIM_Sa, NONE, R); +LAN966X_P(33, GPIO, FC1_b, NONE, SGPIO_a, NONE, MIIM_Sa, MIIM_b, R); +LAN966X_P(34, GPIO, FC1_b, NONE, SGPIO_a, NONE, MIIM_Sa, MIIM_b, R); +LAN966X_P(35, GPIO, FC1_b, PTPSYNC_0, SGPIO_a, CAN0_b, NONE, NONE, R); +LAN966X_P(36, GPIO, NONE, PTPSYNC_1, NONE, CAN0_b, NONE, NONE, R); +LAN966X_P(37, GPIO, FC_SHRD0, PTPSYNC_2, TWI_SLC_GATE_AD, NONE, NONE, NONE, R); +LAN966X_P(38, GPIO, NONE, PTPSYNC_3, NONE, NONE, NONE, NONE, R); +LAN966X_P(39, GPIO, NONE, PTPSYNC_4, NONE, NONE, NONE, NONE, R); +LAN966X_P(40, GPIO, FC_SHRD1, PTPSYNC_5, NONE, NONE, NONE, NONE, R); +LAN966X_P(41, GPIO, FC_SHRD2, PTPSYNC_6, TWI_SLC_GATE_AD, NONE, NONE, NONE, R); +LAN966X_P(42, GPIO, FC_SHRD3, PTPSYNC_7, TWI_SLC_GATE_AD, NONE, NONE, NONE, R); +LAN966X_P(43, GPIO, FC2_b, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, RECO_a, IRQ_IN_a, R); +LAN966X_P(44, GPIO, FC2_b, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, RECO_a, IRQ_IN_a, R); +LAN966X_P(45, GPIO, FC2_b, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, NONE, IRQ_IN_a, R); +LAN966X_P(46, GPIO, FC1_c, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, FC_SHRD4, IRQ_IN_a, R); +LAN966X_P(47, GPIO, FC1_c, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, FC_SHRD5, IRQ_IN_a, R); +LAN966X_P(48, GPIO, FC1_c, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, FC_SHRD6, IRQ_IN_a, R); +LAN966X_P(49, GPIO, FC_SHRD7, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, TWI_SLC_GATE, IRQ_IN_a, R); +LAN966X_P(50, GPIO, FC_SHRD16, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, TWI_SLC_GATE, NONE, R); +LAN966X_P(51, GPIO, FC3_b, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, PWM_b, IRQ_IN_b, R); +LAN966X_P(52, GPIO, FC3_b, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, TACHO_b, IRQ_IN_b, R); +LAN966X_P(53, GPIO, FC3_b, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, NONE, IRQ_IN_b, R); +LAN966X_P(54, GPIO, FC_SHRD8, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, TWI_SLC_GATE, IRQ_IN_b, R); +LAN966X_P(55, GPIO, FC_SHRD9, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, TWI_SLC_GATE, IRQ_IN_b, R); +LAN966X_P(56, GPIO, FC4_b, OB_TRG_b, IB_TRG_c, IRQ_OUT_b, FC_SHRD10, IRQ_IN_b, R); +LAN966X_P(57, GPIO, FC4_b, TWI_SLC_GATE, IB_TRG_c, IRQ_OUT_b, FC_SHRD11, IRQ_IN_b, R); +LAN966X_P(58, GPIO, FC4_b, TWI_SLC_GATE, IB_TRG_c, IRQ_OUT_b, FC_SHRD12, IRQ_IN_b, R); +LAN966X_P(59, GPIO, QSPI1, MIIM_c, NONE, NONE, MIIM_Sb, NONE, R); +LAN966X_P(60, GPIO, QSPI1, MIIM_c, NONE, NONE, MIIM_Sb, NONE, R); +LAN966X_P(61, GPIO, QSPI1, NONE, SGPIO_b, FC0_c, MIIM_Sb, NONE, R); +LAN966X_P(62, GPIO, QSPI1, FC_SHRD13, SGPIO_b, FC0_c, TWI_SLC_GATE, SFP_SD, R); +LAN966X_P(63, GPIO, QSPI1, FC_SHRD14, SGPIO_b, FC0_c, TWI_SLC_GATE, SFP_SD, R); +LAN966X_P(64, GPIO, QSPI1, FC4_c, SGPIO_b, FC_SHRD15, TWI_SLC_GATE, SFP_SD, R); +LAN966X_P(65, GPIO, USB_H_a, FC4_c, NONE, IRQ_OUT_c, TWI_SLC_GATE_AD, NONE, R); +LAN966X_P(66, GPIO, USB_H_a, FC4_c, USB_S_a, IRQ_OUT_c, IRQ_IN_c, NONE, R); +LAN966X_P(67, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(68, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(69, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(70, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(71, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(72, GPIO, EMMC_SD, NONE, QSPI2, NONE, NONE, NONE, R); +LAN966X_P(73, GPIO, EMMC, NONE, NONE, SD, NONE, NONE, R); +LAN966X_P(74, GPIO, EMMC, NONE, FC_SHRD17, SD, TWI_SLC_GATE, NONE, R); +LAN966X_P(75, GPIO, EMMC, NONE, FC_SHRD18, SD, TWI_SLC_GATE, NONE, R); +LAN966X_P(76, GPIO, EMMC, NONE, FC_SHRD19, SD, TWI_SLC_GATE, NONE, R); +LAN966X_P(77, GPIO, EMMC_SD, NONE, FC_SHRD20, NONE, TWI_SLC_GATE, NONE, R); + +#define LAN966X_PIN(n) { \ + .number = n, \ + .name = "GPIO_"#n, \ + .drv_data = &lan966x_pin_##n \ +} + +static const struct pinctrl_pin_desc lan966x_pins[] = { + LAN966X_PIN(0), + LAN966X_PIN(1), + LAN966X_PIN(2), + LAN966X_PIN(3), + LAN966X_PIN(4), + LAN966X_PIN(5), + LAN966X_PIN(6), + LAN966X_PIN(7), + LAN966X_PIN(8), + LAN966X_PIN(9), + LAN966X_PIN(10), + LAN966X_PIN(11), + LAN966X_PIN(12), + LAN966X_PIN(13), + LAN966X_PIN(14), + LAN966X_PIN(15), + LAN966X_PIN(16), + LAN966X_PIN(17), + LAN966X_PIN(18), + LAN966X_PIN(19), + LAN966X_PIN(20), + LAN966X_PIN(21), + LAN966X_PIN(22), + LAN966X_PIN(23), + LAN966X_PIN(24), + LAN966X_PIN(25), + LAN966X_PIN(26), + LAN966X_PIN(27), + LAN966X_PIN(28), + LAN966X_PIN(29), + LAN966X_PIN(30), + LAN966X_PIN(31), + LAN966X_PIN(32), + LAN966X_PIN(33), + LAN966X_PIN(34), + LAN966X_PIN(35), + LAN966X_PIN(36), + LAN966X_PIN(37), + LAN966X_PIN(38), + LAN966X_PIN(39), + LAN966X_PIN(40), + LAN966X_PIN(41), + LAN966X_PIN(42), + LAN966X_PIN(43), + LAN966X_PIN(44), + LAN966X_PIN(45), + LAN966X_PIN(46), + LAN966X_PIN(47), + LAN966X_PIN(48), + LAN966X_PIN(49), + LAN966X_PIN(50), + LAN966X_PIN(51), + LAN966X_PIN(52), + LAN966X_PIN(53), + LAN966X_PIN(54), + LAN966X_PIN(55), + LAN966X_PIN(56), + LAN966X_PIN(57), + LAN966X_PIN(58), + LAN966X_PIN(59), + LAN966X_PIN(60), + LAN966X_PIN(61), + LAN966X_PIN(62), + LAN966X_PIN(63), + LAN966X_PIN(64), + LAN966X_PIN(65), + LAN966X_PIN(66), + LAN966X_PIN(67), + LAN966X_PIN(68), + LAN966X_PIN(69), + LAN966X_PIN(70), + LAN966X_PIN(71), + LAN966X_PIN(72), + LAN966X_PIN(73), + LAN966X_PIN(74), + LAN966X_PIN(75), + LAN966X_PIN(76), + LAN966X_PIN(77), +}; + +static int ocelot_get_functions_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(ocelot_function_names); +} + +static const char *ocelot_get_function_name(struct pinctrl_dev *pctldev, + unsigned int function) +{ + return ocelot_function_names[function]; +} + +static int ocelot_get_function_groups(struct pinctrl_dev *pctldev, + unsigned int function, + const char *const **groups, + unsigned *const num_groups) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + + *groups = info->func[function].groups; + *num_groups = info->func[function].ngroups; + + return 0; +} + +static int ocelot_pin_function_idx(struct ocelot_pinctrl *info, + unsigned int pin, unsigned int function) +{ + struct ocelot_pin_caps *p = info->desc->pins[pin].drv_data; + int i; + + for (i = 0; i < OCELOT_FUNC_PER_PIN; i++) { + if (function == p->functions[i]) + return i; + + if (function == p->a_functions[i]) + return i + OCELOT_FUNC_PER_PIN; + } + + return -1; +} + +#define REG_ALT(msb, info, p) (OCELOT_GPIO_ALT0 * (info)->stride + 4 * ((msb) + ((info)->stride * ((p) / 32)))) + +static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev, + unsigned int selector, unsigned int group) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + struct ocelot_pin_caps *pin = info->desc->pins[group].drv_data; + unsigned int p = pin->pin % 32; + int f; + + f = ocelot_pin_function_idx(info, group, selector); + if (f < 0) + return -EINVAL; + + /* + * f is encoded on two bits. + * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of + * ALT[1] + * This is racy because both registers can't be updated at the same time + * but it doesn't matter much for now. + * Note: ALT0/ALT1 are organized specially for 64 gpio targets + */ + regmap_update_bits(info->map, REG_ALT(0, info, pin->pin), + BIT(p), f << p); + regmap_update_bits(info->map, REG_ALT(1, info, pin->pin), + BIT(p), (f >> 1) << p); + + return 0; +} + +static int lan966x_pinmux_set_mux(struct pinctrl_dev *pctldev, + unsigned int selector, unsigned int group) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + struct ocelot_pin_caps *pin = info->desc->pins[group].drv_data; + unsigned int p = pin->pin % 32; + int f; + + f = ocelot_pin_function_idx(info, group, selector); + if (f < 0) + return -EINVAL; + + /* + * f is encoded on three bits. + * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of + * ALT[1], bit 2 of f goes in BIT(pin) of ALT[2] + * This is racy because three registers can't be updated at the same time + * but it doesn't matter much for now. + * Note: ALT0/ALT1/ALT2 are organized specially for 78 gpio targets + */ + regmap_update_bits(info->map, REG_ALT(0, info, pin->pin), + BIT(p), f << p); + regmap_update_bits(info->map, REG_ALT(1, info, pin->pin), + BIT(p), (f >> 1) << p); + regmap_update_bits(info->map, REG_ALT(2, info, pin->pin), + BIT(p), (f >> 2) << p); + + return 0; +} + +#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32))) + +static int ocelot_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned int pin, bool input) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + unsigned int p = pin % 32; + + regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, pin), BIT(p), + input ? 0 : BIT(p)); + + return 0; +} + +static int ocelot_gpio_request_enable(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned int offset) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + unsigned int p = offset % 32; + + regmap_update_bits(info->map, REG_ALT(0, info, offset), + BIT(p), 0); + regmap_update_bits(info->map, REG_ALT(1, info, offset), + BIT(p), 0); + + return 0; +} + +static int lan966x_gpio_request_enable(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned int offset) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + unsigned int p = offset % 32; + + regmap_update_bits(info->map, REG_ALT(0, info, offset), + BIT(p), 0); + regmap_update_bits(info->map, REG_ALT(1, info, offset), + BIT(p), 0); + regmap_update_bits(info->map, REG_ALT(2, info, offset), + BIT(p), 0); + + return 0; +} + +static const struct pinmux_ops ocelot_pmx_ops = { + .get_functions_count = ocelot_get_functions_count, + .get_function_name = ocelot_get_function_name, + .get_function_groups = ocelot_get_function_groups, + .set_mux = ocelot_pinmux_set_mux, + .gpio_set_direction = ocelot_gpio_set_direction, + .gpio_request_enable = ocelot_gpio_request_enable, +}; + +static const struct pinmux_ops lan966x_pmx_ops = { + .get_functions_count = ocelot_get_functions_count, + .get_function_name = ocelot_get_function_name, + .get_function_groups = ocelot_get_function_groups, + .set_mux = lan966x_pinmux_set_mux, + .gpio_set_direction = ocelot_gpio_set_direction, + .gpio_request_enable = lan966x_gpio_request_enable, +}; + +static int ocelot_pctl_get_groups_count(struct pinctrl_dev *pctldev) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + + return info->desc->npins; +} + +static const char *ocelot_pctl_get_group_name(struct pinctrl_dev *pctldev, + unsigned int group) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + + return info->desc->pins[group].name; +} + +static int ocelot_pctl_get_group_pins(struct pinctrl_dev *pctldev, + unsigned int group, + const unsigned int **pins, + unsigned int *num_pins) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + + *pins = &info->desc->pins[group].number; + *num_pins = 1; + + return 0; +} + +static int ocelot_hw_get_value(struct ocelot_pinctrl *info, + unsigned int pin, + unsigned int reg, + int *val) +{ + int ret = -EOPNOTSUPP; + + if (info->pincfg) { + const struct ocelot_pincfg_data *opd = info->pincfg_data; + u32 regcfg; + + ret = regmap_read(info->pincfg, + pin * regmap_get_reg_stride(info->pincfg), + ®cfg); + if (ret) + return ret; + + ret = 0; + switch (reg) { + case PINCONF_BIAS: + *val = regcfg & (opd->pd_bit | opd->pu_bit); + break; + + case PINCONF_SCHMITT: + *val = regcfg & opd->schmitt_bit; + break; + + case PINCONF_DRIVE_STRENGTH: + *val = regcfg & opd->drive_bits; + break; + + default: + ret = -EOPNOTSUPP; + break; + } + } + return ret; +} + +static int ocelot_pincfg_clrsetbits(struct ocelot_pinctrl *info, u32 regaddr, + u32 clrbits, u32 setbits) +{ + u32 val; + int ret; + + ret = regmap_read(info->pincfg, + regaddr * regmap_get_reg_stride(info->pincfg), + &val); + if (ret) + return ret; + + val &= ~clrbits; + val |= setbits; + + ret = regmap_write(info->pincfg, + regaddr * regmap_get_reg_stride(info->pincfg), + val); + + return ret; +} + +static int ocelot_hw_set_value(struct ocelot_pinctrl *info, + unsigned int pin, + unsigned int reg, + int val) +{ + int ret = -EOPNOTSUPP; + + if (info->pincfg) { + const struct ocelot_pincfg_data *opd = info->pincfg_data; + + ret = 0; + switch (reg) { + case PINCONF_BIAS: + ret = ocelot_pincfg_clrsetbits(info, pin, + opd->pd_bit | opd->pu_bit, + val); + break; + + case PINCONF_SCHMITT: + ret = ocelot_pincfg_clrsetbits(info, pin, + opd->schmitt_bit, + val); + break; + + case PINCONF_DRIVE_STRENGTH: + if (val <= 3) + ret = ocelot_pincfg_clrsetbits(info, pin, + opd->drive_bits, + val); + else + ret = -EINVAL; + break; + + default: + ret = -EOPNOTSUPP; + break; + } + } + return ret; +} + +static int ocelot_pinconf_get(struct pinctrl_dev *pctldev, + unsigned int pin, unsigned long *config) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + u32 param = pinconf_to_config_param(*config); + int val, err; + + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: + case PIN_CONFIG_BIAS_PULL_DOWN: + err = ocelot_hw_get_value(info, pin, PINCONF_BIAS, &val); + if (err) + return err; + if (param == PIN_CONFIG_BIAS_DISABLE) + val = (val == 0); + else if (param == PIN_CONFIG_BIAS_PULL_DOWN) + val = !!(val & info->pincfg_data->pd_bit); + else /* PIN_CONFIG_BIAS_PULL_UP */ + val = !!(val & info->pincfg_data->pu_bit); + break; + + case PIN_CONFIG_INPUT_SCHMITT_ENABLE: + if (!info->pincfg_data->schmitt_bit) + return -EOPNOTSUPP; + + err = ocelot_hw_get_value(info, pin, PINCONF_SCHMITT, &val); + if (err) + return err; + + val = !!(val & info->pincfg_data->schmitt_bit); + break; + + case PIN_CONFIG_DRIVE_STRENGTH: + err = ocelot_hw_get_value(info, pin, PINCONF_DRIVE_STRENGTH, + &val); + if (err) + return err; + break; + + case PIN_CONFIG_OUTPUT: + err = regmap_read(info->map, REG(OCELOT_GPIO_OUT, info, pin), + &val); + if (err) + return err; + val = !!(val & BIT(pin % 32)); + break; + + case PIN_CONFIG_INPUT_ENABLE: + case PIN_CONFIG_OUTPUT_ENABLE: + err = regmap_read(info->map, REG(OCELOT_GPIO_OE, info, pin), + &val); + if (err) + return err; + val = val & BIT(pin % 32); + if (param == PIN_CONFIG_OUTPUT_ENABLE) + val = !!val; + else + val = !val; + break; + + default: + return -EOPNOTSUPP; + } + + *config = pinconf_to_config_packed(param, val); + + return 0; +} + +static int ocelot_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *configs, unsigned int num_configs) +{ + struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); + const struct ocelot_pincfg_data *opd = info->pincfg_data; + u32 param, arg, p; + int cfg, err = 0; + + for (cfg = 0; cfg < num_configs; cfg++) { + param = pinconf_to_config_param(configs[cfg]); + arg = pinconf_to_config_argument(configs[cfg]); + + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: + case PIN_CONFIG_BIAS_PULL_DOWN: + arg = (param == PIN_CONFIG_BIAS_DISABLE) ? 0 : + (param == PIN_CONFIG_BIAS_PULL_UP) ? + opd->pu_bit : opd->pd_bit; + + err = ocelot_hw_set_value(info, pin, PINCONF_BIAS, arg); + if (err) + goto err; + + break; + + case PIN_CONFIG_INPUT_SCHMITT_ENABLE: + if (!opd->schmitt_bit) + return -EOPNOTSUPP; + + arg = arg ? opd->schmitt_bit : 0; + err = ocelot_hw_set_value(info, pin, PINCONF_SCHMITT, + arg); + if (err) + goto err; + + break; + + case PIN_CONFIG_DRIVE_STRENGTH: + err = ocelot_hw_set_value(info, pin, + PINCONF_DRIVE_STRENGTH, + arg); + if (err) + goto err; + + break; + + case PIN_CONFIG_OUTPUT_ENABLE: + case PIN_CONFIG_INPUT_ENABLE: + case PIN_CONFIG_OUTPUT: + p = pin % 32; + if (arg) + regmap_write(info->map, + REG(OCELOT_GPIO_OUT_SET, info, + pin), + BIT(p)); + else + regmap_write(info->map, + REG(OCELOT_GPIO_OUT_CLR, info, + pin), + BIT(p)); + regmap_update_bits(info->map, + REG(OCELOT_GPIO_OE, info, pin), + BIT(p), + param == PIN_CONFIG_INPUT_ENABLE ? + 0 : BIT(p)); + break; + + default: + err = -EOPNOTSUPP; + } + } +err: + return err; +} + +static const struct pinconf_ops ocelot_confops = { + .is_generic = true, + .pin_config_get = ocelot_pinconf_get, + .pin_config_set = ocelot_pinconf_set, + .pin_config_config_dbg_show = pinconf_generic_dump_config, +}; + +static const struct pinctrl_ops ocelot_pctl_ops = { + .get_groups_count = ocelot_pctl_get_groups_count, + .get_group_name = ocelot_pctl_get_group_name, + .get_group_pins = ocelot_pctl_get_group_pins, + .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, + .dt_free_map = pinconf_generic_dt_free_map, +}; + +static struct ocelot_match_data luton_desc = { + .desc = { + .name = "luton-pinctrl", + .pins = luton_pins, + .npins = ARRAY_SIZE(luton_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .owner = THIS_MODULE, + }, +}; + +static struct ocelot_match_data serval_desc = { + .desc = { + .name = "serval-pinctrl", + .pins = serval_pins, + .npins = ARRAY_SIZE(serval_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .owner = THIS_MODULE, + }, +}; + +static struct ocelot_match_data ocelot_desc = { + .desc = { + .name = "ocelot-pinctrl", + .pins = ocelot_pins, + .npins = ARRAY_SIZE(ocelot_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .owner = THIS_MODULE, + }, +}; + +static struct ocelot_match_data jaguar2_desc = { + .desc = { + .name = "jaguar2-pinctrl", + .pins = jaguar2_pins, + .npins = ARRAY_SIZE(jaguar2_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .owner = THIS_MODULE, + }, +}; + +static struct ocelot_match_data servalt_desc = { + .desc = { + .name = "servalt-pinctrl", + .pins = servalt_pins, + .npins = ARRAY_SIZE(servalt_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .owner = THIS_MODULE, + }, +}; + +static struct ocelot_match_data sparx5_desc = { + .desc = { + .name = "sparx5-pinctrl", + .pins = sparx5_pins, + .npins = ARRAY_SIZE(sparx5_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &ocelot_pmx_ops, + .confops = &ocelot_confops, + .owner = THIS_MODULE, + }, + .pincfg_data = { + .pd_bit = BIT(4), + .pu_bit = BIT(3), + .drive_bits = GENMASK(1, 0), + .schmitt_bit = BIT(2), + }, +}; + +static struct ocelot_match_data lan966x_desc = { + .desc = { + .name = "lan966x-pinctrl", + .pins = lan966x_pins, + .npins = ARRAY_SIZE(lan966x_pins), + .pctlops = &ocelot_pctl_ops, + .pmxops = &lan966x_pmx_ops, + .confops = &ocelot_confops, + .owner = THIS_MODULE, + }, + .pincfg_data = { + .pd_bit = BIT(3), + .pu_bit = BIT(2), + .drive_bits = GENMASK(1, 0), + }, +}; + +static int ocelot_create_group_func_map(struct device *dev, + struct ocelot_pinctrl *info) +{ + int f, npins, i; + u8 *pins = kcalloc(info->desc->npins, sizeof(u8), GFP_KERNEL); + + if (!pins) + return -ENOMEM; + + for (f = 0; f < FUNC_MAX; f++) { + for (npins = 0, i = 0; i < info->desc->npins; i++) { + if (ocelot_pin_function_idx(info, i, f) >= 0) + pins[npins++] = i; + } + + if (!npins) + continue; + + info->func[f].ngroups = npins; + info->func[f].groups = devm_kcalloc(dev, npins, sizeof(char *), + GFP_KERNEL); + if (!info->func[f].groups) { + kfree(pins); + return -ENOMEM; + } + + for (i = 0; i < npins; i++) + info->func[f].groups[i] = + info->desc->pins[pins[i]].name; + } + + kfree(pins); + + return 0; +} + +static int ocelot_pinctrl_register(struct platform_device *pdev, + struct ocelot_pinctrl *info) +{ + int ret; + + ret = ocelot_create_group_func_map(&pdev->dev, info); + if (ret) { + dev_err(&pdev->dev, "Unable to create group func map.\n"); + return ret; + } + + info->pctl = devm_pinctrl_register(&pdev->dev, info->desc, info); + if (IS_ERR(info->pctl)) { + dev_err(&pdev->dev, "Failed to register pinctrl\n"); + return PTR_ERR(info->pctl); + } + + return 0; +} + +static int ocelot_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int val; + + regmap_read(info->map, REG(OCELOT_GPIO_IN, info, offset), &val); + + return !!(val & BIT(offset % 32)); +} + +static void ocelot_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) +{ + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + + if (value) + regmap_write(info->map, REG(OCELOT_GPIO_OUT_SET, info, offset), + BIT(offset % 32)); + else + regmap_write(info->map, REG(OCELOT_GPIO_OUT_CLR, info, offset), + BIT(offset % 32)); +} + +static int ocelot_gpio_get_direction(struct gpio_chip *chip, + unsigned int offset) +{ + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int val; + + regmap_read(info->map, REG(OCELOT_GPIO_OE, info, offset), &val); + + if (val & BIT(offset % 32)) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; +} + +static int ocelot_gpio_direction_input(struct gpio_chip *chip, + unsigned int offset) +{ + return pinctrl_gpio_direction_input(chip->base + offset); +} + +static int ocelot_gpio_direction_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int pin = BIT(offset % 32); + + if (value) + regmap_write(info->map, REG(OCELOT_GPIO_OUT_SET, info, offset), + pin); + else + regmap_write(info->map, REG(OCELOT_GPIO_OUT_CLR, info, offset), + pin); + + return pinctrl_gpio_direction_output(chip->base + offset); +} + +static const struct gpio_chip ocelot_gpiolib_chip = { + .request = gpiochip_generic_request, + .free = gpiochip_generic_free, + .set = ocelot_gpio_set, + .get = ocelot_gpio_get, + .get_direction = ocelot_gpio_get_direction, + .direction_input = ocelot_gpio_direction_input, + .direction_output = ocelot_gpio_direction_output, + .owner = THIS_MODULE, +}; + +static void ocelot_irq_mask(struct irq_data *data) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int gpio = irqd_to_hwirq(data); + + regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio), + BIT(gpio % 32), 0); + gpiochip_disable_irq(chip, gpio); +} + +static void ocelot_irq_work(struct work_struct *work) +{ + struct ocelot_irq_work *w = container_of(work, struct ocelot_irq_work, irq_work); + struct irq_chip *parent_chip = irq_desc_get_chip(w->irq_desc); + struct gpio_chip *chip = irq_desc_get_chip_data(w->irq_desc); + struct irq_data *data = irq_desc_get_irq_data(w->irq_desc); + unsigned int gpio = irqd_to_hwirq(data); + + local_irq_disable(); + chained_irq_enter(parent_chip, w->irq_desc); + generic_handle_domain_irq(chip->irq.domain, gpio); + chained_irq_exit(parent_chip, w->irq_desc); + local_irq_enable(); + + kfree(w); +} + +static void ocelot_irq_unmask_level(struct irq_data *data) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + struct irq_desc *desc = irq_data_to_desc(data); + unsigned int gpio = irqd_to_hwirq(data); + unsigned int bit = BIT(gpio % 32); + bool ack = false, active = false; + u8 trigger_level; + int val; + + trigger_level = irqd_get_trigger_type(data); + + /* Check if the interrupt line is still active. */ + regmap_read(info->map, REG(OCELOT_GPIO_IN, info, gpio), &val); + if ((!(val & bit) && trigger_level == IRQ_TYPE_LEVEL_LOW) || + (val & bit && trigger_level == IRQ_TYPE_LEVEL_HIGH)) + active = true; + + /* + * Check if the interrupt controller has seen any changes in the + * interrupt line. + */ + regmap_read(info->map, REG(OCELOT_GPIO_INTR, info, gpio), &val); + if (val & bit) + ack = true; + + /* Try to clear any rising edges */ + if (!active && ack) + regmap_write_bits(info->map, REG(OCELOT_GPIO_INTR, info, gpio), + bit, bit); + + /* Enable the interrupt now */ + gpiochip_enable_irq(chip, gpio); + regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio), + bit, bit); + + /* + * In case the interrupt line is still active then it means that + * there happen another interrupt while the line was active. + * So we missed that one, so we need to kick the interrupt again + * handler. + */ + regmap_read(info->map, REG(OCELOT_GPIO_IN, info, gpio), &val); + if ((!(val & bit) && trigger_level == IRQ_TYPE_LEVEL_LOW) || + (val & bit && trigger_level == IRQ_TYPE_LEVEL_HIGH)) + active = true; + + if (active) { + struct ocelot_irq_work *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + if (!work) + return; + + work->irq_desc = desc; + INIT_WORK(&work->irq_work, ocelot_irq_work); + queue_work(info->wq, &work->irq_work); + } +} + +static void ocelot_irq_unmask(struct irq_data *data) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int gpio = irqd_to_hwirq(data); + + gpiochip_enable_irq(chip, gpio); + regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio), + BIT(gpio % 32), BIT(gpio % 32)); +} + +static void ocelot_irq_ack(struct irq_data *data) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int gpio = irqd_to_hwirq(data); + + regmap_write_bits(info->map, REG(OCELOT_GPIO_INTR, info, gpio), + BIT(gpio % 32), BIT(gpio % 32)); +} + +static int ocelot_irq_set_type(struct irq_data *data, unsigned int type); + +static struct irq_chip ocelot_level_irqchip = { + .name = "gpio", + .irq_mask = ocelot_irq_mask, + .irq_ack = ocelot_irq_ack, + .irq_unmask = ocelot_irq_unmask_level, + .flags = IRQCHIP_IMMUTABLE, + .irq_set_type = ocelot_irq_set_type, + GPIOCHIP_IRQ_RESOURCE_HELPERS +}; + +static struct irq_chip ocelot_irqchip = { + .name = "gpio", + .irq_mask = ocelot_irq_mask, + .irq_ack = ocelot_irq_ack, + .irq_unmask = ocelot_irq_unmask, + .irq_set_type = ocelot_irq_set_type, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS +}; + +static int ocelot_irq_set_type(struct irq_data *data, unsigned int type) +{ + if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) + irq_set_chip_handler_name_locked(data, &ocelot_level_irqchip, + handle_level_irq, NULL); + if (type & IRQ_TYPE_EDGE_BOTH) + irq_set_chip_handler_name_locked(data, &ocelot_irqchip, + handle_edge_irq, NULL); + + return 0; +} + +static void ocelot_irq_handler(struct irq_desc *desc) +{ + struct irq_chip *parent_chip = irq_desc_get_chip(desc); + struct gpio_chip *chip = irq_desc_get_handler_data(desc); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + unsigned int id_reg = OCELOT_GPIO_INTR_IDENT * info->stride; + unsigned int reg = 0, irq, i; + unsigned long irqs; + + for (i = 0; i < info->stride; i++) { + regmap_read(info->map, id_reg + 4 * i, ®); + if (!reg) + continue; + + chained_irq_enter(parent_chip, desc); + + irqs = reg; + + for_each_set_bit(irq, &irqs, + min(32U, info->desc->npins - 32 * i)) + generic_handle_domain_irq(chip->irq.domain, irq + 32 * i); + + chained_irq_exit(parent_chip, desc); + } +} + +static int ocelot_gpiochip_register(struct platform_device *pdev, + struct ocelot_pinctrl *info) +{ + struct gpio_chip *gc; + struct gpio_irq_chip *girq; + int irq; + + info->gpio_chip = ocelot_gpiolib_chip; + + gc = &info->gpio_chip; + gc->ngpio = info->desc->npins; + gc->parent = &pdev->dev; + gc->base = -1; + gc->label = "ocelot-gpio"; + + irq = platform_get_irq_optional(pdev, 0); + if (irq > 0) { + girq = &gc->irq; + gpio_irq_chip_set_chip(girq, &ocelot_irqchip); + girq->parent_handler = ocelot_irq_handler; + girq->num_parents = 1; + girq->parents = devm_kcalloc(&pdev->dev, 1, + sizeof(*girq->parents), + GFP_KERNEL); + if (!girq->parents) + return -ENOMEM; + girq->parents[0] = irq; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_edge_irq; + } + + return devm_gpiochip_add_data(&pdev->dev, gc, info); +} + +static const struct of_device_id ocelot_pinctrl_of_match[] = { + { .compatible = "mscc,luton-pinctrl", .data = &luton_desc }, + { .compatible = "mscc,serval-pinctrl", .data = &serval_desc }, + { .compatible = "mscc,ocelot-pinctrl", .data = &ocelot_desc }, + { .compatible = "mscc,jaguar2-pinctrl", .data = &jaguar2_desc }, + { .compatible = "mscc,servalt-pinctrl", .data = &servalt_desc }, + { .compatible = "microchip,sparx5-pinctrl", .data = &sparx5_desc }, + { .compatible = "microchip,lan966x-pinctrl", .data = &lan966x_desc }, + {}, +}; +MODULE_DEVICE_TABLE(of, ocelot_pinctrl_of_match); + +static struct regmap *ocelot_pinctrl_create_pincfg(struct platform_device *pdev, + const struct ocelot_pinctrl *info) +{ + void __iomem *base; + + const struct regmap_config regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = info->desc->npins * 4, + .name = "pincfg", + }; + + base = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(base)) { + dev_dbg(&pdev->dev, "Failed to ioremap config registers (no extended pinconf)\n"); + return NULL; + } + + return devm_regmap_init_mmio(&pdev->dev, base, ®map_config); +} + +static void ocelot_destroy_workqueue(void *data) +{ + destroy_workqueue(data); +} + +static int ocelot_pinctrl_probe(struct platform_device *pdev) +{ + const struct ocelot_match_data *data; + struct device *dev = &pdev->dev; + struct ocelot_pinctrl *info; + struct reset_control *reset; + struct regmap *pincfg; + int ret; + struct regmap_config regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + }; + + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + data = device_get_match_data(dev); + if (!data) + return -EINVAL; + + info->desc = devm_kmemdup(dev, &data->desc, sizeof(*info->desc), + GFP_KERNEL); + if (!info->desc) + return -ENOMEM; + + info->wq = alloc_ordered_workqueue("ocelot_ordered", 0); + if (!info->wq) + return -ENOMEM; + + ret = devm_add_action_or_reset(dev, ocelot_destroy_workqueue, + info->wq); + if (ret) + return ret; + + info->pincfg_data = &data->pincfg_data; + + reset = devm_reset_control_get_optional_shared(dev, "switch"); + if (IS_ERR(reset)) + return dev_err_probe(dev, PTR_ERR(reset), + "Failed to get reset\n"); + reset_control_reset(reset); + + info->stride = 1 + (info->desc->npins - 1) / 32; + + regmap_config.max_register = OCELOT_GPIO_SD_MAP * info->stride + 15 * 4; + + info->map = ocelot_regmap_from_resource(pdev, 0, ®map_config); + if (IS_ERR(info->map)) + return dev_err_probe(dev, PTR_ERR(info->map), + "Failed to create regmap\n"); + dev_set_drvdata(dev, info); + info->dev = dev; + + /* Pinconf registers */ + if (info->desc->confops) { + pincfg = ocelot_pinctrl_create_pincfg(pdev, info); + if (IS_ERR(pincfg)) + dev_dbg(dev, "Failed to create pincfg regmap\n"); + else + info->pincfg = pincfg; + } + + ret = ocelot_pinctrl_register(pdev, info); + if (ret) + return ret; + + ret = ocelot_gpiochip_register(pdev, info); + if (ret) + return ret; + + dev_info(dev, "driver registered\n"); + + return 0; +} + +static struct platform_driver ocelot_pinctrl_driver = { + .driver = { + .name = "pinctrl-ocelot", + .of_match_table = of_match_ptr(ocelot_pinctrl_of_match), + .suppress_bind_attrs = true, + }, + .probe = ocelot_pinctrl_probe, +}; +module_platform_driver(ocelot_pinctrl_driver); + +MODULE_DESCRIPTION("Ocelot Chip Pinctrl Driver"); +MODULE_LICENSE("Dual MIT/GPL"); |