Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Thomas Abraham | cf18bff | 2016-04-23 22:18:08 +0530 | [diff] [blame] | 2 | /* |
| 3 | * Exynos7420 pinctrl driver. |
| 4 | * Copyright (C) 2016 Samsung Electronics |
| 5 | * Thomas Abraham <thomas.ab@samsung.com> |
Thomas Abraham | cf18bff | 2016-04-23 22:18:08 +0530 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #include <common.h> |
| 9 | #include <dm.h> |
| 10 | #include <errno.h> |
| 11 | #include <asm/io.h> |
| 12 | #include <dm/pinctrl.h> |
| 13 | #include <dm/root.h> |
| 14 | #include <fdtdec.h> |
| 15 | #include <asm/arch/pinmux.h> |
| 16 | #include "pinctrl-exynos.h" |
| 17 | |
Thomas Abraham | cf18bff | 2016-04-23 22:18:08 +0530 | [diff] [blame] | 18 | #define GPD1_OFFSET 0xc0 |
| 19 | |
| 20 | static struct exynos_pinctrl_config_data serial2_conf[] = { |
| 21 | { |
| 22 | .offset = GPD1_OFFSET + PIN_CON, |
| 23 | .mask = 0x00ff0000, |
| 24 | .value = 0x00220000, |
| 25 | }, { |
| 26 | .offset = GPD1_OFFSET + PIN_PUD, |
| 27 | .mask = 0x00000f00, |
| 28 | .value = 0x00000f00, |
| 29 | }, |
| 30 | }; |
| 31 | |
| 32 | static int exynos7420_pinctrl_request(struct udevice *dev, int peripheral, |
| 33 | int flags) |
| 34 | { |
| 35 | struct exynos_pinctrl_priv *priv = dev_get_priv(dev); |
| 36 | unsigned long base = priv->base; |
| 37 | |
| 38 | switch (PERIPH_ID_UART2) { |
| 39 | case PERIPH_ID_UART2: |
| 40 | exynos_pinctrl_setup_peri(serial2_conf, |
| 41 | ARRAY_SIZE(serial2_conf), base); |
| 42 | break; |
| 43 | default: |
| 44 | return -ENODEV; |
| 45 | } |
| 46 | |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | static struct pinctrl_ops exynos7420_pinctrl_ops = { |
| 51 | .set_state = exynos_pinctrl_set_state, |
| 52 | .request = exynos7420_pinctrl_request, |
| 53 | }; |
| 54 | |
| 55 | /* pin banks of Exynos7420 pin-controller - BUS0 */ |
| 56 | static const struct samsung_pin_bank_data exynos7420_pin_banks0[] = { |
| 57 | EXYNOS_PIN_BANK(5, 0x000, "gpb0"), |
| 58 | EXYNOS_PIN_BANK(8, 0x020, "gpc0"), |
| 59 | EXYNOS_PIN_BANK(2, 0x040, "gpc1"), |
| 60 | EXYNOS_PIN_BANK(6, 0x060, "gpc2"), |
| 61 | EXYNOS_PIN_BANK(8, 0x080, "gpc3"), |
| 62 | EXYNOS_PIN_BANK(4, 0x0a0, "gpd0"), |
| 63 | EXYNOS_PIN_BANK(6, 0x0c0, "gpd1"), |
| 64 | EXYNOS_PIN_BANK(8, 0x0e0, "gpd2"), |
| 65 | EXYNOS_PIN_BANK(5, 0x100, "gpd4"), |
| 66 | EXYNOS_PIN_BANK(4, 0x120, "gpd5"), |
| 67 | EXYNOS_PIN_BANK(6, 0x140, "gpd6"), |
| 68 | EXYNOS_PIN_BANK(3, 0x160, "gpd7"), |
| 69 | EXYNOS_PIN_BANK(2, 0x180, "gpd8"), |
| 70 | EXYNOS_PIN_BANK(2, 0x1a0, "gpg0"), |
| 71 | EXYNOS_PIN_BANK(4, 0x1c0, "gpg3"), |
| 72 | }; |
| 73 | |
| 74 | /* pin banks of Exynos7420 pin-controller - FSYS0 */ |
| 75 | static const struct samsung_pin_bank_data exynos7420_pin_banks1[] = { |
| 76 | EXYNOS_PIN_BANK(7, 0x000, "gpr4"), |
| 77 | }; |
| 78 | |
| 79 | /* pin banks of Exynos7420 pin-controller - FSYS1 */ |
| 80 | static const struct samsung_pin_bank_data exynos7420_pin_banks2[] = { |
| 81 | EXYNOS_PIN_BANK(4, 0x000, "gpr0"), |
| 82 | EXYNOS_PIN_BANK(8, 0x020, "gpr1"), |
| 83 | EXYNOS_PIN_BANK(5, 0x040, "gpr2"), |
| 84 | EXYNOS_PIN_BANK(8, 0x060, "gpr3"), |
| 85 | }; |
| 86 | |
| 87 | const struct samsung_pin_ctrl exynos7420_pin_ctrl[] = { |
| 88 | { |
| 89 | /* pin-controller instance BUS0 data */ |
| 90 | .pin_banks = exynos7420_pin_banks0, |
| 91 | .nr_banks = ARRAY_SIZE(exynos7420_pin_banks0), |
| 92 | }, { |
| 93 | /* pin-controller instance FSYS0 data */ |
| 94 | .pin_banks = exynos7420_pin_banks1, |
| 95 | .nr_banks = ARRAY_SIZE(exynos7420_pin_banks1), |
| 96 | }, { |
| 97 | /* pin-controller instance FSYS1 data */ |
| 98 | .pin_banks = exynos7420_pin_banks2, |
| 99 | .nr_banks = ARRAY_SIZE(exynos7420_pin_banks2), |
| 100 | }, |
| 101 | }; |
| 102 | |
| 103 | static const struct udevice_id exynos7420_pinctrl_ids[] = { |
| 104 | { .compatible = "samsung,exynos7420-pinctrl", |
| 105 | .data = (ulong)exynos7420_pin_ctrl }, |
| 106 | { } |
| 107 | }; |
| 108 | |
| 109 | U_BOOT_DRIVER(pinctrl_exynos7420) = { |
| 110 | .name = "pinctrl_exynos7420", |
| 111 | .id = UCLASS_PINCTRL, |
| 112 | .of_match = exynos7420_pinctrl_ids, |
| 113 | .priv_auto_alloc_size = sizeof(struct exynos_pinctrl_priv), |
| 114 | .ops = &exynos7420_pinctrl_ops, |
| 115 | .probe = exynos_pinctrl_probe, |
| 116 | .flags = DM_FLAG_PRE_RELOC |
| 117 | }; |