developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * xHCI host controller toolkit driver |
| 4 | * |
| 5 | * Copyright (C) 2021 MediaTek Inc. |
| 6 | * |
| 7 | * Author: Zhanyong Wang <zhanyong.wang@mediatek.com> |
| 8 | */ |
| 9 | |
| 10 | #include <linux/platform_device.h> |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <linux/usb.h> |
| 14 | #include <linux/of.h> |
| 15 | #include <linux/of_address.h> |
| 16 | #include <dt-bindings/phy/phy.h> |
| 17 | #include "xhci-mtk.h" |
| 18 | #include "xhci-mtk-test.h" |
| 19 | #include "xhci-mtk-unusual.h" |
| 20 | |
| 21 | |
| 22 | u32 binary_write_width1(u32 __iomem *addr, u32 shift, const char *buf) |
| 23 | { |
| 24 | u32 val = 0; |
| 25 | |
| 26 | if (!strncmp(buf, STRNG_0_WIDTH_1, BIT_WIDTH_1)) |
| 27 | val = 0; |
| 28 | else if (!strncmp(buf, STRNG_1_WIDTH_1, BIT_WIDTH_1)) |
| 29 | val = 1; |
| 30 | else |
| 31 | val = 0xFFFFFFFF; |
| 32 | |
| 33 | if (val <= 1) |
| 34 | val = usb20hqa_write(addr, shift, MSK_WIDTH_1, val); |
| 35 | |
| 36 | return val; |
| 37 | } |
| 38 | |
| 39 | u32 binary_write_width3(u32 __iomem *addr, u32 shift, const char *buf) |
| 40 | { |
| 41 | u32 val = 0; |
| 42 | |
| 43 | if (!strncmp(buf, STRNG_0_WIDTH_3, BIT_WIDTH_3)) |
| 44 | val = 0; |
| 45 | else if (!strncmp(buf, STRNG_1_WIDTH_3, BIT_WIDTH_3)) |
| 46 | val = 1; |
| 47 | else if (!strncmp(buf, STRNG_2_WIDTH_3, BIT_WIDTH_3)) |
| 48 | val = 2; |
| 49 | else if (!strncmp(buf, STRNG_3_WIDTH_3, BIT_WIDTH_3)) |
| 50 | val = 3; |
| 51 | else if (!strncmp(buf, STRNG_4_WIDTH_3, BIT_WIDTH_3)) |
| 52 | val = 4; |
| 53 | else if (!strncmp(buf, STRNG_5_WIDTH_3, BIT_WIDTH_3)) |
| 54 | val = 5; |
| 55 | else if (!strncmp(buf, STRNG_6_WIDTH_3, BIT_WIDTH_3)) |
| 56 | val = 6; |
| 57 | else if (!strncmp(buf, STRNG_7_WIDTH_3, BIT_WIDTH_3)) |
| 58 | val = 7; |
| 59 | else |
| 60 | val = 0xFFFFFFFF; |
| 61 | |
| 62 | if (val <= 7) |
| 63 | val = usb20hqa_write(addr, shift, MSK_WIDTH_3, val); |
| 64 | |
| 65 | return val; |
| 66 | } |
| 67 | |
| 68 | u32 binary_write_width4(u32 __iomem *addr, u32 shift, const char *buf) |
| 69 | { |
| 70 | u32 val = 0; |
| 71 | |
| 72 | if (!strncmp(buf, STRNG_0_WIDTH_4, BIT_WIDTH_4)) |
| 73 | val = 0; |
| 74 | else if (!strncmp(buf, STRNG_1_WIDTH_4, BIT_WIDTH_4)) |
| 75 | val = 1; |
| 76 | else if (!strncmp(buf, STRNG_2_WIDTH_4, BIT_WIDTH_4)) |
| 77 | val = 2; |
| 78 | else if (!strncmp(buf, STRNG_3_WIDTH_4, BIT_WIDTH_4)) |
| 79 | val = 3; |
| 80 | else if (!strncmp(buf, STRNG_4_WIDTH_4, BIT_WIDTH_4)) |
| 81 | val = 4; |
| 82 | else if (!strncmp(buf, STRNG_5_WIDTH_4, BIT_WIDTH_4)) |
| 83 | val = 5; |
| 84 | else if (!strncmp(buf, STRNG_6_WIDTH_4, BIT_WIDTH_4)) |
| 85 | val = 6; |
| 86 | else if (!strncmp(buf, STRNG_7_WIDTH_4, BIT_WIDTH_4)) |
| 87 | val = 7; |
| 88 | else if (!strncmp(buf, STRNG_8_WIDTH_4, BIT_WIDTH_4)) |
| 89 | val = 8; |
| 90 | else if (!strncmp(buf, STRNG_9_WIDTH_4, BIT_WIDTH_4)) |
| 91 | val = 9; |
| 92 | else if (!strncmp(buf, STRNG_A_WIDTH_4, BIT_WIDTH_4)) |
| 93 | val = 10; |
| 94 | else if (!strncmp(buf, STRNG_B_WIDTH_4, BIT_WIDTH_4)) |
| 95 | val = 11; |
| 96 | else if (!strncmp(buf, STRNG_C_WIDTH_4, BIT_WIDTH_4)) |
| 97 | val = 12; |
| 98 | else if (!strncmp(buf, STRNG_D_WIDTH_4, BIT_WIDTH_4)) |
| 99 | val = 13; |
| 100 | else if (!strncmp(buf, STRNG_E_WIDTH_4, BIT_WIDTH_4)) |
| 101 | val = 14; |
| 102 | else if (!strncmp(buf, STRNG_F_WIDTH_4, BIT_WIDTH_4)) |
| 103 | val = 15; |
| 104 | else |
| 105 | val = 0xFFFFFFFF; |
| 106 | |
| 107 | if (val <= 15) |
| 108 | val = usb20hqa_write(addr, shift, MSK_WIDTH_4, val); |
| 109 | |
| 110 | return val; |
| 111 | } |
| 112 | |
| 113 | u32 bin2str(u32 value, u32 width, char *buffer) |
| 114 | { |
| 115 | int i, temp; |
| 116 | |
| 117 | temp = value; |
| 118 | buffer[width] = '\0'; |
| 119 | for (i = (width - 1); i >= 0; i--) { |
| 120 | buffer[i] = '0'; |
| 121 | if (value % 2) |
| 122 | buffer[i] = '1'; |
| 123 | |
| 124 | value /= 2; |
| 125 | } |
| 126 | |
| 127 | return value; |
| 128 | } |
| 129 | |
| 130 | int query_phy_addr(struct device_node *np, int *start, u32 *addr, u32 *length) |
| 131 | { |
| 132 | int ret = -EPERM; |
| 133 | struct of_phandle_args args; |
| 134 | struct resource res; |
| 135 | int numphys = 0; |
| 136 | int index; |
| 137 | |
| 138 | if (start == NULL || addr == NULL || length == NULL) |
| 139 | return -EINVAL; |
| 140 | |
| 141 | numphys = of_count_phandle_with_args(np, "phys", "#phy-cells"); |
| 142 | for ( index = *start; (numphys > 0) && index < numphys; index++) { |
| 143 | ret = of_parse_phandle_with_args(np, "phys", "#phy-cells", |
| 144 | index, &args); |
| 145 | if (ret < 0) |
| 146 | break; |
| 147 | |
| 148 | if (args.args[0] == PHY_TYPE_USB2) { |
| 149 | ret = of_address_to_resource(args.np, 0, &res); |
| 150 | if (ret < 0) { |
| 151 | of_node_put(args.np); |
| 152 | break; |
| 153 | } |
| 154 | |
| 155 | *addr = res.start; |
| 156 | *length = (u32)resource_size(&res); |
| 157 | *start = index; |
| 158 | if (!of_device_is_available(args.np)) |
| 159 | ret = -EACCES; |
| 160 | |
| 161 | of_node_put(args.np); |
| 162 | break; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | ret = index < numphys ? ret : -EPERM; |
| 167 | return ret; |
| 168 | } |