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> |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 16 | #include "xhci-mtk.h" |
| 17 | #include "xhci-mtk-test.h" |
| 18 | #include "xhci-mtk-unusual.h" |
| 19 | |
| 20 | |
| 21 | u32 binary_write_width1(u32 __iomem *addr, u32 shift, const char *buf) |
| 22 | { |
| 23 | u32 val = 0; |
| 24 | |
| 25 | if (!strncmp(buf, STRNG_0_WIDTH_1, BIT_WIDTH_1)) |
| 26 | val = 0; |
| 27 | else if (!strncmp(buf, STRNG_1_WIDTH_1, BIT_WIDTH_1)) |
| 28 | val = 1; |
| 29 | else |
| 30 | val = 0xFFFFFFFF; |
| 31 | |
| 32 | if (val <= 1) |
| 33 | val = usb20hqa_write(addr, shift, MSK_WIDTH_1, val); |
| 34 | |
| 35 | return val; |
| 36 | } |
| 37 | |
developer | d9f9d25 | 2022-08-15 17:11:38 +0800 | [diff] [blame] | 38 | u32 binary_write_width2(u32 __iomem *addr, u32 shift, const char *buf) |
| 39 | { |
| 40 | u32 val = 0; |
| 41 | |
| 42 | if (!strncmp(buf, STRNG_0_WIDTH_2, BIT_WIDTH_2)) |
| 43 | val = 0; |
| 44 | else if (!strncmp(buf, STRNG_1_WIDTH_2, BIT_WIDTH_2)) |
| 45 | val = 1; |
| 46 | else if (!strncmp(buf, STRNG_2_WIDTH_2, BIT_WIDTH_2)) |
| 47 | val = 2; |
| 48 | else if (!strncmp(buf, STRNG_3_WIDTH_2, BIT_WIDTH_2)) |
| 49 | val = 3; |
| 50 | else |
| 51 | val = 0xFFFFFFFF; |
| 52 | |
| 53 | if (val <= 3) |
| 54 | val = usb20hqa_write(addr, shift, MSK_WIDTH_2, val); |
| 55 | |
| 56 | return val; |
| 57 | } |
| 58 | |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 59 | u32 binary_write_width3(u32 __iomem *addr, u32 shift, const char *buf) |
| 60 | { |
| 61 | u32 val = 0; |
| 62 | |
| 63 | if (!strncmp(buf, STRNG_0_WIDTH_3, BIT_WIDTH_3)) |
| 64 | val = 0; |
| 65 | else if (!strncmp(buf, STRNG_1_WIDTH_3, BIT_WIDTH_3)) |
| 66 | val = 1; |
| 67 | else if (!strncmp(buf, STRNG_2_WIDTH_3, BIT_WIDTH_3)) |
| 68 | val = 2; |
| 69 | else if (!strncmp(buf, STRNG_3_WIDTH_3, BIT_WIDTH_3)) |
| 70 | val = 3; |
| 71 | else if (!strncmp(buf, STRNG_4_WIDTH_3, BIT_WIDTH_3)) |
| 72 | val = 4; |
| 73 | else if (!strncmp(buf, STRNG_5_WIDTH_3, BIT_WIDTH_3)) |
| 74 | val = 5; |
| 75 | else if (!strncmp(buf, STRNG_6_WIDTH_3, BIT_WIDTH_3)) |
| 76 | val = 6; |
| 77 | else if (!strncmp(buf, STRNG_7_WIDTH_3, BIT_WIDTH_3)) |
| 78 | val = 7; |
| 79 | else |
| 80 | val = 0xFFFFFFFF; |
| 81 | |
| 82 | if (val <= 7) |
| 83 | val = usb20hqa_write(addr, shift, MSK_WIDTH_3, val); |
| 84 | |
| 85 | return val; |
| 86 | } |
| 87 | |
| 88 | u32 binary_write_width4(u32 __iomem *addr, u32 shift, const char *buf) |
| 89 | { |
| 90 | u32 val = 0; |
| 91 | |
| 92 | if (!strncmp(buf, STRNG_0_WIDTH_4, BIT_WIDTH_4)) |
| 93 | val = 0; |
| 94 | else if (!strncmp(buf, STRNG_1_WIDTH_4, BIT_WIDTH_4)) |
| 95 | val = 1; |
| 96 | else if (!strncmp(buf, STRNG_2_WIDTH_4, BIT_WIDTH_4)) |
| 97 | val = 2; |
| 98 | else if (!strncmp(buf, STRNG_3_WIDTH_4, BIT_WIDTH_4)) |
| 99 | val = 3; |
| 100 | else if (!strncmp(buf, STRNG_4_WIDTH_4, BIT_WIDTH_4)) |
| 101 | val = 4; |
| 102 | else if (!strncmp(buf, STRNG_5_WIDTH_4, BIT_WIDTH_4)) |
| 103 | val = 5; |
| 104 | else if (!strncmp(buf, STRNG_6_WIDTH_4, BIT_WIDTH_4)) |
| 105 | val = 6; |
| 106 | else if (!strncmp(buf, STRNG_7_WIDTH_4, BIT_WIDTH_4)) |
| 107 | val = 7; |
| 108 | else if (!strncmp(buf, STRNG_8_WIDTH_4, BIT_WIDTH_4)) |
| 109 | val = 8; |
| 110 | else if (!strncmp(buf, STRNG_9_WIDTH_4, BIT_WIDTH_4)) |
| 111 | val = 9; |
| 112 | else if (!strncmp(buf, STRNG_A_WIDTH_4, BIT_WIDTH_4)) |
| 113 | val = 10; |
| 114 | else if (!strncmp(buf, STRNG_B_WIDTH_4, BIT_WIDTH_4)) |
| 115 | val = 11; |
| 116 | else if (!strncmp(buf, STRNG_C_WIDTH_4, BIT_WIDTH_4)) |
| 117 | val = 12; |
| 118 | else if (!strncmp(buf, STRNG_D_WIDTH_4, BIT_WIDTH_4)) |
| 119 | val = 13; |
| 120 | else if (!strncmp(buf, STRNG_E_WIDTH_4, BIT_WIDTH_4)) |
| 121 | val = 14; |
| 122 | else if (!strncmp(buf, STRNG_F_WIDTH_4, BIT_WIDTH_4)) |
| 123 | val = 15; |
| 124 | else |
| 125 | val = 0xFFFFFFFF; |
| 126 | |
| 127 | if (val <= 15) |
| 128 | val = usb20hqa_write(addr, shift, MSK_WIDTH_4, val); |
| 129 | |
| 130 | return val; |
| 131 | } |
| 132 | |
| 133 | u32 bin2str(u32 value, u32 width, char *buffer) |
| 134 | { |
| 135 | int i, temp; |
| 136 | |
| 137 | temp = value; |
| 138 | buffer[width] = '\0'; |
| 139 | for (i = (width - 1); i >= 0; i--) { |
| 140 | buffer[i] = '0'; |
| 141 | if (value % 2) |
| 142 | buffer[i] = '1'; |
| 143 | |
| 144 | value /= 2; |
| 145 | } |
| 146 | |
| 147 | return value; |
| 148 | } |
| 149 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 150 | int query_phy_addr(struct device_node *np, int *start, u32 *addr, u32 *length, int type) |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 151 | { |
| 152 | int ret = -EPERM; |
| 153 | struct of_phandle_args args; |
| 154 | struct resource res; |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 155 | struct device_node *node = np; |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 156 | int numphys = 0; |
| 157 | int index; |
| 158 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 159 | if (np == NULL || start == NULL || addr == NULL || length == NULL) |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 160 | return -EINVAL; |
| 161 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 162 | while (node) { |
| 163 | numphys = of_count_phandle_with_args(node, |
| 164 | "phys", "#phy-cells"); |
| 165 | for (index = *start; |
| 166 | (numphys > 0) && index < numphys; index++) { |
| 167 | ret = of_parse_phandle_with_args(node, |
| 168 | "phys", "#phy-cells", |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 169 | index, &args); |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 170 | if (ret < 0) |
| 171 | break; |
| 172 | |
| 173 | if (args.args[0] == type) { |
| 174 | ret = of_address_to_resource(args.np, |
| 175 | 0, &res); |
| 176 | if (ret < 0) { |
| 177 | of_node_put(args.np); |
| 178 | break; |
| 179 | } |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 180 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 181 | *addr = res.start; |
| 182 | *length = (u32)resource_size(&res); |
| 183 | *start = index; |
| 184 | if (!of_device_is_available(args.np)) |
| 185 | ret = -EACCES; |
| 186 | |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 187 | of_node_put(args.np); |
| 188 | break; |
| 189 | } |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 190 | } |
| 191 | if (index < numphys) |
| 192 | break; |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 193 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 194 | node = node->parent; |
| 195 | } |
| 196 | |
| 197 | ret = index < numphys ? ret : -EPERM; |
| 198 | return ret; |
| 199 | } |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 200 | |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 201 | int query_reg_addr(struct platform_device *pdev, u32 *addr, u32 *length, const char* name) |
| 202 | { |
| 203 | int ret = -EPERM; |
| 204 | struct resource *pres; |
| 205 | struct platform_device *device = pdev; |
| 206 | |
| 207 | if (pdev == NULL || addr == NULL || length == NULL) |
| 208 | return -EINVAL; |
| 209 | |
| 210 | while (device) { |
| 211 | pres = platform_get_resource_byname(device, IORESOURCE_MEM, name); |
| 212 | if (pres != NULL) { |
| 213 | *addr = pres->start; |
| 214 | *length = (u32)resource_size(pres); |
| 215 | ret = 0; |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 216 | break; |
| 217 | } |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 218 | |
| 219 | if (device->dev.parent == NULL) |
| 220 | break; |
| 221 | |
| 222 | device = to_platform_device(device->dev.parent); |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 223 | } |
| 224 | |
developer | ba28e03 | 2021-12-07 10:40:00 +0800 | [diff] [blame] | 225 | return ret; |
| 226 | } |
developer | abd06d7 | 2022-03-03 16:13:41 +0800 | [diff] [blame] | 227 | |