Angel Pons | 80d9238 | 2020-04-05 15:47:00 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 2 | |
| 3 | #include <stdint.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 4 | #include <device/mmio.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 5 | #include <device/pci_ops.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 6 | #include <device/pci.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 7 | #include <device/device.h> |
Elyes HAOUAS | a1e22b8 | 2019-03-18 22:49:36 +0100 | [diff] [blame] | 8 | #include <string.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 9 | #include <soc/iomap.h> |
| 10 | #include <soc/soc_util.h> |
| 11 | #include <soc/pmc.h> |
| 12 | #include <soc/smbus.h> |
| 13 | #include <soc/lpc.h> |
| 14 | #include <soc/pci_devs.h> |
| 15 | #include <soc/systemagent.h> |
| 16 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 17 | #ifdef __SIMPLE_DEVICE__ |
| 18 | pci_devfn_t get_hostbridge_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 19 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 20 | return PCI_DEV(0, SA_DEV, SA_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 21 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 22 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 23 | struct device *get_hostbridge_dev(void) |
| 24 | { |
Kyösti Mälkki | 903b40a | 2019-07-03 07:25:59 +0300 | [diff] [blame] | 25 | return pcidev_on_root(SA_DEV, SA_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 26 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 27 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 28 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 29 | #ifdef __SIMPLE_DEVICE__ |
| 30 | pci_devfn_t get_lpc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 31 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 32 | return PCI_DEV(0, LPC_DEV, LPC_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 33 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 34 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 35 | struct device *get_lpc_dev(void) |
| 36 | { |
Kyösti Mälkki | 903b40a | 2019-07-03 07:25:59 +0300 | [diff] [blame] | 37 | return pcidev_on_root(LPC_DEV, LPC_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 38 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 39 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 40 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 41 | #ifdef __SIMPLE_DEVICE__ |
| 42 | pci_devfn_t get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 43 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 44 | return PCI_DEV(0, PMC_DEV, PMC_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 45 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 46 | #else |
| 47 | struct device *get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 48 | { |
Kyösti Mälkki | 903b40a | 2019-07-03 07:25:59 +0300 | [diff] [blame] | 49 | return pcidev_on_root(PMC_DEV, PMC_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 50 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 51 | #endif |
| 52 | |
| 53 | #ifdef __SIMPLE_DEVICE__ |
| 54 | pci_devfn_t get_smbus_dev(void) |
| 55 | { |
| 56 | return PCI_DEV(0, SMBUS_DEV, SMBUS_FUNC); |
| 57 | } |
| 58 | #else |
| 59 | struct device *get_smbus_dev(void) |
| 60 | { |
Kyösti Mälkki | 903b40a | 2019-07-03 07:25:59 +0300 | [diff] [blame] | 61 | return pcidev_on_root(SMBUS_DEV, SMBUS_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 62 | } |
| 63 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 64 | |
| 65 | uint32_t get_pciebase(void) |
| 66 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 67 | #ifdef __SIMPLE_DEVICE__ |
| 68 | pci_devfn_t dev; |
| 69 | #else |
| 70 | struct device *dev; |
| 71 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 72 | u32 pciexbar_reg; |
| 73 | |
| 74 | dev = get_hostbridge_dev(); |
| 75 | if (!dev) |
| 76 | return 0; |
| 77 | |
| 78 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 79 | |
| 80 | if (!(pciexbar_reg & (1 << 0))) |
| 81 | return 0; |
| 82 | |
| 83 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 84 | case MASK_PCIEXBAR_LENGTH_256M: |
| 85 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 86 | break; |
| 87 | case MASK_PCIEXBAR_LENGTH_128M: |
| 88 | pciexbar_reg &= MASK_PCIEXBAR_128M; |
| 89 | break; |
| 90 | case MASK_PCIEXBAR_LENGTH_64M: |
| 91 | pciexbar_reg &= MASK_PCIEXBAR_64M; |
| 92 | break; |
| 93 | default: |
| 94 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 95 | break; |
| 96 | } |
| 97 | |
| 98 | return pciexbar_reg; |
| 99 | } |
| 100 | |
| 101 | uint32_t get_pcielength(void) |
| 102 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 103 | #ifdef __SIMPLE_DEVICE__ |
| 104 | pci_devfn_t dev; |
| 105 | #else |
| 106 | struct device *dev; |
| 107 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 108 | u32 pciexbar_reg; |
| 109 | |
| 110 | dev = get_hostbridge_dev(); |
| 111 | if (!dev) |
| 112 | return 0; |
| 113 | |
| 114 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 115 | |
| 116 | if (!(pciexbar_reg & (1 << 0))) |
| 117 | return 0; |
| 118 | |
| 119 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 120 | case MASK_PCIEXBAR_LENGTH_256M: |
| 121 | pciexbar_reg = 256; |
| 122 | break; |
| 123 | case MASK_PCIEXBAR_LENGTH_128M: |
| 124 | pciexbar_reg = 128; |
| 125 | break; |
| 126 | case MASK_PCIEXBAR_LENGTH_64M: |
| 127 | pciexbar_reg = 64; |
| 128 | break; |
| 129 | default: |
| 130 | pciexbar_reg = 64; |
| 131 | break; |
| 132 | } |
| 133 | |
| 134 | return pciexbar_reg; |
| 135 | } |
| 136 | |
| 137 | uint32_t get_tseg_memory(void) |
| 138 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 139 | #ifdef __SIMPLE_DEVICE__ |
| 140 | pci_devfn_t dev; |
| 141 | #else |
| 142 | struct device *dev; |
| 143 | #endif |
| 144 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 145 | |
| 146 | if (!dev) |
| 147 | return 0; |
| 148 | |
| 149 | return pci_read_config32(dev, TSEGMB) & MASK_TSEGMB; |
| 150 | } |
| 151 | |
| 152 | uint32_t get_top_of_low_memory(void) |
| 153 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 154 | #ifdef __SIMPLE_DEVICE__ |
| 155 | pci_devfn_t dev; |
| 156 | #else |
| 157 | struct device *dev; |
| 158 | #endif |
| 159 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 160 | |
| 161 | if (!dev) |
| 162 | return 0; |
| 163 | |
| 164 | return pci_read_config32(dev, TOLUD) & MASK_TOLUD; |
| 165 | } |
| 166 | |
| 167 | uint64_t get_top_of_upper_memory(void) |
| 168 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 169 | #ifdef __SIMPLE_DEVICE__ |
| 170 | pci_devfn_t dev; |
| 171 | #else |
| 172 | struct device *dev; |
| 173 | #endif |
| 174 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 175 | |
| 176 | if (!dev) |
| 177 | return 0; |
| 178 | |
| 179 | return ((uint64_t)(pci_read_config32(dev, TOUUD_HI) & MASK_TOUUD_HI) |
| 180 | << 32) + |
| 181 | (uint64_t)(pci_read_config32(dev, TOUUD_LO) & MASK_TOUUD_LO); |
| 182 | } |
| 183 | |
| 184 | uint16_t get_pmbase(void) |
| 185 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 186 | #ifdef __SIMPLE_DEVICE__ |
| 187 | pci_devfn_t dev; |
| 188 | #else |
| 189 | struct device *dev; |
| 190 | #endif |
| 191 | dev = get_pmc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 192 | |
| 193 | if (!dev) |
| 194 | return 0; |
| 195 | |
| 196 | return pci_read_config16(dev, PMC_ACPI_BASE) & 0xfff8; |
| 197 | } |
| 198 | |
| 199 | uint16_t get_tcobase(void) |
| 200 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 201 | #ifdef __SIMPLE_DEVICE__ |
| 202 | pci_devfn_t dev; |
| 203 | #else |
| 204 | struct device *dev; |
| 205 | #endif |
| 206 | dev = get_smbus_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 207 | |
| 208 | if (!dev) |
| 209 | return 0; |
| 210 | |
| 211 | return pci_read_config16(dev, TCOBASE) & MASK_TCOBASE; |
| 212 | } |
| 213 | |
| 214 | void mmio_andthenor32(void *addr, uint32_t val2and, uint32_t val2or) |
| 215 | { |
| 216 | uint32_t reg32; |
| 217 | |
| 218 | reg32 = read32(addr); |
| 219 | reg32 &= (uint32_t)val2and; |
| 220 | reg32 |= (uint32_t)val2or; |
| 221 | write32(addr, reg32); |
| 222 | } |
| 223 | |
| 224 | uint8_t silicon_stepping(void) |
| 225 | { |
| 226 | uint8_t revision_id; |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 227 | #ifdef __SIMPLE_DEVICE__ |
| 228 | pci_devfn_t dev; |
| 229 | #else |
| 230 | struct device *dev; |
| 231 | #endif |
| 232 | dev = get_lpc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 233 | |
| 234 | if (!dev) |
| 235 | return 0; |
| 236 | |
| 237 | revision_id = pci_read_config8(dev, PCI_REVISION_ID); |
| 238 | |
| 239 | return revision_id; |
| 240 | } |
| 241 | |
| 242 | void *memcpy_s(void *dest, const void *src, size_t n) |
| 243 | { |
| 244 | uint8_t *dp; |
| 245 | const uint8_t *sp; |
| 246 | |
| 247 | dp = (uint8_t *)dest; |
| 248 | sp = (uint8_t *)src; |
| 249 | |
| 250 | if (!n) |
| 251 | return dest; |
| 252 | |
| 253 | if (n > UINT32_MAX) |
| 254 | return dest; |
| 255 | |
| 256 | if (!dp) |
| 257 | return dest; |
| 258 | |
| 259 | if (!sp) |
| 260 | return dest; |
| 261 | |
| 262 | /* |
| 263 | * overlap is undefined behavior, do not allow |
| 264 | */ |
| 265 | if (((dp > sp) && (dp < (sp + n))) || ((sp > dp) && (sp < (dp + n)))) |
| 266 | return dest; |
| 267 | |
| 268 | /* |
| 269 | * now perform the copy |
| 270 | */ |
| 271 | |
| 272 | /* Original memcpy() function */ |
| 273 | unsigned long d0, d1, d2; |
| 274 | |
| 275 | asm volatile( |
Patrick Rudolph | adcf782 | 2020-08-27 20:50:18 +0200 | [diff] [blame] | 276 | #if ENV_X86_64 |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 277 | "rep ; movsd\n\t" |
| 278 | "mov %4,%%rcx\n\t" |
| 279 | #else |
| 280 | "rep ; movsl\n\t" |
| 281 | "movl %4,%%ecx\n\t" |
| 282 | #endif |
| 283 | "rep ; movsb\n\t" |
| 284 | : "=&c"(d0), "=&D"(d1), "=&S"(d2) |
| 285 | : "0"(n >> 2), "g"(n & 3), "1"(dest), "2"(src) |
| 286 | : "memory"); |
| 287 | |
| 288 | return dest; |
| 289 | } |