1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2012 Renesas Solutions Corp. 4 */ 5 6 #include <common.h> 7 #include <environment.h> 8 #include <malloc.h> 9 #include <asm/processor.h> 10 #include <asm/io.h> 11 #include <asm/mmc.h> 12 #include <spi.h> 13 #include <spi_flash.h> 14 15 int checkboard(void) 16 { 17 puts("BOARD: SH7753 EVB\n"); 18 19 return 0; 20 } 21 22 static void init_gpio(void) 23 { 24 struct gpio_regs *gpio = GPIO_BASE; 25 struct sermux_regs *sermux = SERMUX_BASE; 26 27 /* GPIO */ 28 writew(0x0000, &gpio->pacr); /* GETHER */ 29 writew(0x0001, &gpio->pbcr); /* INTC */ 30 writew(0x0000, &gpio->pccr); /* PWMU, INTC */ 31 writew(0x0000, &gpio->pdcr); /* SPI0 */ 32 writew(0xeaff, &gpio->pecr); /* GPIO */ 33 writew(0x0000, &gpio->pfcr); /* WDT */ 34 writew(0x0004, &gpio->pgcr); /* SPI0, GETHER MDIO gate(PTG1) */ 35 writew(0x0000, &gpio->phcr); /* SPI1 */ 36 writew(0x0000, &gpio->picr); /* SDHI */ 37 writew(0x0000, &gpio->pjcr); /* SCIF4 */ 38 writew(0x0003, &gpio->pkcr); /* SerMux */ 39 writew(0x0000, &gpio->plcr); /* SerMux */ 40 writew(0x0000, &gpio->pmcr); /* RIIC */ 41 writew(0x0000, &gpio->pncr); /* USB, SGPIO */ 42 writew(0x0000, &gpio->pocr); /* SGPIO */ 43 writew(0xd555, &gpio->pqcr); /* GPIO */ 44 writew(0x0000, &gpio->prcr); /* RIIC */ 45 writew(0x0000, &gpio->pscr); /* RIIC */ 46 writew(0x0000, &gpio->ptcr); /* STATUS */ 47 writeb(0x00, &gpio->pudr); 48 writew(0x5555, &gpio->pucr); /* Debug LED */ 49 writew(0x0000, &gpio->pvcr); /* RSPI */ 50 writew(0x0000, &gpio->pwcr); /* EVC */ 51 writew(0x0000, &gpio->pxcr); /* LBSC */ 52 writew(0x0000, &gpio->pycr); /* LBSC */ 53 writew(0x0000, &gpio->pzcr); /* eMMC */ 54 writew(0xfe00, &gpio->psel0); 55 writew(0x0000, &gpio->psel1); 56 writew(0x3000, &gpio->psel2); 57 writew(0xff00, &gpio->psel3); 58 writew(0x771f, &gpio->psel4); 59 writew(0x0ffc, &gpio->psel5); 60 writew(0x00ff, &gpio->psel6); 61 writew(0xfc00, &gpio->psel7); 62 63 writeb(0x10, &sermux->smr0); /* SMR0: SerMux mode 0 */ 64 } 65 66 static void init_usb_phy(void) 67 { 68 struct usb_common_regs *common0 = USB0_COMMON_BASE; 69 struct usb_common_regs *common1 = USB1_COMMON_BASE; 70 struct usb0_phy_regs *phy = USB0_PHY_BASE; 71 struct usb1_port_regs *port = USB1_PORT_BASE; 72 struct usb1_alignment_regs *align = USB1_ALIGNMENT_BASE; 73 74 writew(0x0100, &phy->reset); /* set reset */ 75 /* port0 = USB0, port1 = USB1 */ 76 writew(0x0002, &phy->portsel); 77 writel(0x0001, &port->port1sel); /* port1 = Host */ 78 writew(0x0111, &phy->reset); /* clear reset */ 79 80 writew(0x4000, &common0->suspmode); 81 writew(0x4000, &common1->suspmode); 82 83 #if defined(__LITTLE_ENDIAN) 84 writel(0x00000000, &align->ehcidatac); 85 writel(0x00000000, &align->ohcidatac); 86 #endif 87 } 88 89 static void init_gether_mdio(void) 90 { 91 struct gpio_regs *gpio = GPIO_BASE; 92 93 writew(readw(&gpio->pgcr) | 0x0004, &gpio->pgcr); 94 writeb(readb(&gpio->pgdr) | 0x02, &gpio->pgdr); /* Use ET0-MDIO */ 95 } 96 97 static void set_mac_to_sh_giga_eth_register(int channel, char *mac_string) 98 { 99 struct ether_mac_regs *ether; 100 unsigned char mac[6]; 101 unsigned long val; 102 103 eth_parse_enetaddr(mac_string, mac); 104 105 if (!channel) 106 ether = GETHER0_MAC_BASE; 107 else 108 ether = GETHER1_MAC_BASE; 109 110 val = (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3]; 111 writel(val, ðer->mahr); 112 val = (mac[4] << 8) | mac[5]; 113 writel(val, ðer->malr); 114 } 115 116 #if defined(CONFIG_SH_32BIT) 117 /***************************************************************** 118 * This PMB must be set on this timing. The lowlevel_init is run on 119 * Area 0(phys 0x00000000), so we have to map it. 120 * 121 * The new PMB table is following: 122 * ent virt phys v sz c wt 123 * 0 0xa0000000 0x40000000 1 128M 0 1 124 * 1 0xa8000000 0x48000000 1 128M 0 1 125 * 2 0xb0000000 0x50000000 1 128M 0 1 126 * 3 0xb8000000 0x58000000 1 128M 0 1 127 * 4 0x80000000 0x40000000 1 128M 1 1 128 * 5 0x88000000 0x48000000 1 128M 1 1 129 * 6 0x90000000 0x50000000 1 128M 1 1 130 * 7 0x98000000 0x58000000 1 128M 1 1 131 */ 132 static void set_pmb_on_board_init(void) 133 { 134 struct mmu_regs *mmu = MMU_BASE; 135 136 /* clear ITLB */ 137 writel(0x00000004, &mmu->mmucr); 138 139 /* delete PMB for SPIBOOT */ 140 writel(0, PMB_ADDR_BASE(0)); 141 writel(0, PMB_DATA_BASE(0)); 142 143 /* add PMB for SDRAM(0x40000000 - 0x47ffffff) */ 144 /* ppn ub v s1 s0 c wt */ 145 writel(mk_pmb_addr_val(0xa0), PMB_ADDR_BASE(0)); 146 writel(mk_pmb_data_val(0x40, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(0)); 147 writel(mk_pmb_addr_val(0xb0), PMB_ADDR_BASE(2)); 148 writel(mk_pmb_data_val(0x50, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(2)); 149 writel(mk_pmb_addr_val(0xb8), PMB_ADDR_BASE(3)); 150 writel(mk_pmb_data_val(0x58, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(3)); 151 writel(mk_pmb_addr_val(0x80), PMB_ADDR_BASE(4)); 152 writel(mk_pmb_data_val(0x40, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(4)); 153 writel(mk_pmb_addr_val(0x90), PMB_ADDR_BASE(6)); 154 writel(mk_pmb_data_val(0x50, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(6)); 155 writel(mk_pmb_addr_val(0x98), PMB_ADDR_BASE(7)); 156 writel(mk_pmb_data_val(0x58, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(7)); 157 } 158 #endif 159 160 int board_init(void) 161 { 162 struct gether_control_regs *gether = GETHER_CONTROL_BASE; 163 164 init_gpio(); 165 #if defined(CONFIG_SH_32BIT) 166 set_pmb_on_board_init(); 167 #endif 168 169 /* Sets TXnDLY to B'010 */ 170 writel(0x00000202, &gether->gbecont); 171 172 init_usb_phy(); 173 init_gether_mdio(); 174 175 return 0; 176 } 177 178 int board_mmc_init(bd_t *bis) 179 { 180 struct gpio_regs *gpio = GPIO_BASE; 181 182 writew(readw(&gpio->pgcr) | 0x0040, &gpio->pgcr); 183 writeb(readb(&gpio->pgdr) & ~0x08, &gpio->pgdr); /* Reset */ 184 udelay(1); 185 writeb(readb(&gpio->pgdr) | 0x08, &gpio->pgdr); /* Release reset */ 186 udelay(200); 187 188 return mmcif_mmc_init(); 189 } 190 191 static int get_sh_eth_mac_raw(unsigned char *buf, int size) 192 { 193 struct spi_flash *spi; 194 int ret; 195 196 spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); 197 if (spi == NULL) { 198 printf("%s: spi_flash probe failed.\n", __func__); 199 return 1; 200 } 201 202 ret = spi_flash_read(spi, SH7753EVB_ETHERNET_MAC_BASE, size, buf); 203 if (ret) { 204 printf("%s: spi_flash read failed.\n", __func__); 205 spi_flash_free(spi); 206 return 1; 207 } 208 spi_flash_free(spi); 209 210 return 0; 211 } 212 213 static int get_sh_eth_mac(int channel, char *mac_string, unsigned char *buf) 214 { 215 memcpy(mac_string, &buf[channel * (SH7753EVB_ETHERNET_MAC_SIZE + 1)], 216 SH7753EVB_ETHERNET_MAC_SIZE); 217 mac_string[SH7753EVB_ETHERNET_MAC_SIZE] = 0x00; /* terminate */ 218 219 return 0; 220 } 221 222 static void init_ethernet_mac(void) 223 { 224 char mac_string[64]; 225 char env_string[64]; 226 int i; 227 unsigned char *buf; 228 229 buf = malloc(256); 230 if (!buf) { 231 printf("%s: malloc failed.\n", __func__); 232 return; 233 } 234 get_sh_eth_mac_raw(buf, 256); 235 236 /* Gigabit Ethernet */ 237 for (i = 0; i < SH7753EVB_ETHERNET_NUM_CH; i++) { 238 get_sh_eth_mac(i, mac_string, buf); 239 if (i == 0) 240 env_set("ethaddr", mac_string); 241 else { 242 sprintf(env_string, "eth%daddr", i); 243 env_set(env_string, mac_string); 244 } 245 set_mac_to_sh_giga_eth_register(i, mac_string); 246 } 247 248 free(buf); 249 } 250 251 int board_late_init(void) 252 { 253 init_ethernet_mac(); 254 255 return 0; 256 } 257 258 int do_write_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 259 { 260 int i, ret; 261 char mac_string[256]; 262 struct spi_flash *spi; 263 unsigned char *buf; 264 265 if (argc != 3) { 266 buf = malloc(256); 267 if (!buf) { 268 printf("%s: malloc failed.\n", __func__); 269 return 1; 270 } 271 272 get_sh_eth_mac_raw(buf, 256); 273 274 /* print current MAC address */ 275 for (i = 0; i < SH7753EVB_ETHERNET_NUM_CH; i++) { 276 get_sh_eth_mac(i, mac_string, buf); 277 printf("GETHERC ch%d = %s\n", i, mac_string); 278 } 279 free(buf); 280 return 0; 281 } 282 283 /* new setting */ 284 memset(mac_string, 0xff, sizeof(mac_string)); 285 sprintf(mac_string, "%s\t%s", 286 argv[1], argv[2]); 287 288 /* write MAC data to SPI rom */ 289 spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); 290 if (!spi) { 291 printf("%s: spi_flash probe failed.\n", __func__); 292 return 1; 293 } 294 295 ret = spi_flash_erase(spi, SH7753EVB_ETHERNET_MAC_BASE_SPI, 296 SH7753EVB_SPI_SECTOR_SIZE); 297 if (ret) { 298 printf("%s: spi_flash erase failed.\n", __func__); 299 return 1; 300 } 301 302 ret = spi_flash_write(spi, SH7753EVB_ETHERNET_MAC_BASE_SPI, 303 sizeof(mac_string), mac_string); 304 if (ret) { 305 printf("%s: spi_flash write failed.\n", __func__); 306 spi_flash_free(spi); 307 return 1; 308 } 309 spi_flash_free(spi); 310 311 puts("The writing of the MAC address to SPI ROM was completed.\n"); 312 313 return 0; 314 } 315 316 U_BOOT_CMD( 317 write_mac, 3, 1, do_write_mac, 318 "write MAC address for GETHERC", 319 "[GETHERC ch0] [GETHERC ch1]\n" 320 ); 321