1 /* 2 * Copyright 2014 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <command.h> 9 #include <i2c.h> 10 #include <netdev.h> 11 #include <linux/compiler.h> 12 #include <asm/mmu.h> 13 #include <asm/processor.h> 14 #include <asm/immap_85xx.h> 15 #include <asm/fsl_law.h> 16 #include <asm/fsl_serdes.h> 17 #include <asm/fsl_liodn.h> 18 #include <fm_eth.h> 19 #include "t102xrdb.h" 20 #ifdef CONFIG_TARGET_T1024RDB 21 #include "cpld.h" 22 #elif defined(CONFIG_TARGET_T1023RDB) 23 #include <i2c.h> 24 #include <mmc.h> 25 #endif 26 #include "../common/sleep.h" 27 28 DECLARE_GLOBAL_DATA_PTR; 29 30 #ifdef CONFIG_TARGET_T1023RDB 31 enum { 32 GPIO1_SD_SEL = 0x00020000, /* GPIO1_14, 0: eMMC, 1:SD/MMC */ 33 GPIO1_EMMC_SEL, 34 GPIO3_GET_VERSION, /* GPIO3_4/5, 00:RevB, 01: RevC */ 35 GPIO3_BRD_VER_MASK = 0x0c000000, 36 GPIO3_OFFSET = 0x2000, 37 I2C_GET_BANK, 38 I2C_SET_BANK0, 39 I2C_SET_BANK4, 40 }; 41 #endif 42 43 int checkboard(void) 44 { 45 struct cpu_type *cpu = gd->arch.cpu; 46 static const char *freq[3] = {"100.00MHZ", "125.00MHz", "156.25MHZ"}; 47 ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 48 u32 srds_s1; 49 50 srds_s1 = in_be32(&gur->rcwsr[4]) & FSL_CORENET2_RCWSR4_SRDS1_PRTCL; 51 srds_s1 >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT; 52 53 printf("Board: %sRDB, ", cpu->name); 54 #if defined(CONFIG_TARGET_T1024RDB) 55 printf("Board rev: 0x%02x CPLD ver: 0x%02x, ", 56 CPLD_READ(hw_ver), CPLD_READ(sw_ver)); 57 #elif defined(CONFIG_TARGET_T1023RDB) 58 printf("Rev%c, ", t1023rdb_ctrl(GPIO3_GET_VERSION) + 'B'); 59 #endif 60 printf("boot from "); 61 62 #ifdef CONFIG_SDCARD 63 puts("SD/MMC\n"); 64 #elif CONFIG_SPIFLASH 65 puts("SPI\n"); 66 #elif defined(CONFIG_TARGET_T1024RDB) 67 u8 reg; 68 69 reg = CPLD_READ(flash_csr); 70 71 if (reg & CPLD_BOOT_SEL) { 72 puts("NAND\n"); 73 } else { 74 reg = ((reg & CPLD_LBMAP_MASK) >> CPLD_LBMAP_SHIFT); 75 printf("NOR vBank%d\n", reg); 76 } 77 #elif defined(CONFIG_TARGET_T1023RDB) 78 #ifdef CONFIG_NAND 79 puts("NAND\n"); 80 #else 81 printf("NOR vBank%d\n", t1023rdb_ctrl(I2C_GET_BANK)); 82 #endif 83 #endif 84 85 puts("SERDES Reference Clocks:\n"); 86 if (srds_s1 == 0x95) 87 printf("SD1_CLK1=%s, SD1_CLK2=%s\n", freq[2], freq[0]); 88 else 89 printf("SD1_CLK1=%s, SD1_CLK2=%s\n", freq[0], freq[1]); 90 91 return 0; 92 } 93 94 #ifdef CONFIG_TARGET_T1024RDB 95 static void board_mux_lane(void) 96 { 97 ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 98 u32 srds_prtcl_s1; 99 u8 reg = CPLD_READ(misc_ctl_status); 100 101 srds_prtcl_s1 = in_be32(&gur->rcwsr[4]) & 102 FSL_CORENET2_RCWSR4_SRDS1_PRTCL; 103 srds_prtcl_s1 >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT; 104 105 if (srds_prtcl_s1 == 0x95) { 106 /* Route Lane B to PCIE */ 107 CPLD_WRITE(misc_ctl_status, reg & ~CPLD_PCIE_SGMII_MUX); 108 } else { 109 /* Route Lane B to SGMII */ 110 CPLD_WRITE(misc_ctl_status, reg | CPLD_PCIE_SGMII_MUX); 111 } 112 CPLD_WRITE(boot_override, CPLD_OVERRIDE_MUX_EN); 113 } 114 #endif 115 116 int board_early_init_f(void) 117 { 118 #if defined(CONFIG_DEEP_SLEEP) 119 if (is_warm_boot()) 120 fsl_dp_disable_console(); 121 #endif 122 123 return 0; 124 } 125 126 int board_early_init_r(void) 127 { 128 #ifdef CONFIG_SYS_FLASH_BASE 129 const unsigned int flashbase = CONFIG_SYS_FLASH_BASE; 130 int flash_esel = find_tlb_idx((void *)flashbase, 1); 131 /* 132 * Remap Boot flash region to caching-inhibited 133 * so that flash can be erased properly. 134 */ 135 136 /* Flush d-cache and invalidate i-cache of any FLASH data */ 137 flush_dcache(); 138 invalidate_icache(); 139 if (flash_esel == -1) { 140 /* very unlikely unless something is messed up */ 141 puts("Error: Could not find TLB for FLASH BASE\n"); 142 flash_esel = 2; /* give our best effort to continue */ 143 } else { 144 /* invalidate existing TLB entry for flash + promjet */ 145 disable_tlb(flash_esel); 146 } 147 148 set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS, 149 MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 150 0, flash_esel, BOOKE_PAGESZ_256M, 1); 151 #endif 152 153 #ifdef CONFIG_TARGET_T1024RDB 154 board_mux_lane(); 155 #endif 156 157 return 0; 158 } 159 160 unsigned long get_board_sys_clk(void) 161 { 162 return CONFIG_SYS_CLK_FREQ; 163 } 164 165 unsigned long get_board_ddr_clk(void) 166 { 167 return CONFIG_DDR_CLK_FREQ; 168 } 169 170 int misc_init_r(void) 171 { 172 return 0; 173 } 174 175 int ft_board_setup(void *blob, bd_t *bd) 176 { 177 phys_addr_t base; 178 phys_size_t size; 179 180 ft_cpu_setup(blob, bd); 181 182 base = getenv_bootm_low(); 183 size = getenv_bootm_size(); 184 185 fdt_fixup_memory(blob, (u64)base, (u64)size); 186 187 #ifdef CONFIG_PCI 188 pci_of_setup(blob, bd); 189 #endif 190 191 fdt_fixup_liodn(blob); 192 fsl_fdt_fixup_dr_usb(blob, bd); 193 194 #ifdef CONFIG_SYS_DPAA_FMAN 195 fdt_fixup_fman_ethernet(blob); 196 fdt_fixup_board_enet(blob); 197 #endif 198 199 #ifdef CONFIG_TARGET_T1023RDB 200 if (t1023rdb_ctrl(GPIO3_GET_VERSION) > 0) 201 fdt_enable_nor(blob); 202 #endif 203 204 return 0; 205 } 206 207 #ifdef CONFIG_TARGET_T1023RDB 208 /* Enable NOR flash for RevC */ 209 static void fdt_enable_nor(void *blob) 210 { 211 int nodeoff = fdt_node_offset_by_compatible(blob, 0, "cfi-flash"); 212 213 if (nodeoff >= 0) 214 fdt_status_okay(blob, nodeoff); 215 else 216 printf("WARNING unable to set status for NOR\n"); 217 } 218 219 int board_mmc_getcd(struct mmc *mmc) 220 { 221 ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); 222 u32 val = in_be32(&pgpio->gpdat); 223 224 /* GPIO1_14, 0: eMMC, 1: SD/MMC */ 225 val &= GPIO1_SD_SEL; 226 227 return val ? -1 : 1; 228 } 229 230 int board_mmc_getwp(struct mmc *mmc) 231 { 232 ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); 233 u32 val = in_be32(&pgpio->gpdat); 234 235 val &= GPIO1_SD_SEL; 236 237 return val ? -1 : 0; 238 } 239 240 static u32 t1023rdb_ctrl(u32 ctrl_type) 241 { 242 ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); 243 ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 244 u32 val, orig_bus = i2c_get_bus_num(); 245 u8 tmp; 246 247 switch (ctrl_type) { 248 case GPIO1_SD_SEL: 249 val = in_be32(&pgpio->gpdat); 250 val |= GPIO1_SD_SEL; 251 out_be32(&pgpio->gpdat, val); 252 setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL); 253 break; 254 case GPIO1_EMMC_SEL: 255 val = in_be32(&pgpio->gpdat); 256 val &= ~GPIO1_SD_SEL; 257 out_be32(&pgpio->gpdat, val); 258 setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL); 259 break; 260 case GPIO3_GET_VERSION: 261 pgpio = (ccsr_gpio_t *)(CONFIG_SYS_MPC85xx_GPIO_ADDR 262 + GPIO3_OFFSET); 263 val = in_be32(&pgpio->gpdat); 264 val = ((val & GPIO3_BRD_VER_MASK) >> 26) & 0x3; 265 if (val == 0x3) /* GPIO3_4/5 not used on RevB */ 266 val = 0; 267 return val; 268 case I2C_GET_BANK: 269 i2c_set_bus_num(I2C_PCA6408_BUS_NUM); 270 i2c_read(I2C_PCA6408_ADDR, 0, 1, &tmp, 1); 271 tmp &= 0x7; 272 tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2); 273 i2c_set_bus_num(orig_bus); 274 return tmp; 275 case I2C_SET_BANK0: 276 i2c_set_bus_num(I2C_PCA6408_BUS_NUM); 277 tmp = 0x0; 278 i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1); 279 tmp = 0xf8; 280 i2c_write(I2C_PCA6408_ADDR, 3, 1, &tmp, 1); 281 /* asserting HRESET_REQ */ 282 out_be32(&gur->rstcr, 0x2); 283 break; 284 case I2C_SET_BANK4: 285 i2c_set_bus_num(I2C_PCA6408_BUS_NUM); 286 tmp = 0x1; 287 i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1); 288 tmp = 0xf8; 289 i2c_write(I2C_PCA6408_ADDR, 3, 1, &tmp, 1); 290 out_be32(&gur->rstcr, 0x2); 291 break; 292 default: 293 break; 294 } 295 return 0; 296 } 297 298 static int switch_cmd(cmd_tbl_t *cmdtp, int flag, int argc, 299 char * const argv[]) 300 { 301 if (argc < 2) 302 return CMD_RET_USAGE; 303 if (!strcmp(argv[1], "bank0")) 304 t1023rdb_ctrl(I2C_SET_BANK0); 305 else if (!strcmp(argv[1], "bank4") || !strcmp(argv[1], "altbank")) 306 t1023rdb_ctrl(I2C_SET_BANK4); 307 else if (!strcmp(argv[1], "sd")) 308 t1023rdb_ctrl(GPIO1_SD_SEL); 309 else if (!strcmp(argv[1], "emmc")) 310 t1023rdb_ctrl(GPIO1_EMMC_SEL); 311 else 312 return CMD_RET_USAGE; 313 return 0; 314 } 315 316 U_BOOT_CMD( 317 switch, 2, 0, switch_cmd, 318 "for bank0/bank4/sd/emmc switch control in runtime", 319 "command (e.g. switch bank4)" 320 ); 321 #endif 322