1 /* 2 * (C) Copyright 2013 Keymile AG 3 * Valentin Longchamp <valentin.longchamp@keymile.com> 4 * 5 * Copyright 2011,2012 Freescale Semiconductor, Inc. 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <command.h> 12 #include <netdev.h> 13 #include <linux/compiler.h> 14 #include <asm/mmu.h> 15 #include <asm/processor.h> 16 #include <asm/cache.h> 17 #include <asm/immap_85xx.h> 18 #include <asm/fsl_law.h> 19 #include <asm/fsl_serdes.h> 20 #include <asm/fsl_portals.h> 21 #include <asm/fsl_liodn.h> 22 #include <fm_eth.h> 23 24 #include "../common/common.h" 25 #include "kmp204x.h" 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 int checkboard(void) 30 { 31 printf("Board: Keymile %s\n", CONFIG_KM_BOARD_NAME); 32 33 return 0; 34 } 35 36 /* I2C deblocking uses the algorithm defined in board/keymile/common/common.c 37 * 2 dedicated QRIO GPIOs externally pull the SCL and SDA lines 38 * For I2C only the low state is activly driven and high state is pulled-up 39 * by a resistor. Therefore the deblock GPIOs are used 40 * -> as an active output to drive a low state 41 * -> as an open-drain input to have a pulled-up high state 42 */ 43 44 /* QRIO GPIOs used for deblocking */ 45 #define DEBLOCK_PORT1 GPIO_A 46 #define DEBLOCK_SCL1 20 47 #define DEBLOCK_SDA1 21 48 49 /* By default deblock GPIOs are floating */ 50 static void i2c_deblock_gpio_cfg(void) 51 { 52 /* set I2C bus 1 deblocking GPIOs input, but 0 value for open drain */ 53 qrio_gpio_direction_input(DEBLOCK_PORT1, DEBLOCK_SCL1); 54 qrio_gpio_direction_input(DEBLOCK_PORT1, DEBLOCK_SDA1); 55 56 qrio_set_gpio(DEBLOCK_PORT1, DEBLOCK_SCL1, 0); 57 qrio_set_gpio(DEBLOCK_PORT1, DEBLOCK_SDA1, 0); 58 } 59 60 void set_sda(int state) 61 { 62 qrio_set_opendrain_gpio(DEBLOCK_PORT1, DEBLOCK_SDA1, state); 63 } 64 65 void set_scl(int state) 66 { 67 qrio_set_opendrain_gpio(DEBLOCK_PORT1, DEBLOCK_SCL1, state); 68 } 69 70 int get_sda(void) 71 { 72 return qrio_get_gpio(DEBLOCK_PORT1, DEBLOCK_SDA1); 73 } 74 75 int get_scl(void) 76 { 77 return qrio_get_gpio(DEBLOCK_PORT1, DEBLOCK_SCL1); 78 } 79 80 81 #define ZL30158_RST 8 82 #define BFTIC4_RST 0 83 #define RSTRQSR1_WDT_RR 0x00200000 84 #define RSTRQSR1_SW_RR 0x00100000 85 86 int board_early_init_f(void) 87 { 88 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 89 bool cpuwd_flag = false; 90 91 /* configure mode for uP reset request */ 92 qrio_uprstreq(UPREQ_CORE_RST); 93 94 /* board only uses the DDR_MCK0, so disable the DDR_MCK1/2/3 */ 95 setbits_be32(&gur->ddrclkdr, 0x001f000f); 96 97 /* set reset reason according CPU register */ 98 if ((gur->rstrqsr1 & (RSTRQSR1_WDT_RR | RSTRQSR1_SW_RR)) == 99 RSTRQSR1_WDT_RR) 100 cpuwd_flag = true; 101 102 qrio_cpuwd_flag(cpuwd_flag); 103 /* clear CPU bits by writing 1 */ 104 setbits_be32(&gur->rstrqsr1, RSTRQSR1_WDT_RR | RSTRQSR1_SW_RR); 105 106 /* set the BFTIC's prstcfg to reset at power-up and unit reset only */ 107 qrio_prstcfg(BFTIC4_RST, PRSTCFG_POWUP_UNIT_RST); 108 /* and enable WD on it */ 109 qrio_wdmask(BFTIC4_RST, true); 110 111 /* set the ZL30138's prstcfg to reset at power-up only */ 112 qrio_prstcfg(ZL30158_RST, PRSTCFG_POWUP_RST); 113 /* and take it out of reset as soon as possible (needed for Hooper) */ 114 qrio_prst(ZL30158_RST, false, false); 115 116 return 0; 117 } 118 119 int board_early_init_r(void) 120 { 121 int ret = 0; 122 /* Flush d-cache and invalidate i-cache of any FLASH data */ 123 flush_dcache(); 124 invalidate_icache(); 125 126 set_liodns(); 127 setup_portals(); 128 129 ret = trigger_fpga_config(); 130 if (ret) 131 printf("error triggering PCIe FPGA config\n"); 132 133 /* enable the Unit LED (red) & Boot LED (on) */ 134 qrio_set_leds(); 135 136 /* enable Application Buffer */ 137 qrio_enable_app_buffer(); 138 139 return ret; 140 } 141 142 unsigned long get_board_sys_clk(unsigned long dummy) 143 { 144 return 66666666; 145 } 146 147 #define ETH_FRONT_PHY_RST 15 148 #define QSFP2_RST 11 149 #define QSFP1_RST 10 150 #define ZL30343_RST 9 151 152 int misc_init_f(void) 153 { 154 /* configure QRIO pis for i2c deblocking */ 155 i2c_deblock_gpio_cfg(); 156 157 /* configure the front phy's prstcfg and take it out of reset */ 158 qrio_prstcfg(ETH_FRONT_PHY_RST, PRSTCFG_POWUP_UNIT_CORE_RST); 159 qrio_prst(ETH_FRONT_PHY_RST, false, false); 160 161 /* set the ZL30343 prstcfg to reset at power-up only */ 162 qrio_prstcfg(ZL30343_RST, PRSTCFG_POWUP_RST); 163 /* and enable the WD on it */ 164 qrio_wdmask(ZL30343_RST, true); 165 166 /* set the QSFPs' prstcfg to reset at power-up and unit rst only */ 167 qrio_prstcfg(QSFP1_RST, PRSTCFG_POWUP_UNIT_RST); 168 qrio_prstcfg(QSFP2_RST, PRSTCFG_POWUP_UNIT_RST); 169 170 /* and enable the WD on them */ 171 qrio_wdmask(QSFP1_RST, true); 172 qrio_wdmask(QSFP2_RST, true); 173 174 return 0; 175 } 176 177 #define NUM_SRDS_BANKS 2 178 179 int misc_init_r(void) 180 { 181 serdes_corenet_t *regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; 182 u32 expected[NUM_SRDS_BANKS] = {SRDS_PLLCR0_RFCK_SEL_100, 183 SRDS_PLLCR0_RFCK_SEL_125}; 184 unsigned int i; 185 186 /* check SERDES reference clocks */ 187 for (i = 0; i < NUM_SRDS_BANKS; i++) { 188 u32 actual = in_be32(®s->bank[i].pllcr0); 189 actual &= SRDS_PLLCR0_RFCK_SEL_MASK; 190 if (actual != expected[i]) { 191 printf("Warning: SERDES bank %u expects reference \ 192 clock %sMHz, but actual is %sMHz\n", i + 1, 193 serdes_clock_to_string(expected[i]), 194 serdes_clock_to_string(actual)); 195 } 196 } 197 198 return 0; 199 } 200 201 #if defined(CONFIG_HUSH_INIT_VAR) 202 int hush_init_var(void) 203 { 204 ivm_read_eeprom(); 205 return 0; 206 } 207 #endif 208 209 #if defined(CONFIG_LAST_STAGE_INIT) 210 211 int last_stage_init(void) 212 { 213 #if defined(CONFIG_KMCOGE4) 214 /* on KMCOGE4, the BFTIC4 is on the LBAPP2 */ 215 struct bfticu_iomap *bftic4 = 216 (struct bfticu_iomap *)CONFIG_SYS_LBAPP2_BASE; 217 u8 dip_switch = in_8((u8 *)&(bftic4->mswitch)) & BFTICU_DIPSWITCH_MASK; 218 219 if (dip_switch != 0) { 220 /* start bootloader */ 221 puts("DIP: Enabled\n"); 222 setenv("actual_bank", "0"); 223 } 224 #endif 225 set_km_env(); 226 227 return 0; 228 } 229 #endif 230 231 #ifdef CONFIG_SYS_DPAA_FMAN 232 void fdt_fixup_fman_mac_addresses(void *blob) 233 { 234 int node, i, ret; 235 char *tmp, *end; 236 unsigned char mac_addr[6]; 237 238 /* get the mac addr from env */ 239 tmp = getenv("ethaddr"); 240 if (!tmp) { 241 printf("ethaddr env variable not defined\n"); 242 return; 243 } 244 for (i = 0; i < 6; i++) { 245 mac_addr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0; 246 if (tmp) 247 tmp = (*end) ? end+1 : end; 248 } 249 250 /* find the correct fdt ethernet path and correct it */ 251 node = fdt_path_offset(blob, "/soc/fman/ethernet@e8000"); 252 if (node < 0) { 253 printf("no /soc/fman/ethernet path offset\n"); 254 return; 255 } 256 ret = fdt_setprop(blob, node, "local-mac-address", &mac_addr, 6); 257 if (ret) { 258 printf("error setting local-mac-address property\n"); 259 return; 260 } 261 } 262 #endif 263 264 int ft_board_setup(void *blob, bd_t *bd) 265 { 266 phys_addr_t base; 267 phys_size_t size; 268 269 ft_cpu_setup(blob, bd); 270 271 base = getenv_bootm_low(); 272 size = getenv_bootm_size(); 273 274 fdt_fixup_memory(blob, (u64)base, (u64)size); 275 276 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) 277 fdt_fixup_dr_usb(blob, bd); 278 #endif 279 280 #ifdef CONFIG_PCI 281 pci_of_setup(blob, bd); 282 #endif 283 284 fdt_fixup_liodn(blob); 285 #ifdef CONFIG_SYS_DPAA_FMAN 286 fdt_fixup_fman_ethernet(blob); 287 fdt_fixup_fman_mac_addresses(blob); 288 #endif 289 290 return 0; 291 } 292 293 #if defined(CONFIG_POST) 294 295 /* DIC26_SELFTEST GPIO used to start factory test sw */ 296 #define SELFTEST_PORT GPIO_A 297 #define SELFTEST_PIN 31 298 299 int post_hotkeys_pressed(void) 300 { 301 qrio_gpio_direction_input(SELFTEST_PORT, SELFTEST_PIN); 302 return qrio_get_gpio(SELFTEST_PORT, SELFTEST_PIN); 303 } 304 #endif 305