1 /* 2 * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com> 3 * Copyright 2007 Embedded Specialties, Inc. 4 * Joe Hamman joe.hamman@embeddedspecialties.com 5 * 6 * Copyright 2004 Freescale Semiconductor. 7 * Jeff Brown 8 * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) 9 * 10 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> 11 * 12 * SPDX-License-Identifier: GPL-2.0+ 13 */ 14 15 #include <common.h> 16 #include <command.h> 17 #include <pci.h> 18 #include <asm/processor.h> 19 #include <asm/immap_86xx.h> 20 #include <asm/fsl_pci.h> 21 #include <fsl_ddr_sdram.h> 22 #include <asm/fsl_serdes.h> 23 #include <libfdt.h> 24 #include <fdt_support.h> 25 26 long int fixed_sdram (void); 27 28 int board_early_init_f (void) 29 { 30 return 0; 31 } 32 33 int checkboard (void) 34 { 35 puts ("Board: Wind River SBC8641D\n"); 36 37 return 0; 38 } 39 40 phys_size_t initdram (int board_type) 41 { 42 long dram_size = 0; 43 44 #if defined(CONFIG_SPD_EEPROM) 45 dram_size = fsl_ddr_sdram(); 46 #else 47 dram_size = fixed_sdram (); 48 #endif 49 50 debug (" DDR: "); 51 return dram_size; 52 } 53 54 #if defined(CONFIG_SYS_DRAM_TEST) 55 int testdram (void) 56 { 57 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START; 58 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END; 59 uint *p; 60 61 puts ("SDRAM test phase 1:\n"); 62 for (p = pstart; p < pend; p++) 63 *p = 0xaaaaaaaa; 64 65 for (p = pstart; p < pend; p++) { 66 if (*p != 0xaaaaaaaa) { 67 printf ("SDRAM test fails at: %08x\n", (uint) p); 68 return 1; 69 } 70 } 71 72 puts ("SDRAM test phase 2:\n"); 73 for (p = pstart; p < pend; p++) 74 *p = 0x55555555; 75 76 for (p = pstart; p < pend; p++) { 77 if (*p != 0x55555555) { 78 printf ("SDRAM test fails at: %08x\n", (uint) p); 79 return 1; 80 } 81 } 82 83 puts ("SDRAM test passed.\n"); 84 return 0; 85 } 86 #endif 87 88 #if !defined(CONFIG_SPD_EEPROM) 89 /* 90 * Fixed sdram init -- doesn't use serial presence detect. 91 */ 92 long int fixed_sdram (void) 93 { 94 #if !defined(CONFIG_SYS_RAMBOOT) 95 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; 96 volatile struct ccsr_ddr *ddr = &immap->im_ddr1; 97 98 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS; 99 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS; 100 ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS; 101 ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS; 102 ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG; 103 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG; 104 ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG; 105 ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG; 106 ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3; 107 ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0; 108 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1; 109 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2; 110 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1A; 111 ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2; 112 ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1; 113 ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2; 114 ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTL; 115 ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL; 116 ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT; 117 ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL; 118 119 asm ("sync;isync"); 120 121 udelay (500); 122 123 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B; 124 asm ("sync; isync"); 125 126 udelay (500); 127 ddr = &immap->im_ddr2; 128 129 ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS; 130 ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS; 131 ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS; 132 ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS; 133 ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG; 134 ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG; 135 ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG; 136 ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG; 137 ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH; 138 ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0; 139 ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1; 140 ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2; 141 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1A; 142 ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2; 143 ddr->sdram_mode = CONFIG_SYS_DDR2_MODE_1; 144 ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2; 145 ddr->sdram_md_cntl = CONFIG_SYS_DDR2_MODE_CTL; 146 ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL; 147 ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT; 148 ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL; 149 150 asm ("sync;isync"); 151 152 udelay (500); 153 154 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B; 155 asm ("sync; isync"); 156 157 udelay (500); 158 #endif 159 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; 160 } 161 #endif /* !defined(CONFIG_SPD_EEPROM) */ 162 163 #if defined(CONFIG_PCI) 164 /* 165 * Initialize PCI Devices, report devices found. 166 */ 167 168 void pci_init_board(void) 169 { 170 fsl_pcie_init_board(0); 171 } 172 #endif /* CONFIG_PCI */ 173 174 175 #if defined(CONFIG_OF_BOARD_SETUP) 176 int ft_board_setup(void *blob, bd_t *bd) 177 { 178 ft_cpu_setup(blob, bd); 179 180 FT_FSL_PCI_SETUP; 181 182 return 0; 183 } 184 #endif 185 186 void sbc8641d_reset_board (void) 187 { 188 puts ("Resetting board....\n"); 189 } 190 191 /* 192 * get_board_sys_clk 193 * Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ 194 */ 195 196 unsigned long get_board_sys_clk (ulong dummy) 197 { 198 int i; 199 ulong val = 0; 200 201 i = 5; 202 i &= 0x07; 203 204 switch (i) { 205 case 0: 206 val = 33000000; 207 break; 208 case 1: 209 val = 40000000; 210 break; 211 case 2: 212 val = 50000000; 213 break; 214 case 3: 215 val = 66000000; 216 break; 217 case 4: 218 val = 83000000; 219 break; 220 case 5: 221 val = 100000000; 222 break; 223 case 6: 224 val = 134000000; 225 break; 226 case 7: 227 val = 166000000; 228 break; 229 } 230 231 return val; 232 } 233 234 void board_reset(void) 235 { 236 #ifdef CONFIG_SYS_RESET_ADDRESS 237 ulong addr = CONFIG_SYS_RESET_ADDRESS; 238 239 /* flush and disable I/D cache */ 240 __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3"); 241 __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5"); 242 __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4"); 243 __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5"); 244 __asm__ __volatile__ ("sync"); 245 __asm__ __volatile__ ("mtspr 1008, 4"); 246 __asm__ __volatile__ ("isync"); 247 __asm__ __volatile__ ("sync"); 248 __asm__ __volatile__ ("mtspr 1008, 5"); 249 __asm__ __volatile__ ("isync"); 250 __asm__ __volatile__ ("sync"); 251 252 /* 253 * SRR0 has system reset vector, SRR1 has default MSR value 254 * rfi restores MSR from SRR1 and sets the PC to the SRR0 value 255 */ 256 __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr)); 257 __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4"); 258 __asm__ __volatile__ ("mtspr 27, 4"); 259 __asm__ __volatile__ ("rfi"); 260 #endif 261 } 262