1/* 2 * (C) Copyright 2007 3 * Stefan Roese, DENX Software Engineering, sr@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8#include <common.h> 9#include <asm/ppc4xx.h> 10#include <asm/ppc405.h> 11#include <libfdt.h> 12#include <fdt_support.h> 13#include <asm/processor.h> 14#include <asm/io.h> 15#include <linux/errno.h> 16 17#if defined(CONFIG_PCI) 18#include <pci.h> 19#include <asm/4xx_pcie.h> 20#endif 21 22DECLARE_GLOBAL_DATA_PTR; 23 24extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ 25 26static int board_cpld_version(void) 27{ 28 u32 cpld; 29 30 cpld = in_be32((void *)CONFIG_SYS_FPGA_FIFO_BASE); 31 if ((cpld & CONFIG_SYS_FPGA_MAGIC_MASK) != CONFIG_SYS_FPGA_MAGIC) { 32 /* 33 * Magic not found -> "old" CPLD revision which needs 34 * the "old" EBC configuration 35 */ 36 mtebc(PB2AP, EBC_BXAP_BME_ENABLED | EBC_BXAP_FWT_ENCODE(5) | 37 EBC_BXAP_BWT_ENCODE(0) | EBC_BXAP_BCE_DISABLE | 38 EBC_BXAP_BCT_2TRANS | EBC_BXAP_CSN_ENCODE(0) | 39 EBC_BXAP_OEN_ENCODE(0) | EBC_BXAP_WBN_ENCODE(3) | 40 EBC_BXAP_WBF_ENCODE(0) | EBC_BXAP_TH_ENCODE(4) | 41 EBC_BXAP_RE_DISABLED | EBC_BXAP_SOR_DELAYED | 42 EBC_BXAP_BEM_WRITEONLY | EBC_BXAP_PEN_DISABLED); 43 44 /* 45 * Return 0 for "old" CPLD version 46 */ 47 return 0; 48 } 49 50 /* 51 * Magic found -> "new" CPLD revision which needs no new 52 * EBC configuration 53 */ 54 return (cpld & CONFIG_SYS_FPGA_VER_MASK) >> 8; 55} 56 57/* 58 * Board early initialization function 59 */ 60int board_early_init_f (void) 61{ 62 u32 val; 63 64 /*--------------------------------------------------------------------+ 65 | Interrupt controller setup for the AMCC 405EX(r) PINE evaluation board. 66 +--------------------------------------------------------------------+ 67 +---------------------------------------------------------------------+ 68 |Interrupt| Source | Pol. | Sensi.| Crit. | 69 +---------+-----------------------------------+-------+-------+-------+ 70 | IRQ 00 | UART0 | High | Level | Non | 71 | IRQ 01 | UART1 | High | Level | Non | 72 | IRQ 02 | IIC0 | High | Level | Non | 73 | IRQ 03 | TBD | High | Level | Non | 74 | IRQ 04 | TBD | High | Level | Non | 75 | IRQ 05 | EBM | High | Level | Non | 76 | IRQ 06 | BGI | High | Level | Non | 77 | IRQ 07 | IIC1 | Rising| Edge | Non | 78 | IRQ 08 | SPI | High | Lvl/ed| Non | 79 | IRQ 09 | External IRQ 0 - (PCI-Express) | pgm H | Pgm | Non | 80 | IRQ 10 | MAL TX EOB | High | Level | Non | 81 | IRQ 11 | MAL RX EOB | High | Level | Non | 82 | IRQ 12 | DMA Channel 0 FIFO Full | High | Level | Non | 83 | IRQ 13 | DMA Channel 0 Stat FIFO | High | Level | Non | 84 | IRQ 14 | DMA Channel 1 FIFO Full | High | Level | Non | 85 | IRQ 15 | DMA Channel 1 Stat FIFO | High | Level | Non | 86 | IRQ 16 | PCIE0 AL | high | Level | Non | 87 | IRQ 17 | PCIE0 VPD access | rising| Edge | Non | 88 | IRQ 18 | PCIE0 hot reset request | rising| Edge | Non | 89 | IRQ 19 | PCIE0 hot reset request | faling| Edge | Non | 90 | IRQ 20 | PCIE0 TCR | High | Level | Non | 91 | IRQ 21 | PCIE0 MSI level0 | High | Level | Non | 92 | IRQ 22 | PCIE0 MSI level1 | High | Level | Non | 93 | IRQ 23 | Security EIP-94 | High | Level | Non | 94 | IRQ 24 | EMAC0 interrupt | High | Level | Non | 95 | IRQ 25 | EMAC1 interrupt | High | Level | Non | 96 | IRQ 26 | PCIE0 MSI level2 | High | Level | Non | 97 | IRQ 27 | External IRQ 4 | pgm H | Pgm | Non | 98 | IRQ 28 | UIC2 Non-critical Int. | High | Level | Non | 99 | IRQ 29 | UIC2 Critical Interrupt | High | Level | Crit. | 100 | IRQ 30 | UIC1 Non-critical Int. | High | Level | Non | 101 | IRQ 31 | UIC1 Critical Interrupt | High | Level | Crit. | 102 |---------------------------------------------------------------------- 103 | IRQ 32 | MAL Serr | High | Level | Non | 104 | IRQ 33 | MAL Txde | High | Level | Non | 105 | IRQ 34 | MAL Rxde | High | Level | Non | 106 | IRQ 35 | PCIE0 bus master VC0 |falling| Edge | Non | 107 | IRQ 36 | PCIE0 DCR Error | High | Level | Non | 108 | IRQ 37 | EBC | High |Lvl Edg| Non | 109 | IRQ 38 | NDFC | High | Level | Non | 110 | IRQ 39 | GPT Compare Timer 8 | Risin | Edge | Non | 111 | IRQ 40 | GPT Compare Timer 9 | Risin | Edge | Non | 112 | IRQ 41 | PCIE1 AL | high | Level | Non | 113 | IRQ 42 | PCIE1 VPD access | rising| edge | Non | 114 | IRQ 43 | PCIE1 hot reset request | rising| Edge | Non | 115 | IRQ 44 | PCIE1 hot reset request | faling| Edge | Non | 116 | IRQ 45 | PCIE1 TCR | High | Level | Non | 117 | IRQ 46 | PCIE1 bus master VC0 |falling| Edge | Non | 118 | IRQ 47 | GPT Compare Timer 3 | Risin | Edge | Non | 119 | IRQ 48 | GPT Compare Timer 4 | Risin | Edge | Non | 120 | IRQ 49 | Ext. IRQ 7 |pgm/Fal|pgm/Lvl| Non | 121 | IRQ 50 | Ext. IRQ 8 - |pgm (H)|pgm/Lvl| Non | 122 | IRQ 51 | Ext. IRQ 9 |pgm (H)|pgm/Lvl| Non | 123 | IRQ 52 | GPT Compare Timer 5 | high | Edge | Non | 124 | IRQ 53 | GPT Compare Timer 6 | high | Edge | Non | 125 | IRQ 54 | GPT Compare Timer 7 | high | Edge | Non | 126 | IRQ 55 | Serial ROM | High | Level | Non | 127 | IRQ 56 | GPT Decrement Pulse | High | Level | Non | 128 | IRQ 57 | Ext. IRQ 2 |pgm/Fal|pgm/Lvl| Non | 129 | IRQ 58 | Ext. IRQ 5 |pgm/Fal|pgm/Lvl| Non | 130 | IRQ 59 | Ext. IRQ 6 |pgm/Fal|pgm/Lvl| Non | 131 | IRQ 60 | EMAC0 Wake-up | High | Level | Non | 132 | IRQ 61 | Ext. IRQ 1 |pgm/Fal|pgm/Lvl| Non | 133 | IRQ 62 | EMAC1 Wake-up | High | Level | Non | 134 |---------------------------------------------------------------------- 135 | IRQ 64 | PE0 AL | High | Level | Non | 136 | IRQ 65 | PE0 VPD Access | Risin | Edge | Non | 137 | IRQ 66 | PE0 Hot Reset Request | Risin | Edge | Non | 138 | IRQ 67 | PE0 Hot Reset Request | Falli | Edge | Non | 139 | IRQ 68 | PE0 TCR | High | Level | Non | 140 | IRQ 69 | PE0 BusMaster VCO | Falli | Edge | Non | 141 | IRQ 70 | PE0 DCR Error | High | Level | Non | 142 | IRQ 71 | Reserved | N/A | N/A | Non | 143 | IRQ 72 | PE1 AL | High | Level | Non | 144 | IRQ 73 | PE1 VPD Access | Risin | Edge | Non | 145 | IRQ 74 | PE1 Hot Reset Request | Risin | Edge | Non | 146 | IRQ 75 | PE1 Hot Reset Request | Falli | Edge | Non | 147 | IRQ 76 | PE1 TCR | High | Level | Non | 148 | IRQ 77 | PE1 BusMaster VCO | Falli | Edge | Non | 149 | IRQ 78 | PE1 DCR Error | High | Level | Non | 150 | IRQ 79 | Reserved | N/A | N/A | Non | 151 | IRQ 80 | PE2 AL | High | Level | Non | 152 | IRQ 81 | PE2 VPD Access | Risin | Edge | Non | 153 | IRQ 82 | PE2 Hot Reset Request | Risin | Edge | Non | 154 | IRQ 83 | PE2 Hot Reset Request | Falli | Edge | Non | 155 | IRQ 84 | PE2 TCR | High | Level | Non | 156 | IRQ 85 | PE2 BusMaster VCO | Falli | Edge | Non | 157 | IRQ 86 | PE2 DCR Error | High | Level | Non | 158 | IRQ 87 | Reserved | N/A | N/A | Non | 159 | IRQ 88 | External IRQ(5) | Progr | Progr | Non | 160 | IRQ 89 | External IRQ 4 - Ethernet | Progr | Progr | Non | 161 | IRQ 90 | External IRQ 3 - PCI-X | Progr | Progr | Non | 162 | IRQ 91 | External IRQ 2 - PCI-X | Progr | Progr | Non | 163 | IRQ 92 | External IRQ 1 - PCI-X | Progr | Progr | Non | 164 | IRQ 93 | External IRQ 0 - PCI-X | Progr | Progr | Non | 165 | IRQ 94 | Reserved | N/A | N/A | Non | 166 | IRQ 95 | Reserved | N/A | N/A | Non | 167 |--------------------------------------------------------------------- 168 +---------+-----------------------------------+-------+-------+------*/ 169 /*--------------------------------------------------------------------+ 170 | Initialise UIC registers. Clear all interrupts. Disable all 171 | interrupts. 172 | Set critical interrupt values. Set interrupt polarities. Set 173 | interrupt trigger levels. Make bit 0 High priority. Clear all 174 | interrupts again. 175 +-------------------------------------------------------------------*/ 176 177 mtdcr (UIC2SR, 0xffffffff); /* Clear all interrupts */ 178 mtdcr (UIC2ER, 0x00000000); /* disable all interrupts */ 179 mtdcr (UIC2CR, 0x00000000); /* Set Critical / Non Critical interrupts */ 180 mtdcr (UIC2PR, 0xf7ffffff); /* Set Interrupt Polarities */ 181 mtdcr (UIC2TR, 0x01e1fff8); /* Set Interrupt Trigger Levels */ 182 mtdcr (UIC2VR, 0x00000001); /* Set Vect base=0,INT31 Highest priority */ 183 mtdcr (UIC2SR, 0x00000000); /* clear all interrupts */ 184 mtdcr (UIC2SR, 0xffffffff); /* clear all interrupts */ 185 186 mtdcr (UIC1SR, 0xffffffff); /* Clear all interrupts */ 187 mtdcr (UIC1ER, 0x00000000); /* disable all interrupts */ 188 mtdcr (UIC1CR, 0x00000000); /* Set Critical / Non Critical interrupts */ 189 mtdcr (UIC1PR, 0xfffac785); /* Set Interrupt Polarities */ 190 mtdcr (UIC1TR, 0x001d0040); /* Set Interrupt Trigger Levels */ 191 mtdcr (UIC1VR, 0x00000001); /* Set Vect base=0,INT31 Highest priority */ 192 mtdcr (UIC1SR, 0x00000000); /* clear all interrupts */ 193 mtdcr (UIC1SR, 0xffffffff); /* clear all interrupts */ 194 195 mtdcr (UIC0SR, 0xffffffff); /* Clear all interrupts */ 196 mtdcr (UIC0ER, 0x0000000a); /* Disable all interrupts */ 197 /* Except cascade UIC0 and UIC1 */ 198 mtdcr (UIC0CR, 0x00000000); /* Set Critical / Non Critical interrupts */ 199 mtdcr (UIC0PR, 0xffbfefef); /* Set Interrupt Polarities */ 200 mtdcr (UIC0TR, 0x00007000); /* Set Interrupt Trigger Levels */ 201 mtdcr (UIC0VR, 0x00000001); /* Set Vect base=0,INT31 Highest priority */ 202 mtdcr (UIC0SR, 0x00000000); /* clear all interrupts */ 203 mtdcr (UIC0SR, 0xffffffff); /* clear all interrupts */ 204 205 /* 206 * Note: Some cores are still in reset when the chip starts, so 207 * take them out of reset 208 */ 209 mtsdr(SDR0_SRST, 0); 210 211 /* Configure 405EX for NAND usage */ 212 val = SDR0_CUST0_MUX_NDFC_SEL | 213 SDR0_CUST0_NDFC_ENABLE | 214 SDR0_CUST0_NDFC_BW_8_BIT | 215 SDR0_CUST0_NRB_BUSY | 216 (0x80000000 >> (28 + CONFIG_SYS_NAND_CS)); 217 mtsdr(SDR0_CUST0, val); 218 219 /* 220 * Configure PFC (Pin Function Control) registers 221 * -> Enable USB 222 */ 223 val = SDR0_PFC1_USBEN | SDR0_PFC1_USBBIGEN | SDR0_PFC1_GPT_FREQ; 224 mtsdr(SDR0_PFC1, val); 225 226 /* 227 * The CPLD version detection has to be the first access to 228 * the CPLD, so we need to make this access this early and 229 * save the CPLD version for later. 230 */ 231 gd->board_type = board_cpld_version(); 232 233 /* 234 * Configure FPGA register with PCIe reset 235 */ 236 out_be32((void *)CONFIG_SYS_FPGA_BASE, 0xff570cc4); /* assert PCIe reset */ 237 mdelay(50); 238 out_be32((void *)CONFIG_SYS_FPGA_BASE, 0xff570cc7); /* deassert PCIe reset */ 239 240 return 0; 241} 242 243int misc_init_r(void) 244{ 245#ifdef CONFIG_ENV_IS_IN_FLASH 246 /* Monitor protection ON by default */ 247 flash_protect(FLAG_PROTECT_SET, 248 -CONFIG_SYS_MONITOR_LEN, 249 0xffffffff, 250 &flash_info[0]); 251#endif 252 253 return 0; 254} 255 256static int is_405exr(void) 257{ 258 u32 pvr = get_pvr(); 259 260 if (pvr & 0x00000004) 261 return 0; /* bit 2 set -> 405EX */ 262 263 return 1; /* bit 2 cleared -> 405EXr */ 264} 265 266int board_emac_count(void) 267{ 268 /* 269 * 405EXr only has one EMAC interface, 405EX has two 270 */ 271 if (is_405exr()) 272 return 1; 273 else 274 return 2; 275} 276 277/* 278 * Override the weak default implementation and return the 279 * last PCIe slot number (max number - 1). 280 */ 281int board_pcie_last(void) 282{ 283 /* 284 * 405EXr only has one EMAC interface, 405EX has two 285 */ 286 if (is_405exr()) 287 return 1 - 1; 288 else 289 return 2 - 1; 290} 291 292int checkboard (void) 293{ 294 char buf[64]; 295 int i = getenv_f("serial#", buf, sizeof(buf)); 296 297 if (is_405exr()) 298 printf("Board: Haleakala - AMCC PPC405EXr Evaluation Board"); 299 else 300 printf("Board: Kilauea - AMCC PPC405EX Evaluation Board"); 301 302 if (i > 0) { 303 puts(", serial# "); 304 puts(buf); 305 } 306 printf(" (CPLD rev. %ld)\n", gd->board_type); 307 308 return (0); 309} 310