/* * Copyright 2004, 2007, 2009-2011 Freescale Semiconductor, Inc. * * (C) Copyright 2002 Scott McNutt * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include "../common/cadmus.h" #include "../common/eeprom.h" #include "../common/via.h" DECLARE_GLOBAL_DATA_PTR; void local_bus_init(void); int checkboard (void) { volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); /* PCI slot in USER bits CSR[6:7] by convention. */ uint pci_slot = get_pci_slot (); uint cpu_board_rev = get_cpu_board_revision (); printf ("Board: CDS Version 0x%02x, PCI Slot %d\n", get_board_version (), pci_slot); printf ("CPU Board Revision %d.%d (0x%04x)\n", MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev), MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev); /* * Initialize local bus. */ local_bus_init (); /* * Hack TSEC 3 and 4 IO voltages. */ gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */ ecm->eedr = 0xffffffff; /* clear ecm errors */ ecm->eeer = 0xffffffff; /* enable ecm errors */ return 0; } /* * Initialize Local Bus */ void local_bus_init(void) { volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; uint clkdiv; uint lbc_hz; sys_info_t sysinfo; get_sys_info(&sysinfo); clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2; lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; gur->lbiuiplldcr1 = 0x00078080; if (clkdiv == 16) { gur->lbiuiplldcr0 = 0x7c0f1bf0; } else if (clkdiv == 8) { gur->lbiuiplldcr0 = 0x6c0f1bf0; } else if (clkdiv == 4) { gur->lbiuiplldcr0 = 0x5c0f1bf0; } lbc->lcrr |= 0x00030000; asm("sync;isync;msync"); lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */ lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */ } /* * Initialize SDRAM memory on the Local Bus. */ void lbc_sdram_init(void) { #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) uint idx; volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; uint cpu_board_rev; uint lsdmr_common; puts("LBC SDRAM: "); print_size(CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n "); /* * Setup SDRAM Base and Option Registers */ set_lbc_or(2, CONFIG_SYS_OR2_PRELIM); set_lbc_br(2, CONFIG_SYS_BR2_PRELIM); lbc->lbcr = CONFIG_SYS_LBC_LBCR; asm("msync"); lbc->lsrt = CONFIG_SYS_LBC_LSRT; lbc->mrtpr = CONFIG_SYS_LBC_MRTPR; asm("msync"); /* * MPC8548 uses "new" 15-16 style addressing. */ cpu_board_rev = get_cpu_board_revision(); lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON; lsdmr_common |= LSDMR_BSMA1516; /* * Issue PRECHARGE ALL command. */ lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); /* * Issue 8 AUTO REFRESH commands. */ for (idx = 0; idx < 8; idx++) { lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); } /* * Issue 8 MODE-set command. */ lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(100); /* * Issue NORMAL OP command. */ lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL; asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); udelay(200); /* Overkill. Must wait > 200 bus cycles */ #endif /* enable SDRAM init */ } #if defined(CONFIG_PCI) || defined(CONFIG_PCI1) /* For some reason the Tundra PCI bridge shows up on itself as a * different device. Work around that by refusing to configure it. */ void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { } static struct pci_config_table pci_mpc85xxcds_config_table[] = { {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}}, {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}}, {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1, mpc85xx_config_via_usbide, {0,0,0}}, {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2, mpc85xx_config_via_usb, {0,0,0}}, {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3, mpc85xx_config_via_usb2, {0,0,0}}, {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5, mpc85xx_config_via_power, {0,0,0}}, {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6, mpc85xx_config_via_ac97, {0,0,0}}, {}, }; static struct pci_controller pci1_hose; #endif /* CONFIG_PCI */ #ifdef CONFIG_PCI2 static struct pci_controller pci2_hose; #endif /* CONFIG_PCI2 */ void pci_init_board(void) { volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); struct fsl_pci_info pci_info; u32 devdisr, pordevsr, io_sel; u32 porpllsr, pci_agent, pci_speed, pci_32, pci_arb, pci_clk_sel; int first_free_busno = 0; devdisr = in_be32(&gur->devdisr); pordevsr = in_be32(&gur->pordevsr); porpllsr = in_be32(&gur->porpllsr); io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; debug (" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel); #ifdef CONFIG_PCI1 pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */ pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */ pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { SET_STD_PCI_INFO(pci_info, 1); set_next_law(pci_info.mem_phys, law_size_bits(pci_info.mem_size), pci_info.law); set_next_law(pci_info.io_phys, law_size_bits(pci_info.io_size), pci_info.law); pci_agent = fsl_setup_hose(&pci1_hose, pci_info.regs); printf("PCI: %d bit, %s MHz, %s, %s, %s (base address %lx)\n", (pci_32) ? 32 : 64, (pci_speed == 33333000) ? "33" : (pci_speed == 66666000) ? "66" : "unknown", pci_clk_sel ? "sync" : "async", pci_agent ? "agent" : "host", pci_arb ? "arbiter" : "external-arbiter", pci_info.regs); pci1_hose.config_table = pci_mpc85xxcds_config_table; first_free_busno = fsl_pci_init_port(&pci_info, &pci1_hose, first_free_busno); #ifdef CONFIG_PCIX_CHECK if (!(pordevsr & MPC85xx_PORDEVSR_PCI1)) { /* PCI-X init */ if (CONFIG_SYS_CLK_FREQ < 66000000) printf("PCI-X will only work at 66 MHz\n"); reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E; pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16); } #endif } else { printf("PCI: disabled\n"); } puts("\n"); #else setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */ #endif #ifdef CONFIG_PCI2 { uint pci2_clk_sel = porpllsr & 0x4000; /* PORPLLSR[17] */ uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */ if (pci_dual) { printf("PCI2: 32 bit, 66 MHz, %s\n", pci2_clk_sel ? "sync" : "async"); } else { printf("PCI2: disabled\n"); } } #else setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable */ #endif /* CONFIG_PCI2 */ fsl_pcie_init_board(first_free_busno); } int last_stage_init(void) { unsigned short temp; /* Change the resistors for the PHY */ /* This is needed to get the RGMII working for the 1.3+ * CDS cards */ if (get_board_version() == 0x13) { miiphy_write(CONFIG_TSEC1_NAME, TSEC1_PHY_ADDR, 29, 18); miiphy_read(CONFIG_TSEC1_NAME, TSEC1_PHY_ADDR, 30, &temp); temp = (temp & 0xf03f); temp |= 2 << 9; /* 36 ohm */ temp |= 2 << 6; /* 39 ohm */ miiphy_write(CONFIG_TSEC1_NAME, TSEC1_PHY_ADDR, 30, temp); miiphy_write(CONFIG_TSEC1_NAME, TSEC1_PHY_ADDR, 29, 3); miiphy_write(CONFIG_TSEC1_NAME, TSEC1_PHY_ADDR, 30, 0x8000); } return 0; } #if defined(CONFIG_OF_BOARD_SETUP) void ft_pci_setup(void *blob, bd_t *bd) { FT_FSL_PCI_SETUP; } #endif