| /* |
| * Copyright 2004, 2007, 2009-2011 Freescale Semiconductor, Inc. |
| * |
| * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> |
| * |
| * 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 <common.h> |
| #include <pci.h> |
| #include <asm/processor.h> |
| #include <asm/mmu.h> |
| #include <asm/immap_85xx.h> |
| #include <asm/fsl_pci.h> |
| #include <asm/fsl_ddr_sdram.h> |
| #include <asm/fsl_serdes.h> |
| #include <miiphy.h> |
| #include <libfdt.h> |
| #include <fdt_support.h> |
| |
| #include "../common/cadmus.h" |
| #include "../common/eeprom.h" |
| #include "../common/via.h" |
| |
| 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 (); |
| |
| puts("Board: MPC8548CDS"); |
| printf(" Carrier Rev: 0x%02x, PCI Slot %d\n", |
| get_board_version(), pci_slot); |
| printf(" Daughtercard Rev: %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 */ |
| |
| 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; |
| char buf[32]; |
| |
| 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("PCI1: %d bit, %s MHz, %s, %s, %s (base address %lx)\n", |
| (pci_32) ? 32 : 64, |
| strmhz(buf, pci_speed), |
| 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("PCI1: 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 |