| /* |
| * Copyright 2004, 2007 Freescale Semiconductor. |
| * |
| * (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/immap_fsl_pci.h> |
| #include <asm/fsl_ddr_sdram.h> |
| #include <spd_sdram.h> |
| #include <miiphy.h> |
| #include <libfdt.h> |
| #include <fdt_support.h> |
| |
| #include "../common/cadmus.h" |
| #include "../common/eeprom.h" |
| #include "../common/via.h" |
| |
| #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
| extern void ddr_enable_ecc(unsigned int dram_size); |
| #endif |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| void local_bus_init(void); |
| void sdram_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 (); |
| uint svr; |
| |
| 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 (); |
| |
| svr = get_svr(); |
| |
| /* |
| * Fix CPU2 errata: A core hang possible while executing a |
| * msync instruction and a snoopable transaction from an I/O |
| * master tagged to make quick forward progress is present. |
| * Fixed in Silicon Rev.2.1 |
| */ |
| if (!(SVR_MAJ(svr) >= 2 && SVR_MIN(svr) >= 1)) |
| ecm->eebpcr |= (1 << 16); |
| |
| /* |
| * 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; |
| } |
| |
| phys_size_t |
| initdram(int board_type) |
| { |
| long dram_size = 0; |
| |
| puts("Initializing\n"); |
| |
| #if defined(CONFIG_DDR_DLL) |
| { |
| /* |
| * Work around to stabilize DDR DLL MSYNC_IN. |
| * Errata DDR9 seems to have been fixed. |
| * This is now the workaround for Errata DDR11: |
| * Override DLL = 1, Course Adj = 1, Tap Select = 0 |
| */ |
| |
| volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
| |
| gur->ddrdllcr = 0x81000000; |
| asm("sync;isync;msync"); |
| udelay(200); |
| } |
| #endif |
| |
| dram_size = fsl_ddr_sdram(); |
| dram_size = setup_ddr_tlbs(dram_size / 0x100000); |
| dram_size *= 0x100000; |
| |
| #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) |
| /* |
| * Initialize and enable DDR ECC. |
| */ |
| ddr_enable_ecc(dram_size); |
| #endif |
| |
| /* |
| * SDRAM Initialization |
| */ |
| sdram_init(); |
| |
| puts(" DDR: "); |
| return dram_size; |
| } |
| |
| /* |
| * Initialize Local Bus |
| */ |
| void |
| local_bus_init(void) |
| { |
| volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
| volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); |
| |
| uint clkdiv; |
| uint lbc_hz; |
| sys_info_t sysinfo; |
| |
| get_sys_info(&sysinfo); |
| clkdiv = (lbc->lcrr & 0x0f) * 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 |
| sdram_init(void) |
| { |
| #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM) |
| |
| uint idx; |
| volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); |
| uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; |
| uint cpu_board_rev; |
| uint lsdmr_common; |
| |
| puts(" SDRAM: "); |
| |
| print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); |
| |
| /* |
| * Setup SDRAM Base and Option Registers |
| */ |
| lbc->or2 = CONFIG_SYS_OR2_PRELIM; |
| asm("msync"); |
| |
| lbc->br2 = CONFIG_SYS_BR2_PRELIM; |
| asm("msync"); |
| |
| 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 |= CONFIG_SYS_LBC_LSDMR_BSMA1516; |
| |
| /* |
| * Issue PRECHARGE ALL command. |
| */ |
| lbc->lsdmr = lsdmr_common | CONFIG_SYS_LBC_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 | CONFIG_SYS_LBC_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 | CONFIG_SYS_LBC_LSDMR_OP_MRW; |
| asm("sync;msync"); |
| *sdram_addr = 0xff; |
| ppcDcbf((unsigned long) sdram_addr); |
| udelay(100); |
| |
| /* |
| * Issue NORMAL OP command. |
| */ |
| lbc->lsdmr = lsdmr_common | CONFIG_SYS_LBC_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 = { |
| config_table: pci_mpc85xxcds_config_table}; |
| #endif /* CONFIG_PCI */ |
| |
| #ifdef CONFIG_PCI2 |
| static struct pci_controller pci2_hose; |
| #endif /* CONFIG_PCI2 */ |
| |
| #ifdef CONFIG_PCIE1 |
| static struct pci_controller pcie1_hose; |
| #endif /* CONFIG_PCIE1 */ |
| |
| extern int fsl_pci_setup_inbound_windows(struct pci_region *r); |
| extern void fsl_pci_init(struct pci_controller *hose); |
| |
| int first_free_busno=0; |
| |
| void |
| pci_init_board(void) |
| { |
| volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
| uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19; |
| uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16; |
| |
| |
| #ifdef CONFIG_PCI1 |
| { |
| volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR; |
| struct pci_controller *hose = &pci1_hose; |
| struct pci_config_table *table; |
| struct pci_region *r = hose->regions; |
| |
| uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */ |
| uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */ |
| uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */ |
| |
| uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6); |
| |
| uint pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */ |
| |
| if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) { |
| printf (" PCI: %d bit, %s MHz, %s, %s, %s\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" |
| ); |
| |
| |
| /* inbound */ |
| r += fsl_pci_setup_inbound_windows(r); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCI1_MEM_BASE, |
| CONFIG_SYS_PCI1_MEM_PHYS, |
| CONFIG_SYS_PCI1_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCI1_IO_BASE, |
| CONFIG_SYS_PCI1_IO_PHYS, |
| CONFIG_SYS_PCI1_IO_SIZE, |
| PCI_REGION_IO); |
| hose->region_count = r - hose->regions; |
| |
| /* relocate config table pointers */ |
| hose->config_table = \ |
| (struct pci_config_table *)((uint)hose->config_table + gd->reloc_off); |
| for (table = hose->config_table; table && table->vendor; table++) |
| table->config_device += gd->reloc_off; |
| |
| hose->first_busno=first_free_busno; |
| pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); |
| |
| fsl_pci_init(hose); |
| first_free_busno=hose->last_busno+1; |
| printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno); |
| #ifdef CONFIG_PCIX_CHECK |
| if (!(gur->pordevsr & PORDEVSR_PCI)) { |
| /* 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"); |
| } |
| } |
| #else |
| gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */ |
| #endif |
| |
| #ifdef CONFIG_PCI2 |
| { |
| uint pci2_clk_sel = gur->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 |
| gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable */ |
| #endif /* CONFIG_PCI2 */ |
| |
| #ifdef CONFIG_PCIE1 |
| { |
| volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR; |
| struct pci_controller *hose = &pcie1_hose; |
| int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3); |
| struct pci_region *r = hose->regions; |
| |
| int pcie_configured = io_sel >= 1; |
| |
| if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){ |
| printf ("\n PCIE connected to slot as %s (base address %x)", |
| pcie_ep ? "End Point" : "Root Complex", |
| (uint)pci); |
| |
| if (pci->pme_msg_det) { |
| pci->pme_msg_det = 0xffffffff; |
| debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det); |
| } |
| printf ("\n"); |
| |
| /* inbound */ |
| r += fsl_pci_setup_inbound_windows(r); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE1_MEM_BASE, |
| CONFIG_SYS_PCIE1_MEM_PHYS, |
| CONFIG_SYS_PCIE1_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE1_IO_BASE, |
| CONFIG_SYS_PCIE1_IO_PHYS, |
| CONFIG_SYS_PCIE1_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = r - hose->regions; |
| |
| hose->first_busno=first_free_busno; |
| pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data); |
| |
| fsl_pci_init(hose); |
| printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno); |
| |
| first_free_busno=hose->last_busno+1; |
| |
| } else { |
| printf (" PCIE: disabled\n"); |
| } |
| } |
| #else |
| gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */ |
| #endif |
| |
| } |
| |
| 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) |
| extern void ft_fsl_pci_setup(void *blob, const char *pci_alias, |
| struct pci_controller *hose); |
| |
| void ft_pci_setup(void *blob, bd_t *bd) |
| { |
| #ifdef CONFIG_PCI1 |
| ft_fsl_pci_setup(blob, "pci0", &pci1_hose); |
| #endif |
| #ifdef CONFIG_PCIE1 |
| ft_fsl_pci_setup(blob, "pci1", &pcie1_hose); |
| #endif |
| } |
| #endif |