/* * Copyright 2004 Freescale Semiconductor. * * (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 "../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 extern long int spd_sdram(void); void local_bus_init(void); void sdram_init(void); /* * I/O Port configuration table * * if conf is 1, then that port pin will be configured at boot time * according to the five values podr/pdir/ppar/psor/pdat for that entry */ const iop_conf_t iop_conf_tab[4][32] = { /* Port A configuration */ { /* conf ppar psor pdir podr pdat */ /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */ /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */ /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */ /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */ /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */ /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */ /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */ /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */ /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */ /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */ /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */ /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */ /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */ /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */ /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */ /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */ /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */ /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */ /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */ /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */ /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */ /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */ /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */ /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */ /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */ /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */ /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */ /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */ /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */ /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */ /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */ /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */ }, /* Port B configuration */ { /* conf ppar psor pdir podr pdat */ /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */ /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */ /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */ /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */ /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */ /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */ /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */ /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */ /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */ /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */ /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */ /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */ /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */ /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */ /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */ /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */ /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */ /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */ /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */ /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */ /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ }, /* Port C */ { /* conf ppar psor pdir podr pdat */ /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */ /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */ /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */ /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */ /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */ /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */ /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */ /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */ /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */ /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */ /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */ /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */ /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */ /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */ /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */ /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */ /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */ /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */ /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */ /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */ /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */ /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */ /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */ /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */ /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */ /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */ }, /* Port D */ { /* conf ppar psor pdir podr pdat */ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */ /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */ /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */ /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */ /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */ /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */ /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */ /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */ /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */ /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */ /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */ /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */ /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */ /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */ /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */ /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */ /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */ /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */ /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */ /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */ /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */ /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ } }; int board_early_init_f (void) { return 0; } int checkboard (void) { volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); /* PCI slot in USER bits CSR[6:7] by convention. */ uint pci_slot = get_pci_slot (); uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */ uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */ uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */ uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */ uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */ 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); printf (" PCI1: %d bit, %s MHz, %s\n", (pci1_32) ? 32 : 64, (pci1_speed == 33000000) ? "33" : (pci1_speed == 66000000) ? "66" : "unknown", pci1_clk_sel ? "sync" : "async"); if (pci_dual) { printf (" PCI2: 32 bit, 66 MHz, %s\n", pci2_clk_sel ? "sync" : "async"); } else { printf (" PCI2: disabled\n"); } /* * Initialize local bus. */ local_bus_init (); return 0; } long int 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 *)(CFG_MPC85xx_GUTS_ADDR); gur->ddrdllcr = 0x81000000; asm("sync;isync;msync"); udelay(200); } #endif dram_size = spd_sdram(); #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 immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); volatile ccsr_lbc_t *lbc = &immap->im_lbc; uint clkdiv; uint lbc_hz; sys_info_t sysinfo; uint temp_lbcdll; /* * Errata LBC11. * Fix Local Bus clock glitch when DLL is enabled. * * If localbus freq is < 66Mhz, DLL bypass mode must be used. * If localbus freq is > 133Mhz, DLL can be safely enabled. * Between 66 and 133, the DLL is enabled with an override workaround. */ get_sys_info(&sysinfo); clkdiv = lbc->lcrr & 0x0f; lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; if (lbc_hz < 66) { lbc->lcrr |= 0x80000000; /* DLL Bypass */ } else if (lbc_hz >= 133) { lbc->lcrr &= (~0x80000000); /* DLL Enabled */ } else { lbc->lcrr &= (~0x8000000); /* DLL Enabled */ udelay(200); /* * Sample LBC DLL ctrl reg, upshift it to set the * override bits. */ temp_lbcdll = gur->lbcdllcr; gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000); asm("sync;isync;msync"); } } /* * Initialize SDRAM memory on the Local Bus. */ void sdram_init(void) { #if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM) uint idx; volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_lbc_t *lbc = &immap->im_lbc; uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE; uint cpu_board_rev; uint lsdmr_common; puts(" SDRAM: "); print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); /* * Setup SDRAM Base and Option Registers */ lbc->or2 = CFG_OR2_PRELIM; asm("msync"); lbc->br2 = CFG_BR2_PRELIM; asm("msync"); lbc->lbcr = CFG_LBC_LBCR; asm("msync"); lbc->lsrt = CFG_LBC_LSRT; lbc->mrtpr = CFG_LBC_MRTPR; asm("msync"); /* * Determine which address lines to use baed on CPU board rev. */ cpu_board_rev = get_cpu_board_revision(); lsdmr_common = CFG_LBC_LSDMR_COMMON; if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) { lsdmr_common |= CFG_LBC_LSDMR_BSMA1617; } else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) { lsdmr_common |= CFG_LBC_LSDMR_BSMA1516; } else { /* * Assume something unable to identify itself is * really old, and likely has lines 16/17 mapped. */ lsdmr_common |= CFG_LBC_LSDMR_BSMA1617; } /* * Issue PRECHARGE ALL command. */ lbc->lsdmr = lsdmr_common | CFG_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 | CFG_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 | CFG_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 | CFG_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(CFG_DRAM_TEST) int testdram(void) { uint *pstart = (uint *) CFG_MEMTEST_START; uint *pend = (uint *) CFG_MEMTEST_END; uint *p; printf("Testing DRAM from 0x%08x to 0x%08x\n", CFG_MEMTEST_START, CFG_MEMTEST_END); printf("DRAM test phase 1:\n"); for (p = pstart; p < pend; p++) *p = 0xaaaaaaaa; for (p = pstart; p < pend; p++) { if (*p != 0xaaaaaaaa) { printf ("DRAM test fails at: %08x\n", (uint) p); return 1; } } printf("DRAM test phase 2:\n"); for (p = pstart; p < pend; p++) *p = 0x55555555; for (p = pstart; p < pend; p++) { if (*p != 0x55555555) { printf ("DRAM test fails at: %08x\n", (uint) p); return 1; } } printf("DRAM test passed.\n"); return 0; } #endif #if defined(CONFIG_PCI) /* 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 hose[] = { { config_table: pci_mpc85xxcds_config_table,}, #ifdef CONFIG_MPC85XX_PCI2 {}, #endif }; #endif /* CONFIG_PCI */ void pci_init_board(void) { #ifdef CONFIG_PCI pci_mpc85xx_init(hose); #endif } #if defined(CONFIG_OF_BOARD_SETUP) void ft_pci_setup(void *blob, bd_t *bd) { int node, tmp[2]; const char *path; node = fdt_path_offset(blob, "/aliases"); tmp[0] = 0; if (node >= 0) { #ifdef CONFIG_PCI1 path = fdt_getprop(blob, node, "pci0", NULL); if (path) { tmp[1] = hose[0].last_busno - hose[0].first_busno; do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); } #endif #ifdef CONFIG_MPC85XX_PCI2 path = fdt_getprop(blob, node, "pci1", NULL); if (path) { tmp[1] = hose[1].last_busno - hose[1].first_busno; do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); } #endif } } #endif