/* * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com> * * Copyright 2007 Embedded Specialties, Inc. * * Copyright 2004, 2007 Freescale Semiconductor. * * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <common.h> #include <pci.h> #include <asm/processor.h> #include <asm/immap_85xx.h> #include <asm/fsl_pci.h> #include <fsl_ddr_sdram.h> #include <asm/fsl_serdes.h> #include <spd_sdram.h> #include <netdev.h> #include <tsec.h> #include <miiphy.h> #include <libfdt.h> #include <fdt_support.h> DECLARE_GLOBAL_DATA_PTR; void local_bus_init(void); int board_early_init_f (void) { return 0; } int checkboard (void) { volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); volatile u_char *rev= (void *)CONFIG_SYS_BD_REV; printf ("Board: Wind River SBC8548 Rev. 0x%01x\n", in_8(rev) >> 4); /* * Initialize local bus. */ local_bus_init (); out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */ out_be32(&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, lbc_mhz, lcrr = CONFIG_SYS_LBC_LCRR; sys_info_t sysinfo; get_sys_info(&sysinfo); lbc_mhz = sysinfo.freq_localbus / 1000000; clkdiv = sysinfo.freq_systembus / sysinfo.freq_localbus; debug("LCRR=0x%x, CD=%d, MHz=%d\n", lcrr, clkdiv, lbc_mhz); out_be32(&gur->lbiuiplldcr1, 0x00078080); if (clkdiv == 16) { out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0); } else if (clkdiv == 8) { out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0); } else if (clkdiv == 4) { out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0); } /* * Local Bus Clock > 83.3 MHz. According to timing * specifications set LCRR[EADC] to 2 delay cycles. */ if (lbc_mhz > 83) { lcrr &= ~LCRR_EADC; lcrr |= LCRR_EADC_2; } /* * According to MPC8548ERMAD Rev. 1.3, 13.3.1.16, 13-30 * disable PLL bypass for Local Bus Clock > 83 MHz. */ if (lbc_mhz >= 66) lcrr &= (~LCRR_DBYP); /* DLL Enabled */ else lcrr |= LCRR_DBYP; /* DLL Bypass */ out_be32(&lbc->lcrr, lcrr); asm("sync;isync;msync"); /* * According to MPC8548ERMAD Rev.1.3 read back LCRR * and terminate with isync */ lcrr = in_be32(&lbc->lcrr); asm ("isync;"); /* let DLL stabilize */ udelay(500); out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */ out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */ } /* * Initialize SDRAM memory on the Local Bus. */ void lbc_sdram_init(void) { #if defined(CONFIG_SYS_LBC_SDRAM_SIZE) uint idx; const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024; volatile fsl_lbc_t *lbc = LBC_BASE_ADDR; uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2); puts(" SDRAM: "); print_size(size, "\n"); /* * Setup SDRAM Base and Option Registers */ set_lbc_or(3, CONFIG_SYS_OR3_PRELIM); set_lbc_br(3, CONFIG_SYS_BR3_PRELIM); set_lbc_or(4, CONFIG_SYS_OR4_PRELIM); set_lbc_br(4, CONFIG_SYS_BR4_PRELIM); out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR); asm("msync"); out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT); out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR); asm("msync"); /* * Issue PRECHARGE ALL command. */ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL); asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); *sdram_addr2 = 0xff; ppcDcbf((unsigned long) sdram_addr2); udelay(100); /* * Issue 8 AUTO REFRESH commands. */ for (idx = 0; idx < 8; idx++) { out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH); asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); *sdram_addr2 = 0xff; ppcDcbf((unsigned long) sdram_addr2); udelay(100); } /* * Issue 8 MODE-set command. */ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW); asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); *sdram_addr2 = 0xff; ppcDcbf((unsigned long) sdram_addr2); udelay(100); /* * Issue RFEN command. */ out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN); asm("sync;msync"); *sdram_addr = 0xff; ppcDcbf((unsigned long) sdram_addr); *sdram_addr2 = 0xff; ppcDcbf((unsigned long) sdram_addr2); udelay(200); /* Overkill. Must wait > 200 bus cycles */ #endif /* enable SDRAM init */ } #if defined(CONFIG_SYS_DRAM_TEST) int testdram(void) { uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START; uint *pend = (uint *) CONFIG_SYS_MEMTEST_END; uint *p; printf("Testing DRAM from 0x%08x to 0x%08x\n", CONFIG_SYS_MEMTEST_START, CONFIG_SYS_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 #ifdef CONFIG_PCI1 static struct pci_controller pci1_hose; #endif /* CONFIG_PCI1 */ #ifdef CONFIG_PCI void pci_init_board(void) { volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); int first_free_busno = 0; #ifdef CONFIG_PCI1 struct fsl_pci_info pci_info; u32 devdisr = in_be32(&gur->devdisr); u32 pordevsr = in_be32(&gur->pordevsr); u32 porpllsr = in_be32(&gur->porpllsr); if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */ printf("PCI: Host, %d bit, %s MHz, %s, %s\n", (pci_32) ? 32 : 64, (pci_speed == 33000000) ? "33" : (pci_speed == 66000000) ? "66" : "unknown", pci_clk_sel ? "sync" : "async", pci_arb ? "arbiter" : "external-arbiter"); 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); first_free_busno = fsl_pci_init_port(&pci_info, &pci1_hose, first_free_busno); } else { printf("PCI: disabled\n"); } puts("\n"); #else setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */ #endif setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */ fsl_pcie_init_board(first_free_busno); } #endif int board_eth_init(bd_t *bis) { tsec_standard_init(bis); pci_eth_init(bis); return 0; /* otherwise cpu_eth_init gets run */ } int last_stage_init(void) { return 0; } #if defined(CONFIG_OF_BOARD_SETUP) void ft_board_setup(void *blob, bd_t *bd) { ft_cpu_setup(blob, bd); #ifdef CONFIG_FSL_PCI_INIT FT_FSL_PCI_SETUP; #endif } #endif