| /* |
| * 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> |
| * |
| * 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/immap_85xx.h> |
| #include <asm/fsl_pci.h> |
| #include <asm/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; |
| sys_info_t sysinfo; |
| |
| get_sys_info(&sysinfo); |
| clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2; |
| |
| 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); |
| } |
| |
| setbits_be32(&lbc->lcrr, 0x00030000); |
| |
| asm("sync;isync;msync"); |
| |
| 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 |
| |
| #if !defined(CONFIG_SPD_EEPROM) |
| #define CONFIG_SYS_DDR_CONTROL 0xc300c000 |
| /************************************************************************* |
| * fixed_sdram init -- doesn't use serial presence detect. |
| * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed. |
| ************************************************************************/ |
| phys_size_t fixed_sdram(void) |
| { |
| volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); |
| |
| out_be32(&ddr->cs0_bnds, 0x0000007f); |
| out_be32(&ddr->cs1_bnds, 0x008000ff); |
| out_be32(&ddr->cs2_bnds, 0x00000000); |
| out_be32(&ddr->cs3_bnds, 0x00000000); |
| out_be32(&ddr->cs0_config, 0x80010101); |
| out_be32(&ddr->cs1_config, 0x80010101); |
| out_be32(&ddr->cs2_config, 0x00000000); |
| out_be32(&ddr->cs3_config, 0x00000000); |
| out_be32(&ddr->timing_cfg_3, 0x00000000); |
| out_be32(&ddr->timing_cfg_0, 0x00220802); |
| out_be32(&ddr->timing_cfg_1, 0x38377322); |
| out_be32(&ddr->timing_cfg_2, 0x0fa044C7); |
| out_be32(&ddr->sdram_cfg, 0x4300C000); |
| out_be32(&ddr->sdram_cfg_2, 0x24401000); |
| out_be32(&ddr->sdram_mode, 0x23C00542); |
| out_be32(&ddr->sdram_mode_2, 0x00000000); |
| out_be32(&ddr->sdram_interval, 0x05080100); |
| out_be32(&ddr->sdram_md_cntl, 0x00000000); |
| out_be32(&ddr->sdram_data_init, 0x00000000); |
| out_be32(&ddr->sdram_clk_cntl, 0x03800000); |
| asm("sync;isync;msync"); |
| udelay(500); |
| |
| #if defined (CONFIG_DDR_ECC) |
| /* Enable ECC checking */ |
| out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000); |
| #else |
| out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL); |
| #endif |
| |
| return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; |
| } |
| #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 |