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https://github.com/brain-hackers/u-boot-brain
synced 2024-09-10 23:03:29 +09:00
![Paul Gortmaker](/assets/img/avatar_default.png)
The PCI/PCI-e support for the sbc8548 was based on an earlier version of what the MPC8548CDS board was using, and in its current state it won't even compile. This re-syncs it to match the latest codebase and makes use of the new shared PCI functions to reduce board duplication. It borrows from the MPC8568MDS, in that it pulls the PCI-e I/O back to 0xe280_0000 (where PCI2 would be on MPC8548CDS), and similarly it coalesces the PCI and PCI-e mem into one single TLB. Both PCI-x and PCI-e have been tested with intel e1000 cards under linux (with an accompanying dts change in place) Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
417 lines
9.9 KiB
C
417 lines
9.9 KiB
C
/*
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* Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
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*
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* Copyright 2007 Embedded Specialties, Inc.
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*
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* Copyright 2004, 2007 Freescale Semiconductor.
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*
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* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <pci.h>
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#include <asm/processor.h>
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#include <asm/immap_85xx.h>
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#include <asm/fsl_pci.h>
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#include <asm/fsl_ddr_sdram.h>
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#include <spd_sdram.h>
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#include <netdev.h>
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#include <tsec.h>
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#include <miiphy.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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DECLARE_GLOBAL_DATA_PTR;
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void local_bus_init(void);
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void sdram_init(void);
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long int fixed_sdram (void);
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int board_early_init_f (void)
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{
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return 0;
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}
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int checkboard (void)
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{
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volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
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volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
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printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
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in_8(rev) >> 4);
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/*
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* Initialize local bus.
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*/
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local_bus_init ();
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out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
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out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
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return 0;
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}
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phys_size_t
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initdram(int board_type)
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{
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long dram_size = 0;
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puts("Initializing\n");
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#if defined(CONFIG_DDR_DLL)
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{
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/*
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* Work around to stabilize DDR DLL MSYNC_IN.
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* Errata DDR9 seems to have been fixed.
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* This is now the workaround for Errata DDR11:
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* Override DLL = 1, Course Adj = 1, Tap Select = 0
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*/
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volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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out_be32(&gur->ddrdllcr, 0x81000000);
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asm("sync;isync;msync");
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udelay(200);
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}
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#endif
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#if defined(CONFIG_SPD_EEPROM)
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dram_size = fsl_ddr_sdram();
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dram_size = setup_ddr_tlbs(dram_size / 0x100000);
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dram_size *= 0x100000;
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#else
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dram_size = fixed_sdram ();
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#endif
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/*
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* SDRAM Initialization
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*/
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sdram_init();
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puts(" DDR: ");
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return dram_size;
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}
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/*
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* Initialize Local Bus
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*/
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void
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local_bus_init(void)
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{
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volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
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uint clkdiv;
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uint lbc_hz;
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sys_info_t sysinfo;
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get_sys_info(&sysinfo);
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clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
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lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
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out_be32(&gur->lbiuiplldcr1, 0x00078080);
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if (clkdiv == 16) {
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out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
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} else if (clkdiv == 8) {
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out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
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} else if (clkdiv == 4) {
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out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
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}
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setbits_be32(&lbc->lcrr, 0x00030000);
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asm("sync;isync;msync");
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out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
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out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
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}
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/*
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* Initialize SDRAM memory on the Local Bus.
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*/
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void
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sdram_init(void)
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{
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#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
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uint idx;
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volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
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uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
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uint lsdmr_common;
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puts(" SDRAM: ");
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print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
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/*
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* Setup SDRAM Base and Option Registers
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*/
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out_be32(&lbc->or3, CONFIG_SYS_OR3_PRELIM);
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asm("msync");
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out_be32(&lbc->br3, CONFIG_SYS_BR3_PRELIM);
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asm("msync");
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out_be32(&lbc->or4, CONFIG_SYS_OR4_PRELIM);
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asm("msync");
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out_be32(&lbc->br4, CONFIG_SYS_BR4_PRELIM);
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asm("msync");
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out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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asm("msync");
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out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
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out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
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asm("msync");
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/*
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* MPC8548 uses "new" 15-16 style addressing.
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*/
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lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
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lsdmr_common |= LSDMR_BSMA1516;
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/*
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* Issue PRECHARGE ALL command.
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*/
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out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL);
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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/*
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* Issue 8 AUTO REFRESH commands.
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*/
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for (idx = 0; idx < 8; idx++) {
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out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH);
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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}
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/*
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* Issue 8 MODE-set command.
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*/
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out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW);
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(100);
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/*
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* Issue NORMAL OP command.
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*/
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out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL);
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asm("sync;msync");
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*sdram_addr = 0xff;
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ppcDcbf((unsigned long) sdram_addr);
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udelay(200); /* Overkill. Must wait > 200 bus cycles */
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#endif /* enable SDRAM init */
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}
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#if defined(CONFIG_SYS_DRAM_TEST)
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int
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testdram(void)
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{
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uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
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uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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uint *p;
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printf("Testing DRAM from 0x%08x to 0x%08x\n",
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CONFIG_SYS_MEMTEST_START,
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CONFIG_SYS_MEMTEST_END);
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printf("DRAM test phase 1:\n");
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for (p = pstart; p < pend; p++)
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*p = 0xaaaaaaaa;
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for (p = pstart; p < pend; p++) {
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if (*p != 0xaaaaaaaa) {
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printf ("DRAM test fails at: %08x\n", (uint) p);
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return 1;
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}
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}
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printf("DRAM test phase 2:\n");
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for (p = pstart; p < pend; p++)
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*p = 0x55555555;
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for (p = pstart; p < pend; p++) {
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if (*p != 0x55555555) {
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printf ("DRAM test fails at: %08x\n", (uint) p);
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return 1;
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}
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}
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printf("DRAM test passed.\n");
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return 0;
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}
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#endif
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#if !defined(CONFIG_SPD_EEPROM)
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#define CONFIG_SYS_DDR_CONTROL 0xc300c000
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/*************************************************************************
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* fixed_sdram init -- doesn't use serial presence detect.
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* assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
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************************************************************************/
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long int fixed_sdram (void)
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{
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volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
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out_be32(&ddr->cs0_bnds, 0x0000007f);
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out_be32(&ddr->cs1_bnds, 0x008000ff);
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out_be32(&ddr->cs2_bnds, 0x00000000);
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out_be32(&ddr->cs3_bnds, 0x00000000);
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out_be32(&ddr->cs0_config, 0x80010101);
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out_be32(&ddr->cs1_config, 0x80010101);
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out_be32(&ddr->cs2_config, 0x00000000);
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out_be32(&ddr->cs3_config, 0x00000000);
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out_be32(&ddr->timing_cfg_3, 0x00000000);
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out_be32(&ddr->timing_cfg_0, 0x00220802);
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out_be32(&ddr->timing_cfg_1, 0x38377322);
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out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
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out_be32(&ddr->sdram_cfg, 0x4300C000);
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out_be32(&ddr->sdram_cfg_2, 0x24401000);
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out_be32(&ddr->sdram_mode, 0x23C00542);
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out_be32(&ddr->sdram_mode_2, 0x00000000);
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out_be32(&ddr->sdram_interval, 0x05080100);
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out_be32(&ddr->sdram_md_cntl, 0x00000000);
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out_be32(&ddr->sdram_data_init, 0x00000000);
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out_be32(&ddr->sdram_clk_cntl, 0x03800000);
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asm("sync;isync;msync");
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udelay(500);
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#if defined (CONFIG_DDR_ECC)
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/* Enable ECC checking */
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out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
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#else
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out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
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#endif
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return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
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}
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#endif
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#ifdef CONFIG_PCI1
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static struct pci_controller pci1_hose;
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#endif /* CONFIG_PCI1 */
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#ifdef CONFIG_PCIE1
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static struct pci_controller pcie1_hose;
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#endif /* CONFIG_PCIE1 */
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#ifdef CONFIG_PCI
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void
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pci_init_board(void)
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{
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volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
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struct fsl_pci_info pci_info[2];
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u32 devdisr, pordevsr, porpllsr, io_sel;
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int first_free_busno = 0;
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int num = 0;
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#ifdef CONFIG_PCIE1
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int pcie_configured;
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#endif
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devdisr = in_be32(&gur->devdisr);
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pordevsr = in_be32(&gur->pordevsr);
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porpllsr = in_be32(&gur->porpllsr);
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io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
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debug(" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
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#ifdef CONFIG_PCI1
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if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
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uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
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uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
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uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
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uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
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printf (" PCI host: %d bit, %s MHz, %s, %s\n",
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(pci_32) ? 32 : 64,
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(pci_speed == 33000000) ? "33" :
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(pci_speed == 66000000) ? "66" : "unknown",
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pci_clk_sel ? "sync" : "async",
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pci_arb ? "arbiter" : "external-arbiter");
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SET_STD_PCI_INFO(pci_info[num], 1);
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first_free_busno = fsl_pci_init_port(&pci_info[num++],
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&pci1_hose, first_free_busno);
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} else {
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printf (" PCI: disabled\n");
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}
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puts("\n");
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#else
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setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
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#endif
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setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
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#ifdef CONFIG_PCIE1
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pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
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if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
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SET_STD_PCIE_INFO(pci_info[num], 1);
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printf (" PCIE at base address %lx\n", pci_info[num].regs);
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first_free_busno = fsl_pci_init_port(&pci_info[num++],
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&pcie1_hose, first_free_busno);
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} else {
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printf (" PCIE: disabled\n");
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}
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puts("\n");
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#else
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setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
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#endif
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}
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#endif
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int board_eth_init(bd_t *bis)
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{
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tsec_standard_init(bis);
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pci_eth_init(bis);
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return 0; /* otherwise cpu_eth_init gets run */
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}
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int last_stage_init(void)
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{
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return 0;
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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void ft_board_setup(void *blob, bd_t *bd)
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{
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ft_cpu_setup(blob, bd);
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#ifdef CONFIG_PCI1
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ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
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#endif
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#ifdef CONFIG_PCIE1
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ft_fsl_pci_setup(blob, "pci1", &pcie1_hose);
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#endif
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}
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#endif
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