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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-19 00:18:51 +09:00
![Stefan Roese](/assets/img/avatar_default.png)
This patch update the 4xx fdt support. It enabled fdt booting on the AMCC Kilauea and Sequoia for now. More can follow later quite easily. Signed-off-by: Stefan Roese <sr@denx.de>
609 lines
19 KiB
C
609 lines
19 KiB
C
/*
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* (C) Copyright 2006-2007
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* (C) Copyright 2006
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* Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
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* Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
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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 <libfdt.h>
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#include <fdt_support.h>
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#include <ppc440.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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DECLARE_GLOBAL_DATA_PTR;
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extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
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ulong flash_get_size (ulong base, int banknum);
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int board_early_init_f(void)
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{
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u32 sdr0_cust0;
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u32 sdr0_pfc1, sdr0_pfc2;
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u32 reg;
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mtdcr(ebccfga, xbcfg);
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mtdcr(ebccfgd, 0xb8400000);
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/*--------------------------------------------------------------------
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* Setup the GPIO pins
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*-------------------------------------------------------------------*/
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/* test-only: take GPIO init from pcs440ep ???? in config file */
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out32(GPIO0_OR, 0x00000000);
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out32(GPIO0_TCR, 0x0000000f);
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out32(GPIO0_OSRL, 0x50015400);
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out32(GPIO0_OSRH, 0x550050aa);
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out32(GPIO0_TSRL, 0x50015400);
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out32(GPIO0_TSRH, 0x55005000);
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out32(GPIO0_ISR1L, 0x50000000);
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out32(GPIO0_ISR1H, 0x00000000);
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out32(GPIO0_ISR2L, 0x00000000);
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out32(GPIO0_ISR2H, 0x00000100);
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out32(GPIO0_ISR3L, 0x00000000);
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out32(GPIO0_ISR3H, 0x00000000);
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out32(GPIO1_OR, 0x00000000);
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out32(GPIO1_TCR, 0xc2000000);
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out32(GPIO1_OSRL, 0x5c280000);
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out32(GPIO1_OSRH, 0x00000000);
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out32(GPIO1_TSRL, 0x0c000000);
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out32(GPIO1_TSRH, 0x00000000);
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out32(GPIO1_ISR1L, 0x00005550);
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out32(GPIO1_ISR1H, 0x00000000);
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out32(GPIO1_ISR2L, 0x00050000);
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out32(GPIO1_ISR2H, 0x00000000);
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out32(GPIO1_ISR3L, 0x01400000);
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out32(GPIO1_ISR3H, 0x00000000);
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/*--------------------------------------------------------------------
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* Setup the interrupt controller polarities, triggers, etc.
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*-------------------------------------------------------------------*/
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mtdcr(uic0sr, 0xffffffff); /* clear all */
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mtdcr(uic0er, 0x00000000); /* disable all */
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mtdcr(uic0cr, 0x00000005); /* ATI & UIC1 crit are critical */
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mtdcr(uic0pr, 0xfffff7ff); /* per ref-board manual */
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mtdcr(uic0tr, 0x00000000); /* per ref-board manual */
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mtdcr(uic0vr, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(uic0sr, 0xffffffff); /* clear all */
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mtdcr(uic1sr, 0xffffffff); /* clear all */
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mtdcr(uic1er, 0x00000000); /* disable all */
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mtdcr(uic1cr, 0x00000000); /* all non-critical */
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mtdcr(uic1pr, 0xffffffff); /* per ref-board manual */
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mtdcr(uic1tr, 0x00000000); /* per ref-board manual */
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mtdcr(uic1vr, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(uic1sr, 0xffffffff); /* clear all */
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mtdcr(uic2sr, 0xffffffff); /* clear all */
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mtdcr(uic2er, 0x00000000); /* disable all */
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mtdcr(uic2cr, 0x00000000); /* all non-critical */
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mtdcr(uic2pr, 0xffffffff); /* per ref-board manual */
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mtdcr(uic2tr, 0x00000000); /* per ref-board manual */
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mtdcr(uic2vr, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(uic2sr, 0xffffffff); /* clear all */
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/* 50MHz tmrclk */
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*(unsigned char *)(CFG_BCSR_BASE | 0x04) = 0x00;
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/* clear write protects */
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*(unsigned char *)(CFG_BCSR_BASE | 0x07) = 0x00;
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/* enable Ethernet */
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*(unsigned char *)(CFG_BCSR_BASE | 0x08) = 0x00;
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/* enable USB device */
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*(unsigned char *)(CFG_BCSR_BASE | 0x09) = 0x20;
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/* select Ethernet pins */
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mfsdr(SDR0_PFC1, sdr0_pfc1);
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sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) | SDR0_PFC1_SELECT_CONFIG_4;
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mfsdr(SDR0_PFC2, sdr0_pfc2);
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sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) | SDR0_PFC2_SELECT_CONFIG_4;
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mtsdr(SDR0_PFC2, sdr0_pfc2);
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mtsdr(SDR0_PFC1, sdr0_pfc1);
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/* PCI arbiter enabled */
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mfsdr(sdr_pci0, reg);
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mtsdr(sdr_pci0, 0x80000000 | reg);
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/* setup NAND FLASH */
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mfsdr(SDR0_CUST0, sdr0_cust0);
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sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
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SDR0_CUST0_NDFC_ENABLE |
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SDR0_CUST0_NDFC_BW_8_BIT |
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SDR0_CUST0_NDFC_ARE_MASK |
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(0x80000000 >> (28 + CFG_NAND_CS));
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mtsdr(SDR0_CUST0, sdr0_cust0);
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return 0;
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}
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/*---------------------------------------------------------------------------+
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| misc_init_r.
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+---------------------------------------------------------------------------*/
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int misc_init_r(void)
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{
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uint pbcr;
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int size_val = 0;
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u32 reg;
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#ifdef CONFIG_440EPX
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unsigned long usb2d0cr = 0;
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unsigned long usb2phy0cr, usb2h0cr = 0;
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unsigned long sdr0_pfc1;
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char *act = getenv("usbact");
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#endif
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/*
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* FLASH stuff...
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*/
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/* Re-do sizing to get full correct info */
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/* adjust flash start and offset */
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gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
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gd->bd->bi_flashoffset = 0;
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#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
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mtdcr(ebccfga, pb3cr);
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#else
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mtdcr(ebccfga, pb0cr);
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#endif
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pbcr = mfdcr(ebccfgd);
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switch (gd->bd->bi_flashsize) {
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case 1 << 20:
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size_val = 0;
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break;
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case 2 << 20:
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size_val = 1;
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break;
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case 4 << 20:
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size_val = 2;
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break;
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case 8 << 20:
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size_val = 3;
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break;
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case 16 << 20:
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size_val = 4;
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break;
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case 32 << 20:
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size_val = 5;
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break;
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case 64 << 20:
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size_val = 6;
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break;
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case 128 << 20:
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size_val = 7;
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break;
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}
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pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
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#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
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mtdcr(ebccfga, pb3cr);
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#else
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mtdcr(ebccfga, pb0cr);
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#endif
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mtdcr(ebccfgd, pbcr);
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/*
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* Re-check to get correct base address
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*/
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flash_get_size(gd->bd->bi_flashstart, 0);
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#ifdef CFG_ENV_IS_IN_FLASH
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/* Monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET,
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-CFG_MONITOR_LEN,
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0xffffffff,
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&flash_info[0]);
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/* Env protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET,
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CFG_ENV_ADDR_REDUND,
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CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
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&flash_info[0]);
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#endif
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/*
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* USB suff...
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*/
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#ifdef CONFIG_440EPX
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if (act == NULL || strcmp(act, "hostdev") == 0) {
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/* SDR Setting */
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mfsdr(SDR0_PFC1, sdr0_pfc1);
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mfsdr(SDR0_USB2D0CR, usb2d0cr);
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mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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mfsdr(SDR0_USB2H0CR, usb2h0cr);
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ; /*1*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
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/* An 8-bit/60MHz interface is the only possible alternative
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when connecting the Device to the PHY */
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usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
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usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ; /*1*/
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/* To enable the USB 2.0 Device function through the UTMI interface */
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usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
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usb2d0cr = usb2d0cr | SDR0_USB2D0CR_USB2DEV_SELECTION; /*1*/
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sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
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sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_USB2D_SEL; /*0*/
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mtsdr(SDR0_PFC1, sdr0_pfc1);
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mtsdr(SDR0_USB2D0CR, usb2d0cr);
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mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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mtsdr(SDR0_USB2H0CR, usb2h0cr);
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/*clear resets*/
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udelay (1000);
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mtsdr(SDR0_SRST1, 0x00000000);
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udelay (1000);
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mtsdr(SDR0_SRST0, 0x00000000);
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printf("USB: Host(int phy) Device(ext phy)\n");
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} else if (strcmp(act, "dev") == 0) {
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/*-------------------PATCH-------------------------------*/
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mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PURDIS; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
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mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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udelay (1000);
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mtsdr(SDR0_SRST1, 0x672c6000);
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udelay (1000);
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mtsdr(SDR0_SRST0, 0x00000080);
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udelay (1000);
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mtsdr(SDR0_SRST1, 0x60206000);
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*(unsigned int *)(0xe0000350) = 0x00000001;
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udelay (1000);
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mtsdr(SDR0_SRST1, 0x60306000);
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/*-------------------PATCH-------------------------------*/
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/* SDR Setting */
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mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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mfsdr(SDR0_USB2H0CR, usb2h0cr);
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mfsdr(SDR0_USB2D0CR, usb2d0cr);
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mfsdr(SDR0_PFC1, sdr0_pfc1);
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_XOCLK_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_WDINT_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_8BIT_60MHZ; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DVBUS_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN; /*1*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_DWNSTR_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_DEV; /*0*/
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usb2phy0cr = usb2phy0cr &~SDR0_USB2PHY0CR_UTMICN_MASK;
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usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_DEV; /*0*/
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usb2h0cr = usb2h0cr &~SDR0_USB2H0CR_WDINT_MASK;
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usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_8BIT_60MHZ; /*0*/
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usb2d0cr = usb2d0cr &~SDR0_USB2D0CR_USB2DEV_EBC_SEL_MASK;
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usb2d0cr = usb2d0cr | SDR0_USB2D0CR_EBC_SELECTION; /*0*/
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sdr0_pfc1 = sdr0_pfc1 &~SDR0_PFC1_UES_MASK;
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sdr0_pfc1 = sdr0_pfc1 | SDR0_PFC1_UES_EBCHR_SEL; /*1*/
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mtsdr(SDR0_USB2H0CR, usb2h0cr);
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mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
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mtsdr(SDR0_USB2D0CR, usb2d0cr);
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mtsdr(SDR0_PFC1, sdr0_pfc1);
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/*clear resets*/
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udelay (1000);
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mtsdr(SDR0_SRST1, 0x00000000);
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udelay (1000);
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mtsdr(SDR0_SRST0, 0x00000000);
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printf("USB: Device(int phy)\n");
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}
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#endif /* CONFIG_440EPX */
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mfsdr(SDR0_SRST1, reg); /* enable security/kasumi engines */
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reg &= ~(SDR0_SRST1_CRYP0 | SDR0_SRST1_KASU0);
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mtsdr(SDR0_SRST1, reg);
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/*
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* Clear PLB4A0_ACR[WRP]
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* This fix will make the MAL burst disabling patch for the Linux
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* EMAC driver obsolete.
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*/
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reg = mfdcr(plb4_acr) & ~PLB4_ACR_WRP;
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mtdcr(plb4_acr, reg);
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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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char *s = getenv("serial#");
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u8 rev;
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u8 val;
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#ifdef CONFIG_440EPX
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printf("Board: Sequoia - AMCC PPC440EPx Evaluation Board");
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#else
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printf("Board: Rainier - AMCC PPC440GRx Evaluation Board");
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#endif
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rev = in_8((void *)(CFG_BCSR_BASE + 0));
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val = in_8((void *)(CFG_BCSR_BASE + 5)) & CFG_BCSR5_PCI66EN;
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printf(", Rev. %X, PCI=%d MHz", rev, val ? 66 : 33);
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if (s != NULL) {
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puts(", serial# ");
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puts(s);
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}
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putc('\n');
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return (0);
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}
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#if defined(CFG_DRAM_TEST)
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int testdram(void)
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{
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unsigned long *mem = (unsigned long *)0;
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const unsigned long kend = (1024 / sizeof(unsigned long));
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unsigned long k, n;
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mtmsr(0);
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for (k = 0; k < CFG_MBYTES_SDRAM;
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++k, mem += (1024 / sizeof(unsigned long))) {
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if ((k & 1023) == 0) {
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printf("%3d MB\r", k / 1024);
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}
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memset(mem, 0xaaaaaaaa, 1024);
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for (n = 0; n < kend; ++n) {
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if (mem[n] != 0xaaaaaaaa) {
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printf("SDRAM test fails at: %08x\n",
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(uint) & mem[n]);
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return 1;
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}
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}
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memset(mem, 0x55555555, 1024);
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for (n = 0; n < kend; ++n) {
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if (mem[n] != 0x55555555) {
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printf("SDRAM test fails at: %08x\n",
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(uint) & mem[n]);
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return 1;
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}
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}
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}
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printf("SDRAM test passes\n");
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return 0;
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}
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#endif
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/*************************************************************************
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* pci_pre_init
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*
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* This routine is called just prior to registering the hose and gives
|
|
* the board the opportunity to check things. Returning a value of zero
|
|
* indicates that things are bad & PCI initialization should be aborted.
|
|
*
|
|
* Different boards may wish to customize the pci controller structure
|
|
* (add regions, override default access routines, etc) or perform
|
|
* certain pre-initialization actions.
|
|
*
|
|
************************************************************************/
|
|
#if defined(CONFIG_PCI)
|
|
int pci_pre_init(struct pci_controller *hose)
|
|
{
|
|
unsigned long addr;
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Set priority for all PLB3 devices to 0.
|
|
| Set PLB3 arbiter to fair mode.
|
|
+-------------------------------------------------------------------------*/
|
|
mfsdr(sdr_amp1, addr);
|
|
mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
|
|
addr = mfdcr(plb3_acr);
|
|
mtdcr(plb3_acr, addr | 0x80000000);
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Set priority for all PLB4 devices to 0.
|
|
+-------------------------------------------------------------------------*/
|
|
mfsdr(sdr_amp0, addr);
|
|
mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
|
|
addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
|
|
mtdcr(plb4_acr, addr);
|
|
|
|
/*-------------------------------------------------------------------------+
|
|
| Set Nebula PLB4 arbiter to fair mode.
|
|
+-------------------------------------------------------------------------*/
|
|
/* Segment0 */
|
|
addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
|
|
addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
|
|
addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
|
|
addr = (addr & ~plb0_acr_wrp_mask) | plb0_acr_wrp_2deep;
|
|
mtdcr(plb0_acr, addr);
|
|
|
|
/* Segment1 */
|
|
addr = (mfdcr(plb1_acr) & ~plb1_acr_ppm_mask) | plb1_acr_ppm_fair;
|
|
addr = (addr & ~plb1_acr_hbu_mask) | plb1_acr_hbu_enabled;
|
|
addr = (addr & ~plb1_acr_rdp_mask) | plb1_acr_rdp_4deep;
|
|
addr = (addr & ~plb1_acr_wrp_mask) | plb1_acr_wrp_2deep;
|
|
mtdcr(plb1_acr, addr);
|
|
|
|
return 1;
|
|
}
|
|
#endif /* defined(CONFIG_PCI) */
|
|
|
|
/*************************************************************************
|
|
* pci_target_init
|
|
*
|
|
* The bootstrap configuration provides default settings for the pci
|
|
* inbound map (PIM). But the bootstrap config choices are limited and
|
|
* may not be sufficient for a given board.
|
|
*
|
|
************************************************************************/
|
|
#if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT)
|
|
void pci_target_init(struct pci_controller *hose)
|
|
{
|
|
/*--------------------------------------------------------------------------+
|
|
* Set up Direct MMIO registers
|
|
*--------------------------------------------------------------------------*/
|
|
/*--------------------------------------------------------------------------+
|
|
| PowerPC440EPX PCI Master configuration.
|
|
| Map one 1Gig range of PLB/processor addresses to PCI memory space.
|
|
| PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
|
|
| Use byte reversed out routines to handle endianess.
|
|
| Make this region non-prefetchable.
|
|
+--------------------------------------------------------------------------*/
|
|
out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
|
|
out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
|
|
out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
|
|
out32r(PCIX0_PMM0PCIHA, 0x00000000); /* PMM0 PCI High Address */
|
|
out32r(PCIX0_PMM0MA, 0xE0000001); /* 512M + No prefetching, and enable region */
|
|
|
|
out32r(PCIX0_PMM1MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
|
|
out32r(PCIX0_PMM1LA, CFG_PCI_MEMBASE2); /* PMM0 Local Address */
|
|
out32r(PCIX0_PMM1PCILA, CFG_PCI_MEMBASE2); /* PMM0 PCI Low Address */
|
|
out32r(PCIX0_PMM1PCIHA, 0x00000000); /* PMM0 PCI High Address */
|
|
out32r(PCIX0_PMM1MA, 0xE0000001); /* 512M + No prefetching, and enable region */
|
|
|
|
out32r(PCIX0_PTM1MS, 0x00000001); /* Memory Size/Attribute */
|
|
out32r(PCIX0_PTM1LA, 0); /* Local Addr. Reg */
|
|
out32r(PCIX0_PTM2MS, 0); /* Memory Size/Attribute */
|
|
out32r(PCIX0_PTM2LA, 0); /* Local Addr. Reg */
|
|
|
|
/*--------------------------------------------------------------------------+
|
|
* Set up Configuration registers
|
|
*--------------------------------------------------------------------------*/
|
|
|
|
/* Program the board's subsystem id/vendor id */
|
|
pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID,
|
|
CFG_PCI_SUBSYS_VENDORID);
|
|
pci_write_config_word(0, PCI_SUBSYSTEM_ID, CFG_PCI_SUBSYS_ID);
|
|
|
|
/* Configure command register as bus master */
|
|
pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER);
|
|
|
|
/* 240nS PCI clock */
|
|
pci_write_config_word(0, PCI_LATENCY_TIMER, 1);
|
|
|
|
/* No error reporting */
|
|
pci_write_config_word(0, PCI_ERREN, 0);
|
|
|
|
pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101);
|
|
|
|
}
|
|
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */
|
|
|
|
/*************************************************************************
|
|
* pci_master_init
|
|
*
|
|
************************************************************************/
|
|
#if defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT)
|
|
void pci_master_init(struct pci_controller *hose)
|
|
{
|
|
unsigned short temp_short;
|
|
|
|
/*--------------------------------------------------------------------------+
|
|
| Write the PowerPC440 EP PCI Configuration regs.
|
|
| Enable PowerPC440 EP to be a master on the PCI bus (PMM).
|
|
| Enable PowerPC440 EP to act as a PCI memory target (PTM).
|
|
+--------------------------------------------------------------------------*/
|
|
pci_read_config_word(0, PCI_COMMAND, &temp_short);
|
|
pci_write_config_word(0, PCI_COMMAND,
|
|
temp_short | PCI_COMMAND_MASTER |
|
|
PCI_COMMAND_MEMORY);
|
|
}
|
|
#endif /* defined(CONFIG_PCI) && defined(CFG_PCI_MASTER_INIT) */
|
|
|
|
/*************************************************************************
|
|
* is_pci_host
|
|
*
|
|
* This routine is called to determine if a pci scan should be
|
|
* performed. With various hardware environments (especially cPCI and
|
|
* PPMC) it's insufficient to depend on the state of the arbiter enable
|
|
* bit in the strap register, or generic host/adapter assumptions.
|
|
*
|
|
* Rather than hard-code a bad assumption in the general 440 code, the
|
|
* 440 pci code requires the board to decide at runtime.
|
|
*
|
|
* Return 0 for adapter mode, non-zero for host (monarch) mode.
|
|
*
|
|
*
|
|
************************************************************************/
|
|
#if defined(CONFIG_PCI)
|
|
int is_pci_host(struct pci_controller *hose)
|
|
{
|
|
/* Cactus is always configured as host. */
|
|
return (1);
|
|
}
|
|
#endif /* defined(CONFIG_PCI) */
|
|
#if defined(CONFIG_POST)
|
|
/*
|
|
* Returns 1 if keys pressed to start the power-on long-running tests
|
|
* Called from board_init_f().
|
|
*/
|
|
int post_hotkeys_pressed(void)
|
|
{
|
|
return 0; /* No hotkeys supported */
|
|
}
|
|
#endif /* CONFIG_POST */
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
|
|
void ft_board_setup(void *blob, bd_t *bd)
|
|
{
|
|
u32 val[4];
|
|
int rc;
|
|
|
|
ft_cpu_setup(blob, bd);
|
|
|
|
/* Fixup NOR mapping */
|
|
val[0] = 0; /* chip select number */
|
|
val[1] = 0; /* always 0 */
|
|
val[2] = gd->bd->bi_flashstart;
|
|
val[3] = gd->bd->bi_flashsize;
|
|
rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
|
|
val, sizeof(val), 1);
|
|
if (rc)
|
|
printf("Unable to update property NOR mapping, err=%s\n",
|
|
fdt_strerror(rc));
|
|
}
|
|
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
|