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https://github.com/AsahiLinux/u-boot
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2cf431c228
This function can be dropped when all boards use driver model for PCI. For now, move it into init.h with a comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
246 lines
5.3 KiB
C
246 lines
5.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2007 Freescale Semiconductor, Inc.
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*
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* Author: Scott Wood <scottwood@freescale.com>
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* Dave Liu <daveliu@freescale.com>
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*/
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#include <common.h>
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#include <hwconfig.h>
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#include <i2c.h>
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#include <init.h>
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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#include <pci.h>
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#include <mpc83xx.h>
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#include <netdev.h>
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#include <asm/io.h>
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#include <ns16550.h>
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#include <nand.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_early_init_f(void)
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{
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volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
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if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
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gd->flags |= GD_FLG_SILENT;
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return 0;
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}
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#ifndef CONFIG_NAND_SPL
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static u8 read_board_info(void)
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{
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u8 val8;
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i2c_set_bus_num(0);
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if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
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return val8;
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else
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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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static const char * const rev_str[] = {
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"0.0",
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"0.1",
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"1.0",
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"1.1",
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"<unknown>",
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};
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u8 info;
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int i;
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info = read_board_info();
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i = (!info) ? 4: info & 0x03;
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printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]);
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return 0;
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}
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static struct pci_region pci_regions[] = {
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{
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bus_start: CONFIG_SYS_PCI_MEM_BASE,
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phys_start: CONFIG_SYS_PCI_MEM_PHYS,
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size: CONFIG_SYS_PCI_MEM_SIZE,
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flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
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},
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{
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bus_start: CONFIG_SYS_PCI_MMIO_BASE,
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phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
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size: CONFIG_SYS_PCI_MMIO_SIZE,
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flags: PCI_REGION_MEM
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},
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{
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bus_start: CONFIG_SYS_PCI_IO_BASE,
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phys_start: CONFIG_SYS_PCI_IO_PHYS,
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size: CONFIG_SYS_PCI_IO_SIZE,
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flags: PCI_REGION_IO
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}
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};
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static struct pci_region pcie_regions_0[] = {
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{
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.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
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.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
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.size = CONFIG_SYS_PCIE1_MEM_SIZE,
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.flags = PCI_REGION_MEM,
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},
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{
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.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
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.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
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.size = CONFIG_SYS_PCIE1_IO_SIZE,
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.flags = PCI_REGION_IO,
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},
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};
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static struct pci_region pcie_regions_1[] = {
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{
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.bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
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.phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
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.size = CONFIG_SYS_PCIE2_MEM_SIZE,
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.flags = PCI_REGION_MEM,
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},
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{
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.bus_start = CONFIG_SYS_PCIE2_IO_BASE,
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.phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
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.size = CONFIG_SYS_PCIE2_IO_SIZE,
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.flags = PCI_REGION_IO,
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},
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};
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void pci_init_board(void)
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{
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volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
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volatile sysconf83xx_t *sysconf = &immr->sysconf;
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volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
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volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
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volatile law83xx_t *pcie_law = sysconf->pcielaw;
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struct pci_region *reg[] = { pci_regions };
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struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
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/* Enable all 3 PCI_CLK_OUTPUTs. */
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clk->occr |= 0xe0000000;
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/*
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* Configure PCI Local Access Windows
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*/
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pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
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pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
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pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
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pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
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mpc83xx_pci_init(1, reg);
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/* Configure the clock for PCIE controller */
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clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
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SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
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/* Deassert the resets in the control register */
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out_be32(&sysconf->pecr1, 0xE0008000);
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out_be32(&sysconf->pecr2, 0xE0008000);
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udelay(2000);
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/* Configure PCI Express Local Access Windows */
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out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
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out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
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out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
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out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
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mpc83xx_pcie_init(2, pcie_reg);
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}
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#if defined(CONFIG_OF_BOARD_SETUP)
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void fdt_tsec1_fixup(void *fdt, bd_t *bd)
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{
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const char disabled[] = "disabled";
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const char *path;
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int ret;
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if (hwconfig_arg_cmp("board_type", "tsec1")) {
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return;
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} else if (!hwconfig_arg_cmp("board_type", "ulpi")) {
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printf("NOTICE: No or unknown board_type hwconfig specified.\n"
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" Assuming board with TSEC1.\n");
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return;
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}
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ret = fdt_path_offset(fdt, "/aliases");
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if (ret < 0) {
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printf("WARNING: can't find /aliases node\n");
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return;
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}
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path = fdt_getprop(fdt, ret, "ethernet0", NULL);
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if (!path) {
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printf("WARNING: can't find ethernet0 alias\n");
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return;
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}
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do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1);
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}
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int 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_PCI
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ft_pci_setup(blob, bd);
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#endif
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fsl_fdt_fixup_dr_usb(blob, bd);
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fdt_tsec1_fixup(blob, bd);
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return 0;
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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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cpu_eth_init(bis); /* Initialize TSECs first */
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return pci_eth_init(bis);
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}
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#else /* CONFIG_NAND_SPL */
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int checkboard(void)
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{
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puts("Board: Freescale MPC8315ERDB\n");
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return 0;
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}
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void board_init_f(ulong bootflag)
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{
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board_early_init_f();
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NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
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CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
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puts("NAND boot... ");
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timer_init();
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dram_init();
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relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd,
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CONFIG_SYS_NAND_U_BOOT_RELOC);
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}
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void board_init_r(gd_t *gd, ulong dest_addr)
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{
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nand_boot();
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}
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void putc(char c)
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{
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if (gd->flags & GD_FLG_SILENT)
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return;
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if (c == '\n')
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NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
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NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
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}
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#endif /* CONFIG_NAND_SPL */
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