mirror of
https://github.com/AsahiLinux/u-boot
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c2120fbfbc
The sandburst-specific i2c drivers have been deleted, conflict was just over the SPDX conversion. Conflicts: board/sandburst/common/ppc440gx_i2c.c board/sandburst/common/ppc440gx_i2c.h Signed-off-by: Tom Rini <trini@ti.com>
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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* Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/mmu.h>
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#include <asm/io.h>
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#include <mpc83xx.h>
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#include <pci.h>
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#include <i2c.h>
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#include <asm/fsl_i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct pci_region pci1_regions[] = {
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{
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bus_start: CONFIG_SYS_PCI1_MEM_BASE,
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phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
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size: CONFIG_SYS_PCI1_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_PCI1_IO_BASE,
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phys_start: CONFIG_SYS_PCI1_IO_PHYS,
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size: CONFIG_SYS_PCI1_IO_SIZE,
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flags: PCI_REGION_IO
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},
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{
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bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
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phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
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size: CONFIG_SYS_PCI1_MMIO_SIZE,
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flags: PCI_REGION_MEM
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},
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};
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#ifdef CONFIG_MPC83XX_PCI2
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static struct pci_region pci2_regions[] = {
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{
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bus_start: CONFIG_SYS_PCI2_MEM_BASE,
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phys_start: CONFIG_SYS_PCI2_MEM_PHYS,
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size: CONFIG_SYS_PCI2_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_PCI2_IO_BASE,
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phys_start: CONFIG_SYS_PCI2_IO_PHYS,
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size: CONFIG_SYS_PCI2_IO_SIZE,
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flags: PCI_REGION_IO
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},
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{
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bus_start: CONFIG_SYS_PCI2_MMIO_BASE,
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phys_start: CONFIG_SYS_PCI2_MMIO_PHYS,
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size: CONFIG_SYS_PCI2_MMIO_SIZE,
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flags: PCI_REGION_MEM
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},
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};
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#endif
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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 clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
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volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
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#ifndef CONFIG_MPC83XX_PCI2
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struct pci_region *reg[] = { pci1_regions };
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#else
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struct pci_region *reg[] = { pci1_regions, pci2_regions };
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#endif
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u8 reg8;
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#if defined(CONFIG_SYS_I2C)
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i2c_set_bus_num(1);
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/* Read the PCI_M66EN jumper setting */
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if ((i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0) ||
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(i2c_read(CONFIG_SYS_I2C_8574A_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0)) {
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if (reg8 & I2C_8574_PCI66)
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clk->occr = 0xff000000; /* 66 MHz PCI */
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else
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clk->occr = 0xff600001; /* 33 MHz PCI */
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} else {
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clk->occr = 0xff600001; /* 33 MHz PCI */
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}
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#else
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clk->occr = 0xff000000; /* 66 MHz PCI */
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#endif
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udelay(2000);
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/* Configure PCI Local Access Windows */
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pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
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pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
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pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
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pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M;
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udelay(2000);
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#ifndef CONFIG_MPC83XX_PCI2
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mpc83xx_pci_init(1, reg);
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#else
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mpc83xx_pci_init(2, reg);
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#endif
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}
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