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- /*
- * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #include <common.h>
- #include <asm/mmu.h>
- #include <asm/io.h>
- #include <mpc83xx.h>
- #include <pci.h>
- #include <i2c.h>
- #include <asm/fsl_i2c.h>
- DECLARE_GLOBAL_DATA_PTR;
- static struct pci_region pci1_regions[] = {
- {
- bus_start: CONFIG_SYS_PCI1_MEM_BASE,
- phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
- size: CONFIG_SYS_PCI1_MEM_SIZE,
- flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
- },
- {
- bus_start: CONFIG_SYS_PCI1_IO_BASE,
- phys_start: CONFIG_SYS_PCI1_IO_PHYS,
- size: CONFIG_SYS_PCI1_IO_SIZE,
- flags: PCI_REGION_IO
- },
- {
- bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
- phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
- size: CONFIG_SYS_PCI1_MMIO_SIZE,
- flags: PCI_REGION_MEM
- },
- };
- #ifdef CONFIG_MPC83XX_PCI2
- static struct pci_region pci2_regions[] = {
- {
- bus_start: CONFIG_SYS_PCI2_MEM_BASE,
- phys_start: CONFIG_SYS_PCI2_MEM_PHYS,
- size: CONFIG_SYS_PCI2_MEM_SIZE,
- flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
- },
- {
- bus_start: CONFIG_SYS_PCI2_IO_BASE,
- phys_start: CONFIG_SYS_PCI2_IO_PHYS,
- size: CONFIG_SYS_PCI2_IO_SIZE,
- flags: PCI_REGION_IO
- },
- {
- bus_start: CONFIG_SYS_PCI2_MMIO_BASE,
- phys_start: CONFIG_SYS_PCI2_MMIO_PHYS,
- size: CONFIG_SYS_PCI2_MMIO_SIZE,
- flags: PCI_REGION_MEM
- },
- };
- #endif
- void pci_init_board(void)
- {
- volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
- volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
- volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
- #ifndef CONFIG_MPC83XX_PCI2
- struct pci_region *reg[] = { pci1_regions };
- #else
- struct pci_region *reg[] = { pci1_regions, pci2_regions };
- #endif
- u8 reg8;
- #if defined(CONFIG_SYS_I2C)
- i2c_set_bus_num(1);
- /* Read the PCI_M66EN jumper setting */
- if ((i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0) ||
- (i2c_read(CONFIG_SYS_I2C_8574A_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0)) {
- if (reg8 & I2C_8574_PCI66)
- clk->occr = 0xff000000; /* 66 MHz PCI */
- else
- clk->occr = 0xff600001; /* 33 MHz PCI */
- } else {
- clk->occr = 0xff600001; /* 33 MHz PCI */
- }
- #else
- clk->occr = 0xff000000; /* 66 MHz PCI */
- #endif
- udelay(2000);
- /* Configure PCI Local Access Windows */
- pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
- pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
- pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
- pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M;
- udelay(2000);
- #ifndef CONFIG_MPC83XX_PCI2
- mpc83xx_pci_init(1, reg);
- #else
- mpc83xx_pci_init(2, reg);
- #endif
- }
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