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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
- */
- #include <init.h>
- #include <asm/mmu.h>
- #include <asm/io.h>
- #include <common.h>
- #include <mpc83xx.h>
- #include <pci.h>
- #include <i2c.h>
- #include <asm/fsl_i2c.h>
- #include <linux/delay.h>
- 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
- #ifndef CONFIG_PCISLAVE
- void pib_init(void)
- {
- u8 val8, orig_i2c_bus;
- /*
- * Assign PIB PMC slot to desired PCI bus
- */
- /* Switch temporarily to I2C bus #2 */
- orig_i2c_bus = i2c_get_bus_num();
- i2c_set_bus_num(1);
- val8 = 0;
- i2c_write(0x23, 0x6, 1, &val8, 1);
- i2c_write(0x23, 0x7, 1, &val8, 1);
- val8 = 0xff;
- i2c_write(0x23, 0x2, 1, &val8, 1);
- i2c_write(0x23, 0x3, 1, &val8, 1);
- val8 = 0;
- i2c_write(0x26, 0x6, 1, &val8, 1);
- val8 = 0x34;
- i2c_write(0x26, 0x7, 1, &val8, 1);
- #if defined(CONFIG_PCI_64BIT)
- val8 = 0xf4; /* PMC2:PCI1/64-bit */
- #elif defined(CONFIG_PCI_ALL_PCI1)
- val8 = 0xf3; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI1 */
- #elif defined(CONFIG_PCI_ONE_PCI1)
- val8 = 0xf9; /* PMC1:PCI1 PMC2:PCI2 PMC3:PCI2 */
- #else
- val8 = 0xf5; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI2 */
- #endif
- i2c_write(0x26, 0x2, 1, &val8, 1);
- val8 = 0xff;
- i2c_write(0x26, 0x3, 1, &val8, 1);
- val8 = 0;
- i2c_write(0x27, 0x6, 1, &val8, 1);
- i2c_write(0x27, 0x7, 1, &val8, 1);
- val8 = 0xff;
- i2c_write(0x27, 0x2, 1, &val8, 1);
- val8 = 0xef;
- i2c_write(0x27, 0x3, 1, &val8, 1);
- asm("eieio");
- #if defined(CONFIG_PCI_64BIT)
- printf("PCI1: 64-bit on PMC2\n");
- #elif defined(CONFIG_PCI_ALL_PCI1)
- printf("PCI1: 32-bit on PMC1, PMC2, PMC3\n");
- #elif defined(CONFIG_PCI_ONE_PCI1)
- printf("PCI1: 32-bit on PMC1\n");
- printf("PCI2: 32-bit on PMC2, PMC3\n");
- #else
- printf("PCI1: 32-bit on PMC1, PMC2\n");
- printf("PCI2: 32-bit on PMC3\n");
- #endif
- /* Reset to original I2C bus */
- i2c_set_bus_num(orig_i2c_bus);
- }
- #endif /* CONFIG_PCISLAVE */
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