diff options
Diffstat (limited to 'cpu/mcf547x_8x/pci.c')
| -rw-r--r-- | cpu/mcf547x_8x/pci.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/cpu/mcf547x_8x/pci.c b/cpu/mcf547x_8x/pci.c deleted file mode 100644 index f867dc1..0000000 --- a/cpu/mcf547x_8x/pci.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. - * TsiChung Liew (Tsi-Chung.Liew@freescale.com) - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * PCI Configuration space access support - */ -#include <common.h> -#include <pci.h> -#include <asm/io.h> -#include <asm/immap.h> - -#if defined(CONFIG_PCI) -/* System RAM mapped over PCI */ -#define CONFIG_SYS_PCI_SYS_MEM_BUS CONFIG_SYS_SDRAM_BASE -#define CONFIG_SYS_PCI_SYS_MEM_PHYS CONFIG_SYS_SDRAM_BASE -#define CONFIG_SYS_PCI_SYS_MEM_SIZE (1024 * 1024 * 1024) - -#define cfg_read(val, addr, type, op) *val = op((type)(addr)); -#define cfg_write(val, addr, type, op) op((type *)(addr), (val)); - -#define PCI_OP(rw, size, type, op, mask) \ -int pci_##rw##_cfg_##size(struct pci_controller *hose, \ - pci_dev_t dev, int offset, type val) \ -{ \ - u32 addr = 0; \ - u16 cfg_type = 0; \ - addr = ((offset & 0xfc) | cfg_type | (dev) | 0x80000000); \ - out_be32(hose->cfg_addr, addr); \ - cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ - __asm__ __volatile__("nop"); \ - __asm__ __volatile__("nop"); \ - out_be32(hose->cfg_addr, addr & 0x7fffffff); \ - return 0; \ -} - -PCI_OP(read, byte, u8 *, in_8, 3) -PCI_OP(read, word, u16 *, in_le16, 2) -PCI_OP(write, byte, u8, out_8, 3) -PCI_OP(write, word, u16, out_le16, 2) -PCI_OP(write, dword, u32, out_le32, 0) - -int pci_read_cfg_dword(struct pci_controller *hose, pci_dev_t dev, - int offset, u32 * val) -{ - u32 addr; - u32 tmpv; - u32 mask = 2; /* word access */ - /* Read lower 16 bits */ - addr = ((offset & 0xfc) | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - *val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - __asm__ __volatile__("nop"); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - - /* Read upper 16 bits */ - offset += 2; - addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - __asm__ __volatile__("nop"); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - - /* combine results into dword value */ - *val = (tmpv << 16) | *val; - - return 0; -} - -void pci_mcf547x_8x_init(struct pci_controller *hose) -{ - volatile pci_t *pci = (volatile pci_t *) MMAP_PCI; - volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; - - /* Port configuration */ - gpio->par_pcibg = - GPIO_PAR_PCIBG_PCIBG0(3) | GPIO_PAR_PCIBG_PCIBG1(3) | - GPIO_PAR_PCIBG_PCIBG2(3) | GPIO_PAR_PCIBG_PCIBG3(3) | - GPIO_PAR_PCIBG_PCIBG4(3); - gpio->par_pcibr = - GPIO_PAR_PCIBR_PCIBR0(3) | GPIO_PAR_PCIBR_PCIBR1(3) | - GPIO_PAR_PCIBR_PCIBR2(3) | GPIO_PAR_PCIBR_PCIBR3(3) | - GPIO_PAR_PCIBR_PCIBR4(3); - - /* Assert reset bit */ - pci->gscr |= PCI_GSCR_PR; - - pci->tcr1 = PCI_TCR1_P; - - /* Initiator windows */ - pci->iw0btar = CONFIG_SYS_PCI_MEM_PHYS | (CONFIG_SYS_PCI_MEM_PHYS >> 16); - pci->iw1btar = CONFIG_SYS_PCI_IO_PHYS | (CONFIG_SYS_PCI_IO_PHYS >> 16); - pci->iw2btar = CONFIG_SYS_PCI_CFG_PHYS | (CONFIG_SYS_PCI_CFG_PHYS >> 16); - - pci->iwcr = - PCI_IWCR_W0C_EN | PCI_IWCR_W1C_EN | PCI_IWCR_W1C_IO | - PCI_IWCR_W2C_EN | PCI_IWCR_W2C_IO; - - pci->icr = 0; - - /* Enable bus master and mem access */ - pci->scr = PCI_SCR_B | PCI_SCR_M; - - /* Cache line size and master latency */ - pci->cr1 = PCI_CR1_CLS(8) | PCI_CR1_LTMR(0xF8); - pci->cr2 = 0; - -#ifdef CONFIG_SYS_PCI_BAR0 - pci->bar0 = PCI_BAR_BAR0(CONFIG_SYS_PCI_BAR0); - pci->tbatr0a = CONFIG_SYS_PCI_TBATR0 | PCI_TBATR_EN; -#endif -#ifdef CONFIG_SYS_PCI_BAR1 - pci->bar1 = PCI_BAR_BAR1(CONFIG_SYS_PCI_BAR1); - pci->tbatr1a = CONFIG_SYS_PCI_TBATR1 | PCI_TBATR_EN; -#endif - - /* Deassert reset bit */ - pci->gscr &= ~PCI_GSCR_PR; - udelay(1000); - - /* Enable PCI bus master support */ - hose->first_busno = 0; - hose->last_busno = 0xff; - - pci_set_region(hose->regions + 0, CONFIG_SYS_PCI_MEM_BUS, CONFIG_SYS_PCI_MEM_PHYS, - CONFIG_SYS_PCI_MEM_SIZE, PCI_REGION_MEM); - - pci_set_region(hose->regions + 1, CONFIG_SYS_PCI_IO_BUS, CONFIG_SYS_PCI_IO_PHYS, - CONFIG_SYS_PCI_IO_SIZE, PCI_REGION_IO); - - pci_set_region(hose->regions + 2, CONFIG_SYS_PCI_SYS_MEM_BUS, - CONFIG_SYS_PCI_SYS_MEM_PHYS, CONFIG_SYS_PCI_SYS_MEM_SIZE, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - hose->region_count = 3; - - hose->cfg_addr = &(pci->car); - hose->cfg_data = (volatile unsigned char *)CONFIG_SYS_PCI_CFG_BUS; - - pci_set_ops(hose, pci_read_cfg_byte, pci_read_cfg_word, - pci_read_cfg_dword, pci_write_cfg_byte, pci_write_cfg_word, - pci_write_cfg_dword); - - /* Hose scan */ - pci_register_hose(hose); - hose->last_busno = pci_hose_scan(hose); -} -#endif /* CONFIG_PCI */ |