diff options
Diffstat (limited to 'drivers/tsi108_pci.c')
| -rw-r--r-- | drivers/tsi108_pci.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/tsi108_pci.c b/drivers/tsi108_pci.c deleted file mode 100644 index d5f11e4..0000000 --- a/drivers/tsi108_pci.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * (C) Copyright 2004 Tundra Semiconductor Corp. - * Alex Bounine <alexandreb@tundra.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 initialisation for the Tsi108 EMU board. - */ - -#include <config.h> - -#ifdef CONFIG_TSI108_PCI - -#include <common.h> -#include <pci.h> -#include <asm/io.h> -#include <tsi108.h> -#ifdef CONFIG_OF_FLAT_TREE -#include <ft_build.h> -#endif - -struct pci_controller local_hose; - -void tsi108_clear_pci_error (void) -{ - u32 err_stat, err_addr, pci_stat; - - /* - * Quietly clear errors signalled as result of PCI/X configuration read - * requests. - */ - /* Read PB Error Log Registers */ - err_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE + - TSI108_PB_REG_OFFSET + PB_ERRCS); - err_addr = *(volatile u32 *)(CFG_TSI108_CSR_BASE + - TSI108_PB_REG_OFFSET + PB_AERR); - if (err_stat & PB_ERRCS_ES) { - /* Clear PCI/X bus errors if applicable */ - if ((err_addr & 0xFF000000) == CFG_PCI_CFG_BASE) { - /* Clear error flag */ - *(u32 *) (CFG_TSI108_CSR_BASE + - TSI108_PB_REG_OFFSET + PB_ERRCS) = - PB_ERRCS_ES; - - /* Clear read error reported in PB_ISR */ - *(u32 *) (CFG_TSI108_CSR_BASE + - TSI108_PB_REG_OFFSET + PB_ISR) = - PB_ISR_PBS_RD_ERR; - - /* Clear errors reported by PCI CSR (Normally Master Abort) */ - pci_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE + - TSI108_PCI_REG_OFFSET + - PCI_CSR); - *(volatile u32 *)(CFG_TSI108_CSR_BASE + - TSI108_PCI_REG_OFFSET + PCI_CSR) = - pci_stat; - - *(volatile u32 *)(CFG_TSI108_CSR_BASE + - TSI108_PCI_REG_OFFSET + - PCI_IRP_STAT) = PCI_IRP_STAT_P_CSR; - } - } - - return; -} - -unsigned int __get_pci_config_dword (u32 addr) -{ - unsigned int retval; - - __asm__ __volatile__ (" lwbrx %0,0,%1\n" - "1: eieio\n" - "2:\n" - ".section .fixup,\"ax\"\n" - "3: li %0,-1\n" - " b 2b\n" - ".section __ex_table,\"a\"\n" - " .align 2\n" - " .long 1b,3b\n" - ".text":"=r"(retval):"r"(addr)); - - return (retval); -} - -static int tsi108_read_config_dword (struct pci_controller *hose, - pci_dev_t dev, int offset, u32 * value) -{ - dev &= (CFG_PCI_CFG_SIZE - 1); - dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc)); - *value = __get_pci_config_dword(dev); - if (0xFFFFFFFF == *value) - tsi108_clear_pci_error (); - return 0; -} - -static int tsi108_write_config_dword (struct pci_controller *hose, - pci_dev_t dev, int offset, u32 value) -{ - dev &= (CFG_PCI_CFG_SIZE - 1); - dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc)); - - out_le32 ((volatile unsigned *)dev, value); - - return 0; -} - -void pci_init_board (void) -{ - struct pci_controller *hose = (struct pci_controller *)&local_hose; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - pci_set_region (hose->regions + 0, - CFG_PCI_MEMORY_BUS, - CFG_PCI_MEMORY_PHYS, - CFG_PCI_MEMORY_SIZE, PCI_REGION_MEM | PCI_REGION_MEMORY); - - /* PCI memory space */ - pci_set_region (hose->regions + 1, - CFG_PCI_MEM_BUS, - CFG_PCI_MEM_PHYS, CFG_PCI_MEM_SIZE, PCI_REGION_MEM); - - /* PCI I/O space */ - pci_set_region (hose->regions + 2, - CFG_PCI_IO_BUS, - CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO); - - hose->region_count = 3; - - pci_set_ops (hose, - pci_hose_read_config_byte_via_dword, - pci_hose_read_config_word_via_dword, - tsi108_read_config_dword, - pci_hose_write_config_byte_via_dword, - pci_hose_write_config_word_via_dword, - tsi108_write_config_dword); - - pci_register_hose (hose); - - hose->last_busno = pci_hose_scan (hose); - - debug ("Done PCI initialization\n"); - return; -} - -#ifdef CONFIG_OF_FLAT_TREE -void -ft_pci_setup (void *blob, bd_t *bd) -{ - u32 *p; - int len; - - p = (u32 *)ft_get_prop (blob, "/" OF_TSI "/pci@1000/bus-range", &len); - if (p != NULL) { - p[0] = local_hose.first_busno; - p[1] = local_hose.last_busno; - } - -} -#endif - -#endif /* CONFIG_TSI108_PCI */ |