diff options
Diffstat (limited to 'u-boot/drivers/pci/pci_sh4.c')
| -rw-r--r-- | u-boot/drivers/pci/pci_sh4.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/u-boot/drivers/pci/pci_sh4.c b/u-boot/drivers/pci/pci_sh4.c new file mode 100644 index 0000000..62915b6 --- /dev/null +++ b/u-boot/drivers/pci/pci_sh4.c @@ -0,0 +1,98 @@ +/* + * SH4 PCI Controller (PCIC) for U-Boot. + * (C) Dustin McIntire (dustin@sensoria.com) + * (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> + * (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> + * + * u-boot/arch/sh/cpu/sh4/pci-sh4.c + * + * 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 + */ + +#include <common.h> + +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/pci.h> +#include <pci.h> + +int pci_sh4_init(struct pci_controller *hose) +{ + hose->first_busno = 0; + hose->region_count = 0; + hose->last_busno = 0xff; + + /* PCI memory space */ + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + hose->region_count++; + + /* PCI IO space */ + pci_set_region(hose->regions + 1, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + hose->region_count++; + +#if defined(CONFIG_PCI_SYS_BUS) + /* PCI System Memory space */ + pci_set_region(hose->regions + 2, + CONFIG_PCI_SYS_BUS, + CONFIG_PCI_SYS_PHYS, + CONFIG_PCI_SYS_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + hose->region_count++; +#endif + + udelay(1000); + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + pci_sh4_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + pci_sh4_write_config_dword); + + pci_register_hose(hose); + + udelay(1000); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + hose->last_busno = pci_hose_scan(hose); + return 0; +} + +int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 0; +} + +#ifdef CONFIG_PCI_SCAN_SHOW +int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 1; +} +#endif /* CONFIG_PCI_SCAN_SHOW */ |