This patch add support PCI of SuperH base code and SH7780 specific code. Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>master
Yusuke Goda
16 years ago
committed by
Nobuhiro Iwamatsu
parent
b55523efff
commit
1a2334a4eb
@ -0,0 +1,81 @@ |
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/*
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* SH4 PCI Controller (PCIC) for U-Boot. |
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* (C) Dustin McIntire (dustin@sensoria.com) |
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* (C) 2007 Nobuhiro Iwamatsu |
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* (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> |
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* |
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* u-boot/cpu/sh4/pci-sh4.c |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#if defined(CONFIG_PCI) && \ |
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defined(CONFIG_SH4_PCI) |
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#include <asm/processor.h> |
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#include <asm/io.h> |
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#include <asm/pci.h> |
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#include <pci.h> |
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int pci_sh4_init(struct pci_controller *hose) |
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{ |
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hose->first_busno = 0; |
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hose->region_count = 0; |
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hose->last_busno = 0xff; |
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/* PCI memory space */ |
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pci_set_region(hose->regions + 0, |
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CONFIG_PCI_MEM_BUS, |
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CONFIG_PCI_MEM_PHYS, |
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CONFIG_PCI_MEM_SIZE, |
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PCI_REGION_MEM); |
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hose->region_count++; |
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/* PCI IO space */ |
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pci_set_region(hose->regions + 1, |
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CONFIG_PCI_IO_BUS, |
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CONFIG_PCI_IO_PHYS, |
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CONFIG_PCI_IO_SIZE, |
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PCI_REGION_IO); |
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hose->region_count++; |
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udelay(1000); |
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pci_set_ops(hose, |
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pci_hose_read_config_byte_via_dword, |
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pci_hose_read_config_word_via_dword, |
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pci_sh4_read_config_dword, |
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pci_hose_write_config_byte_via_dword, |
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pci_hose_write_config_word_via_dword, |
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pci_sh4_write_config_dword); |
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pci_register_hose(hose); |
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udelay(1000); |
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#ifdef CONFIG_PCI_SCAN_SHOW |
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printf("PCI: Bus Dev VenId DevId Class Int\n"); |
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#endif |
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hose->last_busno = pci_hose_scan(hose); |
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return 0; |
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} |
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#endif /* defined(CONFIG_PCI) && defined(CONFIG_SH4_PCI) */ |
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@ -0,0 +1,111 @@ |
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/*
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* SH7780 PCI Controller (PCIC) for U-Boot. |
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* (C) Dustin McIntire (dustin@sensoria.com) |
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* (C) 2007 Nobuhiro Iwamatsu |
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* (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#if defined(CONFIG_PCI) && defined(CONFIG_SH4_PCI) \ |
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&& defined(CONFIG_CPU_SH7780) |
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#include <asm/processor.h> |
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#include <asm/io.h> |
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#include <pci.h> |
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#define SH7780_VENDOR_ID 0x1912 |
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#define SH7780_DEVICE_ID 0x0002 |
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#define SH7780_PCICR_PREFIX 0xA5000000 |
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#define SH7780_PCICR_PFCS 0x00000800 |
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#define SH7780_PCICR_FTO 0x00000400 |
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#define SH7780_PCICR_PFE 0x00000200 |
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#define SH7780_PCICR_TBS 0x00000100 |
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#define SH7780_PCICR_ARBM 0x00000040 |
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#define SH7780_PCICR_IOCS 0x00000004 |
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#define SH7780_PCICR_PRST 0x00000002 |
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#define SH7780_PCICR_CFIN 0x00000001 |
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#define p4_in(addr) *((vu_long *)addr) |
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#define p4_out(data,addr) *(vu_long *)(addr) = (data) |
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#define p4_inw(addr) *((vu_short *)addr) |
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#define p4_outw(data,addr) *(vu_short *)(addr) = (data) |
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int pci_sh4_read_config_dword(struct pci_controller *hose, |
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pci_dev_t dev, int offset, u32 *value) |
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{ |
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u32 par_data = 0x80000000 | dev; |
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p4_out(par_data | (offset & 0xfc), SH7780_PCIPAR); |
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*value = p4_in(SH7780_PCIPDR); |
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return 0; |
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} |
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int pci_sh4_write_config_dword(struct pci_controller *hose, |
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pci_dev_t dev, int offset, u32 value) |
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{ |
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u32 par_data = 0x80000000 | dev; |
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p4_out(par_data | (offset & 0xfc), SH7780_PCIPAR); |
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p4_out(value, SH7780_PCIPDR); |
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return 0; |
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} |
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int pci_sh7780_init(struct pci_controller *hose) |
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{ |
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p4_out(0x01, SH7780_PCIECR); |
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if (p4_inw(SH7780_PCIVID) != SH7780_VENDOR_ID |
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&& p4_inw(SH7780_PCIDID) != SH7780_DEVICE_ID){ |
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printf("PCI: Unknown PCI host bridge.\n"); |
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return; |
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} |
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printf("PCI: SH7780 PCI host bridge found.\n"); |
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/* Toggle PCI reset pin */ |
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p4_out((SH7780_PCICR_PREFIX | SH7780_PCICR_PRST), SH7780_PCICR); |
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udelay(100000); |
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p4_out(SH7780_PCICR_PREFIX, SH7780_PCICR); |
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p4_outw(0x0047, SH7780_PCICMD); |
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p4_out(0x07F00001, SH7780_PCILSR0); |
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p4_out(0x08000000, SH7780_PCILAR0); |
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p4_out(0x00000000, SH7780_PCILSR1); |
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p4_out(0, SH7780_PCILAR1); |
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p4_out(0x08000000, SH7780_PCIMBAR0); |
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p4_out(0x00000000, SH7780_PCIMBAR1); |
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p4_out(0xFD000000, SH7780_PCIMBR0); |
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p4_out(0x00FC0000, SH7780_PCIMBMR0); |
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/* if use Operand Cache then enable PCICSCR Soonp bits. */ |
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p4_out(0x08000000, SH7780_PCICSAR0); |
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p4_out(0x0000001B, SH7780_PCICSCR0); /* Snoop bit :On */ |
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p4_out((SH7780_PCICR_PREFIX | SH7780_PCICR_CFIN | SH7780_PCICR_ARBM |
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| SH7780_PCICR_FTO | SH7780_PCICR_PFCS | SH7780_PCICR_PFE), |
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SH7780_PCICR); |
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pci_sh4_init(hose); |
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return 0; |
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} |
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#endif /* defined(CONFIG_PCI) && defined(CONFIG_CPU_SH7780) */ |
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@ -0,0 +1,46 @@ |
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/*
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* SH4 PCI Controller (PCIC) for U-Boot. |
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* (C) Dustin McIntire (dustin@sensoria.com) |
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* (C) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> |
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* (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> |
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* |
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* u-boot/include/asm-sh/pci.h |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#ifndef _ASM_PCI_H_ |
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#define _ASM_PCI_H_ |
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#include <pci.h> |
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#if defined(CONFIG_CPU_SH7780) |
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int pci_sh7780_init(struct pci_controller *hose); |
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#else |
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#error "Not support PCI." |
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#endif |
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/* PCI dword read for sh4 */ |
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int pci_sh4_read_config_dword(struct pci_controller *hose, |
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pci_dev_t dev, int offset, u32 *value); |
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/* PCI dword write for sh4 */ |
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int pci_sh4_write_config_dword(struct pci_controller *hose, |
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pci_dev_t dev, int offset, u32 value); |
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#endif /* _ASM_PCI_H_ */ |
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