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author | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
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committer | Markus Klotzbuecher <mk@denx.de> | 2008-01-09 13:57:10 +0100 |
commit | 6a40ef62c4300e9f606deef0a4618cbc4b514a51 (patch) | |
tree | c01bdd0e773d092f13af05567fa92fb9072df9e0 /board/freescale/common/via.c | |
parent | 245a362ad3c0c1b84fccc9fec7b623eb14f6e502 (diff) | |
parent | 07eb02687f008721974a2fb54cd7fdc28033ab3c (diff) | |
download | u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.zip u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.gz u-boot-imx-6a40ef62c4300e9f606deef0a4618cbc4b514a51.tar.bz2 |
Merge git://www.denx.de/git/u-boot
Conflicts:
board/tqm5200/tqm5200.c
Diffstat (limited to 'board/freescale/common/via.c')
-rw-r--r-- | board/freescale/common/via.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/board/freescale/common/via.c b/board/freescale/common/via.c new file mode 100644 index 0000000..4a63d77 --- /dev/null +++ b/board/freescale/common/via.c @@ -0,0 +1,109 @@ +/* + * Copyright 2006 Freescale Semiconductor. + * + * 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 <pci.h> + +/* Config the VIA chip */ +void mpc85xx_config_via(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pci_dev_t bridge; + unsigned int cmdstat; + + /* Enable USB and IDE functions */ + pci_hose_write_config_byte(hose, dev, 0x48, 0x08); + + pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat); + cmdstat |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY| PCI_COMMAND_MASTER; + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + + /* + * Force the backplane P2P bridge to have a window + * open from 0x00000000-0x00001fff in PCI I/O space. + * This allows legacy I/O (i8259, etc) on the VIA + * southbridge to be accessed. + */ + bridge = PCI_BDF(0,BRIDGE_ID,0); + pci_hose_write_config_byte(hose, bridge, PCI_IO_BASE, 0); + pci_hose_write_config_word(hose, bridge, PCI_IO_BASE_UPPER16, 0); + pci_hose_write_config_byte(hose, bridge, PCI_IO_LIMIT, 0x10); + pci_hose_write_config_word(hose, bridge, PCI_IO_LIMIT_UPPER16, 0); +} + +/* Function 1, IDE */ +void mpc85xx_config_via_usbide(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pciauto_config_device(hose, dev); + /* + * Since the P2P window was forced to cover the fixed + * legacy I/O addresses, it is necessary to manually + * place the base addresses for the IDE and USB functions + * within this window. + */ + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1ff8); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_1, 0x1ff4); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_2, 0x1fe8); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_3, 0x1fe4); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1fd0); +} + +/* Function 2, USB ports 0-1 */ +void mpc85xx_config_via_usb(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pciauto_config_device(hose, dev); + + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1fa0); +} + +/* Function 3, USB ports 2-3 */ +void mpc85xx_config_via_usb2(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pciauto_config_device(hose, dev); + + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1f80); +} + +/* Function 5, Power Management */ +void mpc85xx_config_via_power(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pciauto_config_device(hose, dev); + + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1e00); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_1, 0x1dfc); + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_2, 0x1df8); +} + +/* Function 6, AC97 Interface */ +void mpc85xx_config_via_ac97(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *tab) +{ + pciauto_config_device(hose, dev); + + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1c00); +} |