diff options
Diffstat (limited to 'src/southbridge/ti/pci1x2x/pci1x2x.c')
| -rw-r--r-- | src/southbridge/ti/pci1x2x/pci1x2x.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/southbridge/ti/pci1x2x/pci1x2x.c b/src/southbridge/ti/pci1x2x/pci1x2x.c new file mode 100644 index 0000000000..42ec718e97 --- /dev/null +++ b/src/southbridge/ti/pci1x2x/pci1x2x.c @@ -0,0 +1,84 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Marc Bertens <mbertens@xs4all.nl> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <console/console.h> + +#if ( !defined( CONFIG_TI_PCMCIA_CARDBUS_CMDR ) || \ + !defined( CONFIG_TI_PCMCIA_CARDBUS_CLSR ) || \ + !defined( CONFIG_TI_PCMCIA_CARDBUS_CLTR ) || \ + !defined( CONFIG_TI_PCMCIA_CARDBUS_BCR ) || \ + !defined( CONFIG_TI_PCMCIA_CARDBUS_SCR ) || \ + !defined( CONFIG_TI_PCMCIA_CARDBUS_MRR ) ) +#error "you must supply these values in your mainboard-specific Kconfig file" +#endif + +static void ti_pci1x2y_init(struct device *dev) +{ + printk(BIOS_INFO, "Init of Texas Instruments PCI1x2x PCMCIA/CardBus controller\n"); + // Command register (offset 04) + pci_write_config16( dev, 0x04, CONFIG_TI_PCMCIA_CARDBUS_CMDR ); + // Cache Line Size Register (offset 0x0C) + pci_write_config8( dev, 0x0C, CONFIG_TI_PCMCIA_CARDBUS_CLSR ); + // CardBus latency timer register (offset 1B) + pci_write_config8( dev, 0x1B, CONFIG_TI_PCMCIA_CARDBUS_CLTR ); + // Bridge control register (offset 3E) + pci_write_config16( dev, 0x3E, CONFIG_TI_PCMCIA_CARDBUS_BCR ); + /** Enable change sub-vendor id + * Clear the bit 5 to enable to write to the sub-vendor/device ids at 40 and 42 */ + pci_write_config32( dev, 0x80, 0x10 ); + pci_write_config32( dev, 0x40, PCI_VENDOR_ID_NOKIA ); + // Now write the correct value for SCR + // System Control Register (offset 0x80) + pci_write_config32( dev, 0x80, CONFIG_TI_PCMCIA_CARDBUS_SCR ); + // Multifunction routing register + pci_write_config32( dev, 0x8C, CONFIG_TI_PCMCIA_CARDBUS_MRR ); + // Set Device Control Register (0x92) accordingly + pci_write_config8( dev, 0x92, pci_read_config8( dev, 0x92 ) | 0x02 ); + return; +} + +static struct device_operations ti_pci1x2y_ops = { + .read_resources = NULL, //pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = ti_pci1x2y_init, + .scan_bus = 0, +}; + +static const struct pci_driver ti_pci1225_driver __pci_driver = { + .ops = &ti_pci1x2y_ops, + .vendor = PCI_VENDOR_ID_TI, + .device = PCI_DEVICE_ID_TI_1225, +}; + +static const struct pci_driver ti_pci1420_driver __pci_driver = { + .ops = &ti_pci1x2y_ops, + .vendor = PCI_VENDOR_ID_TI, + .device = PCI_DEVICE_ID_TI_1420, +}; + +static const struct pci_driver ti_pci1520_driver __pci_driver = { + .ops = &ti_pci1x2y_ops, + .vendor = PCI_VENDOR_ID_TI, + .device = PCI_DEVICE_ID_TI_1420, +}; |