diff options
Diffstat (limited to 'src/southbridge/amd/cs5530/cs5530.c')
| -rw-r--r-- | src/southbridge/amd/cs5530/cs5530.c | 133 |
1 files changed, 50 insertions, 83 deletions
diff --git a/src/southbridge/amd/cs5530/cs5530.c b/src/southbridge/amd/cs5530/cs5530.c index f70918e566..1e18c0671a 100644 --- a/src/southbridge/amd/cs5530/cs5530.c +++ b/src/southbridge/amd/cs5530/cs5530.c @@ -1,92 +1,59 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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 + */ + +/* Datasheet: + * - Name: Geode CS5530A I/O Companion Multi-Function South Bridge + * - URL: http://www.national.com/pf/CS/CS5530A.html + * - PDF: http://www.national.com/ds.cgi/CS/CS5530A.pdf + * - Revision: 1.1 (May 2001) + */ + +/* Datasheet: + * - Name: AMD Geode CS5530A Companion Device Data Book + * - URL: http://www.amd.com/us-en/ConnectivitySolutions/ProductInformation/0,,50_2330_9863_9919,00.html + * - PDF: http://www.amd.com/files/connectivitysolutions/geode/5530a_db_v11.pdf + * - Date: October 2003 + * - Publication ID: May 2001, Revision 1.1 + */ + +/* Datasheet: + * - Name: AMD Geode Solutions + * Integrated Processors, Companion Devices, and System Platforms + * (Geode CS5530 I/O Companion Multi-Function South Bridge) + * - URL: http://www.amd.com/us-en/ConnectivitySolutions/ProductInformation/0,,50_2330_9863_9919,00.html + * - PDF: http://www.amd.com/files/connectivitysolutions/geode/5530_db_v41.pdf + * - Date: September 2004 + */ + +/* Note: The CS3350 / CS3350A are mostly identical. This code handles both. */ -#include <arch/io.h> +#include <console/console.h> #include <device/device.h> #include <device/pci.h> -#include <device/pci_ops.h> -#include <device/pci_ids.h> -#include <console/console.h> #include "cs5530.h" -static void nvram_on(struct device *dev) -{ -#if 0 - volatile char *flash = (volatile unsigned char *)0xFFFc0000; - unsigned char id1, id2; -#endif - unsigned char reg; - - /* Enable writes to flash at top of memory */ - pci_write_config8(dev, 0x52, 0xee); - - /* Set positive decode on ROM */ - /* Also, there is no apparent reason to turn off the devoce on the */ - /* IDE devices */ - - reg = pci_read_config8(dev, 0x5b); - reg |= 1 << 5; /* ROM Decode */ - reg |= 1 << 3; /* Primary IDE decode */ - reg |= 1 << 4; /* Secondary IDE decode */ - - pci_write_config8(dev, 0x5b, reg); - -#if 0 // just to test if the flash is accessible! - *(flash + 0x555) = 0xaa; - *(flash + 0x2aa) = 0x55; - *(flash + 0x555) = 0x90; - - id1 = *(volatile unsigned char *) flash; - id2 = *(volatile unsigned char *) (flash + 1); - - *flash = 0xf0; - - printk_debug("Flash device: MFGID %02x, DEVID %02x\n", id1, id2); -#endif -} - - -static void southbridge_init(struct device *dev) +void cs5530_enable(device_t dev) { - printk_spew("cs5530: %s\n", __FUNCTION__); - nvram_on(dev); } -/* -static void dump_south(struct device *dev) -{ - int i, j; - - for(i=0; i<256; i+=16) { - printk_debug("0x%02x: ", i); - for(j=0; j<16; j++) - printk_debug("%02x ", pci_read_config8(dev, i+j)); - printk_debug("\n"); - } -} -*/ - -static void southbridge_enable(struct device *dev) -{ - printk_spew("%s: dev is %p\n", __FUNCTION__, dev); -} - -static void cs5530_pci_dev_enable_resources(device_t dev) -{ - printk_spew("cs5530.c: %s()\n", __FUNCTION__); - pci_dev_enable_resources(dev); - enable_childrens_resources(dev); -} - -static struct device_operations southbridge_ops = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = cs5530_pci_dev_enable_resources, - .init = southbridge_init, - .enable = southbridge_enable, - .scan_bus = scan_static_bus, -}; - -static struct pci_driver cs5530_pci_driver __pci_driver = { - .ops = &southbridge_ops, - .vendor = PCI_VENDOR_ID_CYRIX, - .device = PCI_DEVICE_ID_CYRIX_5530_LEGACY, +struct chip_operations southbridge_amd_cs5530_ops = { + CHIP_NAME("AMD Geode CS5530/CS5530A I/O Companion Southbridge") + .enable_dev = cs5530_enable, }; |