diff options
Diffstat (limited to 'src/southbridge/amd/cs5536/cs5536_ide.c')
| -rw-r--r-- | src/southbridge/amd/cs5536/cs5536_ide.c | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/src/southbridge/amd/cs5536/cs5536_ide.c b/src/southbridge/amd/cs5536/cs5536_ide.c index 284b5037d8..1f4a2dbfd6 100644 --- a/src/southbridge/amd/cs5536/cs5536_ide.c +++ b/src/southbridge/amd/cs5536/cs5536_ide.c @@ -1,3 +1,22 @@ +/* +* This file is part of the LinuxBIOS project. +* +* Copyright (C) 2007 Advanced Micro Devices +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License version 2 as +* published by the Free Software Foundation. +* +* 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 <console/console.h> #include <device/device.h> #include <device/pci.h> @@ -5,26 +24,45 @@ #include <device/pci_ops.h> #include "cs5536.h" +#define IDE_CFG 0x40 + #define CHANEN (1L << 1) + #define PWB (1L << 14) + #define CABLE (1L << 16) +#define IDE_DTC 0x48 +#define IDE_CAST 0x4C +#define IDE_ETC 0x50 + static void ide_init(struct device *dev) { + uint32_t ide_cfg; + printk_spew("cs5536_ide: %s\n", __FUNCTION__); + /* GPIO and IRQ setup are handled in the main chipset code. */ + + // Enable the channel and Post Write Buffer + // NOTE: Only 32-bit writes to the data buffer are allowed when PWB is set + ide_cfg = pci_read_config32(dev, IDE_CFG); + ide_cfg |= CHANEN | PWB; + pci_write_config8(dev, IDE_CFG, ide_cfg); } static void ide_enable(struct device *dev) { + printk_spew("cs5536_ide: %s\n", __FUNCTION__); + } static struct device_operations ide_ops = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, - .init = ide_init, - .enable = ide_enable, + .init = ide_init, + .enable = 0, }; static struct pci_driver ide_driver __pci_driver = { - .ops = &ide_ops, + .ops = &ide_ops, .vendor = PCI_VENDOR_ID_AMD, .device = PCI_DEVICE_ID_AMD_CS5536_IDE, }; |