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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#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(BIOS_SPEW, "cs5536_ide: %s\n", __func__);
/* 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_config32(dev, IDE_CFG, ide_cfg);
}
static struct device_operations ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ide_init,
.enable = 0,
};
static const struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_DEVICE_ID_AMD_CS5536_B0_IDE,
};
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