openwrt/target/linux/brcm-2.4/patches/012-aec62xx.patch

--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -3,6 +3,8 @@
  *
  * Copyright (C) 1999-2002	Andre Hedrick <andre@linux-ide.org>
  *
+ * With Broadcom 4780 patches
+ *
  */
 
 #include <linux/module.h>
@@ -329,7 +331,11 @@ static int aec62xx_config_drive_xfer_rat
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct hd_driveid *id	= drive->id;
 
+#ifndef CONFIG_BCM947XX
 	if ((id->capability & 1) && drive->autodma) {
+#else
+	if (1) {
+#endif
 		/* Consult the list of known "bad" drives */
 		if (hwif->ide_dma_bad_drive(drive))
 			goto fast_ata_pio;
@@ -414,10 +420,60 @@ static unsigned int __init init_chipset_
 {
 	int bus_speed = system_bus_clock();
 
+#ifndef CONFIG_BCM947XX
 	if (dev->resource[PCI_ROM_RESOURCE].start) {
 		pci_write_config_dword(dev, PCI_ROM_ADDRESS, dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 		printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name, dev->resource[PCI_ROM_RESOURCE].start);
 	}
+#else
+	if (dev->resource[PCI_ROM_RESOURCE].start) {
+		pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+					dev->resource[PCI_ROM_RESOURCE].
+					start | PCI_ROM_ADDRESS_ENABLE);
+	} else {
+		pci_write_config_dword(dev, PCI_ROM_ADDRESS,
+					dev->resource[PCI_ROM_RESOURCE].
+					start);
+	}
+
+	/* Set IDE controller parameters manually - FIXME: replace magic values */
+	{
+		byte setting;
+
+		pci_write_config_word(dev, PCI_COMMAND, 0x0007);
+		//pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x5A);
+		pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x13);
+
+		pci_write_config_byte(dev, 0x40, 0x31);
+		pci_write_config_byte(dev, 0x41, 0x31);
+		pci_write_config_byte(dev, 0x42, 0x31);
+		pci_write_config_byte(dev, 0x43, 0x31);
+		// Set IDE Command Speed
+		pci_write_config_byte(dev, 0x48, 0x31);
+
+		// Disable WriteSubSysID & PIOROM
+		pci_read_config_byte(dev, 0x49, &setting);
+		setting &= 0x07;
+		pci_write_config_byte(dev, 0x49, setting);
+
+		// Enable PCI burst & INTA & PCI memory read multiple, FIFO threshold=80
+		pci_read_config_byte(dev, 0x4A, &setting);
+		//setting = (setting & 0xFE) | 0xA8;
+		setting = (setting & 0xFE) | 0xD8;
+		setting = (setting & 0xF7);
+		pci_write_config_byte(dev, 0x4A, setting);
+
+		//pci_write_config_byte(dev, 0x4B, 0x20);
+		pci_write_config_byte(dev, 0x4B, 0x2C);
+		//pci_write_config_byte(dev, 0x4B, 0x0C);
+
+		// Set PreRead count: 512 byte
+		pci_write_config_byte(dev, 0x4C, 0);
+		pci_write_config_word(dev, 0x4D, 0x0002);
+		pci_write_config_byte(dev, 0x54, 0);
+		pci_write_config_word(dev, 0x55, 0x0002);
+	}
+#endif
 
 #if defined(DISPLAY_AEC62XX_TIMINGS) && defined(CONFIG_PROC_FS)
 	aec_devs[n_aec_devs++] = dev;
@@ -500,6 +556,7 @@ static void __init init_setup_aec62xx (s
 
 static void __init init_setup_aec6x80 (struct pci_dev *dev, ide_pci_device_t *d)
 {
+#ifndef CONFIG_BCM947XX /* Causes OOPS on BCM4780 */
 	unsigned long bar4reg = pci_resource_start(dev, 4);
 
 	if (inb(bar4reg+2) & 0x10) {
@@ -512,6 +569,7 @@ static void __init init_setup_aec6x80 (s
 			strcpy(d->name, "AEC6280R");
 	}
 
+#endif
 	ide_setup_pci_device(dev, d);
 }