brcm47xx: describe 610-pci_ide_fix.patch
It was initially commited in r20924. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 47056
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@ -1,3 +1,30 @@
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From: b.sander
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Subject: [PATCH] pci: IDE fix
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These are standard probing messages when using pdc202xx_old:
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pdc202xx_old 0000:00:01.0: IDE controller (0x105a:0x0d30 rev 0x02)
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PCI: Enabling device 0000:00:01.0 (0004 -> 0007)
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PCI: Fixing up device 0000:00:01.0
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0000:00:01.0: (U)DMA Burst Bit DISABLED Primary PCI Mode Secondary PCI Mode.
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0000:00:01.0: FORCING BURST BIT 0x00->0x01 ACTIVE
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pdc202xx_old 0000:00:01.0: 100% native mode on irq 6
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With the default MAX_HWIFS value after above we get:
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ide2: BM-DMA at 0x0400-0x0407
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ide3: BM-DMA at 0x0408-0x040f
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Probing IDE interface ide2...
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hde: CF500, CFA DISK drive
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As you can see it's ide2 + ide3 and hde.
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With this patch applied we get:
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ide0: BM-DMA at 0x0400-0x0407
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ide1: BM-DMA at 0x0408-0x040f
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Probing IDE interface ide0...
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hda: CF500, CFA DISK drive
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This fixes OpenWrt ticket #7061: https://dev.openwrt.org/ticket/7061
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---
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--- a/include/linux/ide.h
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+++ b/include/linux/ide.h
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@@ -191,7 +191,11 @@ static inline void ide_std_init_ports(st
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