From 47fedb5947414d3b46786a94186b123295ba0f48 Mon Sep 17 00:00:00 2001 From: florian Date: Sun, 15 Mar 2009 12:56:39 +0000 Subject: [rb532] add 2.6.28 patches and kernel config git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14884 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../005-pata_rb532_cf_4bytes_rw.patch | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 target/linux/rb532/patches-2.6.28/005-pata_rb532_cf_4bytes_rw.patch (limited to 'target/linux/rb532/patches-2.6.28/005-pata_rb532_cf_4bytes_rw.patch') diff --git a/target/linux/rb532/patches-2.6.28/005-pata_rb532_cf_4bytes_rw.patch b/target/linux/rb532/patches-2.6.28/005-pata_rb532_cf_4bytes_rw.patch new file mode 100644 index 000000000..1af14ad6f --- /dev/null +++ b/target/linux/rb532/patches-2.6.28/005-pata_rb532_cf_4bytes_rw.patch @@ -0,0 +1,33 @@ +* rename the offset definition to avoid abiguity with the standard ATA + IO address +* read and write four bytes at once like the original driver does +* use writesl() and readsl() which implicitly iterate over the data + +This patch assumes buflen to be a multiple of four, which is true for +ATA devices. ATAPI support is not known, though unlikely, as the +original driver always transfers 512 Bytes at once. + +Signed-off-by: Phil Sutter +Acked-by: Sergei Shtyltov +--- +diff -urN linux-2.6.28.7/drivers/ata/pata_rb532_cf.c linux-2.6.28.7.new/drivers/ata/pata_rb532_cf.c +--- linux-2.6.28.7/drivers/ata/pata_rb532_cf.c 2009-03-15 13:24:24.000000000 +0100 ++++ linux-2.6.28.7.new/drivers/ata/pata_rb532_cf.c 2009-03-15 13:26:19.000000000 +0100 +@@ -82,13 +82,10 @@ + void __iomem *ioaddr = ap->ioaddr.data_addr; + int retlen = buflen; + +- if (write_data) { +- for (; buflen > 0; buflen--, buf++) +- writeb(*buf, ioaddr); +- } else { +- for (; buflen > 0; buflen--, buf++) +- *buf = readb(ioaddr); +- } ++ if (write_data) ++ writesl(ioaddr, buf, buflen / sizeof(u32)); ++ else ++ readsl(ioaddr, buf, buflen / sizeof(u32)); + + rb532_pata_finish_io(adev->link->ap); + return retlen; -- cgit v1.2.3