From c61120c340f2916d331db65fe565868a90cd9779 Mon Sep 17 00:00:00 2001 From: Michael-Luke Jones <mlj28@cam.ac.uk> Date: Mon, 20 Nov 2006 22:30:21 +0100 Subject: [PATCH] Old IDE, fix SATA detection for cabling This patch is identical to that introduced in 1a1276e7b6cba549553285f74e87f702bfff6fac to the Linus' 2.6 development tree by Alan Cox. 'This is based on the proposed patches flying around but also checks that the device in question is new enough to have word 93 rather thanb blindly assuming word 93 == 0 means SATA (see ATA-5, ATA-7)' -- Alan Cox Required for my SATA drive on an Asus Pundit-R to operate above 33MBps. Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk> Signed-off-by: Adrian Bunk <bunk@stusta.de> --- drivers/ide/ide-iops.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index b72dde70840a..10467dad335b 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -597,6 +597,10 @@ u8 eighty_ninty_three (ide_drive_t *drive) { if(HWIF(drive)->udma_four == 0) return 0; + + /* Check for SATA but only if we are ATA5 or higher */ + if (drive->id->hw_config == 0 && (drive->id->major_rev_num & 0x7FE0)) + return 1; if (!(drive->id->hw_config & 0x6000)) return 0; #ifndef CONFIG_IDEDMA_IVB -- 2.30.9