From: Sergei Shtylyov Date: Sat, 5 May 2007 20:03:50 +0000 (+0200) Subject: aec62xx: fix PIO/DMA setup issues X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=826a1b6502d0d1d67fc41043fc831e90f2ef5835;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git aec62xx: fix PIO/DMA setup issues Teach the driver's tuneproc() method to do PIO auto-runing properly since it treated 5 instead of 255 as auto-tune request, and also passed the mode limit of PIO5 to ide_get_best_pio_mode() despite supporting up to PIO4 only. While at it, also: - remove the driver's wrong claim about supporting SWDMA modes; - stop hooking ide_dma_timeout() method as the handler clearly doesn't fit for the task... Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index 990eafe5ea11..73bdf64dbbfc 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -1,7 +1,8 @@ /* - * linux/drivers/ide/pci/aec62xx.c Version 0.11 March 27, 2002 + * linux/drivers/ide/pci/aec62xx.c Version 0.21 Apr 21, 2007 * * Copyright (C) 1999-2002 Andre Hedrick + * Copyright (C) 2007 MontaVista Software, Inc. * */ @@ -193,18 +194,8 @@ static int config_chipset_for_dma (ide_drive_t *drive) static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio) { - u8 speed = 0; - u8 new_pio = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL); - - switch(pio) { - case 5: speed = new_pio; break; - case 4: speed = XFER_PIO_4; break; - case 3: speed = XFER_PIO_3; break; - case 2: speed = XFER_PIO_2; break; - case 1: speed = XFER_PIO_1; break; - default: speed = XFER_PIO_0; break; - } - (void) aec62xx_tune_chipset(drive, speed); + pio = ide_get_best_pio_mode(drive, pio, 4, NULL); + (void) aec62xx_tune_chipset(drive, pio + XFER_PIO_0); } static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive) @@ -213,7 +204,7 @@ static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive) return 0; if (ide_use_fast_pio(drive)) - aec62xx_tune_drive(drive, 5); + aec62xx_tune_drive(drive, 255); return -1; } @@ -288,11 +279,10 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif) hwif->ultra_mask = 0x7f; hwif->mwdma_mask = 0x07; - hwif->swdma_mask = 0x07; hwif->ide_dma_check = &aec62xx_config_drive_xfer_rate; hwif->ide_dma_lostirq = &aec62xx_irq_timeout; - hwif->ide_dma_timeout = &aec62xx_irq_timeout; + if (!noautodma) hwif->autodma = 1; hwif->drives[0].autodma = hwif->autodma;