From: Sergei Shtylyov Date: Thu, 24 Jul 2008 20:53:34 +0000 (+0200) Subject: palm_bk3710: add UltraDMA/100 support X-Git-Tag: v2.6.27-rc1~509^2~9 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0f403bc58dcaa118f02ec70c3ecfec1bc26e445;p=linux-2.6 palm_bk3710: add UltraDMA/100 support This controller supports UltraDMA up to mode 5 but it should be clocked with at least twice the data strobe frequency, so enable mode 5 for 100+ MHz IDECLK. While at it, start passing the correct device to clk_get() -- it worked anyway but WTF? :-/ Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 65bb4b8fd5..3e842d60ea 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -82,6 +82,7 @@ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { {100, 120}, /* UDMA Mode 2 */ {100, 90}, /* UDMA Mode 3 */ {100, 60}, /* UDMA Mode 4 */ + {85, 40}, /* UDMA Mode 5 */ }; static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, @@ -334,12 +335,11 @@ static const struct ide_port_ops palm_bk3710_ports_ops = { .cable_detect = palm_bk3710_cable_detect, }; -static const struct ide_port_info __devinitdata palm_bk3710_port_info = { +static struct ide_port_info __devinitdata palm_bk3710_port_info = { .init_dma = palm_bk3710_init_dma, .port_ops = &palm_bk3710_ports_ops, .host_flags = IDE_HFLAG_MMIO, .pio_mask = ATA_PIO4, - .udma_mask = ATA_UDMA4, /* (input clk 99MHz) */ .mwdma_mask = ATA_MWDMA2, }; @@ -352,7 +352,7 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - clk = clk_get(NULL, "IDECLK"); + clk = clk_get(&pdev->dev, "IDECLK"); if (IS_ERR(clk)) return -ENODEV; @@ -392,6 +392,9 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) hw.irq = irq->start; hw.chipset = ide_palm3710; + palm_bk3710_port_info.udma_mask = rate < 100000000 ? ATA_UDMA4 : + ATA_UDMA5; + rc = ide_host_add(&palm_bk3710_port_info, hws, NULL); if (rc) goto out;