Hi, > -----Original Message----- > From: Thomas Abraham [mailto:thomas.abraham@xxxxxxxxxx] > Sent: Wednesday, February 29, 2012 10:02 PM > To: Sangwook Lee > Cc: linux-samsung-soc@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > ben-linux@xxxxxxxxx; gregkh@xxxxxxx; kgene.kim@xxxxxxxxxxx; stern@xxxxxxxxxxxxxxxxxxx; > jg1.han@xxxxxxxxxxx; jy0922.shim@xxxxxxxxxxx; patches@xxxxxxxxxx; linaro-dev@xxxxxxxxxxxxxxxx; > linux@xxxxxxxxxxxxxxxx > Subject: Re: [PATCH 1/2] ARM: EXYNOS: Add EHCI AHB burst function > > Hi Sangwook, > > On 29 February 2012 18:11, Sangwook Lee <sangwook.lee@xxxxxxxxxx> wrote: > > Enable burst transfer from AHB for EHCI. > > This fixes data transfer of USB Ethernet with EHCI. > > Without this patch, scp hardly works. > > > > Signed-off-by: Sangwook Lee <sangwook.lee@xxxxxxxxxx> > > --- > > arch/arm/mach-exynos/setup-usb-phy.c | 6 ++++++ > > arch/arm/plat-samsung/devs.c | 2 ++ > > arch/arm/plat-samsung/include/plat/ehci.h | 19 +++++++++++++++++++ > > 3 files changed, 27 insertions(+), 0 deletions(-) > > > > diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c > > index 41743d2..5a20460 100644 > > --- a/arch/arm/mach-exynos/setup-usb-phy.c > > +++ b/arch/arm/mach-exynos/setup-usb-phy.c > > @@ -18,6 +18,7 @@ > > #include <mach/regs-usb-phy.h> > > #include <plat/cpu.h> > > #include <plat/usb-phy.h> > > +#include <plat/ehci.h> > > > > static atomic_t host_usage; > > > > @@ -149,3 +150,8 @@ int s5p_usb_phy_exit(struct platform_device *pdev, int type) > > > > return -EINVAL; > > } > > + > > +void s5p_ehci_burst_enable(struct platform_device *pdev, void __iomem *base) > > +{ > > + writel(EHCI_INSNREG00_ENABLE_BURST, base + EHCI_INSNREG00); > > +} > > This functionality can be added in ehci-s5p itself and avoid adding a > new platform callback in platform data. If this is specific to exynos, > driver data could be added in ehci-s5p to indicate platforms that need > this to be enabled. I agree with Thomas's opinion. Sangwook, please don't call s5p_ehci_burst_enable using platform callback. It can be added to ehci-s5p itself. > > Thanks, > Thomas. > > [...] -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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