On 29/02/12 13:01, Thomas Abraham wrote:
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.
it makes sense.
Thanks, Thomas. [...]
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