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Commit c70798f1 authored by Wu Zhangjin's avatar Wu Zhangjin Committed by Ralf Baechle
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MIPS: Loongson: Lemote-2F: USB: Not Emulate Non-Posted Writes 



Without this patch, when copying large amounts of data between the USB
storage devices and the hard disk, the USB device will disconnect
regularly.

Signed-off-by: default avatarHu Hongbing <huhb@lemote.com>
Signed-off-by: default avatarWu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: yanh@lemote.com
Cc: huhb@lemote.com
Cc: zhangfx@lemote.com
Patchwork: http://patchwork.linux-mips.org/patch/822/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 1b39a0ba

arch/mips/pci/fixup-lemote2f.c

+1 −1
Original line number Diff line number Diff line
@@ -131,7 +131,7 @@ static void __init loongson_cs5536_ehci_fixup(struct pci_dev *pdev) 


	/* Serial short detect enable */

	_rdmsr(USB_MSR_REG(USB_CONFIG), &hi, &lo);

	_wrmsr(USB_MSR_REG(USB_CONFIG), (1 << 1) | (1 << 2) | (1 << 3), lo);

	_wrmsr(USB_MSR_REG(USB_CONFIG), (1 << 1) | (1 << 3), lo);



	/* setting the USB2.0 micro frame length */

	pci_write_config_dword(pdev, PCI_EHCI_FLADJ_REG, 0x2000);