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: NHu Hongbing <huhb@lemote.com>
Signed-off-by: NWu 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: NRalf Baechle <ralf@linux-mips.org>

arch/mips/pci/fixup-lemote2f.c

@@ -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);