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Commit 1b52d2fa authored by Razmik Karapetyan's avatar Razmik Karapetyan Committed by Felipe Balbi
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usb: dwc2: Set AHB burst size to INCR 



Changed AHB burst size from INCR4 to INCR by default.
With this value driver shows excellent DMA performance.

Acked-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarRazmik Karapetyan <razmik@synopsys.com>
Signed-off-by: default avatarGrigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent d1ac8c80

drivers/usb/dwc2/core.h

+1 −1
Original line number Diff line number Diff line
@@ -408,7 +408,7 @@ enum dwc2_ep0_state { 
 * @ahbcfg:             This field allows the default value of the GAHBCFG

 *                      register to be overridden

 *                       -1         - GAHBCFG value will be set to 0x06

 *                                    (INCR4, default)

 *                                    (INCR, default)

 *                       all others - GAHBCFG value will be overridden with

 *                                    this value

 *                      Not all bits can be controlled like this, the

drivers/usb/dwc2/params.c

+1 −1
Original line number Diff line number Diff line
@@ -280,7 +280,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg) 
	p->hibernation = false;

	p->max_packet_count = hw->max_packet_count;

	p->max_transfer_size = hw->max_transfer_size;

	p->ahbcfg = GAHBCFG_HBSTLEN_INCR4 << GAHBCFG_HBSTLEN_SHIFT;

	p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT;



	if ((hsotg->dr_mode == USB_DR_MODE_HOST) ||

	    (hsotg->dr_mode == USB_DR_MODE_OTG)) {