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usb: dwc2: gadget: Add parameters for GREFCLK register

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Added ref_clk_per and sof_cnt_wkup_alert parameters in
dwc2_core_params struct and set default values.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Grigor Tovmasyan 2018-08-29 21:01:31 +04:00 committed by Felipe Balbi
parent 392af02326
commit f3a61e4e03
2 changed files with 20 additions and 0 deletions
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18
drivers/usb/dwc2/core.h
View File

@ -393,6 +393,20 @@ enum dwc2_ep0_state {
* 0 - No
* 1 - Yes
* @hird_threshold: Value of BESL or HIRD Threshold.
* @ref_clk_per: Indicates in terms of pico seconds the period
* of ref_clk.
* 62500 - 16MHz
* 58823 - 17MHz
* 52083 - 19.2MHz
* 50000 - 20MHz
* 41666 - 24MHz
* 33333 - 30MHz (default)
* 25000 - 40MHz
* @sof_cnt_wkup_alert: Indicates in term of number of SOF's after which
* the controller should generate an interrupt if the
* device had been in L1 state until that period.
* This is used by SW to initiate Remote WakeUp in the
* controller so as to sync to the uF number from the host.
* @activate_stm_fs_transceiver: Activate internal transceiver using GGPIO
* register.
* 0 - Deactivate the transceiver (default)
@ -472,6 +486,10 @@ struct dwc2_core_params {
u32 max_transfer_size;
u32 ahbcfg;
/* GREFCLK parameters */
u32 ref_clk_per;
u16 sof_cnt_wkup_alert;
/* Host parameters */
bool host_dma;
bool dma_desc_enable;

2
drivers/usb/dwc2/params.c
View File

@ -303,6 +303,8 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
p->max_packet_count = hw->max_packet_count;
p->max_transfer_size = hw->max_transfer_size;
p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT;
p->ref_clk_per = 33333;
p->sof_cnt_wkup_alert = 100;
if ((hsotg->dr_mode == USB_DR_MODE_HOST) ||
(hsotg->dr_mode == USB_DR_MODE_OTG)) {