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usb: dwc2: gadget: Add IOT device IDs, configure core accordingly

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Add new device IDs for IOT gadget. Done changes in probe to
configure core accordingly depending on device ID value.

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Vardan Mikayelyan 2016-11-14 19:16:58 -08:00 committed by Felipe Balbi
parent 79c3b5bb89
commit 1e6b98ebd4
2 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/usb/dwc2/core.h
View File

@ -950,6 +950,8 @@ struct dwc2_hsotg {
#define DWC2_CORE_REV_2_94a 0x4f54294a
#define DWC2_CORE_REV_3_00a 0x4f54300a
#define DWC2_CORE_REV_3_10a 0x4f54310a
#define DWC2_FS_IOT_REV_1_00a 0x5531100a
#define DWC2_HS_IOT_REV_1_00a 0x5532100a
#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
union dwc2_hcd_internal_flags {
@ -1078,6 +1080,22 @@ enum dwc2_halt_status {
DWC2_HC_XFER_URB_DEQUEUE,
};
/* Core version information */
static inline bool dwc2_is_iot(struct dwc2_hsotg *hsotg)
{
return (hsotg->hw_params.snpsid & 0xfff00000) == 0x55300000;
}
static inline bool dwc2_is_fs_iot(struct dwc2_hsotg *hsotg)
{
return (hsotg->hw_params.snpsid & 0xffff0000) == 0x55310000;
}
static inline bool dwc2_is_hs_iot(struct dwc2_hsotg *hsotg)
{
return (hsotg->hw_params.snpsid & 0xffff0000) == 0x55320000;
}
/*
* The following functions support initialization of the core driver component
* and the DWC_otg controller

9
drivers/usb/dwc2/params.c
View File

@ -1276,7 +1276,9 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
*/
hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID);
if ((hw->snpsid & 0xfffff000) != 0x4f542000 &&
(hw->snpsid & 0xfffff000) != 0x4f543000) {
(hw->snpsid & 0xfffff000) != 0x4f543000 &&
(hw->snpsid & 0xffff0000) != 0x55310000 &&
(hw->snpsid & 0xffff0000) != 0x55320000) {
dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n",
hw->snpsid);
return -ENODEV;
@ -1418,6 +1420,11 @@ int dwc2_init_params(struct dwc2_hsotg *hsotg)
else
params = params_default;
if (dwc2_is_fs_iot(hsotg)) {
params.speed = DWC2_SPEED_PARAM_FULL;
params.phy_type = DWC2_PHY_TYPE_PARAM_FS;
}
dwc2_set_parameters(hsotg, &params);
return 0;