orangepi5p 进展 #43
Draft
orangepi5p 进展 #43
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Contributor
Author
|
在此基础上还做了一些失败的尝试，没有新的进展。 |
Contributor
Author
|
uboot 中 static int xhci_dwc3_probe(struct udevice *dev)
{
struct xhci_hcor *hcor;
struct xhci_hccr *hccr;
struct dwc3 *dwc3_reg;
enum usb_dr_mode dr_mode;
struct xhci_dwc3_plat *plat = dev_get_plat(dev);
int ret;
/* 1. Initialize resets */
ret = xhci_dwc3_reset_init(dev, plat);
if (ret)
return ret;
/* 2. Initialize clocks */
ret = xhci_dwc3_clk_init(dev, plat);
if (ret)
return ret;
/* 3. Map XHCI registers */
hccr = (struct xhci_hccr *)((uintptr_t)dev_remap_addr(dev));
hcor = (struct xhci_hcor *)((uintptr_t)hccr +
HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
/* 4. Setup PHY */
ret = dwc3_setup_phy(dev, &plat->phys);
if (ret && (ret != -ENOTSUPP))
return ret;
/* 5. Get DWC3 registers */
dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
/* 6. Core initialization */
dwc3_core_init(dwc3_reg); // ← Critical: resets and configures DWC3 core
/* 7. Configure USB2 PHY */
reg = readl(&dwc3_reg->g_usb2phycfg[0]);
/* 8. Apply quirks and settings from device tree */
if (dev_read_bool(dev, "snps,dis_enblslpm_quirk"))
reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
if (dev_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk"))
reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS;
if (dev_read_bool(dev, "snps,dis_u2_susphy_quirk"))
reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
writel(reg, &dwc3_reg->g_usb2phycfg[0]);
/* 9. Set USB mode (OTG/Host) based on device tree */
dr_mode = usb_get_dr_mode(dev_ofnode(dev));
if (dr_mode == USB_DR_MODE_OTG &&
dev_read_bool(dev, "usb-role-switch")) {
dr_mode = usb_get_role_switch_default_mode(dev_ofnode(dev));
if (dr_mode == USB_DR_MODE_UNKNOWN)
dr_mode = USB_DR_MODE_OTG;
}
if (dr_mode == USB_DR_MODE_UNKNOWN)
dr_mode = USB_DR_MODE_HOST;
/* 10. Configure DWC3 mode */
dwc3_set_mode(dwc3_reg, dr_mode);
/* 11. Register XHCI controller */
return xhci_register(dev, hccr, hcor);
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
变更概览
测试
usb start后，检测到两个 USB 端口，后续仍然卡在WaitMap处：这个 PR（拉取请求）主要是使用 Claude Opus 4.5 通过 Claude Code 编写的，随后由我进行了人工复核。我对本 PR 中的所有更改负完全责任。我已尽力确保其符合我们的目标，但可能仍有一些细微的疏漏。如果发现任何不妥之处，请指出来，我会尽快修复。