From 50a212ec906f7524620675f0c57357691c26c81f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 16 Oct 2024 01:20:19 +0000
Subject: [PATCH] 修改GPIO导出默认初始值
---
kernel/drivers/usb/host/xhci-mvebu.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 54 insertions(+), 1 deletions(-)
diff --git a/kernel/drivers/usb/host/xhci-mvebu.c b/kernel/drivers/usb/host/xhci-mvebu.c
index 32e1585..eabccf2 100644
--- a/kernel/drivers/usb/host/xhci-mvebu.c
+++ b/kernel/drivers/usb/host/xhci-mvebu.c
@@ -8,11 +8,13 @@
#include <linux/mbus.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "xhci-mvebu.h"
+#include "xhci.h"
#define USB3_MAX_WINDOWS 4
#define USB3_WIN_CTRL(w) (0x0 + ((w) * 8))
@@ -31,7 +33,7 @@
/* Program each DRAM CS in a seperate window */
for (win = 0; win < dram->num_cs; win++) {
- const struct mbus_dram_window *cs = dram->cs + win;
+ const struct mbus_dram_window *cs = &dram->cs[win];
writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
(dram->mbus_dram_target_id << 4) | 1,
@@ -72,3 +74,54 @@
return 0;
}
+
+int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct device *dev = hcd->self.controller;
+ struct phy *phy;
+ int ret;
+
+ /* Old bindings miss the PHY handle */
+ phy = of_phy_get(dev->of_node, "usb3-phy");
+ if (IS_ERR(phy) && PTR_ERR(phy) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ else if (IS_ERR(phy))
+ goto phy_out;
+
+ ret = phy_init(phy);
+ if (ret)
+ goto phy_put;
+
+ ret = phy_set_mode(phy, PHY_MODE_USB_HOST_SS);
+ if (ret)
+ goto phy_exit;
+
+ ret = phy_power_on(phy);
+ if (ret == -EOPNOTSUPP) {
+ /* Skip initializatin of XHCI PHY when it is unsupported by firmware */
+ dev_warn(dev, "PHY unsupported by firmware\n");
+ xhci->quirks |= XHCI_SKIP_PHY_INIT;
+ }
+ if (ret)
+ goto phy_exit;
+
+ phy_power_off(phy);
+phy_exit:
+ phy_exit(phy);
+phy_put:
+ of_phy_put(phy);
+phy_out:
+
+ return 0;
+}
+
+int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ /* Without reset on resume, the HC won't work at all */
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+
+ return 0;
+}
--
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