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@@ -15,6 +15,8 @@
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#include <linux/usb/xhci-fsl.h>
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#include <linux/usb/dwc3.h>
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#include "xhci.h"
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+#include <fsl_errata.h>
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+#include <fsl_usb.h>
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/* Declare global data pointer */
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DECLARE_GLOBAL_DATA_PTR;
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@@ -27,6 +29,26 @@ __weak int __board_usb_init(int index, enum usb_init_type init)
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return 0;
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}
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+static int erratum_a008751(void)
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+{
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+#if defined(CONFIG_TARGET_LS2080AQDS) || defined(CONFIG_TARGET_LS2080ARDB)
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+ u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
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+ writel(SCFG_USB3PRM1CR_INIT, scfg + SCFG_USB3PRM1CR / 4);
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+ return 0;
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+#endif
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+ return 1;
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+}
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+
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+static void fsl_apply_xhci_errata(void)
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+{
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+ int ret;
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+ if (has_erratum_a008751()) {
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+ ret = erratum_a008751();
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+ if (ret != 0)
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+ puts("Failed to apply erratum a008751\n");
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+ }
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+}
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+
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static int fsl_xhci_core_init(struct fsl_xhci *fsl_xhci)
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{
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int ret = 0;
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@@ -69,6 +91,8 @@ int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
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return ret;
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}
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+ fsl_apply_xhci_errata();
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+
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ret = fsl_xhci_core_init(ctx);
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if (ret < 0) {
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puts("Failed to initialize xhci\n");
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