1 files changed, 89 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/arm/cpu/pxa/usb.c b/qemu/roms/u-boot/arch/arm/cpu/pxa/usb.c
new file mode 100644
index 000000000..c31c2d733
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/pxa/usb.c
@@ -0,0 +1,89 @@
+/*
+ * (C) Copyright 2006
+ * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
+# if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_CPU_PXA27X)
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/io.h>
+#include <usb.h>
+
+int usb_cpu_init(void)
+{
+#if defined(CONFIG_CPU_MONAHANS)
+	/* Enable USB host clock. */
+	writel(readl(CKENA) | CKENA_2_USBHOST | CKENA_20_UDC, CKENA);
+	udelay(100);
+#endif
+#if defined(CONFIG_CPU_PXA27X)
+	/* Enable USB host clock. */
+	writel(readl(CKEN) | CKEN10_USBHOST, CKEN);
+#endif
+
+#if defined(CONFIG_CPU_MONAHANS)
+	/* Configure Port 2 for Host (USB Client Registers) */
+	writel(0x3000c, UP2OCR);
+#endif
+
+	writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
+	mdelay(11);
+	writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
+
+	writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR);
+	while (readl(UHCHR) & UHCHR_FSBIR)
+		udelay(1);
+
+#if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X)
+	writel(readl(UHCHR) & ~UHCHR_SSEP0, UHCHR);
+#endif
+#if defined(CONFIG_CPU_PXA27X)
+	writel(readl(UHCHR) & ~UHCHR_SSEP2, UHCHR);
+#endif
+	writel(readl(UHCHR) & ~(UHCHR_SSEP1 | UHCHR_SSE), UHCHR);
+
+	return 0;
+}
+
+int usb_cpu_stop(void)
+{
+	writel(readl(UHCHR) | UHCHR_FHR, UHCHR);
+	udelay(11);
+	writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR);
+
+	writel(readl(UHCCOMS) | UHCCOMS_HCR, UHCCOMS);
+	udelay(10);
+
+#if defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_PXA27X)
+	writel(readl(UHCHR) | UHCHR_SSEP0, UHCHR);
+#endif
+#if defined(CONFIG_CPU_PXA27X)
+	writel(readl(UHCHR) | UHCHR_SSEP2, UHCHR);
+#endif
+	writel(readl(UHCHR) | UHCHR_SSEP1 | UHCHR_SSE, UHCHR);
+
+#if defined(CONFIG_CPU_MONAHANS)
+	/* Disable USB host clock. */
+	writel(readl(CKENA) & ~(CKENA_2_USBHOST | CKENA_20_UDC), CKENA);
+	udelay(100);
+#endif
+#if defined(CONFIG_CPU_PXA27X)
+	/* Disable USB host clock. */
+	writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN);
+#endif
+
+	return 0;
+}
+
+int usb_cpu_init_fail(void)
+{
+	return usb_cpu_stop();
+}
+
+# endif /* defined(CONFIG_CPU_MONAHANS) || defined(CONFIG_CPU_PXA27X) */
+#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */