diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/drivers/usb/host/xhci-omap.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/drivers/usb/host/xhci-omap.c')
| -rw-r--r-- | roms/u-boot/drivers/usb/host/xhci-omap.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/usb/host/xhci-omap.c b/roms/u-boot/drivers/usb/host/xhci-omap.c new file mode 100644 index 000000000..501129d76 --- /dev/null +++ b/roms/u-boot/drivers/usb/host/xhci-omap.c @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * OMAP USB HOST xHCI Controller + * + * (C) Copyright 2013 + * Texas Instruments, <www.ti.com> + * + * Author: Dan Murphy <dmurphy@ti.com> + */ + +#include <common.h> +#include <log.h> +#include <usb.h> +#include <linux/errno.h> +#include <asm/omap_common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/sys_proto.h> + +#include <linux/compat.h> +#include <linux/usb/dwc3.h> +#include <linux/usb/xhci-omap.h> + +#include <usb/xhci.h> + +/* Declare global data pointer */ +static struct omap_xhci omap; + +static int omap_xhci_core_init(struct omap_xhci *omap) +{ + int ret = 0; + + usb_phy_power(1); + omap_enable_phy(omap); + + ret = dwc3_core_init(omap->dwc3_reg); + if (ret) { + debug("%s:failed to initialize core\n", __func__); + return ret; + } + + /* We are hard-coding DWC3 core to Host Mode */ + dwc3_set_mode(omap->dwc3_reg, DWC3_GCTL_PRTCAP_HOST); + + return ret; +} + +static void omap_xhci_core_exit(struct omap_xhci *omap) +{ + usb_phy_power(0); +} + +int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) +{ + struct omap_xhci *ctx = &omap; + int ret = 0; + + ctx->hcd = (struct xhci_hccr *)OMAP_XHCI_BASE; + ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET); + ctx->usb3_phy = (struct omap_usb3_phy *)OMAP_OCP1_SCP_BASE; + ctx->otg_wrapper = (struct omap_dwc_wrapper *)OMAP_OTG_WRAPPER_BASE; + + ret = board_usb_init(index, USB_INIT_HOST); + if (ret != 0) { + puts("Failed to initialize board for USB\n"); + return ret; + } + + ret = omap_xhci_core_init(ctx); + if (ret < 0) { + puts("Failed to initialize xhci\n"); + return ret; + } + + *hccr = (struct xhci_hccr *)(OMAP_XHCI_BASE); + *hcor = (struct xhci_hcor *)((uint32_t) *hccr + + HC_LENGTH(xhci_readl(&(*hccr)->cr_capbase))); + + debug("omap-xhci: init hccr %x and hcor %x hc_length %d\n", + (uint32_t)*hccr, (uint32_t)*hcor, + (uint32_t)HC_LENGTH(xhci_readl(&(*hccr)->cr_capbase))); + + return ret; +} + +void xhci_hcd_stop(int index) +{ + struct omap_xhci *ctx = &omap; + + omap_xhci_core_exit(ctx); + board_usb_cleanup(index, USB_INIT_HOST); +} |