diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-09-14 01:06:00 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-09-14 22:54:19 +0900 |
| commit | 47a79f657ef6b12b903cf6322dc78b5b93a50029 (patch) | |
| tree | 31f4ffe4c1808e01a8be747a23bf0d0b465c828c /drivers/usb | |
| parent | b5550e496e97367d4c2b52d7a1a2e658f4a97d46 (diff) | |
usb: uniphier: remove UniPhier xHCI driver and select DM_USB
This driver has not been converted to Driver Model, and it is an
obstacle to migrate other block device drivers. Remove it for now.
The UniPhier SoCs already use a DM-based EHCI driver, so now
ARCH_UNIPHIER can select DM_USB.
These two changes must be done atomically because removing the
legacy driver causes a build error.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-uniphier.c | 85 |
3 files changed, 0 insertions, 93 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index e0699d41ac..42e8a9f934 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -15,13 +15,6 @@ config USB_XHCI_HCD if USB_XHCI_HCD -config USB_XHCI_UNIPHIER - bool "Support for UniPhier on-chip xHCI USB controller" - depends on ARCH_UNIPHIER - default y - ---help--- - Enables support for the on-chip xHCI controller on UniPhier SoCs. - config USB_XHCI_DWC3 bool "DesignWare USB3 DRD Core Support" help diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 620d114795..55190bb667 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -62,7 +62,6 @@ obj-$(CONFIG_USB_XHCI_EXYNOS) += xhci-exynos5.o obj-$(CONFIG_USB_XHCI_FSL) += xhci-fsl.o obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o -obj-$(CONFIG_USB_XHCI_UNIPHIER) += xhci-uniphier.o # designware obj-$(CONFIG_USB_DWC2) += dwc2.o diff --git a/drivers/usb/host/xhci-uniphier.c b/drivers/usb/host/xhci-uniphier.c deleted file mode 100644 index 1b3f3d22de..0000000000 --- a/drivers/usb/host/xhci-uniphier.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <linux/err.h> -#include <linux/io.h> -#include <usb.h> -#include <fdtdec.h> -#include "xhci.h" - -static int get_uniphier_xhci_base(int index, struct xhci_hccr **base) -{ - DECLARE_GLOBAL_DATA_PTR; - int node_list[2]; - fdt_addr_t addr; - int count; - - count = fdtdec_find_aliases_for_id(gd->fdt_blob, "usb", - COMPAT_SOCIONEXT_XHCI, node_list, - ARRAY_SIZE(node_list)); - - if (index >= count) - return -ENODEV; - - addr = fdtdec_get_addr(gd->fdt_blob, node_list[index], "reg"); - if (addr == FDT_ADDR_T_NONE) - return -ENODEV; - - *base = (struct xhci_hccr *)addr; - - return 0; -} - -#define USB3_RST_CTRL 0x00100040 -#define IOMMU_RST_N (1 << 5) -#define LINK_RST_N (1 << 4) - -static void uniphier_xhci_reset(void __iomem *base, int on) -{ - u32 tmp; - - tmp = readl(base + USB3_RST_CTRL); - - if (on) - tmp &= ~(IOMMU_RST_N | LINK_RST_N); - else - tmp |= IOMMU_RST_N | LINK_RST_N; - - writel(tmp, base + USB3_RST_CTRL); -} - -int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) -{ - int ret; - struct xhci_hccr *cr; - struct xhci_hcor *or; - - ret = get_uniphier_xhci_base(index, &cr); - if (ret < 0) - return ret; - - uniphier_xhci_reset(cr, 0); - - or = (void *)cr + HC_LENGTH(xhci_readl(&cr->cr_capbase)); - - *hccr = cr; - *hcor = or; - - return 0; -} - -void xhci_hcd_stop(int index) -{ - int ret; - struct xhci_hccr *cr; - - ret = get_uniphier_xhci_base(index, &cr); - if (ret < 0) - return; - - uniphier_xhci_reset(cr, 1); -} |