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authorMasahiro Yamada <yamada.masahiro@socionext.com>2016-09-14 01:06:00 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2016-09-14 22:54:19 +0900
commit47a79f657ef6b12b903cf6322dc78b5b93a50029 (patch)
tree31f4ffe4c1808e01a8be747a23bf0d0b465c828c /drivers/usb
parentb5550e496e97367d4c2b52d7a1a2e658f4a97d46 (diff)
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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/Kconfig7
-rw-r--r--drivers/usb/host/Makefile1
-rw-r--r--drivers/usb/host/xhci-uniphier.c85
3 files changed, 0 insertions, 93 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index e0699d4..42e8a9f 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 620d114..55190bb 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 1b3f3d2..0000000
--- 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);
-}