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>master
Masahiro Yamada
8 years ago
parent
b5550e496e
commit
47a79f657e
@ -1,85 +0,0 @@ |
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/*
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* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <linux/err.h> |
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#include <linux/io.h> |
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#include <usb.h> |
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#include <fdtdec.h> |
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#include "xhci.h" |
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static int get_uniphier_xhci_base(int index, struct xhci_hccr **base) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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int node_list[2]; |
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fdt_addr_t addr; |
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int count; |
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count = fdtdec_find_aliases_for_id(gd->fdt_blob, "usb", |
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COMPAT_SOCIONEXT_XHCI, node_list, |
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ARRAY_SIZE(node_list)); |
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if (index >= count) |
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return -ENODEV; |
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addr = fdtdec_get_addr(gd->fdt_blob, node_list[index], "reg"); |
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if (addr == FDT_ADDR_T_NONE) |
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return -ENODEV; |
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*base = (struct xhci_hccr *)addr; |
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return 0; |
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} |
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#define USB3_RST_CTRL 0x00100040 |
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#define IOMMU_RST_N (1 << 5) |
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#define LINK_RST_N (1 << 4) |
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static void uniphier_xhci_reset(void __iomem *base, int on) |
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{ |
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u32 tmp; |
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tmp = readl(base + USB3_RST_CTRL); |
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if (on) |
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tmp &= ~(IOMMU_RST_N | LINK_RST_N); |
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else |
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tmp |= IOMMU_RST_N | LINK_RST_N; |
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writel(tmp, base + USB3_RST_CTRL); |
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} |
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int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor) |
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{ |
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int ret; |
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struct xhci_hccr *cr; |
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struct xhci_hcor *or; |
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ret = get_uniphier_xhci_base(index, &cr); |
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if (ret < 0) |
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return ret; |
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uniphier_xhci_reset(cr, 0); |
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or = (void *)cr + HC_LENGTH(xhci_readl(&cr->cr_capbase)); |
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*hccr = cr; |
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*hcor = or; |
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return 0; |
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} |
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void xhci_hcd_stop(int index) |
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{ |
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int ret; |
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struct xhci_hccr *cr; |
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ret = get_uniphier_xhci_base(index, &cr); |
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if (ret < 0) |
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return; |
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uniphier_xhci_reset(cr, 1); |
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} |
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