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path: root/drivers/usb/host/ohci-sunxi.c
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Diffstat (limited to 'drivers/usb/host/ohci-sunxi.c')
-rw-r--r--drivers/usb/host/ohci-sunxi.c233
1 files changed, 0 insertions, 233 deletions
diff --git a/drivers/usb/host/ohci-sunxi.c b/drivers/usb/host/ohci-sunxi.c
deleted file mode 100644
index bb3c2475df..0000000000
--- a/drivers/usb/host/ohci-sunxi.c
+++ /dev/null
@@ -1,233 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Sunxi ohci glue
- *
- * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
- *
- * Based on code from
- * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
- */
-
-#include <common.h>
-#include <asm/arch/clock.h>
-#include <asm/io.h>
-#include <dm.h>
-#include <usb.h>
-#include "ohci.h"
-#include <generic-phy.h>
-
-#ifdef CONFIG_SUNXI_GEN_SUN4I
-#define BASE_DIST 0x8000
-#define AHB_CLK_DIST 2
-#else
-#define BASE_DIST 0x1000
-#define AHB_CLK_DIST 1
-#endif
-
-#define SUN6I_AHB_RESET0_CFG_OFFSET 0x2c0
-#define SUN9I_AHB_RESET0_CFG_OFFSET 0x5a0
-
-struct ohci_sunxi_cfg {
- bool has_reset;
- u32 extra_ahb_gate_mask;
- u32 extra_usb_gate_mask;
- u32 reset0_cfg_offset;
-};
-
-struct ohci_sunxi_priv {
- ohci_t ohci;
- struct sunxi_ccm_reg *ccm;
- u32 *reset0_cfg;
- int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
- int usb_gate_mask; /* Mask of usb_clk_cfg clk gate bits for this hcd */
- struct phy phy;
- const struct ohci_sunxi_cfg *cfg;
-};
-
-static fdt_addr_t last_ohci_addr = 0;
-
-static int ohci_usb_probe(struct udevice *dev)
-{
- struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev);
- struct ohci_sunxi_priv *priv = dev_get_priv(dev);
- struct ohci_regs *regs = (struct ohci_regs *)devfdt_get_addr(dev);
- int extra_ahb_gate_mask = 0;
- u8 reg_mask = 0;
- int phys, ret;
-
- if ((fdt_addr_t)regs > last_ohci_addr)
- last_ohci_addr = (fdt_addr_t)regs;
-
- priv->cfg = (const struct ohci_sunxi_cfg *)dev_get_driver_data(dev);
- priv->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
- if (IS_ERR(priv->ccm))
- return PTR_ERR(priv->ccm);
-
- priv->reset0_cfg = (void *)priv->ccm +
- priv->cfg->reset0_cfg_offset;
-
- phys = dev_count_phandle_with_args(dev, "phys", "#phy-cells");
- if (phys < 0) {
- phys = 0;
- goto no_phy;
- }
-
- ret = generic_phy_get_by_name(dev, "usb", &priv->phy);
- if (ret) {
- pr_err("failed to get %s usb PHY\n", dev->name);
- return ret;
- }
-
- ret = generic_phy_init(&priv->phy);
- if (ret) {
- pr_err("failed to init %s USB PHY\n", dev->name);
- return ret;
- }
-
- ret = generic_phy_power_on(&priv->phy);
- if (ret) {
- pr_err("failed to power on %s USB PHY\n", dev->name);
- return ret;
- }
-
-no_phy:
- bus_priv->companion = true;
-
- /*
- * This should go away once we've moved to the driver model for
- * clocks resp. phys.
- */
- reg_mask = ((uintptr_t)regs - (SUNXI_USB1_BASE + 0x400)) / BASE_DIST;
- priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0;
- extra_ahb_gate_mask = priv->cfg->extra_ahb_gate_mask;
- priv->usb_gate_mask = CCM_USB_CTRL_OHCI0_CLK;
- priv->ahb_gate_mask <<= reg_mask * AHB_CLK_DIST;
- extra_ahb_gate_mask <<= reg_mask * AHB_CLK_DIST;
- priv->usb_gate_mask <<= reg_mask;
-
- setbits_le32(&priv->ccm->ahb_gate0,
- priv->ahb_gate_mask | extra_ahb_gate_mask);
- setbits_le32(&priv->ccm->usb_clk_cfg,
- priv->usb_gate_mask | priv->cfg->extra_usb_gate_mask);
- if (priv->cfg->has_reset)
- setbits_le32(priv->reset0_cfg,
- priv->ahb_gate_mask | extra_ahb_gate_mask);
-
- return ohci_register(dev, regs);
-}
-
-static int ohci_usb_remove(struct udevice *dev)
-{
- struct ohci_sunxi_priv *priv = dev_get_priv(dev);
- fdt_addr_t base_addr = devfdt_get_addr(dev);
- int ret;
-
- if (generic_phy_valid(&priv->phy)) {
- ret = generic_phy_exit(&priv->phy);
- if (ret) {
- pr_err("failed to exit %s USB PHY\n", dev->name);
- return ret;
- }
- }
-
- ret = ohci_deregister(dev);
- if (ret)
- return ret;
-
- if (priv->cfg->has_reset)
- clrbits_le32(priv->reset0_cfg, priv->ahb_gate_mask);
- /*
- * On the A64 CLK_USB_OHCI0 is the parent of CLK_USB_OHCI1, so
- * we have to wait with bringing down any clock until the last
- * OHCI controller is removed.
- */
- if (!priv->cfg->extra_usb_gate_mask || base_addr == last_ohci_addr) {
- u32 usb_gate_mask = priv->usb_gate_mask;
-
- usb_gate_mask |= priv->cfg->extra_usb_gate_mask;
- clrbits_le32(&priv->ccm->usb_clk_cfg, usb_gate_mask);
- }
-
- clrbits_le32(&priv->ccm->ahb_gate0, priv->ahb_gate_mask);
-
- return 0;
-}
-
-static const struct ohci_sunxi_cfg sun4i_a10_cfg = {
- .has_reset = false,
-};
-
-static const struct ohci_sunxi_cfg sun6i_a31_cfg = {
- .has_reset = true,
- .reset0_cfg_offset = SUN6I_AHB_RESET0_CFG_OFFSET,
-};
-
-static const struct ohci_sunxi_cfg sun8i_h3_cfg = {
- .has_reset = true,
- .extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0,
- .reset0_cfg_offset = SUN6I_AHB_RESET0_CFG_OFFSET,
-};
-
-static const struct ohci_sunxi_cfg sun9i_a80_cfg = {
- .has_reset = true,
- .reset0_cfg_offset = SUN9I_AHB_RESET0_CFG_OFFSET,
-};
-
-static const struct ohci_sunxi_cfg sun50i_a64_cfg = {
- .has_reset = true,
- .extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0,
- .extra_usb_gate_mask = CCM_USB_CTRL_OHCI0_CLK,
- .reset0_cfg_offset = SUN6I_AHB_RESET0_CFG_OFFSET,
-};
-
-static const struct udevice_id ohci_usb_ids[] = {
- {
- .compatible = "allwinner,sun4i-a10-ohci",
- .data = (ulong)&sun4i_a10_cfg,
- },
- {
- .compatible = "allwinner,sun5i-a13-ohci",
- .data = (ulong)&sun4i_a10_cfg,
- },
- {
- .compatible = "allwinner,sun6i-a31-ohci",
- .data = (ulong)&sun6i_a31_cfg,
- },
- {
- .compatible = "allwinner,sun7i-a20-ohci",
- .data = (ulong)&sun4i_a10_cfg,
- },
- {
- .compatible = "allwinner,sun8i-a23-ohci",
- .data = (ulong)&sun6i_a31_cfg,
- },
- {
- .compatible = "allwinner,sun8i-a83t-ohci",
- .data = (ulong)&sun6i_a31_cfg,
- },
- {
- .compatible = "allwinner,sun8i-h3-ohci",
- .data = (ulong)&sun8i_h3_cfg,
- },
- {
- .compatible = "allwinner,sun9i-a80-ohci",
- .data = (ulong)&sun9i_a80_cfg,
- },
- {
- .compatible = "allwinner,sun50i-a64-ohci",
- .data = (ulong)&sun50i_a64_cfg,
- },
- { /* sentinel */ }
-};
-
-U_BOOT_DRIVER(usb_ohci) = {
- .name = "ohci_sunxi",
- .id = UCLASS_USB,
- .of_match = ohci_usb_ids,
- .probe = ohci_usb_probe,
- .remove = ohci_usb_remove,
- .ops = &ohci_usb_ops,
- .platdata_auto_alloc_size = sizeof(struct usb_platdata),
- .priv_auto_alloc_size = sizeof(struct ohci_sunxi_priv),
- .flags = DM_FLAG_ALLOC_PRIV_DMA,
-};
generated by cgit (git 2.34.1) at 2024-12-26 20:07:01 +0000