mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
// 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/arch/usb_phy.h>
|
|
#include <asm/io.h>
|
|
#include <dm.h>
|
|
#include <usb.h>
|
|
#include "ohci.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
|
|
|
|
struct ohci_sunxi_priv {
|
|
ohci_t ohci;
|
|
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 */
|
|
int phy_index; /* Index of the usb-phy attached to this hcd */
|
|
};
|
|
|
|
static int ohci_usb_probe(struct udevice *dev)
|
|
{
|
|
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
|
|
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;
|
|
|
|
bus_priv->companion = true;
|
|
|
|
/*
|
|
* This should go away once we've moved to the driver model for
|
|
* clocks resp. phys.
|
|
*/
|
|
priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0;
|
|
#ifdef CONFIG_MACH_SUN8I_H3
|
|
extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0;
|
|
#endif
|
|
priv->usb_gate_mask = CCM_USB_CTRL_OHCI0_CLK;
|
|
priv->phy_index = ((uintptr_t)regs - (SUNXI_USB1_BASE + 0x400)) / BASE_DIST;
|
|
priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
|
|
extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
|
|
priv->usb_gate_mask <<= priv->phy_index;
|
|
priv->phy_index++; /* Non otg phys start at 1 */
|
|
|
|
setbits_le32(&ccm->ahb_gate0,
|
|
priv->ahb_gate_mask | extra_ahb_gate_mask);
|
|
setbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask);
|
|
#ifdef CONFIG_SUNXI_GEN_SUN6I
|
|
setbits_le32(&ccm->ahb_reset0_cfg,
|
|
priv->ahb_gate_mask | extra_ahb_gate_mask);
|
|
#endif
|
|
|
|
sunxi_usb_phy_init(priv->phy_index);
|
|
sunxi_usb_phy_power_on(priv->phy_index);
|
|
|
|
return ohci_register(dev, regs);
|
|
}
|
|
|
|
static int ohci_usb_remove(struct udevice *dev)
|
|
{
|
|
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
|
|
struct ohci_sunxi_priv *priv = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
ret = ohci_deregister(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
sunxi_usb_phy_exit(priv->phy_index);
|
|
|
|
#ifdef CONFIG_SUNXI_GEN_SUN6I
|
|
clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
|
|
#endif
|
|
clrbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask);
|
|
clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id ohci_usb_ids[] = {
|
|
{ .compatible = "allwinner,sun4i-a10-ohci", },
|
|
{ .compatible = "allwinner,sun5i-a13-ohci", },
|
|
{ .compatible = "allwinner,sun6i-a31-ohci", },
|
|
{ .compatible = "allwinner,sun7i-a20-ohci", },
|
|
{ .compatible = "allwinner,sun8i-a23-ohci", },
|
|
{ .compatible = "allwinner,sun8i-a83t-ohci", },
|
|
{ .compatible = "allwinner,sun8i-h3-ohci", },
|
|
{ .compatible = "allwinner,sun9i-a80-ohci", },
|
|
{ .compatible = "allwinner,sun50i-a64-ohci", },
|
|
{ }
|
|
};
|
|
|
|
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,
|
|
};
|