mirror of
https://github.com/AsahiLinux/u-boot
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be7890927a
Adjust this code to support a live device tree. This should be implemented as a PHY driver but that is left as an exercise for the maintainer. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@nvidia.com>
103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
/*
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* Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef _TEGRA_XUSB_PADCTL_COMMON_H_
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#define _TEGRA_XUSB_PADCTL_COMMON_H_
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#include <common.h>
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#include <fdtdec.h>
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#include <dm/ofnode.h>
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#include <asm/io.h>
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#include <asm/arch-tegra/xusb-padctl.h>
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#include <linux/ioport.h>
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struct tegra_xusb_padctl_lane {
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const char *name;
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unsigned int offset;
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unsigned int shift;
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unsigned int mask;
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unsigned int iddq;
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const unsigned int *funcs;
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unsigned int num_funcs;
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};
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struct tegra_xusb_phy_ops {
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int (*prepare)(struct tegra_xusb_phy *phy);
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int (*enable)(struct tegra_xusb_phy *phy);
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int (*disable)(struct tegra_xusb_phy *phy);
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int (*unprepare)(struct tegra_xusb_phy *phy);
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};
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struct tegra_xusb_phy {
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unsigned int type;
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const struct tegra_xusb_phy_ops *ops;
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struct tegra_xusb_padctl *padctl;
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};
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struct tegra_xusb_padctl_pin {
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const struct tegra_xusb_padctl_lane *lane;
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unsigned int func;
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int iddq;
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};
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#define MAX_GROUPS 5
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#define MAX_PINS 7
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struct tegra_xusb_padctl_group {
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const char *name;
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const char *pins[MAX_PINS];
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unsigned int num_pins;
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const char *func;
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int iddq;
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};
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struct tegra_xusb_padctl_soc {
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const struct tegra_xusb_padctl_lane *lanes;
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unsigned int num_lanes;
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const char *const *functions;
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unsigned int num_functions;
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struct tegra_xusb_phy *phys;
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unsigned int num_phys;
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};
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struct tegra_xusb_padctl_config {
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const char *name;
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struct tegra_xusb_padctl_group groups[MAX_GROUPS];
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unsigned int num_groups;
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};
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struct tegra_xusb_padctl {
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const struct tegra_xusb_padctl_soc *socdata;
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struct tegra_xusb_padctl_config config;
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struct resource regs;
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unsigned int enable;
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};
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extern struct tegra_xusb_padctl padctl;
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static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
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unsigned long offset)
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{
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return readl(padctl->regs.start + offset);
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}
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static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
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u32 value, unsigned long offset)
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{
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writel(value, padctl->regs.start + offset);
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}
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int tegra_xusb_process_nodes(ofnode nodes[], unsigned int count,
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const struct tegra_xusb_padctl_soc *socdata);
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#endif
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