mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
db41d65a97
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2016 Rockchip Electronics Co., Ltd
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*/
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#include <common.h>
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#include <hang.h>
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#include <asm/io.h>
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#include "../gadget/dwc2_udc_otg_priv.h"
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DECLARE_GLOBAL_DATA_PTR;
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#define BIT_WRITEABLE_SHIFT 16
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struct usb2phy_reg {
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unsigned int offset;
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unsigned int bitend;
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unsigned int bitstart;
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unsigned int disable;
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unsigned int enable;
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};
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/**
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* struct rockchip_usb2_phy_cfg: usb-phy port configuration
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* @port_reset: usb otg per-port reset register
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* @soft_con: software control usb otg register
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* @suspend: phy suspend register
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*/
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struct rockchip_usb2_phy_cfg {
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struct usb2phy_reg port_reset;
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struct usb2phy_reg soft_con;
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struct usb2phy_reg suspend;
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};
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struct rockchip_usb2_phy_dt_id {
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char compatible[128];
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const void *data;
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};
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static const struct rockchip_usb2_phy_cfg rk3288_pdata = {
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.port_reset = {0x00, 12, 12, 0, 1},
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.soft_con = {0x08, 2, 2, 0, 1},
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.suspend = {0x0c, 5, 0, 0x01, 0x2A},
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};
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static struct rockchip_usb2_phy_dt_id rockchip_usb2_phy_dt_ids[] = {
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{ .compatible = "rockchip,rk3288-usb-phy", .data = &rk3288_pdata },
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{}
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};
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static void property_enable(struct dwc2_plat_otg_data *pdata,
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const struct usb2phy_reg *reg, bool en)
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{
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unsigned int val, mask, tmp;
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tmp = en ? reg->enable : reg->disable;
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mask = GENMASK(reg->bitend, reg->bitstart);
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val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT);
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writel(val, pdata->regs_phy + reg->offset);
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}
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void otg_phy_init(struct dwc2_udc *dev)
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{
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struct dwc2_plat_otg_data *pdata = dev->pdata;
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struct rockchip_usb2_phy_cfg *phy_cfg = NULL;
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struct rockchip_usb2_phy_dt_id *of_id;
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int i;
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for (i = 0; i < ARRAY_SIZE(rockchip_usb2_phy_dt_ids); i++) {
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of_id = &rockchip_usb2_phy_dt_ids[i];
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if (ofnode_device_is_compatible(pdata->phy_of_node,
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of_id->compatible)){
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phy_cfg = (struct rockchip_usb2_phy_cfg *)of_id->data;
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break;
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}
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}
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if (!phy_cfg) {
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debug("Can't find device platform data\n");
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hang();
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return;
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}
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pdata->priv = phy_cfg;
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/* disable software control */
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property_enable(pdata, &phy_cfg->soft_con, false);
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/* reset otg port */
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property_enable(pdata, &phy_cfg->port_reset, true);
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mdelay(1);
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property_enable(pdata, &phy_cfg->port_reset, false);
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udelay(1);
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}
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void otg_phy_off(struct dwc2_udc *dev)
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{
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struct dwc2_plat_otg_data *pdata = dev->pdata;
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struct rockchip_usb2_phy_cfg *phy_cfg = pdata->priv;
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/* enable software control */
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property_enable(pdata, &phy_cfg->soft_con, true);
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/* enter suspend */
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property_enable(pdata, &phy_cfg->suspend, true);
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}
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