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303cbd2141
Like it is done for other Rockchip SoCs, introduce a board_usb_init() function so that USB OTG can be functional on rv1108 too. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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*/
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#include <common.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
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#include <usb.h>
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#include <usb/dwc2_udc.h>
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static struct dwc2_plat_otg_data rv1108_otg_data = {
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.rx_fifo_sz = 512,
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.np_tx_fifo_sz = 16,
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.tx_fifo_sz = 128,
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};
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int board_usb_init(int index, enum usb_init_type init)
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{
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const void *blob = gd->fdt_blob;
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bool matched = false;
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int node, phy_node;
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u32 grf_phy_offset;
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const char *mode;
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/* find the usb_otg node */
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node = fdt_node_offset_by_compatible(blob, -1, "rockchip,rk3066-usb");
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while (node > 0) {
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mode = fdt_getprop(blob, node, "dr_mode", NULL);
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if (mode && strcmp(mode, "otg") == 0) {
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matched = true;
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break;
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}
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node = fdt_node_offset_by_compatible(blob, node,
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"rockchip,rk3066-usb");
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}
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if (!matched) {
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debug("usb_otg device not found\n");
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return -ENODEV;
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}
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rv1108_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
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node = fdtdec_lookup_phandle(blob, node, "phys");
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if (node <= 0) {
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debug("phys node not found\n");
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return -ENODEV;
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}
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phy_node = fdt_parent_offset(blob, node);
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if (phy_node <= 0) {
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debug("usb phy node not found\n");
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return -ENODEV;
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}
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rv1108_otg_data.phy_of_node = phy_node;
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grf_phy_offset = fdtdec_get_addr(blob, node, "reg");
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/* find the grf node */
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node = fdt_node_offset_by_compatible(blob, -1,
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"rockchip,rv1108-grf");
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if (node <= 0) {
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debug("grf node not found\n");
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return -ENODEV;
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}
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rv1108_otg_data.regs_phy = grf_phy_offset + fdtdec_get_addr(blob, node,
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"reg");
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return dwc2_udc_probe(&rv1108_otg_data);
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}
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int board_usb_cleanup(int index, enum usb_init_type init)
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{
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return 0;
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}
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#endif
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