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ARM: rockchip: rv1108: Add a board_usb_init for USB OTG

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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>
This commit is contained in:
Otavio Salvador 2018-11-30 11:34:15 -02:00 • committed by Philipp Tomsich
parent a8819e9a9e
commit 303cbd2141
2 changed files with 82 additions and 0 deletions
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1
arch/arm/mach-rockchip/Makefile
View file

@ -33,6 +33,7 @@ obj-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board.o
obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board.o
obj-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board.o
obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board.o
obj-$(CONFIG_ROCKCHIP_RV1108) += rv1108-board.o
endif
obj-$(CONFIG_$(SPL_TPL_)RAM) += sdram_common.o

81
arch/arm/mach-rockchip/rv1108-board.c Normal file
View file

@ -0,0 +1,81 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Google, Inc
*/
#include <common.h>
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
#include <usb.h>
#include <usb/dwc2_udc.h>
static struct dwc2_plat_otg_data rv1108_otg_data = {
.rx_fifo_sz = 512,
.np_tx_fifo_sz = 16,
.tx_fifo_sz = 128,
};
int board_usb_init(int index, enum usb_init_type init)
{
const void *blob = gd->fdt_blob;
bool matched = false;
int node, phy_node;
u32 grf_phy_offset;
const char *mode;
/* find the usb_otg node */
node = fdt_node_offset_by_compatible(blob, -1, "rockchip,rk3066-usb");
while (node > 0) {
mode = fdt_getprop(blob, node, "dr_mode", NULL);
if (mode && strcmp(mode, "otg") == 0) {
matched = true;
break;
}
node = fdt_node_offset_by_compatible(blob, node,
"rockchip,rk3066-usb");
}
if (!matched) {
debug("usb_otg device not found\n");
return -ENODEV;
}
rv1108_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
node = fdtdec_lookup_phandle(blob, node, "phys");
if (node <= 0) {
debug("phys node not found\n");
return -ENODEV;
}
phy_node = fdt_parent_offset(blob, node);
if (phy_node <= 0) {
debug("usb phy node not found\n");
return -ENODEV;
}
rv1108_otg_data.phy_of_node = phy_node;
grf_phy_offset = fdtdec_get_addr(blob, node, "reg");
/* find the grf node */
node = fdt_node_offset_by_compatible(blob, -1,
"rockchip,rv1108-grf");
if (node <= 0) {
debug("grf node not found\n");
return -ENODEV;
}
rv1108_otg_data.regs_phy = grf_phy_offset + fdtdec_get_addr(blob, node,
"reg");
return dwc2_udc_probe(&rv1108_otg_data);
}
int board_usb_cleanup(int index, enum usb_init_type init)
{
return 0;
}
#endif