From 303cbd214133ba626ba92cfafd1158903d9fe688 Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Fri, 30 Nov 2018 11:34:15 -0200 Subject: [PATCH] ARM: rockchip: rv1108: Add a board_usb_init for USB OTG 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 Reviewed-by: Philipp Tomsich --- arch/arm/mach-rockchip/Makefile | 1 + arch/arm/mach-rockchip/rv1108-board.c | 81 +++++++++++++++++++++++++++ 2 files changed, 82 insertions(+) create mode 100644 arch/arm/mach-rockchip/rv1108-board.c diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile index 05706c472a..368302e1da 100644 --- a/arch/arm/mach-rockchip/Makefile +++ b/arch/arm/mach-rockchip/Makefile @@ -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 diff --git a/arch/arm/mach-rockchip/rv1108-board.c b/arch/arm/mach-rockchip/rv1108-board.c new file mode 100644 index 0000000000..3412f2c063 --- /dev/null +++ b/arch/arm/mach-rockchip/rv1108-board.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2015 Google, Inc + */ + +#include + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG) +#include +#include + +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 -- 2.25.1