#include <config.h>
#include <clk.h>
#include <dm.h>
+#include <g_dnl.h>
#include <generic-phy.h>
#include <led.h>
#include <misc.h>
#include <phy.h>
#include <reset.h>
#include <syscon.h>
-#include <usb.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/stm32.h>
#include <power/regulator.h>
-#include <usb/dwc2_udc.h>
/* SYSCFG registers */
#define SYSCFG_BOOTR 0x00
*/
DECLARE_GLOBAL_DATA_PTR;
-#define STM32MP_GUSBCFG 0x40002407
-
-#define STM32MP_GGPIO 0x38
-#define STM32MP_GGPIO_VBUS_SENSING BIT(21)
-
#define USB_WARNING_LOW_THRESHOLD_UV 660000
#define USB_START_LOW_THRESHOLD_UV 1230000
#define USB_START_HIGH_THRESHOLD_UV 2100000
#endif
}
-static struct dwc2_plat_otg_data stm32mp_otg_data = {
- .usb_gusbcfg = STM32MP_GUSBCFG,
-};
+#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
-static struct reset_ctl usbotg_reset;
-
-int board_usb_init(int index, enum usb_init_type init)
+int g_dnl_board_usb_cable_connected(void)
{
- struct fdtdec_phandle_args args;
- struct udevice *dev;
- const void *blob = gd->fdt_blob;
- struct clk clk;
- struct phy phy;
- int node;
- int phy_provider;
+ struct udevice *dwc2_udc_otg;
int ret;
- /* find the usb otg node */
- node = fdt_node_offset_by_compatible(blob, -1, "snps,dwc2");
- if (node < 0) {
- debug("Not found usb_otg device\n");
- return -ENODEV;
- }
-
- if (!fdtdec_get_is_enabled(blob, node)) {
- debug("stm32 usbotg is disabled in the device tree\n");
- return -ENODEV;
- }
-
- /* Enable clock */
- ret = fdtdec_parse_phandle_with_args(blob, node, "clocks",
- "#clock-cells", 0, 0, &args);
- if (ret) {
- debug("usbotg has no clocks defined in the device tree\n");
- return ret;
- }
-
- ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &dev);
- if (ret)
- return ret;
-
- if (args.args_count != 1) {
- debug("Can't find clock ID in the device tree\n");
- return -ENODATA;
- }
-
- clk.dev = dev;
- clk.id = args.args[0];
-
- ret = clk_enable(&clk);
- if (ret) {
- debug("Failed to enable usbotg clock\n");
- return ret;
- }
-
- /* Reset */
- ret = fdtdec_parse_phandle_with_args(blob, node, "resets",
- "#reset-cells", 0, 0, &args);
- if (ret) {
- debug("usbotg has no resets defined in the device tree\n");
- goto clk_err;
- }
-
- ret = uclass_get_device_by_of_offset(UCLASS_RESET, args.node, &dev);
- if (ret || args.args_count != 1)
- goto clk_err;
-
- usbotg_reset.dev = dev;
- usbotg_reset.id = args.args[0];
-
- reset_assert(&usbotg_reset);
- udelay(2);
- reset_deassert(&usbotg_reset);
-
- /* Get USB PHY */
- ret = fdtdec_parse_phandle_with_args(blob, node, "phys",
- "#phy-cells", 0, 0, &args);
- if (!ret) {
- phy_provider = fdt_parent_offset(blob, args.node);
- ret = uclass_get_device_by_of_offset(UCLASS_PHY,
- phy_provider, &dev);
- if (ret)
- goto clk_err;
-
- phy.dev = dev;
- phy.id = fdtdec_get_uint(blob, args.node, "reg", -1);
-
- ret = generic_phy_power_on(&phy);
- if (ret) {
- debug("unable to power on the phy\n");
- goto clk_err;
- }
-
- ret = generic_phy_init(&phy);
- if (ret) {
- debug("failed to init usb phy\n");
- goto phy_power_err;
- }
- }
-
- /* Parse and store data needed for gadget */
- stm32mp_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
- if (stm32mp_otg_data.regs_otg == FDT_ADDR_T_NONE) {
- debug("usbotg: can't get base address\n");
- ret = -ENODATA;
- goto phy_init_err;
- }
-
- stm32mp_otg_data.rx_fifo_sz = fdtdec_get_int(blob, node,
- "g-rx-fifo-size", 0);
- stm32mp_otg_data.np_tx_fifo_sz = fdtdec_get_int(blob, node,
- "g-np-tx-fifo-size", 0);
- stm32mp_otg_data.tx_fifo_sz = fdtdec_get_int(blob, node,
- "g-tx-fifo-size", 0);
- /* Enable voltage level detector */
- if (!(fdtdec_parse_phandle_with_args(blob, node, "usb33d-supply",
- NULL, 0, 0, &args))) {
- if (!uclass_get_device_by_of_offset(UCLASS_REGULATOR,
- args.node, &dev)) {
- ret = regulator_set_enable(dev, true);
- if (ret) {
- debug("Failed to enable usb33d\n");
- goto phy_init_err;
- }
- }
- }
- /* Enable vbus sensing */
- setbits_le32(stm32mp_otg_data.regs_otg + STM32MP_GGPIO,
- STM32MP_GGPIO_VBUS_SENSING);
-
- return dwc2_udc_probe(&stm32mp_otg_data);
-
-phy_init_err:
- generic_phy_exit(&phy);
-
-phy_power_err:
- generic_phy_power_off(&phy);
-
-clk_err:
- clk_disable(&clk);
+ ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
+ DM_GET_DRIVER(dwc2_udc_otg),
+ &dwc2_udc_otg);
+ if (!ret)
+ debug("dwc2_udc_otg init failed\n");
- return ret;
+ return dwc2_udc_B_session_valid(dwc2_udc_otg);
}
+#endif /* CONFIG_USB_GADGET */
static int get_led(struct udevice **dev, char *led_string)
{
return 0;
}
-int board_usb_cleanup(int index, enum usb_init_type init)
-{
- /* Reset usbotg */
- reset_assert(&usbotg_reset);
- udelay(2);
- reset_deassert(&usbotg_reset);
-
- return 0;
-}
-
static void sysconf_init(void)
{
#ifndef CONFIG_STM32MP1_TRUSTED
projects / oweals / u-boot.git / commitdiff