127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Sweetberry board configuration */
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#include "common.h"
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#include "dma.h"
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#include "ec_version.h"
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#include "gpio.h"
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#include "gpio_list.h"
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#include "hooks.h"
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#include "i2c.h"
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#include "registers.h"
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#include "stm32-dma.h"
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#include "task.h"
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#include "update_fw.h"
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#include "usb_descriptor.h"
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#include "usb_dwc_console.h"
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#include "usb_dwc_i2c.h"
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#include "usb_dwc_stream.h"
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#include "usb_dwc_update.h"
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#include "usb_hw.h"
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#include "usb_power.h"
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#include "util.h"
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/******************************************************************************
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* Define the strings used in our USB descriptors.
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*/
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const void *const usb_strings[] = {
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[USB_STR_DESC] = usb_string_desc,
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[USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."),
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[USB_STR_PRODUCT] = USB_STRING_DESC("Sweetberry"),
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[USB_STR_SERIALNO] = USB_STRING_DESC("1234-a"),
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[USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
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[USB_STR_I2C_NAME] = USB_STRING_DESC("I2C"),
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[USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Sweetberry EC Shell"),
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[USB_STR_UPDATE_NAME] = USB_STRING_DESC("Firmware update"),
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};
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BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
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/* USB power interface. */
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USB_POWER_CONFIG(sweetberry_power, USB_IFACE_POWER, USB_EP_POWER);
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struct dwc_usb usb_ctl = {
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.ep = {
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&ep0_ctl,
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&ep_console_ctl,
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&usb_update_ep_ctl,
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&sweetberry_power_ep_ctl,
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&i2c_usb__ep_ctl,
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},
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.speed = USB_SPEED_FS,
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.phy_type = USB_PHY_ULPI,
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.dma_en = 1,
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.irq = STM32_IRQ_OTG_HS,
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};
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/* I2C ports */
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const struct i2c_port_t i2c_ports[] = {
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{"i2c1", I2C_PORT_0, 400,
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GPIO_I2C1_SCL, GPIO_I2C1_SDA},
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{"i2c2", I2C_PORT_1, 400,
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GPIO_I2C2_SCL, GPIO_I2C2_SDA},
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{"i2c3", I2C_PORT_2, 400,
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GPIO_I2C3_SCL, GPIO_I2C3_SDA},
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{"fmpi2c4", FMPI2C_PORT_3, 900,
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GPIO_FMPI2C_SCL, GPIO_FMPI2C_SDA},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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int usb_i2c_board_is_enabled(void) { return 1; }
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#define GPIO_SET_HS(bank, number) \
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(STM32_GPIO_OSPEEDR(GPIO_##bank) |= (0x3 << ((number) * 2)))
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void board_config_post_gpio_init(void)
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{
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/* We use MCO2 clock passthrough to provide a clock to USB HS */
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gpio_config_module(MODULE_MCO, 1);
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/* GPIO PC9 to high speed */
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GPIO_SET_HS(C, 9);
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if (usb_ctl.phy_type == USB_PHY_ULPI)
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gpio_set_level(GPIO_USB_MUX_SEL, 0);
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else
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gpio_set_level(GPIO_USB_MUX_SEL, 1);
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/* Set USB GPIO to high speed */
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GPIO_SET_HS(A, 11);
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GPIO_SET_HS(A, 12);
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GPIO_SET_HS(C, 3);
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GPIO_SET_HS(C, 2);
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GPIO_SET_HS(C, 0);
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GPIO_SET_HS(A, 5);
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GPIO_SET_HS(B, 5);
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GPIO_SET_HS(B, 13);
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GPIO_SET_HS(B, 12);
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GPIO_SET_HS(B, 2);
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GPIO_SET_HS(B, 10);
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GPIO_SET_HS(B, 1);
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GPIO_SET_HS(B, 0);
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GPIO_SET_HS(A, 3);
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/* Set I2C GPIO to HS */
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GPIO_SET_HS(B, 6);
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GPIO_SET_HS(B, 7);
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GPIO_SET_HS(F, 1);
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GPIO_SET_HS(F, 0);
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GPIO_SET_HS(A, 8);
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GPIO_SET_HS(B, 4);
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GPIO_SET_HS(C, 6);
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GPIO_SET_HS(C, 7);
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}
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static void board_init(void)
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{
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uint8_t tmp;
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/* i2c 0 has a tendancy to get wedged. TODO(nsanders): why? */
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i2c_xfer(0, 0, NULL, 0, &tmp, 1);
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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