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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Sweetberry board configuration */
#include "common.h"
#include "dma.h"
#include "ec_version.h"
#include "gpio.h"
#include "gpio_list.h"
#include "hooks.h"
#include "i2c.h"
#include "registers.h"
#include "stm32-dma.h"
#include "task.h"
#include "update_fw.h"
#include "usb_descriptor.h"
#include "util.h"
#include "usb_dwc_hw.h"
#include "usb_dwc_console.h"
#include "usb_dwc_update.h"
/******************************************************************************
* Define the strings used in our USB descriptors.
*/
const void *const usb_strings[] = {
[USB_STR_DESC] = usb_string_desc,
[USB_STR_VENDOR] = USB_STRING_DESC("Google Inc."),
[USB_STR_PRODUCT] = USB_STRING_DESC("Sweetberry"),
[USB_STR_SERIALNO] = USB_STRING_DESC("1234-a"),
[USB_STR_VERSION] = USB_STRING_DESC(CROS_EC_VERSION32),
[USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Sweetberry EC Shell"),
[USB_STR_UPDATE_NAME] = USB_STRING_DESC("Firmware update"),
};
BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
struct dwc_usb usb_ctl = {
.ep = {
&ep0_ctl,
&ep_console_ctl,
&usb_update_ep_ctl,
},
.speed = USB_SPEED_FS,
.phy_type = USB_PHY_ULPI,
.dma_en = 1,
.irq = STM32_IRQ_OTG_HS,
};
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"i2c1", I2C_PORT_0, 800,
GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"i2c2", I2C_PORT_1, 800,
GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"i2c3", I2C_PORT_2, 800,
GPIO_I2C3_SCL, GPIO_I2C3_SDA},
{"fmpi2c4", FMPI2C_PORT_3, 800,
GPIO_FMPI2C_SCL, GPIO_FMPI2C_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/******************************************************************************
* Support firmware upgrade over USB. We can update whichever section is not
* the current section.
*/
/*
* This array defines possible sections available for the firmware update.
* The section which does not map the current executing code is picked as the
* valid update area. The values are offsets into the flash space.
*/
const struct section_descriptor board_rw_sections[] = {
{CONFIG_RO_MEM_OFF,
CONFIG_RO_MEM_OFF + CONFIG_RO_SIZE},
{CONFIG_RW_MEM_OFF,
CONFIG_RW_MEM_OFF + CONFIG_RW_SIZE},
};
const struct section_descriptor * const rw_sections = board_rw_sections;
const int num_rw_sections = ARRAY_SIZE(board_rw_sections);
#define GPIO_SET_HS(bank, number) \
(STM32_GPIO_OSPEEDR(GPIO_##bank) |= (0x3 << ((number) * 2)))
void board_config_post_gpio_init(void)
{
/* We use MCO2 clock passthrough to provide a clock to USB HS */
gpio_config_module(MODULE_MCO, 1);
/* GPIO PC9 to high speed */
GPIO_SET_HS(C, 9);
if (usb_ctl.phy_type == USB_PHY_ULPI)
gpio_set_level(GPIO_USB_MUX_SEL, 0);
else
gpio_set_level(GPIO_USB_MUX_SEL, 1);
/* Set USB GPIO to high speed */
GPIO_SET_HS(A, 11);
GPIO_SET_HS(A, 12);
GPIO_SET_HS(C, 3);
GPIO_SET_HS(C, 2);
GPIO_SET_HS(C, 0);
GPIO_SET_HS(A, 5);
GPIO_SET_HS(B, 5);
GPIO_SET_HS(B, 13);
GPIO_SET_HS(B, 12);
GPIO_SET_HS(B, 2);
GPIO_SET_HS(B, 10);
GPIO_SET_HS(B, 1);
GPIO_SET_HS(B, 0);
GPIO_SET_HS(A, 3);
/* Set I2C GPIO to HS */
GPIO_SET_HS(B, 6);
GPIO_SET_HS(B, 7);
GPIO_SET_HS(F, 1);
GPIO_SET_HS(F, 0);
GPIO_SET_HS(A, 8);
GPIO_SET_HS(B, 4);
GPIO_SET_HS(C, 6);
GPIO_SET_HS(C, 7);
}
static void board_init(void)
{
uint8_t tmp;
/* i2c 0 has a tendancy to get wedged. TODO(nsanders): why? */
i2c_xfer(0, 0, NULL, 0, &tmp, 1, I2C_XFER_SINGLE);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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