hoho: Initial board configuration.

Create necessary boiler plate files for USB type-C to HDMI dongle.

BRANCH=none
BUG=chrome-os-partner:31192
TEST=manual
1. Compiles & can program via fruitpie.
2. Can access uart (w/ rework for tx/rx).
3. Can drive HDMI capable monitor.

test details ...

Programming:
------------
   # connect fruitpie + fruitpie std-adapter(red) with u-USB (CN3) & type-A
   # (CN1) both to host that will run servod.
   FPIE_PORT=9993
   sudo servod -p 0x5009 --port $FPIE_PORT

   dut-control --port $FPIE_PORT "ec_uart_cmd:gpioset USB_C_5V_EN 1"
   dut-control --port $FPIE_PORT "ec_uart_cmd:usbmux usb"
   util/flash_ec --board=hoho

Configuring samus for DPout on both ports:
------------------------------------------

    sudo servod -b samus

    for port 0 1; do
        dut-control "usbpd_uart_cmd:pd ${PORT} dualrole off"
        dut-control "usbpd_uart_cmd:gpioset USB_C${PORT}_CHARGE_EN_L 1"
        dut-control "usbpd_uart_cmd:typec ${PORT} dp"
        dut-control "usbpd_uart_cmd:gpioset USB_C${PORT}_5V_EN 1"
        dut-control "usbpd_uart_cmd:typec ${PORT}"
    done
Change-Id: I39bbe1e347d1cfd777b68f3fdac6c5c6dd22800d
Signed-off-by: Todd Broch <tbroch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/212523
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/board/hoho/board.c b/board/hoho/board.c
new file mode 100644
index 0000000000..b0e3a7d37b
--- /dev/null
+++ b/board/hoho/board.c
@@ -0,0 +1,40 @@
+/* Copyright (c) 2014 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.
+ */
+/* Twinkie dongle configuration */
+
+#include "adc.h"
+#include "adc_chip.h"
+#include "common.h"
+#include "console.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "i2c.h"
+#include "registers.h"
+#include "task.h"
+#include "util.h"
+
+#include "gpio_list.h"
+
+/* Initialize board. */
+void board_config_pre_init(void)
+{
+	/* enable SYSCFG clock */
+	STM32_RCC_APB2ENR |= 1 << 0;
+	/* Remap USART DMA to match the USART driver */
+	STM32_SYSCFG_CFGR1 |= (1 << 9) | (1 << 10);/* Remap USART1 RX/TX DMA */
+}
+
+/* ADC channels */
+const struct adc_t adc_channels[] = {
+	/* USB PD CC lines sensing. Converted to mV (3300mV/4096). */
+	[ADC_CH_CC1_PD] = {"USB_C_CC1_PD", 3300, 4096, 0, STM32_AIN(1)},
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+/* I2C ports */
+const struct i2c_port_t i2c_ports[] = {
+	{"master", I2C_PORT_MASTER, 400, GPIO_MCDP_I2C_SCL, GPIO_MCDP_I2C_SDA},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);