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/* Copyright (c) 2012 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.
*/
/* Stellaris EKB-LM4F-EAC board-specific configuration */
#include "adc.h"
#include "gpio.h"
#include "i2c.h"
#include "lm4_adc.h"
#include "registers.h"
#include "util.h"
/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
const struct adc_t adc_channels[] = {
/* EC internal temperature is calculated by
* 273 + (295 - 450 * ADC_VALUE / ADC_READ_MAX) / 2
* = -225 * ADC_VALUE / ADC_READ_MAX + 420.5
*/
{"ECTemp", LM4_ADC_SEQ0, -225, ADC_READ_MAX, 420,
LM4_AIN_NONE, 0x0e /* TS0 | IE0 | END0 */, 0, 0},
/* Charger current is mapped from 0~4000mA to 0~1.6V.
* And ADC maps 0~3.3V to ADC_READ_MAX.
*
* Note that on BDS, this is really just the turn pot on the Badger
* board, but that's good enough for debugging the ADC.
*/
{"BDSPot", LM4_ADC_SEQ1, 33 * 4000, ADC_READ_MAX * 16, 0,
LM4_AIN(0), 0x06 /* IE0 | END0 */, LM4_GPIO_E, (1<<3)},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"lightbar", I2C_PORT_LIGHTBAR, 400},
};
BUILD_ASSERT(ARRAY_SIZE(i2c_ports) == I2C_PORTS_USED);
/* GPIO signal list. Must match order from enum gpio_signal. */
const struct gpio_info gpio_list[] = {
{"RECOVERYn", GPIO_D, (1<<1), GPIO_PULL_UP, NULL},
{"DEBUG_LED", GPIO_A, (1<<7), GPIO_OUT_LOW, NULL},
/* Unimplemented signals which we need to emulate for now */
GPIO_SIGNAL_NOT_IMPLEMENTED("WP"),
GPIO_SIGNAL_NOT_IMPLEMENTED("ENTERING_RW"),
};
BUILD_ASSERT(ARRAY_SIZE(gpio_list) == GPIO_COUNT);
/* Pins with alternate functions */
const struct gpio_alt_func gpio_alt_funcs[] = {
{GPIO_A, 0x03, 1, MODULE_UART}, /* UART0 */
{GPIO_G, 0x40, 3, MODULE_I2C}, /* I2C5 SCL */
{GPIO_G, 0x80, 3, GPIO_OPEN_DRAIN}, /* I2C5 SDA */
{GPIO_B, 0x03, 1, MODULE_UART}, /* UART1 */
};
const int gpio_alt_funcs_count = ARRAY_SIZE(gpio_alt_funcs);
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