kempld_internal.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef EC_KONTRON_KEMPLD_INTERNAL_H
#define EC_KONTRON_KEMPLD_INTERNAL_H
 
#include <device/device.h>
 
/* i/o ports */
#define KEMPLD_IDX              0xa80
#define  KEMPLD_MUTEX_KEY       0x80
#define KEMPLD_DAT              0xa81
 
/* indexed registers */
#define KEMPLD_SPEC                     0x06
#define  KEMPLD_SPEC_GET_MINOR(x)       ((x) & 0x0f)
#define  KEMPLD_SPEC_GET_MAJOR(x)       ((x) >> 4 & 0x0f)
 
#define KEMPLD_CFG                      0x37
#define  KEMPLD_CFG_GPIO_I2C_MUX        (1 << 0)
 
#define KEMPLD_UART_0                   0x30
#define KEMPLD_UART_1                   0x31
#define  KEMPLD_UART_IRQ_SHIFT          0
#define  KEMPLD_UART_IRQ_MASK           (0xf << KEMPLD_UART_IRQ_SHIFT)
#define  KEMPLD_UART_IO_SHIFT           4
#define  KEMPLD_UART_IO_MASK            (0x3 << KEMPLD_UART_IO_SHIFT)
#define  KEMPLD_UART_ENABLE             0x80
 
#define KEMPLD_CLK 33333333 /* 33MHz */
 
#define KEMPLD_GPIO_MASK(pin_num)       (1 << ((pin_num) % 8))
#define KEMPLD_GPIO_DIR(pin_num)        (0x40 + (pin_num) / 8)
#define KEMPLD_GPIO_LVL(pin_num)        (0x42 + (pin_num) / 8)
 
void kempld_i2c_device_init(struct device *const dev);
int kempld_gpio_pads_config(struct device *dev);
 
#endif /* EC_KONTRON_KEMPLD_INTERNAL_H */