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/*
* (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __EBI__
#define __EBI__
#include <common.h>
#include <asm/io.h>
#include "vct.h"
#define EXT_DEVICE_CHANNEL_3 (0x30000000)
#define EXT_DEVICE_CHANNEL_2 (0x20000000)
#define EXT_DEVICE_CHANNEL_1 (0x10000000)
#define EXT_CPU_ACCESS_ACTIVE (0x00000001)
#define EXT_DMA_ACCESS_ACTIVE (1 << 14)
#define EXT_CPU_IORDY_SL (0x00000001)
#define EBI_CPU_WRITE (1 << 31)
#define EBI_CPU_ID_SHIFT (28)
#define EBI_CPU_ADDR_MASK ~(~0UL << EBI_CPU_ID_SHIFT)
/* position of various bit slices in timing register EBI_DEV[01]_TIM1_RD1 */
#define ADDR_LATCH_ENABLE 0
#define ADDR_ACTIVATION 4
#define CHIP_SELECT_START 8
#define OUTPUT_ENABLE_START 12
#define WAIT_TIME 28
#define READ_DURATION 20
/* position of various bit slices in timing register EBI_DEV[01]_TIM1_RD2 */
#define OUTPUT_ENABLE_END 0
#define CHIP_SELECT_END 4
#define ADDR_DEACTIVATION 8
#define RECOVER_TIME 12
#define ACK_TIME 20
/* various bits in configuration register EBI_DEV[01]_CONFIG1 */
#define EBI_EXTERNAL_DATA_8 (1 << 8)
#define EBI_EXT_ADDR_SHIFT (1 << 22)
#define EBI_EXTERNAL_DATA_16 EBI_EXT_ADDR_SHIFT
#define EBI_CHIP_SELECT_1 0x2
#define EBI_CHIP_SELECT_2 0x4
#define EBI_BUSY_EN_RD (1 << 12)
#define DIR_ACCESS_WRITE (1 << 20)
#define DIR_ACCESS_MASK (1 << 20)
/* various bits in configuration register EBI_DEV[01]_CONFIG2 */
#define ADDRESS_INCREMENT_ON 0x0
#define ADDRESS_INCREMENT_OFF 0x100
#define QUEUE_LENGTH_1 0x40
#define QUEUE_LENGTH_2 0x80
#define QUEUE_LENGTH_3 0xC0
#define QUEUE_LENGTH_4 0
#define CPU_TRANSFER_SIZE_32 0
#define CPU_TRANSFER_SIZE_16 0x10
#define CPU_TRANSFER_SIZE_8 0x20
#define READ_ENDIANNESS_ABCD 0
#define READ_ENDIANNESS_DCBA 0x4
#define READ_ENDIANNESS_BADC 0x8
#define READ_ENDIANNESS_CDAB 0xC
#define WRITE_ENDIANNESS_ABCD 0
#define WRITE_ENDIANNESS_DCBA 0x1
#define WRITE_ENDIANNESS_BADC 0x2
#define WRITE_ENDIANNESS_CDAB 0x3
/* various bits in configuration register EBI_CTRL_SIG_ACTLV */
#define IORDY_ACTIVELEVEL_HIGH (1 << 14)
#define ALE_ACTIVELEVEL_HIGH (1 << 8)
/* bits in register EBI_SIG_LEVEL */
#define IORDY_LEVEL_MASK 1
static inline void ebi_wait(void)
{
while (reg_read(EBI_STATUS(EBI_BASE)) & EXT_CPU_ACCESS_ACTIVE)
; /* wait */
}
#endif
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