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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* AMD SPI controller driver common stuff
*
* Copyright (c) 2025, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Krishnamoorthi M <krishnamoorthi.m@amd.com>
*/
#ifndef SPI_AMD_H
#define SPI_AMD_H
/**
* enum amd_spi_versions - SPI controller versions
* @AMD_SPI_V1: AMDI0061 hardware version
* @AMD_SPI_V2: AMDI0062 hardware version
* @AMD_HID2_SPI: AMDI0063 hardware version
*/
enum amd_spi_versions {
AMD_SPI_V1 = 1,
AMD_SPI_V2,
AMD_HID2_SPI,
};
/**
* struct amd_spi - SPI driver instance
* @io_remap_addr: Start address of the SPI controller registers
* @phy_dma_buf: Physical address of DMA buffer
* @dma_virt_addr: Virtual address of DMA buffer
* @version: SPI controller hardware version
* @speed_hz: Device frequency
*/
struct amd_spi {
void __iomem *io_remap_addr;
dma_addr_t phy_dma_buf;
void *dma_virt_addr;
enum amd_spi_versions version;
unsigned int speed_hz;
};
int amd_spi_probe_common(struct device *dev, struct spi_controller *host);
#endif /* SPI_AMD_H */
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