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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/fpga/lattice-sysconfig.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#ifndef	__LATTICE_SYSCONFIG_H

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#define	__LATTICE_SYSCONFIG_H

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#define	SYSCONFIG_ISC_ENABLE		{0xC6, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_ISC_DISABLE		{0x26, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_ISC_ERASE		{0x0E, 0x01, 0x00, 0x00}

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#define	SYSCONFIG_LSC_READ_STATUS	{0x3C, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_LSC_CHECK_BUSY	{0xF0, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_LSC_REFRESH		{0x79, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_LSC_INIT_ADDR		{0x46, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_LSC_BITSTREAM_BURST	{0x7a, 0x00, 0x00, 0x00}

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#define	SYSCONFIG_STATUS_DONE		BIT(8)

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#define	SYSCONFIG_STATUS_BUSY		BIT(12)

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#define	SYSCONFIG_STATUS_FAIL		BIT(13)

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#define	SYSCONFIG_STATUS_ERR		GENMASK(25, 23)

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#define	SYSCONFIG_POLL_INTERVAL_US	30

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#define	SYSCONFIG_POLL_BUSY_TIMEOUT_US	1000000

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#define	SYSCONFIG_POLL_GPIO_TIMEOUT_US	100000

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struct sysconfig_priv {

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	struct gpio_desc *program;

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	struct gpio_desc *init;

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	struct gpio_desc *done;

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	struct device *dev;

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	int (*command_transfer)(struct sysconfig_priv *priv, const void *tx_buf,

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				size_t tx_len, void *rx_buf, size_t rx_len);

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	int (*bitstream_burst_write_init)(struct sysconfig_priv *priv);

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	int (*bitstream_burst_write)(struct sysconfig_priv *priv,

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				     const char *tx_buf, size_t tx_len);

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	int (*bitstream_burst_write_complete)(struct sysconfig_priv *priv);

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};

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int sysconfig_probe(struct sysconfig_priv *priv);

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#endif /* __LATTICE_SYSCONFIG_H */

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