1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef	__LATTICE_SYSCONFIG_H
4#define	__LATTICE_SYSCONFIG_H
5
6#define	SYSCONFIG_ISC_ENABLE		{0xC6, 0x00, 0x00, 0x00}
7#define	SYSCONFIG_ISC_DISABLE		{0x26, 0x00, 0x00, 0x00}
8#define	SYSCONFIG_ISC_ERASE		{0x0E, 0x01, 0x00, 0x00}
9#define	SYSCONFIG_LSC_READ_STATUS	{0x3C, 0x00, 0x00, 0x00}
10#define	SYSCONFIG_LSC_CHECK_BUSY	{0xF0, 0x00, 0x00, 0x00}
11#define	SYSCONFIG_LSC_REFRESH		{0x79, 0x00, 0x00, 0x00}
12#define	SYSCONFIG_LSC_INIT_ADDR		{0x46, 0x00, 0x00, 0x00}
13#define	SYSCONFIG_LSC_BITSTREAM_BURST	{0x7a, 0x00, 0x00, 0x00}
14
15#define	SYSCONFIG_STATUS_DONE		BIT(8)
16#define	SYSCONFIG_STATUS_BUSY		BIT(12)
17#define	SYSCONFIG_STATUS_FAIL		BIT(13)
18#define	SYSCONFIG_STATUS_ERR		GENMASK(25, 23)
19
20#define	SYSCONFIG_POLL_INTERVAL_US	30
21#define	SYSCONFIG_POLL_BUSY_TIMEOUT_US	1000000
22#define	SYSCONFIG_POLL_GPIO_TIMEOUT_US	100000
23
24struct sysconfig_priv {
25	struct gpio_desc *program;
26	struct gpio_desc *init;
27	struct gpio_desc *done;
28	struct device *dev;
29	int (*command_transfer)(struct sysconfig_priv *priv, const void *tx_buf,
30				size_t tx_len, void *rx_buf, size_t rx_len);
31	int (*bitstream_burst_write_init)(struct sysconfig_priv *priv);
32	int (*bitstream_burst_write)(struct sysconfig_priv *priv,
33				     const char *tx_buf, size_t tx_len);
34	int (*bitstream_burst_write_complete)(struct sysconfig_priv *priv);
35};
36
37int sysconfig_probe(struct sysconfig_priv *priv);
38
39#endif /* __LATTICE_SYSCONFIG_H */
40