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 24 struct 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 37 int sysconfig_probe(struct sysconfig_priv *priv); 38 39 #endif /* __LATTICE_SYSCONFIG_H */ 40