diff options
Diffstat (limited to 'drivers/fpga/lattice-sysconfig.h')
| -rw-r--r-- | drivers/fpga/lattice-sysconfig.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/fpga/lattice-sysconfig.h b/drivers/fpga/lattice-sysconfig.h new file mode 100644 index 0000000000..df47d9a524 --- /dev/null +++ b/drivers/fpga/lattice-sysconfig.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __LATTICE_SYSCONFIG_H +#define __LATTICE_SYSCONFIG_H + +#define SYSCONFIG_ISC_ENABLE {0xC6, 0x00, 0x00, 0x00} +#define SYSCONFIG_ISC_DISABLE {0x26, 0x00, 0x00, 0x00} +#define SYSCONFIG_ISC_ERASE {0x0E, 0x01, 0x00, 0x00} +#define SYSCONFIG_LSC_READ_STATUS {0x3C, 0x00, 0x00, 0x00} +#define SYSCONFIG_LSC_CHECK_BUSY {0xF0, 0x00, 0x00, 0x00} +#define SYSCONFIG_LSC_REFRESH {0x79, 0x00, 0x00, 0x00} +#define SYSCONFIG_LSC_INIT_ADDR {0x46, 0x00, 0x00, 0x00} +#define SYSCONFIG_LSC_BITSTREAM_BURST {0x7a, 0x00, 0x00, 0x00} + +#define SYSCONFIG_STATUS_DONE BIT(8) +#define SYSCONFIG_STATUS_BUSY BIT(12) +#define SYSCONFIG_STATUS_FAIL BIT(13) +#define SYSCONFIG_STATUS_ERR GENMASK(25, 23) + +#define SYSCONFIG_POLL_INTERVAL_US 30 +#define SYSCONFIG_POLL_BUSY_TIMEOUT_US 1000000 +#define SYSCONFIG_POLL_GPIO_TIMEOUT_US 100000 + +struct sysconfig_priv { + struct gpio_desc *program; + struct gpio_desc *init; + struct gpio_desc *done; + struct device *dev; + int (*command_transfer)(struct sysconfig_priv *priv, const void *tx_buf, + size_t tx_len, void *rx_buf, size_t rx_len); + int (*bitstream_burst_write_init)(struct sysconfig_priv *priv); + int (*bitstream_burst_write)(struct sysconfig_priv *priv, + const char *tx_buf, size_t tx_len); + int (*bitstream_burst_write_complete)(struct sysconfig_priv *priv); +}; + +int sysconfig_probe(struct sysconfig_priv *priv); + +#endif /* __LATTICE_SYSCONFIG_H */ |