diff options
Diffstat (limited to 'stm-fmc.h')
| -rw-r--r-- | stm-fmc.h | 33 |
1 files changed, 20 insertions, 13 deletions
@@ -4,6 +4,8 @@ * Functions to set up and use the FMC bus. * * Copyright (c) 2015, NORDUnet A/S All rights reserved. + * Copyright: 2020, The Commons Conservancy Cryptech Project + * SPDX-License-Identifier: BSD-3-Clause * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are @@ -15,9 +17,9 @@ * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - * - Neither the name of the NORDUnet nor the names of its contributors may - * be used to endorse or promote products derived from this software - * without specific prior written permission. + * - Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED @@ -39,12 +41,6 @@ #define FMC_FPGA_BASE_ADDR 0x60000000 #define FMC_FPGA_ADDR_MASK 0x03FFFFFC // there are 26 physical lines, but "only" 24 usable for now -#define FMC_FPGA_NWAIT_MAX_POLL_TICKS 10 - -#define FMC_GPIO_PORT_NWAIT GPIOD -#define FMC_GPIO_PIN_NWAIT GPIO_PIN_6 - -#define FMC_NWAIT_IDLE GPIO_PIN_SET #define fmc_af_gpio(port, pins) \ GPIO_InitStruct.Pin = pins; \ @@ -56,10 +52,21 @@ HAL_GPIO_Init(port, &GPIO_InitStruct) -extern HAL_StatusTypeDef fmc_init(void); -extern void fmc_init_gpio(void); +extern void fmc_init(void); + +static inline void *fmc_fpga_addr(off_t addr) +{ + return (void *)(FMC_FPGA_BASE_ADDR + (addr & FMC_FPGA_ADDR_MASK)); +} + +static inline void fmc_write_32(uint32_t addr, uint32_t data) +{ + *(uint32_t *)fmc_fpga_addr(addr) = data; +} -extern int fmc_write_32(uint32_t addr, uint32_t *data); -extern int fmc_read_32(uint32_t addr, uint32_t *data); +static inline void fmc_read_32(uint32_t addr, uint32_t *data) +{ + *data = *(uint32_t *)fmc_fpga_addr(addr); +} #endif /* __STM_FMC_H */ |