diff options
Diffstat (limited to 'source/hal/profiles/bare-metal/bsp')
-rw-r--r-- | source/hal/profiles/bare-metal/bsp/include/bsp.h | 26 | ||||
-rw-r--r-- | source/hal/profiles/bare-metal/bsp/include/ethosu_mem_config.h | 53 | ||||
-rw-r--r-- | source/hal/profiles/bare-metal/bsp/retarget.c | 268 |
3 files changed, 347 insertions, 0 deletions
diff --git a/source/hal/profiles/bare-metal/bsp/include/bsp.h b/source/hal/profiles/bare-metal/bsp/include/bsp.h new file mode 100644 index 0000000..e6dd0b5 --- /dev/null +++ b/source/hal/profiles/bare-metal/bsp/include/bsp.h @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef BSP_H +#define BSP_H + +#include "platform_drivers.h" + +#if defined(ARM_NPU) +#include "ethosu_mem_config.h" +#endif /* defined(ARM_NPU) */ + +#endif /* BSP_H */ diff --git a/source/hal/profiles/bare-metal/bsp/include/ethosu_mem_config.h b/source/hal/profiles/bare-metal/bsp/include/ethosu_mem_config.h new file mode 100644 index 0000000..b393a03 --- /dev/null +++ b/source/hal/profiles/bare-metal/bsp/include/ethosu_mem_config.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef ETHOS_U_NPU_MEM_CONFIG_H +#define ETHOS_U_NPU_MEM_CONFIG_H + +#define ETHOS_U_NPU_MEMORY_MODE_SRAM_ONLY 0 +#define ETHOS_U_NPU_MEMORY_MODE_SHARED_SRAM 1 +#define ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM 2 + +#define ETHOS_U_MEM_BYTE_ALIGNMENT 16 + +#ifndef ETHOS_U_NPU_MEMORY_MODE + #define ETHOS_U_NPU_MEMORY_MODE ETHOS_U_MEMORY_MODE_SHARED_SRAM +#endif /* ETHOS_U_NPU_MEMORY_MODE */ + +#if (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM) + #define ETHOS_U_CACHE_BUF_SZ (393216U) /* See vela doc? for reference? */ +#else + #define ETHOS_U_CACHE_BUF_SZ (0U) +#endif /* CACHE_BUF_SZ */ + +/** + * Activation buffer aka tensor arena section name + * We have to place the tensor arena in different region based on the memory config. + **/ +#if (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_SHARED_SRAM) + #define ACTIVATION_BUF_SECTION section(".bss.NoInit.activation_buf_sram") + #define ACTIVATION_BUF_SECTION_NAME ("SRAM") +#elif (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_SRAM_ONLY) + #define ACTIVATION_BUF_SECTION section(".bss.NoInit.activation_buf_sram") + #define ACTIVATION_BUF_SECTION_NAME ("SRAM") +#elif (ETHOS_U_NPU_MEMORY_MODE==ETHOS_U_NPU_MEMORY_MODE_DEDICATED_SRAM) + #define ACTIVATION_BUF_SECTION section("activation_buf_dram") + #define CACHE_BUF_SECTION section(".bss.NoInit.ethos_u_cache") + #define ACTIVATION_BUF_SECTION_NAME ("DDR/DRAM") + #define CACHE_BUF_ATTRIBUTE __attribute__((aligned(ETHOS_U_MEM_BYTE_ALIGNMENT), CACHE_BUF_SECTION)) +#endif + +#endif /* ETHOS_U_NPU_MEM_CONFIG_H */
\ No newline at end of file diff --git a/source/hal/profiles/bare-metal/bsp/retarget.c b/source/hal/profiles/bare-metal/bsp/retarget.c new file mode 100644 index 0000000..dfef62c --- /dev/null +++ b/source/hal/profiles/bare-metal/bsp/retarget.c @@ -0,0 +1,268 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "uart_stdout.h" + +#include <stdio.h> +#include <string.h> +#include <time.h> + +#if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6100100) +/* Arm compiler re-targeting */ + +#include <rt_misc.h> +#include <rt_sys.h> + + +/* Standard IO device handles. */ +#define STDIN 0x8001 +#define STDOUT 0x8002 +#define STDERR 0x8003 + +#define RETARGET(fun) _sys##fun + +#else +/* GNU compiler re-targeting */ + +/* + * This type is used by the _ I/O functions to denote an open + * file. + */ +typedef int FILEHANDLE; + +/* + * Open a file. May return -1 if the file failed to open. + */ +extern FILEHANDLE _open(const char * /*name*/, int /*openmode*/); + +/* Standard IO device handles. */ +#define STDIN 0x00 +#define STDOUT 0x01 +#define STDERR 0x02 + +#define RETARGET(fun) fun + +#endif + +/* Standard IO device name defines. */ +const char __stdin_name[] __attribute__((aligned(4))) = "STDIN"; +const char __stdout_name[] __attribute__((aligned(4))) = "STDOUT"; +const char __stderr_name[] __attribute__((aligned(4))) = "STDERR"; + +void _ttywrch(int ch) { + (void)fputc(ch, stdout); +} + +FILEHANDLE RETARGET(_open)(const char *name, int openmode) +{ + (void)(openmode); + + if (strcmp(name, __stdin_name) == 0) { + return (STDIN); + } + + if (strcmp(name, __stdout_name) == 0) { + return (STDOUT); + } + + if (strcmp(name, __stderr_name) == 0) { + return (STDERR); + } + + return -1; +} + +int RETARGET(_write)(FILEHANDLE fh, const unsigned char *buf, unsigned int len, int mode) +{ + (void)(mode); + + switch (fh) { + case STDOUT: + case STDERR: { + int c; + + while (len-- > 0) { + c = fputc(*buf++, stdout); + if (c == EOF) { + return EOF; + } + } + + return 0; + } + default: + return EOF; + } +} + +int RETARGET(_read)(FILEHANDLE fh, unsigned char *buf, unsigned int len, int mode) +{ + (void)(mode); + + switch (fh) { + case STDIN: { + int c; + + while (len-- > 0) { + c = fgetc(stdin); + if (c == EOF) { + return EOF; + } + + *buf++ = (unsigned char)c; + } + + return 0; + } + default: + return EOF; + } +} + +int RETARGET(_istty)(FILEHANDLE fh) +{ + switch (fh) { + case STDIN: + case STDOUT: + case STDERR: + return 1; + default: + return 0; + } +} + +int RETARGET(_close)(FILEHANDLE fh) +{ + if (RETARGET(_istty(fh))) { + return 0; + } + + return -1; +} + +int RETARGET(_seek)(FILEHANDLE fh, long pos) +{ + (void)(fh); + (void)(pos); + + return -1; +} + +int RETARGET(_ensure)(FILEHANDLE fh) +{ + (void)(fh); + + return -1; +} + +long RETARGET(_flen)(FILEHANDLE fh) +{ + if (RETARGET(_istty)(fh)) { + return 0; + } + + return -1; +} + +int RETARGET(_tmpnam)(char *name, int sig, unsigned int maxlen) +{ + (void)(name); + (void)(sig); + (void)(maxlen); + + return 1; +} + +char *RETARGET(_command_string)(char *cmd, int len) +{ + (void)(len); + + return cmd; +} + +void RETARGET(_exit)(int return_code) +{ + UartEndSimulation(return_code); + while(1); +} + +int system(const char *cmd) +{ + (void)(cmd); + + return 0; +} + +time_t time(time_t *timer) +{ + time_t current; + + current = 0; // To Do !! No RTC implemented + + if (timer != NULL) { + *timer = current; + } + + return current; +} + +void _clock_init(void) {} + +clock_t clock(void) +{ + return (clock_t)-1; +} + +int remove(const char *arg) { + (void)(arg); + + return 0; +} + +int rename(const char *oldn, const char *newn) +{ + (void)(oldn); + (void)(newn); + + return 0; +} + +int fputc(int ch, FILE *f) +{ + (void)(f); + + return UartPutc(ch); +} + +int fgetc(FILE *f) +{ + (void)(f); + + return UartPutc(UartGetc()); +} + +#ifndef ferror + +/* arm-none-eabi-gcc with newlib uses a define for ferror */ +int ferror(FILE *f) +{ + (void)(f); + + return EOF; +} + +#endif /* #ifndef ferror */ |