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git://git.code.sf.net/p/openocd/code
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d8042fbb46
Replace the BSD-3-Clause boilerplate with the SPDX tag. Add the SPDX tag and the copyright to two makefiles that were added by TI with the other files in their respective folder. The SPDX tag on files *.c is incorrect, as it should use the C99 single line comment using '//'. But current checkpatch doesn't allow C99 comments, so keep using standard C comments, by now. Change-Id: I3ad1b2dbdb6054b74dcc26e394c9223ba0427caf Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7158 Tested-by: jenkins
154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
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/******************************************************************************
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*
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* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
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*
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******************************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include "flashloader.h"
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/* Data buffers used by host to communicate with flashloader */
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/* Flashloader parameter structure. */
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__attribute__ ((section(".buffers.g_cfg")))
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volatile struct flash_params g_cfg[2];
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/* Data buffer 1. */
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__attribute__ ((section(".buffers.g_buf1")))
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uint8_t g_buf1[BUFFER_LEN];
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/* Data buffer 2. */
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__attribute__ ((section(".buffers.g_buf2")))
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uint8_t g_buf2[BUFFER_LEN];
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/* Buffer used for program with retain feature */
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__attribute__ ((section(".buffers.g_retain_buf")))
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uint8_t g_retain_buf[BUFFER_LEN];
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uint32_t g_curr_buf; /* Current buffer used. */
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uint32_t g_vims_ctl; /* Saved flash cache state. */
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/******************************************************************************
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*
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* This function stores the current VIMS configuration before
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* - disabling VIMS flash cache
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* - flushing the flash line buffers.
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*
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* Note Not using driverlib calls because it requires using "NO_ROM" define in
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* order to work for both Cha. R1 and R2 using the same code. Manually
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* doing the steps to minimize code footprint.
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*
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******************************************************************************/
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static void disable_flash_cache()
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{
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/* 1. Make sure VIMS is not currently changing mode (VIMS:STAT register) */
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while ((HWREG(0x40034000) & 0x00000008) == 0x8)
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;
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/* Save current VIMS:CTL state */
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g_vims_ctl = HWREG(0x40034004);
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/* 2. Set VIMS mode to OFF and disable flash line buffers */
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uint32_t new_vims_ctl = g_vims_ctl | 0x33;
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HWREG(0x40034004) = new_vims_ctl;
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/* 3. Wait for VIMS to have changed mode (VIMS:STAT register) */
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while ((HWREG(0x40034000) & 0x00000008) == 0x8)
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;
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}
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/******************************************************************************
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*
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* This function restores the VIMS configuration saved off by
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* disable_flash_cache().
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*
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* Note Not using driverlib calls because it requires using "NO_ROM" define in
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* order to work for both Cha. R1 and R2 using the same code. Manually
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* doing the steps to minimize code footprint.
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*
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******************************************************************************/
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static void restore_cache_state()
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{
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HWREG(0x40034004) = g_vims_ctl;
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/* Wait for VIMS to have changed mode (VIMS:STAT register) */
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while ((HWREG(0x40034000) & 0x00000008) == 0x8)
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;
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}
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/******************************************************************************
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*
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* CC13xx/CC26xx flashloader main function.
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*
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******************************************************************************/
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int main(void)
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{
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flashloader_init((struct flash_params *)g_cfg, g_buf1, g_buf2);
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g_curr_buf = 0; /* start with the first buffer */
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uint32_t status;
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while (1) {
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/* Wait for host to signal buffer is ready */
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while (g_cfg[g_curr_buf].full == BUFFER_EMPTY)
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;
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disable_flash_cache();
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/* Perform requested task */
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switch (g_cfg[g_curr_buf].cmd) {
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case CMD_ERASE_ALL:
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status = flashloader_erase_all();
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break;
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case CMD_PROGRAM:
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status =
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flashloader_program(
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(uint8_t *)g_cfg[g_curr_buf].buf_addr,
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g_cfg[g_curr_buf].dest, g_cfg[g_curr_buf].len);
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break;
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case CMD_ERASE_AND_PROGRAM:
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status =
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flashloader_erase_and_program(
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(uint8_t *)g_cfg[g_curr_buf].buf_addr,
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g_cfg[g_curr_buf].dest, g_cfg[g_curr_buf].len);
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break;
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case CMD_ERASE_AND_PROGRAM_WITH_RETAIN:
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status =
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flashloader_program_with_retain(
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(uint8_t *)g_cfg[g_curr_buf].buf_addr,
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g_cfg[g_curr_buf].dest, g_cfg[g_curr_buf].len);
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break;
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case CMD_ERASE_SECTORS:
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status =
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flashloader_erase_sectors(g_cfg[g_curr_buf].dest,
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g_cfg[g_curr_buf].len);
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break;
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default:
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status = STATUS_FAILED_UNKNOWN_COMMAND;
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break;
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}
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restore_cache_state();
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/* Enter infinite loop on error condition */
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if (status != STATUS_OK) {
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g_cfg[g_curr_buf].full = status;
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while (1)
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;
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}
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/* Mark current task complete, and begin looking at next buffer */
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g_cfg[g_curr_buf].full = BUFFER_EMPTY;
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g_curr_buf ^= 1;
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}
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}
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void _exit(int status)
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{
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/* Enter infinite loop on hitting an exit condition */
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(void)status; /* Unused parameter */
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while (1)
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;
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}
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