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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "common.h"
#include "debug_printf.h"
#include "printf.h"
#include "registers.h"
#include "setup.h"
#include "system.h"
#include "trng.h"
#include "uart.h"
/*
* This file is a proof of concept stub which will be extended and split into
* appropriate pieces sortly, when full blown support for cr50 bootrom is
* introduced.
*/
uint32_t sleep_mask;
timestamp_t get_time(void)
{
timestamp_t ret;
ret.val = 0;
return ret;
}
static int panic_txchar(void *context, int c)
{
if (c == '\n')
panic_txchar(context, '\r');
/* Wait for space in transmit FIFO */
while (!uart_tx_ready())
;
/* Write the character directly to the transmit FIFO */
uart_write_char(c);
return 0;
}
void panic_puts(const char *outstr)
{
/* Put all characters in the output buffer */
while (*outstr)
panic_txchar(NULL, *outstr++);
}
void panic_printf(const char *format, ...)
{
va_list args;
va_start(args, format);
vfnprintf(panic_txchar, NULL, format, args);
va_end(args);
}
int main(void)
{
init_trng();
uart_init();
debug_printf("\n\n%s bootloader, %8u_%u@%u\n",
STRINGIFY(BOARD), GREG32(SWDP, BUILD_DATE),
GREG32(SWDP, BUILD_TIME), GREG32(SWDP, P4_LAST_SYNC));
unlockFlashForRW();
/* Trying RW A only for now */
tryLaunch(CONFIG_PROGRAM_MEMORY_BASE + CONFIG_RW_MEM_OFF,
CONFIG_FLASH_SIZE/2 - CONFIG_RW_MEM_OFF);
debug_printf("No valid image found, not sure what to do...\n");
halt();
return 1;
}
void panic_reboot(void)
{
panic_puts("\n\nRebooting...\n");
system_reset(0);
}
void interrupt_disable(void)
{
asm("cpsid i");
}
static int printchar(void *context, int c)
{
if (c == '\n')
uart_write_char('\r');
uart_write_char(c);
return 0;
}
void debug_printf(const char *format, ...)
{
va_list args;
va_start(args, format);
vfnprintf(printchar, NULL, format, args);
va_end(args);
}
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