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[sw] BootROM default is SPI bootstrap #625

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[sw] BootROM default is SPI bootstrap #625

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6 changes: 3 additions & 3 deletions sw/device/bootrom/bootrom.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@
#include <stdint.h>

#define MAJOR "00"
#define MINOR "01"
#define MINOR "02"
#define PATCH "00"

const uintptr_t boot_slots[] = { 0x10000000, 0x80000000 };
Expand Down Expand Up @@ -45,6 +45,7 @@ static void clear_slots();
// TODO: Add support to cheri mode
int boot_main(void)
{
uint32_t boot_addr;
struct boot_context boot_ctx = (struct boot_context){
.console = mocha_system_uart(),
.timer = mocha_system_timer(),
Expand All @@ -56,14 +57,13 @@ int boot_main(void)

timer_init(boot_ctx.timer);
timer_enable_write(boot_ctx.timer, true);
if (bootstrap_requested(&boot_ctx)) {
if (bootstrap_requested(&boot_ctx) || !get_boot_addr(&boot_addr)) {

@engdoreis engdoreis Jun 22, 2026

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This will break the opensbi flow in simulation because it doesn't have the magic number. We need to figure out a better solution.

@engdoreis engdoreis Jun 22, 2026

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what if we flash the LEDs inside the exception handler?

@marnovandermaas marnovandermaas Jun 22, 2026

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Yes, I agree that is a better solution!

uprintf(boot_ctx.console, "Entering SPI bootstrap\n");
clear_slots(); // Cleaning slots from previeous boot.
// Spin polling the spi_dev and processing incoming data until a reset command is received.
spi_boot_strap(&boot_ctx);
}

uint32_t boot_addr;
if (!get_boot_addr(&boot_addr)) {
uprintf(boot_ctx.console, "No valid slot found, default to DRAM\n");
boot_addr = dram_base;
Expand Down