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bios/boot: rewrite ROM boot description.

This commit is contained in:
Florent Kermarrec 2020-06-12 10:18:44 +02:00
parent bdcccb9216
commit 05cb5f96a1
1 changed files with 5 additions and 4 deletions
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9
litex/soc/software/bios/boot.c
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@ -86,10 +86,11 @@ enum {
/*-----------------------------------------------------------------------*/ /*-----------------------------------------------------------------------*/
#ifdef ROM_BOOT_ADDRESS #ifdef ROM_BOOT_ADDRESS
/* When firmware is small enough, it can be interesting to run code from an /* Running the application code from ROM is the fastest way to execute code
embedded blockram memory (faster and not impacted by memory controller and could be interesting when the code is small enough, on large devices
activity). Define ROM_BOOT_ADDRESS for that and initialize the blockram where many blockrams are available or simply when the execution speed is
with the firmware data. */ critical. Defining ROM_BOOT_ADDRESS in the SoC will make the BIOS jump to
it at boot. */
void romboot(void) void romboot(void)
{ {
boot(0, 0, 0, ROM_BOOT_ADDRESS); boot(0, 0, 0, ROM_BOOT_ADDRESS);