diff options
Diffstat (limited to 'src/mainboard/google/nyan/romstage.c')
| -rw-r--r-- | src/mainboard/google/nyan/romstage.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/mainboard/google/nyan/romstage.c b/src/mainboard/google/nyan/romstage.c index a31f1f1519..e7895566f9 100644 --- a/src/mainboard/google/nyan/romstage.c +++ b/src/mainboard/google/nyan/romstage.c @@ -27,6 +27,7 @@ #include <console/console.h> #include "soc/nvidia/tegra124/chip.h" #include <soc/display.h> +#include <timestamp.h> // Convenient shorthand (in MB) #define DRAM_START (CONFIG_SYS_SDRAM_BASE >> 20) @@ -73,6 +74,10 @@ static void configure_l2actlr(void) void main(void) { +#if CONFIG_COLLECT_TIMESTAMPS + uint64_t romstage_start_time = timestamp_get(); +#endif + // Globally disable MMU, caches and branch prediction (these should // already be disabled by default on reset). uint32_t sctlr = read_sctlr(); @@ -89,6 +94,8 @@ void main(void) configure_l2ctlr(); configure_l2actlr(); + console_init(); + mmu_init(); mmu_config_range(0, DRAM_START, DCACHE_OFF); mmu_config_range(DRAM_START, DRAM_SIZE, DCACHE_WRITEBACK); @@ -101,12 +108,15 @@ void main(void) exception_init(); - /* for quality of the user interface, it's important to get + /* For quality of the user experience, it's important to get * the video going ASAP. Because there are long delays in some * of the powerup steps, we do some very early setup here in - * romstage. We don't do this in the bootblock because video - * setup is finicky and subject to change; hence, we do it as - * early as we can in the RW stage, but never in the RO stage. + * romstage. The only thing setup_display does is manage + * 4 GPIOs, under control of the config struct members. + * In general, it is safe to enable panel power, and disable + * anything related to the backlight. If we get something wrong, + * we can easily fix it in ramstage by further GPIO manipulation, + * so we feel it is ok to do some setting at this point. */ const struct device *soc = dev_find_slot(DEVICE_PATH_CPU_CLUSTER, 0); @@ -119,7 +129,15 @@ void main(void) cbmem_initialize_empty(); +#if CONFIG_COLLECT_TIMESTAMPS + timestamp_init(0); + timestamp_add(TS_START_ROMSTAGE, romstage_start_time); + timestamp_add(TS_START_COPYRAM, timestamp_get()); +#endif void *entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram"); +#if CONFIG_COLLECT_TIMESTAMPS + timestamp_add(TS_END_COPYRAM, timestamp_get()); +#endif stage_exit(entry); } |