diff options
Diffstat (limited to 'src/mainboard/google/oak')
| -rw-r--r-- | src/mainboard/google/oak/romstage.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/mainboard/google/oak/romstage.c b/src/mainboard/google/oak/romstage.c index d72693fa4d..3d018a02b1 100644 --- a/src/mainboard/google/oak/romstage.c +++ b/src/mainboard/google/oak/romstage.c @@ -17,7 +17,7 @@ #include <arch/exception.h> #include <arch/io.h> #include <arch/mmu.h> - +#include <boardid.h> #include <cbfs.h> #include <cbmem.h> #include <console/console.h> @@ -25,14 +25,20 @@ #include <program_loading.h> #include <romstage_handoff.h> #include <symbols.h> +#include <timer.h> #include <timestamp.h> #include <soc/emi.h> #include <soc/mmu_operations.h> +#include <soc/mt6391.h> +#include <soc/pll.h> #include <soc/rtc.h> void main(void) { + int stabilize_usec; + struct stopwatch sw; + timestamp_add_now(TS_START_ROMSTAGE); /* init uart baudrate when pll on */ @@ -41,9 +47,23 @@ void main(void) rtc_boot(); + /* Raise CPU voltage to allow higher frequency */ + stabilize_usec = mt6391_configure_ca53_voltage(1125000); + + stopwatch_init_usecs_expire(&sw, stabilize_usec); + /* init memory */ mt_mem_init(get_sdram_config()); + while (!stopwatch_expired(&sw)) + ; + + /* Set to maximum frequency */ + if (board_id() < 5) + mt_pll_raise_ca53_freq(1600 * MHz); + else + mt_pll_raise_ca53_freq(1700 * MHz); + mt8173_mmu_after_dram(); /* should be called after memory init */ |