romstage.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <arch/stages.h>
#include <console/console.h>
#include <delay.h>
#include <soc/emi.h>
#include <soc/mt6366.h>
#include <soc/pll_common.h>
#include <soc/regulator.h>
#include <soc/rtc.h>
 
static void raise_little_cpu_freq(void)
{
        mainboard_set_regulator_vol(MTK_REGULATOR_VPROC12, 1031250);
        mainboard_set_regulator_vol(MTK_REGULATOR_VSRAM_PROC12, 1118750);
        udelay(200);
        mt_pll_raise_little_cpu_freq(2000 * MHz);
        mt_pll_raise_cci_freq(1385 * MHz);
 
        printk(BIOS_INFO, "Check CPU freq: %u KHz, cci: %u KHz\n",
               mt_fmeter_get_freq_khz(FMETER_ABIST, 9),
               mt_fmeter_get_freq_khz(FMETER_ABIST, 7));
}
 
void platform_romstage_main(void)
{
        mt6366_init();
        raise_little_cpu_freq();
        rtc_boot();
        mtk_dram_init();
}