romstage.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <arch/stages.h>
#include <delay.h>
#include <soc/clkbuf.h>
#include <soc/emi.h>
#include <soc/i2c.h>
#include <soc/mt6315.h>
#include <soc/mt6359p.h>
#include <soc/mt6360.h>
#include <soc/pll_common.h>
#include <soc/pmif.h>
#include <soc/rtc.h>
#include <soc/scp.h>
 
static void raise_little_cpu_freq(void)
{
        mt6359p_buck_set_voltage(MT6359P_SRAM_PROC1, 1000 * 1000);
        mt6359p_buck_set_voltage(MT6359P_CORE, 1000 * 1000);
        udelay(200);
        mt_pll_raise_little_cpu_freq(2000 * MHz);
        mt_pll_raise_cci_freq(1385 * MHz);
}
 
void platform_romstage_main(void)
{
        mtk_pmif_init();
        mt6359p_init();
        mt6315_init();
        raise_little_cpu_freq();
        mtk_i2c_bus_init(I2C7, I2C_SPEED_FAST);
        if (CONFIG(BOARD_GOOGLE_CHERRY))
                mt6360_init(I2C7);
        clk_buf_init();
        rtc_boot();
        mtk_dram_init();
        scp_rsi_enable();
}