dpm.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/mmio.h>
#include <soc/dpm.h>
#include <soc/mcu_common.h>
#include <soc/symbols.h>
 
static struct mtk_mcu dpm_mcu[] = {
        {
                .firmware_name = CONFIG_DPM_DM_FIRMWARE,
                .run_address = (void *)DPM_DM_SRAM_BASE,
        },
        {
                .firmware_name = CONFIG_DPM_PM_FIRMWARE,
                .run_address = (void *)DPM_PM_SRAM_BASE,
                .priv = mtk_dpm,
                .reset = dpm_reset,
        },
};
 
void dpm_reset(struct mtk_mcu *mcu)
{
        struct dpm_regs *dpm = mcu->priv;
 
        /* write bootargs */
        write32(&dpm->twam_window_len, 0x0);
        write32(&dpm->twam_mon_type, 0x0);
 
        /* free RST */
        setbits32(&dpm->sw_rstn, DPM_SW_RSTN_RESET);
}
 
int dpm_init(void)
{
        int i;
        struct mtk_mcu *dpm;
 
        if (CONFIG(DPM_FOUR_CHANNEL))
                if (dpm_4ch_init())
                        return -1;
 
        /* config DPM SRAM layout */
        clrsetbits32(&mtk_dpm->sw_rstn, DPM_MEM_RATIO_MASK, DPM_MEM_RATIO_CFG1);
 
        for (i = 0; i < ARRAY_SIZE(dpm_mcu); i++) {
                dpm = &dpm_mcu[i];
                dpm->load_buffer = _dram_dma;
                dpm->buffer_size = REGION_SIZE(dram_dma);
                if (mtk_init_mcu(dpm))
                        return -1;
        }
 
        if (CONFIG(DPM_FOUR_CHANNEL))
                if (dpm_4ch_para_setting())
                        return -1;
 
        return 0;
}