mtcmos.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <delay.h>
#include <device/mmio.h>
#include <soc/spm.h>
 
enum {
        SRAM_ISOINT_B   = 1U << 6,
        SRAM_CKISO      = 1U << 5,
        PWR_CLK_DIS     = 1U << 4,
        PWR_ON_2ND      = 1U << 3,
        PWR_ON          = 1U << 2,
        PWR_ISO         = 1U << 1,
        PWR_RST_B       = 1U << 0
};
 
static void mtcmos_power_on(const struct power_domain_data *pd)
{
        write32(&mtk_spm->poweron_config_set,
                (SPM_PROJECT_CODE << 16) | (1U << 0));
 
        setbits32(pd->pwr_con, PWR_ON);
        setbits32(pd->pwr_con, PWR_ON_2ND);
 
        while (!(read32(&mtk_spm->pwr_status) & pd->pwr_sta_mask) ||
               !(read32(&mtk_spm->pwr_status_2nd) & pd->pwr_sta_mask))
                continue;
 
        clrbits32(pd->pwr_con, PWR_CLK_DIS);
        clrbits32(pd->pwr_con, PWR_ISO);
        setbits32(pd->pwr_con, PWR_RST_B);
        clrbits32(pd->pwr_con, pd->sram_pdn_mask);
 
        while (read32(pd->pwr_con) & pd->sram_ack_mask)
                continue;
 
        if (pd->caps & SCPD_SRAM_ISO) {
                setbits32(pd->pwr_con, SRAM_ISOINT_B);
                udelay(1);
                clrbits32(pd->pwr_con, SRAM_CKISO);
        }
}
 
void mtcmos_display_power_on(void)
{
        int i;
 
        for (i = 0; i < ARRAY_SIZE(disp); i++)
                mtcmos_power_on(&disp[i]);
}
 
void mtcmos_audio_power_on(void)
{
        int i;
 
        for (i = 0; i < ARRAY_SIZE(audio); i++)
                mtcmos_power_on(&audio[i]);
}