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/*
* This file is part of the coreboot project.
*
* Copyright 2015 MediaTek Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stddef.h>
#include <arch/io.h>
#include <soc/mtcmos.h>
#include <soc/spm.h>
struct power_domain_data {
void *pwr_con;
u32 pwr_sta_mask;
u32 sram_pdn_mask;
u32 sram_ack_mask;
};
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
};
enum {
DISP_PWR_STA_MASK = 0x1 << 3,
AUDIO_PWR_STA_MASK = 0x1 << 24,
};
static void mtcmos_power_on(const struct power_domain_data *pd)
{
write32(&mtk_spm->poweron_config_set,
(SPM_PROJECT_CODE << 16) | (1U << 0));
setbits_le32(pd->pwr_con, PWR_ON);
setbits_le32(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;
clrbits_le32(pd->pwr_con, PWR_CLK_DIS);
clrbits_le32(pd->pwr_con, PWR_ISO);
setbits_le32(pd->pwr_con, PWR_RST_B);
clrbits_le32(pd->pwr_con, pd->sram_pdn_mask);
while (read32(pd->pwr_con) & pd->sram_ack_mask)
continue;
}
void mtcmos_display_power_on(void)
{
static const struct power_domain_data disp = {
.pwr_con = &mtk_spm->dis_pwr_con,
.pwr_sta_mask = DISP_PWR_STA_MASK,
.sram_pdn_mask = DISP_SRAM_PDN_MASK,
.sram_ack_mask = DISP_SRAM_ACK_MASK,
};
mtcmos_power_on(&disp);
}
void mtcmos_audio_power_on(void)
{
static const struct power_domain_data audio = {
.pwr_con = &mtk_spm->audio_pwr_con,
.pwr_sta_mask = AUDIO_PWR_STA_MASK,
.sram_pdn_mask = AUDIO_SRAM_PDN_MASK,
.sram_ack_mask = AUDIO_SRAM_ACK_MASK,
};
mtcmos_power_on(&audio);
}
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