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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <delay.h>
#include <device/mmio.h>
#include <soc/dpm.h>
#include <soc/dramc_soc.h>
#include <soc/spm.h>
#include <soc/symbols.h>
static struct dpm_regs *const mtk_dpm2 = (void *)DPM_CFG_BASE2;
static int wake_dpm_sram_up(void)
{
int loop = 100;
/* TODO: convert to new APIs (SET32_BITFIELDS/READ32_BITFIELD) */
setbits32(&mtk_spm->dramc_mcu_sram_con, DRAMC_MCU_SRAM_SLEEP_B_LSB);
setbits32(&mtk_spm->dramc_mcu2_sram_con, DRAMC_MCU2_SRAM_SLEEP_B_LSB);
while (loop > 0 &&
((read32(&mtk_spm->dramc_mcu_sram_con) &
DRAMC_MCU_SRAM_SLEEP_B_LSB) == 0 ||
(read32(&mtk_spm->dramc_mcu2_sram_con) &
DRAMC_MCU2_SRAM_SLEEP_B_LSB) == 0)) {
mdelay(1);
--loop;
}
if (loop == 0) {
printk(BIOS_ERR, "ERROR: failed to wake DPM up.\n");
return -1;
}
setbits32(&mtk_spm->dramc_mcu_sram_con, DRAMC_MCU_SRAM_ISOINT_B_LSB);
setbits32(&mtk_spm->dramc_mcu2_sram_con, DRAMC_MCU2_SRAM_ISOINT_B_LSB);
return 0;
}
static void dpm_mtcoms_sleep_on(void)
{
/* DPM MTCMOS sleep on */
write32(&mtk_spm->dpm0_pwr_con, 0x0000204d);
write32(&mtk_spm->dpm1_pwr_con, 0x0000204d);
mdelay(1);
write32(&mtk_spm->dpm0_pwr_con, 0x0000224d);
write32(&mtk_spm->dpm1_pwr_con, 0x0000224d);
mdelay(1);
clrbits32(&mtk_dpm->sw_rstn, DPM_SW_RSTN_RESET);
clrbits32(&mtk_dpm2->sw_rstn, DPM_SW_RSTN_RESET);
}
static struct mtk_mcu dpm_mcu_4ch[] = {
{
.firmware_name = CONFIG_DPM_DM_FIRMWARE,
.run_address = (void *)DPM_DM_SRAM_BASE2,
},
{
.firmware_name = CONFIG_DPM_PM_FIRMWARE,
.run_address = (void *)DPM_PM_SRAM_BASE2,
.priv = mtk_dpm2,
.reset = dpm_reset,
},
};
int dpm_4ch_init(void)
{
dpm_mtcoms_sleep_on();
if (wake_dpm_sram_up())
return -1;
return 0;
}
int dpm_4ch_para_setting(void)
{
int i;
struct mtk_mcu *dpm;
for (i = 0; i < ARRAY_SIZE(dpm_mcu_4ch); i++) {
dpm = &dpm_mcu_4ch[i];
dpm->load_buffer = _dram_dma;
dpm->buffer_size = REGION_SIZE(dram_dma);
if (mtk_init_mcu(dpm))
return -1;
}
return 0;
}
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