mtk-lk/platform/mt6768/md1_off.c

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*
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#include <platform/upmu_hw.h>
#include <platform/sec_devinfo.h>
#include <platform/spm.h>
#include <debug.h>
#define UINT32P         (volatile unsigned int *)
#define INFRA_AO_BASE				(0x10001000)
#define INFRA_AO_MD_SRCCLKENA		(UINT32P (INFRA_AO_BASE+0x0F0C))

#define AP_TOP_CLK_GEN_BASE				(0x10000000)
#define REG_MD_CLK_SETTING			(UINT32P (AP_TOP_CLK_GEN_BASE+0x0000))

#define STA_POWER_DOWN  0
#define STA_POWER_ON    1
static void internal_md1_power_down(void)
{
	unsigned int reg_value;
	/* 0. power on md */
	spm_mtcmos_ctrl_md1(STA_POWER_DOWN);

	/* 1. md clock setting: gating */
	*REG_MD_CLK_SETTING |= ((1<<8)|(1<<9));

	/* 2. mixedsys topsm init, for release srcclkena in kernel */
	reg_value = *INFRA_AO_MD_SRCCLKENA;
	reg_value &= ~0xFF;
	*INFRA_AO_MD_SRCCLKENA = reg_value;
	dprintf(CRITICAL, "[ccci-off]src clk ena = 0x%X\n", *INFRA_AO_MD_SRCCLKENA);
}

void md_power_down(void)
{
	unsigned int val;

	val = get_devinfo_with_index(6);
	if ((val & (0x1 << 0)) == 0)
		internal_md1_power_down();
	else
		dprintf(CRITICAL, "[ccci-off]md1 effused,no need power off\n");
}