mtk-lk/platform/mt6768/mtk_mcdi.c

/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
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*/
/* MediaTek Inc. (C) 2017. All rights reserved.
*
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* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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*/

#include <string.h>
#include <platform/mt_typedefs.h>
#include <platform/mt_reg_base.h>
#include <dev/aee_platform_debug.h>
#include "mtk_secure_api.h"
#include <mtk_mcdi.h>

#ifdef CPC_MODE

static void mcdi_get_cpc_info(void)
{
	memcpy((void *)mcdi_sram_cpc_info, (const void *)cpc_wdt_latch_regs, CPC_LATCH_SIZE);

	/* Dump SPMC INFO */
	DRV_WriteReg32(MCDI_SRAM_REG(0x7A0), DRV_Reg32(MCUCFG_REG(0xA748)) & 0x03FF0000);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7A4), DRV_Reg32(MCUCFG_REG(0xA718)) & 0x00FFFFFF);
	/* CPU 0-7 SPMC_PWR_STATUS */
	DRV_WriteReg32(MCDI_SRAM_REG(0x7A8), DRV_Reg32(MCUCFG_REG(0x0214)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7AC), DRV_Reg32(MCUCFG_REG(0x0A14)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7B0), DRV_Reg32(MCUCFG_REG(0x1214)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7B4), DRV_Reg32(MCUCFG_REG(0x1A14)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7B8), DRV_Reg32(MCUCFG_REG(0x2214)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7BC), DRV_Reg32(MCUCFG_REG(0x2A14)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7C0), DRV_Reg32(MCUCFG_REG(0x3214)) & 0x000003FF);
	DRV_WriteReg32(MCDI_SRAM_REG(0x7C4), DRV_Reg32(MCUCFG_REG(0x3A14)) & 0x000003FF);

	mt_secure_call(MTK_SIP_KERNEL_MCDI_ARGS, MCDI_SMC_EVENT_DUMP_TRACE_DATA, 0, 0, 0);
}

#else

static void mcdi_get_cpc_info(void) {}

#endif

void mcdi_setup_file_info_for_kedump(void)
{
	struct aee_db_file_info *ptr;
	const char filename[] = "SYS_MCDI_DATA";
	int max_size = sizeof(ptr[AEE_PLAT_MCDI_DATA].filename) - 1;

	ptr = get_file_info();

	if (!ptr)
		return;

	strncpy(ptr[AEE_PLAT_MCDI_DATA].filename,
			filename,
			max_size);
	ptr[AEE_PLAT_MCDI_DATA].filename[max_size] = '\0';

	ptr[AEE_PLAT_MCDI_DATA].filesize = MCDI_SRAM_LENGTH;

	mcdi_get_cpc_info();
}