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MT8173: Add Sip function for MTK HW crypt driver 

Change-Id: Idc40cc6243e532567ec4334ae37d97c003c90bfa
Signed-off-by: Yi Zheng <yi.zheng@mediatek.com>
This commit is contained in:
Yi Zheng 2016-05-11 18:45:20 +08:00 committed by Yidi Lin
parent b659b1a755
commit 7ace1cc088
6 changed files with 204 additions and 1 deletions
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144
plat/mediatek/mt8173/drivers/crypt/crypt.c Normal file
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@ -0,0 +1,144 @@
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <arch.h>
#include <arch_helpers.h>
#include <assert.h>
#include <debug.h>
#include <delay_timer.h>
#include <mmio.h>
#include <mt8173_def.h>
#include <mtk_sip_svc.h>
#define crypt_read32(offset) \
mmio_read_32((uintptr_t)(CRYPT_BASE+((offset) * 4)))
#define crypt_write32(offset, value) \
mmio_write_32((uintptr_t)(CRYPT_BASE + ((offset) * 4)), (uint32_t)value)
#define GET_L32(x) ((uint32_t)(x & 0xffffffff))
#define GET_H32(x) ((uint32_t)((x >> 32) & 0xffffffff))
#define REG_INIT 0
#define REG_MSC 4
#define REG_TRIG 256
#define REG_STAT 512
#define REG_CLR 513
#define REG_INT 514
#define REG_P68 768
#define REG_P69 769
#define REG_P70 770
#define REG_P71 771
#define REG_P72 772
#define REG_D20 820
#define KEY_SIZE 160
#define KEY_LEN 40
/* Wait until crypt is completed */
uint64_t crypt_wait(void)
{
crypt_write32(REG_TRIG, 0);
while (crypt_read32(REG_STAT) == 0)
;
udelay(100);
crypt_write32(REG_CLR, crypt_read32(REG_STAT));
crypt_write32(REG_INT, 0);
return MTK_SIP_E_SUCCESS;
}
static uint32_t record[4];
/* Copy encrypted key to crypt engine */
uint64_t crypt_set_hdcp_key_ex(uint64_t x1, uint64_t x2, uint64_t x3)
{
uint32_t i = (uint32_t)x1;
uint32_t j = 0;
if (i > KEY_LEN)
return MTK_SIP_E_INVALID_PARAM;
if (i < KEY_LEN) {
crypt_write32(REG_MSC, 0x80ff3800);
crypt_write32(REG_INIT, 0);
crypt_write32(REG_INIT, 0xF);
crypt_write32(REG_CLR, 1);
crypt_write32(REG_INT, 0);
crypt_write32(REG_P68, 0x70);
crypt_write32(REG_P69, 0x1C0);
crypt_write32(REG_P70, 0x30);
crypt_write32(REG_P71, 0x4);
crypt_wait();
crypt_write32(REG_D20 + 4 * i, GET_L32(x2));
crypt_write32(REG_D20 + 4 * i + 1, GET_H32(x2));
crypt_write32(REG_D20 + 4 * i + 2, GET_L32(x3));
crypt_write32(REG_D20 + 4 * i + 3, GET_H32(x3));
crypt_write32(REG_P69, 0);
crypt_write32(REG_P68, 0x20);
crypt_write32(REG_P71, 0x34 + 4 * i);
crypt_write32(REG_P72, 0x34 + 4 * i);
crypt_wait();
for (j = 0; j < 4; j++) {
crypt_write32(REG_P68, 0x71);
crypt_write32(REG_P69, 0x34 + 4 * i + j);
crypt_write32(REG_P70, record[j]);
crypt_wait();
}
}
/* Prepare data for next iteration */
record[0] = GET_L32(x2);
record[1] = GET_H32(x2);
record[2] = GET_L32(x3);
record[3] = GET_H32(x3);
return MTK_SIP_E_SUCCESS;
}
/* Set key to hdcp */
uint64_t crypt_set_hdcp_key_num(uint32_t num)
{
if (num > KEY_LEN)
return MTK_SIP_E_INVALID_PARAM;
crypt_write32(REG_P68, 0x6A);
crypt_write32(REG_P69, 0x34 + 4 * num);
crypt_wait();
return MTK_SIP_E_SUCCESS;
}
/* Clear key in crypt engine */
uint64_t crypt_clear_hdcp_key(void)
{
uint32_t i;
for (i = 0; i < KEY_SIZE; i++)
crypt_write32(REG_D20 + i, 0);
return MTK_SIP_E_SUCCESS;
}

40
plat/mediatek/mt8173/drivers/crypt/crypt.h Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __CRYPT_H__
#define __CRYPT_H__
#include <stdint.h>
/* crypt function prototype */
uint64_t crypt_set_hdcp_key_ex(uint64_t x1, uint64_t x2, uint64_t x3);
uint64_t crypt_set_hdcp_key_num(uint32_t num);
uint64_t crypt_clear_hdcp_key(void);
#endif /* __CRYPT_H__ */

1
plat/mediatek/mt8173/include/mt8173_def.h
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@ -50,6 +50,7 @@
#define MCUCFG_BASE (IO_PHYS + 0x200000)
#define APMIXED_BASE (IO_PHYS + 0x209000)
#define TRNG_BASE (IO_PHYS + 0x20F000)
#define CRYPT_BASE (IO_PHYS + 0x210000)
#define MT_GIC_BASE (IO_PHYS + 0x220000)
#define PLAT_MT_CCI_BASE (IO_PHYS + 0x390000)

5
plat/mediatek/mt8173/include/plat_sip_calls.h
View File

@ -34,10 +34,13 @@
/*******************************************************************************
* Plat SiP function constants
******************************************************************************/
#define MTK_PLAT_SIP_NUM_CALLS 3
#define MTK_PLAT_SIP_NUM_CALLS 6
#define MTK_SIP_PWR_ON_MTCMOS 0x82000402
#define MTK_SIP_PWR_OFF_MTCMOS 0x82000403
#define MTK_SIP_PWR_MTCMOS_SUPPORT 0x82000404
#define MTK_SIP_SET_HDCP_KEY_NUM 0x82000405
#define MTK_SIP_CLR_HDCP_KEY 0x82000406
#define MTK_SIP_SET_HDCP_KEY_EX 0x82000407
#endif /* __PLAT_SIP_CALLS_H__ */

13
plat/mediatek/mt8173/plat_sip_calls.c
View File

@ -27,6 +27,7 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <crypt.h>
#include <debug.h>
#include <mmio.h>
#include <mtk_sip_svc.h>
@ -111,6 +112,18 @@ uint64_t mediatek_plat_sip_handler(uint32_t smc_fid,
ret = mt_sip_pwr_mtcmos_support();
SMC_RET1(handle, ret);
case MTK_SIP_SET_HDCP_KEY_EX:
ret = crypt_set_hdcp_key_ex(x1, x2, x3);
SMC_RET1(handle, ret);
case MTK_SIP_SET_HDCP_KEY_NUM:
ret = crypt_set_hdcp_key_num((uint32_t)x1);
SMC_RET1(handle, ret);
case MTK_SIP_CLR_HDCP_KEY:
ret = crypt_clear_hdcp_key();
SMC_RET1(handle, ret);
default:
ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
break;

2
plat/mediatek/mt8173/platform.mk
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@ -32,6 +32,7 @@ MTK_PLAT := plat/mediatek
MTK_PLAT_SOC := ${MTK_PLAT}/${PLAT}
PLAT_INCLUDES := -I${MTK_PLAT}/common/ \
-I${MTK_PLAT_SOC}/drivers/crypt/ \
-I${MTK_PLAT_SOC}/drivers/mtcmos/ \
-I${MTK_PLAT_SOC}/drivers/pmic/ \
-I${MTK_PLAT_SOC}/drivers/rtc/ \
@ -61,6 +62,7 @@ BL31_SOURCES += drivers/arm/cci/cci.c \
${MTK_PLAT_SOC}/aarch64/plat_helpers.S \
${MTK_PLAT_SOC}/aarch64/platform_common.c \
${MTK_PLAT_SOC}/bl31_plat_setup.c \
${MTK_PLAT_SOC}/drivers/crypt/crypt.c \
${MTK_PLAT_SOC}/drivers/mtcmos/mtcmos.c \
${MTK_PLAT_SOC}/drivers/pmic/pmic_wrap_init.c \
${MTK_PLAT_SOC}/drivers/rtc/rtc.c \