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ARMv8/layerscape: Add FSL PPA support

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The FSL Primary Protected Application (PPA) is a software component
loaded during boot which runs in TrustZone and remains resident
after boot.

Use the secure firmware framework to integrate FSL PPA into U-Boot.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Hou Zhiqiang 2016-06-28 20:18:14 +08:00 • committed by York Sun
parent b45db3b590
commit f1dd4cadd2
4 changed files with 69 additions and 0 deletions
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1
arch/arm/cpu/armv8/fsl-layerscape/Makefile
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@ -10,6 +10,7 @@ obj-y += soc.o
obj-$(CONFIG_MP) += mp.o
obj-$(CONFIG_OF_LIBFDT) += fdt.o
obj-$(CONFIG_SPL) += spl.o
obj-$(CONFIG_FSL_LS_PPA) += ppa.o
ifneq ($(CONFIG_FSL_LSCH3),)
obj-y += fsl_lsch3_speed.o

48
arch/arm/cpu/armv8/fsl-layerscape/ppa.c Normal file
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@ -0,0 +1,48 @@
/*
* Copyright 2016 NXP Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <config.h>
#include <errno.h>
#include <asm/system.h>
#include <asm/types.h>
#include <asm/arch/soc.h>
#ifdef CONFIG_FSL_LSCH3
#include <asm/arch/immap_lsch3.h>
#elif defined(CONFIG_FSL_LSCH2)
#include <asm/arch/immap_lsch2.h>
#endif
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
#include <asm/armv8/sec_firmware.h>
#endif
int ppa_init(void)
{
const void *ppa_fit_addr;
u32 *boot_loc_ptr_l, *boot_loc_ptr_h;
int ret;
#ifdef CONFIG_SYS_LS_PPA_FW_IN_NOR
ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR;
#else
#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
#endif
#ifdef CONFIG_FSL_LSCH3
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
boot_loc_ptr_l = &gur->bootlocptrl;
boot_loc_ptr_h = &gur->bootlocptrh;
#elif defined(CONFIG_FSL_LSCH2)
struct ccsr_scfg __iomem *scfg = (void *)(CONFIG_SYS_FSL_SCFG_ADDR);
boot_loc_ptr_l = &scfg->scratchrw[1];
boot_loc_ptr_h = &scfg->scratchrw[0];
#endif
debug("fsl-ppa: boot_loc_ptr_l = 0x%p, boot_loc_ptr_h =0x%p\n",
boot_loc_ptr_l, boot_loc_ptr_h);
ret = sec_firmware_init(ppa_fit_addr, boot_loc_ptr_l, boot_loc_ptr_h);
return ret;
}

16
arch/arm/include/asm/arch-fsl-layerscape/ppa.h Normal file
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@ -0,0 +1,16 @@
/*
* Copyright 2016 NXP Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __FSL_PPA_H_
#define __FSL_PPA_H_
#define SEC_FIRMWARE_FIT_IMAGE "firmware"
#define SEC_FIRMEWARE_FIT_CNF_NAME "config@1"
#define SEC_FIRMWARE_TARGET_EL 2
int ppa_init(void);
#endif

4
arch/arm/include/asm/armv8/sec_firmware.h
View file

@ -7,6 +7,10 @@
#ifndef __SEC_FIRMWARE_H_
#define __SEC_FIRMWARE_H_
#ifdef CONFIG_FSL_LS_PPA
#include <asm/arch/ppa.h>
#endif
int sec_firmware_init(const void *, u32 *, u32 *);
int _sec_firmware_entry(const void *, u32 *, u32 *);
bool sec_firmware_is_valid(const void *);