ARMv8/layerscape: Add FSL PPA support
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>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Makefile b/arch/arm/cpu/armv8/fsl-layerscape/Makefile
index eb2cbc3..bcf6b48 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Makefile
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Makefile
@@ -10,6 +10,7 @@
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
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/ppa.c b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
new file mode 100644
index 0000000..541b251
--- /dev/null
+++ b/arch/arm/cpu/armv8/fsl-layerscape/ppa.c
@@ -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;
+}