[U-Boot] [PATCH 0/6] AM43xx OP-TEE support

[U-Boot] [PATCH 0/6] AM43xx OP-TEE support

[Andrew F. Davis]

Hello all,

This series brings our firewall and OP-TEE support from DRA7xx/AM57xx
family devices to the AM43xx class devices. We do this by factoring
out code common code from omap5/ into common mach-omap2/ sources. Then
add the hooks for the AM43xx boards.

Thanks,
Andrew

Andrew F. Davis (6):
  arm: mach-omap2: Move omap5/sec-fxns.c into sec-common.c
  arm: mach-omap2: Factor out common FDT fixup suport
  arm: mach-omap2: fdt-common: Add OP-TEE node when firmware node is
    defined
  arm: mach-omap2: am33xx: Add FDT fixup suport for AM33xx/AM43xx boards
  board: ti: am43xx: Add TEE loading and firewall setup
  board: ti: am43xx: Add FDT fixup for HS devices

 arch/arm/include/asm/omap_common.h                 |   5 +
 arch/arm/include/asm/omap_sec_common.h             |   6 +
 arch/arm/mach-omap2/Kconfig                        |  26 ++++
 arch/arm/mach-omap2/Makefile                       |   2 +
 arch/arm/mach-omap2/am33xx/Makefile                |   1 +
 arch/arm/mach-omap2/am33xx/fdt.c                   |  43 ++++++
 arch/arm/mach-omap2/fdt-common.c                   | 168 +++++++++++++++++++++
 arch/arm/mach-omap2/omap5/Kconfig                  |  26 ----
 arch/arm/mach-omap2/omap5/Makefile                 |   1 -
 arch/arm/mach-omap2/omap5/fdt.c                    | 119 ---------------
 .../mach-omap2/{omap5/sec-fxns.c => sec-common.c}  | 157 ++++++++++++++++++-
 board/ti/am43xx/board.c                            |  16 ++
 configs/am43xx_hs_evm_defconfig                    |   4 +
 13 files changed, 420 insertions(+), 154 deletions(-)
 create mode 100644 arch/arm/mach-omap2/am33xx/fdt.c
 create mode 100644 arch/arm/mach-omap2/fdt-common.c
 rename arch/arm/mach-omap2/{omap5/sec-fxns.c => sec-common.c} (64%)

-- 
2.13.0

[U-Boot] [PATCH 1/6] arm: mach-omap2: Move omap5/sec-fxns.c into sec-common.c

[Andrew F. Davis]

TEE loading and firewall setup are common to all omap2 devices, move
these function out of omap5 and into mach-omap2. This allows us
to use these functions from other omap class devices.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 arch/arm/mach-omap2/Kconfig                        |  26 ++++
 arch/arm/mach-omap2/omap5/Kconfig                  |  26 ----
 arch/arm/mach-omap2/omap5/Makefile                 |   1 -
 .../mach-omap2/{omap5/sec-fxns.c => sec-common.c}  | 155 ++++++++++++++++++++-
 4 files changed, 174 insertions(+), 34 deletions(-)
 rename arch/arm/mach-omap2/{omap5/sec-fxns.c => sec-common.c} (64%)

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 683cdb9296..013586edd9 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -119,6 +119,32 @@ config TI_SECURE_DEVICE
 	  authenticated) and the code. See the doc/README.ti-secure
 	  file for further details.
 
+config TI_SECURE_EMIF_REGION_START
+	hex "Reserved EMIF region start address"
+	depends on TI_SECURE_DEVICE
+	default 0x0
+	help
+	  Reserved EMIF region start address. Set to "0" to auto-select
+	  to be at the end of the external memory region.
+
+config TI_SECURE_EMIF_TOTAL_REGION_SIZE
+	hex "Reserved EMIF region size"
+	depends on TI_SECURE_DEVICE
+	default 0x0
+	help
+	  Total reserved EMIF region size. Default is 0, which means no reserved EMIF
+	  region on secure devices.
+
+config TI_SECURE_EMIF_PROTECTED_REGION_SIZE
+	hex "Size of protected region within reserved EMIF region"
+	depends on TI_SECURE_DEVICE
+	default 0x0
+	help
+	  This config option is used to specify the size of the portion of the total
+	  reserved EMIF region set aside for secure OS needs that will  be protected
+	  using hardware memory firewalls. This value must be smaller than the
+	  TI_SECURE_EMIF_TOTAL_REGION_SIZE value.
+
 source "arch/arm/mach-omap2/omap3/Kconfig"
 
 source "arch/arm/mach-omap2/omap4/Kconfig"
diff --git a/arch/arm/mach-omap2/omap5/Kconfig b/arch/arm/mach-omap2/omap5/Kconfig
index 1a66abdeb2..7e8e532d4c 100644
--- a/arch/arm/mach-omap2/omap5/Kconfig
+++ b/arch/arm/mach-omap2/omap5/Kconfig
@@ -37,32 +37,6 @@ endchoice
 config SYS_SOC
 	default "omap5"
 
-config TI_SECURE_EMIF_REGION_START
-	hex "Reserved EMIF region start address"
-	depends on TI_SECURE_DEVICE
-	default 0x0
-	help
-	  Reserved EMIF region start address. Set to "0" to auto-select
-	  to be at the end of the external memory region.
-
-config TI_SECURE_EMIF_TOTAL_REGION_SIZE
-	hex "Reserved EMIF region size"
-	depends on TI_SECURE_DEVICE
-	default 0x0
-	help
-	  Total reserved EMIF region size. Default is 0, which means no reserved EMIF
-	  region on secure devices.
-
-config TI_SECURE_EMIF_PROTECTED_REGION_SIZE
-	hex "Size of protected region within reserved EMIF region"
-	depends on TI_SECURE_DEVICE
-	default 0x0
-	help
-	  This config option is used to specify the size of the portion of the total
-	  reserved EMIF region set aside for secure OS needs that will  be protected
-	  using hardware memory firewalls. This value must be smaller than the
-	  TI_SECURE_EMIF_TOTAL_REGION_SIZE value.
-
 config OMAP_PLATFORM_RESET_TIME_MAX_USEC
 	int "Something"
 	range 0  31219
diff --git a/arch/arm/mach-omap2/omap5/Makefile b/arch/arm/mach-omap2/omap5/Makefile
index af17a3deab..a6a5d17ff6 100644
--- a/arch/arm/mach-omap2/omap5/Makefile
+++ b/arch/arm/mach-omap2/omap5/Makefile
@@ -14,5 +14,4 @@ obj-y	+= hw_data.o
 obj-y	+= abb.o
 obj-y	+= fdt.o
 obj-$(CONFIG_IODELAY_RECALIBRATION) += dra7xx_iodelay.o
-obj-$(CONFIG_TI_SECURE_DEVICE) += sec-fxns.o
 obj-$(CONFIG_DRA7XX) += sec_entry_cpu1.o
diff --git a/arch/arm/mach-omap2/omap5/sec-fxns.c b/arch/arm/mach-omap2/sec-common.c
similarity index 64%
rename from arch/arm/mach-omap2/omap5/sec-fxns.c
rename to arch/arm/mach-omap2/sec-common.c
index 7fab57592e..f230c9ea4e 100644
--- a/arch/arm/mach-omap2/omap5/sec-fxns.c
+++ b/arch/arm/mach-omap2/sec-common.c
@@ -1,12 +1,14 @@
 /*
  *
- * Security related functions for OMAP5 class devices
+ * Common security related functions for OMAP devices
  *
- * (C) Copyright 2016
+ * (C) Copyright 2016-2017
  * Texas Instruments, <www.ti.com>
  *
  * Daniel Allred <d-allred@ti.com>
+ * Andreas Dannenberg <dannenberg@ti.com>
  * Harinarayan Bhatta <harinarayan@ti.com>
+ * Andrew F. Davis <afd@ti.com>
  *
  * SPDX-License-Identifier: GPL-2.0+
  */
@@ -15,14 +17,22 @@
 #include <stdarg.h>
 
 #include <asm/arch/sys_proto.h>
+#include <asm/cache.h>
 #include <asm/omap_common.h>
 #include <asm/omap_sec_common.h>
 #include <asm/spl.h>
-#include <spl.h>
-#include <asm/cache.h>
+#include <asm/ti-common/sys_proto.h>
 #include <mapmem.h>
+#include <spl.h>
 #include <tee/optee.h>
 
+/* Index for signature verify ROM API */
+#ifdef CONFIG_AM33XX
+#define API_HAL_KM_VERIFYCERTIFICATESIGNATURE_INDEX	(0x0000000C)
+#else
+#define API_HAL_KM_VERIFYCERTIFICATESIGNATURE_INDEX	(0x0000000E)
+#endif
+
 /* Index for signature PPA-based TI HAL APIs */
 #define PPA_HAL_SERVICES_START_INDEX        (0x200)
 #define PPA_SERV_HAL_TEE_LOAD_MASTER        (PPA_HAL_SERVICES_START_INDEX + 23)
@@ -43,6 +53,129 @@ struct ppa_tee_load_info {
 	u32 tee_arg0;          /* argument to TEE jump function, in r0 */
 };
 
+static uint32_t secure_rom_call_args[5] __aligned(ARCH_DMA_MINALIGN);
+
+u32 secure_rom_call(u32 service, u32 proc_id, u32 flag, ...)
+{
+	int i;
+	u32 num_args;
+	va_list ap;
+
+	va_start(ap, flag);
+
+	num_args = va_arg(ap, u32);
+
+	if (num_args > 4) {
+		va_end(ap);
+		return 1;
+	}
+
+	/* Copy args to aligned args structure */
+	for (i = 0; i < num_args; i++)
+		secure_rom_call_args[i + 1] = va_arg(ap, u32);
+
+	secure_rom_call_args[0] = num_args;
+
+	va_end(ap);
+
+	/* if data cache is enabled, flush the aligned args structure */
+	flush_dcache_range(
+		(unsigned int)&secure_rom_call_args[0],
+		(unsigned int)&secure_rom_call_args[0] +
+		roundup(sizeof(secure_rom_call_args), ARCH_DMA_MINALIGN));
+
+	return omap_smc_sec(service, proc_id, flag, secure_rom_call_args);
+}
+
+static u32 find_sig_start(char *image, size_t size)
+{
+	char *image_end = image + size;
+	char *sig_start_magic = "CERT_";
+	int magic_str_len = strlen(sig_start_magic);
+	char *ch;
+
+	while (--image_end > image) {
+		if (*image_end == '_') {
+			ch = image_end - magic_str_len + 1;
+			if (!strncmp(ch, sig_start_magic, magic_str_len))
+				return (u32)ch;
+		}
+	}
+	return 0;
+}
+
+int secure_boot_verify_image(void **image, size_t *size)
+{
+	int result = 1;
+	u32 cert_addr, sig_addr;
+	size_t cert_size;
+
+	/* Perform cache writeback on input buffer */
+	flush_dcache_range(
+		(u32)*image,
+		(u32)*image + roundup(*size, ARCH_DMA_MINALIGN));
+
+	cert_addr = (uint32_t)*image;
+	sig_addr = find_sig_start((char *)*image, *size);
+
+	if (sig_addr == 0) {
+		printf("No signature found in image!\n");
+		result = 1;
+		goto auth_exit;
+	}
+
+	*size = sig_addr - cert_addr;	/* Subtract out the signature size */
+	cert_size = *size;
+
+	/* Check if image load address is 32-bit aligned */
+	if (!IS_ALIGNED(cert_addr, 4)) {
+		printf("Image is not 4-byte aligned!\n");
+		result = 1;
+		goto auth_exit;
+	}
+
+	/* Image size also should be multiple of 4 */
+	if (!IS_ALIGNED(cert_size, 4)) {
+		printf("Image size is not 4-byte aligned!\n");
+		result = 1;
+		goto auth_exit;
+	}
+
+	/* Call ROM HAL API to verify certificate signature */
+	debug("%s: load_addr = %x, size = %x, sig_addr = %x\n", __func__,
+	      cert_addr, cert_size, sig_addr);
+
+	result = secure_rom_call(
+		API_HAL_KM_VERIFYCERTIFICATESIGNATURE_INDEX, 0, 0,
+		4, cert_addr, cert_size, sig_addr, 0xFFFFFFFF);
+
+	/* Perform cache writeback on output buffer */
+	flush_dcache_range(
+		(u32)*image,
+		(u32)*image + roundup(*size, ARCH_DMA_MINALIGN));
+
+auth_exit:
+	if (result != 0) {
+		printf("Authentication failed!\n");
+		printf("Return Value = %08X\n", result);
+		hang();
+	}
+
+	/*
+	 * Output notification of successful authentication as well the name of
+	 * the signing certificate used to re-assure the user that the secure
+	 * code is being processed as expected. However suppress any such log
+	 * output in case of building for SPL and booting via YMODEM. This is
+	 * done to avoid disturbing the YMODEM serial protocol transactions.
+	 */
+	if (!(IS_ENABLED(CONFIG_SPL_BUILD) &&
+	      IS_ENABLED(CONFIG_SPL_YMODEM_SUPPORT) &&
+	      spl_boot_device() == BOOT_DEVICE_UART))
+		printf("Authentication passed: %s\n", (char *)sig_addr);
+
+	return result;
+}
+
 static u32 get_sec_mem_start(void)
 {
 	u32 sec_mem_start = CONFIG_TI_SECURE_EMIF_REGION_START;
@@ -55,8 +188,14 @@ static u32 get_sec_mem_start(void)
 	 */
 	if (sec_mem_start == 0)
 		sec_mem_start =
-			(CONFIG_SYS_SDRAM_BASE +
-			(omap_sdram_size() - sec_mem_size));
+			(CONFIG_SYS_SDRAM_BASE + (
+#if defined(CONFIG_OMAP54XX)
+			omap_sdram_size()
+#else
+			get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				     CONFIG_MAX_RAM_BANK_SIZE)
+#endif
+			- sec_mem_size));
 	return sec_mem_start;
 }
 
@@ -151,7 +290,6 @@ int secure_tee_install(u32 addr)
 	u32 tee_file_size;
 	u32 sec_mem_start = get_sec_mem_start();
 	const u32 size = CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE;
-	u32 *smc_cpu1_params;
 	u32 ret;
 
 	/* If there is no protected region, there is no place to put the TEE */
@@ -211,7 +349,9 @@ int secure_tee_install(u32 addr)
 	}
 	printf("TEE_LOAD_MASTER Done\n");
 
+#if defined(CONFIG_OMAP54XX)
 	if (!is_dra72x()) {
+		u32 *smc_cpu1_params;
 		/* Reuse the tee_info buffer for SMC params */
 		smc_cpu1_params = (u32 *)&tee_info;
 		smc_cpu1_params[0] = 0;
@@ -227,6 +367,7 @@ int secure_tee_install(u32 addr)
 		}
 		printf("TEE_LOAD_SLAVE Done\n");
 	}
+#endif
 
 	tee_loaded = 1;
 
-- 
2.13.0

[U-Boot] [PATCH 1/6] arm: mach-omap2: Move omap5/sec-fxns.c into sec-common.c

[Lokesh Vutla]

On Saturday 17 June 2017 12:56 AM, Andrew F. Davis wrote:
> TEE loading and firewall setup are common to all omap2 devices, move
> these function out of omap5 and into mach-omap2. This allows us
> to use these functions from other omap class devices.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

Thanks and regards,
Lokesh

[U-Boot] [PATCH 1/6] arm: mach-omap2: Move omap5/sec-fxns.c into sec-common.c

[Tom Rini]

On Fri, Jun 16, 2017 at 02:26:56PM -0500, Andrew F. Davis wrote:

> TEE loading and firewall setup are common to all omap2 devices, move
> these function out of omap5 and into mach-omap2. This allows us
> to use these functions from other omap class devices.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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[U-Boot] [PATCH 2/6] arm: mach-omap2: Factor out common FDT fixup suport

[Andrew F. Davis]

Some of the fixups currently done for OMAP5 class boards are common to
other OMAP family devices, move these to fdt-common.c.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 arch/arm/include/asm/omap_common.h     |   5 ++
 arch/arm/include/asm/omap_sec_common.h |   6 ++
 arch/arm/mach-omap2/Makefile           |   2 +
 arch/arm/mach-omap2/fdt-common.c       | 160 +++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/omap5/fdt.c        | 119 ------------------------
 arch/arm/mach-omap2/sec-common.c       |   2 +-
 6 files changed, 174 insertions(+), 120 deletions(-)
 create mode 100644 arch/arm/mach-omap2/fdt-common.c

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index d2ca277772..ef5c481349 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -680,6 +680,11 @@ void omap_die_id(unsigned int *die_id);
 /* Initialize general purpose I2C(0) on the SoC */
 void gpi2c_init(void);
 
+/* Common FDT Fixups */
+int ft_hs_disable_rng(void *fdt, bd_t *bd);
+int ft_hs_fixup_dram(void *fdt, bd_t *bd);
+int ft_hs_add_tee(void *fdt, bd_t *bd);
+
 /* ABB */
 #define OMAP_ABB_NOMINAL_OPP		0
 #define OMAP_ABB_FAST_OPP		1
diff --git a/arch/arm/include/asm/omap_sec_common.h b/arch/arm/include/asm/omap_sec_common.h
index 79f1fbd2c1..76d0862270 100644
--- a/arch/arm/include/asm/omap_sec_common.h
+++ b/arch/arm/include/asm/omap_sec_common.h
@@ -28,6 +28,12 @@ u32 secure_rom_call(u32 service, u32 proc_id, u32 flag, ...);
 int secure_boot_verify_image(void **p_image, size_t *p_size);
 
 /*
+ * Return the start of secure reserved RAM, if a default start address has
+ * not been configured then return a region at the end of the external DRAM.
+ */
+u32 get_sec_mem_start(void);
+
+/*
  * Invoke a secure HAL API that allows configuration of the external memory
  * firewall regions.
  */
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index d43085ca98..d86643db34 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -45,4 +45,6 @@ obj-y	+= lowlevel_init.o
 
 obj-y	+= mem-common.o
 
+obj-y	+= fdt-common.o
+
 obj-$(CONFIG_TI_SECURE_DEVICE) += sec-common.o
diff --git a/arch/arm/mach-omap2/fdt-common.c b/arch/arm/mach-omap2/fdt-common.c
new file mode 100644
index 0000000000..297d4d4df5
--- /dev/null
+++ b/arch/arm/mach-omap2/fdt-common.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2016-2017 Texas Instruments, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+#include <asm/omap_common.h>
+#include <asm/omap_sec_common.h>
+
+#ifdef CONFIG_TI_SECURE_DEVICE
+
+/* Give zero values if not already defined */
+#ifndef TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ
+#define TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ (0)
+#endif
+#ifndef CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ
+#define CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ (0)
+#endif
+
+int ft_hs_disable_rng(void *fdt, bd_t *bd)
+{
+	const char *path;
+	int offs;
+	int ret;
+
+	/* Make HW RNG reserved for secure world use */
+	path = "/ocp/rng";
+	offs = fdt_path_offset(fdt, path);
+	if (offs < 0) {
+		debug("Node %s not found.\n", path);
+		return 0;
+	}
+	ret = fdt_setprop_string(fdt, offs,
+				 "status", "disabled");
+	if (ret < 0) {
+		printf("Could not add status property to node %s: %s\n",
+		       path, fdt_strerror(ret));
+		return ret;
+	}
+	return 0;
+}
+
+#if (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE != 0)
+/*
+ * fdt_pack_reg - pack address and size array into the "reg"-suitable stream
+ */
+static int fdt_pack_reg(const void *fdt, void *buf, u64 address, u64 size)
+{
+	int address_cells = fdt_address_cells(fdt, 0);
+	int size_cells = fdt_size_cells(fdt, 0);
+	char *p = buf;
+
+	if (address_cells == 2)
+		*(fdt64_t *)p = cpu_to_fdt64(address);
+	else
+		*(fdt32_t *)p = cpu_to_fdt32(address);
+	p += 4 * address_cells;
+
+	if (size_cells == 2)
+		*(fdt64_t *)p = cpu_to_fdt64(size);
+	else
+		*(fdt32_t *)p = cpu_to_fdt32(size);
+	p += 4 * size_cells;
+
+	return p - (char *)buf;
+}
+
+int ft_hs_fixup_dram(void *fdt, bd_t *bd)
+{
+	const char *path, *subpath;
+	int offs, len;
+	u32 sec_mem_start = get_sec_mem_start();
+	u32 sec_mem_size = CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE;
+	fdt32_t address_cells = cpu_to_fdt32(fdt_address_cells(fdt, 0));
+	fdt32_t size_cells = cpu_to_fdt32(fdt_size_cells(fdt, 0));
+	u8 temp[16]; /* Up to 64-bit address + 64-bit size */
+
+	/* Delete any original secure_reserved node */
+	path = "/reserved-memory/secure_reserved";
+	offs = fdt_path_offset(fdt, path);
+	if (offs >= 0)
+		fdt_del_node(fdt, offs);
+
+	/* Add new secure_reserved node */
+	path = "/reserved-memory";
+	offs = fdt_path_offset(fdt, path);
+	if (offs < 0) {
+		debug("Node %s not found\n", path);
+		path = "/";
+		subpath = "reserved-memory";
+		offs = fdt_path_offset(fdt, path);
+		offs = fdt_add_subnode(fdt, offs, subpath);
+		if (offs < 0) {
+			printf("Could not create %s%s node.\n", path, subpath);
+			return 1;
+		}
+		path = "/reserved-memory";
+		offs = fdt_path_offset(fdt, path);
+
+		fdt_setprop(fdt, offs, "#address-cells", &address_cells, sizeof(address_cells));
+		fdt_setprop(fdt, offs, "#size-cells", &size_cells, sizeof(size_cells));
+		fdt_setprop(fdt, offs, "ranges", NULL, 0);
+	}
+
+	subpath = "secure_reserved";
+	offs = fdt_add_subnode(fdt, offs, subpath);
+	if (offs < 0) {
+		printf("Could not create %s%s node.\n", path, subpath);
+		return 1;
+	}
+
+	fdt_setprop_string(fdt, offs, "compatible", "ti,secure-memory");
+	fdt_setprop_string(fdt, offs, "status", "okay");
+	fdt_setprop(fdt, offs, "no-map", NULL, 0);
+	len = fdt_pack_reg(fdt, temp, sec_mem_start, sec_mem_size);
+	fdt_setprop(fdt, offs, "reg", temp, len);
+
+	return 0;
+}
+#else
+int ft_hs_fixup_dram(void *fdt, bd_t *bd) { return 0; }
+#endif
+
+int ft_hs_add_tee(void *fdt, bd_t *bd)
+{
+	const char *path, *subpath;
+	int offs;
+
+	extern int tee_loaded;
+	if (!tee_loaded)
+		return 0;
+
+	path = "/";
+	offs = fdt_path_offset(fdt, path);
+
+	subpath = "firmware";
+	offs = fdt_add_subnode(fdt, offs, subpath);
+	if (offs < 0) {
+		printf("Could not create %s node.\n", subpath);
+		return 1;
+	}
+
+	subpath = "optee";
+	offs = fdt_add_subnode(fdt, offs, subpath);
+	if (offs < 0) {
+		printf("Could not create %s node.\n", subpath);
+		return 1;
+	}
+
+	fdt_setprop_string(fdt, offs, "compatible", "linaro,optee-tz");
+	fdt_setprop_string(fdt, offs, "method", "smc");
+
+	return 0;
+}
+
+#endif
diff --git a/arch/arm/mach-omap2/omap5/fdt.c b/arch/arm/mach-omap2/omap5/fdt.c
index 7a3a8db517..1e556da9be 100644
--- a/arch/arm/mach-omap2/omap5/fdt.c
+++ b/arch/arm/mach-omap2/omap5/fdt.c
@@ -90,29 +90,6 @@ static int ft_hs_fixup_crossbar(void *fdt, bd_t *bd)
 	return 0;
 }
 
-static int ft_hs_disable_rng(void *fdt, bd_t *bd)
-{
-	const char *path;
-	int offs;
-	int ret;
-
-	/* Make HW RNG reserved for secure world use */
-	path = "/ocp/rng";
-	offs = fdt_path_offset(fdt, path);
-	if (offs < 0) {
-		debug("Node %s not found.\n", path);
-		return 0;
-	}
-	ret = fdt_setprop_string(fdt, offs,
-				 "status", "disabled");
-	if (ret < 0) {
-		printf("Could not add status property to node %s: %s\n",
-		       path, fdt_strerror(ret));
-		return ret;
-	}
-	return 0;
-}
-
 #if ((TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ != 0) || \
     (CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ != 0))
 static int ft_hs_fixup_sram(void *fdt, bd_t *bd)
@@ -153,102 +130,6 @@ static int ft_hs_fixup_sram(void *fdt, bd_t *bd)
 static int ft_hs_fixup_sram(void *fdt, bd_t *bd) { return 0; }
 #endif
 
-#if (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE != 0)
-static int ft_hs_fixup_dram(void *fdt, bd_t *bd)
-{
-	const char *path, *subpath;
-	int offs;
-	u32 sec_mem_start = CONFIG_TI_SECURE_EMIF_REGION_START;
-	u32 sec_mem_size = CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE;
-	fdt64_t temp[2];
-	fdt32_t two;
-
-	/* If start address is zero, place@end of DRAM */
-	if (0 == sec_mem_start)
-		sec_mem_start =
-			(CONFIG_SYS_SDRAM_BASE +
-			(omap_sdram_size() - sec_mem_size));
-
-	/* Delete any original secure_reserved node */
-	path = "/reserved-memory/secure_reserved";
-	offs = fdt_path_offset(fdt, path);
-	if (offs >= 0)
-		fdt_del_node(fdt, offs);
-
-	/* Add new secure_reserved node */
-	path = "/reserved-memory";
-	offs = fdt_path_offset(fdt, path);
-	if (offs < 0) {
-		debug("Node %s not found\n", path);
-		path = "/";
-		subpath = "reserved-memory";
-		offs = fdt_path_offset(fdt, path);
-		offs = fdt_add_subnode(fdt, offs, subpath);
-		if (offs < 0) {
-			printf("Could not create %s%s node.\n", path, subpath);
-			return 1;
-		}
-		path = "/reserved-memory";
-		offs = fdt_path_offset(fdt, path);
-		two = cpu_to_fdt32(2);
-		fdt_setprop(fdt, offs, "#address-cells", &two, sizeof(two));
-		fdt_setprop(fdt, offs, "#size-cells", &two, sizeof(two));
-		fdt_setprop(fdt, offs, "ranges", NULL, 0);
-	}
-
-	subpath = "secure_reserved";
-	offs = fdt_add_subnode(fdt, offs, subpath);
-	if (offs < 0) {
-		printf("Could not create %s%s node.\n", path, subpath);
-		return 1;
-	}
-
-	temp[0] = cpu_to_fdt64(((u64)sec_mem_start));
-	temp[1] = cpu_to_fdt64(((u64)sec_mem_size));
-	fdt_setprop_string(fdt, offs, "compatible",
-			   "ti,dra7-secure-memory");
-	fdt_setprop_string(fdt, offs, "status", "okay");
-	fdt_setprop(fdt, offs, "no-map", NULL, 0);
-	fdt_setprop(fdt, offs, "reg", temp, sizeof(temp));
-
-	return 0;
-}
-#else
-static int ft_hs_fixup_dram(void *fdt, bd_t *bd) { return 0; }
-#endif
-
-static int ft_hs_add_tee(void *fdt, bd_t *bd)
-{
-	const char *path, *subpath;
-	int offs;
-
-	extern int tee_loaded;
-	if (!tee_loaded)
-		return 0;
-
-	path = "/";
-	offs = fdt_path_offset(fdt, path);
-
-	subpath = "firmware";
-	offs = fdt_add_subnode(fdt, offs, subpath);
-	if (offs < 0) {
-		printf("Could not create %s node.\n", subpath);
-		return 1;
-	}
-
-	subpath = "optee";
-	offs = fdt_add_subnode(fdt, offs, subpath);
-	if (offs < 0) {
-		printf("Could not create %s node.\n", subpath);
-		return 1;
-	}
-
-	fdt_setprop_string(fdt, offs, "compatible", "linaro,optee-tz");
-	fdt_setprop_string(fdt, offs, "method", "smc");
-
-	return 0;
-}
-
 static void ft_hs_fixups(void *fdt, bd_t *bd)
 {
 	/* Check we are running on an HS/EMU device type */
diff --git a/arch/arm/mach-omap2/sec-common.c b/arch/arm/mach-omap2/sec-common.c
index f230c9ea4e..030b36f332 100644
--- a/arch/arm/mach-omap2/sec-common.c
+++ b/arch/arm/mach-omap2/sec-common.c
@@ -176,7 +176,7 @@ auth_exit:
 	return result;
 }
 
-static u32 get_sec_mem_start(void)
+u32 get_sec_mem_start(void)
 {
 	u32 sec_mem_start = CONFIG_TI_SECURE_EMIF_REGION_START;
 	u32 sec_mem_size = CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE;
-- 
2.13.0

[U-Boot] [PATCH 2/6] arm: mach-omap2: Factor out common FDT fixup suport

[Lokesh Vutla]

On Saturday 17 June 2017 12:56 AM, Andrew F. Davis wrote:
> Some of the fixups currently done for OMAP5 class boards are common to
> other OMAP family devices, move these to fdt-common.c.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

Thanks and regards,
Lokesh

[U-Boot] [PATCH 2/6] arm: mach-omap2: Factor out common FDT fixup suport

[Tom Rini]

On Fri, Jun 16, 2017 at 02:26:57PM -0500, Andrew F. Davis wrote:

> Some of the fixups currently done for OMAP5 class boards are common to
> other OMAP family devices, move these to fdt-common.c.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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[U-Boot] [PATCH 3/6] arm: mach-omap2: fdt-common: Add OP-TEE node when firmware node is defined

[Andrew F. Davis]

If a firmware node is already present in the FDT we will fail to create
one and so fail to add our OP-TEE node, make this fixup first check for
a firmware node and then only try to add one if it is not found.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 arch/arm/mach-omap2/fdt-common.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/fdt-common.c b/arch/arm/mach-omap2/fdt-common.c
index 297d4d4df5..9297e9db48 100644
--- a/arch/arm/mach-omap2/fdt-common.c
+++ b/arch/arm/mach-omap2/fdt-common.c
@@ -134,14 +134,22 @@ int ft_hs_add_tee(void *fdt, bd_t *bd)
 	if (!tee_loaded)
 		return 0;
 
-	path = "/";
+	path = "/firmware";
 	offs = fdt_path_offset(fdt, path);
-
-	subpath = "firmware";
-	offs = fdt_add_subnode(fdt, offs, subpath);
 	if (offs < 0) {
-		printf("Could not create %s node.\n", subpath);
-		return 1;
+		path = "/";
+		offs = fdt_path_offset(fdt, path);
+		if (offs < 0) {
+			printf("Could not find root node.\n");
+			return 1;
+		}
+
+		subpath = "firmware";
+		offs = fdt_add_subnode(fdt, offs, subpath);
+		if (offs < 0) {
+			printf("Could not create %s node.\n", subpath);
+			return 1;
+		}
 	}
 
 	subpath = "optee";
-- 
2.13.0

[U-Boot] [PATCH 3/6] arm: mach-omap2: fdt-common: Add OP-TEE node when firmware node is defined

[Lokesh Vutla]

On Saturday 17 June 2017 12:56 AM, Andrew F. Davis wrote:
> If a firmware node is already present in the FDT we will fail to create
> one and so fail to add our OP-TEE node, make this fixup first check for
> a firmware node and then only try to add one if it is not found.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

Thanks and regards,
Lokesh

[U-Boot] [PATCH 4/6] arm: mach-omap2: am33xx: Add FDT fixup suport for AM33xx/AM43xx boards

[Andrew F. Davis]

Similar to what is done with OMAP5 class boards we need to
perform fixups common to this SoC class, add support for this here
and add HS fixups.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 arch/arm/mach-omap2/am33xx/Makefile |  1 +
 arch/arm/mach-omap2/am33xx/fdt.c    | 43 +++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 arch/arm/mach-omap2/am33xx/fdt.c

diff --git a/arch/arm/mach-omap2/am33xx/Makefile b/arch/arm/mach-omap2/am33xx/Makefile
index b2f8158e73..9d4f83cb75 100644
--- a/arch/arm/mach-omap2/am33xx/Makefile
+++ b/arch/arm/mach-omap2/am33xx/Makefile
@@ -23,6 +23,7 @@ obj-y	+= board.o
 obj-y	+= mux.o
 obj-y	+= prcm-regs.o
 obj-y	+= hw_data.o
+obj-y	+= fdt.o
 
 obj-$(CONFIG_CLOCK_SYNTHESIZER)	+= clk_synthesizer.o
 
diff --git a/arch/arm/mach-omap2/am33xx/fdt.c b/arch/arm/mach-omap2/am33xx/fdt.c
new file mode 100644
index 0000000000..02e8243800
--- /dev/null
+++ b/arch/arm/mach-omap2/am33xx/fdt.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017 Texas Instruments, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <malloc.h>
+
+#include <asm/omap_common.h>
+#include <asm/arch-am33xx/sys_proto.h>
+
+#ifdef CONFIG_TI_SECURE_DEVICE
+
+static void ft_hs_fixups(void *fdt, bd_t *bd)
+{
+	/* Check we are running on an HS/EMU device type */
+	if (GP_DEVICE != get_device_type()) {
+		if ((ft_hs_disable_rng(fdt, bd) == 0) &&
+		    (ft_hs_fixup_dram(fdt, bd) == 0) &&
+		    (ft_hs_add_tee(fdt, bd) == 0))
+			return;
+	} else {
+		printf("ERROR: Incorrect device type (GP) detected!");
+	}
+	/* Fixup failed or wrong device type */
+	hang();
+}
+#else
+static void ft_hs_fixups(void *fdt, bd_t *bd) { }
+#endif /* #ifdef CONFIG_TI_SECURE_DEVICE */
+
+/*
+ * Place for general cpu/SoC FDT fixups. Board specific
+ * fixups should remain in the board files which is where
+ * this function should be called from.
+ */
+void ft_cpu_setup(void *fdt, bd_t *bd)
+{
+	ft_hs_fixups(fdt, bd);
+}
-- 
2.13.0

[U-Boot] [PATCH 4/6] arm: mach-omap2: am33xx: Add FDT fixup suport for AM33xx/AM43xx boards

[Lokesh Vutla]

On Saturday 17 June 2017 12:56 AM, Andrew F. Davis wrote:
> Similar to what is done with OMAP5 class boards we need to
> perform fixups common to this SoC class, add support for this here
> and add HS fixups.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

Thanks and regards,
Lokesh

[U-Boot] [PATCH 4/6] arm: mach-omap2: am33xx: Add FDT fixup suport for AM33xx/AM43xx boards

[Tom Rini]

On Fri, Jun 16, 2017 at 02:26:59PM -0500, Andrew F. Davis wrote:

> Similar to what is done with OMAP5 class boards we need to
> perform fixups common to this SoC class, add support for this here
> and add HS fixups.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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[U-Boot] [PATCH 5/6] board: ti: am43xx: Add TEE loading and firewall setup

[Andrew F. Davis]

Add support for loading a TEE and setting up firewalled regions to
AM43xx HS boards.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 board/ti/am43xx/board.c         | 7 +++++++
 configs/am43xx_hs_evm_defconfig | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index 54f40e64a4..96032215a6 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -859,4 +859,11 @@ void board_fit_image_post_process(void **p_image, size_t *p_size)
 {
 	secure_boot_verify_image(p_image, p_size);
 }
+
+void board_tee_image_process(ulong tee_image, size_t tee_size)
+{
+	secure_tee_install((u32)tee_image);
+}
+
+U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_TEE, board_tee_image_process);
 #endif
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index 6f3cb516fd..37d8e484db 100644
--- a/configs/am43xx_hs_evm_defconfig
+++ b/configs/am43xx_hs_evm_defconfig
@@ -4,6 +4,9 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_AM43XX=y
 CONFIG_TI_COMMON_CMD_OPTIONS=y
 CONFIG_TI_SECURE_DEVICE=y
+CONFIG_TI_SECURE_EMIF_REGION_START=0xbdb00000
+CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000
+CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000
 CONFIG_TARGET_AM43XX_EVM=y
 CONFIG_ISW_ENTRY_ADDR=0x403018e0
 CONFIG_SPL_STACK_R_ADDR=0x82000000
-- 
2.13.0

[U-Boot] [PATCH 5/6] board: ti: am43xx: Add TEE loading and firewall setup

[Lokesh Vutla]

On Saturday 17 June 2017 12:57 AM, Andrew F. Davis wrote:
> Add support for loading a TEE and setting up firewalled regions to
> AM43xx HS boards.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>
> ---
>  board/ti/am43xx/board.c         | 7 +++++++
>  configs/am43xx_hs_evm_defconfig | 3 +++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
> index 54f40e64a4..96032215a6 100644
> --- a/board/ti/am43xx/board.c
> +++ b/board/ti/am43xx/board.c
> @@ -859,4 +859,11 @@ void board_fit_image_post_process(void **p_image, size_t *p_size)
>  {
>  	secure_boot_verify_image(p_image, p_size);
>  }
> +
> +void board_tee_image_process(ulong tee_image, size_t tee_size)
> +{
> +	secure_tee_install((u32)tee_image);
> +}
> +
> +U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_TEE, board_tee_image_process);
>  #endif
> diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
> index 6f3cb516fd..37d8e484db 100644
> --- a/configs/am43xx_hs_evm_defconfig
> +++ b/configs/am43xx_hs_evm_defconfig
> @@ -4,6 +4,9 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
>  CONFIG_AM43XX=y
>  CONFIG_TI_COMMON_CMD_OPTIONS=y
>  CONFIG_TI_SECURE_DEVICE=y
> +CONFIG_TI_SECURE_EMIF_REGION_START=0xbdb00000

You might want to include CONFIG_PRAM inorder to not overlap relocation
with this region?

Thanks and regards,
Lokesh

> +CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000
> +CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000
>  CONFIG_TARGET_AM43XX_EVM=y
>  CONFIG_ISW_ENTRY_ADDR=0x403018e0
>  CONFIG_SPL_STACK_R_ADDR=0x82000000
> 

[U-Boot] [PATCH 5/6] board: ti: am43xx: Add TEE loading and firewall setup

[Andrew F. Davis]

On 06/17/2017 02:35 AM, Lokesh Vutla wrote:
> 
> 
> On Saturday 17 June 2017 12:57 AM, Andrew F. Davis wrote:
>> Add support for loading a TEE and setting up firewalled regions to
>> AM43xx HS boards.
>>
>> Signed-off-by: Andrew F. Davis <afd@ti.com>
>> ---
>>  board/ti/am43xx/board.c         | 7 +++++++
>>  configs/am43xx_hs_evm_defconfig | 3 +++
>>  2 files changed, 10 insertions(+)
>>
>> diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
>> index 54f40e64a4..96032215a6 100644
>> --- a/board/ti/am43xx/board.c
>> +++ b/board/ti/am43xx/board.c
>> @@ -859,4 +859,11 @@ void board_fit_image_post_process(void **p_image, size_t *p_size)
>>  {
>>  	secure_boot_verify_image(p_image, p_size);
>>  }
>> +
>> +void board_tee_image_process(ulong tee_image, size_t tee_size)
>> +{
>> +	secure_tee_install((u32)tee_image);
>> +}
>> +
>> +U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_TEE, board_tee_image_process);
>>  #endif
>> diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
>> index 6f3cb516fd..37d8e484db 100644
>> --- a/configs/am43xx_hs_evm_defconfig
>> +++ b/configs/am43xx_hs_evm_defconfig
>> @@ -4,6 +4,9 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
>>  CONFIG_AM43XX=y
>>  CONFIG_TI_COMMON_CMD_OPTIONS=y
>>  CONFIG_TI_SECURE_DEVICE=y
>> +CONFIG_TI_SECURE_EMIF_REGION_START=0xbdb00000
> 
> You might want to include CONFIG_PRAM inorder to not overlap relocation
> with this region?
> 

I think I'll add this in a separate patch, I'm still not sure that is
the best solution to avoid relocation overlap just yet.

Thanks,
Andrew

> Thanks and regards,
> Lokesh
> 
>> +CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE=0x02000000
>> +CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE=0x01c00000
>>  CONFIG_TARGET_AM43XX_EVM=y
>>  CONFIG_ISW_ENTRY_ADDR=0x403018e0
>>  CONFIG_SPL_STACK_R_ADDR=0x82000000
>>

[U-Boot] [PATCH 6/6] board: ti: am43xx: Add FDT fixup for HS devices

[Andrew F. Davis]

Disable RNG and add TEE to FDT used on HS devices.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 board/ti/am43xx/board.c         | 9 +++++++++
 configs/am43xx_hs_evm_defconfig | 1 +
 2 files changed, 10 insertions(+)

diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index 96032215a6..933596d59c 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -838,6 +838,15 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	ft_cpu_setup(blob, bd);
+
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SPL_LOAD_FIT
 int board_fit_config_name_match(const char *name)
 {
diff --git a/configs/am43xx_hs_evm_defconfig b/configs/am43xx_hs_evm_defconfig
index 37d8e484db..699d4cc0de 100644
--- a/configs/am43xx_hs_evm_defconfig
+++ b/configs/am43xx_hs_evm_defconfig
@@ -12,6 +12,7 @@ CONFIG_ISW_ENTRY_ADDR=0x403018e0
 CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"
 CONFIG_FIT_IMAGE_POST_PROCESS=y
+CONFIG_OF_BOARD_SETUP=y
 CONFIG_SPL_LOAD_FIT=y
 CONFIG_SPL_FIT_IMAGE_POST_PROCESS=y
 CONFIG_SYS_EXTRA_OPTIONS="CONS_INDEX=1,NAND"
-- 
2.13.0

[U-Boot] [PATCH 6/6] board: ti: am43xx: Add FDT fixup for HS devices

[Lokesh Vutla]

On Saturday 17 June 2017 12:57 AM, Andrew F. Davis wrote:
> Disable RNG and add TEE to FDT used on HS devices.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

Thanks and regards,
Lokesh

[U-Boot] [PATCH 6/6] board: ti: am43xx: Add FDT fixup for HS devices

[Tom Rini]

On Fri, Jun 16, 2017 at 02:27:01PM -0500, Andrew F. Davis wrote:

> Disable RNG and add TEE to FDT used on HS devices.
> 
> Signed-off-by: Andrew F. Davis <afd@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

-- 
Tom
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