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Merge pull request #184 from jcastillo-arm/jc/tf-issues/100 

FVP: make usage of Trusted DRAM optional at build time
This commit is contained in:
danh-arm 2014-08-14 09:52:22 +01:00
parent 233020911d 186c1d4b26
commit f0e240d7f5
14 changed files with 221 additions and 118 deletions
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4
bl1/bl1.ld.S
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@ -35,8 +35,8 @@ OUTPUT_ARCH(PLATFORM_LINKER_ARCH)
ENTRY(bl1_entrypoint)
MEMORY {
ROM (rx): ORIGIN = TZROM_BASE, LENGTH = TZROM_SIZE
RAM (rwx): ORIGIN = TZRAM_BASE, LENGTH = TZRAM_SIZE
ROM (rx): ORIGIN = BL1_RO_BASE, LENGTH = BL1_RO_LIMIT
RAM (rwx): ORIGIN = BL1_RW_BASE, LENGTH = BL1_RW_LIMIT
}
SECTIONS

2
bl2/bl2.ld.S
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@ -35,7 +35,7 @@ OUTPUT_ARCH(PLATFORM_LINKER_ARCH)
ENTRY(bl2_entrypoint)
MEMORY {
RAM (rwx): ORIGIN = TZRAM_BASE, LENGTH = TZRAM_SIZE
RAM (rwx): ORIGIN = BL2_BASE, LENGTH = BL2_LIMIT
}

2
bl31/bl31.ld.S
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@ -36,7 +36,7 @@ ENTRY(bl31_entrypoint)
MEMORY {
RAM (rwx): ORIGIN = TZRAM_BASE, LENGTH = TZRAM_SIZE
RAM (rwx): ORIGIN = BL31_BASE, LENGTH = BL31_LIMIT
}

87
docs/firmware-design.md
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@ -955,22 +955,95 @@ PROGBITS sections then the resulting binary file would contain a bunch of zero
bytes at the location of this NOBITS section, making the image unnecessarily
bigger. Smaller images allow faster loading from the FIP to the main memory.
On FVP platforms, we use the Trusted ROM and Trusted SRAM to store the trusted
firmware binaries.
On FVP platforms, we use the Trusted ROM, Trusted SRAM and, optionally, Trusted
DRAM to store the trusted firmware binaries and shared data.
* A 4KB page of shared memory is used to store the entrypoint mailboxes
and the parameters passed between bootloaders. The shared memory can be
allocated either at the top of Trusted SRAM or at the base of Trusted
DRAM at build time. When allocated in Trusted SRAM, the amount of Trusted
SRAM available to load the bootloader images will be reduced by the size
of the shared memory.
* BL1 is originally sitting in the Trusted ROM at address `0x0`. Its
read-write data are relocated at the top of the Trusted SRAM at runtime.
If the shared memory is allocated in Trusted SRAM, the BL1 read-write data
is relocated just below the shared memory.
* BL3-1 is loaded at the top of the Trusted SRAM, such that its NOBITS
sections will overwrite BL1 R/W data.
* BL2 is loaded below BL3-1.
* The TSP is loaded as the BL3-2 image at the base of the Trusted SRAM. Its
NOBITS sections are allowed to overlay BL2.
* The TSP is loaded as the BL3-2 image at the base of either the Trusted
SRAM or Trusted DRAM. When loaded into Trusted SRAM, its NOBITS sections
are allowed to overlay BL2. When loaded into Trusted DRAM, an offset
corresponding to the size of the shared memory is applied to avoid
overlap.
This memory layout is designed to give the BL3-2 image as much memory as
possible. It is illustrated by the following diagram.
possible when it is loaded into Trusted SRAM. Depending on the location of the
shared memory page and the TSP, it will result in different memory maps,
illustrated by the following diagrams.
** Shared data & TSP in Trusted SRAM (default option): **
Trusted SRAM
0x04040000 +----------+
| Shared |
0x0403F000 +----------+ loaded by BL2 ------------------
| BL1 (rw) | <<<<<<<<<<<<< | BL3-1 NOBITS |
|----------| <<<<<<<<<<<<< |----------------|
| | <<<<<<<<<<<<< | BL3-1 PROGBITS |
|----------| ------------------
| BL2 | <<<<<<<<<<<<< | BL3-2 NOBITS |
|----------| <<<<<<<<<<<<< |----------------|
| | <<<<<<<<<<<<< | BL3-2 PROGBITS |
0x04000000 +----------+ ------------------
Trusted ROM
0x04000000 +----------+
| BL1 (ro) |
0x00000000 +----------+
** Shared data & TSP in Trusted DRAM: **
Trusted DRAM
0x08000000 +----------+
| |
| BL3-2 |
| |
0x06001000 |----------|
| Shared |
0x06000000 +----------+
Trusted SRAM
0x04040000 +----------+ loaded by BL2 ------------------
| BL1 (rw) | <<<<<<<<<<<<< | BL3-1 NOBITS |
|----------| <<<<<<<<<<<<< |----------------|
| | <<<<<<<<<<<<< | BL3-1 PROGBITS |
|----------| ------------------
| BL2 |
|----------|
| |
0x04000000 +----------+
Trusted ROM
0x04000000 +----------+
| BL1 (ro) |
0x00000000 +----------+
** Shared data in Trusted DRAM, TSP in Trusted SRAM: **
Trusted DRAM
0x08000000 +----------+
| |
| |
| |
0x06001000 |----------|
| Shared |
0x06000000 +----------+
Trusted SRAM
0x04040000 +----------+ loaded by BL2 ------------------
@ -988,8 +1061,8 @@ possible. It is illustrated by the following diagram.
| BL1 (ro) |
0x00000000 +----------+
The TSP image may be loaded in Trusted DRAM instead. This doesn't change the
memory layout of the other boot loader images in Trusted SRAM.
Loading the TSP image in Trusted DRAM doesn't change the memory layout of the
other boot loader images in Trusted SRAM.
Each bootloader stage image layout is described by its own linker script. The
linker scripts export some symbols into the program symbol table. Their values

25
docs/porting-guide.md
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@ -150,31 +150,6 @@ file is found in [plat/fvp/include/platform_def.h].
Defines the total number of nodes in the affinity heirarchy at all affinity
levels used by the platform.
* **#define : TZROM_BASE**
Defines the base address of secure ROM on the platform, where the BL1 binary
is loaded. This constant is used by the linker scripts to ensure that the
BL1 image fits into the available memory.
* **#define : TZROM_SIZE**
Defines the size of secure ROM on the platform. This constant is used by the
linker scripts to ensure that the BL1 image fits into the available memory.
* **#define : TZRAM_BASE**
Defines the base address of the secure RAM on platform, where the data
section of the BL1 binary is loaded. The BL2 and BL3-1 images are also
loaded in this secure RAM region. This constant is used by the linker
scripts to ensure that the BL1 data section and BL2/BL3-1 binary images fit
into the available memory.
* **#define : TZRAM_SIZE**
Defines the size of the secure RAM on the platform. This constant is used by
the linker scripts to ensure that the BL1 data section and BL2/BL3-1 binary
images fit into the available memory.
* **#define : BL1_RO_BASE**
Defines the base address in secure ROM where BL1 originally lives. Must be

19
docs/user-guide.md
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@ -133,6 +133,8 @@ the build system doesn't track dependency for build options. Therefore, if any
of the build options are changed from a previous build, a clean build must be
performed.
#### Common build options
* `BL30`: Path to BL3-0 image in the host file system. This image is optional.
If a BL3-0 image is present then this option must be passed for the `fip`
target
@ -205,6 +207,19 @@ performed.
synchronous method) or 1 (BL3-2 is initialized using asynchronous method).
Default is 0.
#### FVP specific build options
* `FVP_SHARED_DATA_LOCATION`: location of the shared memory page. Available
options:
- 'tsram' (default) : top of Trusted SRAM
- 'tdram' : base of Trusted DRAM
* `FVP_TSP_RAM_LOCATION`: location of the TSP binary. Options:
- 'tsram' (default) : base of Trusted SRAM
- 'tdram' : Trusted DRAM (above shared data)
For a better understanding of FVP options, the FVP memory map is detailed in
[Firmware Design].
### Creating a Firmware Image Package
@ -327,11 +342,11 @@ The Firmware Package contains this new image:
On FVP, the TSP binary runs from Trusted SRAM by default. It is also possible
to run it from Trusted DRAM. This is controlled by the build configuration
`TSP_RAM_LOCATION`:
`FVP_TSP_RAM_LOCATION`:
CROSS_COMPILE=<path-to-aarch64-gcc>/bin/aarch64-none-elf- \
BL33=<path-to>/<bl33_image> \
make PLAT=fvp SPD=tspd TSP_RAM_LOCATION=tdram all fip
make PLAT=fvp SPD=tspd FVP_TSP_RAM_LOCATION=tdram all fip
### Checking source code style

6
plat/fvp/aarch64/fvp_common.c
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@ -56,9 +56,9 @@ plat_config_t plat_config;
* configure_mmu_elx() will give the available subset of that,
*/
const mmap_region_t fvp_mmap[] = {
{ TZROM_BASE, TZROM_BASE, TZROM_SIZE,
MT_MEMORY | MT_RO | MT_SECURE },
{ TZDRAM_BASE, TZDRAM_BASE, TZDRAM_SIZE,
{ FVP_SHARED_RAM_BASE, FVP_SHARED_RAM_BASE, FVP_SHARED_RAM_SIZE,
MT_MEMORY | MT_RW | MT_SECURE },
{ FVP_TRUSTED_DRAM_BASE, FVP_TRUSTED_DRAM_BASE, FVP_TRUSTED_DRAM_SIZE,
MT_MEMORY | MT_RW | MT_SECURE },
{ FLASH0_BASE, FLASH0_BASE, FLASH0_SIZE,
MT_MEMORY | MT_RO | MT_SECURE },

10
plat/fvp/aarch64/fvp_helpers.S
View File

@ -34,7 +34,7 @@
#include <gic_v2.h>
#include <pl011.h>
#include "../drivers/pwrc/fvp_pwrc.h"
#include "../fvp_def.h"
#include "platform_def.h"
.globl platform_get_entrypoint
.globl plat_secondary_cold_boot_setup
@ -140,7 +140,7 @@ warm_reset:
* its safe to read it here with SO attributes
* ---------------------------------------------
*/
ldr x10, =TZDRAM_BASE + MBOX_OFF
ldr x10, =MBOX_BASE
bl platform_get_core_pos
lsl x0, x0, #CACHE_WRITEBACK_SHIFT
ldr x0, [x10, x0]
@ -153,8 +153,8 @@ _panic: b _panic
/* -----------------------------------------------------
* void platform_mem_init (void);
*
* Zero out the mailbox registers in the TZDRAM. The
* mmu is turned off right now and only the primary can
* Zero out the mailbox registers in the shared memory.
* The mmu is turned off right now and only the primary can
* ever execute this code. Secondaries will read the
* mailboxes using SO accesses. In short, BL31 will
* update the mailboxes after mapping the tzdram as
@ -163,7 +163,7 @@ _panic: b _panic
* -----------------------------------------------------
*/
func platform_mem_init
ldr x0, =TZDRAM_BASE + MBOX_OFF
ldr x0, =MBOX_BASE
mov w1, #PLATFORM_CORE_COUNT
loop:
str xzr, [x0], #CACHE_WRITEBACK_GRANULE

12
plat/fvp/bl1_fvp_setup.c
View File

@ -76,12 +76,12 @@ void bl1_early_platform_setup(void)
console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
/* Allow BL1 to see the whole Trusted RAM */
bl1_tzram_layout.total_base = TZRAM_BASE;
bl1_tzram_layout.total_size = TZRAM_SIZE;
bl1_tzram_layout.total_base = FVP_TRUSTED_SRAM_BASE;
bl1_tzram_layout.total_size = FVP_TRUSTED_SRAM_SIZE;
/* Calculate how much RAM BL1 is using and how much remains free */
bl1_tzram_layout.free_base = TZRAM_BASE;
bl1_tzram_layout.free_size = TZRAM_SIZE;
bl1_tzram_layout.free_base = FVP_TRUSTED_SRAM_BASE;
bl1_tzram_layout.free_size = FVP_TRUSTED_SRAM_SIZE;
reserve_mem(&bl1_tzram_layout.free_base,
&bl1_tzram_layout.free_size,
BL1_RAM_BASE,
@ -114,8 +114,8 @@ void bl1_plat_arch_setup(void)
fvp_configure_mmu_el3(bl1_tzram_layout.total_base,
bl1_tzram_layout.total_size,
TZROM_BASE,
TZROM_BASE + TZROM_SIZE,
BL1_RO_BASE,
BL1_RO_LIMIT,
BL1_COHERENT_RAM_BASE,
BL1_COHERENT_RAM_LIMIT);
}

13
plat/fvp/bl2_fvp_setup.c
View File

@ -72,6 +72,11 @@ static meminfo_t bl2_tzram_layout
__attribute__ ((aligned(PLATFORM_CACHE_LINE_SIZE),
section("tzfw_coherent_mem")));
/* Assert that BL3-1 parameters fit in shared memory */
CASSERT((PARAMS_BASE + sizeof(bl2_to_bl31_params_mem_t)) <
(FVP_SHARED_RAM_BASE + FVP_SHARED_RAM_SIZE),
assert_bl31_params_do_not_fit_in_shared_memory);
/*******************************************************************************
* Reference to structures which holds the arguments which need to be passed
* to BL31
@ -97,14 +102,6 @@ bl31_params_t *bl2_plat_get_bl31_params(void)
{
bl2_to_bl31_params_mem_t *bl31_params_mem;
#if TSP_RAM_LOCATION_ID == TSP_IN_TZDRAM
/*
* Ensure that the secure DRAM memory used for passing BL31 arguments
* does not overlap with the BL32_BASE.
*/
assert(BL32_BASE > PARAMS_BASE + sizeof(bl2_to_bl31_params_mem_t));
#endif
/*
* Allocate the memory for all the arguments that needs to
* be passed to BL31

53
plat/fvp/fvp_def.h
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@ -1,4 +1,4 @@
#/*
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -31,19 +31,29 @@
#ifndef __FVP_DEF_H__
#define __FVP_DEF_H__
#include <platform_def.h> /* for TZROM_SIZE */
/* Firmware Image Package */
#define FIP_IMAGE_NAME "fip.bin"
#define FVP_PRIMARY_CPU 0x0
/* Memory location options for Shared data and TSP in FVP */
#define FVP_IN_TRUSTED_SRAM 0
#define FVP_IN_TRUSTED_DRAM 1
/*******************************************************************************
* FVP memory map related constants
******************************************************************************/
#define FVP_TRUSTED_ROM_BASE 0x00000000
#define FVP_TRUSTED_ROM_SIZE 0x04000000 /* 64 MB */
#define FVP_TRUSTED_SRAM_BASE 0x04000000
#define FVP_TRUSTED_SRAM_SIZE 0x00040000 /* 256 KB */
#define FVP_TRUSTED_DRAM_BASE 0x06000000
#define FVP_TRUSTED_DRAM_SIZE 0x02000000 /* 32 MB */
#define FLASH0_BASE 0x08000000
#define FLASH0_SIZE TZROM_SIZE
#define FLASH0_SIZE 0x04000000
#define FLASH1_BASE 0x0c000000
#define FLASH1_SIZE 0x04000000
@ -64,10 +74,27 @@
#define NSRAM_BASE 0x2e000000
#define NSRAM_SIZE 0x10000
#define MBOX_OFF 0x1000
/* 4KB shared memory */
#define FVP_SHARED_RAM_SIZE 0x1000
/* Base address where parameters to BL31 are stored */
#define PARAMS_BASE TZDRAM_BASE
/* Location of shared memory */
#if (FVP_SHARED_DATA_LOCATION_ID == FVP_IN_TRUSTED_DRAM)
/* Shared memory at the base of Trusted DRAM */
# define FVP_SHARED_RAM_BASE FVP_TRUSTED_DRAM_BASE
# define FVP_TRUSTED_SRAM_LIMIT (FVP_TRUSTED_SRAM_BASE \
+ FVP_TRUSTED_SRAM_SIZE)
#elif (FVP_SHARED_DATA_LOCATION_ID == FVP_IN_TRUSTED_SRAM)
# if (FVP_TSP_RAM_LOCATION_ID == FVP_IN_TRUSTED_DRAM)
# error "Shared data in Trusted SRAM and TSP in Trusted DRAM is not supported"
# endif
/* Shared memory at the top of the Trusted SRAM */
# define FVP_SHARED_RAM_BASE (FVP_TRUSTED_SRAM_BASE \
+ FVP_TRUSTED_SRAM_SIZE \
- FVP_SHARED_RAM_SIZE)
# define FVP_TRUSTED_SRAM_LIMIT FVP_SHARED_RAM_BASE
#else
# error "Unsupported FVP_SHARED_DATA_LOCATION_ID value"
#endif
#define DRAM1_BASE 0x80000000ull
#define DRAM1_SIZE 0x80000000ull
@ -229,5 +256,15 @@
#define FVP_NSAID_HDLCD0 2
#define FVP_NSAID_CLCD 7
/*******************************************************************************
* Shared Data
******************************************************************************/
/* Entrypoint mailboxes */
#define MBOX_BASE FVP_SHARED_RAM_BASE
#define MBOX_SIZE 0x200
/* Base address where parameters to BL31 are stored */
#define PARAMS_BASE (MBOX_BASE + MBOX_SIZE)
#endif /* __FVP_DEF_H__ */

6
plat/fvp/fvp_pm.c
View File

@ -103,7 +103,7 @@ int fvp_affinst_on(unsigned long mpidr,
} while (psysr & PSYSR_AFF_L0);
linear_id = platform_get_core_pos(mpidr);
fvp_mboxes = (mailbox_t *) (TZDRAM_BASE + MBOX_OFF);
fvp_mboxes = (mailbox_t *)MBOX_BASE;
fvp_mboxes[linear_id].value = sec_entrypoint;
flush_dcache_range((unsigned long) &fvp_mboxes[linear_id],
sizeof(unsigned long));
@ -240,7 +240,7 @@ int fvp_affinst_suspend(unsigned long mpidr,
/* Program the jump address for the target cpu */
linear_id = platform_get_core_pos(mpidr);
fvp_mboxes = (mailbox_t *) (TZDRAM_BASE + MBOX_OFF);
fvp_mboxes = (mailbox_t *)MBOX_BASE;
fvp_mboxes[linear_id].value = sec_entrypoint;
flush_dcache_range((unsigned long) &fvp_mboxes[linear_id],
sizeof(unsigned long));
@ -329,7 +329,7 @@ int fvp_affinst_on_finish(unsigned long mpidr,
fvp_pwrc_clr_wen(mpidr);
/* Zero the jump address in the mailbox for this cpu */
fvp_mboxes = (mailbox_t *) (TZDRAM_BASE + MBOX_OFF);
fvp_mboxes = (mailbox_t *)MBOX_BASE;
linear_id = platform_get_core_pos(mpidr);
fvp_mboxes[linear_id].value = 0;
flush_dcache_range((unsigned long) &fvp_mboxes[linear_id],

61
plat/fvp/include/platform_def.h
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@ -32,6 +32,7 @@
#define __PLATFORM_DEF_H__
#include <arch.h>
#include <../fvp_def.h>
/*******************************************************************************
@ -83,32 +84,21 @@
#define MAX_IO_DEVICES 3
#define MAX_IO_HANDLES 4
/*******************************************************************************
* Platform memory map related constants
******************************************************************************/
#define TZROM_BASE 0x00000000
#define TZROM_SIZE 0x04000000
#define TZRAM_BASE 0x04000000
#define TZRAM_SIZE 0x40000
/* Location of trusted dram on the base fvp */
#define TZDRAM_BASE 0x06000000
#define TZDRAM_SIZE 0x02000000
/*******************************************************************************
* BL1 specific defines.
* BL1 RW data is relocated from ROM to RAM at runtime so we need 2 sets of
* addresses.
******************************************************************************/
#define BL1_RO_BASE TZROM_BASE
#define BL1_RO_LIMIT (TZROM_BASE + TZROM_SIZE)
#define BL1_RO_BASE FVP_TRUSTED_ROM_BASE
#define BL1_RO_LIMIT (FVP_TRUSTED_ROM_BASE \
+ FVP_TRUSTED_ROM_SIZE)
/*
* Put BL1 RW at the top of the Trusted SRAM. BL1_RW_BASE is calculated using
* the current BL1 RW debug size plus a little space for growth.
* Put BL1 RW at the top of the Trusted SRAM (just below the shared memory, if
* present). BL1_RW_BASE is calculated using the current BL1 RW debug size plus
* a little space for growth.
*/
#define BL1_RW_BASE (TZRAM_BASE + TZRAM_SIZE - 0x6000)
#define BL1_RW_LIMIT (TZRAM_BASE + TZRAM_SIZE)
#define BL1_RW_BASE (FVP_TRUSTED_SRAM_LIMIT - 0x6000)
#define BL1_RW_LIMIT FVP_TRUSTED_SRAM_LIMIT
/*******************************************************************************
* BL2 specific defines.
@ -124,12 +114,13 @@
* BL31 specific defines.
******************************************************************************/
/*
* Put BL3-1 at the top of the Trusted SRAM. BL31_BASE is calculated using the
* current BL3-1 debug size plus a little space for growth.
* Put BL3-1 at the top of the Trusted SRAM (just below the shared memory, if
* present). BL31_BASE is calculated using the current BL3-1 debug size plus a
* little space for growth.
*/
#define BL31_BASE (TZRAM_BASE + TZRAM_SIZE - 0x1D000)
#define BL31_BASE (FVP_TRUSTED_SRAM_LIMIT - 0x1D000)
#define BL31_PROGBITS_LIMIT BL1_RW_BASE
#define BL31_LIMIT (TZRAM_BASE + TZRAM_SIZE)
#define BL31_LIMIT FVP_TRUSTED_SRAM_LIMIT
/*******************************************************************************
* BL32 specific defines.
@ -137,22 +128,20 @@
/*
* On FVP, the TSP can execute either from Trusted SRAM or Trusted DRAM.
*/
#define TSP_IN_TZRAM 0
#define TSP_IN_TZDRAM 1
#if TSP_RAM_LOCATION_ID == TSP_IN_TZRAM
# define TSP_SEC_MEM_BASE TZRAM_BASE
# define TSP_SEC_MEM_SIZE TZRAM_SIZE
# define BL32_BASE TZRAM_BASE
#if FVP_TSP_RAM_LOCATION_ID == FVP_IN_TRUSTED_SRAM
# define TSP_SEC_MEM_BASE FVP_TRUSTED_SRAM_BASE
# define TSP_SEC_MEM_SIZE FVP_TRUSTED_SRAM_SIZE
# define BL32_BASE FVP_TRUSTED_SRAM_BASE
# define BL32_PROGBITS_LIMIT BL2_BASE
# define BL32_LIMIT BL31_BASE
#elif TSP_RAM_LOCATION_ID == TSP_IN_TZDRAM
# define TSP_SEC_MEM_BASE TZDRAM_BASE
# define TSP_SEC_MEM_SIZE TZDRAM_SIZE
# define BL32_BASE (TZDRAM_BASE + 0x2000)
# define BL32_LIMIT (TZDRAM_BASE + (1 << 21))
#elif FVP_TSP_RAM_LOCATION_ID == FVP_IN_TRUSTED_DRAM
# define TSP_SEC_MEM_BASE FVP_TRUSTED_DRAM_BASE
# define TSP_SEC_MEM_SIZE FVP_TRUSTED_DRAM_SIZE
# define BL32_BASE (FVP_TRUSTED_DRAM_BASE \
+ FVP_SHARED_RAM_SIZE)
# define BL32_LIMIT (FVP_TRUSTED_DRAM_BASE + (1 << 21))
#else
# error "Unsupported TSP_RAM_LOCATION_ID value"
# error "Unsupported FVP_TSP_RAM_LOCATION_ID value"
#endif
/*******************************************************************************

39
plat/fvp/platform.mk
View File

@ -28,20 +28,37 @@
# POSSIBILITY OF SUCH DAMAGE.
#
# On FVP, the TSP can execute either from Trusted SRAM or Trusted DRAM.
# Trusted SRAM is the default.
TSP_RAM_LOCATION := tsram
ifeq (${TSP_RAM_LOCATION}, tsram)
TSP_RAM_LOCATION_ID := TSP_IN_TZRAM
else ifeq (${TSP_RAM_LOCATION}, tdram)
TSP_RAM_LOCATION_ID := TSP_IN_TZDRAM
# Shared memory may be allocated at the top of Trusted SRAM (tsram) or at the
# base of Trusted SRAM (tdram)
FVP_SHARED_DATA_LOCATION := tsram
ifeq (${FVP_SHARED_DATA_LOCATION}, tsram)
FVP_SHARED_DATA_LOCATION_ID := FVP_IN_TRUSTED_SRAM
else ifeq (${FVP_SHARED_DATA_LOCATION}, tdram)
FVP_SHARED_DATA_LOCATION_ID := FVP_IN_TRUSTED_DRAM
else
$(error "Unsupported TSP_RAM_LOCATION value")
$(error "Unsupported FVP_SHARED_DATA_LOCATION value")
endif
# Process TSP_RAM_LOCATION_ID flag
$(eval $(call add_define,TSP_RAM_LOCATION_ID))
# On FVP, the TSP can execute either from Trusted SRAM or Trusted DRAM.
# Trusted SRAM is the default.
FVP_TSP_RAM_LOCATION := tsram
ifeq (${FVP_TSP_RAM_LOCATION}, tsram)
FVP_TSP_RAM_LOCATION_ID := FVP_IN_TRUSTED_SRAM
else ifeq (${FVP_TSP_RAM_LOCATION}, tdram)
FVP_TSP_RAM_LOCATION_ID := FVP_IN_TRUSTED_DRAM
else
$(error "Unsupported FVP_TSP_RAM_LOCATION value")
endif
ifeq (${FVP_SHARED_DATA_LOCATION}, tsram)
ifeq (${FVP_TSP_RAM_LOCATION}, tdram)
$(error Shared data in Trusted SRAM and TSP in Trusted DRAM is not supported)
endif
endif
# Process flags
$(eval $(call add_define,FVP_SHARED_DATA_LOCATION_ID))
$(eval $(call add_define,FVP_TSP_RAM_LOCATION_ID))
PLAT_INCLUDES := -Iplat/fvp/include/