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ChibiOS
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Mapped the sdmmc memory region as non secure. 

Allowed the non secure use of the FPU.


git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11928 110e8d01-0319-4d1e-a829-52ad28d1bb01
This commit is contained in:
isiora 2018-04-13 13:47:00 +00:00
parent 8f105857d9
commit b53e3fbf22
1 changed files with 34 additions and 4 deletions
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38
os/common/ports/ARMCAx-TZ/chtssi.c
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@ -24,8 +24,14 @@
#include "ch.h"
#include "hal.h"
#include "tsconf.h"
#include "chtssi.h"
#include "ARMCA5.h"
#if defined(__GNUC__) || defined(__DOXYGEN__)
#include "cmsis_gcc.h"
#else
#include "cmsis_armcc.h"
#endif
#include "ccportab.h"
#include <string.h>
/*===========================================================================*/
@ -262,10 +268,11 @@ CC_NO_RETURN void tssiInit(void)
uint32_t *tt;
/*
* The DDR memory is divided in 4 region, each 32MB large.
* The main DDR memory, PORT0, is divided in 4 region, each 32MB large.
* The last region is split in two areas, each 16MB large.
* The first 3 region and the lower area of this last region is non secure.
* All the rest of the regions space is secured.
* The same applies to AESB view of the DDR, PORT1
*
* Those settings depend on the designed memory mapping.
*/
@ -304,6 +311,19 @@ CC_NO_RETURN void tssiInit(void)
mtxRegionWrnsech(REGION_1, NOT_SECURE_WRITE) |
mtxRegionWrnsech(REGION_2, NOT_SECURE_WRITE));
#if !HAL_USE_SDMMC
/* Configure the SDMMCx regions as non secure.*/
mtxSetSlaveSplitAddr(MATRIX0, H64MX_SLAVE_SDMMC, MATRIX_AREA_SIZE_128M, REGION_1_MSK|REGION_2_MSK);
mtxConfigSlaveSec(MATRIX0, H64MX_SLAVE_SDMMC,
mtxRegionLansech(REGION_1, UPPER_AREA_SECURABLE) |
mtxRegionLansech(REGION_2, UPPER_AREA_SECURABLE),
mtxRegionRdnsech(REGION_1, NOT_SECURE_READ) |
mtxRegionRdnsech(REGION_2, NOT_SECURE_READ),
mtxRegionWrnsech(REGION_1, NOT_SECURE_WRITE) |
mtxRegionWrnsech(REGION_2, NOT_SECURE_WRITE));
#endif
/* Mark the whole non secure memory region as non executable
by the secure side.*/
tt = (uint32_t *)(__get_TTBR0() & 0xFFFFC000);
@ -343,9 +363,19 @@ CC_NO_RETURN void tssiInit(void)
/* Now set the priority to the max.*/
chThdSetPriority(HIGHPRIO);
/* Remove write protection on PMC registers.*/
pmcDisableWP();
/* Allow non secure access to CP10 and CP11.*/
asm volatile (
"MRC p15, 0, r0, c1, c1, 2 \n"
"ORR r0, r0, #0b11<<10 \n"
"MCR p15, 0, r0, c1, c1, 2 \n"
);
/* Jump in the NON SECURE world.
* This thread becomes the non secure environment as view by
* the secure world.*/
This thread becomes the non secure environment as view by
the secure world.*/
_ns_trampoline(NSEC_MEMORY_START_ADDR + NSEC_MEMORY_EXE_OFFSET);
/* It never goes here.*/