arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-14 03:30:02 +00:00
Code Issues Releases Wiki Activity

bootloader: refactor mpu settings

Browse Source
This commit is contained in:
Pavol Rusnak 2019-02-21 19:39:50 +01:00
parent 3055633d84
commit 5d645ef61b
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
2 changed files with 37 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
embed/bootloader/main.c
View File

@ -225,17 +225,18 @@ static void check_bootloader_version(void)
int main(void)
{
mpu_config_bootloader();
touch_init();
touch_power_on();
main_start:
display_clear();
mpu_config_bootloader();
#if PRODUCTION
check_bootloader_version();
#endif
touch_init();
touch_power_on();
main_start:
display_clear();
// delay to detect touch
uint32_t touched = 0;

48
embed/trezorhal/mpu.c
View File

@ -40,30 +40,36 @@ void mpu_config_bootloader(void)
// Note: later entries overwrite previous ones
// Flash (0x08000000 - 0x081FFFFF, 2 MiB, read-write)
MPU->RBAR = FLASH_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER0;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_2MB | LL_MPU_REGION_PRIV_RO_URO;
// Everything (0x00000000 - 0xFFFFFFFF, 4 GiB, read-write)
MPU->RNR = MPU_REGION_NUMBER0;
MPU->RBAR = 0;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_4GB | LL_MPU_REGION_FULL_ACCESS;
// Flash (0x0800C000 - 0x0800FFFF, 16 KiB, no access)
MPU->RBAR = FLASH_BASE | 0xC000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER1;
MPU->RNR = MPU_REGION_NUMBER1;
MPU->RBAR = FLASH_BASE + 0xC000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_16KB | LL_MPU_REGION_NO_ACCESS;
// Flash (0x0810C000 - 0x0810FFFF, 16 KiB, no access)
MPU->RBAR = FLASH_BASE | 0x10C000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER2;
MPU->RNR = MPU_REGION_NUMBER2;
MPU->RBAR = FLASH_BASE + 0x10C000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_16KB | LL_MPU_REGION_NO_ACCESS;
// SRAM (0x20000000 - 0x2002FFFF, 192 KiB = 256 KiB except 2/8 at end, read-write, execute never)
MPU->RBAR = SRAM_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER3;
MPU->RNR = MPU_REGION_NUMBER3;
MPU->RBAR = SRAM_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_SRAM | LL_MPU_REGION_SIZE_256KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk | MPU_SUBREGION_DISABLE(0xC0);
// Peripherals (0x40000000 - 0x5FFFFFFF, read-write, execute never)
// External RAM (0x60000000 - 0x7FFFFFFF, read-write, execute never)
MPU->RBAR = PERIPH_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER4;
MPU->RNR = MPU_REGION_NUMBER4;
MPU->RBAR = PERIPH_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_PERIPH | LL_MPU_REGION_SIZE_1GB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
#ifdef STM32F427xx
// CCMRAM (0x10000000 - 0x1000FFFF, read-write, execute never)
MPU->RBAR = CCMDATARAM_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER5;
MPU->RNR = MPU_REGION_NUMBER5;
MPU->RBAR = CCMDATARAM_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_SRAM | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
#elif STM32F405xx
// no CCMRAM
@ -85,41 +91,49 @@ void mpu_config_firmware(void)
/*
// Boardloader (0x08000000 - 0x0800FFFF, 64 KiB, read-only, execute never)
MPU->RBAR = FLASH_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER0;
MPU->RBAR = FLASH_BASE | MPU_REGION_NUMBER0;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_PRIV_RO_URO | MPU_RASR_XN_Msk;
*/
// Bootloader (0x08020000 - 0x0803FFFF, 64 KiB, read-only)
MPU->RBAR = FLASH_BASE | 0x20000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER0;
MPU->RNR = MPU_REGION_NUMBER0;
MPU->RBAR = FLASH_BASE + 0x20000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_PRIV_RO_URO;
// Storage#1 (0x08010000 - 0x0801FFFF, 64 KiB, read-write, execute never)
MPU->RBAR = FLASH_BASE | 0x10000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER1;
MPU->RNR = MPU_REGION_NUMBER1;
MPU->RBAR = FLASH_BASE + 0x10000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
// Storage#2 (0x08110000 - 0x0811FFFF, 64 KiB, read-write, execute never)
MPU->RBAR = FLASH_BASE | 0x110000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER2;
MPU->RNR = MPU_REGION_NUMBER2;
MPU->RBAR = FLASH_BASE + 0x110000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
// Firmware (0x08040000 - 0x080FFFFF, 6 * 128 KiB = 1024 KiB except 2/8 at start = 768 KiB, read-only)
MPU->RBAR = FLASH_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER3;
MPU->RNR = MPU_REGION_NUMBER3;
MPU->RBAR = FLASH_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_1MB | LL_MPU_REGION_PRIV_RO_URO | MPU_SUBREGION_DISABLE(0x03);
// Firmware extra (0x08120000 - 0x081FFFFF, 7 * 128 KiB = 1024 KiB except 1/8 at start = 896 KiB, read-only)
MPU->RBAR = FLASH_BASE | 0x100000 | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER4;
MPU->RNR = MPU_REGION_NUMBER4;
MPU->RBAR = FLASH_BASE + 0x100000;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_FLASH | LL_MPU_REGION_SIZE_1MB | LL_MPU_REGION_PRIV_RO_URO | MPU_SUBREGION_DISABLE(0x01);
// SRAM (0x20000000 - 0x2002FFFF, 192 KiB = 256 KiB except 2/8 at end, read-write, execute never)
MPU->RBAR = SRAM_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER5;
MPU->RNR = MPU_REGION_NUMBER5;
MPU->RBAR = SRAM_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_SRAM | LL_MPU_REGION_SIZE_256KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk | MPU_SUBREGION_DISABLE(0xC0);
// Peripherals (0x40000000 - 0x5FFFFFFF, read-write, execute never)
// External RAM (0x60000000 - 0x7FFFFFFF, read-write, execute never)
MPU->RBAR = PERIPH_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER6;
MPU->RNR = MPU_REGION_NUMBER6;
MPU->RBAR = PERIPH_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_PERIPH | LL_MPU_REGION_SIZE_1GB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
#ifdef STM32F427xx
// CCMRAM (0x10000000 - 0x1000FFFF, read-write, execute never)
MPU->RBAR = CCMDATARAM_BASE | MPU_RBAR_VALID_Msk | MPU_REGION_NUMBER7;
MPU->RNR = MPU_REGION_NUMBER7;
MPU->RBAR = CCMDATARAM_BASE;
MPU->RASR = MPU_RASR_ENABLE_Msk | MPU_RASR_ATTR_SRAM | LL_MPU_REGION_SIZE_64KB | LL_MPU_REGION_FULL_ACCESS | MPU_RASR_XN_Msk;
#elif STM32F405xx
// no CCMRAM