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Ensure ram is on

This commit is contained in:
Stephane D'Alu 2016-02-16 18:33:49 +01:00
parent 1548bca80f
commit d95b09804c
1 changed files with 12 additions and 0 deletions
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12
os/hal/boards/NRF51-DK/board.c
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@ -1,5 +1,6 @@
/* /*
Copyright (C) 2015 Fabio Utzig Copyright (C) 2015 Fabio Utzig
2016 Stéphane D'Alu / Bruno Remond
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
@ -17,6 +18,14 @@
#include "hal.h" #include "hal.h"
#if HAL_USE_PAL || defined(__DOXYGEN__) #if HAL_USE_PAL || defined(__DOXYGEN__)
/* RAM Banks
* (Values are defined in Nordic gcc_startup_nrf51.s)
*/
#define NRF_POWER_RAMON_ADDRESS 0x40000524
#define NRF_POWER_RAMONB_ADDRESS 0x40000554
#define NRF_POWER_RAMONx_RAMxON_ONMODE_Msk 0x3
/** /**
* @brief PAL setup. * @brief PAL setup.
* @details Digital I/O ports static configuration as defined in @p board.h. * @details Digital I/O ports static configuration as defined in @p board.h.
@ -68,6 +77,9 @@ const PALConfig pal_default_config =
*/ */
void __early_init(void) void __early_init(void)
{ {
/* Make sure ALL RAM banks are powered on */
*(uint32_t *)NRF_POWER_RAMON_ADDRESS |= NRF_POWER_RAMONx_RAMxON_ONMODE_Msk;
*(uint32_t *)NRF_POWER_RAMONB_ADDRESS |= NRF_POWER_RAMONx_RAMxON_ONMODE_Msk;
} }
/** /**