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Merge branch 'master' into feature/menuconfig_cpu_frequency_option

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* master: (57 commits)
  components/lwip: fix grammar
  components/lwip: make SO_REUSE configurable via menuconfig
  bootloader: remove trailing newlines from log messages
  components/freertos: override per-task __cleanup handler to close stdin, stdout, stderr
  components/esp32: move peripheral symbols to separate ld script
  components/log: regroup macros for better readability
  gitlab-ci: allow running tests for branches, triggered via API
  components/log: fix timestamp calculation
  components/log: set default runtime log level to ESP_LOG_VERBOSE
  components/log: fix error when using ESP_LOGx from C++ code
  components/log: fix bugs, add options to override log level for files, components, and bootloader
  fix ledc and spi typo
  remove prefix and postfix
  Enable SO_REUSEADDR in LWIP
  freertos: fix memory debug macro issue Define configENABLE_MEMORY_DEBUG according to CONFIG_ENABLE_MEMORY_DEBUG
  peripheral structure headers: move volatile keyword from members to typedef
  Adding -fstrict-volatile-bitfields to the CFLAGS/CXXFLAGS. Without this, gcc tries to access bitfields using the smallest possible methods (eg l8i to grab an 8-bit field from a 32-bit). Our hardware does not like that. This flag tells gcc that if a bitfield is volatile, it should always use the type the field is defined at (uint32_t in our case) to size its access to the field. This fixes accessing the hardware through the xxx_struct.h headers.
  add peripheral  module struct headers
  build system docs: Add note about no spaces in component names
  Docs: Add note about unusual submodule messages when cloning on Windows
  ...

# Conflicts:
#	components/esp32/cpu_start.c
#	components/esp32/include/soc/cpu.h
This commit is contained in:
Ivan Grokhotkov
2016-09-20 17:22:18 +08:00
parent b3e671e725 6e35c0a91a
commit da69d6ad3c
71 changed files with 6663 additions and 515 deletions
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35
components/esp32/include/soc/cpu.h
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@@ -33,6 +33,41 @@ static inline bool cpu_in_interrupt_context(void)
return (ps & PS_UM) == 0;
}
/* Functions to set page attributes for Region Protection option in the CPU.
* See Xtensa ISA Reference manual for explanation of arguments (section 4.6.3.2).
*/
static inline void cpu_write_dtlb(uint32_t vpn, unsigned attr)
{
asm volatile ("wdtlb %1, %0; dsync\n" :: "r" (vpn), "r" (attr));
}
static inline void cpu_write_itlb(unsigned vpn, unsigned attr)
{
asm volatile ("witlb %1, %0; isync\n" :: "r" (vpn), "r" (attr));
}
/* Make page 0 access raise an exception.
* Also protect some other unused pages so we can catch weirdness.
* Useful attribute values:
* 0 — cached, RW
* 2 — bypass cache, RWX (default value after CPU reset)
* 15 — no access, raise exception
*/
static inline void cpu_configure_region_protection()
{
const uint32_t pages_to_protect[] = {0x00000000, 0x80000000, 0xa0000000, 0xc0000000, 0xe0000000};
for (int i = 0; i < sizeof(pages_to_protect)/sizeof(pages_to_protect[0]); ++i) {
cpu_write_dtlb(pages_to_protect[i], 0xf);
cpu_write_itlb(pages_to_protect[i], 0xf);
}
cpu_write_dtlb(0x20000000, 0);
cpu_write_itlb(0x20000000, 0);
}
/*
* @brief Set CPU frequency to the value defined in menuconfig