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bsp/atsam: Support QSPI flash

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This commit is contained in:
Alexander Krutwig
2016-06-06 12:57:08 +02:00
committed by Sebastian Huber
parent 15f0f9b448
commit 033443c869
7 changed files with 65 additions and 5 deletions
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c/src/lib/libbsp/arm/atsam/Makefile.am
+1
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@@ -18,6 +18,7 @@ project_lib_DATA += startup/linkcmds
project_lib_DATA += startup/linkcmds.memory
project_lib_DATA += startup/linkcmds.intsram
project_lib_DATA += startup/linkcmds.sdram
project_lib_DATA += startup/linkcmds.qspiflash
###############################################################################
# Header #
c/src/lib/libbsp/arm/atsam/README
+3
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@@ -41,6 +41,9 @@ Use ATSAM_MEMORY_INTSRAM_SIZE=XYZ to set the size of internal SRAM in bytes
Use ATSAM_MEMORY_SDRAM_SIZE=XYZ to set the size of external SDRAM in bytes
(default 0x00200000).
Use ATSAM_MEMORY_QSPIFLASH_SIZE=XYZ to set the size of QSPI flash in bytes
(default 0x00200000).
The pins may be configured by the application at link-time. See
<bsp/pin-config.h>.
c/src/lib/libbsp/arm/atsam/configure.ac
+1
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@@ -77,6 +77,7 @@ ATSAM_LINKCMD([ATSAM_MEMORY_TCM_SIZE],[size of tightly coupled memories (TCM) in
ATSAM_LINKCMD([ATSAM_MEMORY_INTFLASH_SIZE],[size of internal flash in bytes],[${INTFLASH}])
ATSAM_LINKCMD([ATSAM_MEMORY_INTSRAM_SIZE],[size of internal SRAM in bytes],[${INTSRAM}])
ATSAM_LINKCMD([ATSAM_MEMORY_SDRAM_SIZE],[size of external SDRAM in bytes],[0x00200000])
ATSAM_LINKCMD([ATSAM_MEMORY_QSPIFLASH_SIZE],[size of QSPI flash in bytes],[0x00200000])
AC_CONFIG_FILES([
Makefile
c/src/lib/libbsp/arm/atsam/libraries/libchip/source/qspi.c
+34 -5
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@@ -211,6 +211,35 @@ __STATIC_INLINE void QSPI_ScrambleData(Qspi *pQspi, uint32_t wKey,
pQspi->QSPI_SMR = (EnableFlag | (Random << 1));
}
static void do_copy(uint8_t *dst, const uint8_t *src, size_t n, bool aligned)
{
if (aligned) {
while (n > 3) {
*(uint32_t *)dst = *(uint32_t *)src;
dst += 4;
src += 4;
n -= 4;
}
}
while (n > 0) {
*dst = *src;
++dst;
++src;
--n;
}
}
static void copy_to_io(void *dst, const void *src, size_t n)
{
do_copy(dst, src, n, ((uintptr_t)dst) % 4 == 0);
}
static void copy_from_io(void *dst, const void *src, size_t n)
{
do_copy(dst, src, n, ((uintptr_t)src) % 4 == 0);
}
/*----------------------------------------------------------------------------
* Exported functions
*----------------------------------------------------------------------------*/
@@ -721,11 +750,11 @@ QspidStatus_t QSPI_ReadWriteMem(Qspid_t *pQspid, Access_t const ReadWrite)
assert(((ReadWrite > CmdAccess)
&& (ReadWrite <= WriteAccess)) ? true : false);
if (ReadWrite == WriteAccess)
memcpy(pQspiMem, pBuffer.pDataTx , pBuffer.TxDataSize);
else
memcpy(pBuffer.pDataRx, pQspiMem, pBuffer.RxDataSize);
if (ReadWrite == WriteAccess) {
copy_to_io(pQspiMem, pBuffer.pDataTx , pBuffer.TxDataSize);
} else {
copy_from_io(pBuffer.pDataRx, pQspiMem, pBuffer.RxDataSize);
}
memory_sync();
QSPI_EndTransfer(pQspid->pQspiHw);
c/src/lib/libbsp/arm/atsam/preinstall.am
+4
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@@ -52,6 +52,10 @@ $(PROJECT_LIB)/linkcmds.sdram: startup/linkcmds.sdram $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.sdram
TMPINSTALL_FILES += $(PROJECT_LIB)/linkcmds.sdram
$(PROJECT_LIB)/linkcmds.qspiflash: startup/linkcmds.qspiflash $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.qspiflash
TMPINSTALL_FILES += $(PROJECT_LIB)/linkcmds.qspiflash
$(PROJECT_INCLUDE)/tm27.h: ../../shared/include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
c/src/lib/libbsp/arm/atsam/startup/linkcmds.memory.in
+1
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@@ -5,4 +5,5 @@ MEMORY {
INTSRAM : ORIGIN = 0x20400000, LENGTH = @ATSAM_MEMORY_INTSRAM_SIZE@ - 2 * @ATSAM_MEMORY_TCM_SIZE@ - 4K
NOCACHE : ORIGIN = 0x20400000 + @ATSAM_MEMORY_INTSRAM_SIZE@ - 2 * @ATSAM_MEMORY_TCM_SIZE@ - 4K, LENGTH = 4K
SDRAM : ORIGIN = 0x70000000, LENGTH = @ATSAM_MEMORY_SDRAM_SIZE@
QSPIFLASH : ORIGIN = 0x80000000, LENGTH = @ATSAM_MEMORY_QSPIFLASH_SIZE@
}
c/src/lib/libbsp/arm/atsam/startup/linkcmds.qspiflash
+21
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@@ -0,0 +1,21 @@
INCLUDE linkcmds.memory
REGION_ALIAS ("REGION_START", QSPIFLASH);
REGION_ALIAS ("REGION_VECTOR", INTSRAM);
REGION_ALIAS ("REGION_TEXT", QSPIFLASH);
REGION_ALIAS ("REGION_TEXT_LOAD", QSPIFLASH);
REGION_ALIAS ("REGION_RODATA", QSPIFLASH);
REGION_ALIAS ("REGION_RODATA_LOAD", QSPIFLASH);
REGION_ALIAS ("REGION_DATA", INTSRAM);
REGION_ALIAS ("REGION_DATA_LOAD", QSPIFLASH);
REGION_ALIAS ("REGION_FAST_TEXT", ITCM);
REGION_ALIAS ("REGION_FAST_TEXT_LOAD", QSPIFLASH);
REGION_ALIAS ("REGION_FAST_DATA", DTCM);
REGION_ALIAS ("REGION_FAST_DATA_LOAD", QSPIFLASH);
REGION_ALIAS ("REGION_BSS", INTSRAM);
REGION_ALIAS ("REGION_WORK", INTSRAM);
REGION_ALIAS ("REGION_STACK", INTSRAM);
REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
REGION_ALIAS ("REGION_NOCACHE_LOAD", QSPIFLASH);
INCLUDE linkcmds.armv7m