PR #1450 broke the Cygwin build. Refer to Issue #1672.
The use of of logic like:
EXTRA_LIBPATHS += -L "${dir ${shell $(CC) $(ARCHCPUFLAGS) --print-file-name=libgcc.a}}"
fails when the Toolchain $(CC) is a native Windows toolchain. That is because the returned path is a Windows-style patch which cannot be handled by the make 'dir' command. Commit 4910d43ab0 reorganized a lot of definitions and replaced the correct code with the use of the limit make 'dir' command. The original code used the Bash dirname command which does not suffer from this limitation; it can handle both POSIX and Windows paths.
This was verified using the stm32f4discover:nsh toolchain with the Windows native ARM Embedded toolchain. That toolchain returns:
arm-none-eabi-gcc --print-file-name=libgcc.a
c:/program files (x86)/gnu tools arm embedded/9 2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/libgcc.a
Comments only. No functional changes. See STM32G474 Reference Manual
(RM0440 Rev 4), section 3.4.1, Table 11, "Option byte organization."
arch/arm/src/stm32/hardware/stm32g47xxx_memorymap.h:
* STM32_OPTION_BASE: The comment incorrectly said the range was
0x1fff7800-0x1fff780f for a total of 16 Option Bytes. Corrected
this to 0x1fff7800-0x1fff782f, as the device has 48 Option Bytes
for this option block.
* STM32_OPTION_BASE2: The comment incorrectly said the range was
0x1ffff800-0x1ffff80f for a total of 16 Option Bytes. Corrected
this to 0x1ffff800-0x1ffff82f, as the device has 48 Option Bytes
for this option block.
Summary:
- This commit improves SPI performance.
- For small data, it does not use DMA.
Impact:
- All use cases which use SPI with DMA
Testing:
- Tested with spresense:wifi and spresense:example_lcd
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
The pic32mx_usbpullup() and pic32mz_usbpullup() callbacks were referred to with various incorrect names in comments: pic32mx_pullup(), pic32mz_pullup(), stm32_pullup().
Master:
1. add DMA RX/TX support
2. add software chip selection
3. add user defined chip selection
4. add IOMUX check and IO map
Slave:
1. add DMA RX/TX support
2. add IOMUX check and IO map
3. use full 256 bit SPI TX/RX cache in non-DMA mode
Summary:
- This commit fixes IRQ control for the following use case
- The gs2200m Wi-Fi driver requests SPI-DMA to receive a packet.
- cxd56_dma.c enables IRQ for the SPI-DMA and start transfer.
- Then LCD driver requests SPI-DMA to display an image.
- These SPI-DMAs use different DMA channels but share the DMA controller.
- Also, they share the same IRQ.
- When the first SPI-DMA finishes the transfer, it disables the IRQ.
- And if the second SPI-DMA finishes the transfer just after the IRQ disabled.
- The second SPI-DMA will be in a deadlock condition.
- To resolve this issue, do not control IRQ during DMA transfer.
- Instead, up_enable_irq() is called in up_dma_initialize()
Impact:
- All use cases which use DMA
Testing:
- Tested with spresense:wifi with LCD
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
