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().
fs/procfs/fs_procfs.c contained an unused reference to an STM32 procfs structure. This is wrong in two ways: (1) There should be not STM32 references outside of arch/arm and boards/arm and (2) the declare STM32 structure is not used anyway.
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>
configuration changes
According to the usage documentation, [-e] option should "enforce
distclean if already configured". This behavior was broken due to the -e
option being evaluated only if the current defconfig is different from
the backup defconfig. The new -E command inherits this behavior.
Summary:
- This commit refactors stm32_gs2200m.c
- gs2200m_irq_enable() and gs2200m_irq_disable() are now symmetric.
Impact:
- All use cases which use the gs2200m driver.
Testing:
- Tested with stm32f4discovery:wifi
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
Summary:
- This commit refactors cxd56_gs2200m.c
- gs2200m_irq_enable() and gs2200m_irq_disable() are now symmetric.
Impact:
- All use cases which use the gs2200m driver.
Testing:
- Tested with spresense:wifi
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
