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Kwabena/fix portenta ethernet dma buffer #131

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Kwabena/fix portenta ethernet dma buffer #131

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dcc329d
ports/stm32: Add configurable eth dma section.
kwagyeman Jan 24, 2025
accd623
ports/stm32/boards: Configure Arduino Portenta ETH DMA buffer sections.
kwagyeman Jan 24, 2025
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2 changes: 2 additions & 0 deletions ports/stm32/boards/ARDUINO_PORTENTA_H7/mpconfigboard.h
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Original file line number Diff line number Diff line change
Expand Up @@ -325,6 +325,8 @@ extern struct _spi_bdev_t spi_bdev;
#define MICROPY_HW_ETH_RMII_TXD0 (pin_G13)
#define MICROPY_HW_ETH_RMII_TXD1 (pin_G12)

#define MICROPY_HW_ETH_DMA_ATTR_SECTION __attribute__((section(".dma_buffer")))

#define MICROPY_HW_USB_VID 0x2341
#define MICROPY_HW_USB_PID 0x045B
#define MICROPY_HW_USB_PID_CDC_MSC (MICROPY_HW_USB_PID)
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4 changes: 4 additions & 0 deletions ports/stm32/eth.c
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Expand Up @@ -121,7 +121,11 @@ typedef struct _eth_t {
int16_t (*phy_get_link_status)(uint32_t phy_addr);
} eth_t;

#ifdef MICROPY_HW_ETH_DMA_ATTR_SECTION
static eth_dma_t eth_dma __attribute__((aligned(16384))) MICROPY_HW_ETH_DMA_ATTR_SECTION;
#else
static eth_dma_t eth_dma __attribute__((aligned(16384)));
#endif

eth_t eth_instance;

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