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esp_flash: add initialization interface for SPI devices

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Michael (XIAO Xufeng)
2019-06-24 12:56:39 +08:00
parent 65c0d354e4
commit d6bd24ca67
13 changed files with 382 additions and 230 deletions
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6
components/soc/esp32/include/hal/spi_flash_ll.h
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@@ -24,6 +24,7 @@
#include <stdlib.h>
#include "soc/spi_periph.h"
#include "hal/spi_types.h"
#include "hal/spi_flash_types.h"
#include <sys/param.h> // For MIN/MAX
#include <stdbool.h>
@@ -39,10 +40,7 @@
#define SPI_FLASH_LL_CLKREG_VAL_80MHZ ((spi_flash_ll_clock_reg_t){.val=0x80000000}) ///< Clock set to 80 MHz
/// Get the start address of SPI peripheral registers by the host ID
#define spi_flash_ll_get_hw(n) ((n)==0||(n)==1? &SPI1:((n)==2?&SPI2:((n)==3?&SPI3:({abort();(spi_dev_t*)0;}))))
///Slowest io mode supported by ESP32, currently SlowRd
#define SPI_FLASH_READ_MODE_MIN SPI_FLASH_SLOWRD
#define spi_flash_ll_get_hw(host_id) ((host_id)==SPI1_HOST? &SPI1:((host_id)==SPI2_HOST?&SPI2:((host_id)==SPI3_HOST?&SPI3:({abort();(spi_dev_t*)0;}))))
/// type to store pre-calculated register value in above layers
typedef typeof(SPI1.clock) spi_flash_ll_clock_reg_t;