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esp_flash: add support for external flash on C3

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This commit is contained in:
Michael (XIAO Xufeng)
2020-12-16 14:21:06 +08:00
parent 7ed95d13b1
commit 7f3e61cf63
4 changed files with 41 additions and 18 deletions
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39
components/hal/esp32c3/include/hal/gpspi_flash_ll.h
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@@ -60,6 +60,15 @@ static inline void gpspi_flash_ll_reset(spi_dev_t *dev)
{
dev->user.val = 0;
dev->ctrl.val = 0;
dev->clk_gate.clk_en = 1;
dev->clk_gate.mst_clk_active = 1;
dev->clk_gate.mst_clk_sel = 1;
dev->dma_conf.val = 0;
dev->dma_conf.tx_seg_trans_clr_en = 1;
dev->dma_conf.rx_seg_trans_clr_en = 1;
dev->dma_conf.dma_seg_trans_en = 0;
}
/**
@@ -71,7 +80,7 @@ static inline void gpspi_flash_ll_reset(spi_dev_t *dev)
*/
static inline bool gpspi_flash_ll_cmd_is_done(const spi_dev_t *dev)
{
return (dev->cmd.val == 0);
return (dev->cmd.usr == 0);
}
/**
@@ -139,6 +148,8 @@ static inline void gpspi_flash_ll_set_buffer_data(spi_dev_t *dev, const void *bu
*/
static inline void gpspi_flash_ll_user_start(spi_dev_t *dev)
{
dev->cmd.update = 1;
while (dev->cmd.update);
dev->cmd.usr = 1;
}
@@ -151,7 +162,7 @@ static inline void gpspi_flash_ll_user_start(spi_dev_t *dev)
*/
static inline bool gpspi_flash_ll_host_idle(const spi_dev_t *dev)
{
abort(); //TODO ESP32-C3 IDF-2204
return dev->cmd.usr == 0;
}
/**
@@ -198,10 +209,10 @@ static inline void gpspi_flash_ll_set_read_mode(spi_dev_t *dev, esp_flash_io_mod
ctrl.val &= ~(SPI_FCMD_QUAD_M | SPI_FADDR_QUAD_M | SPI_FREAD_QUAD_M | SPI_FCMD_DUAL_M | SPI_FADDR_DUAL_M | SPI_FREAD_DUAL_M);
user.val &= ~(SPI_FWRITE_QUAD_M | SPI_FWRITE_DUAL_M);
// ctrl.val |= SPI_FAST_RD_MODE_M;
switch (read_mode) {
case SPI_FLASH_FASTRD:
//the default option
case SPI_FLASH_SLOWRD:
break;
case SPI_FLASH_QIO:
ctrl.fread_quad = 1;
@@ -221,9 +232,6 @@ static inline void gpspi_flash_ll_set_read_mode(spi_dev_t *dev, esp_flash_io_mod
ctrl.fread_dual = 1;
user.fwrite_dual = 1;
break;
// case SPI_FLASH_SLOWRD:
// ctrl.fast_rd_mode = 0;
// break;
default:
abort();
}
@@ -251,7 +259,10 @@ static inline void gpspi_flash_ll_set_clock(spi_dev_t *dev, gpspi_flash_ll_clock
*/
static inline void gpspi_flash_ll_set_miso_bitlen(spi_dev_t *dev, uint32_t bitlen)
{
abort(); //TODO ESP32-C3 IDF-2204
dev->user.usr_miso = bitlen > 0;
if (bitlen) {
dev->ms_dlen.ms_data_bitlen = bitlen - 1;
}
}
/**
@@ -263,7 +274,10 @@ static inline void gpspi_flash_ll_set_miso_bitlen(spi_dev_t *dev, uint32_t bitle
*/
static inline void gpspi_flash_ll_set_mosi_bitlen(spi_dev_t *dev, uint32_t bitlen)
{
abort(); //TODO ESP32-C3 IDF-2204
dev->user.usr_mosi = bitlen > 0;
if (bitlen) {
dev->ms_dlen.ms_data_bitlen = bitlen - 1;
}
}
/**
@@ -356,9 +370,16 @@ static inline void gpspi_flash_ll_set_dummy_out(spi_dev_t *dev, uint32_t out_en,
dev->ctrl.d_pol = out_lev;
}
/**
* Set extra hold time of CS after the clocks.
*
* @param dev Beginning address of the peripheral registers.
* @param hold_n Cycles of clocks before CS is inactive
*/
static inline void gpspi_flash_ll_set_hold(spi_dev_t *dev, uint32_t hold_n)
{
abort(); //TODO ESP32-C3 IDF-2204
dev->user1.cs_hold_time = hold_n - 1;
dev->user.cs_hold = (hold_n > 0? 1: 0);
}
#ifdef __cplusplus