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spi_flash: add caps for dummy output control

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This commit is contained in:
michael 2020-02-10 09:05:34 +08:00 committed by bot
parent 640c7c5107
commit 3b1fa7b8f0
6 changed files with 54 additions and 28 deletions
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7
components/soc/soc/esp32/include/soc/spi_caps.h
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@ -60,4 +60,9 @@
//#define SOC_SPI_SLAVE_SUPPORT_SEG_TRANS
//#define SOC_SPI_SUPPORT_CD_SIG
#define SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(SPI_HOST) true
// Peripheral supports DIO, DOUT, QIO, or QOUT
#define SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(spi_dev) 1
// Peripheral doesn't support output given level during its "dummy phase"
#define SOC_SPI_PERIPH_SUPPORT_CONTROL_DUMMY_OUTPUT(spi_dev) 0

16
components/soc/soc/esp32s2/include/soc/spi_caps.h
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@ -45,5 +45,21 @@
#define SOC_SPI_SUPPORT_CD_SIG 1
#define SOC_SPI_SUPPORT_CONTINUOUS_TRANS 1
#ifdef __cplusplus
extern "C" {
#endif
struct spi_dev_s;
extern volatile struct spi_dev_s GPSPI3;
struct spi_mem_dev_s;
extern volatile struct spi_mem_dev_s SPIMEM1;
#ifdef __cplusplus
}
#endif
// Peripheral supports DIO, DOUT, QIO, or QOUT
#define SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(spi_dev) (!((void*)spi_dev == (void*)&GPSPI3))
// Peripheral supports output given level during its "dummy phase"
#define SOC_SPI_PERIPH_SUPPORT_CONTROL_DUMMY_OUTPUT(spi_dev) ((void*)spi_dev == (void*)&SPIMEM1)

2
components/soc/soc/esp32s2/include/soc/spi_mem_struct.h
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@ -17,7 +17,7 @@
extern "C" {
#endif
typedef volatile struct {
typedef volatile struct spi_mem_dev_s {
union {
struct {
uint32_t reserved0: 17; /*reserved*/

2
components/soc/soc/esp32s2/include/soc/spi_struct.h
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@ -17,7 +17,7 @@
extern "C" {
#endif
typedef volatile struct {
typedef volatile struct spi_dev_s {
union {
struct {
uint32_t conf_bitlen:23; /*Define the spi_clk cycles of SPI_CONF state. Can be configured in CONF state.*/

22
components/soc/src/hal/spi_flash_hal_common.inc
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@ -55,12 +55,32 @@ esp_err_t spi_flash_hal_configure_host_io_mode(
if (!SOC_SPI_PERIPH_SUPPORT_MULTILINE_MODE(dev) && io_mode > SPI_FLASH_FASTRD) {
return ESP_ERR_NOT_SUPPORTED;
}
if (addr_bitlen > 24 && SOC_SPI_PERIPH_SUPPORT_CONTROL_DUMMY_OUTPUT(dev)) {
/*
* The extra address bits (24-addr_bitlen) are used to control the M7-M0 bits right after
* the address field, to avoid the flash going into continuous read mode.
*
* On ESP32-S2 the MEMSPI (that SUPPORT_CONTROL_DUMMY_OUTPUT), the least significant
* addr_bitlen bits of the address will be used, instead of the MSBs. The driver is
* required to set the address according to the extra address bits.
*
* To reduce the time consuming for the read() function to calculate the shift of address,
* the addr_bitlen is kept to 24 bits. And the CONTROL_DUMMY_OUTPUT feature is used to
* control those bits instead.
*/
//This block is only reached when SPI_FLASH_QIO or SPI_FLASH_DIO
assert(io_mode == SPI_FLASH_DIO || io_mode == SPI_FLASH_QIO);
int line_width = (io_mode == SPI_FLASH_DIO? 2: 4);
dummy_cyclelen_base += (addr_bitlen - 24) / line_width;
addr_bitlen = 24;
spi_flash_ll_set_dummy_out(dev, 1, 1);
}
spi_flash_ll_set_command8(dev, command);
spi_flash_ll_set_addr_bitlen(dev, addr_bitlen);
// Add dummy cycles to compensate for latency of GPIO matrix and external delay, if necessary...
spi_flash_ll_set_dummy(dev, COMPUTE_DUMMY_CYCLELEN(host, dummy_cyclelen_base));
spi_flash_ll_set_dummy_out(dev, 1, 1);
//disable all data phases, enable them later if needed
spi_flash_ll_set_miso_bitlen(dev, 0);
spi_flash_ll_set_mosi_bitlen(dev, 0);

19
components/spi_flash/private_include/spi_flash_defs.h
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@ -42,23 +42,9 @@
#define CMD_RST_EN 0x66
#define CMD_RST_DEV 0x99
#ifdef CONFIG_IDF_TARGET_ESP32S2
#define SPI_FLASH_DIO_ADDR_BITLEN 24
#define SPI_FLASH_DIO_DUMMY_BITLEN 4
#define SPI_FLASH_QIO_ADDR_BITLEN 24
#define SPI_FLASH_QIO_DUMMY_BITLEN 6
#define SPI_FLASH_QOUT_ADDR_BITLEN 24
#define SPI_FLASH_QOUT_DUMMY_BITLEN 8
#define SPI_FLASH_DOUT_ADDR_BITLEN 24
#define SPI_FLASH_DOUT_DUMMY_BITLEN 8
#define SPI_FLASH_FASTRD_ADDR_BITLEN 24
#define SPI_FLASH_FASTRD_DUMMY_BITLEN 8
#define SPI_FLASH_SLOWRD_ADDR_BITLEN 24
#define SPI_FLASH_SLOWRD_DUMMY_BITLEN 0
#else
#define SPI_FLASH_DIO_ADDR_BITLEN 28
#define SPI_FLASH_DIO_ADDR_BITLEN (24+4)
#define SPI_FLASH_DIO_DUMMY_BITLEN 2
#define SPI_FLASH_QIO_ADDR_BITLEN 32
#define SPI_FLASH_QIO_ADDR_BITLEN (24+8)
#define SPI_FLASH_QIO_DUMMY_BITLEN 4
#define SPI_FLASH_QOUT_ADDR_BITLEN 24
#define SPI_FLASH_QOUT_DUMMY_BITLEN 8
@ -68,4 +54,3 @@
#define SPI_FLASH_FASTRD_DUMMY_BITLEN 8
#define SPI_FLASH_SLOWRD_ADDR_BITLEN 24
#define SPI_FLASH_SLOWRD_DUMMY_BITLEN 0
#endif