espressif/ESP8266_RTOS_SDK
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feat(spi_flash): Refactor SPI flash for saving IRAM

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This commit is contained in:
Dong Heng
2018-09-17 14:54:57 +08:00
parent c8ecf01b56
commit b3b3f9d3ef
5 changed files with 718 additions and 625 deletions
components
esp8266
include/driver
spi_register.h
ld
esp8266.common.ld
spi_flash
include/priv
esp_spi_flash_raw.h
src
spi_flash.cspi_flash_raw.c

45
components/esp8266/include/driver/spi_register.h

@ -211,4 +211,49 @@
#define SPI_EXT3(i) (REG_SPI_BASE(i) + 0xFC)
#define SPI_INT_HOLD_ENA 0x00000003
#define SPI_INT_HOLD_ENA_S 0
#define SPI_EXT2(i) (REG_SPI_BASE(i) + 0xF8)
#define SPI_EXT3(i) (REG_SPI_BASE(i) + 0xFC)
#define SPI_ENABLE_AHB BIT17
#define SPI_FLASH_CLK_EQU_SYSCLK BIT12
//SPI flash command
#define SPI_FLASH_READ BIT31
#define SPI_FLASH_WREN BIT30
#define SPI_FLASH_WRDI BIT29
#define SPI_FLASH_RDID BIT28
#define SPI_FLASH_RDSR BIT27
#define SPI_FLASH_WRSR BIT26
#define SPI_FLASH_PP BIT25
#define SPI_FLASH_SE BIT24
#define SPI_FLASH_BE BIT23
#define SPI_FLASH_CE BIT22
#define SPI_FLASH_RES BIT20
#define SPI_FLASH_DPD BIT21
#define SPI_FLASH_HPM BIT19
//SPI address register
#define SPI_FLASH_BYTES_LEN 24
#define SPI_BUFF_BYTE_NUM 32
#define IODATA_START_ADDR BIT0
//SPI status register
#define SPI_FLASH_BUSY_FLAG BIT0
#define SPI_FLASH_WRENABLE_FLAG BIT1
#define SPI_FLASH_BP0 BIT2
#define SPI_FLASH_BP1 BIT3
#define SPI_FLASH_BP2 BIT4
#define SPI_FLASH_TOP_BOT_PRO_FLAG BIT5
#define SPI_FLASH_STATUS_PRO_FLAG BIT7
#define FLASH_WR_PROTECT (SPI_FLASH_BP0|SPI_FLASH_BP1|SPI_FLASH_BP2)
#define SPI 0
#define PERIPHS_SPI_FLASH_C0 SPI_W0(SPI)
#define PERIPHS_SPI_FLASH_CTRL SPI_CTRL(SPI)
#define PERIPHS_SPI_FLASH_CMD SPI_CMD(SPI)
#endif // SPI_REGISTER_H_INCLUDED

2
components/esp8266/ld/esp8266.common.ld

@ -103,7 +103,7 @@ SECTIONS
*(.init.literal)
*(.init)
*(.iram1 .iram1.*)
*libspi_flash.a:spi_flash.o(.literal .text .literal.* .text.*)
*libspi_flash.a:spi_flash_raw.o(.literal .text .literal.* .text.*)
*(.literal .text .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.fini.literal)
*(.fini)