luchianmihai/walnux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

xtensa/esp32: Writeback PSRAM data when mapping SPI Flash address to ESP32's address bus

Browse source
This commit is contained in:
chenwen 2021-02-08 09:46:17 +08:00 • committed by Alan Carvalho de Assis
parent dee641828f
commit dcec04f5b2
1 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
arch/xtensa/src/esp32/esp32_spiflash.c
View file

@ -1328,6 +1328,7 @@ static int IRAM_ATTR esp32_mmap(FAR struct esp32_spiflash_s *priv,
int flash_page;
int page_cnt;
struct spiflash_cachestate_s state;
bool flush = false;
esp32_spiflash_opstart(&state);
@ -1363,7 +1364,7 @@ static int IRAM_ATTR esp32_mmap(FAR struct esp32_spiflash_s *priv,
req->ptr = (void *)(VADDR0_START_ADDR +
start_page * SPI_FLASH_MMU_PAGE_SIZE +
MMU_ADDR2OFF(req->src_addr));
flush = true;
ret = 0;
}
else
@ -1371,10 +1372,17 @@ static int IRAM_ATTR esp32_mmap(FAR struct esp32_spiflash_s *priv,
ret = -ENOBUFS;
}
Cache_Flush(0);
#ifdef CONFIG_SMP
Cache_Flush(1);
if (flush)
{
#ifdef CONFIG_ESP32_SPIRAM
esp_spiram_writeback_cache();
#endif
Cache_Flush(0);
#ifdef CONFIG_SMP
Cache_Flush(1);
#endif
}
esp32_spiflash_opdone(&state);
return ret;