summary |
shortlog |
log |
commit | commitdiff |
tree
raw |
patch |
inline | side by side (from parent 1:
5b3b0d6)
When doing a memory mapped copy we may have DMA available and thus need
to have this copy abstracted so that the driver can do it, rather than a
simple memcpy.
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
#include <spi.h>
#include <spi_flash.h>
#include <watchdog.h>
#include <spi.h>
#include <spi_flash.h>
#include <watchdog.h>
+#include <linux/compiler.h>
+void __weak spi_flash_copy_mmap(void *data, void *offset, size_t len)
+{
+ memcpy(data, offset, len);
+}
+
int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
size_t len, void *data)
{
int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
size_t len, void *data)
{
return ret;
}
spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP);
return ret;
}
spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP);
- memcpy(data, flash->memory_map + offset, len);
+ spi_flash_copy_mmap(data, flash->memory_map + offset, len);
spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP_END);
spi_release_bus(flash->spi);
return 0;
spi_xfer(flash->spi, 0, NULL, NULL, SPI_XFER_MMAP_END);
spi_release_bus(flash->spi);
return 0;
int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
void *din, unsigned long flags);
int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
void *din, unsigned long flags);
+/* Copy memory mapped data */
+void spi_flash_copy_mmap(void *data, void *offset, size_t len);
+
/**
* Determine if a SPI chipselect is valid.
* This function is provided by the board if the low-level SPI driver
/**
* Determine if a SPI chipselect is valid.
* This function is provided by the board if the low-level SPI driver