1 files changed, 22 insertions, 0 deletions

diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h
new file mode 100644
index 000000000000..1085212c446e
--- /dev/null
+++ b/include/linux/spi/eeprom.h
@@ -0,0 +1,22 @@
+#ifndef __LINUX_SPI_EEPROM_H
+#define __LINUX_SPI_EEPROM_H
+
+/*
+ * Put one of these structures in platform_data for SPI EEPROMS handled
+ * by the "at25" driver.  On SPI, most EEPROMS understand the same core
+ * command set.  If you need to support EEPROMs that don't yet fit, add
+ * flags to support those protocol options.  These values all come from
+ * the chip datasheets.
+ */
+struct spi_eeprom {
+        u32             byte_len;
+        char            name[10];
+        u16             page_size;              /* for writes */
+        u16             flags;
+#define EE_ADDR1        0x0001                  /*  8 bit addrs */
+#define EE_ADDR2        0x0002                  /* 16 bit addrs */
+#define EE_ADDR3        0x0004                  /* 24 bit addrs */
+#define EE_READONLY     0x0008                  /* disallow writes */
+};
+
+#endif /* __LINUX_SPI_EEPROM_H */