+/**
+ * t3_check_tpsram_version - read the tp sram version
+ * @adapter: the adapter
+ *
+ * Reads the protocol sram version from serial eeprom.
+ */
+int t3_check_tpsram_version(struct adapter *adapter)
+{
+ int ret;
+ u32 vers;
+ unsigned int major, minor;
+
+ /* Get version loaded in SRAM */
+ t3_write_reg(adapter, A_TP_EMBED_OP_FIELD0, 0);
+ ret = t3_wait_op_done(adapter, A_TP_EMBED_OP_FIELD0,
+ 1, 1, 5, 1);
+ if (ret)
+ return ret;
+
+ vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
+
+ major = G_TP_VERSION_MAJOR(vers);
+ minor = G_TP_VERSION_MINOR(vers);
+
+ if (major == TP_VERSION_MAJOR && minor == TP_VERSION_MINOR)
+ return 0;
+
+ return -EINVAL;
+}
+
+/**
+ * t3_check_tpsram - check if provided protocol SRAM
+ * is compatible with this driver
+ * @adapter: the adapter
+ * @tp_sram: the firmware image to write
+ * @size: image size
+ *
+ * Checks if an adapter's tp sram is compatible with the driver.
+ * Returns 0 if the versions are compatible, a negative error otherwise.
+ */
+int t3_check_tpsram(struct adapter *adapter, u8 *tp_sram, unsigned int size)
+{
+ u32 csum;
+ unsigned int i;
+ const u32 *p = (const u32 *)tp_sram;
+
+ /* Verify checksum */
+ for (csum = 0, i = 0; i < size / sizeof(csum); i++)
+ csum += ntohl(p[i]);
+ if (csum != 0xffffffff) {
+ CH_ERR(adapter, "corrupted protocol SRAM image, checksum %u\n",
+ csum);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+