cxgb4: Add support for T4 hardwired driver configuration settings
In case if user defined configuration file at /lib/firmware/cxgb4/t4-config.txt
location and also factory default configuration file written to FLASH are not
present then driver will use hardwired configuration settings.
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 419432d..61f002d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -120,6 +120,28 @@
}
}
+/**
+ * t4_write_indirect - write indirectly addressed registers
+ * @adap: the adapter
+ * @addr_reg: register holding the indirect addresses
+ * @data_reg: register holding the value for the indirect registers
+ * @vals: values to write
+ * @nregs: how many indirect registers to write
+ * @start_idx: address of first indirect register to write
+ *
+ * Writes a sequential block of registers that are accessed indirectly
+ * through an address/data register pair.
+ */
+void t4_write_indirect(struct adapter *adap, unsigned int addr_reg,
+ unsigned int data_reg, const u32 *vals,
+ unsigned int nregs, unsigned int start_idx)
+{
+ while (nregs--) {
+ t4_write_reg(adap, addr_reg, start_idx++);
+ t4_write_reg(adap, data_reg, *vals++);
+ }
+}
+
/*
* Get the reply to a mailbox command and store it in @rpl in big-endian order.
*/