diff mbox series

[06/12] net: ks8851: Clean up chip ID readout

Message ID 20200325184501.200580-6-marex@denx.de
State Accepted
Commit eb69d8bf3c043f126077e6b0905def8cca5c4723
Headers show
Series [01/12] net: ks8851: Replace malloc()+memset() with calloc() | expand

Commit Message

Marek Vasut March 25, 2020, 6:44 p.m. UTC
There is only one chip ID in the table of chip IDs for this chip.
Read out the chip ID instead and mask off the last "revision" bit
to check the chip ID, this works for all chips in the family. Then
drop the chip ID passing around.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Eugen Hristev <eugen.hristev at microchip.com>
Cc: Joe Hershberger <joe.hershberger at ni.com>
---
 drivers/net/ks8851_mll.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ks8851_mll.c b/drivers/net/ks8851_mll.c
index 2d854d855d..503da7a3bf 100644
--- a/drivers/net/ks8851_mll.c
+++ b/drivers/net/ks8851_mll.c
@@ -17,11 +17,6 @@ 
 
 #define RX_BUF_SIZE			2000
 
-static const struct chip_id chip_ids[] =  {
-	{CIDER_ID, "KSZ8851"},
-	{0, NULL},
-};
-
 /*
  * struct ks_net - KS8851 driver private data
  * @bus_width	: i/o bus width.
@@ -331,7 +326,7 @@  static void ks_setup_int(struct eth_device *dev)
 
 static int ks8851_mll_detect_chip(struct eth_device *dev)
 {
-	unsigned short val, i;
+	unsigned short val;
 
 	ks_read_config(dev);
 
@@ -348,19 +343,11 @@  static int ks8851_mll_detect_chip(struct eth_device *dev)
 
 	debug("Read back KS8851 id 0x%x\n", val);
 
-	/* only one entry in the table */
-	val &= 0xfff0;
-	for (i = 0; chip_ids[i].id != 0; i++) {
-		if (chip_ids[i].id == val)
-			break;
-	}
-	if (!chip_ids[i].id) {
+	if ((val & 0xfff0) != CIDER_ID) {
 		printf(DRIVERNAME ": Unknown chip ID %04x\n", val);
 		return -1;
 	}
 
-	dev->priv = (void *)&chip_ids[i];
-
 	return 0;
 }
 
@@ -404,10 +391,6 @@  static void ks8851_mll_enable(struct eth_device *dev)
 
 static int ks8851_mll_init(struct eth_device *dev, bd_t *bd)
 {
-	struct chip_id *id = dev->priv;
-
-	debug(DRIVERNAME ": detected %s controller\n", id->name);
-
 	if (ks_read_selftest(dev)) {
 		printf(DRIVERNAME ": Selftest failed\n");
 		return -1;