[coreboot-gerrit] Change in coreboot[master]: [WIP] Give `lenovo_serial` EEPROMs a name in dt

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35457 )

Change subject: [WIP] Give `lenovo_serial` EEPROMs a name in dt
......................................................................

[WIP] Give `lenovo_serial` EEPROMs a name in dt

Change-Id: I99edb7a8428ac7efa275fa09a10ec051b0f9abd3
Signed-off-by: Nico Huber 
---
M src/drivers/i2c/at24rf08c/lenovo_serials.c
M src/mainboard/lenovo/x200/devicetree.cb
2 files changed, 13 insertions(+), 15 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/35457/1

diff --git a/src/drivers/i2c/at24rf08c/lenovo_serials.c b/src/drivers/i2c/at24rf08c/lenovo_serials.c
index 0a6b343..3464e4a 100644
--- a/src/drivers/i2c/at24rf08c/lenovo_serials.c
+++ b/src/drivers/i2c/at24rf08c/lenovo_serials.c
@@ -20,17 +20,22 @@
 #include <smbios.h>
 #include <console/console.h>
 #include <version.h>
+#include <static.h>
 #include "lenovo.h"

#define ERROR_STRING "*INVALID*"

static struct device *at24rf08c_find_bank(u8 bank)
 {
-	struct device *dev;
-	dev = dev_find_slot_on_smbus(1, 0x54 | bank);
-	if (!dev)
-		printk(BIOS_WARNING, "EEPROM not found\n");
-	return dev;
+	switch (bank) {
+	case 0:
+		return &__static_lenovo_serial0;
+	case 2:
+		return &__static_lenovo_serial2;
+	default:
+		die("%s: Unknown EEPROM bank number.\n", __func__);
+		return NULL;
+	}
 }

static int at24rf08c_read_byte(struct device *dev, u8 addr)
@@ -134,14 +139,7 @@

memset(result, 0, sizeof (result));

-	dev = dev_find_slot_on_smbus(1, 0x56);
-	if (dev == NULL) {
-		printk(BIOS_WARNING, "EEPROM not found\n");
-		already_read = 1;
-		memset(uuid, 0, 16);
-		return;
-	}
-
+	dev = at24rf08c_find_bank(2);
    for (i = 0; i < 16; i++) {
    	int t;
    	int j;
diff --git a/src/mainboard/lenovo/x200/devicetree.cb b/src/mainboard/lenovo/x200/devicetree.cb
index 2ed4308..5ff5d52 100644
--- a/src/mainboard/lenovo/x200/devicetree.cb
+++ b/src/mainboard/lenovo/x200/devicetree.cb
@@ -215,9 +215,9 @@
    			ioapic_irq 2 INTC 0x12
    			# eeprom, 8 virtual devices, same chip
    			chip drivers/i2c/at24rf08c
-					device i2c 54 on end
+					device i2c 54 as lenovo_serial0 on end
    				device i2c 55 on end
-					device i2c 56 on end
+					device i2c 56 as lenovo_serial2 on end
    				device i2c 57 on end
    				device i2c 5c on end
    				device i2c 5d on end