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-rw-r--r--src/drivers/i2c/Makefile.inc1
-rw-r--r--src/drivers/i2c/at24rf08c/Makefile.inc2
-rw-r--r--src/drivers/i2c/at24rf08c/at24rf08c.c74
-rw-r--r--src/drivers/i2c/at24rf08c/lenovo_serials.c137
-rw-r--r--src/mainboard/lenovo/t60/devicetree.cb11
-rw-r--r--src/mainboard/lenovo/x201/devicetree.cb11
-rw-r--r--src/mainboard/lenovo/x230/devicetree.cb14
-rw-r--r--src/mainboard/lenovo/x60/devicetree.cb12
8 files changed, 260 insertions, 2 deletions
diff --git a/src/drivers/i2c/Makefile.inc b/src/drivers/i2c/Makefile.inc
index ef7ac4b2b2..8c61b6a96d 100644
--- a/src/drivers/i2c/Makefile.inc
+++ b/src/drivers/i2c/Makefile.inc
@@ -7,3 +7,4 @@ subdirs-y += lm63
subdirs-y += rtd2132
subdirs-y += w83795
subdirs-y += w83793
+subdirs-y += at24rf08c
diff --git a/src/drivers/i2c/at24rf08c/Makefile.inc b/src/drivers/i2c/at24rf08c/Makefile.inc
new file mode 100644
index 0000000000..10c91d1764
--- /dev/null
+++ b/src/drivers/i2c/at24rf08c/Makefile.inc
@@ -0,0 +1,2 @@
+ramstage-$(CONFIG_VENDOR_LENOVO) += at24rf08c.c
+ramstage-$(CONFIG_VENDOR_LENOVO) += lenovo_serials.c
diff --git a/src/drivers/i2c/at24rf08c/at24rf08c.c b/src/drivers/i2c/at24rf08c/at24rf08c.c
new file mode 100644
index 0000000000..a9cf2c5031
--- /dev/null
+++ b/src/drivers/i2c/at24rf08c/at24rf08c.c
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Vladimir Serbinenko
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <types.h>
+#include <string.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/smbus.h>
+#include <smbios.h>
+#include <console/console.h>
+
+static void at24rf08c_init(device_t dev)
+{
+ int i, j;
+
+ if (!dev->enabled)
+ return;
+
+ /* Ensure that EEPROM/RFID chip is not accessible through RFID.
+ Need to do it only on 5c. */
+ if (dev->path.type != DEVICE_PATH_I2C || dev->path.i2c.device != 0x5c)
+ return;
+
+ printk (BIOS_DEBUG, "Locking EEPROM RFID\n");
+
+ for (i = 0; i < 8; i++)
+ {
+ /* After a register write AT24RF08C sometimes stops responding.
+ Retry several times in case of failure.
+ */
+ for (j = 0; j < 100; j++)
+ if (smbus_write_byte(dev, i, 0x0f) >= 0)
+ break;
+ }
+
+ printk (BIOS_DEBUG, "init EEPROM done\n");
+}
+
+static void at24rf08c_noop(device_t dummy)
+{
+}
+
+static struct device_operations at24rf08c_operations = {
+ .read_resources = at24rf08c_noop,
+ .set_resources = at24rf08c_noop,
+ .enable_resources = at24rf08c_noop,
+ .init = at24rf08c_init,
+};
+
+static void enable_dev(device_t dev)
+{
+ dev->ops = &at24rf08c_operations;
+}
+
+struct chip_operations drivers_i2c_at24rf08c_ops = {
+ CHIP_NAME("AT24RF08C")
+ .enable_dev = enable_dev,
+};
diff --git a/src/drivers/i2c/at24rf08c/lenovo_serials.c b/src/drivers/i2c/at24rf08c/lenovo_serials.c
new file mode 100644
index 0000000000..0aab982123
--- /dev/null
+++ b/src/drivers/i2c/at24rf08c/lenovo_serials.c
@@ -0,0 +1,137 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Vladimir Serbinenko
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <types.h>
+#include <string.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/smbus.h>
+#include <smbios.h>
+#include <console/console.h>
+
+static void at24rf08c_read_string(u8 bank, u8 start, u8 len, char *result)
+{
+ int i;
+ device_t dev;
+
+ dev = dev_find_slot_on_smbus(1, 0x54 | bank);
+ if (dev == 0) {
+ printk(BIOS_WARNING, "EEPROM not found\n");
+ memcpy(result, "*INVALID*", sizeof ("*INVALID*"));
+ return;
+ }
+
+ for (i = 0; i < len; i++) {
+ int t;
+ int j;
+ /* After a register write AT24RF08C (which we issued in init function) sometimes stops responding.
+ Retry several times in case of failure.
+ */
+ for (j = 0; j < 100; j++) {
+ t = smbus_read_byte(dev, start + i);
+ if (t >= 0)
+ break;
+ }
+ if (t < 0x20 || t > 0x7f) {
+ memcpy(result, "*INVALID*", sizeof ("*INVALID*"));
+ return;
+ }
+ result[i] = t;
+ }
+}
+
+const char *smbios_mainboard_serial_number(void)
+{
+ static char result[12];
+ static int already_read;
+
+ if (already_read)
+ return result;
+
+ memset(result, 0, sizeof (result));
+ at24rf08c_read_string(0, 0x2e, 7, result);
+
+ already_read = 1;
+ return result;
+}
+
+const char *smbios_mainboard_product_name(void)
+{
+ static char result[12];
+ static int already_read;
+
+ if (already_read)
+ return result;
+
+ memset (result, 0, sizeof (result));
+ at24rf08c_read_string(0, 0x27, 7, result);
+
+ already_read = 1;
+ return result;
+}
+
+void smbios_mainboard_set_uuid(u8 *uuid)
+{
+ static char result[16];
+ unsigned i;
+ static int already_read;
+ device_t dev;
+ const int remap[16] = {
+ /* UUID byteswap. */
+ 3, 2, 1, 0, 5, 4, 7, 6, 8, 9, 10, 11, 12, 13, 14, 15
+ };
+
+
+ if (already_read) {
+ memcpy (uuid, result, 16);
+ return;
+ }
+
+ memset (result, 0, sizeof (result));
+
+ dev = dev_find_slot_on_smbus(1, 0x56);
+ if (dev == 0) {
+ printk(BIOS_WARNING, "eeprom not found\n");
+ already_read = 1;
+ memset (uuid, 0, 16);
+ return;
+ }
+
+ for (i = 0; i < 16; i++) {
+ int t;
+ int j;
+ /* After a register write AT24RF08C (which we issued in init function) sometimes stops responding.
+ Retry several times in case of failure.
+ */
+ for (j = 0; j < 100; j++) {
+ t = smbus_read_byte(dev, 0x12 + i);
+ if (t >= 0)
+ break;
+ }
+ if (t < 0) {
+ memset (result, 0, sizeof (result));
+ break;
+ }
+ result[remap[i]] = t;
+ }
+
+ already_read = 1;
+
+ memcpy (uuid, result, 16);
+}
diff --git a/src/mainboard/lenovo/t60/devicetree.cb b/src/mainboard/lenovo/t60/devicetree.cb
index 899ea5ace2..b87a2233e0 100644
--- a/src/mainboard/lenovo/t60/devicetree.cb
+++ b/src/mainboard/lenovo/t60/devicetree.cb
@@ -213,6 +213,17 @@ chip northbridge/intel/i945
register "reg11" = "0x07"
device i2c 69 on end
end
+ # eeprom, 8 virtual devices, same chip
+ chip drivers/i2c/at24rf08c
+ device i2c 54 on end
+ device i2c 55 on end
+ device i2c 56 on end
+ device i2c 57 on end
+ device i2c 5c on end
+ device i2c 5d on end
+ device i2c 5e on end
+ device i2c 5f on end
+ end
end
end
end
diff --git a/src/mainboard/lenovo/x201/devicetree.cb b/src/mainboard/lenovo/x201/devicetree.cb
index a8831c2691..37a430c928 100644
--- a/src/mainboard/lenovo/x201/devicetree.cb
+++ b/src/mainboard/lenovo/x201/devicetree.cb
@@ -145,6 +145,17 @@ chip northbridge/intel/nehalem
end
device pci 1f.3 on # SMBUS
subsystemid 0x17aa 0x2167
+ # eeprom, 8 virtual devices, same chip
+ chip drivers/i2c/at24rf08c
+ device i2c 54 on end
+ device i2c 55 on end
+ device i2c 56 on end
+ device i2c 57 on end
+ device i2c 5c on end
+ device i2c 5d on end
+ device i2c 5e on end
+ device i2c 5f on end
+ end
end
end
end
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb
index 3650b38500..f630e3d416 100644
--- a/src/mainboard/lenovo/x230/devicetree.cb
+++ b/src/mainboard/lenovo/x230/devicetree.cb
@@ -127,7 +127,19 @@ chip northbridge/intel/sandybridge
end
end # LPC bridge
device pci 1f.2 on end # SATA Controller 1
- device pci 1f.3 on end # SMBus
+ device pci 1f.3 on
+ # eeprom, 8 virtual devices, same chip
+ chip drivers/i2c/at24rf08c
+ device i2c 54 on end
+ device i2c 55 on end
+ device i2c 56 on end
+ device i2c 57 on end
+ device i2c 5c on end
+ device i2c 5d on end
+ device i2c 5e on end
+ device i2c 5f on end
+ end
+ end # SMBus
device pci 1f.5 off end # SATA Controller 2
device pci 1f.6 on end # Thermal
end
diff --git a/src/mainboard/lenovo/x60/devicetree.cb b/src/mainboard/lenovo/x60/devicetree.cb
index cfbb9db584..3880f1896d 100644
--- a/src/mainboard/lenovo/x60/devicetree.cb
+++ b/src/mainboard/lenovo/x60/devicetree.cb
@@ -190,7 +190,17 @@ chip northbridge/intel/i945
register "reg11" = "0x07"
device i2c 69 on end
end
-
+ # eeprom, 8 virtual devices, same chip
+ chip drivers/i2c/at24rf08c
+ device i2c 54 on end
+ device i2c 55 on end
+ device i2c 56 on end
+ device i2c 57 on end
+ device i2c 5c on end
+ device i2c 5d on end
+ device i2c 5e on end
+ device i2c 5f on end
+ end
end
end
chip southbridge/ricoh/rl5c476
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 19:38:47 +0000