[PATCH 05/10] board: sl28: print CPLD version on bootup

Michael Walle
2021-11-15T22:47:12Z

Most of the time it is very useful to have the version of the board
management controller. Now that we have a driver, print it during
startup.

Signed-off-by: Michael Walle <michael@walle.cc>
---
board/kontron/sl28/sl28.c | 28 ++++++++++++++++++++++++++++
include/sl28cpld.h | 2 ++
2 files changed, 30 insertions(+)

diff --git a/board/kontron/sl28/sl28.c b/board/kontron/sl28/sl28.c
index 4701eaad8d..e5c9f90c7a 100644
--- a/board/kontron/sl28/sl28.c
+++ b/board/kontron/sl28/sl28.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+

#include <common.h>
+#include <dm.h>
#include <malloc.h>
#include <errno.h>
#include <fsl_ddr.h>
@@ -15,6 +16,7 @@
#include <fsl_immap.h>
#include <netdev.h>

+#include <sl28cpld.h>
#include <fdtdec.h>
#include <miiphy.h>

@@ -39,9 +41,35 @@ int board_eth_init(struct bd_info *bis)
return pci_eth_init(bis);
}

+static int __sl28cpld_read(uint reg)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = uclass_get_device_by_driver(UCLASS_NOP,
+ DM_DRIVER_GET(sl28cpld), &dev);
+ if (ret)
+ return ret;
+
+ return sl28cpld_read(dev, reg);
+}
+
+static void print_cpld_version(void)
+{
+ int version = __sl28cpld_read(SL28CPLD_VERSION);
+
+ if (version < 0)
+ printf("CPLD: error reading version (%d)\n", version);
+ else
+ printf("CPLD: v%d\n", version);
+}
+
int checkboard(void)
{
printf("EL: %d\n", current_el());
+ if (CONFIG_IS_ENABLED(SL28CPLD))
+ print_cpld_version();
+
return 0;
}

diff --git a/include/sl28cpld.h b/include/sl28cpld.h
index d116607cfb..9a7c6de31f 100644
--- a/include/sl28cpld.h
+++ b/include/sl28cpld.h
@@ -6,6 +6,8 @@
#ifndef __SL28CPLD_H
#define __SL28CPLD_H

+#define SL28CPLD_VERSION 0x03
+
int sl28cpld_read(struct udevice *dev, uint offset);
int sl28cpld_write(struct udevice *dev, uint offset, uint8_t value);
int sl28cpld_update(struct udevice *dev, uint offset, uint8_t clear,
--
2.30.2