commit 8207d4ee44d3f525bf9aa57807ac9db5d0d90c1a
author Helge Deller <deller@gmx.de> Fri Feb 08 18:28:13 2019 +0100
committer Helge Deller <deller@gmx.de> Thu Feb 21 20:37:13 2019 +0100
tree 13c14cc3d981f137402301355c92cf4f58abb351
parent 661faf31021dda4df1ea46594ec03de68f5ac47d

parisc: Show machine product number during boot

Ask PDC firmware during boot for the original and current product
number as well as the serial number and show it (if available).

Signed-off-by: Helge Deller <deller@gmx.de>

arch/parisc/kernel/processor.c

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 82bd0d0..7f4d042 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -242,6 +242,7 @@ static int __init processor_probe(struct parisc_device *dev)
 void __init collect_boot_cpu_data(void)
 {
 	unsigned long cr16_seed;
+	char orig_prod_num[64], current_prod_num[64], serial_no[64];
 
 	memset(&boot_cpu_data, 0, sizeof(boot_cpu_data));
 
@@ -301,6 +302,14 @@ void __init collect_boot_cpu_data(void)
 	_parisc_requires_coherency = (boot_cpu_data.cpu_type == mako) ||
 				(boot_cpu_data.cpu_type == mako2);
 #endif
+
+	if (pdc_model_platform_info(orig_prod_num, current_prod_num, serial_no) == PDC_OK) {
+		printk(KERN_INFO "product %s, original product %s, S/N: %s\n",
+			current_prod_num, orig_prod_num, serial_no);
+		add_device_randomness(orig_prod_num, strlen(orig_prod_num));
+		add_device_randomness(current_prod_num, strlen(current_prod_num));
+		add_device_randomness(serial_no, strlen(serial_no));
+	}
 }