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authorMichael Ellerman <mpe@ellerman.id.au>2022-09-30 11:27:07 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-09-30 11:35:53 +0300
commit541229707970ff2ad3f7705b1dbd025d7cc9bc48 (patch)
tree69f5b9bbb3fa7cf7e918789beac8e823f73f292c /arch/powerpc
parent48b7019b6abd029d3800620bb53f0ae3ca052441 (diff)
downloadlinux-541229707970ff2ad3f7705b1dbd025d7cc9bc48.tar.xz
powerpc: Add device-tree model to the hardware description
Add the model of the machine we're on to the hardware description, which is printed at boot and in case of an oops. eg: Hardware name: IBM,8247-22L Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220930082709.55830-4-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/prom.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 83fc72202838..1eed87d954ba 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -715,6 +715,23 @@ static void __init tm_init(void)
static void tm_init(void) { }
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
+static int __init
+early_init_dt_scan_model(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ const char *prop;
+
+ if (depth != 0)
+ return 0;
+
+ prop = of_get_flat_dt_prop(node, "model", NULL);
+ if (prop)
+ seq_buf_printf(&ppc_hw_desc, "%s ", prop);
+
+ /* break now */
+ return 1;
+}
+
#ifdef CONFIG_PPC64
static void __init save_fscr_to_task(void)
{
@@ -743,6 +760,8 @@ void __init early_init_devtree(void *params)
if (!early_init_dt_verify(params))
panic("BUG: Failed verifying flat device tree, bad version?");
+ of_scan_flat_dt(early_init_dt_scan_model, NULL);
+
#ifdef CONFIG_PPC_RTAS
/* Some machines might need RTAS info for debugging, grab it now. */
of_scan_flat_dt(early_init_dt_scan_rtas, NULL);