Commit 54122970 authored by Michael Ellerman's avatar Michael Ellerman
Browse files

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: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930082709.55830-4-mpe@ellerman.id.au
parent 48b7019b

arch/powerpc/kernel/prom.c

+19 −0
Original line number Diff line number Diff line
@@ -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);