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| author | Michael Ellerman <mpe@ellerman.id.au> | 2022-09-30 18:27:07 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-09-30 18:35:53 +1000 |
| commit | 541229707970ff2ad3f7705b1dbd025d7cc9bc48 (patch) | |
| tree | 69f5b9bbb3fa7cf7e918789beac8e823f73f292c | |
| parent | 48b7019b6abd029d3800620bb53f0ae3ca052441 (diff) | |
| download | lwn-541229707970ff2ad3f7705b1dbd025d7cc9bc48.tar.gz lwn-541229707970ff2ad3f7705b1dbd025d7cc9bc48.zip | |
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
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 19 |
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); |