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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2022-09-30 18:27:08 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-09-30 18:35:53 +1000 |
| commit | 37576cb0961fe9d3318c17e4e4bc5ecebf38e9bb (patch) | |
| tree | fa498b1bd6a0252e04be4cb247c6a4d6d40d30b3 /arch/powerpc | |
| parent | powerpc: Add device-tree model to the hardware description (diff) | |
| download | linux-dev-37576cb0961fe9d3318c17e4e4bc5ecebf38e9bb.tar.xz linux-dev-37576cb0961fe9d3318c17e4e4bc5ecebf38e9bb.zip | |
powerpc/powernv: Add opal details to the hardware description
Add OPAL version details to the hardware description, which is printed
at boot and in case of an oops.
eg: Hardware name: ... opal:v6.2
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930082709.55830-5-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index dac545aa0308..61ab2d38ff4b 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -17,6 +17,7 @@ #include <linux/console.h> #include <linux/delay.h> #include <linux/irq.h> +#include <linux/seq_buf.h> #include <linux/seq_file.h> #include <linux/of.h> #include <linux/of_fdt.h> @@ -207,8 +208,29 @@ static void __init pnv_setup_arch(void) pnv_rng_init(); } +static void __init pnv_add_hw_description(void) +{ + struct device_node *dn; + const char *s; + + dn = of_find_node_by_path("/ibm,opal/firmware"); + if (!dn) + return; + + if (of_property_read_string(dn, "version", &s) == 0 || + of_property_read_string(dn, "git-id", &s) == 0) + seq_buf_printf(&ppc_hw_desc, "opal:%s ", s); + + if (of_property_read_string(dn, "mi-version", &s) == 0) + seq_buf_printf(&ppc_hw_desc, "mi:%s ", s); + + of_node_put(dn); +} + static void __init pnv_init(void) { + pnv_add_hw_description(); + /* * Initialize the LPC bus now so that legacy serial * ports can be found on it |