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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/mips/fw/arc/init.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/fw/arc/init.c')
-rw-r--r-- | arch/mips/fw/arc/init.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c new file mode 100644 index 000000000..f9d1dea9b --- /dev/null +++ b/arch/mips/fw/arc/init.c @@ -0,0 +1,51 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * PROM library initialisation code. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + */ +#include <linux/init.h> +#include <linux/kernel.h> + +#include <asm/bootinfo.h> +#include <asm/sgialib.h> +#include <asm/smp-ops.h> + +#undef DEBUG_PROM_INIT + +/* Master romvec interface. */ +struct linux_romvec *romvec; + +#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32) +/* stack for calling 32bit ARC prom */ +u64 o32_stk[4096]; +#endif + +void __init prom_init(void) +{ + PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK; + + romvec = ROMVECTOR; + + if (pb->magic != 0x53435241) { + printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n", + (unsigned long) pb->magic); + while(1) + ; + } + + prom_init_cmdline(fw_arg0, (LONG *)fw_arg1); + prom_identify_arch(); + printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n", + pb->ver, pb->rev); + prom_meminit(); + +#ifdef DEBUG_PROM_INIT + pr_info("Press a key to reboot\n"); + ArcRead(0, &c, 1, &cnt); + ArcEnterInteractiveMode(); +#endif +} |