diff options
author | Paul Mackerras <paulus@samba.org> | 2006-03-28 10:22:10 +1100 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-03-28 10:22:10 +1100 |
commit | 0a26b1364f14852bc9a51db0ca63c5250c775627 (patch) | |
tree | 83422473cb4bf4c450012cded06288a0dc6abedf /arch/ppc/platforms/chrp_nvram.c | |
parent | ff2e6d7e27cf1f757ab0d97e1a9e46de47152a0e (diff) |
ppc: Remove CHRP, POWER3 and POWER4 support from arch/ppc
32-bit CHRP machines are now supported only in arch/powerpc, as are
all 64-bit PowerPC processors. This means that we don't use
Open Firmware on any platform in arch/ppc any more.
This makes PReP support a single-platform option like every other
platform support option in arch/ppc now, thus CONFIG_PPC_MULTIPLATFORM
is gone from arch/ppc. CONFIG_PPC_PREP is the option that selects
PReP support and is generally what has replaced
CONFIG_PPC_MULTIPLATFORM within arch/ppc.
_machine is all but dead now, being #defined to 0.
Updated Makefiles, comments and Kconfig options generally to reflect
these changes.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/platforms/chrp_nvram.c')
-rw-r--r-- | arch/ppc/platforms/chrp_nvram.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/arch/ppc/platforms/chrp_nvram.c b/arch/ppc/platforms/chrp_nvram.c deleted file mode 100644 index 465ba9b090e..00000000000 --- a/arch/ppc/platforms/chrp_nvram.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * c 2001 PPC 64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * /dev/nvram driver for PPC - * - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <asm/uaccess.h> -#include <asm/prom.h> -#include <asm/machdep.h> - -static unsigned int nvram_size; -static unsigned char nvram_buf[4]; -static DEFINE_SPINLOCK(nvram_lock); - -static unsigned char chrp_nvram_read(int addr) -{ - unsigned long done, flags; - unsigned char ret; - - if (addr >= nvram_size) { - printk(KERN_DEBUG "%s: read addr %d > nvram_size %u\n", - current->comm, addr, nvram_size); - return 0xff; - } - spin_lock_irqsave(&nvram_lock, flags); - if ((call_rtas("nvram-fetch", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done) - ret = 0xff; - else - ret = nvram_buf[0]; - spin_unlock_irqrestore(&nvram_lock, flags); - - return ret; -} - -static void chrp_nvram_write(int addr, unsigned char val) -{ - unsigned long done, flags; - - if (addr >= nvram_size) { - printk(KERN_DEBUG "%s: write addr %d > nvram_size %u\n", - current->comm, addr, nvram_size); - return; - } - spin_lock_irqsave(&nvram_lock, flags); - nvram_buf[0] = val; - if ((call_rtas("nvram-store", 3, 2, &done, addr, __pa(nvram_buf), 1) != 0) || 1 != done) - printk(KERN_DEBUG "rtas IO error storing 0x%02x at %d", val, addr); - spin_unlock_irqrestore(&nvram_lock, flags); -} - -void __init chrp_nvram_init(void) -{ - struct device_node *nvram; - unsigned int *nbytes_p, proplen; - - nvram = of_find_node_by_type(NULL, "nvram"); - if (nvram == NULL) - return; - - nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen); - if (nbytes_p == NULL || proplen != sizeof(unsigned int)) - return; - - nvram_size = *nbytes_p; - - printk(KERN_INFO "CHRP nvram contains %u bytes\n", nvram_size); - of_node_put(nvram); - - ppc_md.nvram_read_val = chrp_nvram_read; - ppc_md.nvram_write_val = chrp_nvram_write; - - return; -} |