diff options
Diffstat (limited to 'arch/powerpc/platforms/powermac/nvram.c')
| -rw-r--r-- | arch/powerpc/platforms/powermac/nvram.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c index 014d06e6d46b..a112d26185a0 100644 --- a/arch/powerpc/platforms/powermac/nvram.c +++ b/arch/powerpc/platforms/powermac/nvram.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2002 Benjamin Herrenschmidt (benh@kernel.crashing.org) * - * 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. - * * Todo: - add support for the OF persistent properties */ #include <linux/export.h> @@ -18,12 +14,12 @@ #include <linux/errno.h> #include <linux/adb.h> #include <linux/pmu.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/completion.h> #include <linux/spinlock.h> +#include <linux/of_address.h> #include <asm/sections.h> #include <asm/io.h> -#include <asm/prom.h> #include <asm/machdep.h> #include <asm/nvram.h> @@ -59,7 +55,7 @@ struct chrp_header { u8 cksum; u16 len; char name[12]; - u8 data[0]; + u8 data[]; }; struct core99_header { @@ -75,7 +71,7 @@ struct core99_header { static int nvram_naddrs; static volatile unsigned char __iomem *nvram_data; static int is_core_99; -static int core99_bank = 0; +static int core99_bank; static int nvram_partitions[3]; // XXX Turn that into a sem static DEFINE_RAW_SPINLOCK(nv_lock); @@ -147,6 +143,11 @@ static ssize_t core99_nvram_size(void) static volatile unsigned char __iomem *nvram_addr; static int nvram_mult; +static ssize_t ppc32_nvram_size(void) +{ + return NVRAM_SIZE; +} + static unsigned char direct_nvram_read_byte(int addr) { return in_8(&nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult]); @@ -257,7 +258,7 @@ static u32 core99_calc_adler(u8 *buffer) return (high << 16) | low; } -static u32 core99_check(u8* datas) +static u32 __init core99_check(u8 *datas) { struct core99_header* hdr99 = (struct core99_header*)datas; @@ -513,11 +514,7 @@ static int __init core99_nvram_setup(struct device_node *dp, unsigned long addr) printk(KERN_ERR "nvram: no address\n"); return -EINVAL; } - nvram_image = alloc_bootmem(NVRAM_SIZE); - if (nvram_image == NULL) { - printk(KERN_ERR "nvram: can't allocate ram image\n"); - return -ENOMEM; - } + nvram_image = memblock_alloc_or_panic(NVRAM_SIZE, SMP_CACHE_BYTES); nvram_data = ioremap(addr, NVRAM_SIZE*2); nvram_naddrs = 1; /* Make sure we get the correct case */ @@ -594,21 +591,25 @@ int __init pmac_nvram_init(void) nvram_mult = 1; ppc_md.nvram_read_val = direct_nvram_read_byte; ppc_md.nvram_write_val = direct_nvram_write_byte; + ppc_md.nvram_size = ppc32_nvram_size; } else if (nvram_naddrs == 1) { nvram_data = ioremap(r1.start, s1); nvram_mult = (s1 + NVRAM_SIZE - 1) / NVRAM_SIZE; ppc_md.nvram_read_val = direct_nvram_read_byte; ppc_md.nvram_write_val = direct_nvram_write_byte; + ppc_md.nvram_size = ppc32_nvram_size; } else if (nvram_naddrs == 2) { nvram_addr = ioremap(r1.start, s1); nvram_data = ioremap(r2.start, s2); ppc_md.nvram_read_val = indirect_nvram_read_byte; ppc_md.nvram_write_val = indirect_nvram_write_byte; + ppc_md.nvram_size = ppc32_nvram_size; } else if (nvram_naddrs == 0 && sys_ctrler == SYS_CTRLER_PMU) { #ifdef CONFIG_ADB_PMU nvram_naddrs = -1; ppc_md.nvram_read_val = pmu_nvram_read_byte; ppc_md.nvram_write_val = pmu_nvram_write_byte; + ppc_md.nvram_size = ppc32_nvram_size; #endif /* CONFIG_ADB_PMU */ } else { printk(KERN_ERR "Incompatible type of NVRAM\n"); |