diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-12-13 18:01:21 +1100 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 14:53:55 +1100 |
commit | cc5d0189b9ba95260857a5018a1c2fef90008507 (patch) | |
tree | 1202c94b6b3cb81a96d0a0e54424cad10eef68bb /arch/powerpc/platforms/powermac/nvram.c | |
parent | 9cf84d7c97992dbe5360b241327341c07ce30fc9 (diff) | |
download | linux-stable-cc5d0189b9ba95260857a5018a1c2fef90008507.tar.gz linux-stable-cc5d0189b9ba95260857a5018a1c2fef90008507.tar.bz2 linux-stable-cc5d0189b9ba95260857a5018a1c2fef90008507.zip |
[PATCH] powerpc: Remove device_node addrs/n_addr
The pre-parsed addrs/n_addrs fields in struct device_node are finally
gone. Remove the dodgy heuristics that did that parsing at boot and
remove the fields themselves since we now have a good replacement with
the new OF parsing code. This patch also fixes a bunch of drivers to use
the new code instead, so that at least pmac32, pseries, iseries and g5
defconfigs build.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/powermac/nvram.c')
-rw-r--r-- | arch/powerpc/platforms/powermac/nvram.c | 52 |
1 files changed, 34 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c index 59e0e51cf663..3ebd045a3350 100644 --- a/arch/powerpc/platforms/powermac/nvram.c +++ b/arch/powerpc/platforms/powermac/nvram.c @@ -514,7 +514,7 @@ static void core99_nvram_sync(void) #endif } -static int __init core99_nvram_setup(struct device_node *dp) +static int __init core99_nvram_setup(struct device_node *dp, unsigned long addr) { int i; u32 gen_bank0, gen_bank1; @@ -528,7 +528,7 @@ static int __init core99_nvram_setup(struct device_node *dp) printk(KERN_ERR "nvram: can't allocate ram image\n"); return -ENOMEM; } - nvram_data = ioremap(dp->addrs[0].address, NVRAM_SIZE*2); + nvram_data = ioremap(addr, NVRAM_SIZE*2); nvram_naddrs = 1; /* Make sure we get the correct case */ DBG("nvram: Checking bank 0...\n"); @@ -570,34 +570,48 @@ static int __init core99_nvram_setup(struct device_node *dp) int __init pmac_nvram_init(void) { struct device_node *dp; + struct resource r1, r2; + unsigned int s1 = 0, s2 = 0; int err = 0; nvram_naddrs = 0; - dp = find_devices("nvram"); + dp = of_find_node_by_name(NULL, "nvram"); if (dp == NULL) { printk(KERN_ERR "Can't find NVRAM device\n"); return -ENODEV; } - nvram_naddrs = dp->n_addrs; + + /* Try to obtain an address */ + if (of_address_to_resource(dp, 0, &r1) == 0) { + nvram_naddrs = 1; + s1 = (r1.end - r1.start) + 1; + if (of_address_to_resource(dp, 1, &r2) == 0) { + nvram_naddrs = 2; + s2 = (r2.end - r2.start) + 1; + } + } + is_core_99 = device_is_compatible(dp, "nvram,flash"); - if (is_core_99) - err = core99_nvram_setup(dp); + if (is_core_99) { + err = core99_nvram_setup(dp, r1.start); + goto bail; + } + #ifdef CONFIG_PPC32 - else if (_machine == _MACH_chrp && nvram_naddrs == 1) { - nvram_data = ioremap(dp->addrs[0].address + isa_mem_base, - dp->addrs[0].size); + if (_machine == _MACH_chrp && nvram_naddrs == 1) { + nvram_data = ioremap(r1.start, s1); nvram_mult = 1; ppc_md.nvram_read_val = direct_nvram_read_byte; ppc_md.nvram_write_val = direct_nvram_write_byte; } else if (nvram_naddrs == 1) { - nvram_data = ioremap(dp->addrs[0].address, dp->addrs[0].size); - nvram_mult = (dp->addrs[0].size + NVRAM_SIZE - 1) / NVRAM_SIZE; + 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; } else if (nvram_naddrs == 2) { - nvram_addr = ioremap(dp->addrs[0].address, dp->addrs[0].size); - nvram_data = ioremap(dp->addrs[1].address, dp->addrs[1].size); + 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; } else if (nvram_naddrs == 0 && sys_ctrler == SYS_CTRLER_PMU) { @@ -606,13 +620,15 @@ int __init pmac_nvram_init(void) ppc_md.nvram_read_val = pmu_nvram_read_byte; ppc_md.nvram_write_val = pmu_nvram_write_byte; #endif /* CONFIG_ADB_PMU */ - } -#endif - else { + } else { printk(KERN_ERR "Incompatible type of NVRAM\n"); - return -ENXIO; + err = -ENXIO; } - lookup_partitions(); +#endif /* CONFIG_PPC32 */ +bail: + of_node_put(dp); + if (err == 0) + lookup_partitions(); return err; } |