From 30437b3e743f33e9b68f813ca24e547aa9fcf7d7 Mon Sep 17 00:00:00 2001 From: David Gibson Date: Wed, 28 Feb 2007 14:12:29 +1100 Subject: [POWERPC] Automatically lmb_reserve() initrd At present, when an initrd is passed to the kernel used flat device tree properties, the memory the initrd occupies must also be reserved in the flat tree's reserve map, or the kernel may overwrite it. That makes life more complicated than it could be for the bootwrapper. This patch makes the kernel automatically reserve the initrd's space. That in turn requires parsing the initrd parameters earlier than they are currently, in early_init_dt_scan_chosen() instead of check_for_initrd(). Signed-off-by: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 22 ++-------------------- 1 file changed, 2 insertions(+), 20 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 89cfaf49d3de..d050d9a61bd4 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -304,26 +304,8 @@ struct seq_operations cpuinfo_op = { void __init check_for_initrd(void) { #ifdef CONFIG_BLK_DEV_INITRD - const unsigned int *prop; - int len; - - DBG(" -> check_for_initrd()\n"); - - if (of_chosen) { - prop = get_property(of_chosen, "linux,initrd-start", &len); - if (prop != NULL) { - initrd_start = (unsigned long) - __va(of_read_ulong(prop, len / 4)); - prop = get_property(of_chosen, - "linux,initrd-end", &len); - if (prop != NULL) { - initrd_end = (unsigned long) - __va(of_read_ulong(prop, len / 4)); - initrd_below_start_ok = 1; - } else - initrd_start = 0; - } - } + DBG(" -> check_for_initrd() initrd_start=0x%lx initrd_end=0x%lx\n", + initrd_start, initrd_end); /* If we were passed an initrd, set the ROOT_DEV properly if the values * look sensible. If not, clear initrd reference. -- cgit v1.2.2 From 8545cd201134860b1eb72578419f5cbd4c0789c0 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Fri, 23 Mar 2007 01:11:59 +0100 Subject: [POWERPC] Remove unused inclusion of linux/ide.h Remove unneeded inclusion of linux/ide.h It does not compile with CONFIG_BLOCK=n. Remove asm/ide.h from ksyms file, it gets included earlier via linux/ide.h. Compile tested with all defconfig files. Signed-off-by: Olaf Hering Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index d050d9a61bd4..d44db58e8a81 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.2 From a8bda5dd4f99d6469f3c0dc362db3cce8a4d6416 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 3 Apr 2007 10:56:50 +1000 Subject: [POWERPC] Rename prom_n_addr_cells to of_n_addr_cells This is more consistent and gets us closer to the Sparc code. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index d44db58e8a81..f7ef5a97c0ea 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -379,7 +379,7 @@ void __init smp_setup_cpu_maps(void) int num_addr_cell, num_size_cell, maxcpus; const unsigned int *ireg; - num_addr_cell = prom_n_addr_cells(dn); + num_addr_cell = of_n_addr_cells(dn); num_size_cell = prom_n_size_cells(dn); ireg = get_property(dn, "ibm,lrdr-capacity", NULL); -- cgit v1.2.2 From 9213feea6e197f8507ec855337798cc3388f5570 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 3 Apr 2007 10:57:48 +1000 Subject: [POWERPC] Rename prom_n_size_cells to of_n_size_cells This is more consistent and gets us closer to the Sparc code. Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index f7ef5a97c0ea..640ff0d8f83c 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -380,7 +380,7 @@ void __init smp_setup_cpu_maps(void) const unsigned int *ireg; num_addr_cell = of_n_addr_cells(dn); - num_size_cell = prom_n_size_cells(dn); + num_size_cell = of_n_size_cells(dn); ireg = get_property(dn, "ibm,lrdr-capacity", NULL); -- cgit v1.2.2 From e2eb63927bfcb54232163bfec32440246fd44457 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 3 Apr 2007 22:26:41 +1000 Subject: [POWERPC] Rename get_property to of_get_property: arch/powerpc Signed-off-by: Stephen Rothwell Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 640ff0d8f83c..3c8847b647fa 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -352,11 +352,12 @@ void __init smp_setup_cpu_maps(void) const int *intserv; int j, len = sizeof(u32), nthreads = 1; - intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len); + intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", + &len); if (intserv) nthreads = len / sizeof(int); else { - intserv = get_property(dn, "reg", NULL); + intserv = of_get_property(dn, "reg", NULL); if (!intserv) intserv = &cpu; /* assume logical == phys */ } @@ -382,7 +383,7 @@ void __init smp_setup_cpu_maps(void) num_addr_cell = of_n_addr_cells(dn); num_size_cell = of_n_size_cells(dn); - ireg = get_property(dn, "ibm,lrdr-capacity", NULL); + ireg = of_get_property(dn, "ibm,lrdr-capacity", NULL); if (!ireg) goto out; -- cgit v1.2.2 From 8d8a0241eb019ce9648a77b55f9f76a834207cbb Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Thu, 26 Apr 2007 06:36:56 +1000 Subject: [POWERPC] Generic check_legacy_ioport check_legacy_ioport makes only sense on PREP, CHRP and pSeries. They may have an isa node with PS/2, parport, floppy and serial ports. Remove the check_legacy_ioport call from ppc_md, it's not needed anymore. Hardware capabilities come from the device-tree. Signed-off-by: Olaf Hering Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/setup-common.c | 34 +++++++++++++++++++++++++++++++--- 1 file changed, 31 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 3c8847b647fa..370803722e47 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -478,11 +478,39 @@ void probe_machine(void) printk(KERN_INFO "Using %s machine description\n", ppc_md.name); } +/* Match a class of boards, not a specific device configuration. */ int check_legacy_ioport(unsigned long base_port) { - if (ppc_md.check_legacy_ioport == NULL) - return 0; - return ppc_md.check_legacy_ioport(base_port); + struct device_node *parent, *np = NULL; + int ret = -ENODEV; + + switch(base_port) { + case I8042_DATA_REG: + np = of_find_node_by_type(NULL, "8042"); + break; + case FDC_BASE: /* FDC1 */ + np = of_find_node_by_type(NULL, "fdc"); + break; +#ifdef CONFIG_PPC_PREP + case _PIDXR: + case _PNPWRP: + case PNPBIOS_BASE: + /* implement me */ +#endif + default: + /* ipmi is supposed to fail here */ + break; + } + if (!np) + return ret; + parent = of_get_parent(np); + if (parent) { + if (strcmp(parent->type, "isa") == 0) + ret = 0; + of_node_put(parent); + } + of_node_put(np); + return ret; } EXPORT_SYMBOL(check_legacy_ioport); -- cgit v1.2.2