lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] powerpc: Remove device_node addrs/n_addr

Browse Source 
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>
This commit is contained in:
Benjamin Herrenschmidt
2005-12-13 18:01:21 +11:00
committed by Paul Mackerras
parent 9cf84d7c97
commit cc5d0189b9
31 changed files with 815 additions and 1128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
arch/powerpc/kernel/rtas_pci.c
View File

@ -188,39 +188,19 @@ int is_python(struct device_node *dev)
return 0;
}
static int get_phb_reg_prop(struct device_node *dev,
unsigned int addr_size_words,
struct reg_property64 *reg)
static void python_countermeasures(struct device_node *dev)
{
unsigned int *ui_ptr = NULL, len;
/* Found a PHB, now figure out where his registers are mapped. */
ui_ptr = (unsigned int *)get_property(dev, "reg", &len);
if (ui_ptr == NULL)
return 1;
if (addr_size_words == 1) {
reg->address = ((struct reg_property32 *)ui_ptr)->address;
reg->size = ((struct reg_property32 *)ui_ptr)->size;
} else {
*reg = *((struct reg_property64 *)ui_ptr);
}
return 0;
}
static void python_countermeasures(struct device_node *dev,
unsigned int addr_size_words)
{
struct reg_property64 reg_struct;
struct resource registers;
void __iomem *chip_regs;
volatile u32 val;
if (get_phb_reg_prop(dev, addr_size_words, &reg_struct))
if (of_address_to_resource(dev, 0, &registers)) {
printk(KERN_ERR "Can't get address for Python workarounds !\n");
return;
}
/* Python's register file is 1 MB in size. */
chip_regs = ioremap(reg_struct.address & ~(0xfffffUL), 0x100000);
chip_regs = ioremap(registers.start & ~(0xfffffUL), 0x100000);
/*
* Firmware doesn't always clear this bit which is critical
@ -301,11 +281,10 @@ static int phb_set_bus_ranges(struct device_node *dev,
}
static int __devinit setup_phb(struct device_node *dev,
struct pci_controller *phb,
unsigned int addr_size_words)
struct pci_controller *phb)
{
if (is_python(dev))
python_countermeasures(dev, addr_size_words);
python_countermeasures(dev);
if (phb_set_bus_ranges(dev, phb))
return 1;
@ -320,8 +299,8 @@ unsigned long __init find_and_init_phbs(void)
{
struct device_node *node;
struct pci_controller *phb;
unsigned int root_size_cells = 0;
unsigned int index;
unsigned int root_size_cells = 0;
unsigned int *opprop = NULL;
struct device_node *root = of_find_node_by_path("/");
@ -343,10 +322,11 @@ unsigned long __init find_and_init_phbs(void)
phb = pcibios_alloc_controller(node);
if (!phb)
continue;
setup_phb(node, phb, root_size_cells);
setup_phb(node, phb);
pci_process_bridge_OF_ranges(phb, node, 0);
pci_setup_phb_io(phb, index == 0);
#ifdef CONFIG_PPC_PSERIES
/* XXX This code need serious fixing ... --BenH */
if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) {
int addr = root_size_cells * (index + 2) - 1;
mpic_assign_isu(pSeries_mpic, index, opprop[addr]);
@ -381,22 +361,17 @@ unsigned long __init find_and_init_phbs(void)
struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
{
struct device_node *root = of_find_node_by_path("/");
unsigned int root_size_cells = 0;
struct pci_controller *phb;
int primary;
root_size_cells = prom_n_size_cells(root);
primary = list_empty(&hose_list);
phb = pcibios_alloc_controller(dn);
if (!phb)
return NULL;
setup_phb(dn, phb, root_size_cells);
setup_phb(dn, phb);
pci_process_bridge_OF_ranges(phb, dn, primary);
pci_setup_phb_io_dynamic(phb, primary);
of_node_put(root);
pci_devs_phb_init_dynamic(phb);
scan_phb(phb);