On 05/26/2011 06:58 PM, Grant Likely wrote:
On Fri, May 20, 2011 at 03:25:41PM -0700, David Daney wrote:
This code is not common enough to be in a shared file. It is also not
used by any existing boards, so just remove it.
Signed-off-by: David Daney<email@example.com>
arch/mips/kernel/prom.c | 49 -----------------------------------------------
1 files changed, 0 insertions(+), 49 deletions(-)
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index a19811e9..a07b6f1 100644
@@ -59,52 +59,3 @@ void __init early_init_dt_setup_initrd_arch(unsigned long
initrd_below_start_ok = 1;
- * irq_create_of_mapping - Hook to resolve OF irq specifier into a Linux irq#
- * Currently the mapping mechanism is trivial; simple flat hwirq numbers are
- * mapped 1:1 onto Linux irq numbers. Cascaded irq controllers are not
- * supported.
-unsigned int irq_create_of_mapping(struct device_node *controller,
- const u32 *intspec, unsigned int intsize)
- return intspec;
In $NEXT_KERNEL+1 irq_create_of_mapping will be replaced by common
infrastructure code after irq_domain is merged, so this will become
Yes, I saw your patch. I will be tracking that as it gets merged.
-void __init early_init_devtree(void *params)
- /* Setup flat device-tree pointer */
- initial_boot_params = params;
- /* Retrieve various informations from the /chosen node of the
- * device-tree, including the platform type, initrd location and
- * size, and more ...
- of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
- /* Scan memory nodes */
- of_scan_flat_dt(early_init_dt_scan_root, NULL);
- of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
-void __init device_tree_init(void)
- unsigned long base, size;
- if (!initial_boot_params)
- base = virt_to_phys((void *)initial_boot_params);
- size = be32_to_cpu(initial_boot_params->totalsize);
- /* Before we do anything, lets reserve the dt blob */
- reserve_mem_mach(base, size);
- /* free the space reserved for the dt blob */
- free_mem_mach(base, size);
I'm a little concerned that the MIPS platforms are not sharing the
same DT init code. This isn't really something that should need to be
For better or worse, the Octeon kernel is booted with a protocol
completely different than any other MIPS board. So there has to be some
custom code to find and initialize the device tree.
For boards that boot with the u-boot 'bootm' protocol, I think we need
to pass the device tree in the environment like other architectures do.
The bootm code could, I think, be made common to all MIPS ports.