diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic/patches-2.6.36/992-mips_of_2.6.37_bp.patch | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/target/linux/generic/patches-2.6.36/992-mips_of_2.6.37_bp.patch b/target/linux/generic/patches-2.6.36/992-mips_of_2.6.37_bp.patch deleted file mode 100644 index 9c16769c7..000000000 --- a/target/linux/generic/patches-2.6.36/992-mips_of_2.6.37_bp.patch +++ /dev/null @@ -1,233 +0,0 @@ -From: Dezhong Diao <dediao@cisco.com> -Date: Wed, 13 Oct 2010 06:52:46 +0000 (-0600) -Subject: of/mips: Add device tree support to MIPS -X-Git-Tag: v2.6.37-rc1~129^2~3 -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=f2ffa5ab74f4dfd598860f96ca37a71c4d0a28a8 - -of/mips: Add device tree support to MIPS - -Add the ability to enable CONFIG_OF on the MIPS architecture. - -Signed-off-by: Dezhong Diao <dediao@cisco.com> -[grant.likely@secretlab.ca: cleared out obsolete hooks, - removed ARCH_HAS_DEVTREE_MEM, - remove __init tags from header file, - removed debugfs support hunk] -[ddaney@linux-mips.org: backed out over aggressive trimming of hooks] -Acked-by: Ralf Baechle <ralf@linux-mips.org> -Tested-by: David Daney <ddaney@caviumnetworks.com> -Signed-off-by: Grant Likely <grant.likely@secretlab.ca> ---- - ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -2146,6 +2146,13 @@ config SECCOMP - - If unsure, say Y. Only embedded should say N here. - -+config USE_OF -+ bool "Flattened Device Tree support" -+ select OF -+ select OF_FLATTREE -+ help -+ Include support for flattened device tree machine descriptions. -+ - endmenu - - config LOCKDEP_SUPPORT ---- a/arch/mips/include/asm/irq.h -+++ b/arch/mips/include/asm/irq.h -@@ -16,6 +16,11 @@ - - #include <irq.h> - -+static inline void irq_dispose_mapping(unsigned int virq) -+{ -+ return; -+} -+ - #ifdef CONFIG_I8259 - static inline int irq_canonicalize(int irq) - { ---- /dev/null -+++ b/arch/mips/include/asm/prom.h -@@ -0,0 +1,35 @@ -+/* -+ * arch/mips/include/asm/prom.h -+ * -+ * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com> -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+#ifndef __ASM_MIPS_PROM_H -+#define __ASM_MIPS_PROM_H -+ -+#ifdef CONFIG_OF -+#include <linux/init.h> -+ -+#include <asm/setup.h> -+#include <asm/irq.h> -+#include <asm/bootinfo.h> -+ -+/* which is compatible with the flattened device tree (FDT) */ -+#define cmd_line arcs_cmdline -+ -+extern int early_init_dt_scan_memory_arch(unsigned long node, -+ const char *uname, int depth, void *data); -+ -+extern int reserve_mem_mach(unsigned long addr, unsigned long size); -+extern void free_mem_mach(unsigned long addr, unsigned long size); -+ -+extern void __init device_tree_init(void); -+#else /* CONFIG_OF */ -+static inline void __init device_tree_init(void) { } -+#endif /* CONFIG_OF */ -+ -+#endif /* _ASM_MIPS_PROM_H */ ---- a/arch/mips/kernel/Makefile -+++ b/arch/mips/kernel/Makefile -@@ -97,6 +97,8 @@ obj-$(CONFIG_EARLY_PRINTK) += early_prin - obj-$(CONFIG_SPINLOCK_TEST) += spinlock_test.o - obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o - -+obj-$(CONFIG_OF) += prom.o -+ - CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi) - - obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT) += 8250-platform.o ---- /dev/null -+++ b/arch/mips/kernel/prom.c -@@ -0,0 +1,112 @@ -+/* -+ * MIPS support for CONFIG_OF device tree support -+ * -+ * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com> -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/errno.h> -+#include <linux/types.h> -+#include <linux/bootmem.h> -+#include <linux/initrd.h> -+#include <linux/debugfs.h> -+#include <linux/of.h> -+#include <linux/of_fdt.h> -+#include <linux/of_irq.h> -+#include <linux/of_platform.h> -+ -+#include <asm/page.h> -+#include <asm/prom.h> -+ -+int __init early_init_dt_scan_memory_arch(unsigned long node, -+ const char *uname, int depth, -+ void *data) -+{ -+ return early_init_dt_scan_memory(node, uname, depth, data); -+} -+ -+void __init early_init_dt_add_memory_arch(u64 base, u64 size) -+{ -+ return add_memory_region(base, size, BOOT_MEM_RAM); -+} -+ -+int __init reserve_mem_mach(unsigned long addr, unsigned long size) -+{ -+ return reserve_bootmem(addr, size, BOOTMEM_DEFAULT); -+} -+ -+void __init free_mem_mach(unsigned long addr, unsigned long size) -+{ -+ return free_bootmem(addr, size); -+} -+ -+u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align) -+{ -+ return virt_to_phys( -+ __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)) -+ ); -+} -+ -+#ifdef CONFIG_BLK_DEV_INITRD -+void __init early_init_dt_setup_initrd_arch(unsigned long start, -+ unsigned long end) -+{ -+ initrd_start = (unsigned long)__va(start); -+ initrd_end = (unsigned long)__va(end); -+ initrd_below_start_ok = 1; -+} -+#endif -+ -+/* -+ * 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[0]; -+} -+EXPORT_SYMBOL_GPL(irq_create_of_mapping); -+ -+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) -+ return; -+ -+ base = virt_to_phys((void *)initial_boot_params); -+ size = initial_boot_params->totalsize; -+ -+ /* Before we do anything, lets reserve the dt blob */ -+ reserve_mem_mach(base, size); -+ -+ unflatten_device_tree(); -+ -+ /* free the space reserved for the dt blob */ -+ free_mem_mach(base, size); -+} ---- a/arch/mips/kernel/setup.c -+++ b/arch/mips/kernel/setup.c -@@ -31,6 +31,7 @@ - #include <asm/setup.h> - #include <asm/smp-ops.h> - #include <asm/system.h> -+#include <asm/prom.h> - - struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly; - -@@ -487,6 +488,7 @@ static void __init arch_mem_init(char ** - } - - bootmem_init(); -+ device_tree_init(); - sparse_init(); - paging_init(); - } |