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authorVitaly Wool <vwool@ru.mvista.com>2006-11-20 16:32:39 +0300
committerPaul Mackerras <paulus@samba.org>2006-12-04 20:41:24 +1100
commit28f9ec349ae47c91768b7bc5607db4442c818e11 (patch)
tree548d75d56ffefd80c8c0fc85afd39fad2d3f156f /arch/powerpc/sysdev
parenta5715d6dfc85e002bfad68bb2858cf5a248e2060 (diff)
downloadop-kernel-dev-28f9ec349ae47c91768b7bc5607db4442c818e11.zip
op-kernel-dev-28f9ec349ae47c91768b7bc5607db4442c818e11.tar.gz
[POWERPC] Add of_platform support for ROM devices
This adds support for flash device descriptions to the OF device tree. It's inspired by and partially borrowed from Sergei's patch "[RFC] Adding MTD to device tree.patch". Signed-off-by: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/Makefile1
-rw-r--r--arch/powerpc/sysdev/rom.c31
2 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index bae8746..ee7c6d4 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o
obj-$(CONFIG_FSL_SOC) += fsl_soc.o
obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o
obj-$(CONFIG_QUICC_ENGINE) += qe_lib/
+obj-$(CONFIG_MTD) += rom.o
ifeq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_PPC_I8259) += i8259.o
diff --git a/arch/powerpc/sysdev/rom.c b/arch/powerpc/sysdev/rom.c
new file mode 100644
index 0000000..bf5b3f1
--- /dev/null
+++ b/arch/powerpc/sysdev/rom.c
@@ -0,0 +1,31 @@
+/*
+ * ROM device registration
+ *
+ * (C) 2006 MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/kernel.h>
+#include <asm/of_device.h>
+
+static int __init powerpc_flash_init(void)
+{
+ struct device_node *node = NULL;
+
+ /*
+ * Register all the devices which type is "rom"
+ */
+ while ((node = of_find_node_by_type(node, "rom")) != NULL) {
+ if (node->name == NULL) {
+ printk(KERN_WARNING "powerpc_flash_init: found 'rom' "
+ "device, but with no name, skipping...\n");
+ continue;
+ }
+ of_platform_device_create(node, node->name, NULL);
+ }
+ return 0;
+}
+
+arch_initcall(powerpc_flash_init);
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