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authorFlorian Fainelli <florian@openwrt.org>2012-07-24 16:33:10 +0200
committerRalf Baechle <ralf@linux-mips.org>2012-07-24 16:33:10 +0200
commitb73ab84199a9760cd99bd7329e58b6a8ce2eb36f (patch)
treef857cd20bc3e95e53714a4c536d8b9f5de00ed2d /arch/mips
parent8aecfe946275d23a207c73dbaf7a7c7a8a80be24 (diff)
MIPS: BCM63XX: add RNG driver platform_device stub
Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: mpm@selenic.com Cc: herbert@gondor.apana.org.au Patchwork: https://patchwork.linux-mips.org/patch/3325/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/bcm63xx/Makefile4
-rw-r--r--arch/mips/bcm63xx/dev-rng.c40
2 files changed, 42 insertions, 2 deletions
diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index 4049cd51fd1..349b2061d2e 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,6 +1,6 @@
obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
- dev-dsp.o dev-enet.o dev-pcmcia.o dev-spi.o dev-uart.o \
- dev-wdt.o
+ dev-dsp.o dev-enet.o dev-pcmcia.o dev-rng.o dev-spi.o \
+ dev-uart.o dev-wdt.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-y += boards/
diff --git a/arch/mips/bcm63xx/dev-rng.c b/arch/mips/bcm63xx/dev-rng.c
new file mode 100644
index 00000000000..d277b4dc6c6
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-rng.c
@@ -0,0 +1,40 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 Florian Fainelli <florian@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+
+static struct resource rng_resources[] = {
+ {
+ .start = -1, /* filled at runtime */
+ .end = -1, /* filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device bcm63xx_rng_device = {
+ .name = "bcm63xx-rng",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(rng_resources),
+ .resource = rng_resources,
+};
+
+int __init bcm63xx_rng_register(void)
+{
+ if (!BCMCPU_IS_6368())
+ return -ENODEV;
+
+ rng_resources[0].start = bcm63xx_regset_address(RSET_RNG);
+ rng_resources[0].end = rng_resources[0].start;
+ rng_resources[0].end += RSET_RNG_SIZE - 1;
+
+ return platform_device_register(&bcm63xx_rng_device);
+}
+arch_initcall(bcm63xx_rng_register);