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67 lines
2.0 KiB
Diff
67 lines
2.0 KiB
Diff
From cfcc8526e97bdcbfcbf945246b878262389b8842 Mon Sep 17 00:00:00 2001
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From: Florian Fainelli <florian@openwrt.org>
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Date: Wed, 25 Jan 2012 17:39:59 +0100
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Subject: [PATCH 17/63] MIPS: BCM63XX: add RNG driver platform_device stub
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Signed-off-by: Florian Fainelli <florian@openwrt.org>
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---
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arch/mips/bcm63xx/Makefile | 4 ++--
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arch/mips/bcm63xx/dev-trng.c | 40 ++++++++++++++++++++++++++++++++++++++++
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2 files changed, 42 insertions(+), 2 deletions(-)
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create mode 100644 arch/mips/bcm63xx/dev-trng.c
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--- a/arch/mips/bcm63xx/Makefile
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+++ b/arch/mips/bcm63xx/Makefile
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@@ -1,6 +1,6 @@
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obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
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- dev-dsp.o dev-enet.o dev-pcmcia.o dev-spi.o dev-uart.o \
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- dev-wdt.o
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+ dev-dsp.o dev-enet.o dev-pcmcia.o dev-spi.o dev-trng.o \
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+ dev-uart.o dev-wdt.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-y += boards/
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--- /dev/null
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+++ b/arch/mips/bcm63xx/dev-trng.c
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@@ -0,0 +1,40 @@
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+/*
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+ * This file is subject to the terms and conditions of the GNU General Public
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+ * License. See the file "COPYING" in the main directory of this archive
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+ * for more details.
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+ *
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+ * Copyright (C) 2011 Florian Fainelli <florian@openwrt.org>
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+ */
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+
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+#include <linux/init.h>
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+#include <linux/kernel.h>
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+#include <linux/platform_device.h>
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+#include <bcm63xx_cpu.h>
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+
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+static struct resource trng_resources[] = {
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+ {
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+ .start = -1, /* filled at runtime */
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+ .end = -1, /* filled at runtime */
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+ .flags = IORESOURCE_MEM,
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+ },
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+};
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+
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+static struct platform_device bcm63xx_trng_device = {
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+ .name = "bcm63xx-trng",
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+ .id = -1,
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+ .num_resources = ARRAY_SIZE(trng_resources),
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+ .resource = trng_resources,
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+};
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+
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+int __init bcm63xx_trng_register(void)
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+{
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+ if (!BCMCPU_IS_6368())
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+ return -ENODEV;
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+
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+ trng_resources[0].start = bcm63xx_regset_address(RSET_TRNG);
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+ trng_resources[0].end = trng_resources[0].start;
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+ trng_resources[0].end += RSET_TRNG_SIZE - 1;
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+
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+ return platform_device_register(&bcm63xx_trng_device);
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+}
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+arch_initcall(bcm63xx_trng_register);
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