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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>
hifive-unleashed-5.1
Florian Fainelli 2012-07-24 16:33:10 +02:00 committed by Ralf Baechle
parent 8aecfe9462
commit b73ab84199
2 changed files with 42 additions and 2 deletions
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4
arch/mips/bcm63xx/Makefile
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@ -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/

40
arch/mips/bcm63xx/dev-rng.c 100644
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@ -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);