From 79fed26f65c22e0d67c9523f7a374f0585bd2803 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 31 Jan 2012 15:12:24 +0100 Subject: [PATCH 5/6] MIPS: BCM63XX: add RNG driver platform_device stub Signed-off-by: Florian Fainelli 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 --- arch/mips/bcm63xx/Makefile | 4 ++-- arch/mips/bcm63xx/dev-rng.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+), 2 deletions(-) create mode 100644 arch/mips/bcm63xx/dev-rng.c --- 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/ --- /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 + */ + +#include +#include +#include +#include + +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);