1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
From cfcc8526e97bdcbfcbf945246b878262389b8842 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Wed, 25 Jan 2012 17:39:59 +0100
Subject: [PATCH 17/63] MIPS: BCM63XX: add RNG driver platform_device stub
Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
arch/mips/bcm63xx/Makefile | 4 ++--
arch/mips/bcm63xx/dev-trng.c | 40 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+), 2 deletions(-)
create mode 100644 arch/mips/bcm63xx/dev-trng.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-spi.o dev-trng.o \
+ dev-uart.o dev-wdt.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-y += boards/
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-trng.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 trng_resources[] = {
+ {
+ .start = -1, /* filled at runtime */
+ .end = -1, /* filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device bcm63xx_trng_device = {
+ .name = "bcm63xx-trng",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(trng_resources),
+ .resource = trng_resources,
+};
+
+int __init bcm63xx_trng_register(void)
+{
+ if (!BCMCPU_IS_6368())
+ return -ENODEV;
+
+ trng_resources[0].start = bcm63xx_regset_address(RSET_TRNG);
+ trng_resources[0].end = trng_resources[0].start;
+ trng_resources[0].end += RSET_TRNG_SIZE - 1;
+
+ return platform_device_register(&bcm63xx_trng_device);
+}
+arch_initcall(bcm63xx_trng_register);
|
