| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2011 Florian Fainelli <florian@openwrt.org> |
| 7 | */ |
| 8 | |
| 9 | #include <linux/init.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/platform_device.h> |
| 12 | #include <bcm63xx_cpu.h> |
| 13 | |
| 14 | static struct resource rng_resources[] = { |
| 15 | { |
| 16 | .start = -1, /* filled at runtime */ |
| 17 | .end = -1, /* filled at runtime */ |
| 18 | .flags = IORESOURCE_MEM, |
| 19 | }, |
| 20 | }; |
| 21 | |
| 22 | static struct platform_device bcm63xx_rng_device = { |
| 23 | .name = "bcm63xx-rng", |
| 24 | .id = -1, |
| 25 | .num_resources = ARRAY_SIZE(rng_resources), |
| 26 | .resource = rng_resources, |
| 27 | }; |
| 28 | |
| 29 | int __init bcm63xx_rng_register(void) |
| 30 | { |
| 31 | if (!BCMCPU_IS_6368()) |
| 32 | return -ENODEV; |
| 33 | |
| 34 | rng_resources[0].start = bcm63xx_regset_address(RSET_RNG); |
| 35 | rng_resources[0].end = rng_resources[0].start; |
| 36 | rng_resources[0].end += RSET_RNG_SIZE - 1; |
| 37 | |
| 38 | return platform_device_register(&bcm63xx_rng_device); |
| 39 | } |
| 40 | arch_initcall(bcm63xx_rng_register); |