| Simon Glass | 2444dae | 2015-08-30 16:55:38 -0600 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2015 Google, Inc |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <dm.h> |
| 9 | #include <errno.h> |
| 10 | #include <fdtdec.h> |
| 11 | #include <linux/err.h> |
| 12 | |
| 13 | void *rockchip_get_cru(void) |
| 14 | { |
| 15 | struct udevice *dev; |
| 16 | fdt_addr_t addr; |
| 17 | int ret; |
| 18 | |
| 19 | ret = uclass_get_device(UCLASS_CLK, 0, &dev); |
| 20 | if (ret) |
| 21 | return ERR_PTR(ret); |
| 22 | |
| 23 | addr = dev_get_addr(dev); |
| 24 | if (addr == FDT_ADDR_T_NONE) |
| 25 | return ERR_PTR(-EINVAL); |
| 26 | |
| 27 | return (void *)addr; |
| 28 | } |