Simon Glass | 2cffe66 | 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> |
Simon Glass | 38675c4 | 2016-01-21 19:45:07 -0700 | [diff] [blame] | 8 | #include <clk.h> |
Simon Glass | 2cffe66 | 2015-08-30 16:55:38 -0600 | [diff] [blame] | 9 | #include <dm.h> |
| 10 | #include <ram.h> |
huang lin | 1115b64 | 2015-11-17 14:20:27 +0800 | [diff] [blame] | 11 | #include <asm/io.h> |
Simon Glass | 2cffe66 | 2015-08-30 16:55:38 -0600 | [diff] [blame] | 12 | |
| 13 | DECLARE_GLOBAL_DATA_PTR; |
| 14 | |
| 15 | int board_init(void) |
| 16 | { |
| 17 | return 0; |
| 18 | } |
| 19 | |
| 20 | int dram_init(void) |
| 21 | { |
| 22 | struct ram_info ram; |
| 23 | struct udevice *dev; |
| 24 | int ret; |
| 25 | |
| 26 | ret = uclass_get_device(UCLASS_RAM, 0, &dev); |
| 27 | if (ret) { |
| 28 | debug("DRAM init failed: %d\n", ret); |
| 29 | return ret; |
| 30 | } |
| 31 | ret = ram_get_info(dev, &ram); |
| 32 | if (ret) { |
| 33 | debug("Cannot get DRAM size: %d\n", ret); |
| 34 | return ret; |
| 35 | } |
| 36 | debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size); |
| 37 | gd->ram_size = ram.size; |
| 38 | |
| 39 | return 0; |
| 40 | } |
| 41 | |
| 42 | #ifndef CONFIG_SYS_DCACHE_OFF |
| 43 | void enable_caches(void) |
| 44 | { |
| 45 | /* Enable D-cache. I-cache is already enabled in start.S */ |
| 46 | dcache_enable(); |
| 47 | } |
| 48 | #endif |
Simon Glass | e7d7a01 | 2016-01-21 19:45:06 -0700 | [diff] [blame] | 49 | |
| 50 | void lowlevel_init(void) |
| 51 | { |
| 52 | } |
Simon Glass | 38675c4 | 2016-01-21 19:45:07 -0700 | [diff] [blame] | 53 | |
| 54 | static int do_clock(cmd_tbl_t *cmdtp, int flag, int argc, |
| 55 | char * const argv[]) |
| 56 | { |
| 57 | struct udevice *dev; |
| 58 | |
| 59 | for (uclass_first_device(UCLASS_CLK, &dev); |
| 60 | dev; |
| 61 | uclass_next_device(&dev)) { |
| 62 | ulong rate; |
| 63 | |
| 64 | rate = clk_get_rate(dev); |
| 65 | printf("%s: %lu\n", dev->name, rate); |
| 66 | } |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | U_BOOT_CMD( |
| 72 | clock, 2, 1, do_clock, |
| 73 | "display information about clocks", |
| 74 | "" |
| 75 | ); |