diff options
author | Emilio López <emilio@elopez.com.ar> | 2013-02-25 09:44:26 -0500 |
---|---|---|
committer | Mike Turquette <mturquette@linaro.org> | 2013-03-27 11:35:34 -0400 |
commit | e874a6697710f52fa8ab29487a99034d5d96fdcc (patch) | |
tree | 1743abc90ee2d604fe5f8a0f4b69f171179ced31 /include/linux/clk/sunxi.h | |
parent | b54891685162e09c4292cd38f067ca118604353c (diff) |
clk: arm: sunxi: Add a new clock driver for sunxi SOCs
This commit implements the base CPU clocks for sunxi devices. It has
been tested using a slightly modified cpufreq driver from the
linux-sunxi 3.0 tree.
Additionally, document the new bindings introduced by this patch.
Idling:
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0 24000000
osc24M 0 0 24000000
apb1_mux 0 0 24000000
apb1 0 0 24000000
pll1 0 0 60000000
cpu 0 0 60000000
axi 0 0 60000000
ahb 0 0 60000000
apb0 0 0 30000000
dummy 0 0 0
After "yes >/dev/null &":
/ # cat /sys/kernel/debug/clk/clk_summary
clock enable_cnt prepare_cnt rate
---------------------------------------------------------------------
osc32k 0 0 32768
osc24M_fixed 0 0 24000000
osc24M 0 0 24000000
apb1_mux 0 0 24000000
apb1 0 0 24000000
pll1 0 0 1008000000
cpu 0 0 1008000000
axi 0 0 336000000
ahb 0 0 168000000
apb0 0 0 84000000
dummy 0 0 0
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'include/linux/clk/sunxi.h')
-rw-r--r-- | include/linux/clk/sunxi.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h new file mode 100644 index 000000000000..e074fdd5a236 --- /dev/null +++ b/include/linux/clk/sunxi.h | |||
@@ -0,0 +1,22 @@ | |||
1 | /* | ||
2 | * Copyright 2012 Maxime Ripard | ||
3 | * | ||
4 | * Maxime Ripard <maxime.ripard@free-electrons.com> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | */ | ||
16 | |||
17 | #ifndef __LINUX_CLK_SUNXI_H_ | ||
18 | #define __LINUX_CLK_SUNXI_H_ | ||
19 | |||
20 | void __init sunxi_init_clocks(void); | ||
21 | |||
22 | #endif | ||