diff options
author | Chen-Yu Tsai <wens@csie.org> | 2015-01-17 13:19:26 +0800 |
---|---|---|
committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2015-01-19 22:48:55 +0100 |
commit | 61af4d8dceeb179b62cb342f4008ce3774d3d1fd (patch) | |
tree | c5844e797e4e22ebf7472fa0d314960290eda6db /drivers/clk/sunxi | |
parent | eb378df79e80772c1cbed32882b7378eb6f6c52c (diff) | |
download | linux-61af4d8dceeb179b62cb342f4008ce3774d3d1fd.tar.bz2 |
clk: sunxi: Add mod0 and mmc module clock support for A80
The module 0 style clocks, or storage module clocks as named in the
official SDK, are almost the same as the module 0 clocks on earlier
Allwinner SoCs. The only difference is wider mux register bits.
As with earlier Allwinner SoCs, mmc module clocks are a special case
of mod0 clocks, with phase controls for 2 child clocks, output and
sample.
This patch adds support for both.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'drivers/clk/sunxi')
-rw-r--r-- | drivers/clk/sunxi/clk-mod0.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/clk/sunxi/clk-mod0.c b/drivers/clk/sunxi/clk-mod0.c index 4430d1398ce6..ec8f5a1fca09 100644 --- a/drivers/clk/sunxi/clk-mod0.c +++ b/drivers/clk/sunxi/clk-mod0.c @@ -130,6 +130,30 @@ static struct platform_driver sun4i_a10_mod0_clk_driver = { }; module_platform_driver(sun4i_a10_mod0_clk_driver); +static const struct factors_data sun9i_a80_mod0_data __initconst = { + .enable = 31, + .mux = 24, + .muxmask = BIT(3) | BIT(2) | BIT(1) | BIT(0), + .table = &sun4i_a10_mod0_config, + .getter = sun4i_a10_get_mod0_factors, +}; + +static void __init sun9i_a80_mod0_setup(struct device_node *node) +{ + void __iomem *reg; + + reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) { + pr_err("Could not get registers for mod0-clk: %s\n", + node->name); + return; + } + + sunxi_factors_register(node, &sun9i_a80_mod0_data, + &sun4i_a10_mod0_lock, reg); +} +CLK_OF_DECLARE(sun9i_a80_mod0, "allwinner,sun9i-a80-mod0-clk", sun9i_a80_mod0_setup); + static DEFINE_SPINLOCK(sun5i_a13_mbus_lock); static void __init sun5i_a13_mbus_setup(struct device_node *node) @@ -358,3 +382,11 @@ static void __init sun4i_a10_mmc_setup(struct device_node *node) sunxi_mmc_setup(node, &sun4i_a10_mod0_data, &sun4i_a10_mmc_lock); } CLK_OF_DECLARE(sun4i_a10_mmc, "allwinner,sun4i-a10-mmc-clk", sun4i_a10_mmc_setup); + +static DEFINE_SPINLOCK(sun9i_a80_mmc_lock); + +static void __init sun9i_a80_mmc_setup(struct device_node *node) +{ + sunxi_mmc_setup(node, &sun9i_a80_mod0_data, &sun9i_a80_mmc_lock); +} +CLK_OF_DECLARE(sun9i_a80_mmc, "allwinner,sun9i-a80-mmc-clk", sun9i_a80_mmc_setup); |