The sun4i-apb0 clock, as found on all platforms using it, is a power-of-two-based divider clock, with a special divider of 2 for value 0.
This was causing the clock framework to incorrectly calculate the clock rate for apb1 and related modules on sun6i and sun8i. On sun[4/5/7]i, u-boot SPL configures the divider with value 1 for /2 divider, so no suprises there. This patch adds a proper divider table for it, so the correct clock rate can be calculated. Signed-off-by: Chen-Yu Tsai <[email protected]> --- drivers/clk/sunxi/clk-sunxi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index b654b7b..2cf6581 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -762,10 +762,19 @@ static const struct div_data sun4i_ahb_data __initconst = { .width = 2, }; +static const struct clk_div_table sun4i_apb0_table[] __initconst = { + { .val = 0, .div = 2 }, + { .val = 1, .div = 2 }, + { .val = 2, .div = 4 }, + { .val = 3, .div = 8 }, + { } /* sentinel */ +}; + static const struct div_data sun4i_apb0_data __initconst = { .shift = 8, .pow = 1, .width = 2, + .table = sun4i_apb0_table, }; static const struct div_data sun6i_a31_apb2_div_data __initconst = { -- 2.1.0 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
