diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun6i-a31.c | 12 | ||||
| -rw-r--r-- | drivers/clk/sunxi/clk-sunxi.c | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c index 79596463e0d9..4a82a49cff5e 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c @@ -191,6 +191,8 @@ static struct clk_div_table axi_div_table[] = { static SUNXI_CCU_DIV_TABLE(axi_clk, "axi", "cpu", 0x050, 0, 3, axi_div_table, 0); +#define SUN6I_A31_AHB1_REG 0x054 + static const char * const ahb1_parents[] = { "osc32k", "osc24M", "axi", "pll-periph" }; @@ -1230,6 +1232,16 @@ static void __init sun6i_a31_ccu_setup(struct device_node *node) val &= BIT(16); writel(val, reg + SUN6I_A31_PLL_MIPI_REG); + /* Force AHB1 to PLL6 / 3 */ + val = readl(reg + SUN6I_A31_AHB1_REG); + /* set PLL6 pre-div = 3 */ + val &= ~GENMASK(7, 6); + val |= 0x2 << 6; + /* select PLL6 / pre-div */ + val &= ~GENMASK(13, 12); + val |= 0x3 << 12; + writel(val, reg + SUN6I_A31_AHB1_REG); + sunxi_ccu_probe(node, reg, &sun6i_a31_ccu_desc); ccu_mux_notifier_register(pll_cpu_clk.common.hw.clk, diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 838b22aa8b67..f2c9274b8bd5 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -373,7 +373,7 @@ static void sun4i_get_apb1_factors(struct factors_request *req) else calcp = 3; - calcm = (req->parent_rate >> calcp) - 1; + calcm = (div >> calcp) - 1; req->rate = (req->parent_rate >> calcp) / (calcm + 1); req->m = calcm; |