diff options
| author | Lin Huang <hl@rock-chips.com> | 2016-08-22 05:36:19 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2016-09-04 22:58:02 +0200 |
| commit | 464b9eeb9709877ad5557d2ade6b56ae146167c7 (patch) | |
| tree | ef6e55cd2d4069cab21b5e30fee016209630c664 /drivers/clk/rockchip | |
| parent | Merge branch 'v4.9-shared/clkids' into v4.9-clk/next (diff) | |
| download | linux-464b9eeb9709877ad5557d2ade6b56ae146167c7.tar.xz linux-464b9eeb9709877ad5557d2ade6b56ae146167c7.zip | |
clk: rockchip: add rk3399 ddr clock support
add ddrc clock setting, so we can do ddr frequency
scaling on rk3399 platform in future.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/clk/rockchip')
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3399.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c index 6f3d0a60d6cd..c284c0118516 100644 --- a/drivers/clk/rockchip/clk-rk3399.c +++ b/drivers/clk/rockchip/clk-rk3399.c @@ -120,6 +120,10 @@ PNAME(mux_armclkb_p) = { "clk_core_b_lpll_src", "clk_core_b_bpll_src", "clk_core_b_dpll_src", "clk_core_b_gpll_src" }; +PNAME(mux_ddrclk_p) = { "clk_ddrc_lpll_src", + "clk_ddrc_bpll_src", + "clk_ddrc_dpll_src", + "clk_ddrc_gpll_src" }; PNAME(mux_aclk_cci_p) = { "cpll_aclk_cci_src", "gpll_aclk_cci_src", "npll_aclk_cci_src", @@ -1379,6 +1383,18 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = { COMPOSITE_NOMUX(0, "clk_test", "clk_test_pre", CLK_IGNORE_UNUSED, RK3368_CLKSEL_CON(58), 0, 5, DFLAGS, RK3368_CLKGATE_CON(13), 11, GFLAGS), + + /* ddrc */ + GATE(0, "clk_ddrc_lpll_src", "lpll", 0, RK3399_CLKGATE_CON(3), + 0, GFLAGS), + GATE(0, "clk_ddrc_bpll_src", "bpll", 0, RK3399_CLKGATE_CON(3), + 1, GFLAGS), + GATE(0, "clk_ddrc_dpll_src", "dpll", 0, RK3399_CLKGATE_CON(3), + 2, GFLAGS), + GATE(0, "clk_ddrc_gpll_src", "gpll", 0, RK3399_CLKGATE_CON(3), + 3, GFLAGS), + COMPOSITE_DDRCLK(SCLK_DDRC, "sclk_ddrc", mux_ddrclk_p, 0, + RK3399_CLKSEL_CON(6), 4, 2, 0, 0, ROCKCHIP_DDRCLK_SIP), }; static struct rockchip_clk_branch rk3399_clk_pmu_branches[] __initdata = { @@ -1493,6 +1509,9 @@ static const char *const rk3399_cru_critical_clocks[] __initconst = { "gpll_aclk_perilp0_src", "gpll_aclk_perihp_src", "aclk_vio_noc", + + /* ddrc */ + "sclk_ddrc" }; static const char *const rk3399_pmucru_critical_clocks[] __initconst = { |