| Message ID | 1486349435-8681-3-git-send-email-zhangqing@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Elaine, Am Montag, 6. Februar 2017, 10:50:35 CET schrieb Elaine Zhang: > With the newly introduced clk type for muxes in the grf we now can > describe some missing clocks, like the clk_gmac2io and clk_gmac2phy > that selects between clk_mac2io_src and gmac_clkin based on a bit > set in the general register files. > > Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> both patches look good, but I do have a question below. Anyway, we're very late in the cycle for 4.10, so we'll need to wait until after the next merge-window. > --- > drivers/clk/rockchip/clk-rk3328.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/clk/rockchip/clk-rk3328.c > b/drivers/clk/rockchip/clk-rk3328.c index 1e384e143504..b04f29774ee7 100644 > --- a/drivers/clk/rockchip/clk-rk3328.c > +++ b/drivers/clk/rockchip/clk-rk3328.c > @@ -20,6 +20,7 @@ > #include <dt-bindings/clock/rk3328-cru.h> > #include "clk.h" > > +#define RK3328_GRF_SOC_CON4 0x410 > #define RK3328_GRF_SOC_STATUS0 0x480 > #define RK3328_GRF_MAC_CON1 0x904 > #define RK3328_GRF_MAC_CON2 0x908 > @@ -214,6 +215,8 @@ enum rk3328_plls { > "gmac_clkin" }; > PNAME(mux_mac2phy_src_p) = { "clk_mac2phy_src", > "phy_50m_out" }; > +PNAME(mux_mac2io_ext_p) = { "clk_mac2io", > + "gmac_clkin" }; > > static struct rockchip_pll_clock rk3328_pll_clks[] __initdata = { > [apll] = PLL(pll_rk3328, PLL_APLL, "apll", mux_pll_p, > @@ -680,6 +683,10 @@ enum rk3328_plls { > COMPOSITE(SCLK_MAC2IO_OUT, "clk_mac2io_out", mux_2plls_p, 0, > RK3328_CLKSEL_CON(27), 15, 1, MFLAGS, 8, 5, DFLAGS, > RK3328_CLKGATE_CON(3), 5, GFLAGS), > + MUXGRF(SCLK_MAC2IO, "clk_mac2io", mux_mac2io_src_p, > CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_MAC_CON1, 10, 1, MFLAGS), > + MUXGRF(SCLK_MAC2IO_EXT, "clk_mac2io_ext", mux_mac2io_ext_p, > CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_SOC_CON4, 14, 1, MFLAGS), > > COMPOSITE(SCLK_MAC2PHY_SRC, "clk_mac2phy_src", mux_2plls_p, 0, > RK3328_CLKSEL_CON(26), 7, 1, MFLAGS, 0, 5, DFLAGS, > @@ -691,6 +698,8 @@ enum rk3328_plls { > COMPOSITE_NOMUX(SCLK_MAC2PHY_OUT, "clk_mac2phy_out", "clk_mac2phy", 0, > RK3328_CLKSEL_CON(26), 8, 2, DFLAGS, > RK3328_CLKGATE_CON(9), 2, GFLAGS), > + MUXGRF(SCLK_MAC2PHY, "clk_mac2phy", mux_mac2phy_src_p, > CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_MAC_CON2, 10, 1, MFLAGS), You don't set CLK_SET_RATE_PARENT but you do set CLK_SET_RATE_NO_REPARENT - essentially disabling all automatic clock-changes for them. Does this mean that these clocks should always only be set "manually" from something like the assigned-clocks in dts? This is not a problem in itself, I just want to understand how they should be used :-) Thanks Heiko
diff --git a/drivers/clk/rockchip/clk-rk3328.c b/drivers/clk/rockchip/clk-rk3328.c index 1e384e143504..b04f29774ee7 100644 --- a/drivers/clk/rockchip/clk-rk3328.c +++ b/drivers/clk/rockchip/clk-rk3328.c @@ -20,6 +20,7 @@ #include <dt-bindings/clock/rk3328-cru.h> #include "clk.h" +#define RK3328_GRF_SOC_CON4 0x410 #define RK3328_GRF_SOC_STATUS0 0x480 #define RK3328_GRF_MAC_CON1 0x904 #define RK3328_GRF_MAC_CON2 0x908 @@ -214,6 +215,8 @@ enum rk3328_plls { "gmac_clkin" }; PNAME(mux_mac2phy_src_p) = { "clk_mac2phy_src", "phy_50m_out" }; +PNAME(mux_mac2io_ext_p) = { "clk_mac2io", + "gmac_clkin" }; static struct rockchip_pll_clock rk3328_pll_clks[] __initdata = { [apll] = PLL(pll_rk3328, PLL_APLL, "apll", mux_pll_p, @@ -680,6 +683,10 @@ enum rk3328_plls { COMPOSITE(SCLK_MAC2IO_OUT, "clk_mac2io_out", mux_2plls_p, 0, RK3328_CLKSEL_CON(27), 15, 1, MFLAGS, 8, 5, DFLAGS, RK3328_CLKGATE_CON(3), 5, GFLAGS), + MUXGRF(SCLK_MAC2IO, "clk_mac2io", mux_mac2io_src_p, CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_MAC_CON1, 10, 1, MFLAGS), + MUXGRF(SCLK_MAC2IO_EXT, "clk_mac2io_ext", mux_mac2io_ext_p, CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_SOC_CON4, 14, 1, MFLAGS), COMPOSITE(SCLK_MAC2PHY_SRC, "clk_mac2phy_src", mux_2plls_p, 0, RK3328_CLKSEL_CON(26), 7, 1, MFLAGS, 0, 5, DFLAGS, @@ -691,6 +698,8 @@ enum rk3328_plls { COMPOSITE_NOMUX(SCLK_MAC2PHY_OUT, "clk_mac2phy_out", "clk_mac2phy", 0, RK3328_CLKSEL_CON(26), 8, 2, DFLAGS, RK3328_CLKGATE_CON(9), 2, GFLAGS), + MUXGRF(SCLK_MAC2PHY, "clk_mac2phy", mux_mac2phy_src_p, CLK_SET_RATE_NO_REPARENT, + RK3328_GRF_MAC_CON2, 10, 1, MFLAGS), FACTOR(0, "xin12m", "xin24m", 0, 1, 2),
With the newly introduced clk type for muxes in the grf we now can describe some missing clocks, like the clk_gmac2io and clk_gmac2phy that selects between clk_mac2io_src and gmac_clkin based on a bit set in the general register files. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> --- drivers/clk/rockchip/clk-rk3328.c | 9 +++++++++ 1 file changed, 9 insertions(+)