diff options
Diffstat (limited to 'drivers/clk/rockchip/clk-rk3288.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3288.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 5a67b7869960..85907f31c63f 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -14,6 +14,7 @@ */ #include <linux/clk-provider.h> +#include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/syscore_ops.h> @@ -200,8 +201,8 @@ PNAME(mux_aclk_cpu_src_p) = { "cpll_aclk_cpu", "gpll_aclk_cpu" }; PNAME(mux_pll_src_cpll_gpll_p) = { "cpll", "gpll" }; PNAME(mux_pll_src_npll_cpll_gpll_p) = { "npll", "cpll", "gpll" }; PNAME(mux_pll_src_cpll_gpll_npll_p) = { "cpll", "gpll", "npll" }; -PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "usbphy480m_src" }; -PNAME(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "usbphy480m_src", "npll" }; +PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "unstable:usbphy480m_src" }; +PNAME(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "unstable:usbphy480m_src", "npll" }; PNAME(mux_mmc_src_p) = { "cpll", "gpll", "xin24m", "xin24m" }; PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" }; @@ -219,7 +220,7 @@ PNAME(mux_hsadcout_p) = { "hsadc_src", "ext_hsadc" }; PNAME(mux_edp_24m_p) = { "ext_edp_24m", "xin24m" }; PNAME(mux_tspout_p) = { "cpll", "gpll", "npll", "xin27m" }; -PNAME(mux_aclk_vcodec_pre_p) = { "aclk_vepu", "aclk_vdpu" }; +PNAME(mux_aclk_vcodec_pre_p) = { "aclk_vdpu", "aclk_vepu" }; PNAME(mux_usbphy480m_p) = { "sclk_otgphy1_480m", "sclk_otgphy2_480m", "sclk_otgphy0_480m" }; PNAME(mux_hsicphy480m_p) = { "cpll", "gpll", "usbphy480m_src" }; @@ -313,13 +314,13 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(0), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 6, GFLAGS), - COMPOSITE_NOMUX(0, "atclk", "armclk", CLK_IGNORE_UNUSED, + COMPOSITE_NOMUX(0, "atclk", "armclk", 0, RK3288_CLKSEL_CON(37), 4, 5, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 7, GFLAGS), COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(37), 9, 5, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 8, GFLAGS), - GATE(0, "pclk_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED, + GATE(0, "pclk_dbg", "pclk_dbg_pre", 0, RK3288_CLKGATE_CON(12), 9, GFLAGS), GATE(0, "cs_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(12), 10, GFLAGS), @@ -420,7 +421,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb480m_p, 0, RK3288_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(3), 11, GFLAGS), - MUXGRF(0, "aclk_vcodec_pre", mux_aclk_vcodec_pre_p, 0, + MUXGRF(0, "aclk_vcodec_pre", mux_aclk_vcodec_pre_p, CLK_SET_RATE_PARENT, RK3288_GRF_SOC_CON(0), 7, 1, MFLAGS), GATE(ACLK_VCODEC, "aclk_vcodec", "aclk_vcodec_pre", 0, RK3288_CLKGATE_CON(9), 0, GFLAGS), @@ -647,7 +648,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { INVERTER(SCLK_HSADC, "sclk_hsadc", "sclk_hsadc_out", RK3288_CLKSEL_CON(22), 7, IFLAGS), - GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED, + GATE(0, "jtag", "ext_jtag", 0, RK3288_CLKGATE_CON(4), 14, GFLAGS), COMPOSITE_NODIV(SCLK_USBPHY480M_SRC, "usbphy480m_src", mux_usbphy480m_p, 0, @@ -656,7 +657,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NODIV(SCLK_HSICPHY480M, "sclk_hsicphy480m", mux_hsicphy480m_p, 0, RK3288_CLKSEL_CON(29), 0, 2, MFLAGS, RK3288_CLKGATE_CON(3), 6, GFLAGS), - GATE(0, "hsicphy12m_xin12m", "xin12m", CLK_IGNORE_UNUSED, + GATE(0, "hsicphy12m_xin12m", "xin12m", 0, RK3288_CLKGATE_CON(13), 9, GFLAGS), DIV(0, "hsicphy12m_usbphy", "sclk_hsicphy480m", 0, RK3288_CLKSEL_CON(11), 8, 6, DFLAGS), @@ -697,7 +698,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS), GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS), GATE(PCLK_EFUSE256, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS), - GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 11, GFLAGS), + GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 11, GFLAGS), /* ddrctrl [DDR Controller PHY clock] gates */ GATE(0, "nclk_ddrupctl0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 4, GFLAGS), @@ -837,12 +838,9 @@ static const char *const rk3288_critical_clocks[] __initconst = { "pclk_alive_niu", "pclk_pd_pmu", "pclk_pmu_niu", - "pclk_core_niu", - "pclk_ddrupctl0", - "pclk_publ0", - "pclk_ddrupctl1", - "pclk_publ1", "pmu_hclk_otg0", + /* pwm-regulators on some boards, so handoff-critical later */ + "pclk_rkpwm", }; static void __iomem *rk3288_cru_base; @@ -859,6 +857,9 @@ static const int rk3288_saved_cru_reg_ids[] = { RK3288_CLKSEL_CON(10), RK3288_CLKSEL_CON(33), RK3288_CLKSEL_CON(37), + + /* We turn aclk_dmac1 on for suspend; this will restore it */ + RK3288_CLKGATE_CON(10), }; static u32 rk3288_saved_cru_regs[ARRAY_SIZE(rk3288_saved_cru_reg_ids)]; @@ -875,6 +876,14 @@ static int rk3288_clk_suspend(void) } /* + * Going into deep sleep (specifically setting PMU_CLR_DMA in + * RK3288_PMU_PWRMODE_CON1) appears to fail unless + * "aclk_dmac1" is on. + */ + writel_relaxed(1 << (12 + 16), + rk3288_cru_base + RK3288_CLKGATE_CON(10)); + + /* * Switch PLLs other than DPLL (for SDRAM) to slow mode to * avoid crashes on resume. The Mask ROM on the system will * put APLL, CPLL, and GPLL into slow mode at resume time |