X-Git-Url: http://plrg.eecs.uci.edu/git/?p=firefly-linux-kernel-4.4.55.git;a=blobdiff_plain;f=drivers%2Fclk%2Frockchip%2Fclk-rk3288.c;h=1196818a0fbd79460fb9b8cb39c0d21c922aa449;hp=9040878e3e2b6cef9b3230e6af093e4df65acf09;hb=6e7ff899c21f70bb26e546d66d25b654fda79d67;hpb=c44506997c67bcc6299e47dd43030cbd133ed439 diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 9040878e3e2b..1196818a0fbd 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -165,7 +165,10 @@ static const struct rockchip_cpuclk_reg_data rk3288_cpuclk_data = { .core_reg = RK3288_CLKSEL_CON(0), .div_core_shift = 8, .div_core_mask = 0x1f, + .mux_core_alt = 1, + .mux_core_main = 0, .mux_core_shift = 15, + .mux_core_mask = 0x1, }; PNAME(mux_pll_p) = { "xin24m", "xin32k" }; @@ -225,6 +228,38 @@ static struct clk_div_table div_hclk_cpu_t[] = { #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) #define IFLAGS ROCKCHIP_INVERTER_HIWORD_MASK +static struct rockchip_clk_branch rk3288_i2s_fracmux __initdata = + MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(4), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_spdif_fracmux __initdata = + MUX(0, "spdif_mux", mux_spdif_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(5), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_spdif_8ch_fracmux __initdata = + MUX(0, "spdif_8ch_mux", mux_spdif_8ch_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(40), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_uart0_fracmux __initdata = + MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(13), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_uart1_fracmux __initdata = + MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(14), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_uart2_fracmux __initdata = + MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(15), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_uart3_fracmux __initdata = + MUX(SCLK_UART3, "sclk_uart3", mux_uart3_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(16), 8, 2, MFLAGS); + +static struct rockchip_clk_branch rk3288_uart4_fracmux __initdata = + MUX(SCLK_UART4, "sclk_uart4", mux_uart4_p, CLK_SET_RATE_PARENT, + RK3288_CLKSEL_CON(3), 8, 2, MFLAGS); + static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { /* * Clock-Architecture Diagram 1 @@ -304,11 +339,10 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "i2s_src", mux_pll_src_cpll_gpll_p, 0, RK3288_CLKSEL_CON(4), 15, 1, MFLAGS, 0, 7, DFLAGS, RK3288_CLKGATE_CON(4), 1, GFLAGS), - COMPOSITE_FRAC(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(8), 0, - RK3288_CLKGATE_CON(4), 2, GFLAGS), - MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(4), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(4), 2, GFLAGS, + &rk3288_i2s_fracmux), COMPOSITE_NODIV(SCLK_I2S0_OUT, "i2s0_clkout", mux_i2s_clkout_p, 0, RK3288_CLKSEL_CON(4), 12, 1, MFLAGS, RK3288_CLKGATE_CON(4), 0, GFLAGS), @@ -317,23 +351,23 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { MUX(0, "spdif_src", mux_pll_src_cpll_gpll_p, 0, RK3288_CLKSEL_CON(5), 15, 1, MFLAGS), - COMPOSITE_NOMUX(0, "spdif_pre", "spdif_src", 0, + COMPOSITE_NOMUX(0, "spdif_pre", "spdif_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(5), 0, 7, DFLAGS, RK3288_CLKGATE_CON(4), 4, GFLAGS), - COMPOSITE_FRAC(0, "spdif_frac", "spdif_src", 0, + COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(9), 0, - RK3288_CLKGATE_CON(4), 5, GFLAGS), - COMPOSITE_NODIV(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0, - RK3288_CLKSEL_CON(5), 8, 2, MFLAGS, + RK3288_CLKGATE_CON(4), 5, GFLAGS, + &rk3288_spdif_fracmux), + GATE(SCLK_SPDIF, "sclk_spdif", "spdif_mux", CLK_SET_RATE_PARENT, RK3288_CLKGATE_CON(4), 6, GFLAGS), - COMPOSITE_NOMUX(0, "spdif_8ch_pre", "spdif_src", 0, + COMPOSITE_NOMUX(0, "spdif_8ch_pre", "spdif_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(40), 0, 7, DFLAGS, RK3288_CLKGATE_CON(4), 7, GFLAGS), - COMPOSITE_FRAC(0, "spdif_8ch_frac", "spdif_8ch_pre", 0, + COMPOSITE_FRACMUX(0, "spdif_8ch_frac", "spdif_8ch_pre", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(41), 0, - RK3288_CLKGATE_CON(4), 8, GFLAGS), - COMPOSITE_NODIV(SCLK_SPDIF8CH, "sclk_spdif_8ch", mux_spdif_8ch_p, 0, - RK3288_CLKSEL_CON(40), 8, 2, MFLAGS, + RK3288_CLKGATE_CON(4), 8, GFLAGS, + &rk3288_spdif_8ch_fracmux), + GATE(SCLK_SPDIF8CH, "sclk_spdif_8ch", "spdif_8ch_mux", CLK_SET_RATE_PARENT, RK3288_CLKGATE_CON(4), 9, GFLAGS), GATE(0, "sclk_acc_efuse", "xin24m", 0, @@ -536,45 +570,40 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "uart0_src", mux_pll_src_cpll_gll_usb_npll_p, 0, RK3288_CLKSEL_CON(13), 13, 2, MFLAGS, 0, 7, DFLAGS, RK3288_CLKGATE_CON(1), 8, GFLAGS), - COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(17), 0, - RK3288_CLKGATE_CON(1), 9, GFLAGS), - MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(13), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(1), 9, GFLAGS, + &rk3288_uart0_fracmux), MUX(0, "uart_src", mux_pll_src_cpll_gpll_p, 0, RK3288_CLKSEL_CON(13), 15, 1, MFLAGS), COMPOSITE_NOMUX(0, "uart1_src", "uart_src", 0, RK3288_CLKSEL_CON(14), 0, 7, DFLAGS, RK3288_CLKGATE_CON(1), 10, GFLAGS), - COMPOSITE_FRAC(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(18), 0, - RK3288_CLKGATE_CON(1), 11, GFLAGS), - MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(14), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(1), 11, GFLAGS, + &rk3288_uart1_fracmux), COMPOSITE_NOMUX(0, "uart2_src", "uart_src", 0, RK3288_CLKSEL_CON(15), 0, 7, DFLAGS, RK3288_CLKGATE_CON(1), 12, GFLAGS), - COMPOSITE_FRAC(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(19), 0, - RK3288_CLKGATE_CON(1), 13, GFLAGS), - MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(15), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(1), 13, GFLAGS, + &rk3288_uart2_fracmux), COMPOSITE_NOMUX(0, "uart3_src", "uart_src", 0, RK3288_CLKSEL_CON(16), 0, 7, DFLAGS, RK3288_CLKGATE_CON(1), 14, GFLAGS), - COMPOSITE_FRAC(0, "uart3_frac", "uart3_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "uart3_frac", "uart3_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(20), 0, - RK3288_CLKGATE_CON(1), 15, GFLAGS), - MUX(SCLK_UART3, "sclk_uart3", mux_uart3_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(16), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(1), 15, GFLAGS, + &rk3288_uart3_fracmux), COMPOSITE_NOMUX(0, "uart4_src", "uart_src", 0, RK3288_CLKSEL_CON(3), 0, 7, DFLAGS, RK3288_CLKGATE_CON(2), 12, GFLAGS), - COMPOSITE_FRAC(0, "uart4_frac", "uart4_src", CLK_SET_RATE_PARENT, + COMPOSITE_FRACMUX(0, "uart4_frac", "uart4_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(7), 0, - RK3288_CLKGATE_CON(2), 13, GFLAGS), - MUX(SCLK_UART4, "sclk_uart4", mux_uart4_p, CLK_SET_RATE_PARENT, - RK3288_CLKSEL_CON(3), 8, 2, MFLAGS), + RK3288_CLKGATE_CON(2), 13, GFLAGS, + &rk3288_uart4_fracmux), COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0, RK3288_CLKSEL_CON(21), 0, 2, MFLAGS, 8, 5, DFLAGS, @@ -783,10 +812,10 @@ static const char *const rk3288_critical_clocks[] __initconst = { "pclk_pd_pmu", }; -#ifdef CONFIG_PM_SLEEP static void __iomem *rk3288_cru_base; -/* Some CRU registers will be reset in maskrom when the system +/* + * Some CRU registers will be reset in maskrom when the system * wakes up from fastboot. * So save them before suspend, restore them after resume. */ @@ -840,33 +869,33 @@ static void rk3288_clk_resume(void) } } +static void rk3288_clk_shutdown(void) +{ + writel_relaxed(0xf3030000, rk3288_cru_base + RK3288_MODE_CON); +} + static struct syscore_ops rk3288_clk_syscore_ops = { .suspend = rk3288_clk_suspend, .resume = rk3288_clk_resume, }; -static void rk3288_clk_sleep_init(void __iomem *reg_base) -{ - rk3288_cru_base = reg_base; - register_syscore_ops(&rk3288_clk_syscore_ops); -} - -#else /* CONFIG_PM_SLEEP */ -static void rk3288_clk_sleep_init(void __iomem *reg_base) {} -#endif - static void __init rk3288_clk_init(struct device_node *np) { - void __iomem *reg_base; + struct rockchip_clk_provider *ctx; struct clk *clk; - reg_base = of_iomap(np, 0); - if (!reg_base) { + rk3288_cru_base = of_iomap(np, 0); + if (!rk3288_cru_base) { pr_err("%s: could not map cru region\n", __func__); return; } - rockchip_clk_init(np, reg_base, CLK_NR_CLKS); + ctx = rockchip_clk_init(np, rk3288_cru_base, CLK_NR_CLKS); + if (IS_ERR(ctx)) { + pr_err("%s: rockchip clk init failed\n", __func__); + iounmap(rk3288_cru_base); + return; + } /* xin12m is created by an cru-internal divider */ clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2); @@ -892,25 +921,29 @@ static void __init rk3288_clk_init(struct device_node *np) pr_warn("%s: could not register clock pclk_wdt: %ld\n", __func__, PTR_ERR(clk)); else - rockchip_clk_add_lookup(clk, PCLK_WDT); + rockchip_clk_add_lookup(ctx, clk, PCLK_WDT); - rockchip_clk_register_plls(rk3288_pll_clks, + rockchip_clk_register_plls(ctx, rk3288_pll_clks, ARRAY_SIZE(rk3288_pll_clks), RK3288_GRF_SOC_STATUS1); - rockchip_clk_register_branches(rk3288_clk_branches, + rockchip_clk_register_branches(ctx, rk3288_clk_branches, ARRAY_SIZE(rk3288_clk_branches)); rockchip_clk_protect_critical(rk3288_critical_clocks, ARRAY_SIZE(rk3288_critical_clocks)); - rockchip_clk_register_armclk(ARMCLK, "armclk", + rockchip_clk_register_armclk(ctx, ARMCLK, "armclk", mux_armclk_p, ARRAY_SIZE(mux_armclk_p), &rk3288_cpuclk_data, rk3288_cpuclk_rates, ARRAY_SIZE(rk3288_cpuclk_rates)); - rockchip_register_softrst(np, 12, reg_base + RK3288_SOFTRST_CON(0), + rockchip_register_softrst(np, 12, + rk3288_cru_base + RK3288_SOFTRST_CON(0), ROCKCHIP_SOFTRST_HIWORD_MASK); - rockchip_register_restart_notifier(RK3288_GLB_SRST_FST); - rk3288_clk_sleep_init(reg_base); + rockchip_register_restart_notifier(ctx, RK3288_GLB_SRST_FST, + rk3288_clk_shutdown); + register_syscore_ops(&rk3288_clk_syscore_ops); + + rockchip_clk_of_add_provider(np, ctx); } CLK_OF_DECLARE(rk3288_cru, "rockchip,rk3288-cru", rk3288_clk_init);