sunxi_de2_ccu.c revision 1.2.2.2
1 1.2.2.2 pgoyette /* $NetBSD: sunxi_de2_ccu.c,v 1.2.2.2 2019/01/26 22:00:01 pgoyette Exp $ */ 2 1.2.2.2 pgoyette 3 1.2.2.2 pgoyette /*- 4 1.2.2.2 pgoyette * Copyright (c) 2019 Jared McNeill <jmcneill (at) invisible.ca> 5 1.2.2.2 pgoyette * All rights reserved. 6 1.2.2.2 pgoyette * 7 1.2.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.2.2.2 pgoyette * are met: 10 1.2.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.2.2.2 pgoyette * 16 1.2.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.2.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.2.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.2.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.2.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 1.2.2.2 pgoyette * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.2.2.2 pgoyette * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 1.2.2.2 pgoyette * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 1.2.2.2 pgoyette * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.2.2.2 pgoyette * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.2.2.2 pgoyette * SUCH DAMAGE. 27 1.2.2.2 pgoyette */ 28 1.2.2.2 pgoyette 29 1.2.2.2 pgoyette #include <sys/cdefs.h> 30 1.2.2.2 pgoyette 31 1.2.2.2 pgoyette __KERNEL_RCSID(1, "$NetBSD: sunxi_de2_ccu.c,v 1.2.2.2 2019/01/26 22:00:01 pgoyette Exp $"); 32 1.2.2.2 pgoyette 33 1.2.2.2 pgoyette #include <sys/param.h> 34 1.2.2.2 pgoyette #include <sys/bus.h> 35 1.2.2.2 pgoyette #include <sys/device.h> 36 1.2.2.2 pgoyette #include <sys/systm.h> 37 1.2.2.2 pgoyette 38 1.2.2.2 pgoyette #include <dev/fdt/fdtvar.h> 39 1.2.2.2 pgoyette 40 1.2.2.2 pgoyette #include <arm/sunxi/sunxi_ccu.h> 41 1.2.2.2 pgoyette #include <arm/sunxi/sunxi_de2_ccu.h> 42 1.2.2.2 pgoyette 43 1.2.2.2 pgoyette static int sunxi_de2_ccu_match(device_t, cfdata_t, void *); 44 1.2.2.2 pgoyette static void sunxi_de2_ccu_attach(device_t, device_t, void *); 45 1.2.2.2 pgoyette 46 1.2.2.2 pgoyette CFATTACH_DECL_NEW(sunxi_de2ccu, sizeof(struct sunxi_ccu_softc), 47 1.2.2.2 pgoyette sunxi_de2_ccu_match, sunxi_de2_ccu_attach, NULL, NULL); 48 1.2.2.2 pgoyette 49 1.2.2.2 pgoyette static struct sunxi_ccu_reset sun50i_a64_de2_ccu_resets[] = { 50 1.2.2.2 pgoyette SUNXI_CCU_RESET(DE2_RST_MIXER0, 0x08, 0), 51 1.2.2.2 pgoyette SUNXI_CCU_RESET(DE2_RST_MIXER1, 0x08, 1), 52 1.2.2.2 pgoyette SUNXI_CCU_RESET(DE2_RST_WB, 0x08, 2), 53 1.2.2.2 pgoyette }; 54 1.2.2.2 pgoyette 55 1.2.2.2 pgoyette static const char *mod_parents[] = { "mod" }; 56 1.2.2.2 pgoyette 57 1.2.2.2 pgoyette static struct sunxi_ccu_clk sun50i_a64_de2_ccu_clks[] = { 58 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_BUS_MIXER0, "bus-mixer0", "bus", 0x04, 0), 59 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_BUS_MIXER1, "bus-mixer1", "bus", 0x04, 1), 60 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_BUS_WB, "bus-wb", "bus", 0x04, 2), 61 1.2.2.2 pgoyette 62 1.2.2.2 pgoyette SUNXI_CCU_DIV(DE2_CLK_MIXER0_DIV, "mixer0-div", mod_parents, 63 1.2.2.2 pgoyette 0x0c, __BITS(3,0), 0, SUNXI_CCU_DIV_SET_RATE_PARENT), 64 1.2.2.2 pgoyette SUNXI_CCU_DIV(DE2_CLK_MIXER1_DIV, "mixer1-div", mod_parents, 65 1.2.2.2 pgoyette 0x0c, __BITS(7,4), 0, SUNXI_CCU_DIV_SET_RATE_PARENT), 66 1.2.2.2 pgoyette SUNXI_CCU_DIV(DE2_CLK_WB_DIV, "wb-div", mod_parents, 67 1.2.2.2 pgoyette 0x0c, __BITS(11,8), 0, SUNXI_CCU_DIV_SET_RATE_PARENT), 68 1.2.2.2 pgoyette 69 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_MIXER0, "mixer0", "mixer0-div", 0x00, 0), 70 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_MIXER1, "mixer1", "mixer1-div", 0x00, 1), 71 1.2.2.2 pgoyette SUNXI_CCU_GATE(DE2_CLK_WB, "wb", "wb-div", 0x00, 2), 72 1.2.2.2 pgoyette }; 73 1.2.2.2 pgoyette 74 1.2.2.2 pgoyette struct sunxi_de2_ccu_config { 75 1.2.2.2 pgoyette struct sunxi_ccu_reset *resets; 76 1.2.2.2 pgoyette u_int nresets; 77 1.2.2.2 pgoyette struct sunxi_ccu_clk *clks; 78 1.2.2.2 pgoyette u_int nclks; 79 1.2.2.2 pgoyette }; 80 1.2.2.2 pgoyette 81 1.2.2.2 pgoyette static const struct sunxi_de2_ccu_config sun50i_a64_de2_config = { 82 1.2.2.2 pgoyette .resets = sun50i_a64_de2_ccu_resets, 83 1.2.2.2 pgoyette .nresets = __arraycount(sun50i_a64_de2_ccu_resets), 84 1.2.2.2 pgoyette .clks = sun50i_a64_de2_ccu_clks, 85 1.2.2.2 pgoyette .nclks = __arraycount(sun50i_a64_de2_ccu_clks), 86 1.2.2.2 pgoyette }; 87 1.2.2.2 pgoyette 88 1.2.2.2 pgoyette static const struct of_compat_data compat_data[] = { 89 1.2.2.2 pgoyette { "allwinner,sun50i-a64-de2-clk", (uintptr_t)&sun50i_a64_de2_config }, 90 1.2.2.2 pgoyette { NULL } 91 1.2.2.2 pgoyette }; 92 1.2.2.2 pgoyette 93 1.2.2.2 pgoyette static int 94 1.2.2.2 pgoyette sunxi_de2_ccu_match(device_t parent, cfdata_t cf, void *aux) 95 1.2.2.2 pgoyette { 96 1.2.2.2 pgoyette struct fdt_attach_args * const faa = aux; 97 1.2.2.2 pgoyette 98 1.2.2.2 pgoyette return of_match_compat_data(faa->faa_phandle, compat_data); 99 1.2.2.2 pgoyette } 100 1.2.2.2 pgoyette 101 1.2.2.2 pgoyette static void 102 1.2.2.2 pgoyette sunxi_de2_ccu_attach(device_t parent, device_t self, void *aux) 103 1.2.2.2 pgoyette { 104 1.2.2.2 pgoyette struct sunxi_ccu_softc * const sc = device_private(self); 105 1.2.2.2 pgoyette struct fdt_attach_args * const faa = aux; 106 1.2.2.2 pgoyette const int phandle = faa->faa_phandle; 107 1.2.2.2 pgoyette const struct sunxi_de2_ccu_config *conf; 108 1.2.2.2 pgoyette struct clk *clk_bus, *clk_mod; 109 1.2.2.2 pgoyette struct fdtbus_reset *rst; 110 1.2.2.2 pgoyette 111 1.2.2.2 pgoyette sc->sc_dev = self; 112 1.2.2.2 pgoyette sc->sc_phandle = phandle; 113 1.2.2.2 pgoyette sc->sc_bst = faa->faa_bst; 114 1.2.2.2 pgoyette 115 1.2.2.2 pgoyette conf = (void *)of_search_compatible(phandle, compat_data)->data; 116 1.2.2.2 pgoyette 117 1.2.2.2 pgoyette sc->sc_resets = conf->resets; 118 1.2.2.2 pgoyette sc->sc_nresets = conf->nresets; 119 1.2.2.2 pgoyette sc->sc_clks = conf->clks; 120 1.2.2.2 pgoyette sc->sc_nclks = conf->nclks; 121 1.2.2.2 pgoyette 122 1.2.2.2 pgoyette clk_bus = fdtbus_clock_get(phandle, "bus"); 123 1.2.2.2 pgoyette if (clk_bus == NULL || clk_enable(clk_bus) != 0) { 124 1.2.2.2 pgoyette aprint_error(": couldn't enable bus clock\n"); 125 1.2.2.2 pgoyette return; 126 1.2.2.2 pgoyette } 127 1.2.2.2 pgoyette clk_mod = fdtbus_clock_get(phandle, "mod"); 128 1.2.2.2 pgoyette if (clk_mod == NULL || clk_enable(clk_mod) != 0) { 129 1.2.2.2 pgoyette aprint_error(": couldn't enable mod clock\n"); 130 1.2.2.2 pgoyette return; 131 1.2.2.2 pgoyette } 132 1.2.2.2 pgoyette rst = fdtbus_reset_get_index(phandle, 0); 133 1.2.2.2 pgoyette if (rst == NULL || fdtbus_reset_deassert(rst) != 0) { 134 1.2.2.2 pgoyette aprint_error(": couldn't de-assert reset\n"); 135 1.2.2.2 pgoyette return; 136 1.2.2.2 pgoyette } 137 1.2.2.2 pgoyette 138 1.2.2.2 pgoyette if (sunxi_ccu_attach(sc) != 0) 139 1.2.2.2 pgoyette return; 140 1.2.2.2 pgoyette 141 1.2.2.2 pgoyette aprint_naive("\n"); 142 1.2.2.2 pgoyette aprint_normal(": DE2 CCU\n"); 143 1.2.2.2 pgoyette 144 1.2.2.2 pgoyette sunxi_ccu_print(sc); 145 1.2.2.2 pgoyette } 146
Indexes created Fri Oct 31 11:10:07 GMT 2025