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ls1046a_clkgen.c
(6.13 KB)
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lx2160a_clkgen.c
(6.43 KB)
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qoriq_clk_pll.c
(3.94 KB)
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qoriq_clk_pll.h
(1.81 KB)
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qoriq_clkgen.c
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qoriq_clkgen.h
(2.79 KB)
Editing: lx2160a_clkgen.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright 2020 Michal Meloun <mmel@FreeBSD.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); /* * Clock driver for LX2160A SoC. */ #include <sys/param.h> #include <sys/bus.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/mutex.h> #include <sys/rman.h> #include <machine/bus.h> #include <dev/fdt/simplebus.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #include <dev/extres/clk/clk_fixed.h> #include <arm64/qoriq/clk/qoriq_clkgen.h> #define PLL(_id1, _id2, cname, o, d) \ { \ .clkdef.id = QORIQ_CLK_ID(_id1, _id2), \ .clkdef.name = cname, \ .clkdef.flags = 0, \ .offset = o, \ .shift = 1, \ .mask = 0xFE, \ .dividers = d, \ .flags = QORIQ_CLK_PLL_HAS_KILL_BIT, \ } static const uint8_t plt_divs[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 0}; static const uint8_t cga_divs[] = {2, 4, 0}; static const uint8_t cgb_divs[] = {2, 3, 4, 0}; static struct qoriq_clk_pll_def pltfrm_pll = PLL(QORIQ_TYPE_PLATFORM_PLL, 0, "platform_pll", 0x60080, plt_divs); static struct qoriq_clk_pll_def cga_pll1 = PLL(QORIQ_TYPE_INTERNAL, 0, "cga_pll1", 0x80, cga_divs); static struct qoriq_clk_pll_def cga_pll2 = PLL(QORIQ_TYPE_INTERNAL, 0, "cga_pll2", 0xA0, cga_divs); static struct qoriq_clk_pll_def cgb_pll1 = PLL(QORIQ_TYPE_INTERNAL, 0, "cgb_pll1", 0x10080, cgb_divs); static struct qoriq_clk_pll_def cgb_pll2 = PLL(QORIQ_TYPE_INTERNAL, 0, "cgb_pll2", 0x100A0, cgb_divs); static struct qoriq_clk_pll_def *cg_plls[] = { &cga_pll1, &cga_pll2, &cgb_pll1, &cgb_pll2, }; #if 0 static struct qoriq_clk_pll_def *cg_plls[] = { &(struct qoriq_clk_pll_def) {PLL(QORIQ_TYPE_INTERNAL, 0, "cga_pll1", 0x80, cg_divs)}, &(struct qoriq_clk_pll_def) {PLL(QORIQ_TYPE_INTERNAL, 0, "cga_pll2", 0xA0, cg_divs)}, &(struct qoriq_clk_pll_def) {PLL(QORIQ_TYPE_INTERNAL, 0, "cgb_pll1", 0x10080, cg_divs)}, &(struct qoriq_clk_pll_def) {PLL(QORIQ_TYPE_INTERNAL, 0, "cgb_pll2", 0x100A0, cg_divs)}, }; #endif static const char *cmuxa_plist[] = { "cga_pll1", "cga_pll1_div2", "cga_pll1_div4", NULL, "cga_pll2", "cga_pll2_div2", "cga_pll2_div4", }; static const char *cmuxb_plist[] = { "cgb_pll1", "cgb_pll1_div2", "cgb_pll1_div4", NULL, "cgb_pll2", "cgb_pll2_div2", "cgb_pll2_div4", }; #define MUX(_id1, _id2, cname, plist, o) \ { \ .clkdef.id = QORIQ_CLK_ID(_id1, _id2), \ .clkdef.name = cname, \ .clkdef.parent_names = plist, \ .clkdef.parent_cnt = nitems(plist), \ .clkdef.flags = 0, \ .offset = o, \ .width = 4, \ .shift = 27, \ .mux_flags = 0, \ } static struct clk_mux_def cmux0 = MUX(QORIQ_TYPE_CMUX, 0, "cg-cmux0", cmuxa_plist, 0x70000); static struct clk_mux_def cmux1 = MUX(QORIQ_TYPE_CMUX, 1, "cg-cmux1", cmuxa_plist, 0x70020); static struct clk_mux_def cmux2 = MUX(QORIQ_TYPE_CMUX, 2, "cg-cmux2", cmuxa_plist, 0x70040); static struct clk_mux_def cmux3 = MUX(QORIQ_TYPE_CMUX, 3, "cg-cmux3", cmuxa_plist, 0x70060); static struct clk_mux_def cmux4 = MUX(QORIQ_TYPE_CMUX, 4, "cg-cmux4", cmuxb_plist, 0x70080); static struct clk_mux_def cmux5 = MUX(QORIQ_TYPE_CMUX, 5, "cg-cmux5", cmuxb_plist, 0x700A0); static struct clk_mux_def cmux6 = MUX(QORIQ_TYPE_CMUX, 6, "cg-cmux6", cmuxb_plist, 0x700C0); static struct clk_mux_def cmux7 = MUX(QORIQ_TYPE_CMUX, 7, "cg-cmux7", cmuxb_plist, 0x700E0); static struct clk_mux_def *mux_nodes[] = { &cmux0, &cmux1, &cmux2, &cmux3, &cmux4, &cmux5, &cmux6, &cmux7, }; static int lx2160a_clkgen_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if(!ofw_bus_is_compatible(dev, "fsl,lx2160a-clockgen")) return (ENXIO); device_set_desc(dev, "LX2160A clockgen"); return (BUS_PROBE_DEFAULT); } static int lx2160a_clkgen_attach(device_t dev) { struct qoriq_clkgen_softc *sc; int rv; sc = device_get_softc(dev); sc->pltfrm_pll_def = &pltfrm_pll; sc->cga_pll = cg_plls; sc->cga_pll_num = nitems(cg_plls); sc->mux = mux_nodes; sc->mux_num = nitems(mux_nodes); sc->flags = QORIQ_LITTLE_ENDIAN; rv = qoriq_clkgen_attach(dev); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x00080, bus_read_4(sc->res, 0x00080)); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x000A0, bus_read_4(sc->res, 0x000A0)); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x10080, bus_read_4(sc->res, 0x10080)); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x100A0, bus_read_4(sc->res, 0x100A0)); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x60080, bus_read_4(sc->res, 0x60080)); printf(" %s: offset: 0x%08X, val: 0x%08X\n", __func__, 0x600A0, bus_read_4(sc->res, 0x600A0)); return (rv); } static device_method_t lx2160a_clkgen_methods[] = { DEVMETHOD(device_probe, lx2160a_clkgen_probe), DEVMETHOD(device_attach, lx2160a_clkgen_attach), DEVMETHOD_END }; static devclass_t lx2160a_clkgen_devclass; DEFINE_CLASS_1(lx2160a_clkgen, lx2160a_clkgen_driver, lx2160a_clkgen_methods, sizeof(struct qoriq_clkgen_softc), qoriq_clkgen_driver); EARLY_DRIVER_MODULE(lx2160a_clkgen, simplebus, lx2160a_clkgen_driver, lx2160a_clkgen_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
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