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dwmmc.c
(39.31 KB)
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dwmmc_altera.c
(2.99 KB)
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dwmmc_hisi.c
(3.02 KB)
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dwmmc_reg.h
(8.13 KB)
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dwmmc_rockchip.c
(3.95 KB)
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dwmmc_samsung.c
(4.12 KB)
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dwmmc_var.h
(3.09 KB)
Editing: dwmmc_samsung.c
/* * Copyright 2017 Emmanuel Vadot <manu@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("$FreeBSD$"); #include <sys/param.h> #include <sys/kernel.h> #include <sys/bus.h> #include <sys/module.h> #include <sys/queue.h> #include <sys/taskqueue.h> #include <machine/bus.h> #include <dev/mmc/bridge.h> #include <dev/mmc/mmc_fdt_helpers.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #include <dev/mmc/host/dwmmc_var.h> #include <dev/mmc/host/dwmmc_reg.h> #define WRITE4(_sc, _reg, _val) \ bus_write_4((_sc)->res[0], _reg, _val) static struct ofw_compat_data compat_data[] = { {"samsung,exynos5420-dw-mshc", 1}, {NULL, 0}, }; static int samsung_dwmmc_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) return (ENXIO); device_set_desc(dev, "Synopsys DesignWare Mobile " "Storage Host Controller (Samsung)"); return (BUS_PROBE_VENDOR); } static int samsung_dwmmc_attach(device_t dev) { struct dwmmc_softc *sc; pcell_t dts_value[3]; phandle_t node; int len; sc = device_get_softc(dev); sc->hwtype = HWTYPE_EXYNOS; if ((node = ofw_bus_get_node(sc->dev)) == -1) return (ENXIO); if ((len = OF_getproplen(node, "samsung,dw-mshc-ciu-div")) <= 0) return (ENXIO); OF_getencprop(node, "samsung,dw-mshc-ciu-div", dts_value, len); sc->sdr_timing = (dts_value[0] << SDMMC_CLKSEL_DIVIDER_SHIFT); sc->ddr_timing = (dts_value[0] << SDMMC_CLKSEL_DIVIDER_SHIFT); if ((len = OF_getproplen(node, "samsung,dw-mshc-sdr-timing")) <= 0) return (ENXIO); OF_getencprop(node, "samsung,dw-mshc-sdr-timing", dts_value, len); sc->sdr_timing |= ((dts_value[0] << SDMMC_CLKSEL_SAMPLE_SHIFT) | (dts_value[1] << SDMMC_CLKSEL_DRIVE_SHIFT)); if ((len = OF_getproplen(node, "samsung,dw-mshc-ddr-timing")) <= 0) return (ENXIO); OF_getencprop(node, "samsung,dw-mshc-ddr-timing", dts_value, len); sc->ddr_timing |= ((dts_value[0] << SDMMC_CLKSEL_SAMPLE_SHIFT) | (dts_value[1] << SDMMC_CLKSEL_DRIVE_SHIFT)); WRITE4(sc, EMMCP_MPSBEGIN0, 0); WRITE4(sc, EMMCP_SEND0, 0); WRITE4(sc, EMMCP_CTRL0, (MPSCTRL_SECURE_READ_BIT | MPSCTRL_SECURE_WRITE_BIT | MPSCTRL_NON_SECURE_READ_BIT | MPSCTRL_NON_SECURE_WRITE_BIT | MPSCTRL_VALID)); return (dwmmc_attach(dev)); } static device_method_t samsung_dwmmc_methods[] = { /* bus interface */ DEVMETHOD(device_probe, samsung_dwmmc_probe), DEVMETHOD(device_attach, samsung_dwmmc_attach), DEVMETHOD_END }; static devclass_t samsung_dwmmc_devclass; DEFINE_CLASS_1(samsung_dwmmc, samsung_dwmmc_driver, samsung_dwmmc_methods, sizeof(struct dwmmc_softc), dwmmc_driver); DRIVER_MODULE(samsung_dwmmc, simplebus, samsung_dwmmc_driver, samsung_dwmmc_devclass, 0, 0); DRIVER_MODULE(samsung_dwmmc, ofwbus, samsung_dwmmc_driver, samsung_dwmmc_devclass , NULL, NULL); #ifndef MMCCAM MMC_DECLARE_BRIDGE(samsung_dwmmc); #endif
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