diff options
| -rw-r--r-- | sys/arm/conf/ARMADA38X | 3 | ||||
| -rw-r--r-- | sys/arm/mv/files.mv | 1 | ||||
| -rw-r--r-- | sys/dev/ahci/ahci_mv_fdt.c | 156 |
3 files changed, 160 insertions, 0 deletions
diff --git a/sys/arm/conf/ARMADA38X b/sys/arm/conf/ARMADA38X index aa5f23d..152afd8 100644 --- a/sys/arm/conf/ARMADA38X +++ b/sys/arm/conf/ARMADA38X @@ -57,6 +57,9 @@ device scbus device pass device da +# SATA +device ahci + # I2C device iic device iicbus diff --git a/sys/arm/mv/files.mv b/sys/arm/mv/files.mv index 8c303c6..e058ed0 100644 --- a/sys/arm/mv/files.mv +++ b/sys/arm/mv/files.mv @@ -29,5 +29,6 @@ dev/uart/uart_dev_ns8250.c optional uart dev/uart/uart_dev_snps.c optional uart dev/usb/controller/ehci_mv.c optional ehci dev/usb/controller/xhci_mv.c optional xhci +dev/ahci/ahci_mv_fdt.c optional ahci kern/kern_clocksource.c standard diff --git a/sys/dev/ahci/ahci_mv_fdt.c b/sys/dev/ahci/ahci_mv_fdt.c new file mode 100644 index 0000000..cf5b853 --- /dev/null +++ b/sys/dev/ahci/ahci_mv_fdt.c @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2017 Semihalf. + * Copyright (c) 2017 Stormshield. + * All rights reserved. + * + * 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/stdint.h> +#include <sys/stddef.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/bus.h> +#include <sys/module.h> +#include <sys/sysctl.h> +#include <sys/rman.h> +#include <sys/unistd.h> + +#include <machine/bus.h> +#include <machine/resource.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> + +#include <dev/ahci/ahci.h> + +#define AHCI_VENDOR_SPECIFIC_0_ADDR 0xa0 +#define AHCI_VENDOR_SPECIFIC_0_DATA 0xa4 + +#define AHCI_HC_DEVSTR "Marvell AHCI Controller" +#define AHCI_HC_VENDOR "Marvell" + +static device_attach_t ahci_mv_fdt_attach; + +static struct ofw_compat_data compatible_data[] = { + {"marvell,armada-380-ahci", true}, + {NULL, false} +}; + +static void +ahci_mv_regret_config(struct ahci_controller *ctlr) +{ + + /* + * Enable the regret bit to allow the SATA unit to regret + * a request that didn't receive an acknowledge + * and a avoid deadlock + */ + ATA_OUTL(ctlr->r_mem, AHCI_VENDOR_SPECIFIC_0_ADDR, 0x4); + ATA_OUTL(ctlr->r_mem, AHCI_VENDOR_SPECIFIC_0_DATA, 0x80); +} + +static int +ahci_mv_fdt_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + + if (!ofw_bus_search_compatible(dev, compatible_data)->ocd_data) + return (ENXIO); + + device_set_desc(dev, AHCI_HC_DEVSTR); + + return (BUS_PROBE_DEFAULT); +} + +static int +ahci_mv_fdt_attach(device_t dev) +{ + struct ahci_controller *ctlr; + int rc; + + ctlr = device_get_softc(dev); + ctlr->dev = dev; + ctlr->r_rid = 0; + ctlr->quirks = AHCI_Q_2CH; + ctlr->numirqs = 1; + + if (ofw_bus_is_compatible(dev, "marvell,armada-380-ahci")) + ctlr->quirks |= AHCI_Q_MRVL_SR_DEL; + + /* Allocate memory for controller */ + ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &ctlr->r_rid, RF_ACTIVE | RF_SHAREABLE); + if (ctlr->r_mem == NULL) { + device_printf(dev, "Failed to alloc memory for controller\n"); + return (ENOMEM); + } + + /* Reset controller */ + rc = ahci_ctlr_reset(dev); + if (rc != 0) { + device_printf(dev, "Failed to reset controller\n"); + bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem); + return (ENXIO); + } + + ahci_mv_regret_config(ctlr); + + rc = ahci_attach(dev); + if (rc != 0) { + device_printf(dev, "Failed to initialize AHCI, with error %d\n", rc); + return (ENXIO); + } + + return (0); +} + +static device_method_t ahci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, ahci_mv_fdt_probe), + DEVMETHOD(device_attach, ahci_mv_fdt_attach), + DEVMETHOD(device_detach, ahci_detach), + DEVMETHOD(bus_alloc_resource, ahci_alloc_resource), + DEVMETHOD(bus_release_resource, ahci_release_resource), + DEVMETHOD(bus_setup_intr, ahci_setup_intr), + DEVMETHOD(bus_teardown_intr, ahci_teardown_intr), + DEVMETHOD(bus_print_child, ahci_print_child), + DEVMETHOD(bus_child_location_str, ahci_child_location_str), + DEVMETHOD(bus_get_dma_tag, ahci_get_dma_tag), + DEVMETHOD_END +}; + +static devclass_t ahci_devclass; +static driver_t ahci_driver = { + "ahci", + ahci_methods, + sizeof(struct ahci_controller) +}; + +DRIVER_MODULE(ahci, simplebus, ahci_driver, ahci_devclass, NULL, NULL); +DRIVER_MODULE(ahci, ofwbus, ahci_driver, ahci_devclass, NULL, NULL); |
