svn commit: r361464 - in head/sys: conf dev/ahci
Marcin Wojtas
mw at FreeBSD.org
Mon May 25 16:00:09 UTC 2020
Author: mw
Date: Mon May 25 16:00:08 2020
New Revision: 361464
URL: https://svnweb.freebsd.org/changeset/base/361464
Log:
Introduce a driver for NXP LS1046A SoC AHCI.
Implement support for AHCI controller found in
NXP QorIQ Layerscape SoCs.
Submitted by: Artur Rojek <ar at semihalf.com>
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D24466
Added:
head/sys/dev/ahci/ahci_fsl_fdt.c (contents, props changed)
Modified:
head/sys/conf/files.arm64
Modified: head/sys/conf/files.arm64
==============================================================================
--- head/sys/conf/files.arm64 Mon May 25 15:40:02 2020 (r361463)
+++ head/sys/conf/files.arm64 Mon May 25 16:00:08 2020 (r361464)
@@ -232,6 +232,7 @@ dev/acpica/acpi_if.m optional acpi
dev/acpica/acpi_pci_link.c optional acpi pci
dev/acpica/acpi_pcib.c optional acpi pci
dev/acpica/acpi_pxm.c optional acpi
+dev/ahci/ahci_fsl_fdt.c optional SOC_NXP_LS ahci fdt
dev/ahci/ahci_generic.c optional ahci
dev/altera/dwc/if_dwc_socfpga.c optional fdt dwc_socfpga
dev/axgbe/if_axgbe.c optional axgbe
Added: head/sys/dev/ahci/ahci_fsl_fdt.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/ahci/ahci_fsl_fdt.c Mon May 25 16:00:08 2020 (r361464)
@@ -0,0 +1,287 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2020 Alstom Group
+ * Copyright (c) 2020 Semihalf
+ *
+ * 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.
+ */
+
+/* AHCI controller driver for NXP QorIQ Layerscape SoCs. */
+
+#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>
+
+#include <dev/extres/clk/clk.h>
+
+#define AHCI_FSL_REG_PHY1 0xa8
+#define AHCI_FSL_REG_PHY2 0xac
+#define AHCI_FSL_REG_PHY3 0xb0
+#define AHCI_FSL_REG_PHY4 0xb4
+#define AHCI_FSL_REG_PHY5 0xb8
+#define AHCI_FSL_REG_PTC 0xc8
+
+#define AHCI_FSL_REG_PHY1_TTA_MASK 0x0001ffff
+#define AHCI_FSL_REG_PHY1_SNM (1 << 17)
+#define AHCI_FSL_REG_PHY1_SNR (1 << 18)
+#define AHCI_FSL_REG_PHY1_FPR (1 << 20)
+#define AHCI_FSL_REG_PHY1_PBPS_LBP 0
+#define AHCI_FSL_REG_PHY1_PBPS_LFTP (0x01 << 21)
+#define AHCI_FSL_REG_PHY1_PBPS_MFTP (0x02 << 21)
+#define AHCI_FSL_REG_PHY1_PBPS_HFTP (0x03 << 21)
+#define AHCI_FSL_REG_PHY1_PBPS_PRBS (0x04 << 21)
+#define AHCI_FSL_REG_PHY1_PBPS_BIST (0x05 << 21)
+#define AHCI_FSL_REG_PHY1_PBPE (1 << 24)
+#define AHCI_FSL_REG_PHY1_PBCE (1 << 25)
+#define AHCI_FSL_REG_PHY1_PBPNA (1 << 26)
+#define AHCI_FSL_REG_PHY1_STB (1 << 27)
+#define AHCI_FSL_REG_PHY1_PSSO (1 << 28)
+#define AHCI_FSL_REG_PHY1_PSS (1 << 29)
+#define AHCI_FSL_REG_PHY1_ERSN (1 << 30)
+#define AHCI_FSL_REG_PHY1_ESDF (1 << 31)
+
+#define AHCI_FSL_REG_PHY_MASK 0xff
+
+#define AHCI_FSL_PHY2_CIBGMN_SHIFT 0
+#define AHCI_FSL_PHY2_CIBGMX_SHIFT 8
+#define AHCI_FSL_PHY2_CIBGN_SHIFT 16
+#define AHCI_FSL_PHY2_CINMP_SHIFT 24
+
+#define AHCI_FSL_PHY3_CWBGMN_SHIFT 0
+#define AHCI_FSL_PHY3_CWBGMX_SHIFT 8
+#define AHCI_FSL_PHY3_CWBGN_SHIFT 16
+#define AHCI_FSL_PHY3_CWNMP_SHIFT 24
+
+#define AHCI_FSL_REG_PTC_RXWM_MASK 0x0000007f
+#define AHCI_FSL_REG_PTC_ENBD (1 << 8)
+#define AHCI_FSL_REG_PTC_ITM (1 << 9)
+
+#define AHCI_FSL_REG_PHY1_CFG ((0x1fffe & AHCI_FSL_REG_PHY1_TTA_MASK) \
+ | AHCI_FSL_REG_PHY1_SNM | AHCI_FSL_REG_PHY1_PSS \
+ | AHCI_FSL_REG_PHY1_ESDF)
+#define AHCI_FSL_REG_PHY2_CFG ((0x1f << AHCI_FSL_PHY2_CIBGMN_SHIFT) \
+ | (0x4d << AHCI_FSL_PHY2_CIBGMX_SHIFT) \
+ | (0x18 << AHCI_FSL_PHY2_CIBGN_SHIFT) \
+ | (0x28 << AHCI_FSL_PHY2_CINMP_SHIFT))
+#define AHCI_FSL_REG_PHY3_CFG ((0x09 << AHCI_FSL_PHY3_CWBGMN_SHIFT) \
+ | (0x15 << AHCI_FSL_PHY3_CWBGMX_SHIFT) \
+ | (0x08 << AHCI_FSL_PHY3_CWBGN_SHIFT) \
+ | (0x0e << AHCI_FSL_PHY3_CWNMP_SHIFT))
+/* Bit 27 enabled so value of reserved bits remains as in documentation. */
+#define AHCI_FSL_REG_PTC_CFG ((0x29 & AHCI_FSL_REG_PTC_RXWM_MASK) \
+ | (1 << 27))
+
+#define AHCI_FSL_REG_ECC 0x0
+#define AHCI_FSL_REG_ECC_DIS 0x80000000
+
+struct ahci_fsl_fdt_soc_data;
+
+struct ahci_fsl_fdt_controller {
+ struct ahci_controller ctlr; /* Must be the first field. */
+ const struct ahci_fsl_fdt_soc_data *soc_data;
+ struct resource *r_ecc;
+ int r_ecc_rid;
+};
+
+static void
+ahci_fsl_fdt_ls1046a_phy_init(struct ahci_fsl_fdt_controller *ctlr)
+{
+ struct ahci_controller *ahci;
+ uint32_t val;
+
+ ahci = &ctlr->ctlr;
+ if (ctlr->r_ecc) {
+ val = ATA_INL(ctlr->r_ecc, AHCI_FSL_REG_ECC) |
+ AHCI_FSL_REG_ECC_DIS;
+ ATA_OUTL(ctlr->r_ecc, AHCI_FSL_REG_ECC, val);
+ }
+ ATA_OUTL(ahci->r_mem, AHCI_FSL_REG_PHY1, AHCI_FSL_REG_PHY1_CFG);
+ ATA_OUTL(ahci->r_mem, AHCI_FSL_REG_PHY2, AHCI_FSL_REG_PHY2_CFG);
+ ATA_OUTL(ahci->r_mem, AHCI_FSL_REG_PHY3, AHCI_FSL_REG_PHY3_CFG);
+ ATA_OUTL(ahci->r_mem, AHCI_FSL_REG_PTC, AHCI_FSL_REG_PTC_CFG);
+}
+
+struct ahci_fsl_fdt_soc_data {
+ void (* phy_init)(struct ahci_fsl_fdt_controller *ctlr);
+};
+
+static const struct ahci_fsl_fdt_soc_data ahci_fsl_fdt_ls1046a_soc_data = {
+ .phy_init = ahci_fsl_fdt_ls1046a_phy_init,
+};
+
+static const struct ofw_compat_data ahci_fsl_fdt_compat_data[] = {
+ {"fsl,ls1046a-ahci", (uintptr_t)&ahci_fsl_fdt_ls1046a_soc_data},
+ {NULL, 0}
+};
+
+static int
+ahci_fsl_fdt_probe(device_t dev)
+{
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (!ofw_bus_search_compatible(dev, ahci_fsl_fdt_compat_data)->ocd_data)
+ return (ENXIO);
+
+ device_set_desc(dev, "NXP QorIQ Layerscape AHCI controller");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+ahci_fsl_fdt_attach(device_t dev)
+{
+ struct ahci_fsl_fdt_controller *ctlr;
+ struct ahci_controller *ahci;
+ uintptr_t ocd_data;
+ phandle_t node;
+ clk_t clock;
+ int ret;
+
+ node = ofw_bus_get_node(dev);
+ ctlr = device_get_softc(dev);
+ ocd_data = ofw_bus_search_compatible(dev,
+ ahci_fsl_fdt_compat_data)->ocd_data;
+ ctlr->soc_data = (struct ahci_fsl_fdt_soc_data *)ocd_data;
+ ahci = &ctlr->ctlr;
+ ahci->dev = dev;
+ ahci->r_rid = 0;
+ ahci->quirks = AHCI_Q_NOPMP;
+
+ ret = clk_get_by_ofw_index(dev, node, 0, &clock);
+ if (ret != 0) {
+ device_printf(dev, "No clock found.\n");
+ return (ENXIO);
+ }
+
+ ret = clk_enable(clock);
+ if (ret !=0) {
+ device_printf(dev, "Could not enable clock.\n");
+ return (ENXIO);
+ }
+
+ if (OF_hasprop(node, "reg-names") && ofw_bus_find_string_index(node,
+ "reg-names", "ahci", &ahci->r_rid)) {
+ device_printf(dev,
+ "Could not locate \"ahci\" string in the \"reg-names\" property");
+ return (ENOENT);
+ }
+
+ ahci->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
+ &ahci->r_rid, RF_ACTIVE);
+ if (!ahci->r_mem) {
+ device_printf(dev,
+ "Could not allocate resources for controller\n");
+ return (ENOMEM);
+ }
+
+ if (!ofw_bus_find_string_index(node, "reg-names", "sata-ecc",
+ &ctlr->r_ecc_rid)) {
+ ctlr->r_ecc = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
+ &ctlr->r_ecc_rid, RF_ACTIVE);
+ if (!ctlr->r_ecc) {
+ device_printf(dev,
+ "Could not allocate resources for controller\n");
+ ret = ENOMEM;
+ goto err_free_mem;
+ }
+ }
+
+ /* Setup controller defaults. */
+ ahci->numirqs = 1;
+ ctlr->soc_data->phy_init(ctlr);
+
+ /* Reset controller. */
+ ret = ahci_ctlr_reset(dev);
+ if (ret)
+ goto err_free_mem;
+
+ ret = ahci_attach(dev);
+ if (ret) {
+ device_printf(dev,
+ "Could not initialize AHCI, with error: %d\n", ret);
+ goto err_free_ecc;
+ }
+ return (0);
+
+err_free_mem:
+ bus_free_resource(dev, SYS_RES_MEMORY, ahci->r_mem);
+err_free_ecc:
+ if (ctlr->r_ecc)
+ bus_free_resource(dev, SYS_RES_MEMORY, ctlr->r_ecc);
+ return (ret);
+}
+
+static int
+ahci_fsl_fdt_detach(device_t dev)
+{
+ struct ahci_fsl_fdt_controller *ctlr;
+
+ ctlr = device_get_softc(dev);
+ if (ctlr->r_ecc)
+ bus_free_resource(dev, SYS_RES_MEMORY, ctlr->r_ecc);
+ return ahci_detach(dev);
+}
+
+static const device_method_t ahci_fsl_fdt_methods[] = {
+ DEVMETHOD(device_probe, ahci_fsl_fdt_probe),
+ DEVMETHOD(device_attach, ahci_fsl_fdt_attach),
+ DEVMETHOD(device_detach, ahci_fsl_fdt_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 driver_t ahci_fsl_fdt_driver = {
+ "ahci",
+ ahci_fsl_fdt_methods,
+ sizeof(struct ahci_fsl_fdt_controller),
+};
+
+static devclass_t ahci_fsl_fdt_devclass;
+DRIVER_MODULE(ahci_fsl, simplebus, ahci_fsl_fdt_driver, ahci_fsl_fdt_devclass,
+ NULL, NULL);
+DRIVER_MODULE(ahci_fsl, ofwbus, ahci_fsl_fdt_driver, ahci_fsl_fdt_devclass,
+ NULL, NULL);
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