From nobody Thu Jan 05 04:17:16 2023 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4NnY8X6GcFz2pBkw; Thu, 5 Jan 2023 04:17:16 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4NnY8X4B4kz4DqC; Thu, 5 Jan 2023 04:17:16 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1672892236; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Dw9Xue+bU9smkcpFc/IE4x1OjLX4cEKFJp0iyXCpu+M=; b=ipzXPxkEkzKCrWKcUV/npL77mv7EBgsaIh+5aLmh9Z4n+bf9PafQ8mM6SBALJSQTjGkskI tXw4p6mIn9Qg1wNUE6kShZTc4rcV6kIn/f6wVmtbwAnpuYUgUpc+qHTf4Q6OpFPSlWyKu0 FXPoe6awLaiDq8zFJbNd8jwbym1ZMZ01cWzFRVKhoC1ctx1ert9lNzRNNFY36AitH4fy0I Og6GPj1vdoksVnPiE1cI1sHUcC0iyBtcSjzX5khz4kC0extj5r8VGYO9t3w4/0IgbIsQNh CwK8Ba1HoiRacVJpQn0jMfFamU3e+edmyHNR3M/1NTUhDDnqF37C4B3wiqjU2w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1672892236; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=Dw9Xue+bU9smkcpFc/IE4x1OjLX4cEKFJp0iyXCpu+M=; b=eVa1mnmjRdfIKVTdhEIuXfyJ1jopJvNERSBcsRVP0i5QaxV6zskiGu1lAaRHPkdiIV/L6s 0cxJjgexuh77QS47Wd566trk4n+e8WwW8d23wJTSM4nRT0deslCsKFEsDffXWEAS5UOFew jewDHlPoPTLxOBiqYxUBbkhdaanPfxxnKEs2/flLxwROfbQQe9eUnovBnZ/tFVokR458VP dYyJlT5BUVsmrAdkIqEJEj1veB5fiIXfLjMwEUwqTSzp3aJzDp2H+2fGb+D+qhoDa51Qtg xXKYTWcGeLAUluTDk4E/cVOCpDXsGQzLypp4GAdHCP0Ex0QTv/iddCxm/vgzyA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1672892236; a=rsa-sha256; cv=none; b=xkMCps/dCUVT4JLVfVHWpSmRk66z0bpyXJbD2iehQ/4e9Ol3SCHTtyh/4vn6fs+q0bZf8X v90VIbo1V3tft9px4mbvVFmH7yF4gqjcExijarxs3i4qanIVGJGjns83YG0SvIugQj88WF eVst7pG/8xTucVplNvouyj6W2bn2rVW1w+Au3OqH6E5b0RCrvBQv3jq6E6zMhEjxlL5Jq+ z8JIR1U46Cc/xJe948voKCckZ45fy8k4Y5KbULY4lgS1honImVNs3KY+GjYx9K6b8obd8N LBbdnEwVo+ISG+we0uip6nXuX6oBdceiiWHULeFUaM1/di6ww0aA+owrF3Ng/A== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4NnY8X39vXzd6d; Thu, 5 Jan 2023 04:17:16 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 3054HGtd059952; Thu, 5 Jan 2023 04:17:16 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 3054HGgR059951; Thu, 5 Jan 2023 04:17:16 GMT (envelope-from git) Date: Thu, 5 Jan 2023 04:17:16 GMT Message-Id: <202301050417.3054HGgR059951@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Ganbold Tsagaankhuu Subject: git: 7daf96523b37 - main - Add PCIe driver for RK3568 SoC. List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: ganbold X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 7daf96523b378e08a513722bc5354400919ccf2b Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by ganbold: URL: https://cgit.FreeBSD.org/src/commit/?id=7daf96523b378e08a513722bc5354400919ccf2b commit 7daf96523b378e08a513722bc5354400919ccf2b Author: Søren Schmidt AuthorDate: 2023-01-05 04:15:56 +0000 Commit: Ganbold Tsagaankhuu CommitDate: 2023-01-05 04:15:56 +0000 Add PCIe driver for RK3568 SoC. PCIe3 ports work, however PCIe2x1 is not working yet in this case as it depends on Naneng Combo Phy driver. --- sys/arm64/rockchip/rk3568_pcie.c | 394 ++++++++++++++++++++++++++++++++++++ sys/arm64/rockchip/rk3568_pciephy.c | 227 +++++++++++++++++++++ sys/conf/files.arm64 | 2 + 3 files changed, 623 insertions(+) diff --git a/sys/arm64/rockchip/rk3568_pcie.c b/sys/arm64/rockchip/rk3568_pcie.c new file mode 100644 index 000000000000..0cca73ff0402 --- /dev/null +++ b/sys/arm64/rockchip/rk3568_pcie.c @@ -0,0 +1,394 @@ +/*- + * Copyright (c) 2021, 2022 Soren Schmidt + * + * 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, + * without modification, immediately at the beginning of the file. + * 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 ``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 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. + * + * $Id: rk3568_pcie.c 893 2022-07-26 09:47:22Z sos $ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include + +#include "pcib_if.h" + +/* APB Registers */ +#define PCIE_CLIENT_GENERAL_CON 0x0000 +#define DEVICE_TYPE_MASK 0x00f0 +#define DEVICE_TYPE_RC (1<<6) +#define LINK_REQ_RST_GRT (1<<3) +#define LTSSM_ENABLE (1<<2) +#define PCIE_CLIENT_INTR_MASK_MSG_RX 0x0018 +#define PCIE_CLIENT_INTR_MASK_LEGACY 0x001c +#define PCIE_CLIENT_INTR_MASK_ERR 0x0020 +#define PCIE_CLIENT_INTR_MASK_MISC 0x0024 +#define PCIE_CLIENT_INTR_MASK_PMC 0x0028 +#define PCIE_CLIENT_GENERAL_DEBUG_INFO 0x0104 +#define PCIE_CLIENT_HOT_RESET_CTRL 0x0180 +#define APP_LSSTM_ENABLE_ENHANCE (1<<4) +#define PCIE_CLIENT_LTSSM_STATUS 0x0300 +#define RDLH_LINK_UP (1<<17) +#define SMLH_LINK_UP (1<<16) +#define SMLH_LTSSM_STATE_MASK 0x003f +#define SMLH_LTSSM_STATE_LINK_UP ((1<<4) | (1<<0)) + +struct rk3568_pcie_softc { + struct pci_dw_softc dw_sc; /* Must be first */ + device_t dev; + int apb_rid; + struct resource *apb_res; + int dbi_rid; + struct resource *dbi_res; + int irq_rid; + struct resource *irq_res; + void *irq_handle; + phandle_t node; + struct gpiobus_pin *reset_gpio; + clk_t aclk_mst, aclk_slv, aclk_dbi, pclk, aux; + regulator_t regulator; + hwreset_t hwreset; + phy_t phy; +}; + +static struct ofw_compat_data compat_data[] = { + {"rockchip,rk3568-pcie", 1}, + {NULL, 0} +}; + + +static void +rk3568_intr(void *data) +{ + struct rk3568_pcie_softc *sc = data; + + device_printf(sc->dev, "INTERRUPT!!\n"); +} + +static int +rk3568_pcie_get_link(device_t dev, bool *status) +{ + struct rk3568_pcie_softc *sc = device_get_softc(dev); + uint32_t val; + + val = bus_read_4(sc->apb_res, PCIE_CLIENT_LTSSM_STATUS); + if (((val & (RDLH_LINK_UP | SMLH_LINK_UP)) == + (RDLH_LINK_UP | SMLH_LINK_UP)) && + ((val & SMLH_LTSSM_STATE_MASK) == SMLH_LTSSM_STATE_LINK_UP)) + *status = true; + else + *status = false; + return (0); +} + +static int +rk3568_pcie_init_soc(device_t dev) +{ + struct rk3568_pcie_softc *sc = device_get_softc(dev); + int err, count; + bool status; + + /* Assert reset */ + if (hwreset_assert(sc->hwreset)) + device_printf(dev, "Could not assert reset\n"); + + /* Powerup PCIe */ + if (regulator_enable(sc->regulator)) + device_printf(dev, "Cannot enable regulator\n"); + + /* Enable PHY */ + if (phy_enable(sc->phy)) + device_printf(dev, "Cannot enable phy\n"); + + /* Deassert reset */ + if (hwreset_deassert(sc->hwreset)) + device_printf(dev, "Could not deassert reset\n"); + + /* Enable clocks */ + if ((err = clk_enable(sc->aclk_mst))) { + device_printf(dev, "Could not enable aclk_mst clk\n"); + return (ENXIO); + } + if ((err = clk_enable(sc->aclk_slv))) { + device_printf(dev, "Could not enable aclk_slv clk\n"); + return (ENXIO); + } + if ((err = clk_enable(sc->aclk_dbi))) { + device_printf(dev, "Could not enable aclk_dbi clk\n"); + return (ENXIO); + } + if ((err = clk_enable(sc->pclk))) { + device_printf(dev, "Could not enable pclk clk\n"); + return (ENXIO); + } + if ((err = clk_enable(sc->aux))) { + device_printf(dev, "Could not enable aux clk\n"); + return (ENXIO); + } + + /* Set Root Complex (RC) mode */ + bus_write_4(sc->apb_res, PCIE_CLIENT_HOT_RESET_CTRL, + (APP_LSSTM_ENABLE_ENHANCE << 16) | APP_LSSTM_ENABLE_ENHANCE); + bus_write_4(sc->apb_res, PCIE_CLIENT_GENERAL_CON, + (DEVICE_TYPE_MASK << 16) | DEVICE_TYPE_RC); + + /* Assert reset PCIe */ + if ((err = gpio_pin_set_active(sc->reset_gpio, false))) + device_printf(dev, "reset_gpio set failed\n"); + + /* Start Link Training and Status State Machine (LTSSM) */ + bus_write_4(sc->apb_res, PCIE_CLIENT_GENERAL_CON, + (LINK_REQ_RST_GRT | LTSSM_ENABLE) << 16 | + (LINK_REQ_RST_GRT | LTSSM_ENABLE)); + DELAY(100000); + + /* Release reset */ + if ((err = gpio_pin_set_active(sc->reset_gpio, true))) + device_printf(dev, "reset_gpio release failed\n"); + + /* Wait for link up/stable */ + for (count = 20; count; count--) { + rk3568_pcie_get_link(dev, &status); + if (status) + break; + DELAY(100000); + if (count == 0) { + device_printf(dev, "Link up timeout!\n"); + return (ENXIO); + } + } + + if ((err = pci_dw_init(dev))) + return (ENXIO); + + /* Enable all MSG interrupts */ + bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_MSG_RX, 0x7fff0000); + + /* Enable all Legacy interrupts */ + bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_LEGACY, 0x00ff0000); + + /* Enable all Error interrupts */ + bus_write_4(sc->apb_res, PCIE_CLIENT_INTR_MASK_ERR, 0x0fff0000); + + return (0); +} + +static int +rk3568_pcie_detach(device_t dev) +{ + struct rk3568_pcie_softc *sc = device_get_softc(dev); + + /* Release allocated resources */ + if (sc->irq_handle) + bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); + if (sc->phy) + phy_release(sc->phy); + if (sc->aux) + clk_release(sc->aux); + if (sc->pclk) + clk_release(sc->pclk); + if (sc->aclk_dbi) + clk_release(sc->aclk_dbi); + if (sc->aclk_slv) + clk_release(sc->aclk_slv); + if (sc->aclk_mst) + clk_release(sc->aclk_mst); + if (sc->hwreset) + hwreset_release(sc->hwreset); + if (sc->regulator) + regulator_release(sc->regulator); + if (sc->irq_res) + bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, + sc->irq_res); + if (sc->dbi_res) + bus_release_resource(dev, SYS_RES_MEMORY, sc->dbi_rid, + sc->dbi_res); + if (sc->apb_res) + bus_release_resource(dev, SYS_RES_MEMORY, sc->apb_rid, + sc->apb_res); + return (0); +} + +static int +rk3568_pcie_attach(device_t dev) +{ + struct rk3568_pcie_softc *sc = device_get_softc(dev); + int error; + + sc->dev = dev; + sc->node = ofw_bus_get_node(dev); + + /* Setup resources */ + if ((error = ofw_bus_find_string_index(sc->node, "reg-names", "apb", + &sc->apb_rid))) { + device_printf(dev, "Cannot get APB memory: %d\n", error); + goto fail; + } + if (!(sc->apb_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &sc->apb_rid, RF_ACTIVE))) { + device_printf(dev, "Cannot allocate APB resource\n"); + goto fail; + } + if ((error = ofw_bus_find_string_index(sc->node, "reg-names", "dbi", + &sc->dbi_rid))) { + device_printf(dev, "Cannot get DBI memory: %d\n", error); + goto fail; + } + if (!(sc->dw_sc.dbi_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &sc->dbi_rid, RF_ACTIVE))) { + device_printf(dev, "Cannot allocate DBI resource\n"); + goto fail; + } + + if (!(sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, + &sc->irq_rid, RF_ACTIVE | RF_SHAREABLE))) { + device_printf(dev, "Cannot allocate IRQ resource\n"); + goto fail; + } + + /* Get regulator if present */ + if (regulator_get_by_ofw_property(dev, 0, "vpcie3v3-supply", + &sc->regulator)) { + device_printf(dev, "Cannot get regulator\n"); + goto fail; + } + + /* Get reset */ + if (hwreset_get_by_ofw_name(dev, 0, "pipe", &sc->hwreset)) { + device_printf(dev, "Can not get reset\n"); + goto fail; + } + + /* Get GPIO reset */ + if (OF_hasprop(sc->node, "reset-gpios")) { + if (gpio_pin_get_by_ofw_property(dev, sc->node, "reset-gpios", + &sc->reset_gpio)) { + device_printf(dev, "Cannot get reset-gpios\n"); + goto fail; + } + gpio_pin_setflags(sc->reset_gpio, GPIO_PIN_OUTPUT); + gpio_pin_set_active(sc->reset_gpio, true); + } + + /* Get clocks */ + if (clk_get_by_ofw_name(dev, 0, "aclk_mst", &sc->aclk_mst)) { + device_printf(dev, "Can not get aclk_mst clk\n"); + goto fail; + } + if (clk_get_by_ofw_name(dev, 0, "aclk_slv", &sc->aclk_slv)) { + device_printf(dev, "Can not get aclk_slv clk\n"); + goto fail; + } + if (clk_get_by_ofw_name(dev, 0, "aclk_dbi", &sc->aclk_dbi)) { + device_printf(dev, "Can not get aclk_dbi clk\n"); + goto fail; + } + if (clk_get_by_ofw_name(dev, 0, "pclk", &sc->pclk)) { + device_printf(dev, "Can not get pclk clk\n"); + goto fail; + } + if (clk_get_by_ofw_name(dev, 0, "aux", &sc->aux)) { + device_printf(dev, "Can not get aux clk\n"); + goto fail; + } + + /* Get PHY */ + if (phy_get_by_ofw_name(dev, 0, "pcie-phy", &sc->phy)) { + device_printf(dev, "Cannot get 'pcie-phy'\n"); + goto fail; + } + + if ((error = rk3568_pcie_init_soc(dev))) + goto fail; + + /* Enable interrupt */ + if ((bus_setup_intr(dev, sc->irq_res, INTR_TYPE_MISC | INTR_MPSAFE, + NULL, rk3568_intr, sc, &sc->irq_handle))) { + device_printf(dev, "unable to setup interrupt\n"); + goto fail; + } + + return (bus_generic_attach(dev)); +fail: + rk3568_pcie_detach(dev); + return (ENXIO); +} + +static int +rk3568_pcie_probe(device_t dev) +{ + + if (!ofw_bus_status_okay(dev)) + return (ENXIO); + if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data) + return (ENXIO); + device_set_desc(dev, "RockChip RK3568 PCI-express controller"); + return (BUS_PROBE_DEFAULT); +} + +static device_method_t rk3568_pcie_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, rk3568_pcie_probe), + DEVMETHOD(device_attach, rk3568_pcie_attach), + DEVMETHOD(device_detach, rk3568_pcie_detach), + + /* PCI DW interface */ + DEVMETHOD(pci_dw_get_link, rk3568_pcie_get_link), + + DEVMETHOD_END +}; + +DEFINE_CLASS_1(pcib, rk3568_pcie_driver, rk3568_pcie_methods, + sizeof(struct rk3568_pcie_softc), pci_dw_driver); +DRIVER_MODULE(mv_pcie, simplebus, rk3568_pcie_driver, NULL, NULL); diff --git a/sys/arm64/rockchip/rk3568_pciephy.c b/sys/arm64/rockchip/rk3568_pciephy.c new file mode 100644 index 000000000000..0a1880e8d831 --- /dev/null +++ b/sys/arm64/rockchip/rk3568_pciephy.c @@ -0,0 +1,227 @@ +/*- + * Copyright (c) 2021, 2022 Soren Schmidt + * + * 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. + * + * $Id: rk3568_pciephy.c 893 2022-07-26 09:47:22Z sos $ + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#include + +#include "syscon_if.h" +#include "phydev_if.h" +#include "phynode_if.h" + +#define GRF_PCIE30PHY_CON1 0x04 +#define GRF_PCIE30PHY_CON4 0x10 +#define GRF_PCIE30PHY_CON6 0x18 +#define GRF_BIFURCATION_LANE_0_1 (1 << 0) +#define GRF_BIFURCATION_LANE_2_3 (1 << 1) +#define GRF_PCIE30PHY_WR_EN (0xf << 16) +#define GRF_PCIE30PHY_CON9 0x24 +#define GRF_PCIE30PHY_DA_OCM ((1 << 15) | (1 << (15 + 16))) +#define GRF_PCIE30PHY_STATUS0 0x80 +#define SRAM_INIT_DONE (1 << 14) + +static struct ofw_compat_data compat_data[] = { + {"rockchip,rk3568-pcie3-phy", 1}, + {NULL, 0} +}; + +struct rk3568_pciephy_softc { + device_t dev; + phandle_t node; + struct resource *mem; + struct phynode *phynode; + struct syscon *phy_grf; + clk_t refclk_m; + clk_t refclk_n; + clk_t pclk; + hwreset_t phy_reset; +}; + + +/* PHY class and methods */ +static int +rk3568_pciephy_enable(struct phynode *phynode, bool enable) +{ + device_t dev = phynode_get_device(phynode); + struct rk3568_pciephy_softc *sc = device_get_softc(dev); + int count; + + if (enable) { + /* Deassert PCIe PMA output clamp mode */ + SYSCON_WRITE_4(sc->phy_grf, GRF_PCIE30PHY_CON9, + GRF_PCIE30PHY_DA_OCM); + + /* Set bifurcation according to DT entry */ + if (OF_hasprop(sc->node, "rockchip,bifurcation")) { + SYSCON_WRITE_4(sc->phy_grf, GRF_PCIE30PHY_CON6, + GRF_PCIE30PHY_WR_EN | GRF_BIFURCATION_LANE_0_1); + SYSCON_WRITE_4(sc->phy_grf, GRF_PCIE30PHY_CON1, + GRF_PCIE30PHY_DA_OCM); + device_printf(dev, "setup 2 x PCIeX1\n"); + } + else + device_printf(dev, "setup 1 x PCIeX2\n"); + + hwreset_deassert(sc->phy_reset); + + /* Poll for SRAM loaded and ready */ + for (count = 100; count; count--) { + if (SYSCON_READ_4(sc->phy_grf, GRF_PCIE30PHY_STATUS0) & + SRAM_INIT_DONE) + break; + DELAY(10000); + if (count == 0) { + device_printf(dev, "SRAM init timeout!\n"); + return (ENXIO); + } + } + } + return (0); +} + +static phynode_method_t rk3568_pciephy_phynode_methods[] = { + PHYNODEMETHOD(phynode_enable, rk3568_pciephy_enable), + + PHYNODEMETHOD_END +}; +DEFINE_CLASS_1(rk3568_pciephy_phynode, rk3568_pciephy_phynode_class, + rk3568_pciephy_phynode_methods, 0, phynode_class); + + +/* Device class and methods */ +static int +rk3568_pciephy_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, "RockChip PCIe PHY"); + return (BUS_PROBE_DEFAULT); +} + +static int +rk3568_pciephy_attach(device_t dev) +{ + struct rk3568_pciephy_softc *sc = device_get_softc(dev); + struct phynode_init_def phy_init; + struct phynode *phynode; + int rid = 0; + + sc->dev = dev; + sc->node = ofw_bus_get_node(dev); + + /* Get memory resource */ + if (!(sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, + RF_ACTIVE))) { + device_printf(dev, "Cannot allocate memory resources\n"); + return (ENXIO); + } + + /* Get syncons handle */ + if (OF_hasprop(sc->node, "rockchip,phy-grf") && + syscon_get_by_ofw_property(dev, sc->node, "rockchip,phy-grf", + &sc->phy_grf)) + return (ENXIO); + + /* Get & enable clocks */ + if (clk_get_by_ofw_name(dev, 0, "refclk_m", &sc->refclk_m)) { + device_printf(dev, "getting refclk_m failed\n"); + return (ENXIO); + } + if (clk_enable(sc->refclk_m)) + device_printf(dev, "enable refclk_m failed\n"); + if (clk_get_by_ofw_name(dev, 0, "refclk_n", &sc->refclk_n)) { + device_printf(dev, "getting refclk_n failed\n"); + return (ENXIO); + } + if (clk_enable(sc->refclk_n)) + device_printf(dev, "enable refclk_n failed\n"); + if (clk_get_by_ofw_name(dev, 0, "pclk", &sc->pclk)) { + device_printf(dev, "getting pclk failed\n"); + return (ENXIO); + } + if (clk_enable(sc->pclk)) + device_printf(dev, "enable pclk failed\n"); + + /* Get & assert reset */ + if (hwreset_get_by_ofw_idx(dev, sc->node, 0, &sc->phy_reset)) { + device_printf(dev, "Cannot get reset\n"); + } + else + hwreset_assert(sc->phy_reset); + + /* Set RC/EP mode not implemented yet (RC mode only) */ + + bzero(&phy_init, sizeof(phy_init)); + phy_init.id = PHY_NONE; + phy_init.ofw_node = sc->node; + if (!(phynode = phynode_create(dev, &rk3568_pciephy_phynode_class, + &phy_init))) { + device_printf(dev, "failed to create pciephy PHY\n"); + return (ENXIO); + } + if (!phynode_register(phynode)) { + device_printf(dev, "failed to register pciephy PHY\n"); + return (ENXIO); + } + sc->phynode = phynode; + + return (0); +} + +static device_method_t rk3568_pciephy_methods[] = { + DEVMETHOD(device_probe, rk3568_pciephy_probe), + DEVMETHOD(device_attach, rk3568_pciephy_attach), + + DEVMETHOD_END +}; + +DEFINE_CLASS_1(rk3568_pciephy, rk3568_pciephy_driver, rk3568_pciephy_methods, + sizeof(struct simple_mfd_softc), simple_mfd_driver); +EARLY_DRIVER_MODULE(rk3568_pciephy, simplebus, rk3568_pciephy_driver, + 0, 0, BUS_PASS_RESOURCE + BUS_PASS_ORDER_LATE); diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64 index b83188b6bb28..df39a408867d 100644 --- a/sys/conf/files.arm64 +++ b/sys/conf/files.arm64 @@ -622,6 +622,8 @@ arm64/qualcomm/qcom_gcc.c optional qcom_gcc fdt # RockChip Drivers arm64/rockchip/rk3328_codec.c optional fdt rk3328codec soc_rockchip_rk3328 arm64/rockchip/rk3399_emmcphy.c optional fdt rk_emmcphy soc_rockchip_rk3399 +arm64/rockchip/rk3568_pcie.c optional fdt pci soc_rockchip_rk3568 +arm64/rockchip/rk3568_pciephy.c optional fdt pci soc_rockchip_rk3568 arm64/rockchip/rk_dwc3.c optional fdt rk_dwc3 soc_rockchip_rk3399 | fdt rk_dwc3 soc_rockchip_rk3568 arm64/rockchip/rk_i2c.c optional fdt rk_i2c soc_rockchip_rk3328 | fdt rk_i2c soc_rockchip_rk3399 | fdt rk_i2c soc_rockchip_rk3568 arm64/rockchip/rk_i2s.c optional fdt sound soc_rockchip_rk3328 | fdt sound soc_rockchip_rk3399