2 * Copyright (c) 2016 Michal Meloun <mmel@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 * Nvidia Integrated PCI/PCI-Express controller driver.
34 #include <sys/param.h>
35 #include <sys/systm.h>
37 #include <sys/devmap.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/module.h>
42 #include <sys/mutex.h>
45 #include <machine/intr.h>
48 #include <vm/vm_extern.h>
49 #include <vm/vm_kern.h>
52 #include <dev/extres/clk/clk.h>
53 #include <dev/extres/hwreset/hwreset.h>
54 #include <dev/extres/phy/phy.h>
55 #include <dev/extres/regulator/regulator.h>
56 #include <dev/ofw/ofw_bus.h>
57 #include <dev/ofw/ofw_bus_subr.h>
58 #include <dev/ofw/ofw_pci.h>
59 #include <dev/ofw/ofwpci.h>
60 #include <dev/pci/pcivar.h>
61 #include <dev/pci/pcireg.h>
62 #include <dev/pci/pcib_private.h>
64 #include <machine/resource.h>
65 #include <machine/bus.h>
67 #include <arm/nvidia/tegra_pmc.h>
69 #include "ofw_bus_if.h"
74 #define AFI_AXI_BAR0_SZ 0x000
75 #define AFI_AXI_BAR1_SZ 0x004
76 #define AFI_AXI_BAR2_SZ 0x008
77 #define AFI_AXI_BAR3_SZ 0x00c
78 #define AFI_AXI_BAR4_SZ 0x010
79 #define AFI_AXI_BAR5_SZ 0x014
80 #define AFI_AXI_BAR0_START 0x018
81 #define AFI_AXI_BAR1_START 0x01c
82 #define AFI_AXI_BAR2_START 0x020
83 #define AFI_AXI_BAR3_START 0x024
84 #define AFI_AXI_BAR4_START 0x028
85 #define AFI_AXI_BAR5_START 0x02c
86 #define AFI_FPCI_BAR0 0x030
87 #define AFI_FPCI_BAR1 0x034
88 #define AFI_FPCI_BAR2 0x038
89 #define AFI_FPCI_BAR3 0x03c
90 #define AFI_FPCI_BAR4 0x040
91 #define AFI_FPCI_BAR5 0x044
92 #define AFI_MSI_BAR_SZ 0x060
93 #define AFI_MSI_FPCI_BAR_ST 0x064
94 #define AFI_MSI_AXI_BAR_ST 0x068
95 #define AFI_MSI_VEC(x) (0x06c + 4 * (x))
96 #define AFI_MSI_EN_VEC(x) (0x08c + 4 * (x))
97 #define AFI_MSI_INTR_IN_REG 32
98 #define AFI_MSI_REGS 8
100 #define AFI_CONFIGURATION 0x0ac
101 #define AFI_CONFIGURATION_EN_FPCI (1 << 0)
103 #define AFI_FPCI_ERROR_MASKS 0x0b0
104 #define AFI_INTR_MASK 0x0b4
105 #define AFI_INTR_MASK_MSI_MASK (1 << 8)
106 #define AFI_INTR_MASK_INT_MASK (1 << 0)
108 #define AFI_INTR_CODE 0x0b8
109 #define AFI_INTR_CODE_MASK 0xf
110 #define AFI_INTR_CODE_INT_CODE_INI_SLVERR 1
111 #define AFI_INTR_CODE_INT_CODE_INI_DECERR 2
112 #define AFI_INTR_CODE_INT_CODE_TGT_SLVERR 3
113 #define AFI_INTR_CODE_INT_CODE_TGT_DECERR 4
114 #define AFI_INTR_CODE_INT_CODE_TGT_WRERR 5
115 #define AFI_INTR_CODE_INT_CODE_SM_MSG 6
116 #define AFI_INTR_CODE_INT_CODE_DFPCI_DECERR 7
117 #define AFI_INTR_CODE_INT_CODE_AXI_DECERR 8
118 #define AFI_INTR_CODE_INT_CODE_FPCI_TIMEOUT 9
119 #define AFI_INTR_CODE_INT_CODE_PE_PRSNT_SENSE 10
120 #define AFI_INTR_CODE_INT_CODE_PE_CLKREQ_SENSE 11
121 #define AFI_INTR_CODE_INT_CODE_CLKCLAMP_SENSE 12
122 #define AFI_INTR_CODE_INT_CODE_RDY4PD_SENSE 13
123 #define AFI_INTR_CODE_INT_CODE_P2P_ERROR 14
125 #define AFI_INTR_SIGNATURE 0x0bc
126 #define AFI_UPPER_FPCI_ADDRESS 0x0c0
127 #define AFI_SM_INTR_ENABLE 0x0c4
128 #define AFI_SM_INTR_RP_DEASSERT (1 << 14)
129 #define AFI_SM_INTR_RP_ASSERT (1 << 13)
130 #define AFI_SM_INTR_HOTPLUG (1 << 12)
131 #define AFI_SM_INTR_PME (1 << 11)
132 #define AFI_SM_INTR_FATAL_ERROR (1 << 10)
133 #define AFI_SM_INTR_UNCORR_ERROR (1 << 9)
134 #define AFI_SM_INTR_CORR_ERROR (1 << 8)
135 #define AFI_SM_INTR_INTD_DEASSERT (1 << 7)
136 #define AFI_SM_INTR_INTC_DEASSERT (1 << 6)
137 #define AFI_SM_INTR_INTB_DEASSERT (1 << 5)
138 #define AFI_SM_INTR_INTA_DEASSERT (1 << 4)
139 #define AFI_SM_INTR_INTD_ASSERT (1 << 3)
140 #define AFI_SM_INTR_INTC_ASSERT (1 << 2)
141 #define AFI_SM_INTR_INTB_ASSERT (1 << 1)
142 #define AFI_SM_INTR_INTA_ASSERT (1 << 0)
144 #define AFI_AFI_INTR_ENABLE 0x0c8
145 #define AFI_AFI_INTR_ENABLE_CODE(code) (1 << (code))
147 #define AFI_PCIE_CONFIG 0x0f8
148 #define AFI_PCIE_CONFIG_PCIE_DISABLE(x) (1 << ((x) + 1))
149 #define AFI_PCIE_CONFIG_PCIE_DISABLE_ALL 0x6
150 #define AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_MASK (0xf << 20)
151 #define AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_XBAR2_1 (0x0 << 20)
152 #define AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_XBAR4_1 (0x1 << 20)
154 #define AFI_FUSE 0x104
155 #define AFI_FUSE_PCIE_T0_GEN2_DIS (1 << 2)
157 #define AFI_PEX0_CTRL 0x110
158 #define AFI_PEX1_CTRL 0x118
159 #define AFI_PEX2_CTRL 0x128
160 #define AFI_PEX_CTRL_OVERRIDE_EN (1 << 4)
161 #define AFI_PEX_CTRL_REFCLK_EN (1 << 3)
162 #define AFI_PEX_CTRL_CLKREQ_EN (1 << 1)
163 #define AFI_PEX_CTRL_RST_L (1 << 0)
165 #define AFI_AXI_BAR6_SZ 0x134
166 #define AFI_AXI_BAR7_SZ 0x138
167 #define AFI_AXI_BAR8_SZ 0x13c
168 #define AFI_AXI_BAR6_START 0x140
169 #define AFI_AXI_BAR7_START 0x144
170 #define AFI_AXI_BAR8_START 0x148
171 #define AFI_FPCI_BAR6 0x14c
172 #define AFI_FPCI_BAR7 0x150
173 #define AFI_FPCI_BAR8 0x154
174 #define AFI_PLLE_CONTROL 0x160
175 #define AFI_PLLE_CONTROL_BYPASS_PADS2PLLE_CONTROL (1 << 9)
176 #define AFI_PLLE_CONTROL_BYPASS_PCIE2PLLE_CONTROL (1 << 8)
177 #define AFI_PLLE_CONTROL_PADS2PLLE_CONTROL_EN (1 << 1)
178 #define AFI_PLLE_CONTROL_PCIE2PLLE_CONTROL_EN (1 << 0)
180 #define AFI_PEXBIAS_CTRL 0x168
182 /* FPCI Address space */
183 #define FPCI_MAP_IO 0xfdfc000000ULL
184 #define FPCI_MAP_TYPE0_CONFIG 0xfdfc000000ULL
185 #define FPCI_MAP_TYPE1_CONFIG 0xfdff000000ULL
186 #define FPCI_MAP_EXT_TYPE0_CONFIG 0xfe00000000ULL
187 #define FPCI_MAP_EXT_TYPE1_CONFIG 0xfe10000000ULL
189 /* Configuration space */
190 #define RP_VEND_XP 0x00000F00
191 #define RP_VEND_XP_DL_UP (1 << 30)
193 #define RP_PRIV_MISC 0x00000FE0
194 #define RP_PRIV_MISC_PRSNT_MAP_EP_PRSNT (0xE << 0)
195 #define RP_PRIV_MISC_PRSNT_MAP_EP_ABSNT (0xF << 0)
197 #define RP_LINK_CONTROL_STATUS 0x00000090
198 #define RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE 0x20000000
199 #define RP_LINK_CONTROL_STATUS_LINKSTAT_MASK 0x3fff0000
201 /* Wait 50 ms (per port) for link. */
202 #define TEGRA_PCIE_LINKUP_TIMEOUT 50000
204 #define TEGRA_PCIB_MSI_ENABLE
208 #define debugf(fmt, args...) do { printf(fmt,##args); } while (0)
210 #define debugf(fmt, args...)
214 * Configuration space format:
215 * [27:24] extended register
217 * [15:11] slot (device)
221 #define PCI_CFG_EXT_REG(reg) ((((reg) >> 8) & 0x0f) << 24)
222 #define PCI_CFG_BUS(bus) (((bus) & 0xff) << 16)
223 #define PCI_CFG_DEV(dev) (((dev) & 0x1f) << 11)
224 #define PCI_CFG_FUN(fun) (((fun) & 0x07) << 8)
225 #define PCI_CFG_BASE_REG(reg) ((reg) & 0xff)
227 #define PADS_WR4(_sc, _r, _v) bus_write_4((_sc)-pads_mem_res, (_r), (_v))
228 #define PADS_RD4(_sc, _r) bus_read_4((_sc)->pads_mem_res, (_r))
229 #define AFI_WR4(_sc, _r, _v) bus_write_4((_sc)->afi_mem_res, (_r), (_v))
230 #define AFI_RD4(_sc, _r) bus_read_4((_sc)->afi_mem_res, (_r))
233 bus_size_t axi_start;
234 bus_size_t fpci_start;
237 {AFI_AXI_BAR0_START, AFI_FPCI_BAR0, AFI_AXI_BAR0_SZ}, /* BAR 0 */
238 {AFI_AXI_BAR1_START, AFI_FPCI_BAR1, AFI_AXI_BAR1_SZ}, /* BAR 1 */
239 {AFI_AXI_BAR2_START, AFI_FPCI_BAR2, AFI_AXI_BAR2_SZ}, /* BAR 2 */
240 {AFI_AXI_BAR3_START, AFI_FPCI_BAR3, AFI_AXI_BAR3_SZ}, /* BAR 3 */
241 {AFI_AXI_BAR4_START, AFI_FPCI_BAR4, AFI_AXI_BAR4_SZ}, /* BAR 4 */
242 {AFI_AXI_BAR5_START, AFI_FPCI_BAR5, AFI_AXI_BAR5_SZ}, /* BAR 5 */
243 {AFI_AXI_BAR6_START, AFI_FPCI_BAR6, AFI_AXI_BAR6_SZ}, /* BAR 6 */
244 {AFI_AXI_BAR7_START, AFI_FPCI_BAR7, AFI_AXI_BAR7_SZ}, /* BAR 7 */
245 {AFI_AXI_BAR8_START, AFI_FPCI_BAR8, AFI_AXI_BAR8_SZ}, /* BAR 8 */
246 {AFI_MSI_AXI_BAR_ST, AFI_MSI_FPCI_BAR_ST, AFI_MSI_BAR_SZ}, /* MSI 9 */
249 /* Compatible devices. */
250 static struct ofw_compat_data compat_data[] = {
251 {"nvidia,tegra124-pcie", 1},
255 #define TEGRA_FLAG_MSI_USED 0x0001
256 struct tegra_pcib_irqsrc {
257 struct intr_irqsrc isrc;
262 struct tegra_pcib_port {
264 int port_idx; /* chip port index */
265 int num_lanes; /* number of lanes */
266 bus_size_t afi_pex_ctrl; /* offset of afi_pex_ctrl */
267 phy_t phy; /* port phy */
269 /* Config space properties. */
270 bus_addr_t rp_base_addr; /* PA of config window */
271 bus_size_t rp_size; /* size of config window */
272 bus_space_handle_t cfg_handle; /* handle of config window */
275 #define TEGRA_PCIB_MAX_PORTS 3
276 #define TEGRA_PCIB_MAX_MSI AFI_MSI_INTR_IN_REG * AFI_MSI_REGS
277 struct tegra_pcib_softc {
278 struct ofw_pci_softc ofw_pci;
281 struct resource *pads_mem_res;
282 struct resource *afi_mem_res;
283 struct resource *cfg_mem_res;
284 struct resource *irq_res;
285 struct resource *msi_irq_res;
287 void *msi_intr_cookie;
289 struct ofw_pci_range mem_range;
290 struct ofw_pci_range pref_mem_range;
291 struct ofw_pci_range io_range;
297 hwreset_t hwreset_pex;
298 hwreset_t hwreset_afi;
299 hwreset_t hwreset_pcie_x;
300 regulator_t supply_avddio_pex;
301 regulator_t supply_dvddio_pex;
302 regulator_t supply_avdd_pex_pll;
303 regulator_t supply_hvdd_pex;
304 regulator_t supply_hvdd_pex_pll_e;
305 regulator_t supply_vddio_pex_ctl;
306 regulator_t supply_avdd_pll_erefe;
308 vm_offset_t msi_page; /* VA of MSI page */
309 bus_addr_t cfg_base_addr; /* base address of config */
310 bus_size_t cfg_cur_offs; /* currently mapped window */
311 bus_space_handle_t cfg_handle; /* handle of config window */
312 bus_space_tag_t bus_tag; /* tag of config window */
315 struct tegra_pcib_port *ports[TEGRA_PCIB_MAX_PORTS];
316 struct tegra_pcib_irqsrc *isrcs;
320 tegra_pcib_maxslots(device_t dev)
326 tegra_pcib_route_interrupt(device_t bus, device_t dev, int pin)
328 struct tegra_pcib_softc *sc;
331 sc = device_get_softc(bus);
332 irq = intr_map_clone_irq(rman_get_start(sc->irq_res));
333 device_printf(bus, "route pin %d for device %d.%d to %u\n",
334 pin, pci_get_slot(dev), pci_get_function(dev),
341 tegra_pcbib_map_cfg(struct tegra_pcib_softc *sc, u_int bus, u_int slot,
342 u_int func, u_int reg)
347 offs = sc->cfg_base_addr;
348 offs |= PCI_CFG_BUS(bus) | PCI_CFG_DEV(slot) | PCI_CFG_FUN(func) |
349 PCI_CFG_EXT_REG(reg);
350 if ((sc->cfg_handle != 0) && (sc->cfg_cur_offs == offs))
352 if (sc->cfg_handle != 0)
353 bus_space_unmap(sc->bus_tag, sc->cfg_handle, 0x800);
355 rv = bus_space_map(sc->bus_tag, offs, 0x800, 0, &sc->cfg_handle);
357 device_printf(sc->dev, "Cannot map config space\n");
359 sc->cfg_cur_offs = offs;
364 tegra_pcib_read_config(device_t dev, u_int bus, u_int slot, u_int func,
365 u_int reg, int bytes)
367 struct tegra_pcib_softc *sc;
368 bus_space_handle_t hndl;
373 sc = device_get_softc(dev);
377 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
378 if ((sc->ports[i] != NULL) &&
379 (sc->ports[i]->port_idx == slot)) {
380 hndl = sc->ports[i]->cfg_handle;
385 if (i >= TEGRA_PCIB_MAX_PORTS)
388 rv = tegra_pcbib_map_cfg(sc, bus, slot, func, reg);
391 hndl = sc->cfg_handle;
392 off = PCI_CFG_BASE_REG(reg);
395 val = bus_space_read_4(sc->bus_tag, hndl, off & ~3);
405 val >>= ((off & 3) << 3);
413 tegra_pcib_write_config(device_t dev, u_int bus, u_int slot, u_int func,
414 u_int reg, uint32_t val, int bytes)
416 struct tegra_pcib_softc *sc;
417 bus_space_handle_t hndl;
422 sc = device_get_softc(dev);
426 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
427 if ((sc->ports[i] != NULL) &&
428 (sc->ports[i]->port_idx == slot)) {
429 hndl = sc->ports[i]->cfg_handle;
434 if (i >= TEGRA_PCIB_MAX_PORTS)
437 rv = tegra_pcbib_map_cfg(sc, bus, slot, func, reg);
440 hndl = sc->cfg_handle;
441 off = PCI_CFG_BASE_REG(reg);
446 bus_space_write_4(sc->bus_tag, hndl, off, val);
449 val2 = bus_space_read_4(sc->bus_tag, hndl, off & ~3);
450 val2 &= ~(0xffff << ((off & 3) << 3));
451 val2 |= ((val & 0xffff) << ((off & 3) << 3));
452 bus_space_write_4(sc->bus_tag, hndl, off & ~3, val2);
455 val2 = bus_space_read_4(sc->bus_tag, hndl, off & ~3);
456 val2 &= ~(0xff << ((off & 3) << 3));
457 val2 |= ((val & 0xff) << ((off & 3) << 3));
458 bus_space_write_4(sc->bus_tag, hndl, off & ~3, val2);
463 static int tegra_pci_intr(void *arg)
465 struct tegra_pcib_softc *sc = arg;
466 uint32_t code, signature;
468 code = bus_read_4(sc->afi_mem_res, AFI_INTR_CODE) & AFI_INTR_CODE_MASK;
469 signature = bus_read_4(sc->afi_mem_res, AFI_INTR_SIGNATURE);
470 bus_write_4(sc->afi_mem_res, AFI_INTR_CODE, 0);
471 if (code == AFI_INTR_CODE_INT_CODE_SM_MSG)
472 return(FILTER_STRAY);
474 printf("tegra_pci_intr: code %x sig %x\n", code, signature);
475 return (FILTER_HANDLED);
478 /* -----------------------------------------------------------------------
483 tegra_pcib_alloc_msi(device_t pci, device_t child, int count, int maxcount,
486 phandle_t msi_parent;
488 /* XXXX ofw_bus_msimap() don't works for Tegra DT.
489 ofw_bus_msimap(ofw_bus_get_node(pci), pci_get_rid(child), &msi_parent,
492 msi_parent = OF_xref_from_node(ofw_bus_get_node(pci));
493 return (intr_alloc_msi(pci, child, msi_parent, count, maxcount,
498 tegra_pcib_release_msi(device_t pci, device_t child, int count, int *irqs)
500 phandle_t msi_parent;
502 /* XXXX ofw_bus_msimap() don't works for Tegra DT.
503 ofw_bus_msimap(ofw_bus_get_node(pci), pci_get_rid(child), &msi_parent,
506 msi_parent = OF_xref_from_node(ofw_bus_get_node(pci));
507 return (intr_release_msi(pci, child, msi_parent, count, irqs));
511 tegra_pcib_map_msi(device_t pci, device_t child, int irq, uint64_t *addr,
514 phandle_t msi_parent;
516 /* XXXX ofw_bus_msimap() don't works for Tegra DT.
517 ofw_bus_msimap(ofw_bus_get_node(pci), pci_get_rid(child), &msi_parent,
520 msi_parent = OF_xref_from_node(ofw_bus_get_node(pci));
521 return (intr_map_msi(pci, child, msi_parent, irq, addr, data));
524 #ifdef TEGRA_PCIB_MSI_ENABLE
526 /* --------------------------------------------------------------------------
533 tegra_pcib_isrc_mask(struct tegra_pcib_softc *sc,
534 struct tegra_pcib_irqsrc *tgi, uint32_t val)
539 offs = tgi->irq / AFI_MSI_INTR_IN_REG;
540 bit = 1 << (tgi->irq % AFI_MSI_INTR_IN_REG);
543 AFI_WR4(sc, AFI_MSI_VEC(offs), bit);
544 reg = AFI_RD4(sc, AFI_MSI_EN_VEC(offs));
549 AFI_WR4(sc, AFI_MSI_EN_VEC(offs), reg);
553 tegra_pcib_msi_intr(void *arg)
555 u_int irq, i, bit, reg;
556 struct tegra_pcib_softc *sc;
557 struct trapframe *tf;
558 struct tegra_pcib_irqsrc *tgi;
560 sc = (struct tegra_pcib_softc *)arg;
561 tf = curthread->td_intr_frame;
563 for (i = 0; i < AFI_MSI_REGS; i++) {
564 reg = AFI_RD4(sc, AFI_MSI_VEC(i));
565 /* Handle one vector. */
569 AFI_WR4(sc, AFI_MSI_VEC(i), 1 << bit);
570 irq = i * AFI_MSI_INTR_IN_REG + bit;
571 tgi = &sc->isrcs[irq];
572 if (intr_isrc_dispatch(&tgi->isrc, tf) != 0) {
574 tegra_pcib_isrc_mask(sc, tgi, 0);
575 device_printf(sc->dev,
576 "Stray irq %u disabled\n", irq);
578 reg = AFI_RD4(sc, AFI_MSI_VEC(i));
581 return (FILTER_HANDLED);
585 tegra_pcib_msi_attach(struct tegra_pcib_softc *sc)
591 sc->isrcs = malloc(sizeof(*sc->isrcs) * TEGRA_PCIB_MAX_MSI, M_DEVBUF,
594 name = device_get_nameunit(sc->dev);
595 for (irq = 0; irq < TEGRA_PCIB_MAX_MSI; irq++) {
596 sc->isrcs[irq].irq = irq;
597 error = intr_isrc_register(&sc->isrcs[irq].isrc,
598 sc->dev, 0, "%s,%u", name, irq);
600 return (error); /* XXX deregister ISRCs */
602 if (intr_msi_register(sc->dev,
603 OF_xref_from_node(ofw_bus_get_node(sc->dev))) != 0)
610 tegra_pcib_msi_detach(struct tegra_pcib_softc *sc)
614 * There has not been established any procedure yet
615 * how to detach PIC from living system correctly.
617 device_printf(sc->dev, "%s: not implemented yet\n", __func__);
622 tegra_pcib_msi_disable_intr(device_t dev, struct intr_irqsrc *isrc)
624 struct tegra_pcib_softc *sc;
625 struct tegra_pcib_irqsrc *tgi;
627 sc = device_get_softc(dev);
628 tgi = (struct tegra_pcib_irqsrc *)isrc;
629 tegra_pcib_isrc_mask(sc, tgi, 0);
633 tegra_pcib_msi_enable_intr(device_t dev, struct intr_irqsrc *isrc)
635 struct tegra_pcib_softc *sc;
636 struct tegra_pcib_irqsrc *tgi;
638 sc = device_get_softc(dev);
639 tgi = (struct tegra_pcib_irqsrc *)isrc;
640 tegra_pcib_isrc_mask(sc, tgi, 1);
643 /* MSI interrupts are edge trigered -> do nothing */
645 tegra_pcib_msi_post_filter(device_t dev, struct intr_irqsrc *isrc)
650 tegra_pcib_msi_post_ithread(device_t dev, struct intr_irqsrc *isrc)
655 tegra_pcib_msi_pre_ithread(device_t dev, struct intr_irqsrc *isrc)
660 tegra_pcib_msi_setup_intr(device_t dev, struct intr_irqsrc *isrc,
661 struct resource *res, struct intr_map_data *data)
663 struct tegra_pcib_softc *sc;
664 struct tegra_pcib_irqsrc *tgi;
666 sc = device_get_softc(dev);
667 tgi = (struct tegra_pcib_irqsrc *)isrc;
669 if (data == NULL || data->type != INTR_MAP_DATA_MSI)
672 if (isrc->isrc_handlers == 0)
673 tegra_pcib_msi_enable_intr(dev, isrc);
679 tegra_pcib_msi_teardown_intr(device_t dev, struct intr_irqsrc *isrc,
680 struct resource *res, struct intr_map_data *data)
682 struct tegra_pcib_softc *sc;
683 struct tegra_pcib_irqsrc *tgi;
685 sc = device_get_softc(dev);
686 tgi = (struct tegra_pcib_irqsrc *)isrc;
688 if (isrc->isrc_handlers == 0)
689 tegra_pcib_isrc_mask(sc, tgi, 0);
694 tegra_pcib_msi_alloc_msi(device_t dev, device_t child, int count, int maxcount,
695 device_t *pic, struct intr_irqsrc **srcs)
697 struct tegra_pcib_softc *sc;
701 KASSERT(powerof2(count), ("%s: bad count", __func__));
702 KASSERT(powerof2(maxcount), ("%s: bad maxcount", __func__));
704 sc = device_get_softc(dev);
708 for (irq = 0; (irq + count - 1) < TEGRA_PCIB_MAX_MSI; irq++) {
709 /* Start on an aligned interrupt */
710 if ((irq & (maxcount - 1)) != 0)
713 /* Assume we found a valid range until shown otherwise */
716 /* Check this range is valid */
717 for (end_irq = irq; end_irq < irq + count; end_irq++) {
718 /* This is already used */
719 if ((sc->isrcs[end_irq].flags & TEGRA_FLAG_MSI_USED) ==
720 TEGRA_FLAG_MSI_USED) {
730 /* Not enough interrupts were found */
731 if (!found || irq == (TEGRA_PCIB_MAX_MSI - 1)) {
732 mtx_unlock(&sc->mtx);
736 for (i = 0; i < count; i++) {
737 /* Mark the interrupt as used */
738 sc->isrcs[irq + i].flags |= TEGRA_FLAG_MSI_USED;
740 mtx_unlock(&sc->mtx);
742 for (i = 0; i < count; i++)
743 srcs[i] = (struct intr_irqsrc *)&sc->isrcs[irq + i];
744 *pic = device_get_parent(dev);
749 tegra_pcib_msi_release_msi(device_t dev, device_t child, int count,
750 struct intr_irqsrc **isrc)
752 struct tegra_pcib_softc *sc;
753 struct tegra_pcib_irqsrc *ti;
756 sc = device_get_softc(dev);
758 for (i = 0; i < count; i++) {
759 ti = (struct tegra_pcib_irqsrc *)isrc[i];
761 KASSERT((ti->flags & TEGRA_FLAG_MSI_USED) == TEGRA_FLAG_MSI_USED,
762 ("%s: Trying to release an unused MSI-X interrupt",
765 ti->flags &= ~TEGRA_FLAG_MSI_USED;
767 mtx_unlock(&sc->mtx);
772 tegra_pcib_msi_map_msi(device_t dev, device_t child, struct intr_irqsrc *isrc,
773 uint64_t *addr, uint32_t *data)
775 struct tegra_pcib_softc *sc = device_get_softc(dev);
776 struct tegra_pcib_irqsrc *ti = (struct tegra_pcib_irqsrc *)isrc;
778 *addr = vtophys(sc->msi_page);
784 /* ------------------------------------------------------------------- */
786 tegra_pcib_pex_ctrl(struct tegra_pcib_softc *sc, int port)
788 if (port >= TEGRA_PCIB_MAX_PORTS)
789 panic("invalid port number: %d\n", port);
792 return (AFI_PEX0_CTRL);
794 return (AFI_PEX1_CTRL);
796 return (AFI_PEX2_CTRL);
798 panic("invalid port number: %d\n", port);
802 tegra_pcib_enable_fdt_resources(struct tegra_pcib_softc *sc)
806 rv = hwreset_assert(sc->hwreset_pcie_x);
808 device_printf(sc->dev, "Cannot assert 'pcie_x' reset\n");
811 rv = hwreset_assert(sc->hwreset_afi);
813 device_printf(sc->dev, "Cannot assert 'afi' reset\n");
816 rv = hwreset_assert(sc->hwreset_pex);
818 device_printf(sc->dev, "Cannot assert 'pex' reset\n");
822 tegra_powergate_power_off(TEGRA_POWERGATE_PCX);
824 /* Power supplies. */
825 rv = regulator_enable(sc->supply_avddio_pex);
827 device_printf(sc->dev,
828 "Cannot enable 'avddio_pex' regulator\n");
831 rv = regulator_enable(sc->supply_dvddio_pex);
833 device_printf(sc->dev,
834 "Cannot enable 'dvddio_pex' regulator\n");
837 rv = regulator_enable(sc->supply_avdd_pex_pll);
839 device_printf(sc->dev,
840 "Cannot enable 'avdd-pex-pll' regulator\n");
843 rv = regulator_enable(sc->supply_hvdd_pex);
845 device_printf(sc->dev,
846 "Cannot enable 'hvdd-pex-supply' regulator\n");
849 rv = regulator_enable(sc->supply_hvdd_pex_pll_e);
851 device_printf(sc->dev,
852 "Cannot enable 'hvdd-pex-pll-e-supply' regulator\n");
855 rv = regulator_enable(sc->supply_vddio_pex_ctl);
857 device_printf(sc->dev,
858 "Cannot enable 'vddio-pex-ctl' regulator\n");
861 rv = regulator_enable(sc->supply_avdd_pll_erefe);
863 device_printf(sc->dev,
864 "Cannot enable 'avdd-pll-erefe-supply' regulator\n");
868 rv = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_PCX,
869 sc->clk_pex, sc->hwreset_pex);
871 device_printf(sc->dev, "Cannot enable 'PCX' powergate\n");
875 rv = hwreset_deassert(sc->hwreset_afi);
877 device_printf(sc->dev, "Cannot unreset 'afi' reset\n");
881 rv = clk_enable(sc->clk_afi);
883 device_printf(sc->dev, "Cannot enable 'afi' clock\n");
886 rv = clk_enable(sc->clk_cml);
888 device_printf(sc->dev, "Cannot enable 'cml' clock\n");
891 rv = clk_enable(sc->clk_pll_e);
893 device_printf(sc->dev, "Cannot enable 'pll_e' clock\n");
899 static struct tegra_pcib_port *
900 tegra_pcib_parse_port(struct tegra_pcib_softc *sc, phandle_t node)
902 struct tegra_pcib_port *port;
907 port = malloc(sizeof(struct tegra_pcib_port), M_DEVBUF, M_WAITOK);
909 rv = OF_getprop(node, "status", tmpstr, sizeof(tmpstr));
910 if (rv <= 0 || strcmp(tmpstr, "okay") == 0 ||
911 strcmp(tmpstr, "ok") == 0)
916 rv = OF_getencprop(node, "assigned-addresses", tmp, sizeof(tmp));
917 if (rv != sizeof(tmp)) {
918 device_printf(sc->dev, "Cannot parse assigned-address: %d\n",
922 port->rp_base_addr = tmp[2];
923 port->rp_size = tmp[4];
924 port->port_idx = OFW_PCI_PHYS_HI_DEVICE(tmp[0]) - 1;
925 if (port->port_idx >= TEGRA_PCIB_MAX_PORTS) {
926 device_printf(sc->dev, "Invalid port index: %d\n",
931 * Implement proper function for parsing pci "reg" property:
932 * - it have PCI bus format
933 * - its relative to matching "assigned-addresses"
935 rv = OF_getencprop(node, "reg", tmp, sizeof(tmp));
936 if (rv != sizeof(tmp)) {
937 device_printf(sc->dev, "Cannot parse reg: %d\n", rv);
940 port->rp_base_addr += tmp[2];
942 rv = OF_getencprop(node, "nvidia,num-lanes", &port->num_lanes,
943 sizeof(port->num_lanes));
944 if (rv != sizeof(port->num_lanes)) {
945 device_printf(sc->dev, "Cannot parse nvidia,num-lanes: %d\n",
949 if (port->num_lanes > 4) {
950 device_printf(sc->dev, "Invalid nvidia,num-lanes: %d\n",
955 port->afi_pex_ctrl = tegra_pcib_pex_ctrl(sc, port->port_idx);
956 sc->lanes_cfg |= port->num_lanes << (4 * port->port_idx);
959 rv = phy_get_by_ofw_name(sc->dev, node, "pcie-0", &port->phy);
961 device_printf(sc->dev,
962 "Cannot get 'pcie-0' phy for port %d\n",
969 free(port, M_DEVBUF);
974 tegra_pcib_parse_fdt_resources(struct tegra_pcib_softc *sc, phandle_t node)
977 struct tegra_pcib_port *port;
980 /* Power supplies. */
981 rv = regulator_get_by_ofw_property(sc->dev, 0, "avddio-pex-supply",
982 &sc->supply_avddio_pex);
984 device_printf(sc->dev,
985 "Cannot get 'avddio-pex' regulator\n");
988 rv = regulator_get_by_ofw_property(sc->dev, 0, "dvddio-pex-supply",
989 &sc->supply_dvddio_pex);
991 device_printf(sc->dev,
992 "Cannot get 'dvddio-pex' regulator\n");
995 rv = regulator_get_by_ofw_property(sc->dev, 0, "avdd-pex-pll-supply",
996 &sc->supply_avdd_pex_pll);
998 device_printf(sc->dev,
999 "Cannot get 'avdd-pex-pll' regulator\n");
1002 rv = regulator_get_by_ofw_property(sc->dev, 0, "hvdd-pex-supply",
1003 &sc->supply_hvdd_pex);
1005 device_printf(sc->dev,
1006 "Cannot get 'hvdd-pex' regulator\n");
1009 rv = regulator_get_by_ofw_property(sc->dev, 0, "hvdd-pex-pll-e-supply",
1010 &sc->supply_hvdd_pex_pll_e);
1012 device_printf(sc->dev,
1013 "Cannot get 'hvdd-pex-pll-e' regulator\n");
1016 rv = regulator_get_by_ofw_property(sc->dev, 0, "vddio-pex-ctl-supply",
1017 &sc->supply_vddio_pex_ctl);
1019 device_printf(sc->dev,
1020 "Cannot get 'vddio-pex-ctl' regulator\n");
1023 rv = regulator_get_by_ofw_property(sc->dev, 0, "avdd-pll-erefe-supply",
1024 &sc->supply_avdd_pll_erefe);
1026 device_printf(sc->dev,
1027 "Cannot get 'avdd-pll-erefe' regulator\n");
1032 rv = hwreset_get_by_ofw_name(sc->dev, 0, "pex", &sc->hwreset_pex);
1034 device_printf(sc->dev, "Cannot get 'pex' reset\n");
1037 rv = hwreset_get_by_ofw_name(sc->dev, 0, "afi", &sc->hwreset_afi);
1039 device_printf(sc->dev, "Cannot get 'afi' reset\n");
1042 rv = hwreset_get_by_ofw_name(sc->dev, 0, "pcie_x", &sc->hwreset_pcie_x);
1044 device_printf(sc->dev, "Cannot get 'pcie_x' reset\n");
1049 rv = clk_get_by_ofw_name(sc->dev, 0, "pex", &sc->clk_pex);
1051 device_printf(sc->dev, "Cannot get 'pex' clock\n");
1054 rv = clk_get_by_ofw_name(sc->dev, 0, "afi", &sc->clk_afi);
1056 device_printf(sc->dev, "Cannot get 'afi' clock\n");
1059 rv = clk_get_by_ofw_name(sc->dev, 0, "pll_e", &sc->clk_pll_e);
1061 device_printf(sc->dev, "Cannot get 'pll_e' clock\n");
1064 rv = clk_get_by_ofw_name(sc->dev, 0, "cml", &sc->clk_cml);
1066 device_printf(sc->dev, "Cannot get 'cml' clock\n");
1072 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
1073 port = tegra_pcib_parse_port(sc, child);
1075 device_printf(sc->dev, "Cannot parse PCIe port node\n");
1078 sc->ports[sc->num_ports++] = port;
1085 tegra_pcib_decode_ranges(struct tegra_pcib_softc *sc,
1086 struct ofw_pci_range *ranges, int nranges)
1090 for (i = 2; i < nranges; i++) {
1091 if ((ranges[i].pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) ==
1092 OFW_PCI_PHYS_HI_SPACE_IO) {
1093 if (sc->io_range.size != 0) {
1094 device_printf(sc->dev,
1095 "Duplicated IO range found in DT\n");
1098 sc->io_range = ranges[i];
1100 if (((ranges[i].pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) ==
1101 OFW_PCI_PHYS_HI_SPACE_MEM32)) {
1102 if (ranges[i].pci_hi & OFW_PCI_PHYS_HI_PREFETCHABLE) {
1103 if (sc->pref_mem_range.size != 0) {
1104 device_printf(sc->dev,
1105 "Duplicated memory range found "
1109 sc->pref_mem_range = ranges[i];
1111 if (sc->mem_range.size != 0) {
1112 device_printf(sc->dev,
1113 "Duplicated memory range found "
1117 sc->mem_range = ranges[i];
1121 if ((sc->io_range.size == 0) || (sc->mem_range.size == 0)
1122 || (sc->pref_mem_range.size == 0)) {
1123 device_printf(sc->dev,
1124 " Not all required ranges are found in DT\n");
1134 tegra_pcib_wait_for_link(struct tegra_pcib_softc *sc,
1135 struct tegra_pcib_port *port)
1140 /* Setup link detection. */
1141 reg = tegra_pcib_read_config(sc->dev, 0, port->port_idx, 0,
1143 reg &= ~RP_PRIV_MISC_PRSNT_MAP_EP_ABSNT;
1144 reg |= RP_PRIV_MISC_PRSNT_MAP_EP_PRSNT;
1145 tegra_pcib_write_config(sc->dev, 0, port->port_idx, 0,
1146 RP_PRIV_MISC, reg, 4);
1148 for (i = TEGRA_PCIE_LINKUP_TIMEOUT; i > 0; i--) {
1149 reg = tegra_pcib_read_config(sc->dev, 0, port->port_idx, 0,
1151 if (reg & RP_VEND_XP_DL_UP)
1158 for (i = TEGRA_PCIE_LINKUP_TIMEOUT; i > 0; i--) {
1159 reg = tegra_pcib_read_config(sc->dev, 0, port->port_idx, 0,
1160 RP_LINK_CONTROL_STATUS, 4);
1161 if (reg & RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE)
1172 tegra_pcib_port_enable(struct tegra_pcib_softc *sc, int port_num)
1174 struct tegra_pcib_port *port;
1178 port = sc->ports[port_num];
1180 /* Put port to reset. */
1181 reg = AFI_RD4(sc, port->afi_pex_ctrl);
1182 reg &= ~AFI_PEX_CTRL_RST_L;
1183 AFI_WR4(sc, port->afi_pex_ctrl, reg);
1184 AFI_RD4(sc, port->afi_pex_ctrl);
1187 /* Enable clocks. */
1188 reg |= AFI_PEX_CTRL_REFCLK_EN;
1189 reg |= AFI_PEX_CTRL_CLKREQ_EN;
1190 reg |= AFI_PEX_CTRL_OVERRIDE_EN;
1191 AFI_WR4(sc, port->afi_pex_ctrl, reg);
1192 AFI_RD4(sc, port->afi_pex_ctrl);
1195 /* Release reset. */
1196 reg |= AFI_PEX_CTRL_RST_L;
1197 AFI_WR4(sc, port->afi_pex_ctrl, reg);
1199 rv = tegra_pcib_wait_for_link(sc, port);
1201 device_printf(sc->dev, " port %d (%d lane%s): Link is %s\n",
1202 port->port_idx, port->num_lanes,
1203 port->num_lanes > 1 ? "s": "",
1204 rv == 0 ? "up": "down");
1208 tegra_pcib_port_disable(struct tegra_pcib_softc *sc, uint32_t port_num)
1210 struct tegra_pcib_port *port;
1213 port = sc->ports[port_num];
1215 /* Put port to reset. */
1216 reg = AFI_RD4(sc, port->afi_pex_ctrl);
1217 reg &= ~AFI_PEX_CTRL_RST_L;
1218 AFI_WR4(sc, port->afi_pex_ctrl, reg);
1219 AFI_RD4(sc, port->afi_pex_ctrl);
1222 /* Disable clocks. */
1223 reg &= ~AFI_PEX_CTRL_CLKREQ_EN;
1224 reg &= ~AFI_PEX_CTRL_REFCLK_EN;
1225 AFI_WR4(sc, port->afi_pex_ctrl, reg);
1228 device_printf(sc->dev, " port %d (%d lane%s): Disabled\n",
1229 port->port_idx, port->num_lanes,
1230 port->num_lanes > 1 ? "s": "");
1234 tegra_pcib_set_bar(struct tegra_pcib_softc *sc, int bar, uint32_t axi,
1235 uint64_t fpci, uint32_t size, int is_memory)
1241 axi_reg = axi & ~0xFFF;
1242 size_reg = size >> 12;
1243 fpci_reg = (uint32_t)(fpci >> 8) & ~0xF;
1244 fpci_reg |= is_memory ? 0x1 : 0x0;
1245 AFI_WR4(sc, bars[bar].axi_start, axi_reg);
1246 AFI_WR4(sc, bars[bar].size, size_reg);
1247 AFI_WR4(sc, bars[bar].fpci_start, fpci_reg);
1251 tegra_pcib_enable(struct tegra_pcib_softc *sc)
1257 rv = tegra_pcib_enable_fdt_resources(sc);
1259 device_printf(sc->dev, "Cannot enable FDT resources\n");
1262 /* Enable PLLE control. */
1263 reg = AFI_RD4(sc, AFI_PLLE_CONTROL);
1264 reg &= ~AFI_PLLE_CONTROL_BYPASS_PADS2PLLE_CONTROL;
1265 reg |= AFI_PLLE_CONTROL_PADS2PLLE_CONTROL_EN;
1266 AFI_WR4(sc, AFI_PLLE_CONTROL, reg);
1269 AFI_WR4(sc, AFI_PEXBIAS_CTRL, 0);
1271 /* Configure mode and ports. */
1272 reg = AFI_RD4(sc, AFI_PCIE_CONFIG);
1273 reg &= ~AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_MASK;
1274 if (sc->lanes_cfg == 0x14) {
1276 device_printf(sc->dev,
1277 "Using x1,x4 configuration\n");
1278 reg |= AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_XBAR4_1;
1279 } else if (sc->lanes_cfg == 0x12) {
1281 device_printf(sc->dev,
1282 "Using x1,x2 configuration\n");
1283 reg |= AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_XBAR2_1;
1285 device_printf(sc->dev,
1286 "Unsupported lanes configuration: 0x%X\n", sc->lanes_cfg);
1288 reg |= AFI_PCIE_CONFIG_PCIE_DISABLE_ALL;
1289 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
1290 if ((sc->ports[i] != NULL))
1292 ~AFI_PCIE_CONFIG_PCIE_DISABLE(sc->ports[i]->port_idx);
1294 AFI_WR4(sc, AFI_PCIE_CONFIG, reg);
1296 /* Enable Gen2 support. */
1297 reg = AFI_RD4(sc, AFI_FUSE);
1298 reg &= ~AFI_FUSE_PCIE_T0_GEN2_DIS;
1299 AFI_WR4(sc, AFI_FUSE, reg);
1301 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
1302 if (sc->ports[i] != NULL) {
1303 rv = phy_enable(sc->ports[i]->phy);
1305 device_printf(sc->dev,
1306 "Cannot enable phy for port %d\n",
1307 sc->ports[i]->port_idx);
1313 rv = hwreset_deassert(sc->hwreset_pcie_x);
1315 device_printf(sc->dev, "Cannot unreset 'pci_x' reset\n");
1319 /* Enable config space. */
1320 reg = AFI_RD4(sc, AFI_CONFIGURATION);
1321 reg |= AFI_CONFIGURATION_EN_FPCI;
1322 AFI_WR4(sc, AFI_CONFIGURATION, reg);
1324 /* Enable AFI errors. */
1326 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_INI_SLVERR);
1327 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_INI_DECERR);
1328 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_TGT_SLVERR);
1329 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_TGT_DECERR);
1330 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_TGT_WRERR);
1331 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_SM_MSG);
1332 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_DFPCI_DECERR);
1333 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_AXI_DECERR);
1334 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_FPCI_TIMEOUT);
1335 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_PE_PRSNT_SENSE);
1336 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_PE_CLKREQ_SENSE);
1337 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_CLKCLAMP_SENSE);
1338 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_RDY4PD_SENSE);
1339 reg |= AFI_AFI_INTR_ENABLE_CODE(AFI_INTR_CODE_INT_CODE_P2P_ERROR);
1340 AFI_WR4(sc, AFI_AFI_INTR_ENABLE, reg);
1341 AFI_WR4(sc, AFI_SM_INTR_ENABLE, 0xffffffff);
1343 /* Enable INT, disable MSI. */
1344 AFI_WR4(sc, AFI_INTR_MASK, AFI_INTR_MASK_INT_MASK);
1346 /* Mask all FPCI errors. */
1347 AFI_WR4(sc, AFI_FPCI_ERROR_MASKS, 0);
1349 /* Setup AFI translation windows. */
1350 /* BAR 0 - type 1 extended configuration. */
1351 tegra_pcib_set_bar(sc, 0, rman_get_start(sc->cfg_mem_res),
1352 FPCI_MAP_EXT_TYPE1_CONFIG, rman_get_size(sc->cfg_mem_res), 0);
1354 /* BAR 1 - downstream I/O. */
1355 tegra_pcib_set_bar(sc, 1, sc->io_range.host, FPCI_MAP_IO,
1356 sc->io_range.size, 0);
1358 /* BAR 2 - downstream prefetchable memory 1:1. */
1359 tegra_pcib_set_bar(sc, 2, sc->pref_mem_range.host,
1360 sc->pref_mem_range.host, sc->pref_mem_range.size, 1);
1362 /* BAR 3 - downstream not prefetchable memory 1:1 .*/
1363 tegra_pcib_set_bar(sc, 3, sc->mem_range.host,
1364 sc->mem_range.host, sc->mem_range.size, 1);
1366 /* BAR 3-8 clear. */
1367 tegra_pcib_set_bar(sc, 4, 0, 0, 0, 0);
1368 tegra_pcib_set_bar(sc, 5, 0, 0, 0, 0);
1369 tegra_pcib_set_bar(sc, 6, 0, 0, 0, 0);
1370 tegra_pcib_set_bar(sc, 7, 0, 0, 0, 0);
1371 tegra_pcib_set_bar(sc, 8, 0, 0, 0, 0);
1373 /* MSI BAR - clear. */
1374 tegra_pcib_set_bar(sc, 9, 0, 0, 0, 0);
1378 #ifdef TEGRA_PCIB_MSI_ENABLE
1380 tegra_pcib_attach_msi(device_t dev)
1382 struct tegra_pcib_softc *sc;
1386 sc = device_get_softc(dev);
1388 sc->msi_page = kmem_alloc_contig(PAGE_SIZE, M_WAITOK, 0,
1389 BUS_SPACE_MAXADDR, PAGE_SIZE, 0, VM_MEMATTR_DEFAULT);
1392 tegra_pcib_set_bar(sc, 9, vtophys(sc->msi_page), vtophys(sc->msi_page),
1395 /* Disble and clear all interrupts. */
1396 for (i = 0; i < AFI_MSI_REGS; i++) {
1397 AFI_WR4(sc, AFI_MSI_EN_VEC(i), 0);
1398 AFI_WR4(sc, AFI_MSI_VEC(i), 0xFFFFFFFF);
1400 rv = bus_setup_intr(dev, sc->msi_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
1401 tegra_pcib_msi_intr, NULL, sc, &sc->msi_intr_cookie);
1403 device_printf(dev, "cannot setup MSI interrupt handler\n");
1408 if (tegra_pcib_msi_attach(sc) != 0) {
1409 device_printf(dev, "WARNING: unable to attach PIC\n");
1410 tegra_pcib_msi_detach(sc);
1414 /* Unmask MSI interrupt. */
1415 reg = AFI_RD4(sc, AFI_INTR_MASK);
1416 reg |= AFI_INTR_MASK_MSI_MASK;
1417 AFI_WR4(sc, AFI_INTR_MASK, reg);
1425 tegra_pcib_probe(device_t dev)
1427 if (!ofw_bus_status_okay(dev))
1430 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data != 0) {
1431 device_set_desc(dev, "Nvidia Integrated PCI/PCI-E Controller");
1432 return (BUS_PROBE_DEFAULT);
1438 tegra_pcib_attach(device_t dev)
1440 struct tegra_pcib_softc *sc;
1444 struct tegra_pcib_port *port;
1447 sc = device_get_softc(dev);
1449 mtx_init(&sc->mtx, "msi_mtx", NULL, MTX_DEF);
1451 node = ofw_bus_get_node(dev);
1453 rv = tegra_pcib_parse_fdt_resources(sc, node);
1455 device_printf(dev, "Cannot get FDT resources\n");
1459 /* Allocate bus_space resources. */
1461 sc->pads_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1463 if (sc->pads_mem_res == NULL) {
1464 device_printf(dev, "Cannot allocate PADS register\n");
1470 * tag for config space is not filled when RF_ALLOCATED flag is used.
1472 sc->bus_tag = rman_get_bustag(sc->pads_mem_res);
1475 sc->afi_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1477 if (sc->afi_mem_res == NULL) {
1478 device_printf(dev, "Cannot allocate AFI register\n");
1484 sc->cfg_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1486 if (sc->cfg_mem_res == NULL) {
1487 device_printf(dev, "Cannot allocate config space memory\n");
1491 sc->cfg_base_addr = rman_get_start(sc->cfg_mem_res);
1494 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
1495 if (sc->ports[i] == NULL)
1497 port = sc->ports[i];
1498 rv = bus_space_map(sc->bus_tag, port->rp_base_addr,
1499 port->rp_size, 0, &port->cfg_handle);
1501 device_printf(sc->dev, "Cannot allocate memory for "
1512 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1513 RF_ACTIVE | RF_SHAREABLE);
1514 if (sc->irq_res == NULL) {
1515 device_printf(dev, "Cannot allocate IRQ resources\n");
1521 sc->msi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1523 if (sc->irq_res == NULL) {
1524 device_printf(dev, "Cannot allocate MSI IRQ resources\n");
1529 sc->ofw_pci.sc_range_mask = 0x3;
1530 rv = ofw_pci_init(dev);
1534 rv = tegra_pcib_decode_ranges(sc, sc->ofw_pci.sc_range,
1535 sc->ofw_pci.sc_nrange);
1539 if (bus_setup_intr(dev, sc->irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
1540 tegra_pci_intr, NULL, sc, &sc->intr_cookie)) {
1541 device_printf(dev, "cannot setup interrupt handler\n");
1547 * Enable PCIE device.
1549 rv = tegra_pcib_enable(sc);
1552 for (i = 0; i < TEGRA_PCIB_MAX_PORTS; i++) {
1553 if (sc->ports[i] == NULL)
1555 if (sc->ports[i]->enabled)
1556 tegra_pcib_port_enable(sc, i);
1558 tegra_pcib_port_disable(sc, i);
1561 #ifdef TEGRA_PCIB_MSI_ENABLE
1562 rv = tegra_pcib_attach_msi(dev);
1566 device_add_child(dev, "pci", -1);
1568 return (bus_generic_attach(dev));
1575 static device_method_t tegra_pcib_methods[] = {
1576 /* Device interface */
1577 DEVMETHOD(device_probe, tegra_pcib_probe),
1578 DEVMETHOD(device_attach, tegra_pcib_attach),
1581 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
1582 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
1584 /* pcib interface */
1585 DEVMETHOD(pcib_maxslots, tegra_pcib_maxslots),
1586 DEVMETHOD(pcib_read_config, tegra_pcib_read_config),
1587 DEVMETHOD(pcib_write_config, tegra_pcib_write_config),
1588 DEVMETHOD(pcib_route_interrupt, tegra_pcib_route_interrupt),
1589 DEVMETHOD(pcib_alloc_msi, tegra_pcib_alloc_msi),
1590 DEVMETHOD(pcib_release_msi, tegra_pcib_release_msi),
1591 DEVMETHOD(pcib_map_msi, tegra_pcib_map_msi),
1592 DEVMETHOD(pcib_request_feature, pcib_request_feature_allow),
1594 #ifdef TEGRA_PCIB_MSI_ENABLE
1596 DEVMETHOD(msi_alloc_msi, tegra_pcib_msi_alloc_msi),
1597 DEVMETHOD(msi_release_msi, tegra_pcib_msi_release_msi),
1598 DEVMETHOD(msi_map_msi, tegra_pcib_msi_map_msi),
1600 /* Interrupt controller interface */
1601 DEVMETHOD(pic_disable_intr, tegra_pcib_msi_disable_intr),
1602 DEVMETHOD(pic_enable_intr, tegra_pcib_msi_enable_intr),
1603 DEVMETHOD(pic_setup_intr, tegra_pcib_msi_setup_intr),
1604 DEVMETHOD(pic_teardown_intr, tegra_pcib_msi_teardown_intr),
1605 DEVMETHOD(pic_post_filter, tegra_pcib_msi_post_filter),
1606 DEVMETHOD(pic_post_ithread, tegra_pcib_msi_post_ithread),
1607 DEVMETHOD(pic_pre_ithread, tegra_pcib_msi_pre_ithread),
1610 /* OFW bus interface */
1611 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
1612 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
1613 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
1614 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
1615 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
1620 static devclass_t pcib_devclass;
1621 DEFINE_CLASS_1(pcib, tegra_pcib_driver, tegra_pcib_methods,
1622 sizeof(struct tegra_pcib_softc), ofw_pci_driver);
1623 DRIVER_MODULE(tegra_pcib, simplebus, tegra_pcib_driver, pcib_devclass,