1 /*-
2 * Copyright (c) 2012 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Matt Thomas of 3am Software Foundry.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "opt_broadcom.h"
31 #include "locators.h"
32
33 #define IDM_PRIVATE
34
35 #include <sys/cdefs.h>
36
37 __KERNEL_RCSID(1, "$NetBSD: bcm53xx_ccb.c,v 1.9 2022/03/03 06:26:28 riastradh Exp $");
38
39 #include <sys/param.h>
40 #include <sys/bus.h>
41 #include <sys/device.h>
42 #include <sys/intr.h>
43 #include <sys/systm.h>
44
45 #include <arm/mainbus/mainbus.h>
46
47 #include <arm/broadcom/bcm53xx_reg.h>
48 #include <arm/broadcom/bcm53xx_var.h>
49
50 static int bcmccb_mainbus_match(device_t, cfdata_t, void *);
51 static void bcmccb_mainbus_attach(device_t, device_t, void *);
52
53 struct bcmccb_softc {
54 device_t sc_dev;
55 bus_space_tag_t sc_bst;
56 bus_space_handle_t sc_bsh;
57 };
58
59 static struct bcmccb_softc bcmccb_sc;
60
61 CFATTACH_DECL_NEW(bcmccb, 0,
62 bcmccb_mainbus_match, bcmccb_mainbus_attach, NULL, NULL);
63
64 static int
bcmccb_mainbus_match(device_t parent,cfdata_t cf,void * aux)65 bcmccb_mainbus_match(device_t parent, cfdata_t cf, void *aux)
66 {
67 if (bcmccb_sc.sc_dev != NULL)
68 return 0;
69
70 return 1;
71 }
72
73 static int
bcmccb_print(void * aux,const char * pnp)74 bcmccb_print(void *aux, const char *pnp)
75 {
76 const struct bcmccb_attach_args * const ccbaa = aux;
77
78 if (ccbaa->ccbaa_loc.loc_port != BCMCCBCF_PORT_DEFAULT)
79 aprint_normal(" port %d", ccbaa->ccbaa_loc.loc_port);
80
81 return QUIET;
82 }
83
84 __unused static inline uint32_t
bcmccb_read_4(struct bcmccb_softc * sc,bus_size_t o)85 bcmccb_read_4(struct bcmccb_softc *sc, bus_size_t o)
86 {
87 return bus_space_read_4(sc->sc_bst, sc->sc_bsh, o);
88 }
89
90 __unused static inline void
bcmccb_write_4(struct bcmccb_softc * sc,bus_size_t o,uint32_t v)91 bcmccb_write_4(struct bcmccb_softc *sc, bus_size_t o, uint32_t v)
92 {
93 return bus_space_write_4(sc->sc_bst, sc->sc_bsh, o, v);
94 }
95
96 static const struct bcm_locators bcmccb_locators[] = {
97 { "bcmpwn", PWM_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT },
98 { "bcmmdio", MII_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT },
99 { "bcmrng", RNG_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_RNG } },
100 { "bcmtmr", TIMER0_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 2, { IRQ_TIMER0_1, IRQ_TIMER0_2 } },
101 { "bcmtmr", TIMER1_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 2, { IRQ_TIMER1_1, IRQ_TIMER1_2 } },
102 #ifdef SRAB_BASE
103 { "bcmsw", SRAB_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, },
104 #endif
105 { "bcmcom", UART2_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_UART2 } },
106 #ifdef BCM5301X
107 { "bcmi2c", SMBUS1_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_SMBUS1 } },
108 #endif
109 #ifdef BCM536XX
110 { "bcmi2c", SMBUS1_BASE, 0x1000, 1, 1, { IRQ_SMBUS1 } },
111 { "bcmi2c", SMBUS2_BASE, 0x1000, 2, 1, { IRQ_SMBUS2 } },
112 #endif
113 { "bcmcru", CRU_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT },
114 { "bcmdmu", DMU_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT },
115 { "bcmddr", DDR_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_DDR_CONTROLLER } },
116 { "bcmeth", GMAC0_BASE, 0x1000, 0, 1, { IRQ_GMAC0 }, },
117 { "bcmeth", GMAC1_BASE, 0x1000, 1, 1, { IRQ_GMAC1 }, },
118 #ifdef GMAC2_BASE
119 { "bcmeth", GMAC2_BASE, 0x1000, 2, 1, { IRQ_GMAC2 }, },
120 #endif
121 // { "bcmeth", GMAC3_BASE, 0x1000, 3, 1, { IRQ_GMAC3 }, },
122 { "bcmpax", PCIE0_BASE, 0x1000, 0, 6, { IRQ_PCIE_INT0 }, },
123 { "bcmpax", PCIE1_BASE, 0x1000, 1, 6, { IRQ_PCIE_INT1 }, },
124 #ifdef PCIE2_BASE
125 { "bcmpax", PCIE2_BASE, 0x1000, 2, 6, { IRQ_PCIE_INT2 }, },
126 #endif
127 #ifdef SDIO_BASE
128 { "sdhc", SDIO_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_SDIO } },
129 #endif
130 { "bcmnand", NAND_BASE, 0x1000, BCMCCBCF_PORT_DEFAULT, 8,
131 { IRQ_NAND_RD_MISS, IRQ_NAND_BLK_ERASE_COMP,
132 IRQ_NAND_COPY_BACK_COMP, IRQ_NAND_PGM_PAGE_COMP,
133 IRQ_NAND_RO_CTLR_READY, IRQ_NAND_RB_B,
134 IRQ_NAND_ECC_MIPS_UNCORR, IRQ_NAND_ECC_MIPS_CORR } },
135 { "bcmusb", EHCI_BASE, 0x2000, BCMCCBCF_PORT_DEFAULT, 1, { IRQ_USB2 } },
136 };
137
138 static int
bcmccb_find(device_t parent,cfdata_t cf,const int * ldesc,void * aux)139 bcmccb_find(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
140 {
141 struct bcmccb_attach_args * const ccbaa = aux;
142
143 if (strcmp(cf->cf_name, ccbaa->ccbaa_loc.loc_name) != 0)
144 return 0;
145
146 const bool is_bcmeth_p = strcmp(cf->cf_name, "bcmeth") == 0;
147 const bool is_bcmpax_p = !is_bcmeth_p && strcmp(cf->cf_name, "bcmpax") == 0;
148 if (cf->cf_loc[BCMCCBCF_PORT] != BCMCCBCF_PORT_DEFAULT
149 && (cf->cf_loc[BCMCCBCF_PORT] != ccbaa->ccbaa_loc.loc_port
150 || (!is_bcmeth_p && !is_bcmpax_p)))
151 return 0;
152
153 ccbaa->ccbaa_loc.loc_mdio = cf->cf_loc[BCMCCBCF_MDIO];
154 ccbaa->ccbaa_loc.loc_phy = cf->cf_loc[BCMCCBCF_PHY];
155 if (!is_bcmeth_p) {
156 const bool is_mdio_default_p = ccbaa->ccbaa_loc.loc_mdio == BCMCCBCF_MDIO_DEFAULT;
157 const bool is_phy_default_p = ccbaa->ccbaa_loc.loc_phy == BCMCCBCF_PHY_DEFAULT;
158 if (!is_mdio_default_p || !is_phy_default_p)
159 return 0;
160 }
161
162 return config_match(parent, cf, ccbaa);
163 }
164
165 static void
bcmccb_mainbus_attach(device_t parent,device_t self,void * aux)166 bcmccb_mainbus_attach(device_t parent, device_t self, void *aux)
167 {
168 struct bcmccb_softc * const sc = &bcmccb_sc;
169
170 sc->sc_dev = self;
171 device_set_private(self, sc);
172
173 sc->sc_bst = bcm53xx_ioreg_bst;
174
175 bus_space_subregion (sc->sc_bst, bcm53xx_ioreg_bsh,
176 CCB_BASE, CCB_SIZE, &sc->sc_bsh);
177
178 aprint_naive("\n");
179 aprint_normal("\n");
180
181 for (size_t i = 0; i < __arraycount(bcmccb_locators); i++) {
182 const struct bcm_locators *loc = &bcmccb_locators[i];
183
184 #ifdef BCM5301X
185 if (strcmp(loc->loc_name, "bcmsw") == 0) {
186 bcm53xx_srab_init(); // need this for ethernet.
187 }
188 #endif
189
190 struct bcmccb_attach_args ccbaa = {
191 .ccbaa_ccb_bst = sc->sc_bst,
192 .ccbaa_ccb_bsh = sc->sc_bsh,
193 .ccbaa_dmat = &bcm53xx_dma_tag,
194 .ccbaa_loc = *loc,
195 };
196
197 /*
198 * If the device might be in reset, let's try to take it
199 * out of it. If it fails or is unavailable, skip it.
200 */
201 if (!bcm53xx_idm_device_init(loc, sc->sc_bst, sc->sc_bsh))
202 continue;
203
204 cfdata_t cf = config_search(self, &ccbaa,
205 CFARGS(.submatch = bcmccb_find));
206 if (cf != NULL)
207 config_attach(self, cf, &ccbaa, bcmccb_print,
208 CFARGS_NONE);
209 }
210 }
211