2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
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
28 * Vybrid Family Analog components control digital interface (ANADIG)
29 * Chapter 11, Vybrid Reference Manual, Rev. 5, 07/2013
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/module.h>
40 #include <sys/malloc.h>
42 #include <sys/timeet.h>
43 #include <sys/timetc.h>
44 #include <sys/watchdog.h>
46 #include <dev/fdt/fdt_common.h>
47 #include <dev/ofw/openfirm.h>
48 #include <dev/ofw/ofw_bus.h>
49 #include <dev/ofw/ofw_bus_subr.h>
51 #include <machine/bus.h>
52 #include <machine/fdt.h>
53 #include <machine/cpu.h>
54 #include <machine/intr.h>
56 #include <arm/freescale/vybrid/vf_common.h>
58 #define ANADIG_PLL3_CTRL 0x010 /* PLL3 Control */
59 #define ANADIG_PLL7_CTRL 0x020 /* PLL7 Control */
60 #define ANADIG_PLL2_CTRL 0x030 /* PLL2 Control */
61 #define ANADIG_PLL2_SS 0x040 /* PLL2 Spread Spectrum */
62 #define ANADIG_PLL2_NUM 0x050 /* PLL2 Numerator */
63 #define ANADIG_PLL2_DENOM 0x060 /* PLL2 Denominator */
64 #define ANADIG_PLL4_CTRL 0x070 /* PLL4 Control */
65 #define ANADIG_PLL4_NUM 0x080 /* PLL4 Numerator */
66 #define ANADIG_PLL4_DENOM 0x090 /* PLL4 Denominator */
67 #define ANADIG_PLL6_CTRL 0x0A0 /* PLL6 Control */
68 #define ANADIG_PLL6_NUM 0x0B0 /* PLL6 Numerator */
69 #define ANADIG_PLL6_DENOM 0x0C0 /* PLL6 Denominator */
70 #define ANADIG_PLL5_CTRL 0x0E0 /* PLL5 Control */
71 #define ANADIG_PLL3_PFD 0x0F0 /* PLL3 PFD */
72 #define ANADIG_PLL2_PFD 0x100 /* PLL2 PFD */
73 #define ANADIG_REG_1P1 0x110 /* Regulator 1P1 */
74 #define ANADIG_REG_3P0 0x120 /* Regulator 3P0 */
75 #define ANADIG_REG_2P5 0x130 /* Regulator 2P5 */
76 #define ANADIG_ANA_MISC0 0x150 /* Analog Miscellaneous */
77 #define ANADIG_ANA_MISC1 0x160 /* Analog Miscellaneous */
78 #define ANADIG_ANADIG_DIGPROG 0x260 /* Digital Program */
79 #define ANADIG_PLL1_CTRL 0x270 /* PLL1 Control */
80 #define ANADIG_PLL1_SS 0x280 /* PLL1 Spread Spectrum */
81 #define ANADIG_PLL1_NUM 0x290 /* PLL1 Numerator */
82 #define ANADIG_PLL1_DENOM 0x2A0 /* PLL1 Denominator */
83 #define ANADIG_PLL1_PFD 0x2B0 /* PLL1_PFD */
84 #define ANADIG_PLL_LOCK 0x2C0 /* PLL Lock */
86 #define USB_VBUS_DETECT(n) (0x1A0 + 0x60 * n)
87 #define USB_CHRG_DETECT(n) (0x1B0 + 0x60 * n)
88 #define USB_VBUS_DETECT_STATUS(n) (0x1C0 + 0x60 * n)
89 #define USB_CHRG_DETECT_STATUS(n) (0x1D0 + 0x60 * n)
90 #define USB_LOOPBACK(n) (0x1E0 + 0x60 * n)
91 #define USB_MISC(n) (0x1F0 + 0x60 * n)
93 #define ANADIG_PLL_LOCKED (1 << 31)
94 #define ENABLE_LINREG (1 << 0)
95 #define EN_CLK_TO_UTMI (1 << 30)
97 #define CTRL_BYPASS (1 << 16)
98 #define CTRL_PWR (1 << 12)
99 #define CTRL_PLL_EN (1 << 13)
100 #define EN_USB_CLKS (1 << 6)
102 struct anadig_softc {
103 struct resource *res[1];
105 bus_space_handle_t bsh;
108 static struct resource_spec anadig_spec[] = {
109 { SYS_RES_MEMORY, 0, RF_ACTIVE },
114 anadig_probe(device_t dev)
117 if (!ofw_bus_is_compatible(dev, "fsl,mvf600-anadig"))
120 device_set_desc(dev, "Vybrid Family ANADIG Unit");
121 return (BUS_PROBE_DEFAULT);
125 enable_pll(struct anadig_softc *sc, int pll_ctrl)
129 reg = READ4(sc, pll_ctrl);
130 reg &= ~(CTRL_BYPASS | CTRL_PWR);
131 if (pll_ctrl == ANADIG_PLL3_CTRL || pll_ctrl == ANADIG_PLL7_CTRL) {
132 /* It is USB PLL. Power bit logic is reversed */
133 reg |= (CTRL_PWR | EN_USB_CLKS);
135 WRITE4(sc, pll_ctrl, reg);
137 /* Wait for PLL lock */
138 while (!(READ4(sc, pll_ctrl) & ANADIG_PLL_LOCKED))
141 reg = READ4(sc, pll_ctrl);
142 reg |= (CTRL_PLL_EN);
143 WRITE4(sc, pll_ctrl, reg);
149 anadig_attach(device_t dev)
151 struct anadig_softc *sc;
154 sc = device_get_softc(dev);
156 if (bus_alloc_resources(dev, anadig_spec, sc->res)) {
157 device_printf(dev, "could not allocate resources\n");
161 /* Memory interface */
162 sc->bst = rman_get_bustag(sc->res[0]);
163 sc->bsh = rman_get_bushandle(sc->res[0]);
165 /* Enable USB PLLs */
166 enable_pll(sc, ANADIG_PLL3_CTRL);
167 enable_pll(sc, ANADIG_PLL7_CTRL);
170 enable_pll(sc, ANADIG_PLL1_CTRL);
171 enable_pll(sc, ANADIG_PLL2_CTRL);
172 enable_pll(sc, ANADIG_PLL4_CTRL);
173 enable_pll(sc, ANADIG_PLL5_CTRL);
174 enable_pll(sc, ANADIG_PLL6_CTRL);
176 /* Enable USB voltage regulator */
177 reg = READ4(sc, ANADIG_REG_3P0);
178 reg |= (ENABLE_LINREG);
179 WRITE4(sc, ANADIG_REG_3P0, reg);
181 /* Give clocks to USB */
182 reg = READ4(sc, USB_MISC(0));
183 reg |= (EN_CLK_TO_UTMI);
184 WRITE4(sc, USB_MISC(0), reg);
186 reg = READ4(sc, USB_MISC(1));
187 reg |= (EN_CLK_TO_UTMI);
188 WRITE4(sc, USB_MISC(1), reg);
191 printf("USB_ANALOG_USB_MISC(0) == 0x%08x\n",
192 READ4(sc, USB_ANALOG_USB_MISC(0)));
193 printf("USB_ANALOG_USB_MISC(1) == 0x%08x\n",
194 READ4(sc, USB_ANALOG_USB_MISC(1)));
200 static device_method_t anadig_methods[] = {
201 DEVMETHOD(device_probe, anadig_probe),
202 DEVMETHOD(device_attach, anadig_attach),
206 static driver_t anadig_driver = {
209 sizeof(struct anadig_softc),
212 static devclass_t anadig_devclass;
214 DRIVER_MODULE(anadig, simplebus, anadig_driver, anadig_devclass, 0, 0);