1 /* $NetBSD: sun50i_h6_r_ccu.c,v 1.3 2021/11/10 17:38:11 jakllsch Exp $ */
2
3 /*-
4 * Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30
31 __KERNEL_RCSID(1, "$NetBSD: sun50i_h6_r_ccu.c,v 1.3 2021/11/10 17:38:11 jakllsch Exp $");
32
33 #include <sys/param.h>
34 #include <sys/bus.h>
35 #include <sys/device.h>
36 #include <sys/systm.h>
37
38 #include <dev/fdt/fdtvar.h>
39
40 #include <arm/sunxi/sunxi_ccu.h>
41 #include <arm/sunxi/sun50i_h6_r_ccu.h>
42
43 #define AR100_CFG_REG 0x00
44 #define APB1_CFG_REG 0x0c
45 #define APB2_CFG_REG 0x10
46 #define IR_CFG_REG 0x1c0
47 #define W1_CFG_REG 0x1e0
48
49 static int sun50i_h6_r_ccu_match(device_t, cfdata_t, void *);
50 static void sun50i_h6_r_ccu_attach(device_t, device_t, void *);
51
52 static const struct device_compatible_entry compat_data[] = {
53 { .compat = "allwinner,sun50i-h6-r-ccu" },
54 DEVICE_COMPAT_EOL
55 };
56
57 CFATTACH_DECL_NEW(sunxi_h6_r_ccu, sizeof(struct sunxi_ccu_softc),
58 sun50i_h6_r_ccu_match, sun50i_h6_r_ccu_attach, NULL, NULL);
59
60 static struct sunxi_ccu_reset sun50i_h6_r_ccu_resets[] = {
61 SUNXI_CCU_RESET(H6_R_RST_APB1_TIMER, 0x11c, 16),
62 SUNXI_CCU_RESET(H6_R_RST_APB1_TWD, 0x12c, 16),
63 SUNXI_CCU_RESET(H6_R_RST_APB1_PWM, 0x13c, 16),
64 SUNXI_CCU_RESET(H6_R_RST_APB2_UART, 0x18c, 16),
65 SUNXI_CCU_RESET(H6_R_RST_APB2_I2C, 0x19c, 16),
66 SUNXI_CCU_RESET(H6_R_RST_APB2_RSB, 0x1bc, 16),
67 SUNXI_CCU_RESET(H6_R_RST_APB1_IR, 0x1cc, 16),
68 SUNXI_CCU_RESET(H6_R_RST_APB1_W1, 0x1ec, 16),
69 };
70
71 static const char *ar100_parents[] = { "hosc", "losc", "pll-periph", "iosc" };
72 static const char *apb1_parents[] = { "ahb" };
73 static const char *apb2_parents[] = { "hosc", "losc", "pll-periph", "iosc" };
74 static const char *mod_parents[] = { "losc", "hosc" };
75
76 static struct sunxi_ccu_clk sun50i_h6_r_ccu_clks[] = {
77 SUNXI_CCU_PREDIV(H6_R_CLK_AR100, "ar100", ar100_parents,
78 AR100_CFG_REG, /* reg */
79 __BITS(4,0), /* prediv */
80 __BIT(2), /* prediv_sel */
81 __BITS(9,8), /* div */
82 __BITS(25,24), /* sel */
83 SUNXI_CCU_PREDIV_POWER_OF_TWO),
84
85 SUNXI_CCU_FIXED_FACTOR(H6_R_CLK_AHB, "ahb", "ar100", 1, 1),
86
87 SUNXI_CCU_DIV(H6_R_CLK_APB1, "apb1", apb1_parents,
88 APB1_CFG_REG, /* reg */
89 __BITS(1,0), /* div */
90 0, /* sel */
91 SUNXI_CCU_DIV_POWER_OF_TWO),
92
93 SUNXI_CCU_PREDIV(H6_R_CLK_APB2, "apb2", apb2_parents,
94 APB2_CFG_REG, /* reg */
95 __BITS(4,0), /* prediv */
96 __BIT(2), /* prediv_sel */
97 __BITS(9,8), /* div */
98 __BITS(25,24), /* sel */
99 SUNXI_CCU_PREDIV_POWER_OF_TWO),
100
101 SUNXI_CCU_GATE(H6_R_CLK_APB1_TIMER, "apb1-timer", "apb1", 0x11c, 0),
102 SUNXI_CCU_GATE(H6_R_CLK_APB1_TWD, "apb1-twd", "apb1", 0x12c, 0),
103 SUNXI_CCU_GATE(H6_R_CLK_APB1_PWM, "apb1-pwm", "apb1", 0x13c, 0),
104 SUNXI_CCU_GATE(H6_R_CLK_APB2_UART, "apb2-uart", "apb2", 0x18c, 0),
105 SUNXI_CCU_GATE(H6_R_CLK_APB2_I2C, "apb2-i2c", "apb2", 0x19c, 0),
106 SUNXI_CCU_GATE(H6_R_CLK_APB2_RSB, "apb2-rsb", "apb2", 0x1bc, 0),
107 SUNXI_CCU_GATE(H6_R_CLK_APB1_IR, "apb1-ir", "apb1", 0x1cc, 0),
108 SUNXI_CCU_GATE(H6_R_CLK_APB1_W1, "apb1-w1", "apb1", 0x1ec, 0),
109
110 SUNXI_CCU_NM(H6_R_CLK_IR, "ir", mod_parents,
111 IR_CFG_REG, /* reg */
112 __BITS(4,0), /* n */
113 __BITS(9,8), /* m */
114 __BIT(24), /* sel */
115 __BIT(31), /* enable */
116 0),
117
118 SUNXI_CCU_NM(H6_R_CLK_W1, "w1", mod_parents,
119 W1_CFG_REG, /* reg */
120 __BITS(4,0), /* n */
121 __BITS(9,8), /* m */
122 __BIT(24), /* sel */
123 __BIT(31), /* enable */
124 0),
125 };
126
127 static int
sun50i_h6_r_ccu_match(device_t parent,cfdata_t cf,void * aux)128 sun50i_h6_r_ccu_match(device_t parent, cfdata_t cf, void *aux)
129 {
130 struct fdt_attach_args * const faa = aux;
131
132 return of_compatible_match(faa->faa_phandle, compat_data);
133 }
134
135 static void
sun50i_h6_r_ccu_attach(device_t parent,device_t self,void * aux)136 sun50i_h6_r_ccu_attach(device_t parent, device_t self, void *aux)
137 {
138 struct sunxi_ccu_softc * const sc = device_private(self);
139 struct fdt_attach_args * const faa = aux;
140
141 sc->sc_dev = self;
142 sc->sc_phandle = faa->faa_phandle;
143 sc->sc_bst = faa->faa_bst;
144
145 sc->sc_resets = sun50i_h6_r_ccu_resets;
146 sc->sc_nresets = __arraycount(sun50i_h6_r_ccu_resets);
147
148 sc->sc_clks = sun50i_h6_r_ccu_clks;
149 sc->sc_nclks = __arraycount(sun50i_h6_r_ccu_clks);
150
151 if (sunxi_ccu_attach(sc) != 0)
152 return;
153
154 aprint_naive("\n");
155 aprint_normal(": H6 PRCM CCU\n");
156
157 sunxi_ccu_print(sc);
158 }
159