1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (C) 2015 Broadcom Corporation
3
4 #include <linux/kernel.h>
5 #include <linux/err.h>
6 #include <linux/clk-provider.h>
7 #include <linux/io.h>
8 #include <linux/of.h>
9 #include <linux/of_address.h>
10
11 #include <dt-bindings/clock/bcm-nsp.h>
12 #include "clk-iproc.h"
13
14 #define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, }
15
16 #define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
17 .pwr_shift = ps, .iso_shift = is }
18
19 #define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
20 .p_reset_shift = prs }
21
22 #define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
23 .ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
24 .ka_width = kaw }
25
26 #define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
27 .hold_shift = hs, .bypass_shift = bs }
28
nsp_armpll_init(struct device_node * node)29 static void __init nsp_armpll_init(struct device_node *node)
30 {
31 iproc_armpll_setup(node);
32 }
33 CLK_OF_DECLARE(nsp_armpll, "brcm,nsp-armpll", nsp_armpll_init);
34
35 static const struct iproc_pll_ctrl genpll = {
36 .flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
37 .aon = AON_VAL(0x0, 1, 12, 0),
38 .reset = RESET_VAL(0x0, 11, 10),
39 .dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3),
40 .ndiv_int = REG_VAL(0x14, 20, 10),
41 .ndiv_frac = REG_VAL(0x14, 0, 20),
42 .pdiv = REG_VAL(0x18, 24, 3),
43 .status = REG_VAL(0x20, 12, 1),
44 };
45
46 static const struct iproc_clk_ctrl genpll_clk[] = {
47 [BCM_NSP_GENPLL_PHY_CLK] = {
48 .channel = BCM_NSP_GENPLL_PHY_CLK,
49 .flags = IPROC_CLK_AON,
50 .enable = ENABLE_VAL(0x4, 12, 6, 18),
51 .mdiv = REG_VAL(0x18, 16, 8),
52 },
53 [BCM_NSP_GENPLL_ENET_SW_CLK] = {
54 .channel = BCM_NSP_GENPLL_ENET_SW_CLK,
55 .flags = IPROC_CLK_AON,
56 .enable = ENABLE_VAL(0x4, 13, 7, 19),
57 .mdiv = REG_VAL(0x18, 8, 8),
58 },
59 [BCM_NSP_GENPLL_USB_PHY_REF_CLK] = {
60 .channel = BCM_NSP_GENPLL_USB_PHY_REF_CLK,
61 .flags = IPROC_CLK_AON,
62 .enable = ENABLE_VAL(0x4, 14, 8, 20),
63 .mdiv = REG_VAL(0x18, 0, 8),
64 },
65 [BCM_NSP_GENPLL_IPROCFAST_CLK] = {
66 .channel = BCM_NSP_GENPLL_IPROCFAST_CLK,
67 .flags = IPROC_CLK_AON,
68 .enable = ENABLE_VAL(0x4, 15, 9, 21),
69 .mdiv = REG_VAL(0x1c, 16, 8),
70 },
71 [BCM_NSP_GENPLL_SATA1_CLK] = {
72 .channel = BCM_NSP_GENPLL_SATA1_CLK,
73 .flags = IPROC_CLK_AON,
74 .enable = ENABLE_VAL(0x4, 16, 10, 22),
75 .mdiv = REG_VAL(0x1c, 8, 8),
76 },
77 [BCM_NSP_GENPLL_SATA2_CLK] = {
78 .channel = BCM_NSP_GENPLL_SATA2_CLK,
79 .flags = IPROC_CLK_AON,
80 .enable = ENABLE_VAL(0x4, 17, 11, 23),
81 .mdiv = REG_VAL(0x1c, 0, 8),
82 },
83 };
84
nsp_genpll_clk_init(struct device_node * node)85 static void __init nsp_genpll_clk_init(struct device_node *node)
86 {
87 iproc_pll_clk_setup(node, &genpll, NULL, 0, genpll_clk,
88 ARRAY_SIZE(genpll_clk));
89 }
90 CLK_OF_DECLARE(nsp_genpll_clk, "brcm,nsp-genpll", nsp_genpll_clk_init);
91
92 static const struct iproc_pll_ctrl lcpll0 = {
93 .flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
94 .aon = AON_VAL(0x0, 1, 24, 0),
95 .reset = RESET_VAL(0x0, 23, 22),
96 .dig_filter = DF_VAL(0x0, 16, 3, 12, 4, 19, 4),
97 .ndiv_int = REG_VAL(0x4, 20, 8),
98 .ndiv_frac = REG_VAL(0x4, 0, 20),
99 .pdiv = REG_VAL(0x4, 28, 3),
100 .status = REG_VAL(0x10, 12, 1),
101 };
102
103 static const struct iproc_clk_ctrl lcpll0_clk[] = {
104 [BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK] = {
105 .channel = BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK,
106 .flags = IPROC_CLK_AON,
107 .enable = ENABLE_VAL(0x0, 6, 3, 9),
108 .mdiv = REG_VAL(0x8, 24, 8),
109 },
110 [BCM_NSP_LCPLL0_SDIO_CLK] = {
111 .channel = BCM_NSP_LCPLL0_SDIO_CLK,
112 .flags = IPROC_CLK_AON,
113 .enable = ENABLE_VAL(0x0, 7, 4, 10),
114 .mdiv = REG_VAL(0x8, 16, 8),
115 },
116 [BCM_NSP_LCPLL0_DDR_PHY_CLK] = {
117 .channel = BCM_NSP_LCPLL0_DDR_PHY_CLK,
118 .flags = IPROC_CLK_AON,
119 .enable = ENABLE_VAL(0x0, 8, 5, 11),
120 .mdiv = REG_VAL(0x8, 8, 8),
121 },
122 };
123
nsp_lcpll0_clk_init(struct device_node * node)124 static void __init nsp_lcpll0_clk_init(struct device_node *node)
125 {
126 iproc_pll_clk_setup(node, &lcpll0, NULL, 0, lcpll0_clk,
127 ARRAY_SIZE(lcpll0_clk));
128 }
129 CLK_OF_DECLARE(nsp_lcpll0_clk, "brcm,nsp-lcpll0", nsp_lcpll0_clk_init);
130