1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2013-2014 Freescale Semiconductor, Inc.
4 */
5
6#include <linux/bits.h>
7#include <linux/clk.h>
8#include <linux/clkdev.h>
9#include <linux/clk/imx.h>
10#include <linux/err.h>
11#include <linux/of.h>
12#include <linux/of_address.h>
13#include <linux/of_irq.h>
14#include <dt-bindings/clock/imx6sl-clock.h>
15
16#include "clk.h"
17
18#define CCSR 0xc
19#define BM_CCSR_PLL1_SW_CLK_SEL BIT(2)
20#define CACRR 0x10
21#define CDHIPR 0x48
22#define BM_CDHIPR_ARM_PODF_BUSY BIT(16)
23#define ARM_WAIT_DIV_396M 2
24#define ARM_WAIT_DIV_792M 4
25#define ARM_WAIT_DIV_996M 6
26
27#define PLL_ARM 0x0
28#define BM_PLL_ARM_DIV_SELECT 0x7f
29#define BM_PLL_ARM_POWERDOWN BIT(12)
30#define BM_PLL_ARM_ENABLE BIT(13)
31#define BM_PLL_ARM_LOCK BIT(31)
32#define PLL_ARM_DIV_792M 66
33
34static const char *step_sels[] = { "osc", "pll2_pfd2", };
35static const char *pll1_sw_sels[] = { "pll1_sys", "step", };
36static const char *ocram_alt_sels[] = { "pll2_pfd2", "pll3_pfd1", };
37static const char *ocram_sels[] = { "periph", "ocram_alt_sels", };
38static const char *pre_periph_sels[] = { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", };
39static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", };
40static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", };
41static const char *periph_sels[] = { "pre_periph_sel", "periph_clk2_podf", };
42static const char *periph2_sels[] = { "pre_periph2_sel", "periph2_clk2_podf", };
43static const char *csi_sels[] = { "osc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", };
44static const char *lcdif_axi_sels[] = { "pll2_bus", "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", };
45static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", };
46static const char *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", };
47static const char *perclk_sels[] = { "ipg", "osc", };
48static const char *pxp_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd3", };
49static const char *epdc_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd2", };
50static const char *gpu2d_ovg_sels[] = { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", };
51static const char *gpu2d_sels[] = { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", };
52static const char *lcdif_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", };
53static const char *epdc_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", };
54static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", };
55static const char *ecspi_sels[] = { "pll3_60m", "osc", };
56static const char *uart_sels[] = { "pll3_80m", "osc", };
57static const char *lvds_sels[] = {
58 "pll1_sys", "pll2_bus", "pll2_pfd0", "pll2_pfd1", "pll2_pfd2", "dummy", "pll4_audio", "pll5_video",
59 "dummy", "enet_ref", "dummy", "dummy", "pll3_usb_otg", "pll7_usb_host", "pll3_pfd0", "pll3_pfd1",
60 "pll3_pfd2", "pll3_pfd3", "osc", "dummy", "dummy", "dummy", "dummy", "dummy",
61 "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
62};
63static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", };
64static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", };
65static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", };
66static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", };
67static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", };
68static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", };
69static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", };
70static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", };
71
72static const struct clk_div_table clk_enet_ref_table[] = {
73 { .val = 0, .div = 20, },
74 { .val = 1, .div = 10, },
75 { .val = 2, .div = 5, },
76 { .val = 3, .div = 4, },
77 { }
78};
79
80static const struct clk_div_table post_div_table[] = {
81 { .val = 2, .div = 1, },
82 { .val = 1, .div = 2, },
83 { .val = 0, .div = 4, },
84 { }
85};
86
87static const struct clk_div_table video_div_table[] = {
88 { .val = 0, .div = 1, },
89 { .val = 1, .div = 2, },
90 { .val = 2, .div = 1, },
91 { .val = 3, .div = 4, },
92 { }
93};
94
95static unsigned int share_count_ssi1;
96static unsigned int share_count_ssi2;
97static unsigned int share_count_ssi3;
98static unsigned int share_count_spdif;
99
100static struct clk_hw **hws;
101static struct clk_hw_onecell_data *clk_hw_data;
102static void __iomem *ccm_base;
103static void __iomem *anatop_base;
104
105/*
106 * ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken
107 * during WAIT mode entry process could cause cache memory
108 * corruption.
109 *
110 * Software workaround:
111 * To prevent this issue from occurring, software should ensure that the
112 * ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before
113 * entering WAIT mode.
114 *
115 * This function will set the ARM clk to max value within the 12:5 limit.
116 * As IPG clock is fixed at 66MHz(so ARM freq must not exceed 158.4MHz),
117 * ARM freq are one of below setpoints: 396MHz, 792MHz and 996MHz, since
118 * the clk APIs can NOT be called in idle thread(may cause kernel schedule
119 * as there is sleep function in PLL wait function), so here we just slow
120 * down ARM to below freq according to previous freq:
121 *
122 * run mode wait mode
123 * 396MHz -> 132MHz;
124 * 792MHz -> 158.4MHz;
125 * 996MHz -> 142.3MHz;
126 */
127static int imx6sl_get_arm_divider_for_wait(void)
128{
129 if (readl_relaxed(ccm_base + CCSR) & BM_CCSR_PLL1_SW_CLK_SEL) {
130 return ARM_WAIT_DIV_396M;
131 } else {
132 if ((readl_relaxed(anatop_base + PLL_ARM) &
133 BM_PLL_ARM_DIV_SELECT) == PLL_ARM_DIV_792M)
134 return ARM_WAIT_DIV_792M;
135 else
136 return ARM_WAIT_DIV_996M;
137 }
138}
139
140static void imx6sl_enable_pll_arm(bool enable)
141{
142 static u32 saved_pll_arm;
143 u32 val;
144
145 if (enable) {
146 saved_pll_arm = val = readl_relaxed(anatop_base + PLL_ARM);
147 val |= BM_PLL_ARM_ENABLE;
148 val &= ~BM_PLL_ARM_POWERDOWN;
149 writel_relaxed(val, anatop_base + PLL_ARM);
150 while (!(readl_relaxed(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK))
151 ;
152 } else {
153 writel_relaxed(saved_pll_arm, anatop_base + PLL_ARM);
154 }
155}
156
157void imx6sl_set_wait_clk(bool enter)
158{
159 static unsigned long saved_arm_div;
160 int arm_div_for_wait = imx6sl_get_arm_divider_for_wait();
161
162 /*
163 * According to hardware design, arm podf change need
164 * PLL1 clock enabled.
165 */
166 if (arm_div_for_wait == ARM_WAIT_DIV_396M)
167 imx6sl_enable_pll_arm(enable: true);
168
169 if (enter) {
170 saved_arm_div = readl_relaxed(ccm_base + CACRR);
171 writel_relaxed(arm_div_for_wait, ccm_base + CACRR);
172 } else {
173 writel_relaxed(saved_arm_div, ccm_base + CACRR);
174 }
175 while (__raw_readl(addr: ccm_base + CDHIPR) & BM_CDHIPR_ARM_PODF_BUSY)
176 ;
177
178 if (arm_div_for_wait == ARM_WAIT_DIV_396M)
179 imx6sl_enable_pll_arm(enable: false);
180}
181
182static void __init imx6sl_clocks_init(struct device_node *ccm_node)
183{
184 struct device_node *np;
185 void __iomem *base;
186 int ret;
187
188 clk_hw_data = kzalloc(struct_size(clk_hw_data, hws,
189 IMX6SL_CLK_END), GFP_KERNEL);
190 if (WARN_ON(!clk_hw_data))
191 return;
192
193 clk_hw_data->num = IMX6SL_CLK_END;
194 hws = clk_hw_data->hws;
195
196 hws[IMX6SL_CLK_DUMMY] = imx_clk_hw_fixed(name: "dummy", rate: 0);
197 hws[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock_hw(name: "ckil", rate: 0);
198 hws[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock_hw(name: "osc", rate: 0);
199 /* Clock source from external clock via CLK1 PAD */
200 hws[IMX6SL_CLK_ANACLK1] = imx_obtain_fixed_clock_hw(name: "anaclk1", rate: 0);
201
202 np = of_find_compatible_node(NULL, NULL, compat: "fsl,imx6sl-anatop");
203 base = of_iomap(node: np, index: 0);
204 WARN_ON(!base);
205 of_node_put(node: np);
206 anatop_base = base;
207
208 hws[IMX6SL_PLL1_BYPASS_SRC] = imx_clk_hw_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
209 hws[IMX6SL_PLL2_BYPASS_SRC] = imx_clk_hw_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
210 hws[IMX6SL_PLL3_BYPASS_SRC] = imx_clk_hw_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
211 hws[IMX6SL_PLL4_BYPASS_SRC] = imx_clk_hw_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
212 hws[IMX6SL_PLL5_BYPASS_SRC] = imx_clk_hw_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
213 hws[IMX6SL_PLL6_BYPASS_SRC] = imx_clk_hw_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
214 hws[IMX6SL_PLL7_BYPASS_SRC] = imx_clk_hw_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
215
216 /* type name parent_name base div_mask */
217 hws[IMX6SL_CLK_PLL1] = imx_clk_hw_pllv3(type: IMX_PLLV3_SYS, name: "pll1", parent_name: "osc", base: base + 0x00, div_mask: 0x7f);
218 hws[IMX6SL_CLK_PLL2] = imx_clk_hw_pllv3(type: IMX_PLLV3_GENERIC, name: "pll2", parent_name: "osc", base: base + 0x30, div_mask: 0x1);
219 hws[IMX6SL_CLK_PLL3] = imx_clk_hw_pllv3(type: IMX_PLLV3_USB, name: "pll3", parent_name: "osc", base: base + 0x10, div_mask: 0x3);
220 hws[IMX6SL_CLK_PLL4] = imx_clk_hw_pllv3(type: IMX_PLLV3_AV, name: "pll4", parent_name: "osc", base: base + 0x70, div_mask: 0x7f);
221 hws[IMX6SL_CLK_PLL5] = imx_clk_hw_pllv3(type: IMX_PLLV3_AV, name: "pll5", parent_name: "osc", base: base + 0xa0, div_mask: 0x7f);
222 hws[IMX6SL_CLK_PLL6] = imx_clk_hw_pllv3(type: IMX_PLLV3_ENET, name: "pll6", parent_name: "osc", base: base + 0xe0, div_mask: 0x3);
223 hws[IMX6SL_CLK_PLL7] = imx_clk_hw_pllv3(type: IMX_PLLV3_USB, name: "pll7", parent_name: "osc", base: base + 0x20, div_mask: 0x3);
224
225 hws[IMX6SL_PLL1_BYPASS] = imx_clk_hw_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT);
226 hws[IMX6SL_PLL2_BYPASS] = imx_clk_hw_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT);
227 hws[IMX6SL_PLL3_BYPASS] = imx_clk_hw_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT);
228 hws[IMX6SL_PLL4_BYPASS] = imx_clk_hw_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT);
229 hws[IMX6SL_PLL5_BYPASS] = imx_clk_hw_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT);
230 hws[IMX6SL_PLL6_BYPASS] = imx_clk_hw_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT);
231 hws[IMX6SL_PLL7_BYPASS] = imx_clk_hw_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT);
232
233 /* Do not bypass PLLs initially */
234 clk_set_parent(clk: hws[IMX6SL_PLL1_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL1]->clk);
235 clk_set_parent(clk: hws[IMX6SL_PLL2_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL2]->clk);
236 clk_set_parent(clk: hws[IMX6SL_PLL3_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL3]->clk);
237 clk_set_parent(clk: hws[IMX6SL_PLL4_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL4]->clk);
238 clk_set_parent(clk: hws[IMX6SL_PLL5_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL5]->clk);
239 clk_set_parent(clk: hws[IMX6SL_PLL6_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL6]->clk);
240 clk_set_parent(clk: hws[IMX6SL_PLL7_BYPASS]->clk, parent: hws[IMX6SL_CLK_PLL7]->clk);
241
242 hws[IMX6SL_CLK_PLL1_SYS] = imx_clk_hw_gate("pll1_sys", "pll1_bypass", base + 0x00, 13);
243 hws[IMX6SL_CLK_PLL2_BUS] = imx_clk_hw_gate("pll2_bus", "pll2_bypass", base + 0x30, 13);
244 hws[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_hw_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13);
245 hws[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_hw_gate("pll4_audio", "pll4_bypass", base + 0x70, 13);
246 hws[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_hw_gate("pll5_video", "pll5_bypass", base + 0xa0, 13);
247 hws[IMX6SL_CLK_PLL6_ENET] = imx_clk_hw_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13);
248 hws[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_hw_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13);
249
250 hws[IMX6SL_CLK_LVDS1_SEL] = imx_clk_hw_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
251 hws[IMX6SL_CLK_LVDS1_OUT] = imx_clk_hw_gate_exclusive(name: "lvds1_out", parent: "lvds1_sel", reg: base + 0x160, shift: 10, BIT(12));
252 hws[IMX6SL_CLK_LVDS1_IN] = imx_clk_hw_gate_exclusive(name: "lvds1_in", parent: "anaclk1", reg: base + 0x160, shift: 12, BIT(10));
253
254 /*
255 * usbphy1 and usbphy2 are implemented as dummy gates using reserve
256 * bit 20. They are used by phy driver to keep the refcount of
257 * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be
258 * turned on during boot, and software will not need to control it
259 * anymore after that.
260 */
261 hws[IMX6SL_CLK_USBPHY1] = imx_clk_hw_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20);
262 hws[IMX6SL_CLK_USBPHY2] = imx_clk_hw_gate("usbphy2", "pll7_usb_host", base + 0x20, 20);
263 hws[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_hw_gate("usbphy1_gate", "dummy", base + 0x10, 6);
264 hws[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_hw_gate("usbphy2_gate", "dummy", base + 0x20, 6);
265
266 /* dev name parent_name flags reg shift width div: flags, div_table lock */
267 hws[IMX6SL_CLK_PLL4_POST_DIV] = clk_hw_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock);
268 hws[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_hw_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock);
269 hws[IMX6SL_CLK_PLL5_POST_DIV] = clk_hw_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock);
270 hws[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_hw_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock);
271 hws[IMX6SL_CLK_ENET_REF] = clk_hw_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock);
272
273 /* name parent_name reg idx */
274 hws[IMX6SL_CLK_PLL2_PFD0] = imx_clk_hw_pfd(name: "pll2_pfd0", parent_name: "pll2_bus", reg: base + 0x100, idx: 0);
275 hws[IMX6SL_CLK_PLL2_PFD1] = imx_clk_hw_pfd(name: "pll2_pfd1", parent_name: "pll2_bus", reg: base + 0x100, idx: 1);
276 hws[IMX6SL_CLK_PLL2_PFD2] = imx_clk_hw_pfd(name: "pll2_pfd2", parent_name: "pll2_bus", reg: base + 0x100, idx: 2);
277 hws[IMX6SL_CLK_PLL3_PFD0] = imx_clk_hw_pfd(name: "pll3_pfd0", parent_name: "pll3_usb_otg", reg: base + 0xf0, idx: 0);
278 hws[IMX6SL_CLK_PLL3_PFD1] = imx_clk_hw_pfd(name: "pll3_pfd1", parent_name: "pll3_usb_otg", reg: base + 0xf0, idx: 1);
279 hws[IMX6SL_CLK_PLL3_PFD2] = imx_clk_hw_pfd(name: "pll3_pfd2", parent_name: "pll3_usb_otg", reg: base + 0xf0, idx: 2);
280 hws[IMX6SL_CLK_PLL3_PFD3] = imx_clk_hw_pfd(name: "pll3_pfd3", parent_name: "pll3_usb_otg", reg: base + 0xf0, idx: 3);
281
282 /* name parent_name mult div */
283 hws[IMX6SL_CLK_PLL2_198M] = imx_clk_hw_fixed_factor(name: "pll2_198m", parent: "pll2_pfd2", mult: 1, div: 2);
284 hws[IMX6SL_CLK_PLL3_120M] = imx_clk_hw_fixed_factor(name: "pll3_120m", parent: "pll3_usb_otg", mult: 1, div: 4);
285 hws[IMX6SL_CLK_PLL3_80M] = imx_clk_hw_fixed_factor(name: "pll3_80m", parent: "pll3_usb_otg", mult: 1, div: 6);
286 hws[IMX6SL_CLK_PLL3_60M] = imx_clk_hw_fixed_factor(name: "pll3_60m", parent: "pll3_usb_otg", mult: 1, div: 8);
287
288 np = ccm_node;
289 base = of_iomap(node: np, index: 0);
290 WARN_ON(!base);
291 ccm_base = base;
292
293 /* name reg shift width parent_names num_parents */
294 hws[IMX6SL_CLK_STEP] = imx_clk_hw_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels));
295 hws[IMX6SL_CLK_PLL1_SW] = imx_clk_hw_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels));
296 hws[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_hw_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels));
297 hws[IMX6SL_CLK_OCRAM_SEL] = imx_clk_hw_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels));
298 hws[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_hw_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels));
299 hws[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_hw_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels));
300 hws[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_hw_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
301 hws[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_hw_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
302 hws[IMX6SL_CLK_CSI_SEL] = imx_clk_hw_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels));
303 hws[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_hw_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels));
304 hws[IMX6SL_CLK_USDHC1_SEL] = imx_clk_hw_fixup_mux(name: "usdhc1_sel", reg: base + 0x1c, shift: 16, width: 1, parents: usdhc_sels, ARRAY_SIZE(usdhc_sels), fixup: imx_cscmr1_fixup);
305 hws[IMX6SL_CLK_USDHC2_SEL] = imx_clk_hw_fixup_mux(name: "usdhc2_sel", reg: base + 0x1c, shift: 17, width: 1, parents: usdhc_sels, ARRAY_SIZE(usdhc_sels), fixup: imx_cscmr1_fixup);
306 hws[IMX6SL_CLK_USDHC3_SEL] = imx_clk_hw_fixup_mux(name: "usdhc3_sel", reg: base + 0x1c, shift: 18, width: 1, parents: usdhc_sels, ARRAY_SIZE(usdhc_sels), fixup: imx_cscmr1_fixup);
307 hws[IMX6SL_CLK_USDHC4_SEL] = imx_clk_hw_fixup_mux(name: "usdhc4_sel", reg: base + 0x1c, shift: 19, width: 1, parents: usdhc_sels, ARRAY_SIZE(usdhc_sels), fixup: imx_cscmr1_fixup);
308 hws[IMX6SL_CLK_SSI1_SEL] = imx_clk_hw_fixup_mux(name: "ssi1_sel", reg: base + 0x1c, shift: 10, width: 2, parents: ssi_sels, ARRAY_SIZE(ssi_sels), fixup: imx_cscmr1_fixup);
309 hws[IMX6SL_CLK_SSI2_SEL] = imx_clk_hw_fixup_mux(name: "ssi2_sel", reg: base + 0x1c, shift: 12, width: 2, parents: ssi_sels, ARRAY_SIZE(ssi_sels), fixup: imx_cscmr1_fixup);
310 hws[IMX6SL_CLK_SSI3_SEL] = imx_clk_hw_fixup_mux(name: "ssi3_sel", reg: base + 0x1c, shift: 14, width: 2, parents: ssi_sels, ARRAY_SIZE(ssi_sels), fixup: imx_cscmr1_fixup);
311 hws[IMX6SL_CLK_PERCLK_SEL] = imx_clk_hw_fixup_mux(name: "perclk_sel", reg: base + 0x1c, shift: 6, width: 1, parents: perclk_sels, ARRAY_SIZE(perclk_sels), fixup: imx_cscmr1_fixup);
312 hws[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_hw_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels));
313 hws[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_hw_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels));
314 hws[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_hw_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels));
315 hws[IMX6SL_CLK_GPU2D_SEL] = imx_clk_hw_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels));
316 hws[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_hw_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels));
317 hws[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_hw_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels));
318 hws[IMX6SL_CLK_SPDIF0_SEL] = imx_clk_hw_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels));
319 hws[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_hw_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels));
320 hws[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_hw_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels));
321 hws[IMX6SL_CLK_ECSPI_SEL] = imx_clk_hw_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels));
322 hws[IMX6SL_CLK_UART_SEL] = imx_clk_hw_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels));
323
324 /* name reg shift width busy: reg, shift parent_names num_parents */
325 hws[IMX6SL_CLK_PERIPH] = imx_clk_hw_busy_mux(name: "periph", reg: base + 0x14, shift: 25, width: 1, busy_reg: base + 0x48, busy_shift: 5, parent_names: periph_sels, ARRAY_SIZE(periph_sels));
326 hws[IMX6SL_CLK_PERIPH2] = imx_clk_hw_busy_mux(name: "periph2", reg: base + 0x14, shift: 26, width: 1, busy_reg: base + 0x48, busy_shift: 3, parent_names: periph2_sels, ARRAY_SIZE(periph2_sels));
327
328 /* name parent_name reg shift width */
329 hws[IMX6SL_CLK_OCRAM_PODF] = imx_clk_hw_busy_divider(name: "ocram_podf", parent_name: "ocram_sel", reg: base + 0x14, shift: 16, width: 3, busy_reg: base + 0x48, busy_shift: 0);
330 hws[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_hw_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3);
331 hws[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_hw_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3);
332 hws[IMX6SL_CLK_IPG] = imx_clk_hw_divider("ipg", "ahb", base + 0x14, 8, 2);
333 hws[IMX6SL_CLK_CSI_PODF] = imx_clk_hw_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3);
334 hws[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_hw_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3);
335 hws[IMX6SL_CLK_USDHC1_PODF] = imx_clk_hw_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3);
336 hws[IMX6SL_CLK_USDHC2_PODF] = imx_clk_hw_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3);
337 hws[IMX6SL_CLK_USDHC3_PODF] = imx_clk_hw_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3);
338 hws[IMX6SL_CLK_USDHC4_PODF] = imx_clk_hw_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3);
339 hws[IMX6SL_CLK_SSI1_PRED] = imx_clk_hw_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3);
340 hws[IMX6SL_CLK_SSI1_PODF] = imx_clk_hw_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6);
341 hws[IMX6SL_CLK_SSI2_PRED] = imx_clk_hw_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3);
342 hws[IMX6SL_CLK_SSI2_PODF] = imx_clk_hw_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6);
343 hws[IMX6SL_CLK_SSI3_PRED] = imx_clk_hw_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3);
344 hws[IMX6SL_CLK_SSI3_PODF] = imx_clk_hw_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6);
345 hws[IMX6SL_CLK_PERCLK] = imx_clk_hw_fixup_divider(name: "perclk", parent: "perclk_sel", reg: base + 0x1c, shift: 0, width: 6, fixup: imx_cscmr1_fixup);
346 hws[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_hw_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3);
347 hws[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_hw_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3);
348 hws[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_hw_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3);
349 hws[IMX6SL_CLK_GPU2D_PODF] = imx_clk_hw_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3);
350 hws[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_hw_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3);
351 hws[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_hw_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3);
352 hws[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_hw_fixup_divider(name: "lcdif_pix_podf", parent: "lcdif_pix_pred", reg: base + 0x1c, shift: 20, width: 3, fixup: imx_cscmr1_fixup);
353 hws[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_hw_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3);
354 hws[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_hw_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3);
355 hws[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_hw_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3);
356 hws[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_hw_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3);
357 hws[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_hw_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3);
358 hws[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_hw_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3);
359 hws[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_hw_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3);
360 hws[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_hw_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6);
361 hws[IMX6SL_CLK_UART_ROOT] = imx_clk_hw_divider("uart_root", "uart_sel", base + 0x24, 0, 6);
362
363 /* name parent_name reg shift width busy: reg, shift */
364 hws[IMX6SL_CLK_AHB] = imx_clk_hw_busy_divider(name: "ahb", parent_name: "periph", reg: base + 0x14, shift: 10, width: 3, busy_reg: base + 0x48, busy_shift: 1);
365 hws[IMX6SL_CLK_MMDC_ROOT] = imx_clk_hw_busy_divider(name: "mmdc", parent_name: "periph2", reg: base + 0x14, shift: 3, width: 3, busy_reg: base + 0x48, busy_shift: 2);
366 hws[IMX6SL_CLK_ARM] = imx_clk_hw_busy_divider(name: "arm", parent_name: "pll1_sw", reg: base + 0x10, shift: 0, width: 3, busy_reg: base + 0x48, busy_shift: 16);
367
368 /* name parent_name reg shift */
369 hws[IMX6SL_CLK_ECSPI1] = imx_clk_hw_gate2("ecspi1", "ecspi_root", base + 0x6c, 0);
370 hws[IMX6SL_CLK_ECSPI2] = imx_clk_hw_gate2("ecspi2", "ecspi_root", base + 0x6c, 2);
371 hws[IMX6SL_CLK_ECSPI3] = imx_clk_hw_gate2("ecspi3", "ecspi_root", base + 0x6c, 4);
372 hws[IMX6SL_CLK_ECSPI4] = imx_clk_hw_gate2("ecspi4", "ecspi_root", base + 0x6c, 6);
373 hws[IMX6SL_CLK_ENET] = imx_clk_hw_gate2("enet", "ipg", base + 0x6c, 10);
374 hws[IMX6SL_CLK_EPIT1] = imx_clk_hw_gate2("epit1", "perclk", base + 0x6c, 12);
375 hws[IMX6SL_CLK_EPIT2] = imx_clk_hw_gate2("epit2", "perclk", base + 0x6c, 14);
376 hws[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_hw_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16);
377 hws[IMX6SL_CLK_GPT] = imx_clk_hw_gate2("gpt", "perclk", base + 0x6c, 20);
378 hws[IMX6SL_CLK_GPT_SERIAL] = imx_clk_hw_gate2("gpt_serial", "perclk", base + 0x6c, 22);
379 hws[IMX6SL_CLK_GPU2D_OVG] = imx_clk_hw_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26);
380 hws[IMX6SL_CLK_I2C1] = imx_clk_hw_gate2("i2c1", "perclk", base + 0x70, 6);
381 hws[IMX6SL_CLK_I2C2] = imx_clk_hw_gate2("i2c2", "perclk", base + 0x70, 8);
382 hws[IMX6SL_CLK_I2C3] = imx_clk_hw_gate2("i2c3", "perclk", base + 0x70, 10);
383 hws[IMX6SL_CLK_OCOTP] = imx_clk_hw_gate2("ocotp", "ipg", base + 0x70, 12);
384 hws[IMX6SL_CLK_CSI] = imx_clk_hw_gate2("csi", "csi_podf", base + 0x74, 0);
385 hws[IMX6SL_CLK_PXP_AXI] = imx_clk_hw_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2);
386 hws[IMX6SL_CLK_EPDC_AXI] = imx_clk_hw_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4);
387 hws[IMX6SL_CLK_LCDIF_AXI] = imx_clk_hw_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6);
388 hws[IMX6SL_CLK_LCDIF_PIX] = imx_clk_hw_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8);
389 hws[IMX6SL_CLK_EPDC_PIX] = imx_clk_hw_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10);
390 hws[IMX6SL_CLK_MMDC_P0_IPG] = imx_clk_hw_gate2_flags("mmdc_p0_ipg", "ipg", base + 0x74, 24, CLK_IS_CRITICAL);
391 hws[IMX6SL_CLK_MMDC_P1_IPG] = imx_clk_hw_gate2("mmdc_p1_ipg", "ipg", base + 0x74, 26);
392 hws[IMX6SL_CLK_OCRAM] = imx_clk_hw_gate2("ocram", "ocram_podf", base + 0x74, 28);
393 hws[IMX6SL_CLK_PWM1] = imx_clk_hw_gate2("pwm1", "perclk", base + 0x78, 16);
394 hws[IMX6SL_CLK_PWM2] = imx_clk_hw_gate2("pwm2", "perclk", base + 0x78, 18);
395 hws[IMX6SL_CLK_PWM3] = imx_clk_hw_gate2("pwm3", "perclk", base + 0x78, 20);
396 hws[IMX6SL_CLK_PWM4] = imx_clk_hw_gate2("pwm4", "perclk", base + 0x78, 22);
397 hws[IMX6SL_CLK_SDMA] = imx_clk_hw_gate2("sdma", "ipg", base + 0x7c, 6);
398 hws[IMX6SL_CLK_SPBA] = imx_clk_hw_gate2("spba", "ipg", base + 0x7c, 12);
399 hws[IMX6SL_CLK_SPDIF] = imx_clk_hw_gate2_shared("spdif", "spdif0_podf", base + 0x7c, 14, &share_count_spdif);
400 hws[IMX6SL_CLK_SPDIF_GCLK] = imx_clk_hw_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif);
401 hws[IMX6SL_CLK_SSI1_IPG] = imx_clk_hw_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
402 hws[IMX6SL_CLK_SSI2_IPG] = imx_clk_hw_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
403 hws[IMX6SL_CLK_SSI3_IPG] = imx_clk_hw_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
404 hws[IMX6SL_CLK_SSI1] = imx_clk_hw_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1);
405 hws[IMX6SL_CLK_SSI2] = imx_clk_hw_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2);
406 hws[IMX6SL_CLK_SSI3] = imx_clk_hw_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3);
407 hws[IMX6SL_CLK_UART] = imx_clk_hw_gate2("uart", "ipg", base + 0x7c, 24);
408 hws[IMX6SL_CLK_UART_SERIAL] = imx_clk_hw_gate2("uart_serial", "uart_root", base + 0x7c, 26);
409 hws[IMX6SL_CLK_USBOH3] = imx_clk_hw_gate2("usboh3", "ipg", base + 0x80, 0);
410 hws[IMX6SL_CLK_USDHC1] = imx_clk_hw_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2);
411 hws[IMX6SL_CLK_USDHC2] = imx_clk_hw_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4);
412 hws[IMX6SL_CLK_USDHC3] = imx_clk_hw_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6);
413 hws[IMX6SL_CLK_USDHC4] = imx_clk_hw_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8);
414
415 /* Ensure the MMDC CH0 handshake is bypassed */
416 imx_mmdc_mask_handshake(ccm_base: base, chn: 0);
417
418 imx_check_clk_hws(clks: hws, IMX6SL_CLK_END);
419
420 of_clk_add_hw_provider(np, get: of_clk_hw_onecell_get, data: clk_hw_data);
421
422 /* Ensure the AHB clk is at 132MHz. */
423 ret = clk_set_rate(clk: hws[IMX6SL_CLK_AHB]->clk, rate: 132000000);
424 if (ret)
425 pr_warn("%s: failed to set AHB clock rate %d!\n",
426 __func__, ret);
427
428 if (IS_ENABLED(CONFIG_USB_MXS_PHY)) {
429 clk_prepare_enable(clk: hws[IMX6SL_CLK_USBPHY1_GATE]->clk);
430 clk_prepare_enable(clk: hws[IMX6SL_CLK_USBPHY2_GATE]->clk);
431 }
432
433 /* Audio-related clocks configuration */
434 clk_set_parent(clk: hws[IMX6SL_CLK_SPDIF0_SEL]->clk, parent: hws[IMX6SL_CLK_PLL3_PFD3]->clk);
435
436 /* set PLL5 video as lcdif pix parent clock */
437 clk_set_parent(clk: hws[IMX6SL_CLK_LCDIF_PIX_SEL]->clk,
438 parent: hws[IMX6SL_CLK_PLL5_VIDEO_DIV]->clk);
439
440 clk_set_parent(clk: hws[IMX6SL_CLK_LCDIF_AXI_SEL]->clk,
441 parent: hws[IMX6SL_CLK_PLL2_PFD2]->clk);
442
443 imx_register_uart_clocks();
444}
445CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init);
446

source code of linux/drivers/clk/imx/clk-imx6sl.c