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ARM: clk-imx6sl: correct the pxp and epdc axi clock selections
[deliverable/linux.git] / arch / arm / mach-imx / clk-imx6sl.c
CommitLineData
45fe6810 1/*
848db4a0 2 * Copyright 2013-2014 Freescale Semiconductor, Inc.
45fe6810
SG		 3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 */
9
10#include <linux/clk.h>
11#include <linux/clkdev.h>
12#include <linux/err.h>
13#include <linux/of.h>
14#include <linux/of_address.h>
15#include <linux/of_irq.h>
16#include <dt-bindings/clock/imx6sl-clock.h>
17
18#include "clk.h"
19#include "common.h"
20
6e6cdf66
AH		 21#define CCSR 0xc
22#define BM_CCSR_PLL1_SW_CLK_SEL (1 << 2)
23#define CACRR 0x10
24#define CDHIPR 0x48
25#define BM_CDHIPR_ARM_PODF_BUSY (1 << 16)
26#define ARM_WAIT_DIV_396M 2
27#define ARM_WAIT_DIV_792M 4
28#define ARM_WAIT_DIV_996M 6
29
30#define PLL_ARM 0x0
31#define BM_PLL_ARM_DIV_SELECT (0x7f << 0)
32#define BM_PLL_ARM_POWERDOWN (1 << 12)
33#define BM_PLL_ARM_ENABLE (1 << 13)
34#define BM_PLL_ARM_LOCK (1 << 31)
35#define PLL_ARM_DIV_792M 66
36
b21c22e3
LY		 37static const char *step_sels[] = { "osc", "pll2_pfd2", };
38static const char *pll1_sw_sels[] = { "pll1_sys", "step", };
39static const char *ocram_alt_sels[] = { "pll2_pfd2", "pll3_pfd1", };
40static const char *ocram_sels[] = { "periph", "ocram_alt_sels", };
41static const char *pre_periph_sels[] = { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", };
42static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", };
43static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", };
44static const char *periph_sels[] = { "pre_periph_sel", "periph_clk2_podf", };
45static const char *periph2_sels[] = { "pre_periph2_sel", "periph2_clk2_podf", };
bad66c3e
FE		 46static const char *csi_sels[] = { "osc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", };
47static const char *lcdif_axi_sels[] = { "pll2_bus", "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", };
b21c22e3
LY		 48static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", };
49static const char *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", };
50static const char *perclk_sels[] = { "ipg", "osc", };
e37c1ad0
FF		 51static const char *pxp_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd3", };
52static const char *epdc_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd2", };
b21c22e3
LY		 53static const char *gpu2d_ovg_sels[] = { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", };
54static const char *gpu2d_sels[] = { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", };
55static const char *lcdif_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", };
56static const char *epdc_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", };
57static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", };
58static const char *ecspi_sels[] = { "pll3_60m", "osc", };
59static const char *uart_sels[] = { "pll3_80m", "osc", };
45fe6810
SG		 60
61static struct clk_div_table clk_enet_ref_table[] = {
62 { .val = 0, .div = 20, },
63 { .val = 1, .div = 10, },
64 { .val = 2, .div = 5, },
65 { .val = 3, .div = 4, },
66 { }
67};
68
69static struct clk_div_table post_div_table[] = {
70 { .val = 2, .div = 1, },
71 { .val = 1, .div = 2, },
72 { .val = 0, .div = 4, },
73 { }
74};
75
76static struct clk_div_table video_div_table[] = {
77 { .val = 0, .div = 1, },
78 { .val = 1, .div = 2, },
79 { .val = 2, .div = 1, },
80 { .val = 3, .div = 4, },
81 { }
82};
83
4e5d0d61 84static struct clk *clks[IMX6SL_CLK_END];
45fe6810 85static struct clk_onecell_data clk_data;
6e6cdf66
AH		 86static void __iomem *ccm_base;
87static void __iomem *anatop_base;
45fe6810 88
17626b7c
AH		 89static const u32 clks_init_on[] __initconst = {
90 IMX6SL_CLK_IPG, IMX6SL_CLK_ARM, IMX6SL_CLK_MMDC_ROOT,
91};
92
751f7e99
AH		 93/*
94 * ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken
95 * during WAIT mode entry process could cause cache memory
96 * corruption.
97 *
98 * Software workaround:
99 * To prevent this issue from occurring, software should ensure that the
100 * ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before
101 * entering WAIT mode.
102 *
103 * This function will set the ARM clk to max value within the 12:5 limit.
6e6cdf66
AH		 104 * As IPG clock is fixed at 66MHz(so ARM freq must not exceed 158.4MHz),
105 * ARM freq are one of below setpoints: 396MHz, 792MHz and 996MHz, since
106 * the clk APIs can NOT be called in idle thread(may cause kernel schedule
107 * as there is sleep function in PLL wait function), so here we just slow
108 * down ARM to below freq according to previous freq:
109 *
110 * run mode wait mode
111 * 396MHz -> 132MHz;
112 * 792MHz -> 158.4MHz;
113 * 996MHz -> 142.3MHz;
751f7e99 114 */
6e6cdf66
AH		 115static int imx6sl_get_arm_divider_for_wait(void)
116{
117 if (readl_relaxed(ccm_base + CCSR) & BM_CCSR_PLL1_SW_CLK_SEL) {
118 return ARM_WAIT_DIV_396M;
119 } else {
120 if ((readl_relaxed(anatop_base + PLL_ARM) &
121 BM_PLL_ARM_DIV_SELECT) == PLL_ARM_DIV_792M)
122 return ARM_WAIT_DIV_792M;
123 else
124 return ARM_WAIT_DIV_996M;
125 }
126}
127
128static void imx6sl_enable_pll_arm(bool enable)
129{
130 static u32 saved_pll_arm;
131 u32 val;
132
133 if (enable) {
134 saved_pll_arm = val = readl_relaxed(anatop_base + PLL_ARM);
135 val |= BM_PLL_ARM_ENABLE;
136 val &= ~BM_PLL_ARM_POWERDOWN;
137 writel_relaxed(val, anatop_base + PLL_ARM);
138 while (!(__raw_readl(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK))
139 ;
140 } else {
141 writel_relaxed(saved_pll_arm, anatop_base + PLL_ARM);
142 }
143}
144
751f7e99
AH		 145void imx6sl_set_wait_clk(bool enter)
146{
6e6cdf66
AH		 147 static unsigned long saved_arm_div;
148 int arm_div_for_wait = imx6sl_get_arm_divider_for_wait();
149
150 /*
151 * According to hardware design, arm podf change need
152 * PLL1 clock enabled.
153 */
154 if (arm_div_for_wait == ARM_WAIT_DIV_396M)
155 imx6sl_enable_pll_arm(true);
751f7e99
AH		 156
157 if (enter) {
6e6cdf66
AH		 158 saved_arm_div = readl_relaxed(ccm_base + CACRR);
159 writel_relaxed(arm_div_for_wait, ccm_base + CACRR);
751f7e99 160 } else {
6e6cdf66 161 writel_relaxed(saved_arm_div, ccm_base + CACRR);
751f7e99 162 }
6e6cdf66
AH		 163 while (__raw_readl(ccm_base + CDHIPR) & BM_CDHIPR_ARM_PODF_BUSY)
164 ;
165
166 if (arm_div_for_wait == ARM_WAIT_DIV_396M)
167 imx6sl_enable_pll_arm(false);
751f7e99
AH		 168}
169
53bb71da 170static void __init imx6sl_clocks_init(struct device_node *ccm_node)
45fe6810
SG		 171{
172 struct device_node *np;
173 void __iomem *base;
45fe6810 174 int i;
848db4a0 175 int ret;
45fe6810 176
45fe6810
SG		 177 clks[IMX6SL_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
178 clks[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0);
179 clks[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0);
180
181 np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop");
182 base = of_iomap(np, 0);
183 WARN_ON(!base);
6e6cdf66 184 anatop_base = base;
45fe6810
SG		 185
186 /* type name parent base div_mask */
187 clks[IMX6SL_CLK_PLL1_SYS] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f);
188 clks[IMX6SL_CLK_PLL2_BUS] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1);
189 clks[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3_usb_otg", "osc", base + 0x10, 0x3);
190 clks[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4_audio", "osc", base + 0x70, 0x7f);
191 clks[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "osc", base + 0xa0, 0x7f);
192 clks[IMX6SL_CLK_PLL6_ENET] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6_enet", "osc", base + 0xe0, 0x3);
193 clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7_usb_host", "osc", base + 0x20, 0x3);
194
195 /*
196 * usbphy1 and usbphy2 are implemented as dummy gates using reserve
197 * bit 20. They are used by phy driver to keep the refcount of
198 * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be
199 * turned on during boot, and software will not need to control it
200 * anymore after that.
201 */
202 clks[IMX6SL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20);
203 clks[IMX6SL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20);
204 clks[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6);
205 clks[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6);
206
207 /* dev name parent_name flags reg shift width div: flags, div_table lock */
208 clks[IMX6SL_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock);
238fb182 209 clks[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock);
45fe6810
SG		 210 clks[IMX6SL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock);
211 clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_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);
212 clks[IMX6SL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock);
213
214 /* name parent_name reg idx */
215 clks[IMX6SL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0", "pll2_bus", base + 0x100, 0);
216 clks[IMX6SL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus", base + 0x100, 1);
217 clks[IMX6SL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus", base + 0x100, 2);
218 clks[IMX6SL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0, 0);
219 clks[IMX6SL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0, 1);
220 clks[IMX6SL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0, 2);
221 clks[IMX6SL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0, 3);
222
223 /* name parent_name mult div */
224 clks[IMX6SL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2", 1, 2);
225 clks[IMX6SL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4);
226 clks[IMX6SL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6);
227 clks[IMX6SL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8);
228
53bb71da 229 np = ccm_node;
45fe6810
SG		 230 base = of_iomap(np, 0);
231 WARN_ON(!base);
6e6cdf66 232 ccm_base = base;
45fe6810 233
9ba64fe3
SG		 234 /* Reuse imx6q pm code */
235 imx6q_pm_set_ccm_base(base);
236
45fe6810
SG		 237 /* name reg shift width parent_names num_parents */
238 clks[IMX6SL_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels));
239 clks[IMX6SL_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels));
240 clks[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels));
241 clks[IMX6SL_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels));
242 clks[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels));
243 clks[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels));
244 clks[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
245 clks[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
bad66c3e
FE		 246 clks[IMX6SL_CLK_CSI_SEL] = imx_clk_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels));
247 clks[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels));
dfd87144
LY		 248 clks[IMX6SL_CLK_USDHC1_SEL] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
249 clks[IMX6SL_CLK_USDHC2_SEL] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
250 clks[IMX6SL_CLK_USDHC3_SEL] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
251 clks[IMX6SL_CLK_USDHC4_SEL] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup);
252 clks[IMX6SL_CLK_SSI1_SEL] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
253 clks[IMX6SL_CLK_SSI2_SEL] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
254 clks[IMX6SL_CLK_SSI3_SEL] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup);
255 clks[IMX6SL_CLK_PERCLK_SEL] = imx_clk_fixup_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels), imx_cscmr1_fixup);
e37c1ad0
FF		 256 clks[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels));
257 clks[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels));
45fe6810
SG		 258 clks[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels));
259 clks[IMX6SL_CLK_GPU2D_SEL] = imx_clk_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels));
260 clks[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels));
261 clks[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels));
262 clks[IMX6SL_CLK_SPDIF0_SEL] = imx_clk_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels));
263 clks[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels));
264 clks[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels));
265 clks[IMX6SL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels));
266 clks[IMX6SL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels));
267
268 /* name reg shift width busy: reg, shift parent_names num_parents */
269 clks[IMX6SL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels));
270 clks[IMX6SL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels));
271
272 /* name parent_name reg shift width */
273 clks[IMX6SL_CLK_OCRAM_PODF] = imx_clk_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3);
274 clks[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3);
275 clks[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3);
276 clks[IMX6SL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2);
277 clks[IMX6SL_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3);
278 clks[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3);
279 clks[IMX6SL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3);
280 clks[IMX6SL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3);
281 clks[IMX6SL_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3);
282 clks[IMX6SL_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3);
283 clks[IMX6SL_CLK_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3);
284 clks[IMX6SL_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6);
285 clks[IMX6SL_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3);
286 clks[IMX6SL_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6);
287 clks[IMX6SL_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3);
288 clks[IMX6SL_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6);
dfd87144 289 clks[IMX6SL_CLK_PERCLK] = imx_clk_fixup_divider("perclk", "perclk_sel", base + 0x1c, 0, 6, imx_cscmr1_fixup);
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SG		 290 clks[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3);
291 clks[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3);
292 clks[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3);
293 clks[IMX6SL_CLK_GPU2D_PODF] = imx_clk_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3);
294 clks[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3);
295 clks[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3);
dfd87144 296 clks[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_fixup_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3, imx_cscmr1_fixup);
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SG		 297 clks[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3);
298 clks[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3);
299 clks[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3);
300 clks[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3);
301 clks[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3);
302 clks[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3);
303 clks[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3);
304 clks[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6);
305 clks[IMX6SL_CLK_UART_ROOT] = imx_clk_divider("uart_root", "uart_sel", base + 0x24, 0, 6);
306
307 /* name parent_name reg shift width busy: reg, shift */
308 clks[IMX6SL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1);
309 clks[IMX6SL_CLK_MMDC_ROOT] = imx_clk_busy_divider("mmdc", "periph2", base + 0x14, 3, 3, base + 0x48, 2);
310 clks[IMX6SL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16);
311
312 /* name parent_name reg shift */
313 clks[IMX6SL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0);
314 clks[IMX6SL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2);
315 clks[IMX6SL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4);
316 clks[IMX6SL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6);
4ca2ad55 317 clks[IMX6SL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10);
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SG		 318 clks[IMX6SL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12);
319 clks[IMX6SL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14);
320 clks[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16);
321 clks[IMX6SL_CLK_GPT] = imx_clk_gate2("gpt", "perclk", base + 0x6c, 20);
322 clks[IMX6SL_CLK_GPT_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x6c, 22);
323 clks[IMX6SL_CLK_GPU2D_OVG] = imx_clk_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26);
324 clks[IMX6SL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6);
325 clks[IMX6SL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8);
326 clks[IMX6SL_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10);
327 clks[IMX6SL_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12);
328 clks[IMX6SL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x74, 0);
329 clks[IMX6SL_CLK_PXP_AXI] = imx_clk_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2);
330 clks[IMX6SL_CLK_EPDC_AXI] = imx_clk_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4);
331 clks[IMX6SL_CLK_LCDIF_AXI] = imx_clk_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6);
332 clks[IMX6SL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8);
333 clks[IMX6SL_CLK_EPDC_PIX] = imx_clk_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10);
334 clks[IMX6SL_CLK_OCRAM] = imx_clk_gate2("ocram", "ocram_podf", base + 0x74, 28);
335 clks[IMX6SL_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16);
336 clks[IMX6SL_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18);
337 clks[IMX6SL_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20);
338 clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22);
339 clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6);
8962a5db 340 clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
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SG		 341 clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14);
342 clks[IMX6SL_CLK_SSI1] = imx_clk_gate2("ssi1", "ssi1_podf", base + 0x7c, 18);
343 clks[IMX6SL_CLK_SSI2] = imx_clk_gate2("ssi2", "ssi2_podf", base + 0x7c, 20);
344 clks[IMX6SL_CLK_SSI3] = imx_clk_gate2("ssi3", "ssi3_podf", base + 0x7c, 22);
345 clks[IMX6SL_CLK_UART] = imx_clk_gate2("uart", "ipg", base + 0x7c, 24);
346 clks[IMX6SL_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_root", base + 0x7c, 26);
347 clks[IMX6SL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0);
348 clks[IMX6SL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2);
349 clks[IMX6SL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4);
350 clks[IMX6SL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6);
351 clks[IMX6SL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8);
352
229be9c1 353 imx_check_clocks(clks, ARRAY_SIZE(clks));
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SG		 354
355 clk_data.clks = clks;
356 clk_data.clk_num = ARRAY_SIZE(clks);
357 of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
358
848db4a0
AH		 359 /* Ensure the AHB clk is at 132MHz. */
360 ret = clk_set_rate(clks[IMX6SL_CLK_AHB], 132000000);
361 if (ret)
362 pr_warn("%s: failed to set AHB clock rate %d!\n",
363 __func__, ret);
364
17626b7c
AH		 365 /*
366 * Make sure those always on clocks are enabled to maintain the correct
367 * usecount and enabling/disabling of parent PLLs.
368 */
369 for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
370 clk_prepare_enable(clks[clks_init_on[i]]);
371
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SG		 372 if (IS_ENABLED(CONFIG_USB_MXS_PHY)) {
373 clk_prepare_enable(clks[IMX6SL_CLK_USBPHY1_GATE]);
374 clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]);
375 }
376
4390e622
NC		 377 /* Audio-related clocks configuration */
378 clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]);
379
0783a560
FE		 380 /* set PLL5 video as lcdif pix parent clock */
381 clk_set_parent(clks[IMX6SL_CLK_LCDIF_PIX_SEL],
382 clks[IMX6SL_CLK_PLL5_VIDEO_DIV]);
383
384 clk_set_parent(clks[IMX6SL_CLK_LCDIF_AXI_SEL],
385 clks[IMX6SL_CLK_PLL2_PFD2]);
386
e7c57ecd
PZ		 387 /* Set initial power mode */
388 imx6q_set_lpm(WAIT_CLOCKED);
45fe6810 389}
53bb71da 390CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init);
Linux kernel - Deliverables
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