1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright (C) 2013 ST-Ericsson AB
14 #include <linux/clk-provider.h>
74 	pr_crit("force-enabling MXTALO\n");  in nomadik_clk_reboot_handler()
84 	{ .compatible = "stericsson,nomadik-src" },
122 	if (of_property_read_bool(np, "disable-sxtalo")) {  in nomadik_src_init()
127 	if (of_property_read_bool(np, "disable-mxtalo")) {  in nomadik_src_init()
141  * struct clk_pll1 - Nomadik PLL1 clock
151  * struct clk_src - Nomadik src clock
174 	if (pll->id == 1) {  in pll_clk_enable()
179 	} else if (pll->id == 2) {  in pll_clk_enable()
194 	if (pll->id == 1) {  in pll_clk_disable()
199 	} else if (pll->id == 2) {  in pll_clk_disable()
212 	if (pll->id == 1) {  in pll_clk_is_enabled()
215 	} else if (pll->id == 2) {  in pll_clk_is_enabled()
229 	if (pll->id == 1) {  in pll_clk_recalc_rate()
231 		u8 div;  in pll_clk_recalc_rate()  local
235 		div = val & 0x07U;  in pll_clk_recalc_rate()
236 		return (parent_rate * mul) >> div;  in pll_clk_recalc_rate()
239 	if (pll->id == 2) {  in pll_clk_recalc_rate()
269 		return ERR_PTR(-EINVAL);  in pll_clk_register()
274 		return ERR_PTR(-ENOMEM);  in pll_clk_register()
280 	pll->hw.init = &init;  in pll_clk_register()
281 	pll->id = id;  in pll_clk_register()
285 	ret = clk_hw_register(dev, &pll->hw);  in pll_clk_register()
291 	return &pll->hw;  in pll_clk_register()
296  * you read-modify-write a register. Instead there are separate
306 	u32 enreg = sclk->group1 ? SRC_PCKEN1 : SRC_PCKEN0;  in src_clk_enable()
307 	u32 sreg = sclk->group1 ? SRC_PCKSR1 : SRC_PCKSR0;  in src_clk_enable()
309 	writel(sclk->clkbit, src_base + enreg);  in src_clk_enable()
311 	while (!(readl(src_base + sreg) & sclk->clkbit))  in src_clk_enable()
319 	u32 disreg = sclk->group1 ? SRC_PCKDIS1 : SRC_PCKDIS0;  in src_clk_disable()
320 	u32 sreg = sclk->group1 ? SRC_PCKSR1 : SRC_PCKSR0;  in src_clk_disable()
322 	writel(sclk->clkbit, src_base + disreg);  in src_clk_disable()
324 	while (readl(src_base + sreg) & sclk->clkbit)  in src_clk_disable()
331 	u32 sreg = sclk->group1 ? SRC_PCKSR1 : SRC_PCKSR0;  in src_clk_is_enabled()
334 	return !!(val & sclk->clkbit);  in src_clk_is_enabled()
361 		return ERR_PTR(-ENOMEM);  in src_clk_register()
365 	/* Do not force-disable the static SDRAM controller */  in src_clk_register()
372 	sclk->hw.init = &init;  in src_clk_register()
373 	sclk->id = id;  in src_clk_register()
374 	sclk->group1 = (id > 31);  in src_clk_register()
375 	sclk->clkbit = BIT(id & 0x1f);  in src_clk_register()
378 		 name, id, sclk->group1, sclk->clkbit);  in src_clk_register()
380 	ret = clk_hw_register(dev, &sclk->hw);  in src_clk_register()
386 	return &sclk->hw;  in src_clk_register()
453 	"3DCLK     ",
491 		return -ENODEV;  in nomadik_src_clk_init_debugfs()
494 	debugfs_create_file("nomadik-src-clk", S_IFREG | S_IRUGO,  in nomadik_src_clk_init_debugfs()
505 	const char *clk_name = np->name;  in of_nomadik_pll_setup()
512 	if (of_property_read_u32(np, "pll-id", &pll_id)) {  in of_nomadik_pll_setup()
513 		pr_err("%s: PLL \"%s\" missing pll-id property\n",  in of_nomadik_pll_setup()
523 	"st,nomadik-pll-clock", of_nomadik_pll_setup);
528 	const char *clk_name = np->name;  in of_nomadik_hclk_setup()
547 	"st,nomadik-hclk-clock", of_nomadik_hclk_setup);
552 	const char *clk_name = np->name;  in of_nomadik_src_clk_setup()
559 	if (of_property_read_u32(np, "clock-id", &clk_id)) {  in of_nomadik_src_clk_setup()
560 		pr_err("%s: SRC clock \"%s\" missing clock-id property\n",  in of_nomadik_src_clk_setup()
570 	"st,nomadik-src-clock", of_nomadik_src_clk_setup);