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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Hisilicon Hi3559A clock driver4 *5 * Copyright (c) 2019-2020, Huawei Tech. Co., Ltd.6 *7 * Author: Dongjiu Geng <gengdongjiu@huawei.com>8 */9 10#include <linux/clk-provider.h>11#include <linux/module.h>12#include <linux/of.h>13#include <linux/platform_device.h>14#include <linux/slab.h>15 16#include <dt-bindings/clock/hi3559av100-clock.h>17 18#include "clk.h"19#include "crg.h"20#include "reset.h"21 22#define CRG_BASE_ADDR  0x1802000023#define PLL_MASK_WIDTH 2424 25struct hi3559av100_pll_clock {26	u32	id;27	const char	*name;28	const char	*parent_name;29	const u32	ctrl_reg1;30	const u8	frac_shift;31	const u8	frac_width;32	const u8	postdiv1_shift;33	const u8	postdiv1_width;34	const u8	postdiv2_shift;35	const u8	postdiv2_width;36	const u32	ctrl_reg2;37	const u8	fbdiv_shift;38	const u8	fbdiv_width;39	const u8	refdiv_shift;40	const u8	refdiv_width;41};42 43struct hi3559av100_clk_pll {44	struct clk_hw	hw;45	u32	id;46	void __iomem	*ctrl_reg1;47	u8	frac_shift;48	u8	frac_width;49	u8	postdiv1_shift;50	u8	postdiv1_width;51	u8	postdiv2_shift;52	u8	postdiv2_width;53	void __iomem	*ctrl_reg2;54	u8	fbdiv_shift;55	u8	fbdiv_width;56	u8	refdiv_shift;57	u8	refdiv_width;58};59 60/* soc clk config */61static const struct hisi_fixed_rate_clock hi3559av100_fixed_rate_clks_crg[] = {62	{ HI3559AV100_FIXED_1188M, "1188m", NULL, 0, 1188000000, },63	{ HI3559AV100_FIXED_1000M, "1000m", NULL, 0, 1000000000, },64	{ HI3559AV100_FIXED_842M, "842m", NULL, 0, 842000000, },65	{ HI3559AV100_FIXED_792M, "792m", NULL, 0, 792000000, },66	{ HI3559AV100_FIXED_750M, "750m", NULL, 0, 750000000, },67	{ HI3559AV100_FIXED_710M, "710m", NULL, 0, 710000000, },68	{ HI3559AV100_FIXED_680M, "680m", NULL, 0, 680000000, },69	{ HI3559AV100_FIXED_667M, "667m", NULL, 0, 667000000, },70	{ HI3559AV100_FIXED_631M, "631m", NULL, 0, 631000000, },71	{ HI3559AV100_FIXED_600M, "600m", NULL, 0, 600000000, },72	{ HI3559AV100_FIXED_568M, "568m", NULL, 0, 568000000, },73	{ HI3559AV100_FIXED_500M, "500m", NULL, 0, 500000000, },74	{ HI3559AV100_FIXED_475M, "475m", NULL, 0, 475000000, },75	{ HI3559AV100_FIXED_428M, "428m", NULL, 0, 428000000, },76	{ HI3559AV100_FIXED_400M, "400m", NULL, 0, 400000000, },77	{ HI3559AV100_FIXED_396M, "396m", NULL, 0, 396000000, },78	{ HI3559AV100_FIXED_300M, "300m", NULL, 0, 300000000, },79	{ HI3559AV100_FIXED_250M, "250m", NULL, 0, 250000000, },80	{ HI3559AV100_FIXED_200M, "200m", NULL, 0, 200000000, },81	{ HI3559AV100_FIXED_198M, "198m", NULL, 0, 198000000, },82	{ HI3559AV100_FIXED_187p5M, "187p5m", NULL, 0, 187500000, },83	{ HI3559AV100_FIXED_150M, "150m", NULL, 0, 150000000, },84	{ HI3559AV100_FIXED_148p5M, "148p5m", NULL, 0, 1485000000, },85	{ HI3559AV100_FIXED_125M, "125m", NULL, 0, 125000000, },86	{ HI3559AV100_FIXED_107M, "107m", NULL, 0, 107000000, },87	{ HI3559AV100_FIXED_100M, "100m", NULL, 0, 100000000, },88	{ HI3559AV100_FIXED_99M, "99m",	NULL, 0, 99000000, },89	{ HI3559AV100_FIXED_75M, "75m", NULL, 0, 75000000, },90	{ HI3559AV100_FIXED_74p25M, "74p25m", NULL, 0, 74250000, },91	{ HI3559AV100_FIXED_72M, "72m",	NULL, 0, 72000000, },92	{ HI3559AV100_FIXED_60M, "60m",	NULL, 0, 60000000, },93	{ HI3559AV100_FIXED_54M, "54m",	NULL, 0, 54000000, },94	{ HI3559AV100_FIXED_50M, "50m",	NULL, 0, 50000000, },95	{ HI3559AV100_FIXED_49p5M, "49p5m", NULL, 0, 49500000, },96	{ HI3559AV100_FIXED_37p125M, "37p125m", NULL, 0, 37125000, },97	{ HI3559AV100_FIXED_36M, "36m",	NULL, 0, 36000000, },98	{ HI3559AV100_FIXED_32p4M, "32p4m", NULL, 0, 32400000, },99	{ HI3559AV100_FIXED_27M, "27m",	NULL, 0, 27000000, },100	{ HI3559AV100_FIXED_25M, "25m",	NULL, 0, 25000000, },101	{ HI3559AV100_FIXED_24M, "24m",	NULL, 0, 24000000, },102	{ HI3559AV100_FIXED_12M, "12m",	NULL, 0, 12000000, },103	{ HI3559AV100_FIXED_3M,	 "3m", NULL, 0, 3000000, },104	{ HI3559AV100_FIXED_1p6M, "1p6m", NULL, 0, 1600000, },105	{ HI3559AV100_FIXED_400K, "400k", NULL, 0, 400000, },106	{ HI3559AV100_FIXED_100K, "100k", NULL, 0, 100000, },107};108 109 110static const char *fmc_mux_p[] = {111	"24m", "75m", "125m", "150m", "200m", "250m", "300m", "400m"112};113 114static const char *mmc_mux_p[] = {115	"100k", "25m", "49p5m", "99m", "187p5m", "150m", "198m", "400k"116};117 118static const char *sysapb_mux_p[] = {119	"24m", "50m",120};121 122static const char *sysbus_mux_p[] = {123	"24m", "300m"124};125 126static const char *uart_mux_p[] = { "50m", "24m", "3m" };127 128static const char *a73_clksel_mux_p[] = {129	"24m", "apll", "1000m"130};131 132static const u32 fmc_mux_table[]	= { 0, 1, 2, 3, 4, 5, 6, 7 };133static const u32 mmc_mux_table[]	= { 0, 1, 2, 3, 4, 5, 6, 7 };134static const u32 sysapb_mux_table[]	= { 0, 1 };135static const u32 sysbus_mux_table[]	= { 0, 1 };136static const u32 uart_mux_table[]	= { 0, 1, 2 };137static const u32 a73_clksel_mux_table[] = { 0, 1, 2 };138 139static struct hisi_mux_clock hi3559av100_mux_clks_crg[] = {140	{141		HI3559AV100_FMC_MUX, "fmc_mux", fmc_mux_p, ARRAY_SIZE(fmc_mux_p),142		CLK_SET_RATE_PARENT, 0x170, 2, 3, 0, fmc_mux_table,143	},144	{145		HI3559AV100_MMC0_MUX, "mmc0_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),146		CLK_SET_RATE_PARENT, 0x1a8, 24, 3, 0, mmc_mux_table,147	},148	{149		HI3559AV100_MMC1_MUX, "mmc1_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),150		CLK_SET_RATE_PARENT, 0x1ec, 24, 3, 0, mmc_mux_table,151	},152 153	{154		HI3559AV100_MMC2_MUX, "mmc2_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),155		CLK_SET_RATE_PARENT, 0x214, 24, 3, 0, mmc_mux_table,156	},157 158	{159		HI3559AV100_MMC3_MUX, "mmc3_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),160		CLK_SET_RATE_PARENT, 0x23c, 24, 3, 0, mmc_mux_table,161	},162 163	{164		HI3559AV100_SYSAPB_MUX, "sysapb_mux", sysapb_mux_p, ARRAY_SIZE(sysapb_mux_p),165		CLK_SET_RATE_PARENT, 0xe8, 3, 1, 0, sysapb_mux_table166	},167 168	{169		HI3559AV100_SYSBUS_MUX, "sysbus_mux", sysbus_mux_p, ARRAY_SIZE(sysbus_mux_p),170		CLK_SET_RATE_PARENT, 0xe8, 0, 1, 0, sysbus_mux_table171	},172 173	{174		HI3559AV100_UART_MUX, "uart_mux", uart_mux_p, ARRAY_SIZE(uart_mux_p),175		CLK_SET_RATE_PARENT, 0x198, 28, 2, 0, uart_mux_table176	},177 178	{179		HI3559AV100_A73_MUX, "a73_mux", a73_clksel_mux_p, ARRAY_SIZE(a73_clksel_mux_p),180		CLK_SET_RATE_PARENT, 0xe4, 0, 2, 0, a73_clksel_mux_table181	},182};183 184static struct hisi_gate_clock hi3559av100_gate_clks[] = {185	{186		HI3559AV100_FMC_CLK, "clk_fmc", "fmc_mux",187		CLK_SET_RATE_PARENT, 0x170, 1, 0,188	},189	{190		HI3559AV100_MMC0_CLK, "clk_mmc0", "mmc0_mux",191		CLK_SET_RATE_PARENT, 0x1a8, 28, 0,192	},193	{194		HI3559AV100_MMC1_CLK, "clk_mmc1", "mmc1_mux",195		CLK_SET_RATE_PARENT, 0x1ec, 28, 0,196	},197	{198		HI3559AV100_MMC2_CLK, "clk_mmc2", "mmc2_mux",199		CLK_SET_RATE_PARENT, 0x214, 28, 0,200	},201	{202		HI3559AV100_MMC3_CLK, "clk_mmc3", "mmc3_mux",203		CLK_SET_RATE_PARENT, 0x23c, 28, 0,204	},205	{206		HI3559AV100_UART0_CLK, "clk_uart0", "uart_mux",207		CLK_SET_RATE_PARENT, 0x198, 23, 0,208	},209	{210		HI3559AV100_UART1_CLK, "clk_uart1", "uart_mux",211		CLK_SET_RATE_PARENT, 0x198, 24, 0,212	},213	{214		HI3559AV100_UART2_CLK, "clk_uart2", "uart_mux",215		CLK_SET_RATE_PARENT, 0x198, 25, 0,216	},217	{218		HI3559AV100_UART3_CLK, "clk_uart3", "uart_mux",219		CLK_SET_RATE_PARENT, 0x198, 26, 0,220	},221	{222		HI3559AV100_UART4_CLK, "clk_uart4", "uart_mux",223		CLK_SET_RATE_PARENT, 0x198, 27, 0,224	},225	{226		HI3559AV100_ETH_CLK, "clk_eth", NULL,227		CLK_SET_RATE_PARENT, 0x0174, 1, 0,228	},229	{230		HI3559AV100_ETH_MACIF_CLK, "clk_eth_macif", NULL,231		CLK_SET_RATE_PARENT, 0x0174, 5, 0,232	},233	{234		HI3559AV100_ETH1_CLK, "clk_eth1", NULL,235		CLK_SET_RATE_PARENT, 0x0174, 3, 0,236	},237	{238		HI3559AV100_ETH1_MACIF_CLK, "clk_eth1_macif", NULL,239		CLK_SET_RATE_PARENT, 0x0174, 7, 0,240	},241	{242		HI3559AV100_I2C0_CLK, "clk_i2c0", "50m",243		CLK_SET_RATE_PARENT, 0x01a0, 16, 0,244	},245	{246		HI3559AV100_I2C1_CLK, "clk_i2c1", "50m",247		CLK_SET_RATE_PARENT, 0x01a0, 17, 0,248	},249	{250		HI3559AV100_I2C2_CLK, "clk_i2c2", "50m",251		CLK_SET_RATE_PARENT, 0x01a0, 18, 0,252	},253	{254		HI3559AV100_I2C3_CLK, "clk_i2c3", "50m",255		CLK_SET_RATE_PARENT, 0x01a0, 19, 0,256	},257	{258		HI3559AV100_I2C4_CLK, "clk_i2c4", "50m",259		CLK_SET_RATE_PARENT, 0x01a0, 20, 0,260	},261	{262		HI3559AV100_I2C5_CLK, "clk_i2c5", "50m",263		CLK_SET_RATE_PARENT, 0x01a0, 21, 0,264	},265	{266		HI3559AV100_I2C6_CLK, "clk_i2c6", "50m",267		CLK_SET_RATE_PARENT, 0x01a0, 22, 0,268	},269	{270		HI3559AV100_I2C7_CLK, "clk_i2c7", "50m",271		CLK_SET_RATE_PARENT, 0x01a0, 23, 0,272	},273	{274		HI3559AV100_I2C8_CLK, "clk_i2c8", "50m",275		CLK_SET_RATE_PARENT, 0x01a0, 24, 0,276	},277	{278		HI3559AV100_I2C9_CLK, "clk_i2c9", "50m",279		CLK_SET_RATE_PARENT, 0x01a0, 25, 0,280	},281	{282		HI3559AV100_I2C10_CLK, "clk_i2c10", "50m",283		CLK_SET_RATE_PARENT, 0x01a0, 26, 0,284	},285	{286		HI3559AV100_I2C11_CLK, "clk_i2c11", "50m",287		CLK_SET_RATE_PARENT, 0x01a0, 27, 0,288	},289	{290		HI3559AV100_SPI0_CLK, "clk_spi0", "100m",291		CLK_SET_RATE_PARENT, 0x0198, 16, 0,292	},293	{294		HI3559AV100_SPI1_CLK, "clk_spi1", "100m",295		CLK_SET_RATE_PARENT, 0x0198, 17, 0,296	},297	{298		HI3559AV100_SPI2_CLK, "clk_spi2", "100m",299		CLK_SET_RATE_PARENT, 0x0198, 18, 0,300	},301	{302		HI3559AV100_SPI3_CLK, "clk_spi3", "100m",303		CLK_SET_RATE_PARENT, 0x0198, 19, 0,304	},305	{306		HI3559AV100_SPI4_CLK, "clk_spi4", "100m",307		CLK_SET_RATE_PARENT, 0x0198, 20, 0,308	},309	{310		HI3559AV100_SPI5_CLK, "clk_spi5", "100m",311		CLK_SET_RATE_PARENT, 0x0198, 21, 0,312	},313	{314		HI3559AV100_SPI6_CLK, "clk_spi6", "100m",315		CLK_SET_RATE_PARENT, 0x0198, 22, 0,316	},317	{318		HI3559AV100_EDMAC_AXICLK, "axi_clk_edmac", NULL,319		CLK_SET_RATE_PARENT, 0x16c, 6, 0,320	},321	{322		HI3559AV100_EDMAC_CLK, "clk_edmac", NULL,323		CLK_SET_RATE_PARENT, 0x16c, 5, 0,324	},325	{326		HI3559AV100_EDMAC1_AXICLK, "axi_clk_edmac1", NULL,327		CLK_SET_RATE_PARENT, 0x16c, 9, 0,328	},329	{330		HI3559AV100_EDMAC1_CLK, "clk_edmac1", NULL,331		CLK_SET_RATE_PARENT, 0x16c, 8, 0,332	},333	{334		HI3559AV100_VDMAC_CLK, "clk_vdmac", NULL,335		CLK_SET_RATE_PARENT, 0x14c, 5, 0,336	},337};338 339static struct hi3559av100_pll_clock hi3559av100_pll_clks[] = {340	{341		HI3559AV100_APLL_CLK, "apll", NULL, 0x0, 0, 24, 24, 3, 28, 3,342		0x4, 0, 12, 12, 6343	},344	{345		HI3559AV100_GPLL_CLK, "gpll", NULL, 0x20, 0, 24, 24, 3, 28, 3,346		0x24, 0, 12, 12, 6347	},348};349 350#define to_pll_clk(_hw) container_of(_hw, struct hi3559av100_clk_pll, hw)351static void hi3559av100_calc_pll(u32 *frac_val, u32 *postdiv1_val,352				 u32 *postdiv2_val,353				 u32 *fbdiv_val, u32 *refdiv_val, u64 rate)354{355	u64 rem;356 357	*postdiv1_val = 2;358	*postdiv2_val = 1;359 360	rate = rate * ((*postdiv1_val) * (*postdiv2_val));361 362	*frac_val = 0;363	rem = do_div(rate, 1000000);364	rem = do_div(rate, PLL_MASK_WIDTH);365	*fbdiv_val = rate;366	*refdiv_val = 1;367	rem = rem * (1 << PLL_MASK_WIDTH);368	do_div(rem, PLL_MASK_WIDTH);369	*frac_val = rem;370}371 372static int clk_pll_set_rate(struct clk_hw *hw,373			    unsigned long rate,374			    unsigned long parent_rate)375{376	struct hi3559av100_clk_pll *clk = to_pll_clk(hw);377	u32 frac_val, postdiv1_val, postdiv2_val, fbdiv_val, refdiv_val;378	u32 val;379 380	postdiv1_val = postdiv2_val = 0;381 382	hi3559av100_calc_pll(&frac_val, &postdiv1_val, &postdiv2_val,383			     &fbdiv_val, &refdiv_val, (u64)rate);384 385	val = readl_relaxed(clk->ctrl_reg1);386	val &= ~(((1 << clk->frac_width) - 1) << clk->frac_shift);387	val &= ~(((1 << clk->postdiv1_width) - 1) << clk->postdiv1_shift);388	val &= ~(((1 << clk->postdiv2_width) - 1) << clk->postdiv2_shift);389 390	val |= frac_val << clk->frac_shift;391	val |= postdiv1_val << clk->postdiv1_shift;392	val |= postdiv2_val << clk->postdiv2_shift;393	writel_relaxed(val, clk->ctrl_reg1);394 395	val = readl_relaxed(clk->ctrl_reg2);396	val &= ~(((1 << clk->fbdiv_width) - 1) << clk->fbdiv_shift);397	val &= ~(((1 << clk->refdiv_width) - 1) << clk->refdiv_shift);398 399	val |= fbdiv_val << clk->fbdiv_shift;400	val |= refdiv_val << clk->refdiv_shift;401	writel_relaxed(val, clk->ctrl_reg2);402 403	return 0;404}405 406static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,407		unsigned long parent_rate)408{409	struct hi3559av100_clk_pll *clk = to_pll_clk(hw);410	u64 frac_val, fbdiv_val;411	u32 postdiv1_val, postdiv2_val;412	u32 val;413	u64 tmp, rate;414 415	val = readl_relaxed(clk->ctrl_reg1);416	val = val >> clk->frac_shift;417	val &= ((1 << clk->frac_width) - 1);418	frac_val = val;419 420	val = readl_relaxed(clk->ctrl_reg1);421	val = val >> clk->postdiv1_shift;422	val &= ((1 << clk->postdiv1_width) - 1);423	postdiv1_val = val;424 425	val = readl_relaxed(clk->ctrl_reg1);426	val = val >> clk->postdiv2_shift;427	val &= ((1 << clk->postdiv2_width) - 1);428	postdiv2_val = val;429 430	val = readl_relaxed(clk->ctrl_reg2);431	val = val >> clk->fbdiv_shift;432	val &= ((1 << clk->fbdiv_width) - 1);433	fbdiv_val = val;434 435	val = readl_relaxed(clk->ctrl_reg2);436	val = val >> clk->refdiv_shift;437	val &= ((1 << clk->refdiv_width) - 1);438 439	/* rate = 24000000 * (fbdiv + frac / (1<<24) ) / refdiv  */440	rate = 0;441	tmp = 24000000 * fbdiv_val + (24000000 * frac_val) / (1 << 24);442	rate += tmp;443	rate = div_u64(rate, val);444	rate = div_u64(rate, postdiv1_val * postdiv2_val);445 446	return rate;447}448 449static const struct clk_ops hisi_clk_pll_ops = {450	.set_rate = clk_pll_set_rate,451	.recalc_rate = clk_pll_recalc_rate,452};453 454static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,455			   int nums, struct hisi_clock_data *data, struct device *dev)456{457	void __iomem *base = data->base;458	struct hi3559av100_clk_pll *p_clk = NULL;459	struct clk *clk = NULL;460	struct clk_init_data init;461	int i;462 463	p_clk = devm_kcalloc(dev, nums, sizeof(*p_clk), GFP_KERNEL);464	if (!p_clk)465		return;466 467	for (i = 0; i < nums; i++) {468		init.name = clks[i].name;469		init.flags = 0;470		init.parent_names =471			(clks[i].parent_name ? &clks[i].parent_name : NULL);472		init.num_parents = (clks[i].parent_name ? 1 : 0);473		init.ops = &hisi_clk_pll_ops;474 475		p_clk->ctrl_reg1 = base + clks[i].ctrl_reg1;476		p_clk->frac_shift = clks[i].frac_shift;477		p_clk->frac_width = clks[i].frac_width;478		p_clk->postdiv1_shift = clks[i].postdiv1_shift;479		p_clk->postdiv1_width = clks[i].postdiv1_width;480		p_clk->postdiv2_shift = clks[i].postdiv2_shift;481		p_clk->postdiv2_width = clks[i].postdiv2_width;482 483		p_clk->ctrl_reg2 = base + clks[i].ctrl_reg2;484		p_clk->fbdiv_shift = clks[i].fbdiv_shift;485		p_clk->fbdiv_width = clks[i].fbdiv_width;486		p_clk->refdiv_shift = clks[i].refdiv_shift;487		p_clk->refdiv_width = clks[i].refdiv_width;488		p_clk->hw.init = &init;489 490		clk = clk_register(NULL, &p_clk->hw);491		if (IS_ERR(clk)) {492			dev_err(dev, "%s: failed to register clock %s\n",493			       __func__, clks[i].name);494			continue;495		}496 497		data->clk_data.clks[clks[i].id] = clk;498		p_clk++;499	}500}501 502static struct hisi_clock_data *hi3559av100_clk_register(503	struct platform_device *pdev)504{505	struct hisi_clock_data *clk_data;506	int ret;507 508	clk_data = hisi_clk_alloc(pdev, HI3559AV100_CRG_NR_CLKS);509	if (!clk_data)510		return ERR_PTR(-ENOMEM);511 512	ret = hisi_clk_register_fixed_rate(hi3559av100_fixed_rate_clks_crg,513					   ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);514	if (ret)515		return ERR_PTR(ret);516 517	hisi_clk_register_pll(hi3559av100_pll_clks,518			      ARRAY_SIZE(hi3559av100_pll_clks), clk_data, &pdev->dev);519 520	ret = hisi_clk_register_mux(hi3559av100_mux_clks_crg,521				    ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);522	if (ret)523		goto unregister_fixed_rate;524 525	ret = hisi_clk_register_gate(hi3559av100_gate_clks,526				     ARRAY_SIZE(hi3559av100_gate_clks), clk_data);527	if (ret)528		goto unregister_mux;529 530	ret = of_clk_add_provider(pdev->dev.of_node,531				  of_clk_src_onecell_get, &clk_data->clk_data);532	if (ret)533		goto unregister_gate;534 535	return clk_data;536 537unregister_gate:538	hisi_clk_unregister_gate(hi3559av100_gate_clks,539				 ARRAY_SIZE(hi3559av100_gate_clks), clk_data);540unregister_mux:541	hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,542				ARRAY_SIZE(hi3559av100_mux_clks_crg), clk_data);543unregister_fixed_rate:544	hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,545				       ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), clk_data);546	return ERR_PTR(ret);547}548 549static void hi3559av100_clk_unregister(struct platform_device *pdev)550{551	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);552 553	of_clk_del_provider(pdev->dev.of_node);554 555	hisi_clk_unregister_gate(hi3559av100_gate_clks,556				 ARRAY_SIZE(hi3559av100_gate_clks), crg->clk_data);557	hisi_clk_unregister_mux(hi3559av100_mux_clks_crg,558				ARRAY_SIZE(hi3559av100_mux_clks_crg), crg->clk_data);559	hisi_clk_unregister_fixed_rate(hi3559av100_fixed_rate_clks_crg,560				       ARRAY_SIZE(hi3559av100_fixed_rate_clks_crg), crg->clk_data);561}562 563static const struct hisi_crg_funcs hi3559av100_crg_funcs = {564	.register_clks = hi3559av100_clk_register,565	.unregister_clks = hi3559av100_clk_unregister,566};567 568static struct hisi_fixed_rate_clock hi3559av100_shub_fixed_rate_clks[] = {569	{ HI3559AV100_SHUB_SOURCE_SOC_24M, "clk_source_24M", NULL, 0, 24000000UL, },570	{ HI3559AV100_SHUB_SOURCE_SOC_200M, "clk_source_200M", NULL, 0, 200000000UL, },571	{ HI3559AV100_SHUB_SOURCE_SOC_300M, "clk_source_300M", NULL, 0, 300000000UL, },572	{ HI3559AV100_SHUB_SOURCE_PLL, "clk_source_PLL", NULL, 0, 192000000UL, },573	{ HI3559AV100_SHUB_I2C0_CLK, "clk_shub_i2c0", NULL, 0, 48000000UL, },574	{ HI3559AV100_SHUB_I2C1_CLK, "clk_shub_i2c1", NULL, 0, 48000000UL, },575	{ HI3559AV100_SHUB_I2C2_CLK, "clk_shub_i2c2", NULL, 0, 48000000UL, },576	{ HI3559AV100_SHUB_I2C3_CLK, "clk_shub_i2c3", NULL, 0, 48000000UL, },577	{ HI3559AV100_SHUB_I2C4_CLK, "clk_shub_i2c4", NULL, 0, 48000000UL, },578	{ HI3559AV100_SHUB_I2C5_CLK, "clk_shub_i2c5", NULL, 0, 48000000UL, },579	{ HI3559AV100_SHUB_I2C6_CLK, "clk_shub_i2c6", NULL, 0, 48000000UL, },580	{ HI3559AV100_SHUB_I2C7_CLK, "clk_shub_i2c7", NULL, 0, 48000000UL, },581	{ HI3559AV100_SHUB_UART_CLK_32K, "clk_uart_32K", NULL, 0, 32000UL, },582};583 584/* shub mux clk */585static u32 shub_source_clk_mux_table[] = {0, 1, 2, 3};586static const char *shub_source_clk_mux_p[] = {587	"clk_source_24M", "clk_source_200M", "clk_source_300M", "clk_source_PLL"588};589 590static u32 shub_uart_source_clk_mux_table[] = {0, 1, 2, 3};591static const char *shub_uart_source_clk_mux_p[] = {592	"clk_uart_32K", "clk_uart_div_clk", "clk_uart_div_clk", "clk_source_24M"593};594 595static struct hisi_mux_clock hi3559av100_shub_mux_clks[] = {596	{597		HI3559AV100_SHUB_SOURCE_CLK, "shub_clk", shub_source_clk_mux_p,598		ARRAY_SIZE(shub_source_clk_mux_p),599		0, 0x0, 0, 2, 0, shub_source_clk_mux_table,600	},601 602	{603		HI3559AV100_SHUB_UART_SOURCE_CLK, "shub_uart_source_clk",604		shub_uart_source_clk_mux_p, ARRAY_SIZE(shub_uart_source_clk_mux_p),605		0, 0x1c, 28, 2, 0, shub_uart_source_clk_mux_table,606	},607};608 609 610/* shub div clk */611static struct clk_div_table shub_spi_clk_table[] = {{0, 8}, {1, 4}, {2, 2}, {/*sentinel*/}};612static struct clk_div_table shub_uart_div_clk_table[] = {{1, 8}, {2, 4}, {/*sentinel*/}};613 614static struct hisi_divider_clock hi3559av100_shub_div_clks[] = {615	{ HI3559AV100_SHUB_SPI_SOURCE_CLK, "clk_spi_clk", "shub_clk", 0, 0x20, 24, 2,616	  CLK_DIVIDER_ALLOW_ZERO, shub_spi_clk_table,617	},618	{ HI3559AV100_SHUB_UART_DIV_CLK, "clk_uart_div_clk", "shub_clk", 0, 0x1c, 28, 2,619	  CLK_DIVIDER_ALLOW_ZERO, shub_uart_div_clk_table,620	},621};622 623/* shub gate clk */624static struct hisi_gate_clock hi3559av100_shub_gate_clks[] = {625	{626		HI3559AV100_SHUB_SPI0_CLK, "clk_shub_spi0", "clk_spi_clk",627		0, 0x20, 1, 0,628	},629	{630		HI3559AV100_SHUB_SPI1_CLK, "clk_shub_spi1", "clk_spi_clk",631		0, 0x20, 5, 0,632	},633	{634		HI3559AV100_SHUB_SPI2_CLK, "clk_shub_spi2", "clk_spi_clk",635		0, 0x20, 9, 0,636	},637 638	{639		HI3559AV100_SHUB_UART0_CLK, "clk_shub_uart0", "shub_uart_source_clk",640		0, 0x1c, 1, 0,641	},642	{643		HI3559AV100_SHUB_UART1_CLK, "clk_shub_uart1", "shub_uart_source_clk",644		0, 0x1c, 5, 0,645	},646	{647		HI3559AV100_SHUB_UART2_CLK, "clk_shub_uart2", "shub_uart_source_clk",648		0, 0x1c, 9, 0,649	},650	{651		HI3559AV100_SHUB_UART3_CLK, "clk_shub_uart3", "shub_uart_source_clk",652		0, 0x1c, 13, 0,653	},654	{655		HI3559AV100_SHUB_UART4_CLK, "clk_shub_uart4", "shub_uart_source_clk",656		0, 0x1c, 17, 0,657	},658	{659		HI3559AV100_SHUB_UART5_CLK, "clk_shub_uart5", "shub_uart_source_clk",660		0, 0x1c, 21, 0,661	},662	{663		HI3559AV100_SHUB_UART6_CLK, "clk_shub_uart6", "shub_uart_source_clk",664		0, 0x1c, 25, 0,665	},666 667	{668		HI3559AV100_SHUB_EDMAC_CLK, "clk_shub_dmac", "shub_clk",669		0, 0x24, 4, 0,670	},671};672 673static int hi3559av100_shub_default_clk_set(void)674{675	void __iomem *crg_base;676	unsigned int val;677 678	crg_base = ioremap(CRG_BASE_ADDR, SZ_4K);679 680	/* SSP: 192M/2 */681	val = readl_relaxed(crg_base + 0x20);682	val |= (0x2 << 24);683	writel_relaxed(val, crg_base + 0x20);684 685	/* UART: 192M/8 */686	val = readl_relaxed(crg_base + 0x1C);687	val |= (0x1 << 28);688	writel_relaxed(val, crg_base + 0x1C);689 690	iounmap(crg_base);691	crg_base = NULL;692 693	return 0;694}695 696static struct hisi_clock_data *hi3559av100_shub_clk_register(697	struct platform_device *pdev)698{699	struct hisi_clock_data *clk_data = NULL;700	int ret;701 702	hi3559av100_shub_default_clk_set();703 704	clk_data = hisi_clk_alloc(pdev, HI3559AV100_SHUB_NR_CLKS);705	if (!clk_data)706		return ERR_PTR(-ENOMEM);707 708	ret = hisi_clk_register_fixed_rate(hi3559av100_shub_fixed_rate_clks,709					   ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);710	if (ret)711		return ERR_PTR(ret);712 713	ret = hisi_clk_register_mux(hi3559av100_shub_mux_clks,714				    ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);715	if (ret)716		goto unregister_fixed_rate;717 718	ret = hisi_clk_register_divider(hi3559av100_shub_div_clks,719					ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);720	if (ret)721		goto unregister_mux;722 723	ret = hisi_clk_register_gate(hi3559av100_shub_gate_clks,724				     ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);725	if (ret)726		goto unregister_factor;727 728	ret = of_clk_add_provider(pdev->dev.of_node,729				  of_clk_src_onecell_get, &clk_data->clk_data);730	if (ret)731		goto unregister_gate;732 733	return clk_data;734 735unregister_gate:736	hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,737				 ARRAY_SIZE(hi3559av100_shub_gate_clks), clk_data);738unregister_factor:739	hisi_clk_unregister_divider(hi3559av100_shub_div_clks,740				    ARRAY_SIZE(hi3559av100_shub_div_clks), clk_data);741unregister_mux:742	hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,743				ARRAY_SIZE(hi3559av100_shub_mux_clks), clk_data);744unregister_fixed_rate:745	hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,746				       ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), clk_data);747	return ERR_PTR(ret);748}749 750static void hi3559av100_shub_clk_unregister(struct platform_device *pdev)751{752	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);753 754	of_clk_del_provider(pdev->dev.of_node);755 756	hisi_clk_unregister_gate(hi3559av100_shub_gate_clks,757				 ARRAY_SIZE(hi3559av100_shub_gate_clks), crg->clk_data);758	hisi_clk_unregister_divider(hi3559av100_shub_div_clks,759				    ARRAY_SIZE(hi3559av100_shub_div_clks), crg->clk_data);760	hisi_clk_unregister_mux(hi3559av100_shub_mux_clks,761				ARRAY_SIZE(hi3559av100_shub_mux_clks), crg->clk_data);762	hisi_clk_unregister_fixed_rate(hi3559av100_shub_fixed_rate_clks,763				       ARRAY_SIZE(hi3559av100_shub_fixed_rate_clks), crg->clk_data);764}765 766static const struct hisi_crg_funcs hi3559av100_shub_crg_funcs = {767	.register_clks = hi3559av100_shub_clk_register,768	.unregister_clks = hi3559av100_shub_clk_unregister,769};770 771static const struct of_device_id hi3559av100_crg_match_table[] = {772	{773		.compatible = "hisilicon,hi3559av100-clock",774		.data = &hi3559av100_crg_funcs775	},776	{777		.compatible = "hisilicon,hi3559av100-shub-clock",778		.data = &hi3559av100_shub_crg_funcs779	},780	{ }781};782MODULE_DEVICE_TABLE(of, hi3559av100_crg_match_table);783 784static int hi3559av100_crg_probe(struct platform_device *pdev)785{786	struct hisi_crg_dev *crg;787 788	crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL);789	if (!crg)790		return -ENOMEM;791 792	crg->funcs = of_device_get_match_data(&pdev->dev);793	if (!crg->funcs)794		return -ENOENT;795 796	crg->rstc = hisi_reset_init(pdev);797	if (!crg->rstc)798		return -ENOMEM;799 800	crg->clk_data = crg->funcs->register_clks(pdev);801	if (IS_ERR(crg->clk_data)) {802		hisi_reset_exit(crg->rstc);803		return PTR_ERR(crg->clk_data);804	}805 806	platform_set_drvdata(pdev, crg);807	return 0;808}809 810static void hi3559av100_crg_remove(struct platform_device *pdev)811{812	struct hisi_crg_dev *crg = platform_get_drvdata(pdev);813 814	hisi_reset_exit(crg->rstc);815	crg->funcs->unregister_clks(pdev);816}817 818static struct platform_driver hi3559av100_crg_driver = {819	.probe		= hi3559av100_crg_probe,820	.remove		= hi3559av100_crg_remove,821	.driver		= {822		.name	= "hi3559av100-clock",823		.of_match_table = hi3559av100_crg_match_table,824	},825};826 827static int __init hi3559av100_crg_init(void)828{829	return platform_driver_register(&hi3559av100_crg_driver);830}831core_initcall(hi3559av100_crg_init);832 833static void __exit hi3559av100_crg_exit(void)834{835	platform_driver_unregister(&hi3559av100_crg_driver);836}837module_exit(hi3559av100_crg_exit);838 839 840MODULE_DESCRIPTION("HiSilicon Hi3559AV100 CRG Driver");841