mirror of
				git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
				synced 2025-09-04 20:19:47 +08:00 
			
		
		
		
	 1436ec309e
			
		
	
	
		1436ec309e
		
	
	
	
	
		
			
			Get pll_cmnlc and pll_cmnlc1 optional clocks and enable them. This will enable REFRCV/1 in case the pll_cmnlc/1 takes input from REFRCV/1 respectively. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Swapnil Jakhade <sjakhade@cadence.com> Link: https://lore.kernel.org/r/20210319124128.13308-14-kishon@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
		
			
				
	
	
		
			1175 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1175 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
 | |
| /*
 | |
|  * Cadence Sierra PHY Driver
 | |
|  *
 | |
|  * Copyright (c) 2018 Cadence Design Systems
 | |
|  * Author: Alan Douglas <adouglas@cadence.com>
 | |
|  *
 | |
|  */
 | |
| #include <linux/clk.h>
 | |
| #include <linux/clk-provider.h>
 | |
| #include <linux/delay.h>
 | |
| #include <linux/err.h>
 | |
| #include <linux/io.h>
 | |
| #include <linux/module.h>
 | |
| #include <linux/phy/phy.h>
 | |
| #include <linux/platform_device.h>
 | |
| #include <linux/pm_runtime.h>
 | |
| #include <linux/regmap.h>
 | |
| #include <linux/reset.h>
 | |
| #include <linux/slab.h>
 | |
| #include <linux/of.h>
 | |
| #include <linux/of_platform.h>
 | |
| #include <dt-bindings/phy/phy.h>
 | |
| #include <dt-bindings/phy/phy-cadence.h>
 | |
| 
 | |
| /* PHY register offsets */
 | |
| #define SIERRA_COMMON_CDB_OFFSET			0x0
 | |
| #define SIERRA_MACRO_ID_REG				0x0
 | |
| #define SIERRA_CMN_PLLLC_GEN_PREG			0x42
 | |
| #define SIERRA_CMN_PLLLC_MODE_PREG			0x48
 | |
| #define SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG		0x49
 | |
| #define SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG		0x4A
 | |
| #define SIERRA_CMN_PLLLC_LOCK_CNTSTART_PREG		0x4B
 | |
| #define SIERRA_CMN_PLLLC_BWCAL_MODE1_PREG		0x4F
 | |
| #define SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG		0x50
 | |
| #define SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG	0x62
 | |
| #define SIERRA_CMN_REFRCV_PREG				0x98
 | |
| #define SIERRA_CMN_REFRCV1_PREG				0xB8
 | |
| #define SIERRA_CMN_PLLLC1_GEN_PREG			0xC2
 | |
| 
 | |
| #define SIERRA_LANE_CDB_OFFSET(ln, block_offset, reg_offset)	\
 | |
| 				((0x4000 << (block_offset)) + \
 | |
| 				 (((ln) << 9) << (reg_offset)))
 | |
| 
 | |
| #define SIERRA_DET_STANDEC_A_PREG			0x000
 | |
| #define SIERRA_DET_STANDEC_B_PREG			0x001
 | |
| #define SIERRA_DET_STANDEC_C_PREG			0x002
 | |
| #define SIERRA_DET_STANDEC_D_PREG			0x003
 | |
| #define SIERRA_DET_STANDEC_E_PREG			0x004
 | |
| #define SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG		0x008
 | |
| #define SIERRA_PSM_A0IN_TMR_PREG			0x009
 | |
| #define SIERRA_PSM_DIAG_PREG				0x015
 | |
| #define SIERRA_PSC_TX_A0_PREG				0x028
 | |
| #define SIERRA_PSC_TX_A1_PREG				0x029
 | |
| #define SIERRA_PSC_TX_A2_PREG				0x02A
 | |
| #define SIERRA_PSC_TX_A3_PREG				0x02B
 | |
| #define SIERRA_PSC_RX_A0_PREG				0x030
 | |
| #define SIERRA_PSC_RX_A1_PREG				0x031
 | |
| #define SIERRA_PSC_RX_A2_PREG				0x032
 | |
| #define SIERRA_PSC_RX_A3_PREG				0x033
 | |
| #define SIERRA_PLLCTRL_SUBRATE_PREG			0x03A
 | |
| #define SIERRA_PLLCTRL_GEN_D_PREG			0x03E
 | |
| #define SIERRA_PLLCTRL_CPGAIN_MODE_PREG			0x03F
 | |
| #define SIERRA_PLLCTRL_STATUS_PREG			0x044
 | |
| #define SIERRA_CLKPATH_BIASTRIM_PREG			0x04B
 | |
| #define SIERRA_DFE_BIASTRIM_PREG			0x04C
 | |
| #define SIERRA_DRVCTRL_ATTEN_PREG			0x06A
 | |
| #define SIERRA_CLKPATHCTRL_TMR_PREG			0x081
 | |
| #define SIERRA_RX_CREQ_FLTR_A_MODE3_PREG		0x085
 | |
| #define SIERRA_RX_CREQ_FLTR_A_MODE2_PREG		0x086
 | |
| #define SIERRA_RX_CREQ_FLTR_A_MODE1_PREG		0x087
 | |
| #define SIERRA_RX_CREQ_FLTR_A_MODE0_PREG		0x088
 | |
| #define SIERRA_CREQ_CCLKDET_MODE01_PREG			0x08E
 | |
| #define SIERRA_RX_CTLE_MAINTENANCE_PREG			0x091
 | |
| #define SIERRA_CREQ_FSMCLK_SEL_PREG			0x092
 | |
| #define SIERRA_CREQ_EQ_CTRL_PREG			0x093
 | |
| #define SIERRA_CREQ_SPARE_PREG				0x096
 | |
| #define SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG		0x097
 | |
| #define SIERRA_CTLELUT_CTRL_PREG			0x098
 | |
| #define SIERRA_DFE_ECMP_RATESEL_PREG			0x0C0
 | |
| #define SIERRA_DFE_SMP_RATESEL_PREG			0x0C1
 | |
| #define SIERRA_DEQ_PHALIGN_CTRL				0x0C4
 | |
| #define SIERRA_DEQ_CONCUR_CTRL1_PREG			0x0C8
 | |
| #define SIERRA_DEQ_CONCUR_CTRL2_PREG			0x0C9
 | |
| #define SIERRA_DEQ_EPIPWR_CTRL2_PREG			0x0CD
 | |
| #define SIERRA_DEQ_FAST_MAINT_CYCLES_PREG		0x0CE
 | |
| #define SIERRA_DEQ_ERRCMP_CTRL_PREG			0x0D0
 | |
| #define SIERRA_DEQ_OFFSET_CTRL_PREG			0x0D8
 | |
| #define SIERRA_DEQ_GAIN_CTRL_PREG			0x0E0
 | |
| #define SIERRA_DEQ_VGATUNE_CTRL_PREG			0x0E1
 | |
| #define SIERRA_DEQ_GLUT0				0x0E8
 | |
| #define SIERRA_DEQ_GLUT1				0x0E9
 | |
| #define SIERRA_DEQ_GLUT2				0x0EA
 | |
| #define SIERRA_DEQ_GLUT3				0x0EB
 | |
| #define SIERRA_DEQ_GLUT4				0x0EC
 | |
| #define SIERRA_DEQ_GLUT5				0x0ED
 | |
| #define SIERRA_DEQ_GLUT6				0x0EE
 | |
| #define SIERRA_DEQ_GLUT7				0x0EF
 | |
| #define SIERRA_DEQ_GLUT8				0x0F0
 | |
| #define SIERRA_DEQ_GLUT9				0x0F1
 | |
| #define SIERRA_DEQ_GLUT10				0x0F2
 | |
| #define SIERRA_DEQ_GLUT11				0x0F3
 | |
| #define SIERRA_DEQ_GLUT12				0x0F4
 | |
| #define SIERRA_DEQ_GLUT13				0x0F5
 | |
| #define SIERRA_DEQ_GLUT14				0x0F6
 | |
| #define SIERRA_DEQ_GLUT15				0x0F7
 | |
| #define SIERRA_DEQ_GLUT16				0x0F8
 | |
| #define SIERRA_DEQ_ALUT0				0x108
 | |
| #define SIERRA_DEQ_ALUT1				0x109
 | |
| #define SIERRA_DEQ_ALUT2				0x10A
 | |
| #define SIERRA_DEQ_ALUT3				0x10B
 | |
| #define SIERRA_DEQ_ALUT4				0x10C
 | |
| #define SIERRA_DEQ_ALUT5				0x10D
 | |
| #define SIERRA_DEQ_ALUT6				0x10E
 | |
| #define SIERRA_DEQ_ALUT7				0x10F
 | |
| #define SIERRA_DEQ_ALUT8				0x110
 | |
| #define SIERRA_DEQ_ALUT9				0x111
 | |
| #define SIERRA_DEQ_ALUT10				0x112
 | |
| #define SIERRA_DEQ_ALUT11				0x113
 | |
| #define SIERRA_DEQ_ALUT12				0x114
 | |
| #define SIERRA_DEQ_ALUT13				0x115
 | |
| #define SIERRA_DEQ_DFETAP_CTRL_PREG			0x128
 | |
| #define SIERRA_DFE_EN_1010_IGNORE_PREG			0x134
 | |
| #define SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG		0x150
 | |
| #define SIERRA_DEQ_TAU_CTRL2_PREG			0x151
 | |
| #define SIERRA_DEQ_PICTRL_PREG				0x161
 | |
| #define SIERRA_CPICAL_TMRVAL_MODE1_PREG			0x170
 | |
| #define SIERRA_CPICAL_TMRVAL_MODE0_PREG			0x171
 | |
| #define SIERRA_CPICAL_PICNT_MODE1_PREG			0x174
 | |
| #define SIERRA_CPI_OUTBUF_RATESEL_PREG			0x17C
 | |
| #define SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG		0x183
 | |
| #define SIERRA_LFPSDET_SUPPORT_PREG			0x188
 | |
| #define SIERRA_LFPSFILT_NS_PREG				0x18A
 | |
| #define SIERRA_LFPSFILT_RD_PREG				0x18B
 | |
| #define SIERRA_LFPSFILT_MP_PREG				0x18C
 | |
| #define SIERRA_SIGDET_SUPPORT_PREG			0x190
 | |
| #define SIERRA_SDFILT_H2L_A_PREG			0x191
 | |
| #define SIERRA_SDFILT_L2H_PREG				0x193
 | |
| #define SIERRA_RXBUFFER_CTLECTRL_PREG			0x19E
 | |
| #define SIERRA_RXBUFFER_RCDFECTRL_PREG			0x19F
 | |
| #define SIERRA_RXBUFFER_DFECTRL_PREG			0x1A0
 | |
| #define SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG		0x14F
 | |
| #define SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG		0x150
 | |
| 
 | |
| #define SIERRA_PHY_CONFIG_CTRL_OFFSET(block_offset)	\
 | |
| 				      (0xc000 << (block_offset))
 | |
| #define SIERRA_PHY_PLL_CFG				0xe
 | |
| 
 | |
| #define SIERRA_MACRO_ID					0x00007364
 | |
| #define SIERRA_MAX_LANES				16
 | |
| #define PLL_LOCK_TIME					100000
 | |
| 
 | |
| #define CDNS_SIERRA_OUTPUT_CLOCKS			2
 | |
| #define CDNS_SIERRA_INPUT_CLOCKS			5
 | |
| enum cdns_sierra_clock_input {
 | |
| 	PHY_CLK,
 | |
| 	CMN_REFCLK_DIG_DIV,
 | |
| 	CMN_REFCLK1_DIG_DIV,
 | |
| 	PLL0_REFCLK,
 | |
| 	PLL1_REFCLK,
 | |
| };
 | |
| 
 | |
| #define SIERRA_NUM_CMN_PLLC				2
 | |
| #define SIERRA_NUM_CMN_PLLC_PARENTS			2
 | |
| 
 | |
| static const struct reg_field macro_id_type =
 | |
| 				REG_FIELD(SIERRA_MACRO_ID_REG, 0, 15);
 | |
| static const struct reg_field phy_pll_cfg_1 =
 | |
| 				REG_FIELD(SIERRA_PHY_PLL_CFG, 1, 1);
 | |
| static const struct reg_field pllctrl_lock =
 | |
| 				REG_FIELD(SIERRA_PLLCTRL_STATUS_PREG, 0, 0);
 | |
| 
 | |
| static const char * const clk_names[] = {
 | |
| 	[CDNS_SIERRA_PLL_CMNLC] = "pll_cmnlc",
 | |
| 	[CDNS_SIERRA_PLL_CMNLC1] = "pll_cmnlc1",
 | |
| };
 | |
| 
 | |
| enum cdns_sierra_cmn_plllc {
 | |
| 	CMN_PLLLC,
 | |
| 	CMN_PLLLC1,
 | |
| };
 | |
| 
 | |
| struct cdns_sierra_pll_mux_reg_fields {
 | |
| 	struct reg_field	pfdclk_sel_preg;
 | |
| 	struct reg_field	plllc1en_field;
 | |
| 	struct reg_field	termen_field;
 | |
| };
 | |
| 
 | |
| static const struct cdns_sierra_pll_mux_reg_fields cmn_plllc_pfdclk1_sel_preg[] = {
 | |
| 	[CMN_PLLLC] = {
 | |
| 		.pfdclk_sel_preg = REG_FIELD(SIERRA_CMN_PLLLC_GEN_PREG, 1, 1),
 | |
| 		.plllc1en_field = REG_FIELD(SIERRA_CMN_REFRCV1_PREG, 8, 8),
 | |
| 		.termen_field = REG_FIELD(SIERRA_CMN_REFRCV1_PREG, 0, 0),
 | |
| 	},
 | |
| 	[CMN_PLLLC1] = {
 | |
| 		.pfdclk_sel_preg = REG_FIELD(SIERRA_CMN_PLLLC1_GEN_PREG, 1, 1),
 | |
| 		.plllc1en_field = REG_FIELD(SIERRA_CMN_REFRCV_PREG, 8, 8),
 | |
| 		.termen_field = REG_FIELD(SIERRA_CMN_REFRCV_PREG, 0, 0),
 | |
| 	},
 | |
| };
 | |
| 
 | |
| struct cdns_sierra_pll_mux {
 | |
| 	struct clk_hw		hw;
 | |
| 	struct regmap_field	*pfdclk_sel_preg;
 | |
| 	struct regmap_field	*plllc1en_field;
 | |
| 	struct regmap_field	*termen_field;
 | |
| 	struct clk_init_data	clk_data;
 | |
| };
 | |
| 
 | |
| #define to_cdns_sierra_pll_mux(_hw)	\
 | |
| 			container_of(_hw, struct cdns_sierra_pll_mux, hw)
 | |
| 
 | |
| static const int pll_mux_parent_index[][SIERRA_NUM_CMN_PLLC_PARENTS] = {
 | |
| 	[CMN_PLLLC] = { PLL0_REFCLK, PLL1_REFCLK },
 | |
| 	[CMN_PLLLC1] = { PLL1_REFCLK, PLL0_REFCLK },
 | |
| };
 | |
| 
 | |
| static u32 cdns_sierra_pll_mux_table[] = { 0, 1 };
 | |
| 
 | |
| struct cdns_sierra_inst {
 | |
| 	struct phy *phy;
 | |
| 	u32 phy_type;
 | |
| 	u32 num_lanes;
 | |
| 	u32 mlane;
 | |
| 	struct reset_control *lnk_rst;
 | |
| };
 | |
| 
 | |
| struct cdns_reg_pairs {
 | |
| 	u16 val;
 | |
| 	u32 off;
 | |
| };
 | |
| 
 | |
| struct cdns_sierra_data {
 | |
| 		u32 id_value;
 | |
| 		u8 block_offset_shift;
 | |
| 		u8 reg_offset_shift;
 | |
| 		u32 pcie_cmn_regs;
 | |
| 		u32 pcie_ln_regs;
 | |
| 		u32 usb_cmn_regs;
 | |
| 		u32 usb_ln_regs;
 | |
| 		const struct cdns_reg_pairs *pcie_cmn_vals;
 | |
| 		const struct cdns_reg_pairs *pcie_ln_vals;
 | |
| 		const struct cdns_reg_pairs *usb_cmn_vals;
 | |
| 		const struct cdns_reg_pairs *usb_ln_vals;
 | |
| };
 | |
| 
 | |
| struct cdns_regmap_cdb_context {
 | |
| 	struct device *dev;
 | |
| 	void __iomem *base;
 | |
| 	u8 reg_offset_shift;
 | |
| };
 | |
| 
 | |
| struct cdns_sierra_phy {
 | |
| 	struct device *dev;
 | |
| 	struct regmap *regmap;
 | |
| 	struct cdns_sierra_data *init_data;
 | |
| 	struct cdns_sierra_inst phys[SIERRA_MAX_LANES];
 | |
| 	struct reset_control *phy_rst;
 | |
| 	struct reset_control *apb_rst;
 | |
| 	struct regmap *regmap_lane_cdb[SIERRA_MAX_LANES];
 | |
| 	struct regmap *regmap_phy_config_ctrl;
 | |
| 	struct regmap *regmap_common_cdb;
 | |
| 	struct regmap_field *macro_id_type;
 | |
| 	struct regmap_field *phy_pll_cfg_1;
 | |
| 	struct regmap_field *pllctrl_lock[SIERRA_MAX_LANES];
 | |
| 	struct regmap_field *cmn_refrcv_refclk_plllc1en_preg[SIERRA_NUM_CMN_PLLC];
 | |
| 	struct regmap_field *cmn_refrcv_refclk_termen_preg[SIERRA_NUM_CMN_PLLC];
 | |
| 	struct regmap_field *cmn_plllc_pfdclk1_sel_preg[SIERRA_NUM_CMN_PLLC];
 | |
| 	struct clk *input_clks[CDNS_SIERRA_INPUT_CLOCKS];
 | |
| 	int nsubnodes;
 | |
| 	u32 num_lanes;
 | |
| 	bool autoconf;
 | |
| 	struct clk_onecell_data clk_data;
 | |
| 	struct clk *output_clks[CDNS_SIERRA_OUTPUT_CLOCKS];
 | |
| };
 | |
| 
 | |
| static int cdns_regmap_write(void *context, unsigned int reg, unsigned int val)
 | |
| {
 | |
| 	struct cdns_regmap_cdb_context *ctx = context;
 | |
| 	u32 offset = reg << ctx->reg_offset_shift;
 | |
| 
 | |
| 	writew(val, ctx->base + offset);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_regmap_read(void *context, unsigned int reg, unsigned int *val)
 | |
| {
 | |
| 	struct cdns_regmap_cdb_context *ctx = context;
 | |
| 	u32 offset = reg << ctx->reg_offset_shift;
 | |
| 
 | |
| 	*val = readw(ctx->base + offset);
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| #define SIERRA_LANE_CDB_REGMAP_CONF(n) \
 | |
| { \
 | |
| 	.name = "sierra_lane" n "_cdb", \
 | |
| 	.reg_stride = 1, \
 | |
| 	.fast_io = true, \
 | |
| 	.reg_write = cdns_regmap_write, \
 | |
| 	.reg_read = cdns_regmap_read, \
 | |
| }
 | |
| 
 | |
| static const struct regmap_config cdns_sierra_lane_cdb_config[] = {
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("0"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("1"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("2"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("3"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("4"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("5"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("6"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("7"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("8"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("9"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("10"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("11"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("12"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("13"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("14"),
 | |
| 	SIERRA_LANE_CDB_REGMAP_CONF("15"),
 | |
| };
 | |
| 
 | |
| static const struct regmap_config cdns_sierra_common_cdb_config = {
 | |
| 	.name = "sierra_common_cdb",
 | |
| 	.reg_stride = 1,
 | |
| 	.fast_io = true,
 | |
| 	.reg_write = cdns_regmap_write,
 | |
| 	.reg_read = cdns_regmap_read,
 | |
| };
 | |
| 
 | |
| static const struct regmap_config cdns_sierra_phy_config_ctrl_config = {
 | |
| 	.name = "sierra_phy_config_ctrl",
 | |
| 	.reg_stride = 1,
 | |
| 	.fast_io = true,
 | |
| 	.reg_write = cdns_regmap_write,
 | |
| 	.reg_read = cdns_regmap_read,
 | |
| };
 | |
| 
 | |
| static int cdns_sierra_phy_init(struct phy *gphy)
 | |
| {
 | |
| 	struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
 | |
| 	struct cdns_sierra_phy *phy = dev_get_drvdata(gphy->dev.parent);
 | |
| 	struct regmap *regmap;
 | |
| 	int i, j;
 | |
| 	const struct cdns_reg_pairs *cmn_vals, *ln_vals;
 | |
| 	u32 num_cmn_regs, num_ln_regs;
 | |
| 
 | |
| 	/* Initialise the PHY registers, unless auto configured */
 | |
| 	if (phy->autoconf)
 | |
| 		return 0;
 | |
| 
 | |
| 	clk_set_rate(phy->input_clks[CMN_REFCLK_DIG_DIV], 25000000);
 | |
| 	clk_set_rate(phy->input_clks[CMN_REFCLK1_DIG_DIV], 25000000);
 | |
| 	if (ins->phy_type == PHY_TYPE_PCIE) {
 | |
| 		num_cmn_regs = phy->init_data->pcie_cmn_regs;
 | |
| 		num_ln_regs = phy->init_data->pcie_ln_regs;
 | |
| 		cmn_vals = phy->init_data->pcie_cmn_vals;
 | |
| 		ln_vals = phy->init_data->pcie_ln_vals;
 | |
| 	} else if (ins->phy_type == PHY_TYPE_USB3) {
 | |
| 		num_cmn_regs = phy->init_data->usb_cmn_regs;
 | |
| 		num_ln_regs = phy->init_data->usb_ln_regs;
 | |
| 		cmn_vals = phy->init_data->usb_cmn_vals;
 | |
| 		ln_vals = phy->init_data->usb_ln_vals;
 | |
| 	} else {
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	regmap = phy->regmap_common_cdb;
 | |
| 	for (j = 0; j < num_cmn_regs ; j++)
 | |
| 		regmap_write(regmap, cmn_vals[j].off, cmn_vals[j].val);
 | |
| 
 | |
| 	for (i = 0; i < ins->num_lanes; i++) {
 | |
| 		for (j = 0; j < num_ln_regs ; j++) {
 | |
| 			regmap = phy->regmap_lane_cdb[i + ins->mlane];
 | |
| 			regmap_write(regmap, ln_vals[j].off, ln_vals[j].val);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_on(struct phy *gphy)
 | |
| {
 | |
| 	struct cdns_sierra_phy *sp = dev_get_drvdata(gphy->dev.parent);
 | |
| 	struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
 | |
| 	struct device *dev = sp->dev;
 | |
| 	u32 val;
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = reset_control_deassert(sp->phy_rst);
 | |
| 	if (ret) {
 | |
| 		dev_err(dev, "Failed to take the PHY out of reset\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	/* Take the PHY lane group out of reset */
 | |
| 	ret = reset_control_deassert(ins->lnk_rst);
 | |
| 	if (ret) {
 | |
| 		dev_err(dev, "Failed to take the PHY lane out of reset\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	ret = regmap_field_read_poll_timeout(sp->pllctrl_lock[ins->mlane],
 | |
| 					     val, val, 1000, PLL_LOCK_TIME);
 | |
| 	if (ret < 0)
 | |
| 		dev_err(dev, "PLL lock of lane failed\n");
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_off(struct phy *gphy)
 | |
| {
 | |
| 	struct cdns_sierra_inst *ins = phy_get_drvdata(gphy);
 | |
| 
 | |
| 	return reset_control_assert(ins->lnk_rst);
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_reset(struct phy *gphy)
 | |
| {
 | |
| 	struct cdns_sierra_phy *sp = dev_get_drvdata(gphy->dev.parent);
 | |
| 
 | |
| 	reset_control_assert(sp->phy_rst);
 | |
| 	reset_control_deassert(sp->phy_rst);
 | |
| 	return 0;
 | |
| };
 | |
| 
 | |
| static const struct phy_ops ops = {
 | |
| 	.init		= cdns_sierra_phy_init,
 | |
| 	.power_on	= cdns_sierra_phy_on,
 | |
| 	.power_off	= cdns_sierra_phy_off,
 | |
| 	.reset		= cdns_sierra_phy_reset,
 | |
| 	.owner		= THIS_MODULE,
 | |
| };
 | |
| 
 | |
| static u8 cdns_sierra_pll_mux_get_parent(struct clk_hw *hw)
 | |
| {
 | |
| 	struct cdns_sierra_pll_mux *mux = to_cdns_sierra_pll_mux(hw);
 | |
| 	struct regmap_field *field = mux->pfdclk_sel_preg;
 | |
| 	unsigned int val;
 | |
| 
 | |
| 	regmap_field_read(field, &val);
 | |
| 	return clk_mux_val_to_index(hw, cdns_sierra_pll_mux_table, 0, val);
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_pll_mux_set_parent(struct clk_hw *hw, u8 index)
 | |
| {
 | |
| 	struct cdns_sierra_pll_mux *mux = to_cdns_sierra_pll_mux(hw);
 | |
| 	struct regmap_field *plllc1en_field = mux->plllc1en_field;
 | |
| 	struct regmap_field *termen_field = mux->termen_field;
 | |
| 	struct regmap_field *field = mux->pfdclk_sel_preg;
 | |
| 	int val, ret;
 | |
| 
 | |
| 	ret = regmap_field_write(plllc1en_field, 0);
 | |
| 	ret |= regmap_field_write(termen_field, 0);
 | |
| 	if (index == 1) {
 | |
| 		ret |= regmap_field_write(plllc1en_field, 1);
 | |
| 		ret |= regmap_field_write(termen_field, 1);
 | |
| 	}
 | |
| 
 | |
| 	val = cdns_sierra_pll_mux_table[index];
 | |
| 	ret |= regmap_field_write(field, val);
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static const struct clk_ops cdns_sierra_pll_mux_ops = {
 | |
| 	.set_parent = cdns_sierra_pll_mux_set_parent,
 | |
| 	.get_parent = cdns_sierra_pll_mux_get_parent,
 | |
| };
 | |
| 
 | |
| static int cdns_sierra_pll_mux_register(struct cdns_sierra_phy *sp,
 | |
| 					struct regmap_field *pfdclk1_sel_field,
 | |
| 					struct regmap_field *plllc1en_field,
 | |
| 					struct regmap_field *termen_field,
 | |
| 					int clk_index)
 | |
| {
 | |
| 	struct cdns_sierra_pll_mux *mux;
 | |
| 	struct device *dev = sp->dev;
 | |
| 	struct clk_init_data *init;
 | |
| 	const char **parent_names;
 | |
| 	unsigned int num_parents;
 | |
| 	char clk_name[100];
 | |
| 	struct clk *clk;
 | |
| 	int i;
 | |
| 
 | |
| 	mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);
 | |
| 	if (!mux)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	num_parents = SIERRA_NUM_CMN_PLLC_PARENTS;
 | |
| 	parent_names = devm_kzalloc(dev, (sizeof(char *) * num_parents), GFP_KERNEL);
 | |
| 	if (!parent_names)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	for (i = 0; i < num_parents; i++) {
 | |
| 		clk = sp->input_clks[pll_mux_parent_index[clk_index][i]];
 | |
| 		if (IS_ERR_OR_NULL(clk)) {
 | |
| 			dev_err(dev, "No parent clock for derived_refclk\n");
 | |
| 			return PTR_ERR(clk);
 | |
| 		}
 | |
| 		parent_names[i] = __clk_get_name(clk);
 | |
| 	}
 | |
| 
 | |
| 	snprintf(clk_name, sizeof(clk_name), "%s_%s", dev_name(dev), clk_names[clk_index]);
 | |
| 
 | |
| 	init = &mux->clk_data;
 | |
| 
 | |
| 	init->ops = &cdns_sierra_pll_mux_ops;
 | |
| 	init->flags = CLK_SET_RATE_NO_REPARENT;
 | |
| 	init->parent_names = parent_names;
 | |
| 	init->num_parents = num_parents;
 | |
| 	init->name = clk_name;
 | |
| 
 | |
| 	mux->pfdclk_sel_preg = pfdclk1_sel_field;
 | |
| 	mux->plllc1en_field = plllc1en_field;
 | |
| 	mux->termen_field = termen_field;
 | |
| 	mux->hw.init = init;
 | |
| 
 | |
| 	clk = devm_clk_register(dev, &mux->hw);
 | |
| 	if (IS_ERR(clk))
 | |
| 		return PTR_ERR(clk);
 | |
| 
 | |
| 	sp->output_clks[clk_index] = clk;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_register_pll_mux(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	struct regmap_field *pfdclk1_sel_field;
 | |
| 	struct regmap_field *plllc1en_field;
 | |
| 	struct regmap_field *termen_field;
 | |
| 	struct device *dev = sp->dev;
 | |
| 	int ret = 0, i, clk_index;
 | |
| 
 | |
| 	clk_index = CDNS_SIERRA_PLL_CMNLC;
 | |
| 	for (i = 0; i < SIERRA_NUM_CMN_PLLC; i++, clk_index++) {
 | |
| 		pfdclk1_sel_field = sp->cmn_plllc_pfdclk1_sel_preg[i];
 | |
| 		plllc1en_field = sp->cmn_refrcv_refclk_plllc1en_preg[i];
 | |
| 		termen_field = sp->cmn_refrcv_refclk_termen_preg[i];
 | |
| 
 | |
| 		ret = cdns_sierra_pll_mux_register(sp, pfdclk1_sel_field, plllc1en_field,
 | |
| 						   termen_field, clk_index);
 | |
| 		if (ret) {
 | |
| 			dev_err(dev, "Fail to register cmn plllc mux\n");
 | |
| 			return ret;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static void cdns_sierra_clk_unregister(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	struct device *dev = sp->dev;
 | |
| 	struct device_node *node = dev->of_node;
 | |
| 
 | |
| 	of_clk_del_provider(node);
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_clk_register(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	struct device *dev = sp->dev;
 | |
| 	struct device_node *node = dev->of_node;
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = cdns_sierra_phy_register_pll_mux(sp);
 | |
| 	if (ret) {
 | |
| 		dev_err(dev, "Failed to pll mux clocks\n");
 | |
| 		return ret;
 | |
| 	}
 | |
| 
 | |
| 	sp->clk_data.clks = sp->output_clks;
 | |
| 	sp->clk_data.clk_num = CDNS_SIERRA_OUTPUT_CLOCKS;
 | |
| 	ret = of_clk_add_provider(node, of_clk_src_onecell_get, &sp->clk_data);
 | |
| 	if (ret)
 | |
| 		dev_err(dev, "Failed to add clock provider: %s\n", node->name);
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_get_optional(struct cdns_sierra_inst *inst,
 | |
| 				    struct device_node *child)
 | |
| {
 | |
| 	if (of_property_read_u32(child, "reg", &inst->mlane))
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	if (of_property_read_u32(child, "cdns,num-lanes", &inst->num_lanes))
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	if (of_property_read_u32(child, "cdns,phy-type", &inst->phy_type))
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static const struct of_device_id cdns_sierra_id_table[];
 | |
| 
 | |
| static struct regmap *cdns_regmap_init(struct device *dev, void __iomem *base,
 | |
| 				       u32 block_offset, u8 reg_offset_shift,
 | |
| 				       const struct regmap_config *config)
 | |
| {
 | |
| 	struct cdns_regmap_cdb_context *ctx;
 | |
| 
 | |
| 	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 | |
| 	if (!ctx)
 | |
| 		return ERR_PTR(-ENOMEM);
 | |
| 
 | |
| 	ctx->dev = dev;
 | |
| 	ctx->base = base + block_offset;
 | |
| 	ctx->reg_offset_shift = reg_offset_shift;
 | |
| 
 | |
| 	return devm_regmap_init(dev, NULL, ctx, config);
 | |
| }
 | |
| 
 | |
| static int cdns_regfield_init(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	struct device *dev = sp->dev;
 | |
| 	struct regmap_field *field;
 | |
| 	struct reg_field reg_field;
 | |
| 	struct regmap *regmap;
 | |
| 	int i;
 | |
| 
 | |
| 	regmap = sp->regmap_common_cdb;
 | |
| 	field = devm_regmap_field_alloc(dev, regmap, macro_id_type);
 | |
| 	if (IS_ERR(field)) {
 | |
| 		dev_err(dev, "MACRO_ID_TYPE reg field init failed\n");
 | |
| 		return PTR_ERR(field);
 | |
| 	}
 | |
| 	sp->macro_id_type = field;
 | |
| 
 | |
| 	for (i = 0; i < SIERRA_NUM_CMN_PLLC; i++) {
 | |
| 		reg_field = cmn_plllc_pfdclk1_sel_preg[i].pfdclk_sel_preg;
 | |
| 		field = devm_regmap_field_alloc(dev, regmap, reg_field);
 | |
| 		if (IS_ERR(field)) {
 | |
| 			dev_err(dev, "PLLLC%d_PFDCLK1_SEL failed\n", i);
 | |
| 			return PTR_ERR(field);
 | |
| 		}
 | |
| 		sp->cmn_plllc_pfdclk1_sel_preg[i] = field;
 | |
| 
 | |
| 		reg_field = cmn_plllc_pfdclk1_sel_preg[i].plllc1en_field;
 | |
| 		field = devm_regmap_field_alloc(dev, regmap, reg_field);
 | |
| 		if (IS_ERR(field)) {
 | |
| 			dev_err(dev, "REFRCV%d_REFCLK_PLLLC1EN failed\n", i);
 | |
| 			return PTR_ERR(field);
 | |
| 		}
 | |
| 		sp->cmn_refrcv_refclk_plllc1en_preg[i] = field;
 | |
| 
 | |
| 		reg_field = cmn_plllc_pfdclk1_sel_preg[i].termen_field;
 | |
| 		field = devm_regmap_field_alloc(dev, regmap, reg_field);
 | |
| 		if (IS_ERR(field)) {
 | |
| 			dev_err(dev, "REFRCV%d_REFCLK_TERMEN failed\n", i);
 | |
| 			return PTR_ERR(field);
 | |
| 		}
 | |
| 		sp->cmn_refrcv_refclk_termen_preg[i] = field;
 | |
| 	}
 | |
| 
 | |
| 	regmap = sp->regmap_phy_config_ctrl;
 | |
| 	field = devm_regmap_field_alloc(dev, regmap, phy_pll_cfg_1);
 | |
| 	if (IS_ERR(field)) {
 | |
| 		dev_err(dev, "PHY_PLL_CFG_1 reg field init failed\n");
 | |
| 		return PTR_ERR(field);
 | |
| 	}
 | |
| 	sp->phy_pll_cfg_1 = field;
 | |
| 
 | |
| 	for (i = 0; i < SIERRA_MAX_LANES; i++) {
 | |
| 		regmap = sp->regmap_lane_cdb[i];
 | |
| 		field = devm_regmap_field_alloc(dev, regmap, pllctrl_lock);
 | |
| 		if (IS_ERR(field)) {
 | |
| 			dev_err(dev, "P%d_ENABLE reg field init failed\n", i);
 | |
| 			return PTR_ERR(field);
 | |
| 		}
 | |
| 		sp->pllctrl_lock[i] =  field;
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_regmap_init_blocks(struct cdns_sierra_phy *sp,
 | |
| 				   void __iomem *base, u8 block_offset_shift,
 | |
| 				   u8 reg_offset_shift)
 | |
| {
 | |
| 	struct device *dev = sp->dev;
 | |
| 	struct regmap *regmap;
 | |
| 	u32 block_offset;
 | |
| 	int i;
 | |
| 
 | |
| 	for (i = 0; i < SIERRA_MAX_LANES; i++) {
 | |
| 		block_offset = SIERRA_LANE_CDB_OFFSET(i, block_offset_shift,
 | |
| 						      reg_offset_shift);
 | |
| 		regmap = cdns_regmap_init(dev, base, block_offset,
 | |
| 					  reg_offset_shift,
 | |
| 					  &cdns_sierra_lane_cdb_config[i]);
 | |
| 		if (IS_ERR(regmap)) {
 | |
| 			dev_err(dev, "Failed to init lane CDB regmap\n");
 | |
| 			return PTR_ERR(regmap);
 | |
| 		}
 | |
| 		sp->regmap_lane_cdb[i] = regmap;
 | |
| 	}
 | |
| 
 | |
| 	regmap = cdns_regmap_init(dev, base, SIERRA_COMMON_CDB_OFFSET,
 | |
| 				  reg_offset_shift,
 | |
| 				  &cdns_sierra_common_cdb_config);
 | |
| 	if (IS_ERR(regmap)) {
 | |
| 		dev_err(dev, "Failed to init common CDB regmap\n");
 | |
| 		return PTR_ERR(regmap);
 | |
| 	}
 | |
| 	sp->regmap_common_cdb = regmap;
 | |
| 
 | |
| 	block_offset = SIERRA_PHY_CONFIG_CTRL_OFFSET(block_offset_shift);
 | |
| 	regmap = cdns_regmap_init(dev, base, block_offset, reg_offset_shift,
 | |
| 				  &cdns_sierra_phy_config_ctrl_config);
 | |
| 	if (IS_ERR(regmap)) {
 | |
| 		dev_err(dev, "Failed to init PHY config and control regmap\n");
 | |
| 		return PTR_ERR(regmap);
 | |
| 	}
 | |
| 	sp->regmap_phy_config_ctrl = regmap;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp,
 | |
| 				      struct device *dev)
 | |
| {
 | |
| 	struct clk *clk;
 | |
| 	int ret;
 | |
| 
 | |
| 	clk = devm_clk_get_optional(dev, "phy_clk");
 | |
| 	if (IS_ERR(clk)) {
 | |
| 		dev_err(dev, "failed to get clock phy_clk\n");
 | |
| 		return PTR_ERR(clk);
 | |
| 	}
 | |
| 	sp->input_clks[PHY_CLK] = clk;
 | |
| 
 | |
| 	clk = devm_clk_get_optional(dev, "cmn_refclk_dig_div");
 | |
| 	if (IS_ERR(clk)) {
 | |
| 		dev_err(dev, "cmn_refclk_dig_div clock not found\n");
 | |
| 		ret = PTR_ERR(clk);
 | |
| 		return ret;
 | |
| 	}
 | |
| 	sp->input_clks[CMN_REFCLK_DIG_DIV] = clk;
 | |
| 
 | |
| 	clk = devm_clk_get_optional(dev, "cmn_refclk1_dig_div");
 | |
| 	if (IS_ERR(clk)) {
 | |
| 		dev_err(dev, "cmn_refclk1_dig_div clock not found\n");
 | |
| 		ret = PTR_ERR(clk);
 | |
| 		return ret;
 | |
| 	}
 | |
| 	sp->input_clks[CMN_REFCLK1_DIG_DIV] = clk;
 | |
| 
 | |
| 	clk = devm_clk_get_optional(dev, "pll0_refclk");
 | |
| 	if (IS_ERR(clk)) {
 | |
| 		dev_err(dev, "pll0_refclk clock not found\n");
 | |
| 		ret = PTR_ERR(clk);
 | |
| 		return ret;
 | |
| 	}
 | |
| 	sp->input_clks[PLL0_REFCLK] = clk;
 | |
| 
 | |
| 	clk = devm_clk_get_optional(dev, "pll1_refclk");
 | |
| 	if (IS_ERR(clk)) {
 | |
| 		dev_err(dev, "pll1_refclk clock not found\n");
 | |
| 		ret = PTR_ERR(clk);
 | |
| 		return ret;
 | |
| 	}
 | |
| 	sp->input_clks[PLL1_REFCLK] = clk;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	int ret;
 | |
| 
 | |
| 	ret = clk_prepare_enable(sp->input_clks[PHY_CLK]);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
 | |
| 	if (ret)
 | |
| 		goto err_pll_cmnlc;
 | |
| 
 | |
| 	ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
 | |
| 	if (ret)
 | |
| 		goto err_pll_cmnlc1;
 | |
| 
 | |
| 	return 0;
 | |
| 
 | |
| err_pll_cmnlc1:
 | |
| 	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
 | |
| 
 | |
| err_pll_cmnlc:
 | |
| 	clk_disable_unprepare(sp->input_clks[PHY_CLK]);
 | |
| 
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static void cdns_sierra_phy_disable_clocks(struct cdns_sierra_phy *sp)
 | |
| {
 | |
| 	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
 | |
| 	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
 | |
| 	clk_disable_unprepare(sp->input_clks[PHY_CLK]);
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp,
 | |
| 				      struct device *dev)
 | |
| {
 | |
| 	struct reset_control *rst;
 | |
| 
 | |
| 	rst = devm_reset_control_get_exclusive(dev, "sierra_reset");
 | |
| 	if (IS_ERR(rst)) {
 | |
| 		dev_err(dev, "failed to get reset\n");
 | |
| 		return PTR_ERR(rst);
 | |
| 	}
 | |
| 	sp->phy_rst = rst;
 | |
| 
 | |
| 	rst = devm_reset_control_get_optional_exclusive(dev, "sierra_apb");
 | |
| 	if (IS_ERR(rst)) {
 | |
| 		dev_err(dev, "failed to get apb reset\n");
 | |
| 		return PTR_ERR(rst);
 | |
| 	}
 | |
| 	sp->apb_rst = rst;
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_probe(struct platform_device *pdev)
 | |
| {
 | |
| 	struct cdns_sierra_phy *sp;
 | |
| 	struct phy_provider *phy_provider;
 | |
| 	struct device *dev = &pdev->dev;
 | |
| 	const struct of_device_id *match;
 | |
| 	struct cdns_sierra_data *data;
 | |
| 	unsigned int id_value;
 | |
| 	int i, ret, node = 0;
 | |
| 	void __iomem *base;
 | |
| 	struct device_node *dn = dev->of_node, *child;
 | |
| 
 | |
| 	if (of_get_child_count(dn) == 0)
 | |
| 		return -ENODEV;
 | |
| 
 | |
| 	/* Get init data for this PHY */
 | |
| 	match = of_match_device(cdns_sierra_id_table, dev);
 | |
| 	if (!match)
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	data = (struct cdns_sierra_data *)match->data;
 | |
| 
 | |
| 	sp = devm_kzalloc(dev, sizeof(*sp), GFP_KERNEL);
 | |
| 	if (!sp)
 | |
| 		return -ENOMEM;
 | |
| 	dev_set_drvdata(dev, sp);
 | |
| 	sp->dev = dev;
 | |
| 	sp->init_data = data;
 | |
| 
 | |
| 	base = devm_platform_ioremap_resource(pdev, 0);
 | |
| 	if (IS_ERR(base)) {
 | |
| 		dev_err(dev, "missing \"reg\"\n");
 | |
| 		return PTR_ERR(base);
 | |
| 	}
 | |
| 
 | |
| 	ret = cdns_regmap_init_blocks(sp, base, data->block_offset_shift,
 | |
| 				      data->reg_offset_shift);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	ret = cdns_regfield_init(sp);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	platform_set_drvdata(pdev, sp);
 | |
| 
 | |
| 	ret = cdns_sierra_phy_get_clocks(sp, dev);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	ret = cdns_sierra_clk_register(sp);
 | |
| 	if (ret)
 | |
| 		return ret;
 | |
| 
 | |
| 	ret = cdns_sierra_phy_get_resets(sp, dev);
 | |
| 	if (ret)
 | |
| 		goto unregister_clk;
 | |
| 
 | |
| 	ret = cdns_sierra_phy_enable_clocks(sp);
 | |
| 	if (ret)
 | |
| 		goto unregister_clk;
 | |
| 
 | |
| 	/* Enable APB */
 | |
| 	reset_control_deassert(sp->apb_rst);
 | |
| 
 | |
| 	/* Check that PHY is present */
 | |
| 	regmap_field_read(sp->macro_id_type, &id_value);
 | |
| 	if  (sp->init_data->id_value != id_value) {
 | |
| 		ret = -EINVAL;
 | |
| 		goto clk_disable;
 | |
| 	}
 | |
| 
 | |
| 	sp->autoconf = of_property_read_bool(dn, "cdns,autoconf");
 | |
| 
 | |
| 	for_each_available_child_of_node(dn, child) {
 | |
| 		struct phy *gphy;
 | |
| 
 | |
| 		if (!(of_node_name_eq(child, "phy") ||
 | |
| 		      of_node_name_eq(child, "link")))
 | |
| 			continue;
 | |
| 
 | |
| 		sp->phys[node].lnk_rst =
 | |
| 			of_reset_control_array_get_exclusive(child);
 | |
| 
 | |
| 		if (IS_ERR(sp->phys[node].lnk_rst)) {
 | |
| 			dev_err(dev, "failed to get reset %s\n",
 | |
| 				child->full_name);
 | |
| 			ret = PTR_ERR(sp->phys[node].lnk_rst);
 | |
| 			goto put_child2;
 | |
| 		}
 | |
| 
 | |
| 		if (!sp->autoconf) {
 | |
| 			ret = cdns_sierra_get_optional(&sp->phys[node], child);
 | |
| 			if (ret) {
 | |
| 				dev_err(dev, "missing property in node %s\n",
 | |
| 					child->name);
 | |
| 				goto put_child;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		sp->num_lanes += sp->phys[node].num_lanes;
 | |
| 
 | |
| 		gphy = devm_phy_create(dev, child, &ops);
 | |
| 
 | |
| 		if (IS_ERR(gphy)) {
 | |
| 			ret = PTR_ERR(gphy);
 | |
| 			goto put_child;
 | |
| 		}
 | |
| 		sp->phys[node].phy = gphy;
 | |
| 		phy_set_drvdata(gphy, &sp->phys[node]);
 | |
| 
 | |
| 		node++;
 | |
| 	}
 | |
| 	sp->nsubnodes = node;
 | |
| 
 | |
| 	if (sp->num_lanes > SIERRA_MAX_LANES) {
 | |
| 		dev_err(dev, "Invalid lane configuration\n");
 | |
| 		goto put_child2;
 | |
| 	}
 | |
| 
 | |
| 	/* If more than one subnode, configure the PHY as multilink */
 | |
| 	if (!sp->autoconf && sp->nsubnodes > 1)
 | |
| 		regmap_field_write(sp->phy_pll_cfg_1, 0x1);
 | |
| 
 | |
| 	pm_runtime_enable(dev);
 | |
| 	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
 | |
| 	return PTR_ERR_OR_ZERO(phy_provider);
 | |
| 
 | |
| put_child:
 | |
| 	node++;
 | |
| put_child2:
 | |
| 	for (i = 0; i < node; i++)
 | |
| 		reset_control_put(sp->phys[i].lnk_rst);
 | |
| 	of_node_put(child);
 | |
| clk_disable:
 | |
| 	cdns_sierra_phy_disable_clocks(sp);
 | |
| 	reset_control_assert(sp->apb_rst);
 | |
| unregister_clk:
 | |
| 	cdns_sierra_clk_unregister(sp);
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static int cdns_sierra_phy_remove(struct platform_device *pdev)
 | |
| {
 | |
| 	struct cdns_sierra_phy *phy = platform_get_drvdata(pdev);
 | |
| 	int i;
 | |
| 
 | |
| 	reset_control_assert(phy->phy_rst);
 | |
| 	reset_control_assert(phy->apb_rst);
 | |
| 	pm_runtime_disable(&pdev->dev);
 | |
| 
 | |
| 	cdns_sierra_phy_disable_clocks(phy);
 | |
| 	/*
 | |
| 	 * The device level resets will be put automatically.
 | |
| 	 * Need to put the subnode resets here though.
 | |
| 	 */
 | |
| 	for (i = 0; i < phy->nsubnodes; i++) {
 | |
| 		reset_control_assert(phy->phys[i].lnk_rst);
 | |
| 		reset_control_put(phy->phys[i].lnk_rst);
 | |
| 	}
 | |
| 
 | |
| 	cdns_sierra_clk_unregister(phy);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| /* refclk100MHz_32b_PCIe_cmn_pll_ext_ssc */
 | |
| static const struct cdns_reg_pairs cdns_pcie_cmn_regs_ext_ssc[] = {
 | |
| 	{0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG},
 | |
| 	{0x2106, SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG},
 | |
| 	{0x8A06, SIERRA_CMN_PLLLC_BWCAL_MODE1_PREG},
 | |
| 	{0x8A06, SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG},
 | |
| 	{0x1B1B, SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG}
 | |
| };
 | |
| 
 | |
| /* refclk100MHz_32b_PCIe_ln_ext_ssc */
 | |
| static const struct cdns_reg_pairs cdns_pcie_ln_regs_ext_ssc[] = {
 | |
| 	{0x813E, SIERRA_CLKPATHCTRL_TMR_PREG},
 | |
| 	{0x8047, SIERRA_RX_CREQ_FLTR_A_MODE3_PREG},
 | |
| 	{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE2_PREG},
 | |
| 	{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
 | |
| 	{0x808F, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
 | |
| 	{0x033C, SIERRA_RX_CTLE_MAINTENANCE_PREG},
 | |
| 	{0x44CC, SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG}
 | |
| };
 | |
| 
 | |
| /* refclk100MHz_20b_USB_cmn_pll_ext_ssc */
 | |
| static const struct cdns_reg_pairs cdns_usb_cmn_regs_ext_ssc[] = {
 | |
| 	{0x2085, SIERRA_CMN_PLLLC_LF_COEFF_MODE1_PREG},
 | |
| 	{0x2085, SIERRA_CMN_PLLLC_LF_COEFF_MODE0_PREG},
 | |
| 	{0x0000, SIERRA_CMN_PLLLC_BWCAL_MODE0_PREG},
 | |
| 	{0x0000, SIERRA_CMN_PLLLC_SS_TIME_STEPSIZE_MODE_PREG}
 | |
| };
 | |
| 
 | |
| /* refclk100MHz_20b_USB_ln_ext_ssc */
 | |
| static const struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 | |
| 	{0xFE0A, SIERRA_DET_STANDEC_A_PREG},
 | |
| 	{0x000F, SIERRA_DET_STANDEC_B_PREG},
 | |
| 	{0x55A5, SIERRA_DET_STANDEC_C_PREG},
 | |
| 	{0x69ad, SIERRA_DET_STANDEC_D_PREG},
 | |
| 	{0x0241, SIERRA_DET_STANDEC_E_PREG},
 | |
| 	{0x0110, SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG},
 | |
| 	{0x0014, SIERRA_PSM_A0IN_TMR_PREG},
 | |
| 	{0xCF00, SIERRA_PSM_DIAG_PREG},
 | |
| 	{0x001F, SIERRA_PSC_TX_A0_PREG},
 | |
| 	{0x0007, SIERRA_PSC_TX_A1_PREG},
 | |
| 	{0x0003, SIERRA_PSC_TX_A2_PREG},
 | |
| 	{0x0003, SIERRA_PSC_TX_A3_PREG},
 | |
| 	{0x0FFF, SIERRA_PSC_RX_A0_PREG},
 | |
| 	{0x0003, SIERRA_PSC_RX_A1_PREG},
 | |
| 	{0x0003, SIERRA_PSC_RX_A2_PREG},
 | |
| 	{0x0001, SIERRA_PSC_RX_A3_PREG},
 | |
| 	{0x0001, SIERRA_PLLCTRL_SUBRATE_PREG},
 | |
| 	{0x0406, SIERRA_PLLCTRL_GEN_D_PREG},
 | |
| 	{0x5233, SIERRA_PLLCTRL_CPGAIN_MODE_PREG},
 | |
| 	{0x00CA, SIERRA_CLKPATH_BIASTRIM_PREG},
 | |
| 	{0x2512, SIERRA_DFE_BIASTRIM_PREG},
 | |
| 	{0x0000, SIERRA_DRVCTRL_ATTEN_PREG},
 | |
| 	{0x823E, SIERRA_CLKPATHCTRL_TMR_PREG},
 | |
| 	{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
 | |
| 	{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
 | |
| 	{0x7B3C, SIERRA_CREQ_CCLKDET_MODE01_PREG},
 | |
| 	{0x023C, SIERRA_RX_CTLE_MAINTENANCE_PREG},
 | |
| 	{0x3232, SIERRA_CREQ_FSMCLK_SEL_PREG},
 | |
| 	{0x0000, SIERRA_CREQ_EQ_CTRL_PREG},
 | |
| 	{0x0000, SIERRA_CREQ_SPARE_PREG},
 | |
| 	{0xCC44, SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG},
 | |
| 	{0x8452, SIERRA_CTLELUT_CTRL_PREG},
 | |
| 	{0x4121, SIERRA_DFE_ECMP_RATESEL_PREG},
 | |
| 	{0x4121, SIERRA_DFE_SMP_RATESEL_PREG},
 | |
| 	{0x0003, SIERRA_DEQ_PHALIGN_CTRL},
 | |
| 	{0x3200, SIERRA_DEQ_CONCUR_CTRL1_PREG},
 | |
| 	{0x5064, SIERRA_DEQ_CONCUR_CTRL2_PREG},
 | |
| 	{0x0030, SIERRA_DEQ_EPIPWR_CTRL2_PREG},
 | |
| 	{0x0048, SIERRA_DEQ_FAST_MAINT_CYCLES_PREG},
 | |
| 	{0x5A5A, SIERRA_DEQ_ERRCMP_CTRL_PREG},
 | |
| 	{0x02F5, SIERRA_DEQ_OFFSET_CTRL_PREG},
 | |
| 	{0x02F5, SIERRA_DEQ_GAIN_CTRL_PREG},
 | |
| 	{0x9999, SIERRA_DEQ_VGATUNE_CTRL_PREG},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT0},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT1},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT2},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT3},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT4},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT5},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT6},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT7},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT8},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT9},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT10},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT11},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT12},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT13},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT14},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT15},
 | |
| 	{0x0014, SIERRA_DEQ_GLUT16},
 | |
| 	{0x0BAE, SIERRA_DEQ_ALUT0},
 | |
| 	{0x0AEB, SIERRA_DEQ_ALUT1},
 | |
| 	{0x0A28, SIERRA_DEQ_ALUT2},
 | |
| 	{0x0965, SIERRA_DEQ_ALUT3},
 | |
| 	{0x08A2, SIERRA_DEQ_ALUT4},
 | |
| 	{0x07DF, SIERRA_DEQ_ALUT5},
 | |
| 	{0x071C, SIERRA_DEQ_ALUT6},
 | |
| 	{0x0659, SIERRA_DEQ_ALUT7},
 | |
| 	{0x0596, SIERRA_DEQ_ALUT8},
 | |
| 	{0x0514, SIERRA_DEQ_ALUT9},
 | |
| 	{0x0492, SIERRA_DEQ_ALUT10},
 | |
| 	{0x0410, SIERRA_DEQ_ALUT11},
 | |
| 	{0x038E, SIERRA_DEQ_ALUT12},
 | |
| 	{0x030C, SIERRA_DEQ_ALUT13},
 | |
| 	{0x03F4, SIERRA_DEQ_DFETAP_CTRL_PREG},
 | |
| 	{0x0001, SIERRA_DFE_EN_1010_IGNORE_PREG},
 | |
| 	{0x3C01, SIERRA_DEQ_TAU_CTRL1_FAST_MAINT_PREG},
 | |
| 	{0x3C40, SIERRA_DEQ_TAU_CTRL1_SLOW_MAINT_PREG},
 | |
| 	{0x1C08, SIERRA_DEQ_TAU_CTRL2_PREG},
 | |
| 	{0x0033, SIERRA_DEQ_PICTRL_PREG},
 | |
| 	{0x0400, SIERRA_CPICAL_TMRVAL_MODE1_PREG},
 | |
| 	{0x0330, SIERRA_CPICAL_TMRVAL_MODE0_PREG},
 | |
| 	{0x01FF, SIERRA_CPICAL_PICNT_MODE1_PREG},
 | |
| 	{0x0009, SIERRA_CPI_OUTBUF_RATESEL_PREG},
 | |
| 	{0x3232, SIERRA_CPICAL_RES_STARTCODE_MODE23_PREG},
 | |
| 	{0x0005, SIERRA_LFPSDET_SUPPORT_PREG},
 | |
| 	{0x000F, SIERRA_LFPSFILT_NS_PREG},
 | |
| 	{0x0009, SIERRA_LFPSFILT_RD_PREG},
 | |
| 	{0x0001, SIERRA_LFPSFILT_MP_PREG},
 | |
| 	{0x6013, SIERRA_SIGDET_SUPPORT_PREG},
 | |
| 	{0x8013, SIERRA_SDFILT_H2L_A_PREG},
 | |
| 	{0x8009, SIERRA_SDFILT_L2H_PREG},
 | |
| 	{0x0024, SIERRA_RXBUFFER_CTLECTRL_PREG},
 | |
| 	{0x0020, SIERRA_RXBUFFER_RCDFECTRL_PREG},
 | |
| 	{0x4243, SIERRA_RXBUFFER_DFECTRL_PREG}
 | |
| };
 | |
| 
 | |
| static const struct cdns_sierra_data cdns_map_sierra = {
 | |
| 	SIERRA_MACRO_ID,
 | |
| 	0x2,
 | |
| 	0x2,
 | |
| 	ARRAY_SIZE(cdns_pcie_cmn_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_pcie_ln_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_usb_cmn_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_usb_ln_regs_ext_ssc),
 | |
| 	cdns_pcie_cmn_regs_ext_ssc,
 | |
| 	cdns_pcie_ln_regs_ext_ssc,
 | |
| 	cdns_usb_cmn_regs_ext_ssc,
 | |
| 	cdns_usb_ln_regs_ext_ssc,
 | |
| };
 | |
| 
 | |
| static const struct cdns_sierra_data cdns_ti_map_sierra = {
 | |
| 	SIERRA_MACRO_ID,
 | |
| 	0x0,
 | |
| 	0x1,
 | |
| 	ARRAY_SIZE(cdns_pcie_cmn_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_pcie_ln_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_usb_cmn_regs_ext_ssc),
 | |
| 	ARRAY_SIZE(cdns_usb_ln_regs_ext_ssc),
 | |
| 	cdns_pcie_cmn_regs_ext_ssc,
 | |
| 	cdns_pcie_ln_regs_ext_ssc,
 | |
| 	cdns_usb_cmn_regs_ext_ssc,
 | |
| 	cdns_usb_ln_regs_ext_ssc,
 | |
| };
 | |
| 
 | |
| static const struct of_device_id cdns_sierra_id_table[] = {
 | |
| 	{
 | |
| 		.compatible = "cdns,sierra-phy-t0",
 | |
| 		.data = &cdns_map_sierra,
 | |
| 	},
 | |
| 	{
 | |
| 		.compatible = "ti,sierra-phy-t0",
 | |
| 		.data = &cdns_ti_map_sierra,
 | |
| 	},
 | |
| 	{}
 | |
| };
 | |
| MODULE_DEVICE_TABLE(of, cdns_sierra_id_table);
 | |
| 
 | |
| static struct platform_driver cdns_sierra_driver = {
 | |
| 	.probe		= cdns_sierra_phy_probe,
 | |
| 	.remove		= cdns_sierra_phy_remove,
 | |
| 	.driver		= {
 | |
| 		.name	= "cdns-sierra-phy",
 | |
| 		.of_match_table = cdns_sierra_id_table,
 | |
| 	},
 | |
| };
 | |
| module_platform_driver(cdns_sierra_driver);
 | |
| 
 | |
| MODULE_ALIAS("platform:cdns_sierra");
 | |
| MODULE_AUTHOR("Cadence Design Systems");
 | |
| MODULE_DESCRIPTION("CDNS sierra phy driver");
 | |
| MODULE_LICENSE("GPL v2");
 |