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99c7e03119
Do not cache the single CPG MODE register bit 12, instead cache the entire register value, and only pick the matching bit from the cached value when core clock of type MDSEL or PE are used. Both MDSEL and PE clock type currently define .offset field as 12 on Gen3, which means this code will use bit 12 on Gen3 again, however there are additional clock on Gen4 which use different bits, and having this flexibility in place now will be useful when adding Gen4. No functional change. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
143 lines
4.2 KiB
C
143 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* R-Car Gen3 Clock Pulse Generator
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*
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* Copyright (C) 2015-2018 Glider bvba
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* Copyright (C) 2018 Renesas Electronics Corp.
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*
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*/
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#ifndef __CLK_RENESAS_RCAR_GEN3_CPG_H__
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#define __CLK_RENESAS_RCAR_GEN3_CPG_H__
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enum rcar_gen3_clk_types {
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CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM,
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CLK_TYPE_GEN3_PLL0,
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CLK_TYPE_GEN3_PLL1,
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CLK_TYPE_GEN3_PLL2,
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CLK_TYPE_GEN3_PLL3,
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CLK_TYPE_GEN3_PLL4,
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CLK_TYPE_GEN3_SDH,
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CLK_TYPE_R8A77970_SD0H,
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CLK_TYPE_GEN3_SD,
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CLK_TYPE_R8A77970_SD0,
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CLK_TYPE_GEN3_R,
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CLK_TYPE_GEN3_MDSEL, /* Select parent/divider using mode pin */
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CLK_TYPE_GEN3_Z,
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CLK_TYPE_GEN3_OSC, /* OSC EXTAL predivider and fixed divider */
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CLK_TYPE_GEN3_RCKSEL, /* Select parent/divider using RCKCR.CKSEL */
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CLK_TYPE_GEN3_RPCSRC,
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CLK_TYPE_GEN3_D3_RPCSRC,
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CLK_TYPE_GEN3_E3_RPCSRC,
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CLK_TYPE_GEN3_RPC,
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CLK_TYPE_GEN3_RPCD2,
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CLK_TYPE_GEN4_MAIN,
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CLK_TYPE_GEN4_PLL1,
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CLK_TYPE_GEN4_PLL2X_3X, /* PLL[23][01] */
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CLK_TYPE_GEN4_PLL5,
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CLK_TYPE_GEN4_SDH,
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CLK_TYPE_GEN4_SD,
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CLK_TYPE_GEN4_MDSEL, /* Select parent/divider using mode pin */
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CLK_TYPE_GEN4_Z,
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CLK_TYPE_GEN4_OSC, /* OSC EXTAL predivider and fixed divider */
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CLK_TYPE_GEN4_RPCSRC,
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CLK_TYPE_GEN4_RPC,
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CLK_TYPE_GEN4_RPCD2,
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/* SoC specific definitions start here */
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CLK_TYPE_GEN3_SOC_BASE,
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};
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#define DEF_GEN3_SDH(_name, _id, _parent, _offset) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_SDH, _parent, .offset = _offset)
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#define DEF_GEN3_SD(_name, _id, _parent, _offset) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
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#define DEF_GEN3_MDSEL(_name, _id, _md, _parent0, _div0, _parent1, _div1) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_MDSEL, \
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(_parent0) << 16 | (_parent1), \
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.div = (_div0) << 16 | (_div1), .offset = _md)
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#define DEF_GEN3_PE(_name, _id, _parent_sscg, _div_sscg, _parent_clean, \
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_div_clean) \
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DEF_GEN3_MDSEL(_name, _id, 12, _parent_sscg, _div_sscg, \
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_parent_clean, _div_clean)
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#define DEF_GEN3_OSC(_name, _id, _parent, _div) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_OSC, _parent, .div = _div)
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#define DEF_GEN3_RCKSEL(_name, _id, _parent0, _div0, _parent1, _div1) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL, \
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(_parent0) << 16 | (_parent1), .div = (_div0) << 16 | (_div1))
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#define DEF_GEN3_Z(_name, _id, _type, _parent, _div, _offset) \
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DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
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#define DEF_FIXED_RPCSRC_D3(_name, _id, _parent0, _parent1) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_D3_RPCSRC, \
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(_parent0) << 16 | (_parent1), .div = 5)
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#define DEF_FIXED_RPCSRC_E3(_name, _id, _parent0, _parent1) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN3_E3_RPCSRC, \
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(_parent0) << 16 | (_parent1), .div = 8)
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#define DEF_GEN4_SDH(_name, _id, _parent, _offset) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN4_SDH, _parent, .offset = _offset)
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#define DEF_GEN4_SD(_name, _id, _parent, _offset) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN4_SD, _parent, .offset = _offset)
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#define DEF_GEN4_MDSEL(_name, _id, _md, _parent0, _div0, _parent1, _div1) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN4_MDSEL, \
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(_parent0) << 16 | (_parent1), \
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.div = (_div0) << 16 | (_div1), .offset = _md)
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#define DEF_GEN4_OSC(_name, _id, _parent, _div) \
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DEF_BASE(_name, _id, CLK_TYPE_GEN4_OSC, _parent, .div = _div)
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#define DEF_GEN4_Z(_name, _id, _type, _parent, _div, _offset) \
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DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
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struct rcar_gen3_cpg_pll_config {
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u8 extal_div;
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u8 pll1_mult;
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u8 pll1_div;
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u8 pll3_mult;
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u8 pll3_div;
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u8 osc_prediv;
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u8 pll5_mult;
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u8 pll5_div;
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};
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#define CPG_RST_MODEMR 0x060
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#define CPG_SDCKCR_STPnHCK BIT(9)
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#define CPG_SDCKCR_STPnCK BIT(8)
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#define CPG_SDCKCR_SRCFC_MASK GENMASK(4, 2)
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#define CPG_SDCKCR_FC_MASK GENMASK(1, 0)
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/* V3M specifics */
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#define CPG_SDCKCR_SDHFC_MASK GENMASK(11, 8)
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#define CPG_SDCKCR_SD0FC_MASK GENMASK(7, 4)
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#define CPG_RPCCKCR 0x238
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#define CPG_RPCCKCR_DIV_POST_MASK GENMASK(4, 3)
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#define CPG_RPCCKCR_DIV_PRE_MASK GENMASK(2, 0)
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#define CPG_RCKCR 0x240
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struct gen3_clk_priv {
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void __iomem *base;
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struct cpg_mssr_info *info;
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struct clk clk_extal;
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struct clk clk_extalr;
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u32 cpg_mode;
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const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
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};
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int gen3_cpg_bind(struct udevice *parent);
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extern const struct clk_ops gen3_clk_ops;
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#endif
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