// SPDX-License-Identifier: GPL-2.0-only /* * SAMA7G5 PMC code. * * Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries * * Author: Claudiu Beznea * */ #include #include #include #include #include #include #include "pmc.h" #define SAMA7G5_INIT_TABLE(_table, _count) \ do { \ u8 _i; \ for (_i = 0; _i < (_count); _i++) \ (_table)[_i] = _i; \ } while (0) #define SAMA7G5_FILL_TABLE(_to, _from, _count) \ do { \ u8 _i; \ for (_i = 0; _i < (_count); _i++) { \ (_to)[_i] = (_from)[_i]; \ } \ } while (0) static DEFINE_SPINLOCK(pmc_pll_lock); static DEFINE_SPINLOCK(pmc_mck0_lock); static DEFINE_SPINLOCK(pmc_mckX_lock); /* * PLL clocks identifiers * @PLL_ID_CPU: CPU PLL identifier * @PLL_ID_SYS: System PLL identifier * @PLL_ID_DDR: DDR PLL identifier * @PLL_ID_IMG: Image subsystem PLL identifier * @PLL_ID_BAUD: Baud PLL identifier * @PLL_ID_AUDIO: Audio PLL identifier * @PLL_ID_ETH: Ethernet PLL identifier */ enum pll_ids { PLL_ID_CPU, PLL_ID_SYS, PLL_ID_DDR, PLL_ID_IMG, PLL_ID_BAUD, PLL_ID_AUDIO, PLL_ID_ETH, PLL_ID_MAX, }; /* * PLL type identifiers * @PLL_TYPE_FRAC: fractional PLL identifier * @PLL_TYPE_DIV: divider PLL identifier */ enum pll_type { PLL_TYPE_FRAC, PLL_TYPE_DIV, }; /* Layout for fractional PLLs. */ static const struct clk_pll_layout pll_layout_frac = { .mul_mask = GENMASK(31, 24), .frac_mask = GENMASK(21, 0), .mul_shift = 24, .frac_shift = 0, }; /* Layout for DIVPMC dividers. */ static const struct clk_pll_layout pll_layout_divpmc = { .div_mask = GENMASK(7, 0), .endiv_mask = BIT(29), .div_shift = 0, .endiv_shift = 29, }; /* Layout for DIVIO dividers. */ static const struct clk_pll_layout pll_layout_divio = { .div_mask = GENMASK(19, 12), .endiv_mask = BIT(30), .div_shift = 12, .endiv_shift = 30, }; /* * CPU PLL output range. * Notice: The upper limit has been setup to 1000000002 due to hardware * block which cannot output exactly 1GHz. */ static const struct clk_range cpu_pll_outputs[] = { { .min = 2343750, .max = 1000000002 }, }; /* PLL output range. */ static const struct clk_range pll_outputs[] = { { .min = 2343750, .max = 1200000000 }, }; /* CPU PLL characteristics. */ static const struct clk_pll_characteristics cpu_pll_characteristics = { .input = { .min = 12000000, .max = 50000000 }, .num_output = ARRAY_SIZE(cpu_pll_outputs), .output = cpu_pll_outputs, }; /* PLL characteristics. */ static const struct clk_pll_characteristics pll_characteristics = { .input = { .min = 12000000, .max = 50000000 }, .num_output = ARRAY_SIZE(pll_outputs), .output = pll_outputs, }; /* * PLL clocks description * @n: clock name * @p: clock parent * @l: clock layout * @c: clock characteristics * @t: clock type * @f: clock flags * @eid: export index in sama7g5->chws[] array */ static const struct { const char *n; const char *p; const struct clk_pll_layout *l; const struct clk_pll_characteristics *c; unsigned long f; u8 t; u8 eid; } sama7g5_plls[][PLL_ID_MAX] = { [PLL_ID_CPU] = { { .n = "cpupll_fracck", .p = "mainck", .l = &pll_layout_frac, .c = &cpu_pll_characteristics, .t = PLL_TYPE_FRAC, /* * This feeds cpupll_divpmcck which feeds CPU. It should * not be disabled. */ .f = CLK_IS_CRITICAL, }, { .n = "cpupll_divpmcck", .p = "cpupll_fracck", .l = &pll_layout_divpmc, .c = &cpu_pll_characteristics, .t = PLL_TYPE_DIV, /* This feeds CPU. It should not be disabled. */ .f = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT, .eid = PMC_CPUPLL, }, }, [PLL_ID_SYS] = { { .n = "syspll_fracck", .p = "mainck", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, /* * This feeds syspll_divpmcck which may feed critical parts * of the systems like timers. Therefore it should not be * disabled. */ .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, }, { .n = "syspll_divpmcck", .p = "syspll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, /* * This may feed critical parts of the systems like timers. * Therefore it should not be disabled. */ .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, .eid = PMC_SYSPLL, }, }, [PLL_ID_DDR] = { { .n = "ddrpll_fracck", .p = "mainck", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, /* * This feeds ddrpll_divpmcck which feeds DDR. It should not * be disabled. */ .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, }, { .n = "ddrpll_divpmcck", .p = "ddrpll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, /* This feeds DDR. It should not be disabled. */ .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, }, }, [PLL_ID_IMG] = { { .n = "imgpll_fracck", .p = "mainck", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, .f = CLK_SET_RATE_GATE, }, { .n = "imgpll_divpmcck", .p = "imgpll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | CLK_SET_RATE_PARENT, }, }, [PLL_ID_BAUD] = { { .n = "baudpll_fracck", .p = "mainck", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, .f = CLK_SET_RATE_GATE, }, { .n = "baudpll_divpmcck", .p = "baudpll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | CLK_SET_RATE_PARENT, }, }, [PLL_ID_AUDIO] = { { .n = "audiopll_fracck", .p = "main_xtal", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, .f = CLK_SET_RATE_GATE, }, { .n = "audiopll_divpmcck", .p = "audiopll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | CLK_SET_RATE_PARENT, .eid = PMC_AUDIOPMCPLL, }, { .n = "audiopll_diviock", .p = "audiopll_fracck", .l = &pll_layout_divio, .c = &pll_characteristics, .t = PLL_TYPE_DIV, .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | CLK_SET_RATE_PARENT, .eid = PMC_AUDIOIOPLL, }, }, [PLL_ID_ETH] = { { .n = "ethpll_fracck", .p = "main_xtal", .l = &pll_layout_frac, .c = &pll_characteristics, .t = PLL_TYPE_FRAC, .f = CLK_SET_RATE_GATE, }, { .n = "ethpll_divpmcck", .p = "ethpll_fracck", .l = &pll_layout_divpmc, .c = &pll_characteristics, .t = PLL_TYPE_DIV, .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE | CLK_SET_RATE_PARENT, }, }, }; /* * Master clock (MCK[1..4]) description * @n: clock name * @ep: extra parents names array * @ep_chg_chg_id: index in parents array that specifies the changeable * parent * @ep_count: extra parents count * @ep_mux_table: mux table for extra parents * @id: clock id * @eid: export index in sama7g5->chws[] array * @c: true if clock is critical and cannot be disabled */ static const struct { const char *n; const char *ep[4]; int ep_chg_id; u8 ep_count; u8 ep_mux_table[4]; u8 id; u8 eid; u8 c; } sama7g5_mckx[] = { { .n = "mck1", .id = 1, .ep = { "syspll_divpmcck", }, .ep_mux_table = { 5, }, .ep_count = 1, .ep_chg_id = INT_MIN, .eid = PMC_MCK1, .c = 1, }, { .n = "mck2", .id = 2, .ep = { "ddrpll_divpmcck", }, .ep_mux_table = { 6, }, .ep_count = 1, .ep_chg_id = INT_MIN, .c = 1, }, { .n = "mck3", .id = 3, .ep = { "syspll_divpmcck", "ddrpll_divpmcck", "imgpll_divpmcck", }, .ep_mux_table = { 5, 6, 7, }, .ep_count = 3, .ep_chg_id = 5, }, { .n = "mck4", .id = 4, .ep = { "syspll_divpmcck", }, .ep_mux_table = { 5, }, .ep_count = 1, .ep_chg_id = INT_MIN, .c = 1, }, }; /* * System clock description * @n: clock name * @p: clock parent name * @id: clock id */ static const struct { const char *n; const char *p; u8 id; } sama7g5_systemck[] = { { .n = "pck0", .p = "prog0", .id = 8, }, { .n = "pck1", .p = "prog1", .id = 9, }, { .n = "pck2", .p = "prog2", .id = 10, }, { .n = "pck3", .p = "prog3", .id = 11, }, { .n = "pck4", .p = "prog4", .id = 12, }, { .n = "pck5", .p = "prog5", .id = 13, }, { .n = "pck6", .p = "prog6", .id = 14, }, { .n = "pck7", .p = "prog7", .id = 15, }, }; /* Mux table for programmable clocks. */ static u32 sama7g5_prog_mux_table[] = { 0, 1, 2, 5, 6, 7, 8, 9, 10, }; /* * Peripheral clock description * @n: clock name * @p: clock parent name * @r: clock range values * @id: clock id * @chgp: index in parent array of the changeable parent */ static const struct { const char *n; const char *p; struct clk_range r; u8 chgp; u8 id; } sama7g5_periphck[] = { { .n = "pioA_clk", .p = "mck0", .id = 11, }, { .n = "securam_clk", .p = "mck0", .id = 18, }, { .n = "sfr_clk", .p = "mck1", .id = 19, }, { .n = "hsmc_clk", .p = "mck1", .id = 21, }, { .n = "xdmac0_clk", .p = "mck1", .id = 22, }, { .n = "xdmac1_clk", .p = "mck1", .id = 23, }, { .n = "xdmac2_clk", .p = "mck1", .id = 24, }, { .n = "acc_clk", .p = "mck1", .id = 25, }, { .n = "aes_clk", .p = "mck1", .id = 27, }, { .n = "tzaesbasc_clk", .p = "mck1", .id = 28, }, { .n = "asrc_clk", .p = "mck1", .id = 30, .r = { .max = 200000000, }, }, { .n = "cpkcc_clk", .p = "mck0", .id = 32, }, { .n = "csi_clk", .p = "mck3", .id = 33, .r = { .max = 266000000, }, .chgp = 1, }, { .n = "csi2dc_clk", .p = "mck3", .id = 34, .r = { .max = 266000000, }, .chgp = 1, }, { .n = "eic_clk", .p = "mck1", .id = 37, }, { .n = "flex0_clk", .p = "mck1", .id = 38, }, { .n = "flex1_clk", .p = "mck1", .id = 39, }, { .n = "flex2_clk", .p = "mck1", .id = 40, }, { .n = "flex3_clk", .p = "mck1", .id = 41, }, { .n = "flex4_clk", .p = "mck1", .id = 42, }, { .n = "flex5_clk", .p = "mck1", .id = 43, }, { .n = "flex6_clk", .p = "mck1", .id = 44, }, { .n = "flex7_clk", .p = "mck1", .id = 45, }, { .n = "flex8_clk", .p = "mck1", .id = 46, }, { .n = "flex9_clk", .p = "mck1", .id = 47, }, { .n = "flex10_clk", .p = "mck1", .id = 48, }, { .n = "flex11_clk", .p = "mck1", .id = 49, }, { .n = "gmac0_clk", .p = "mck1", .id = 51, }, { .n = "gmac1_clk", .p = "mck1", .id = 52, }, { .n = "icm_clk", .p = "mck1", .id = 55, }, { .n = "isc_clk", .p = "mck3", .id = 56, .r = { .max = 266000000, }, .chgp = 1, }, { .n = "i2smcc0_clk", .p = "mck1", .id = 57, .r = { .max = 200000000, }, }, { .n = "i2smcc1_clk", .p = "mck1", .id = 58, .r = { .max = 200000000, }, }, { .n = "matrix_clk", .p = "mck1", .id = 60, }, { .n = "mcan0_clk", .p = "mck1", .id = 61, .r = { .max = 200000000, }, }, { .n = "mcan1_clk", .p = "mck1", .id = 62, .r = { .max = 200000000, }, }, { .n = "mcan2_clk", .p = "mck1", .id = 63, .r = { .max = 200000000, }, }, { .n = "mcan3_clk", .p = "mck1", .id = 64, .r = { .max = 200000000, }, }, { .n = "mcan4_clk", .p = "mck1", .id = 65, .r = { .max = 200000000, }, }, { .n = "mcan5_clk", .p = "mck1", .id = 66, .r = { .max = 200000000, }, }, { .n = "pdmc0_clk", .p = "mck1", .id = 68, .r = { .max = 200000000, }, }, { .n = "pdmc1_clk", .p = "mck1", .id = 69, .r = { .max = 200000000, }, }, { .n = "pit64b0_clk", .p = "mck1", .id = 70, }, { .n = "pit64b1_clk", .p = "mck1", .id = 71, }, { .n = "pit64b2_clk", .p = "mck1", .id = 72, }, { .n = "pit64b3_clk", .p = "mck1", .id = 73, }, { .n = "pit64b4_clk", .p = "mck1", .id = 74, }, { .n = "pit64b5_clk", .p = "mck1", .id = 75, }, { .n = "pwm_clk", .p = "mck1", .id = 77, }, { .n = "qspi0_clk", .p = "mck1", .id = 78, }, { .n = "qspi1_clk", .p = "mck1", .id = 79, }, { .n = "sdmmc0_clk", .p = "mck1", .id = 80, }, { .n = "sdmmc1_clk", .p = "mck1", .id = 81, }, { .n = "sdmmc2_clk", .p = "mck1", .id = 82, }, { .n = "sha_clk", .p = "mck1", .id = 83, }, { .n = "spdifrx_clk", .p = "mck1", .id = 84, .r = { .max = 200000000, }, }, { .n = "spdiftx_clk", .p = "mck1", .id = 85, .r = { .max = 200000000, }, }, { .n = "ssc0_clk", .p = "mck1", .id = 86, .r = { .max = 200000000, }, }, { .n = "ssc1_clk", .p = "mck1", .id = 87, .r = { .max = 200000000, }, }, { .n = "tcb0_ch0_clk", .p = "mck1", .id = 88, .r = { .max = 200000000, }, }, { .n = "tcb0_ch1_clk", .p = "mck1", .id = 89, .r = { .max = 200000000, }, }, { .n = "tcb0_ch2_clk", .p = "mck1", .id = 90, .r = { .max = 200000000, }, }, { .n = "tcb1_ch0_clk", .p = "mck1", .id = 91, .r = { .max = 200000000, }, }, { .n = "tcb1_ch1_clk", .p = "mck1", .id = 92, .r = { .max = 200000000, }, }, { .n = "tcb1_ch2_clk", .p = "mck1", .id = 93, .r = { .max = 200000000, }, }, { .n = "tcpca_clk", .p = "mck1", .id = 94, }, { .n = "tcpcb_clk", .p = "mck1", .id = 95, }, { .n = "tdes_clk", .p = "mck1", .id = 96, }, { .n = "trng_clk", .p = "mck1", .id = 97, }, { .n = "udphsa_clk", .p = "mck1", .id = 104, }, { .n = "udphsb_clk", .p = "mck1", .id = 105, }, { .n = "uhphs_clk", .p = "mck1", .id = 106, }, }; /* * Generic clock description * @n: clock name * @pp: PLL parents * @pp_mux_table: PLL parents mux table * @r: clock output range * @pp_chg_id: id in parent array of changeable PLL parent * @pp_count: PLL parents count * @id: clock id */ static const struct { const char *n; const char *pp[8]; const char pp_mux_table[8]; struct clk_range r; int pp_chg_id; u8 pp_count; u8 id; } sama7g5_gck[] = { { .n = "adc_gclk", .id = 26, .r = { .max = 100000000, }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 7, 9, }, .pp_count = 3, .pp_chg_id = INT_MIN, }, { .n = "asrc_gclk", .id = 30, .r = { .max = 200000000 }, .pp = { "audiopll_divpmcck", }, .pp_mux_table = { 9, }, .pp_count = 1, .pp_chg_id = 3, }, { .n = "csi_gclk", .id = 33, .r = { .max = 27000000 }, .pp = { "ddrpll_divpmcck", "imgpll_divpmcck", }, .pp_mux_table = { 6, 7, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex0_gclk", .id = 38, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex1_gclk", .id = 39, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex2_gclk", .id = 40, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex3_gclk", .id = 41, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex4_gclk", .id = 42, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex5_gclk", .id = 43, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex6_gclk", .id = 44, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex7_gclk", .id = 45, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex8_gclk", .id = 46, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex9_gclk", .id = 47, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex10_gclk", .id = 48, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "flex11_gclk", .id = 49, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "gmac0_gclk", .id = 51, .r = { .max = 125000000 }, .pp = { "ethpll_divpmcck", }, .pp_mux_table = { 10, }, .pp_count = 1, .pp_chg_id = 3, }, { .n = "gmac1_gclk", .id = 52, .r = { .max = 50000000 }, .pp = { "ethpll_divpmcck", }, .pp_mux_table = { 10, }, .pp_count = 1, .pp_chg_id = INT_MIN, }, { .n = "gmac0_tsu_gclk", .id = 53, .r = { .max = 300000000 }, .pp = { "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 9, 10, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "gmac1_tsu_gclk", .id = 54, .r = { .max = 300000000 }, .pp = { "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 9, 10, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "i2smcc0_gclk", .id = 57, .r = { .max = 100000000 }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "i2smcc1_gclk", .id = 58, .r = { .max = 100000000 }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "mcan0_gclk", .id = 61, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "mcan1_gclk", .id = 62, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "mcan2_gclk", .id = 63, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "mcan3_gclk", .id = 64, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "mcan4_gclk", .id = 65, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "mcan5_gclk", .id = 66, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "pdmc0_gclk", .id = 68, .r = { .max = 50000000 }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "pdmc1_gclk", .id = 69, .r = { .max = 50000000, }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "pit64b0_gclk", .id = 70, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "pit64b1_gclk", .id = 71, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "pit64b2_gclk", .id = 72, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "pit64b3_gclk", .id = 73, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "pit64b4_gclk", .id = 74, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "pit64b5_gclk", .id = 75, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "qspi0_gclk", .id = 78, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "qspi1_gclk", .id = 79, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = INT_MIN, }, { .n = "sdmmc0_gclk", .id = 80, .r = { .max = 208000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "sdmmc1_gclk", .id = 81, .r = { .max = 208000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "sdmmc2_gclk", .id = 82, .r = { .max = 208000000 }, .pp = { "syspll_divpmcck", "baudpll_divpmcck", }, .pp_mux_table = { 5, 8, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "spdifrx_gclk", .id = 84, .r = { .max = 150000000 }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "spdiftx_gclk", .id = 85, .r = { .max = 25000000 }, .pp = { "syspll_divpmcck", "audiopll_divpmcck", }, .pp_mux_table = { 5, 9, }, .pp_count = 2, .pp_chg_id = 4, }, { .n = "tcb0_ch0_gclk", .id = 88, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "tcb1_ch0_gclk", .id = 91, .r = { .max = 200000000 }, .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck", "audiopll_divpmcck", "ethpll_divpmcck", }, .pp_mux_table = { 5, 7, 8, 9, 10, }, .pp_count = 5, .pp_chg_id = INT_MIN, }, { .n = "tcpca_gclk", .id = 94, .r = { .max = 32768, }, .pp_chg_id = INT_MIN, }, { .n = "tcpcb_gclk", .id = 95, .r = { .max = 32768, }, .pp_chg_id = INT_MIN, }, }; /* MCK0 characteristics. */ static const struct clk_master_characteristics mck0_characteristics = { .output = { .min = 32768, .max = 200000000 }, .divisors = { 1, 2, 4, 3, 5 }, .have_div3_pres = 1, }; /* MCK0 layout. */ static const struct clk_master_layout mck0_layout = { .mask = 0x773, .pres_shift = 4, .offset = 0x28, }; /* Programmable clock layout. */ static const struct clk_programmable_layout programmable_layout = { .pres_mask = 0xff, .pres_shift = 8, .css_mask = 0x1f, .have_slck_mck = 0, .is_pres_direct = 1, }; /* Peripheral clock layout. */ static const struct clk_pcr_layout sama7g5_pcr_layout = { .offset = 0x88, .cmd = BIT(31), .gckcss_mask = GENMASK(12, 8), .pid_mask = GENMASK(6, 0), }; static void __init sama7g5_pmc_setup(struct device_node *np) { const char *td_slck_name, *md_slck_name, *mainxtal_name; struct pmc_data *sama7g5_pmc; const char *parent_names[10]; void **alloc_mem = NULL; int alloc_mem_size = 0; struct regmap *regmap; struct clk_hw *hw; bool bypass; int i, j; i = of_property_match_string(np, "clock-names", "td_slck"); if (i < 0) return; td_slck_name = of_clk_get_parent_name(np, i); i = of_property_match_string(np, "clock-names", "md_slck"); if (i < 0) return; md_slck_name = of_clk_get_parent_name(np, i); i = of_property_match_string(np, "clock-names", "main_xtal"); if (i < 0) return; mainxtal_name = of_clk_get_parent_name(np, i); regmap = device_node_to_regmap(np); if (IS_ERR(regmap)) return; sama7g5_pmc = pmc_data_allocate(PMC_MCK1 + 1, nck(sama7g5_systemck), nck(sama7g5_periphck), nck(sama7g5_gck), 8); if (!sama7g5_pmc) return; alloc_mem = kmalloc(sizeof(void *) * (ARRAY_SIZE(sama7g5_mckx) + ARRAY_SIZE(sama7g5_gck)), GFP_KERNEL); if (!alloc_mem) goto err_free; hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000, 50000000); if (IS_ERR(hw)) goto err_free; bypass = of_property_read_bool(np, "atmel,osc-bypass"); hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name, bypass); if (IS_ERR(hw)) goto err_free; parent_names[0] = "main_rc_osc"; parent_names[1] = "main_osc"; hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->chws[PMC_MAIN] = hw; for (i = 0; i < PLL_ID_MAX; i++) { for (j = 0; j < 3; j++) { struct clk_hw *parent_hw; if (!sama7g5_plls[i][j].n) continue; switch (sama7g5_plls[i][j].t) { case PLL_TYPE_FRAC: if (!strcmp(sama7g5_plls[i][j].p, "mainck")) parent_hw = sama7g5_pmc->chws[PMC_MAIN]; else parent_hw = __clk_get_hw(of_clk_get_by_name(np, sama7g5_plls[i][j].p)); hw = sam9x60_clk_register_frac_pll(regmap, &pmc_pll_lock, sama7g5_plls[i][j].n, sama7g5_plls[i][j].p, parent_hw, i, sama7g5_plls[i][j].c, sama7g5_plls[i][j].l, sama7g5_plls[i][j].f); break; case PLL_TYPE_DIV: hw = sam9x60_clk_register_div_pll(regmap, &pmc_pll_lock, sama7g5_plls[i][j].n, sama7g5_plls[i][j].p, i, sama7g5_plls[i][j].c, sama7g5_plls[i][j].l, sama7g5_plls[i][j].f); break; default: continue; } if (IS_ERR(hw)) goto err_free; if (sama7g5_plls[i][j].eid) sama7g5_pmc->chws[sama7g5_plls[i][j].eid] = hw; } } parent_names[0] = "cpupll_divpmcck"; hw = at91_clk_register_master_div(regmap, "mck0", "cpupll_divpmcck", &mck0_layout, &mck0_characteristics, &pmc_mck0_lock, CLK_GET_RATE_NOCACHE); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->chws[PMC_MCK] = hw; parent_names[0] = md_slck_name; parent_names[1] = td_slck_name; parent_names[2] = "mainck"; for (i = 0; i < ARRAY_SIZE(sama7g5_mckx); i++) { u8 num_parents = 3 + sama7g5_mckx[i].ep_count; u32 *mux_table; mux_table = kmalloc_array(num_parents, sizeof(*mux_table), GFP_KERNEL); if (!mux_table) goto err_free; SAMA7G5_INIT_TABLE(mux_table, 3); SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_mckx[i].ep_mux_table, sama7g5_mckx[i].ep_count); SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_mckx[i].ep, sama7g5_mckx[i].ep_count); hw = at91_clk_sama7g5_register_master(regmap, sama7g5_mckx[i].n, num_parents, parent_names, mux_table, &pmc_mckX_lock, sama7g5_mckx[i].id, sama7g5_mckx[i].c, sama7g5_mckx[i].ep_chg_id); if (IS_ERR(hw)) goto err_free; alloc_mem[alloc_mem_size++] = mux_table; if (sama7g5_mckx[i].eid) sama7g5_pmc->chws[sama7g5_mckx[i].eid] = hw; } hw = at91_clk_sama7g5_register_utmi(regmap, "utmick", "main_xtal"); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->chws[PMC_UTMI] = hw; parent_names[0] = md_slck_name; parent_names[1] = td_slck_name; parent_names[2] = "mainck"; parent_names[3] = "syspll_divpmcck"; parent_names[4] = "ddrpll_divpmcck"; parent_names[5] = "imgpll_divpmcck"; parent_names[6] = "baudpll_divpmcck"; parent_names[7] = "audiopll_divpmcck"; parent_names[8] = "ethpll_divpmcck"; for (i = 0; i < 8; i++) { char name[6]; snprintf(name, sizeof(name), "prog%d", i); hw = at91_clk_register_programmable(regmap, name, parent_names, 9, i, &programmable_layout, sama7g5_prog_mux_table); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->pchws[i] = hw; } for (i = 0; i < ARRAY_SIZE(sama7g5_systemck); i++) { hw = at91_clk_register_system(regmap, sama7g5_systemck[i].n, sama7g5_systemck[i].p, sama7g5_systemck[i].id, 0); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->shws[sama7g5_systemck[i].id] = hw; } for (i = 0; i < ARRAY_SIZE(sama7g5_periphck); i++) { hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock, &sama7g5_pcr_layout, sama7g5_periphck[i].n, sama7g5_periphck[i].p, sama7g5_periphck[i].id, &sama7g5_periphck[i].r, sama7g5_periphck[i].chgp ? 0 : INT_MIN, 0); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->phws[sama7g5_periphck[i].id] = hw; } parent_names[0] = md_slck_name; parent_names[1] = td_slck_name; parent_names[2] = "mainck"; for (i = 0; i < ARRAY_SIZE(sama7g5_gck); i++) { u8 num_parents = 3 + sama7g5_gck[i].pp_count; u32 *mux_table; mux_table = kmalloc_array(num_parents, sizeof(*mux_table), GFP_KERNEL); if (!mux_table) goto err_free; SAMA7G5_INIT_TABLE(mux_table, 3); SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_gck[i].pp_mux_table, sama7g5_gck[i].pp_count); SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_gck[i].pp, sama7g5_gck[i].pp_count); hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, &sama7g5_pcr_layout, sama7g5_gck[i].n, parent_names, mux_table, num_parents, sama7g5_gck[i].id, &sama7g5_gck[i].r, sama7g5_gck[i].pp_chg_id); if (IS_ERR(hw)) goto err_free; sama7g5_pmc->ghws[sama7g5_gck[i].id] = hw; alloc_mem[alloc_mem_size++] = mux_table; } of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sama7g5_pmc); return; err_free: if (alloc_mem) { for (i = 0; i < alloc_mem_size; i++) kfree(alloc_mem[i]); kfree(alloc_mem); } kfree(sama7g5_pmc); } /* Some clks are used for a clocksource */ CLK_OF_DECLARE(sama7g5_pmc, "microchip,sama7g5-pmc", sama7g5_pmc_setup);