// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2013-2020 * NVIDIA Corporation */ /* Tegra210 Clock control functions */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Clock types that we can use as a source. The Tegra210 has muxes for the * peripheral clocks, and in most cases there are four options for the clock * source. This gives us a clock 'type' and exploits what commonality exists * in the device. * * Letters are obvious, except for T which means CLK_M, and S which means the * clock derived from 32KHz. Beware that CLK_M (also called OSC in the * datasheet) and PLL_M are different things. The former is the basic * clock supplied to the SOC from an external oscillator. The latter is the * memory clock PLL. * * See definitions in clock_id in the header file. */ enum clock_type_id { CLOCK_TYPE_AXPT, /* PLL_A, PLL_X, PLL_P, CLK_M */ CLOCK_TYPE_MCPA, /* and so on */ CLOCK_TYPE_MCPT, CLOCK_TYPE_PCM, CLOCK_TYPE_PCMT, CLOCK_TYPE_PDCT, CLOCK_TYPE_ACPT, CLOCK_TYPE_ASPTE, CLOCK_TYPE_PDD2T, CLOCK_TYPE_PCST, CLOCK_TYPE_DP, CLOCK_TYPE_PC2CC3M, CLOCK_TYPE_PC2CC3S_T, CLOCK_TYPE_PC2CC3M_T, CLOCK_TYPE_PC2CC3M_T16, /* PC2CC3M_T, but w/16-bit divisor (I2C) */ CLOCK_TYPE_MC2CC3P_A, CLOCK_TYPE_M, CLOCK_TYPE_MCPTM2C2C3, CLOCK_TYPE_PC2CC3T_S, CLOCK_TYPE_AC2CC3P_TS2, CLOCK_TYPE_PC01C00_C42C41TC40, CLOCK_TYPE_COUNT, CLOCK_TYPE_NONE = -1, /* invalid clock type */ }; enum { CLOCK_MAX_MUX = 8 /* number of source options for each clock */ }; /* * Clock source mux for each clock type. This just converts our enum into * a list of mux sources for use by the code. * * Note: * The extra column in each clock source array is used to store the mask * bits in its register for the source. */ #define CLK(x) CLOCK_ID_ ## x static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = { { CLK(AUDIO), CLK(XCPU), CLK(PERIPH), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(AUDIO), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(PERIPH), CLK(CGENERAL), CLK(MEMORY), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(PERIPH), CLK(DISPLAY), CLK(CGENERAL), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(AUDIO), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, { CLK(AUDIO), CLK(SFROM32KHZ), CLK(PERIPH), CLK(OSC), CLK(EPCI), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_29}, { CLK(PERIPH), CLK(NONE), CLK(DISPLAY), CLK(NONE), CLK(NONE), CLK(DISPLAY2), CLK(OSC), CLK(NONE), MASK_BITS_31_29}, { CLK(PERIPH), CLK(CGENERAL), CLK(SFROM32KHZ), CLK(OSC), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_28}, /* CLOCK_TYPE_DP */ { CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_28}, /* Additional clock types on Tegra114+ */ /* CLOCK_TYPE_PC2CC3M */ { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_PC2CC3S_T */ { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(SFROM32KHZ), CLK(NONE), CLK(OSC), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_PC2CC3M_T */ { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_PC2CC3M_T, w/16-bit divisor (I2C) */ { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(MEMORY), CLK(NONE), CLK(OSC), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_MC2CC3P_A */ { CLK(MEMORY), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(PERIPH), CLK(NONE), CLK(AUDIO), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_M */ { CLK(MEMORY), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), CLK(NONE), MASK_BITS_31_30}, /* CLOCK_TYPE_MCPTM2C2C3 */ { CLK(MEMORY), CLK(CGENERAL), CLK(PERIPH), CLK(OSC), CLK(MEMORY2), CLK(CGENERAL2), CLK(CGENERAL3), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_PC2CC3T_S */ { CLK(PERIPH), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(OSC), CLK(NONE), CLK(SFROM32KHZ), CLK(NONE), MASK_BITS_31_29}, /* CLOCK_TYPE_AC2CC3P_TS2 */ { CLK(AUDIO), CLK(CGENERAL2), CLK(CGENERAL), CLK(CGENERAL3), CLK(PERIPH), CLK(NONE), CLK(OSC), CLK(SRC2), MASK_BITS_31_29}, /* CLOCK_TYPE_PC01C00_C42C41TC40 */ { CLK(PERIPH), CLK(CGENERAL_1), CLK(CGENERAL_0), CLK(NONE), CLK(CGENERAL4_2), CLK(CGENERAL4_1), CLK(OSC), CLK(CGENERAL4_0), MASK_BITS_31_29}, }; /* * Clock type for each peripheral clock source. We put the name in each * record just so it is easy to match things up */ #define TYPE(name, type) type static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = { /* 0x00 */ TYPE(PERIPHC_I2S2, CLOCK_TYPE_AXPT), TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT), TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT), TYPE(PERIPHC_SPDIF_IN, CLOCK_TYPE_PC2CC3M), TYPE(PERIPHC_PWM, CLOCK_TYPE_PC2CC3S_T), TYPE(PERIPHC_05h, CLOCK_TYPE_NONE), TYPE(PERIPHC_SBC2, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_SBC3, CLOCK_TYPE_PC2CC3M_T), /* 0x08 */ TYPE(PERIPHC_08h, CLOCK_TYPE_NONE), TYPE(PERIPHC_I2C1, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_I2C5, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_0bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_0ch, CLOCK_TYPE_NONE), TYPE(PERIPHC_SBC1, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_DISP1, CLOCK_TYPE_PDD2T), TYPE(PERIPHC_DISP2, CLOCK_TYPE_PDD2T), /* 0x10 */ TYPE(PERIPHC_10h, CLOCK_TYPE_NONE), TYPE(PERIPHC_11h, CLOCK_TYPE_NONE), TYPE(PERIPHC_VI, CLOCK_TYPE_MC2CC3P_A), TYPE(PERIPHC_13h, CLOCK_TYPE_NONE), TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_16h, CLOCK_TYPE_NONE), TYPE(PERIPHC_17h, CLOCK_TYPE_NONE), /* 0x18 */ TYPE(PERIPHC_18h, CLOCK_TYPE_NONE), TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_VFIR, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_1Bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_1Ch, CLOCK_TYPE_NONE), TYPE(PERIPHC_HSI, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_UART1, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_UART2, CLOCK_TYPE_PC2CC3M_T), /* 0x20 */ TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MC2CC3P_A), TYPE(PERIPHC_21h, CLOCK_TYPE_NONE), TYPE(PERIPHC_22h, CLOCK_TYPE_NONE), TYPE(PERIPHC_23h, CLOCK_TYPE_NONE), TYPE(PERIPHC_24h, CLOCK_TYPE_NONE), TYPE(PERIPHC_25h, CLOCK_TYPE_NONE), TYPE(PERIPHC_I2C2, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPTM2C2C3), /* 0x28 */ TYPE(PERIPHC_UART3, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_29h, CLOCK_TYPE_NONE), TYPE(PERIPHC_VI_SENSOR, CLOCK_TYPE_MC2CC3P_A), TYPE(PERIPHC_2bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_2ch, CLOCK_TYPE_NONE), TYPE(PERIPHC_SBC4, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_I2C3, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PC2CC3M_T), /* 0x30 */ TYPE(PERIPHC_UART4, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_UART5, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_VDE, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_OWR, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_NOR, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_CSITE, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_I2S1, CLOCK_TYPE_AXPT), TYPE(PERIPHC_DTV, CLOCK_TYPE_NONE), /* 0x38 */ TYPE(PERIPHC_38h, CLOCK_TYPE_NONE), TYPE(PERIPHC_39h, CLOCK_TYPE_NONE), TYPE(PERIPHC_3ah, CLOCK_TYPE_NONE), TYPE(PERIPHC_3bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_MSENC, CLOCK_TYPE_MC2CC3P_A), TYPE(PERIPHC_TSEC, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_3eh, CLOCK_TYPE_NONE), TYPE(PERIPHC_OSC, CLOCK_TYPE_NONE), /* 0x40 */ TYPE(PERIPHC_40h, CLOCK_TYPE_NONE), /* start with 0x3b0 */ TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PC2CC3T_S), TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT), TYPE(PERIPHC_I2S5, CLOCK_TYPE_AXPT), TYPE(PERIPHC_I2C4, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_SBC5, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_SBC6, CLOCK_TYPE_PC2CC3M_T), /* 0x48 */ TYPE(PERIPHC_AUDIO, CLOCK_TYPE_AC2CC3P_TS2), TYPE(PERIPHC_49h, CLOCK_TYPE_NONE), TYPE(PERIPHC_4ah, CLOCK_TYPE_NONE), TYPE(PERIPHC_4bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_4ch, CLOCK_TYPE_NONE), TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PC2CC3S_T), TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE), /* 0x50 */ TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE), TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE), TYPE(PERIPHC_52h, CLOCK_TYPE_NONE), TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PC2CC3S_T), TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE), TYPE(PERIPHC_55h, CLOCK_TYPE_NONE), TYPE(PERIPHC_56h, CLOCK_TYPE_NONE), TYPE(PERIPHC_57h, CLOCK_TYPE_NONE), /* 0x58 */ TYPE(PERIPHC_58h, CLOCK_TYPE_NONE), TYPE(PERIPHC_59h, CLOCK_TYPE_NONE), TYPE(PERIPHC_5ah, CLOCK_TYPE_NONE), TYPE(PERIPHC_5bh, CLOCK_TYPE_NONE), TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT), TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT), TYPE(PERIPHC_HDA, CLOCK_TYPE_PC2CC3M_T), TYPE(PERIPHC_5fh, CLOCK_TYPE_NONE), /* 0x60 */ TYPE(PERIPHC_XUSB_CORE_HOST, CLOCK_TYPE_NONE), TYPE(PERIPHC_XUSB_FALCON, CLOCK_TYPE_NONE), TYPE(PERIPHC_XUSB_FS, CLOCK_TYPE_NONE), TYPE(PERIPHC_XUSB_CORE_DEV, CLOCK_TYPE_NONE), TYPE(PERIPHC_XUSB_SS, CLOCK_TYPE_NONE), TYPE(PERIPHC_CILAB, CLOCK_TYPE_NONE), TYPE(PERIPHC_CILCD, CLOCK_TYPE_NONE), TYPE(PERIPHC_CILE, CLOCK_TYPE_NONE), /* 0x68 */ TYPE(PERIPHC_DSIA_LP, CLOCK_TYPE_NONE), TYPE(PERIPHC_DSIB_LP, CLOCK_TYPE_NONE), TYPE(PERIPHC_ENTROPY, CLOCK_TYPE_NONE), TYPE(PERIPHC_DVFS_REF, CLOCK_TYPE_NONE), TYPE(PERIPHC_DVFS_SOC, CLOCK_TYPE_NONE), TYPE(PERIPHC_TRACECLKIN, CLOCK_TYPE_NONE), TYPE(PERIPHC_6eh, CLOCK_TYPE_NONE), TYPE(PERIPHC_6fh, CLOCK_TYPE_NONE), /* 0x70 */ TYPE(PERIPHC_EMC_LATENCY, CLOCK_TYPE_NONE), TYPE(PERIPHC_SOC_THERM, CLOCK_TYPE_NONE), TYPE(PERIPHC_72h, CLOCK_TYPE_NONE), TYPE(PERIPHC_73h, CLOCK_TYPE_NONE), TYPE(PERIPHC_74h, CLOCK_TYPE_NONE), TYPE(PERIPHC_75h, CLOCK_TYPE_NONE), TYPE(PERIPHC_VI_SENSOR2, CLOCK_TYPE_NONE), TYPE(PERIPHC_I2C6, CLOCK_TYPE_PC2CC3M_T16), /* 0x78 */ TYPE(PERIPHC_78h, CLOCK_TYPE_NONE), TYPE(PERIPHC_EMC_DLL, CLOCK_TYPE_MCPTM2C2C3), TYPE(PERIPHC_7ah, CLOCK_TYPE_NONE), TYPE(PERIPHC_CLK72MHZ, CLOCK_TYPE_NONE), TYPE(PERIPHC_7ch, CLOCK_TYPE_NONE), TYPE(PERIPHC_7dh, CLOCK_TYPE_NONE), TYPE(PERIPHC_VIC, CLOCK_TYPE_NONE), TYPE(PERIPHC_7Fh, CLOCK_TYPE_NONE), /* 0x80 */ TYPE(PERIPHC_SDMMC_LEGACY_TM, CLOCK_TYPE_NONE), TYPE(PERIPHC_NVDEC, CLOCK_TYPE_NONE), TYPE(PERIPHC_NVJPG, CLOCK_TYPE_NONE), TYPE(PERIPHC_NVENC, CLOCK_TYPE_NONE), TYPE(PERIPHC_84h, CLOCK_TYPE_NONE), TYPE(PERIPHC_85h, CLOCK_TYPE_NONE), TYPE(PERIPHC_86h, CLOCK_TYPE_NONE), TYPE(PERIPHC_87h, CLOCK_TYPE_NONE), /* 0x88 */ TYPE(PERIPHC_88h, CLOCK_TYPE_NONE), TYPE(PERIPHC_89h, CLOCK_TYPE_NONE), TYPE(PERIPHC_DMIC3, CLOCK_TYPE_NONE), TYPE(PERIPHC_APE, CLOCK_TYPE_NONE), TYPE(PERIPHC_QSPI, CLOCK_TYPE_PC01C00_C42C41TC40), TYPE(PERIPHC_VI_I2C, CLOCK_TYPE_PC2CC3M_T16), TYPE(PERIPHC_USB2_HSIC_TRK, CLOCK_TYPE_NONE), TYPE(PERIPHC_PEX_SATA_USB_RX_BYP, CLOCK_TYPE_NONE), /* 0x90 */ TYPE(PERIPHC_MAUD, CLOCK_TYPE_NONE), TYPE(PERIPHC_TSECB, CLOCK_TYPE_NONE), }; /* * This array translates a periph_id to a periphc_internal_id * * Not present/matched up: * uint vi_sensor; _VI_SENSOR_0, 0x1A8 * SPDIF - which is both 0x08 and 0x0c * */ #define NONE(name) (-1) #define OFFSET(name, value) PERIPHC_ ## name #define INTERNAL_ID(id) (id & 0x000000ff) static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = { /* Low word: 31:0 */ NONE(CPU), NONE(COP), NONE(TRIGSYS), NONE(ISPB), NONE(RESERVED4), NONE(TMR), PERIPHC_UART1, PERIPHC_UART2, /* and vfir 0x68 */ /* 8 */ NONE(GPIO), PERIPHC_SDMMC2, PERIPHC_SPDIF_IN, PERIPHC_I2S2, PERIPHC_I2C1, NONE(RESERVED13), PERIPHC_SDMMC1, PERIPHC_SDMMC4, /* 16 */ NONE(TCW), PERIPHC_PWM, PERIPHC_I2S3, NONE(RESERVED19), PERIPHC_VI, NONE(RESERVED21), NONE(USBD), NONE(ISP), /* 24 */ NONE(RESERVED24), NONE(RESERVED25), PERIPHC_DISP2, PERIPHC_DISP1, PERIPHC_HOST1X, NONE(VCP), PERIPHC_I2S1, NONE(CACHE2), /* Middle word: 63:32 */ NONE(MEM), NONE(AHBDMA), NONE(APBDMA), NONE(RESERVED35), NONE(RESERVED36), NONE(STAT_MON), NONE(RESERVED38), NONE(FUSE), /* 40 */ NONE(KFUSE), PERIPHC_SBC1, /* SBCx = SPIx */ PERIPHC_NOR, NONE(RESERVED43), PERIPHC_SBC2, NONE(XIO), PERIPHC_SBC3, PERIPHC_I2C5, /* 48 */ NONE(DSI), NONE(RESERVED49), PERIPHC_HSI, NONE(RESERVED51), NONE(CSI), NONE(RESERVED53), PERIPHC_I2C2, PERIPHC_UART3, /* 56 */ NONE(MIPI_CAL), PERIPHC_EMC, NONE(USB2), NONE(USB3), NONE(RESERVED60), PERIPHC_VDE, NONE(BSEA), NONE(BSEV), /* Upper word 95:64 */ NONE(RESERVED64), PERIPHC_UART4, PERIPHC_UART5, PERIPHC_I2C3, PERIPHC_SBC4, PERIPHC_SDMMC3, NONE(PCIE), PERIPHC_OWR, /* 72 */ NONE(AFI), PERIPHC_CSITE, NONE(PCIEXCLK), NONE(AVPUCQ), NONE(LA), NONE(TRACECLKIN), NONE(SOC_THERM), NONE(DTV), /* 80 */ NONE(RESERVED80), PERIPHC_I2CSLOW, NONE(DSIB), PERIPHC_TSEC, NONE(RESERVED84), NONE(RESERVED85), NONE(RESERVED86), NONE(EMUCIF), /* 88 */ NONE(RESERVED88), NONE(XUSB_HOST), NONE(RESERVED90), PERIPHC_MSENC, NONE(RESERVED92), NONE(RESERVED93), NONE(RESERVED94), NONE(XUSB_DEV), /* V word: 31:0 */ NONE(CPUG), NONE(CPULP), NONE(V_RESERVED2), PERIPHC_MSELECT, NONE(V_RESERVED4), PERIPHC_I2S4, PERIPHC_I2S5, PERIPHC_I2C4, /* 104 */ PERIPHC_SBC5, PERIPHC_SBC6, PERIPHC_AUDIO, NONE(APBIF), NONE(V_RESERVED12), NONE(V_RESERVED13), NONE(V_RESERVED14), PERIPHC_HDA2CODEC2X, /* 112 */ NONE(ATOMICS), NONE(V_RESERVED17), NONE(V_RESERVED18), NONE(V_RESERVED19), NONE(V_RESERVED20), NONE(V_RESERVED21), NONE(V_RESERVED22), PERIPHC_ACTMON, /* 120 */ NONE(EXTPERIPH1), NONE(EXTPERIPH2), NONE(EXTPERIPH3), NONE(OOB), PERIPHC_SATA, PERIPHC_HDA, NONE(TZRAM), NONE(SE), /* W word: 31:0 */ NONE(HDA2HDMICODEC), NONE(SATACOLD), NONE(W_RESERVED2), NONE(W_RESERVED3), NONE(W_RESERVED4), NONE(W_RESERVED5), NONE(W_RESERVED6), NONE(W_RESERVED7), /* 136 */ NONE(CEC), NONE(W_RESERVED9), NONE(W_RESERVED10), NONE(W_RESERVED11), NONE(W_RESERVED12), NONE(W_RESERVED13), NONE(XUSB_PADCTL), NONE(W_RESERVED15), /* 144 */ NONE(W_RESERVED16), NONE(W_RESERVED17), NONE(W_RESERVED18), NONE(W_RESERVED19), NONE(W_RESERVED20), NONE(ENTROPY), NONE(DDS), NONE(W_RESERVED23), /* 152 */ NONE(W_RESERVED24), NONE(W_RESERVED25), NONE(W_RESERVED26), NONE(DVFS), NONE(XUSB_SS), NONE(W_RESERVED29), NONE(W_RESERVED30), NONE(W_RESERVED31), /* X word: 31:0 */ NONE(SPARE), NONE(X_RESERVED1), NONE(X_RESERVED2), NONE(X_RESERVED3), NONE(CAM_MCLK), NONE(CAM_MCLK2), PERIPHC_I2C6, NONE(X_RESERVED7), /* 168 */ NONE(X_RESERVED8), NONE(X_RESERVED9), NONE(X_RESERVED10), NONE(VIM2_CLK), NONE(X_RESERVED12), NONE(X_RESERVED13), NONE(EMC_DLL), NONE(X_RESERVED15), /* 176 */ NONE(X_RESERVED16), NONE(CLK72MHZ), NONE(VIC), NONE(X_RESERVED19), NONE(X_RESERVED20), NONE(DPAUX), NONE(SOR0), NONE(X_RESERVED23), /* 184 */ NONE(GPU), NONE(X_RESERVED25), NONE(X_RESERVED26), NONE(X_RESERVED27), NONE(X_RESERVED28), NONE(X_RESERVED29), NONE(X_RESERVED30), NONE(X_RESERVED31), /* Y: 192 (192 - 223) */ NONE(Y_RESERVED0), PERIPHC_SDMMC_LEGACY_TM, PERIPHC_NVDEC, PERIPHC_NVJPG, NONE(Y_RESERVED4), PERIPHC_DMIC3, /* 197 */ PERIPHC_APE, /* 198 */ NONE(Y_RESERVED7), /* 200 */ NONE(Y_RESERVED8), NONE(Y_RESERVED9), NONE(Y_RESERVED10), NONE(Y_RESERVED11), NONE(Y_RESERVED12), NONE(Y_RESERVED13), NONE(Y_RESERVED14), NONE(Y_RESERVED15), /* 208 */ PERIPHC_VI_I2C, /* 208 */ NONE(Y_RESERVED17), NONE(Y_RESERVED18), PERIPHC_QSPI, /* 211 */ NONE(Y_RESERVED20), NONE(Y_RESERVED21), NONE(Y_RESERVED22), NONE(Y_RESERVED23), /* 216 */ NONE(Y_RESERVED24), NONE(Y_RESERVED25), NONE(Y_RESERVED26), PERIPHC_NVENC, /* 219 */ NONE(Y_RESERVED28), NONE(Y_RESERVED29), NONE(Y_RESERVED30), NONE(Y_RESERVED31), }; /* * PLL divider shift/mask tables for all PLL IDs. */ struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = { /* * NOTE: If kcp_mask/kvco_mask == 0, they're not used in that PLL (PLLC, etc.) * If lock_ena or lock_det are >31, they're not used in that PLL (PLLC, etc.) */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, .lock_ena = 32, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLC */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, .lock_ena = 4, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLM */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, .lock_ena = 18, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 3, .kvco_shift = 2, .kvco_mask = 1 }, /* PLLP */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, .lock_ena = 28, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLA */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 16, .p_mask = 0x1F, .lock_ena = 29, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLU */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 11, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x07, .lock_ena = 18, .lock_det = 27, .kcp_shift = 23, .kcp_mask = 3, .kvco_shift = 22, .kvco_mask = 1 }, /* PLLD */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F, .lock_ena = 18, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLX */ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 0, .p_mask = 0, .lock_ena = 9, .lock_det = 11, .kcp_shift = 6, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 }, /* PLLE */ { .m_shift = 0, .m_mask = 0, .n_shift = 0, .n_mask = 0, .p_shift = 0, .p_mask = 0, .lock_ena = 0, .lock_det = 0, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 }, /* PLLS (gone)*/ { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF, .p_shift = 19, .p_mask = 0x1F, .lock_ena = 30, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 }, /* PLLDP */ }; /* * Get the oscillator frequency, from the corresponding hardware configuration * field. Note that T30+ supports 3 new higher freqs. */ enum clock_osc_freq clock_get_osc_freq(void) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 reg; reg = readl(&clkrst->crc_osc_ctrl); return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; } /* Returns a pointer to the clock source register for a peripheral */ u32 *get_periph_source_reg(enum periph_id periph_id) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; enum periphc_internal_id internal_id; /* Coresight is a special case */ if (periph_id == PERIPH_ID_CSI) return &clkrst->crc_clk_src[PERIPH_ID_CSI+1]; assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT); internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]); assert(internal_id != -1); if (internal_id < PERIPHC_VW_FIRST) /* L, H, U */ return &clkrst->crc_clk_src[internal_id]; if (internal_id < PERIPHC_X_FIRST) { /* VW */ internal_id -= PERIPHC_VW_FIRST; return &clkrst->crc_clk_src_vw[internal_id]; } if (internal_id < PERIPHC_Y_FIRST) { /* X */ internal_id -= PERIPHC_X_FIRST; return &clkrst->crc_clk_src_x[internal_id]; } /* Y */ internal_id -= PERIPHC_Y_FIRST; return &clkrst->crc_clk_src_y[internal_id]; } int get_periph_clock_info(enum periph_id periph_id, int *mux_bits, int *divider_bits, int *type) { enum periphc_internal_id internal_id; if (!clock_periph_id_isvalid(periph_id)) return -1; internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]); if (!periphc_internal_id_isvalid(internal_id)) return -1; *type = clock_periph_type[internal_id]; if (!clock_type_id_isvalid(*type)) return -1; *mux_bits = clock_source[*type][CLOCK_MAX_MUX]; if (*type == CLOCK_TYPE_PC2CC3M_T16) *divider_bits = 16; else *divider_bits = 8; return 0; } enum clock_id get_periph_clock_id(enum periph_id periph_id, int source) { enum periphc_internal_id internal_id; int type; if (!clock_periph_id_isvalid(periph_id)) return CLOCK_ID_NONE; internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]); if (!periphc_internal_id_isvalid(internal_id)) return CLOCK_ID_NONE; type = clock_periph_type[internal_id]; if (!clock_type_id_isvalid(type)) return CLOCK_ID_NONE; return clock_source[type][source]; } /** * Given a peripheral ID and the required source clock, this returns which * value should be programmed into the source mux for that peripheral. * * There is special code here to handle the one source type with 5 sources. * * @param periph_id peripheral to start * @param source PLL id of required parent clock * @param mux_bits Set to number of bits in mux register: 2 or 4 * @param divider_bits Set to number of divider bits (8 or 16) * Return: mux value (0-4, or -1 if not found) */ int get_periph_clock_source(enum periph_id periph_id, enum clock_id parent, int *mux_bits, int *divider_bits) { enum clock_type_id type; int mux, err; err = get_periph_clock_info(periph_id, mux_bits, divider_bits, &type); assert(!err); for (mux = 0; mux < CLOCK_MAX_MUX; mux++) if (clock_source[type][mux] == parent) return mux; /* if we get here, either us or the caller has made a mistake */ printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id, parent); return -1; } void clock_set_enable(enum periph_id periph_id, int enable) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 *clk; u32 reg; /* Enable/disable the clock to this peripheral */ assert(clock_periph_id_isvalid(periph_id)); if ((int)periph_id < (int)PERIPH_ID_VW_FIRST) clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; else if ((int)periph_id < (int)PERIPH_ID_X_FIRST) clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)]; else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST) clk = &clkrst->crc_clk_out_enb_x; else clk = &clkrst->crc_clk_out_enb_y; reg = readl(clk); if (enable) reg |= PERIPH_MASK(periph_id); else reg &= ~PERIPH_MASK(periph_id); writel(reg, clk); } void reset_set_enable(enum periph_id periph_id, int enable) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 *reset; u32 reg; /* Enable/disable reset to the peripheral */ assert(clock_periph_id_isvalid(periph_id)); if (periph_id < PERIPH_ID_VW_FIRST) reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; else if ((int)periph_id < (int)PERIPH_ID_X_FIRST) reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)]; else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST) reset = &clkrst->crc_rst_devices_x; else reset = &clkrst->crc_rst_devices_y; reg = readl(reset); if (enable) reg |= PERIPH_MASK(periph_id); else reg &= ~PERIPH_MASK(periph_id); writel(reg, reset); } #ifdef CONFIG_OF_CONTROL /* * Convert a device tree clock ID to our peripheral ID. They are mostly * the same but we are very cautious so we check that a valid clock ID is * provided. * * @param clk_id Clock ID according to tegra210 device tree binding * Return: peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid */ enum periph_id clk_id_to_periph_id(int clk_id) { if (clk_id > PERIPH_ID_COUNT) return PERIPH_ID_NONE; switch (clk_id) { case PERIPH_ID_RESERVED4: case PERIPH_ID_RESERVED25: case PERIPH_ID_RESERVED35: case PERIPH_ID_RESERVED36: case PERIPH_ID_RESERVED38: case PERIPH_ID_RESERVED43: case PERIPH_ID_RESERVED49: case PERIPH_ID_RESERVED53: case PERIPH_ID_RESERVED64: case PERIPH_ID_RESERVED84: case PERIPH_ID_RESERVED85: case PERIPH_ID_RESERVED86: case PERIPH_ID_RESERVED88: case PERIPH_ID_RESERVED90: case PERIPH_ID_RESERVED92: case PERIPH_ID_RESERVED93: case PERIPH_ID_RESERVED94: case PERIPH_ID_V_RESERVED2: case PERIPH_ID_V_RESERVED4: case PERIPH_ID_V_RESERVED17: case PERIPH_ID_V_RESERVED18: case PERIPH_ID_V_RESERVED19: case PERIPH_ID_V_RESERVED20: case PERIPH_ID_V_RESERVED21: case PERIPH_ID_V_RESERVED22: case PERIPH_ID_W_RESERVED2: case PERIPH_ID_W_RESERVED3: case PERIPH_ID_W_RESERVED4: case PERIPH_ID_W_RESERVED5: case PERIPH_ID_W_RESERVED6: case PERIPH_ID_W_RESERVED7: case PERIPH_ID_W_RESERVED9: case PERIPH_ID_W_RESERVED10: case PERIPH_ID_W_RESERVED11: case PERIPH_ID_W_RESERVED12: case PERIPH_ID_W_RESERVED13: case PERIPH_ID_W_RESERVED15: case PERIPH_ID_W_RESERVED16: case PERIPH_ID_W_RESERVED17: case PERIPH_ID_W_RESERVED18: case PERIPH_ID_W_RESERVED19: case PERIPH_ID_W_RESERVED20: case PERIPH_ID_W_RESERVED23: case PERIPH_ID_W_RESERVED29: case PERIPH_ID_W_RESERVED30: case PERIPH_ID_W_RESERVED31: return PERIPH_ID_NONE; default: return clk_id; } } /* * Convert a device tree clock ID to our PLL ID. * * @param clk_id Clock ID according to tegra210 device tree binding * Return: clock ID, or CLOCK_ID_NONE if the clock ID is invalid */ enum clock_id clk_id_to_pll_id(int clk_id) { switch (clk_id) { case TEGRA210_CLK_PLL_C: return CLOCK_ID_CGENERAL; case TEGRA210_CLK_PLL_M: return CLOCK_ID_MEMORY; case TEGRA210_CLK_PLL_P: return CLOCK_ID_PERIPH; case TEGRA210_CLK_PLL_A: return CLOCK_ID_AUDIO; case TEGRA210_CLK_PLL_U: return CLOCK_ID_USB; case TEGRA210_CLK_PLL_D: case TEGRA210_CLK_PLL_D_OUT0: return CLOCK_ID_DISPLAY; case TEGRA210_CLK_PLL_X: return CLOCK_ID_XCPU; case TEGRA210_CLK_PLL_E: return CLOCK_ID_EPCI; case TEGRA210_CLK_CLK_32K: return CLOCK_ID_32KHZ; case TEGRA210_CLK_CLK_M: return CLOCK_ID_CLK_M; default: return CLOCK_ID_NONE; } } #endif /* CONFIG_OF_CONTROL */ /* * T210 redefines PLLP_OUT2 as PLLP_VCO/DIVP, so do different OUT1-4 setup here. * PLLP_BASE/MISC/etc. is already set up for 408MHz in the BootROM. */ void tegra210_setup_pllp(void) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 reg; /* Set PLLP_OUT1, 3 & 4 freqs to 9.6, 102 & 204MHz */ /* OUT1 */ /* Assert RSTN before enable */ reg = PLLP_OUT1_RSTN_EN; writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]); /* Set divisor and reenable */ reg = (IN_408_OUT_9_6_DIVISOR << PLLP_OUT1_RATIO) | PLLP_OUT1_OVR | PLLP_OUT1_CLKEN | PLLP_OUT1_RSTN_DIS; writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]); /* OUT3, 4 */ /* Assert RSTN before enable */ reg = PLLP_OUT4_RSTN_EN | PLLP_OUT3_RSTN_EN; writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]); /* Set divisor and reenable */ reg = (IN_408_OUT_204_DIVISOR << PLLP_OUT4_RATIO) | PLLP_OUT4_OVR | PLLP_OUT4_CLKEN | PLLP_OUT4_RSTN_DIS | (IN_408_OUT_102_DIVISOR << PLLP_OUT3_RATIO) | PLLP_OUT3_OVR | PLLP_OUT3_CLKEN | PLLP_OUT3_RSTN_DIS; writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]); /* * NOTE: If you want to change PLLP_OUT2 away from 204MHz, * you can change PLLP_BASE DIVP here. Currently defaults * to 1, which is 2^1, or 2, so PLLP_OUT2 is 204MHz. * See Table 13 in section 5.1.4 in T210 TRM for more info. */ } void clock_early_init(void) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; struct clk_pll_info *pllinfo = &tegra_pll_info_table[CLOCK_ID_DISPLAY]; u32 data; tegra210_setup_pllp(); /* * PLLC output frequency set to 600Mhz * PLLD output frequency set to 925Mhz */ switch (clock_get_osc_freq()) { case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */ case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */ clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8); clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12); break; case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */ clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8); clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12); break; case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */ case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */ clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8); clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12); break; case CLOCK_OSC_FREQ_19_2: clock_set_rate(CLOCK_ID_CGENERAL, 125, 4, 0, 0); clock_set_rate(CLOCK_ID_DISPLAY, 96, 2, 0, 12); break; case CLOCK_OSC_FREQ_38_4: clock_set_rate(CLOCK_ID_CGENERAL, 125, 8, 0, 0); clock_set_rate(CLOCK_ID_DISPLAY, 96, 4, 0, 0); break; default: /* * These are not supported. It is too early to print a * message and the UART likely won't work anyway due to the * oscillator being wrong. */ break; } /* PLLC_MISC1: Turn IDDQ off. NOTE: T210 PLLC_MISC_1 maps to pll_misc */ clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc, (1 << PLLC_IDDQ)); udelay(2); /* * PLLC_MISC: Take PLLC out of reset. NOTE: T210 PLLC_MISC maps * to pll_out[1] */ clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1], (1 << PLLC_RESET)); udelay(2); /* PLLD_MISC: Set CLKENABLE and LOCK_DETECT bits */ data = (1 << PLLD_ENABLE_CLK) | (1 << pllinfo->lock_ena); writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc); udelay(2); } unsigned int clk_m_get_rate(unsigned parent_rate) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 value, div; value = readl(&clkrst->crc_spare_reg0); div = ((value >> 2) & 0x3) + 1; return parent_rate / div; } void arch_timer_init(void) { struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE; u32 freq, val; freq = clock_get_rate(CLOCK_ID_CLK_M); debug("%s: clk_m freq is %dHz [0x%08X]\n", __func__, freq, freq); if (current_el() == 3) asm("msr cntfrq_el0, %0\n" : : "r" (freq)); /* Only Tegra114+ has the System Counter regs */ debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq); writel(freq, &sysctr->cntfid0); val = readl(&sysctr->cntcr); val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG; writel(val, &sysctr->cntcr); debug("%s: TSC CNTCR = 0x%08X\n", __func__, val); } #define PLLREFE_MISC 0x4c8 #define PLLREFE_MISC_LOCK BIT(27) #define PLLREFE_MISC_IDDQ BIT(24) #define PLLREFE_BASE 0x4c4 #define PLLREFE_BASE_BYPASS BIT(31) #define PLLREFE_BASE_ENABLE BIT(30) #define PLLREFE_BASE_REF_DIS BIT(29) #define PLLREFE_BASE_KCP(kcp) (((kcp) & 0x3) << 27) #define PLLREFE_BASE_KVCO BIT(26) #define PLLREFE_BASE_DIVP(p) (((p) & 0x1f) << 16) #define PLLREFE_BASE_DIVN(n) (((n) & 0xff) << 8) #define PLLREFE_BASE_DIVM(m) (((m) & 0xff) << 0) static int tegra_pllref_enable(void) { u32 value; unsigned long start; /* * This sequence comes from Tegra X1 TRM section "Cold Boot, with no * Recovery Mode or Boot from USB", sub-section "PLLREFE". */ value = readl(NV_PA_CLK_RST_BASE + PLLREFE_MISC); value &= ~PLLREFE_MISC_IDDQ; writel(value, NV_PA_CLK_RST_BASE + PLLREFE_MISC); udelay(5); value = PLLREFE_BASE_ENABLE | PLLREFE_BASE_KCP(0) | PLLREFE_BASE_DIVP(0) | PLLREFE_BASE_DIVN(0x41) | PLLREFE_BASE_DIVM(4); writel(value, NV_PA_CLK_RST_BASE + PLLREFE_BASE); debug("waiting for pllrefe lock\n"); start = get_timer(0); while (get_timer(start) < 250) { value = readl(NV_PA_CLK_RST_BASE + PLLREFE_MISC); if (value & PLLREFE_MISC_LOCK) break; } if (!(value & PLLREFE_MISC_LOCK)) { debug(" timeout\n"); return -ETIMEDOUT; } debug(" done\n"); return 0; } #define PLLE_SS_CNTL 0x68 #define PLLE_SS_CNTL_SSCINCINTR(x) (((x) & 0x3f) << 24) #define PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16) #define PLLE_SS_CNTL_SSCINVERT (1 << 15) #define PLLE_SS_CNTL_SSCCENTER (1 << 14) #define PLLE_SS_CNTL_SSCBYP (1 << 12) #define PLLE_SS_CNTL_INTERP_RESET (1 << 11) #define PLLE_SS_CNTL_BYPASS_SS (1 << 10) #define PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0) #define PLLE_BASE 0x0e8 #define PLLE_BASE_ENABLE (1 << 31) #define PLLE_BASE_PLDIV_CML(x) (((x) & 0x1f) << 24) #define PLLE_BASE_NDIV(x) (((x) & 0xff) << 8) #define PLLE_BASE_MDIV(x) (((x) & 0xff) << 0) #define PLLE_MISC 0x0ec #define PLLE_MISC_IDDQ_SWCTL (1 << 14) #define PLLE_MISC_IDDQ_OVERRIDE_VALUE (1 << 13) #define PLLE_MISC_LOCK (1 << 11) #define PLLE_PTS (1 << 8) #define PLLE_MISC_KCP(x) (((x) & 0x3) << 6) #define PLLE_MISC_VREG_CTRL(x) (((x) & 0x3) << 2) #define PLLE_MISC_KVCO (1 << 0) #define PLLE_AUX 0x48c #define PLLE_AUX_SS_SEQ_INCLUDE (1 << 31) #define PLLE_AUX_REF_SEL_PLLREFE (1 << 28) #define PLLE_AUX_SEQ_ENABLE (1 << 24) #define PLLE_AUX_SS_SWCTL (1 << 6) #define PLLE_AUX_ENABLE_SWCTL (1 << 4) #define PLLE_AUX_USE_LOCKDET (1 << 3) int tegra_plle_enable(void) { u32 value; unsigned long start; /* PLLREF feeds PLLE */ tegra_pllref_enable(); /* * This sequence comes from Tegra X1 TRM section "Cold Boot, with no * Recovery Mode or Boot from USB", sub-section "PLLEs". */ /* 1. Select XTAL as the source */ value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX); value &= ~PLLE_AUX_REF_SEL_PLLREFE; writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX); value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); value &= ~PLLE_MISC_IDDQ_OVERRIDE_VALUE; writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); /* 2. Wait 5 us */ udelay(5); /* * 3. Program the following registers to generate a low jitter 100MHz * clock. */ value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); value &= ~PLLE_BASE_PLDIV_CML(0x1f); value &= ~PLLE_BASE_NDIV(0xff); value &= ~PLLE_BASE_MDIV(0xff); value |= PLLE_BASE_PLDIV_CML(0xe); value |= PLLE_BASE_NDIV(0x7d); value |= PLLE_BASE_MDIV(2); writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); value |= PLLE_PTS; value &= ~PLLE_MISC_KCP(3); value &= ~PLLE_MISC_VREG_CTRL(3); value &= ~PLLE_MISC_KVCO; writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE); value |= PLLE_BASE_ENABLE; writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE); /* 4. Wait for LOCK */ debug("waiting for plle lock\n"); start = get_timer(0); while (get_timer(start) < 250) { value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); if (value & PLLE_MISC_LOCK) break; } if (!(value & PLLE_MISC_LOCK)) { debug(" timeout\n"); return -ETIMEDOUT; } debug(" done\n"); /* 5. Enable SSA */ value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); value &= ~PLLE_SS_CNTL_SSCINC(0xff); value |= PLLE_SS_CNTL_SSCINC(1); value &= ~PLLE_SS_CNTL_SSCINCINTR(0x3f); value |= PLLE_SS_CNTL_SSCINCINTR(0x23); value &= ~PLLE_SS_CNTL_SSCMAX(0x1fff); value |= PLLE_SS_CNTL_SSCMAX(0x21); value &= ~PLLE_SS_CNTL_SSCINVERT; value &= ~PLLE_SS_CNTL_SSCCENTER; value &= ~PLLE_SS_CNTL_BYPASS_SS; value &= ~PLLE_SS_CNTL_SSCBYP; writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); /* 6. Wait 300 ns */ udelay(1); value &= ~PLLE_SS_CNTL_INTERP_RESET; writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL); return 0; } struct periph_clk_init periph_clk_init_table[] = { { PERIPH_ID_SBC1, CLOCK_ID_PERIPH }, { PERIPH_ID_SBC2, CLOCK_ID_PERIPH }, { PERIPH_ID_SBC3, CLOCK_ID_PERIPH }, { PERIPH_ID_SBC4, CLOCK_ID_PERIPH }, { PERIPH_ID_SBC5, CLOCK_ID_PERIPH }, { PERIPH_ID_SBC6, CLOCK_ID_PERIPH }, { PERIPH_ID_HOST1X, CLOCK_ID_PERIPH }, { PERIPH_ID_SDMMC1, CLOCK_ID_PERIPH }, { PERIPH_ID_SDMMC2, CLOCK_ID_PERIPH }, { PERIPH_ID_SDMMC3, CLOCK_ID_PERIPH }, { PERIPH_ID_SDMMC4, CLOCK_ID_PERIPH }, { PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ }, { PERIPH_ID_I2C1, CLOCK_ID_PERIPH }, { PERIPH_ID_I2C2, CLOCK_ID_PERIPH }, { PERIPH_ID_I2C3, CLOCK_ID_PERIPH }, { PERIPH_ID_I2C4, CLOCK_ID_PERIPH }, { PERIPH_ID_I2C5, CLOCK_ID_PERIPH }, { PERIPH_ID_I2C6, CLOCK_ID_PERIPH }, { -1, }, };