| /* |
| * (C) Copyright 2013-2015 |
| * NVIDIA Corporation <www.nvidia.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| /* Tegra210 Clock control functions */ |
| |
| #include <common.h> |
| #include <errno.h> |
| #include <asm/io.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/sysctr.h> |
| #include <asm/arch/tegra.h> |
| #include <asm/arch-tegra/clk_rst.h> |
| #include <asm/arch-tegra/timer.h> |
| #include <div64.h> |
| #include <fdtdec.h> |
| |
| /* |
| * 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_PMDACD2T, |
| 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(MEMORY), CLK(DISPLAY), CLK(AUDIO), |
| CLK(CGENERAL), 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_PMDACD2T), |
| TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T), |
| |
| /* 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_NONE), |
| 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 Tegra30+ support 3 new higher freqs, but we map back |
| * to the old T20 freqs. Support for the higher oscillators is TBD. |
| */ |
| 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); |
| reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; |
| /* |
| * 0 = 13MHz, 1 = 16.8MHz, 4 = 19.2MHz, 5 = 38.4MHz, |
| * 8 = 12MHz, 9 = 48MHz, 12 = 26MHz |
| */ |
| if (reg == 5) { |
| debug("OSC_FREQ is 38.4MHz (%d) ...\n", reg); |
| /* Map it to the 5th CLOCK_OSC_ enum, i.e. 4 */ |
| return 4; |
| } |
| |
| /* |
| * Map to most common (T20) freqs (except 38.4, handled above): |
| * 13/16.8 = 0, 19.2 = 1, 12/48 = 2, 26 = 3 |
| */ |
| return reg >> 2; |
| } |
| |
| /* 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 = 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 = 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; |
| } |
| } |
| #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 */ |
| 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 */ |
| 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); |
| |
| /* 7. Enable HW power sequencer for PLLE */ |
| |
| value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC); |
| value &= ~PLLE_MISC_IDDQ_SWCTL; |
| writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC); |
| |
| value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX); |
| value &= ~PLLE_AUX_SS_SWCTL; |
| value &= ~PLLE_AUX_ENABLE_SWCTL; |
| value |= PLLE_AUX_SS_SEQ_INCLUDE; |
| value |= PLLE_AUX_USE_LOCKDET; |
| writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX); |
| |
| /* 8. Wait 1 us */ |
| |
| udelay(1); |
| value |= PLLE_AUX_SEQ_ENABLE; |
| writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX); |
| |
| 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_DISP1, CLOCK_ID_CGENERAL }, |
| { 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, }, |
| }; |
