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-rw-r--r--arch/arm/cpu/tegra124-common/clock.c826
1 files changed, 826 insertions, 0 deletions
diff --git a/arch/arm/cpu/tegra124-common/clock.c b/arch/arm/cpu/tegra124-common/clock.c
new file mode 100644
index 0000000000..739436326e
--- /dev/null
+++ b/arch/arm/cpu/tegra124-common/clock.c
@@ -0,0 +1,826 @@
+/*
+ * (C) Copyright 2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/* Tegra124 Clock control functions */
+
+#include <common.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 Tegra124 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_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_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},
+
+ /* 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 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_I2S1, CLOCK_TYPE_AXPT),
+ TYPE(PERIPHC_I2S2, 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_HDMI, CLOCK_TYPE_PMDACD2T),
+ 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_I2S0, 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_I2S3, CLOCK_TYPE_AXPT),
+ TYPE(PERIPHC_I2S4, 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_DAM0, CLOCK_TYPE_AC2CC3P_TS2),
+ TYPE(PERIPHC_DAM1, CLOCK_TYPE_AC2CC3P_TS2),
+ TYPE(PERIPHC_DAM2, CLOCK_TYPE_AC2CC3P_TS2),
+ 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_ADX0, CLOCK_TYPE_NONE),
+ TYPE(PERIPHC_AMX0, 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_HDMI_AUDIO, CLOCK_TYPE_NONE),
+ TYPE(PERIPHC_CLK72MHZ, CLOCK_TYPE_NONE),
+ TYPE(PERIPHC_ADX1, CLOCK_TYPE_AC2CC3P_TS2),
+ TYPE(PERIPHC_AMX1, CLOCK_TYPE_AC2CC3P_TS2),
+ TYPE(PERIPHC_VIC, CLOCK_TYPE_NONE),
+ TYPE(PERIPHC_7Fh, 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
+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_I2S1,
+ PERIPHC_I2C1,
+ NONE(RESERVED13),
+ PERIPHC_SDMMC1,
+ PERIPHC_SDMMC4,
+
+ /* 16 */
+ NONE(TCW),
+ PERIPHC_PWM,
+ PERIPHC_I2S2,
+ NONE(RESERVED19),
+ PERIPHC_VI,
+ NONE(RESERVED21),
+ NONE(USBD),
+ NONE(ISP),
+
+ /* 24 */
+ NONE(RESERVED24),
+ NONE(RESERVED25),
+ PERIPHC_DISP2,
+ PERIPHC_DISP1,
+ PERIPHC_HOST1X,
+ NONE(VCP),
+ PERIPHC_I2S0,
+ 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,
+ PERIPHC_HDMI,
+ 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_I2S3,
+ PERIPHC_I2S4,
+ PERIPHC_I2C4,
+
+ /* 104 */
+ PERIPHC_SBC5,
+ PERIPHC_SBC6,
+ PERIPHC_AUDIO,
+ NONE(APBIF),
+ PERIPHC_DAM0,
+ PERIPHC_DAM1,
+ PERIPHC_DAM2,
+ 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(DP2),
+ NONE(AMX0),
+ NONE(ADX0),
+ 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(HDMI_AUDIO),
+ NONE(CLK72MHZ),
+ NONE(VIC),
+ NONE(X_RESERVED19),
+ NONE(ADX1),
+ NONE(DPAUX),
+ NONE(SOR0),
+ NONE(X_RESERVED23),
+
+ /* 184 */
+ NONE(GPU),
+ NONE(AMX1),
+ NONE(X_RESERVED26),
+ NONE(X_RESERVED27),
+ NONE(X_RESERVED28),
+ NONE(X_RESERVED29),
+ NONE(X_RESERVED30),
+ NONE(X_RESERVED31),
+};
+
+/*
+ * 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;
+
+ if (reg & 1) /* one of the newer freqs */
+ printf("Warning: OSC_FREQ is unsupported! (%d)\n", reg);
+
+ return reg >> 2; /* Map to most common (T20) freqs */
+}
+
+/* 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 = periph_id_to_internal_id[periph_id];
+ assert(internal_id != -1);
+ if (internal_id >= PERIPHC_VW_FIRST) {
+ internal_id -= PERIPHC_VW_FIRST;
+ return &clkrst->crc_clk_src_vw[internal_id];
+ } else {
+ return &clkrst->crc_clk_src[internal_id];
+ }
+}
+
+/**
+ * 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;
+ enum periphc_internal_id internal_id;
+ int mux;
+
+ assert(clock_periph_id_isvalid(periph_id));
+
+ internal_id = periph_id_to_internal_id[periph_id];
+ assert(periphc_internal_id_isvalid(internal_id));
+
+ type = clock_periph_type[internal_id];
+ assert(clock_type_id_isvalid(type));
+
+ *mux_bits = clock_source[type][CLOCK_MAX_MUX];
+
+ if (type == CLOCK_TYPE_PC2CC3M_T16)
+ *divider_bits = 16;
+ else
+ *divider_bits = 8;
+
+ 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
+ clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)];
+ 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
+ reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)];
+ 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 tegra124 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 */
+
+void clock_early_init(void)
+{
+ struct clk_rst_ctlr *clkrst =
+ (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+
+ tegra30_set_up_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:
+ 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_MISC2: Set dynramp_stepA/B. MISC2 maps to pll_out[1] */
+ writel(0x00561600, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1]);
+
+ /* PLLC_MISC: Set LOCK_ENABLE */
+ writel(0x01000000, &clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc);
+ udelay(2);
+
+ /* PLLD_MISC: Set CLKENABLE, CPCON 12, LFCON 1 */
+ writel(0x40000C10, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);
+ udelay(2);
+}
+
+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_OSC);
+ debug("%s: osc freq is %dHz [0x%08X]\n", __func__, freq, freq);
+
+ /* ARM CNTFRQ */
+ asm("mcr p15, 0, %0, c14, c0, 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);
+}