+++ /dev/null
-/*
- * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Tegra114 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 Tegra114 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_PCMT16,
- CLOCK_TYPE_PDCT,
- CLOCK_TYPE_ACPT,
- CLOCK_TYPE_ASPTE,
- CLOCK_TYPE_PMDACD2T,
- CLOCK_TYPE_PCST,
-
- 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(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 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_PCM),
- TYPE(PERIPHC_PWM, CLOCK_TYPE_PCST), /* only PWM uses b29:28 */
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SBC2, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_SBC3, CLOCK_TYPE_PCMT),
-
- /* 0x08 */
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_I2C1, CLOCK_TYPE_PCMT16),
- TYPE(PERIPHC_I2C5, CLOCK_TYPE_PCMT16),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SBC1, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_DISP1, CLOCK_TYPE_PMDACD2T),
- TYPE(PERIPHC_DISP2, CLOCK_TYPE_PMDACD2T),
-
- /* 0x10 */
- TYPE(PERIPHC_CVE, CLOCK_TYPE_PDCT),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SDMMC1, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_SDMMC2, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_G3D, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_G2D, CLOCK_TYPE_MCPA),
-
- /* 0x18 */
- TYPE(PERIPHC_NDFLASH, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_SDMMC4, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_VFIR, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_EPP, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_MPE, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_MIPI, CLOCK_TYPE_PCMT), /* MIPI base-band HSI */
- TYPE(PERIPHC_UART1, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_UART2, CLOCK_TYPE_PCMT),
-
- /* 0x20 */
- TYPE(PERIPHC_HOST1X, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_TVO, CLOCK_TYPE_PDCT),
- TYPE(PERIPHC_HDMI, CLOCK_TYPE_PMDACD2T),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_TVDAC, CLOCK_TYPE_PDCT),
- TYPE(PERIPHC_I2C2, CLOCK_TYPE_PCMT16),
- TYPE(PERIPHC_EMC, CLOCK_TYPE_MCPT),
-
- /* 0x28 */
- TYPE(PERIPHC_UART3, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_VI, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SBC4, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_I2C3, CLOCK_TYPE_PCMT16),
- TYPE(PERIPHC_SDMMC3, CLOCK_TYPE_PCMT),
-
- /* 0x30 */
- TYPE(PERIPHC_UART4, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_UART5, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_VDE, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_OWR, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_NOR, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_CSITE, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_I2S0, CLOCK_TYPE_AXPT),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
-
- /* 0x38h */ /* Jumps to reg offset 0x3B0h */
- TYPE(PERIPHC_G3D2, CLOCK_TYPE_MCPA),
- TYPE(PERIPHC_MSELECT, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_TSENSOR, CLOCK_TYPE_PCST), /* s/b PCTS */
- TYPE(PERIPHC_I2S3, CLOCK_TYPE_AXPT),
- TYPE(PERIPHC_I2S4, CLOCK_TYPE_AXPT),
- TYPE(PERIPHC_I2C4, CLOCK_TYPE_PCMT16),
- TYPE(PERIPHC_SBC5, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_SBC6, CLOCK_TYPE_PCMT),
-
- /* 0x40 */
- TYPE(PERIPHC_AUDIO, CLOCK_TYPE_ACPT),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_DAM0, CLOCK_TYPE_ACPT),
- TYPE(PERIPHC_DAM1, CLOCK_TYPE_ACPT),
- TYPE(PERIPHC_DAM2, CLOCK_TYPE_ACPT),
- TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_ACTMON, CLOCK_TYPE_PCST), /* MASK 31:30 */
- TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE),
-
- /* 0x48 */
- TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE),
- TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE),
- TYPE(PERIPHC_NANDSPEED, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_I2CSLOW, CLOCK_TYPE_PCST), /* MASK 31:30 */
- TYPE(PERIPHC_SYS, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SPEEDO, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
-
- /* 0x50 */
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_NONE, CLOCK_TYPE_NONE),
- TYPE(PERIPHC_SATAOOB, CLOCK_TYPE_PCMT), /* offset 0x420h */
- TYPE(PERIPHC_SATA, CLOCK_TYPE_PCMT),
- TYPE(PERIPHC_HDA, CLOCK_TYPE_PCMT),
-};
-
-/*
- * 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(RESERVED3),
- NONE(RTC),
- NONE(TMR),
- PERIPHC_UART1,
- PERIPHC_UART2, /* and vfir 0x68 */
-
- /* 8 */
- NONE(GPIO),
- PERIPHC_SDMMC2,
- NONE(SPDIF), /* 0x08 and 0x0c, unclear which to use */
- PERIPHC_I2S1,
- PERIPHC_I2C1,
- PERIPHC_NDFLASH,
- PERIPHC_SDMMC1,
- PERIPHC_SDMMC4,
-
- /* 16 */
- NONE(RESERVED16),
- PERIPHC_PWM,
- PERIPHC_I2S2,
- PERIPHC_EPP,
- PERIPHC_VI,
- PERIPHC_G2D,
- NONE(USBD),
- NONE(ISP),
-
- /* 24 */
- PERIPHC_G3D,
- 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(RESERVED39),
-
- /* 40 */
- NONE(KFUSE),
- NONE(SBC1), /* SBC1, 0x34, is this SPI1? */
- PERIPHC_NOR,
- NONE(RESERVED43),
- PERIPHC_SBC2,
- NONE(RESERVED45),
- PERIPHC_SBC3,
- PERIPHC_I2C5,
-
- /* 48 */
- NONE(DSI),
- PERIPHC_TVO, /* also CVE 0x40 */
- PERIPHC_MIPI,
- PERIPHC_HDMI,
- NONE(CSI),
- PERIPHC_TVDAC,
- PERIPHC_I2C2,
- PERIPHC_UART3,
-
- /* 56 */
- NONE(RESERVED56),
- PERIPHC_EMC,
- NONE(USB2),
- NONE(USB3),
- PERIPHC_MPE,
- PERIPHC_VDE,
- NONE(BSEA),
- NONE(BSEV),
-
- /* Upper word 95:64 */
- PERIPHC_SPEEDO,
- PERIPHC_UART4,
- PERIPHC_UART5,
- PERIPHC_I2C3,
- PERIPHC_SBC4,
- PERIPHC_SDMMC3,
- NONE(PCIE),
- PERIPHC_OWR,
-
- /* 72 */
- NONE(AFI),
- PERIPHC_CSITE,
- NONE(PCIEXCLK),
- NONE(AVPUCQ),
- NONE(RESERVED76),
- NONE(RESERVED77),
- NONE(RESERVED78),
- NONE(DTV),
-
- /* 80 */
- PERIPHC_NANDSPEED,
- PERIPHC_I2CSLOW,
- NONE(DSIB),
- NONE(RESERVED83),
- NONE(IRAMA),
- NONE(IRAMB),
- NONE(IRAMC),
- NONE(IRAMD),
-
- /* 88 */
- NONE(CRAM2),
- NONE(RESERVED89),
- NONE(MDOUBLER),
- NONE(RESERVED91),
- NONE(SUSOUT),
- NONE(RESERVED93),
- NONE(RESERVED94),
- NONE(RESERVED95),
-
- /* V word: 31:0 */
- NONE(CPUG),
- NONE(CPULP),
- PERIPHC_G3D2,
- PERIPHC_MSELECT,
- PERIPHC_TSENSOR,
- PERIPHC_I2S3,
- PERIPHC_I2S4,
- PERIPHC_I2C4,
-
- /* 08 */
- PERIPHC_SBC5,
- PERIPHC_SBC6,
- PERIPHC_AUDIO,
- NONE(APBIF),
- PERIPHC_DAM0,
- PERIPHC_DAM1,
- PERIPHC_DAM2,
- PERIPHC_HDA2CODEC2X,
-
- /* 16 */
- NONE(ATOMICS),
- NONE(RESERVED17),
- NONE(RESERVED18),
- NONE(RESERVED19),
- NONE(RESERVED20),
- NONE(RESERVED21),
- NONE(RESERVED22),
- PERIPHC_ACTMON,
-
- /* 24 */
- NONE(RESERVED24),
- NONE(RESERVED25),
- NONE(RESERVED26),
- NONE(RESERVED27),
- PERIPHC_SATA,
- PERIPHC_HDA,
- NONE(RESERVED30),
- NONE(RESERVED31),
-
- /* W word: 31:0 */
- NONE(HDA2HDMICODEC),
- NONE(RESERVED1_SATACOLD),
- NONE(RESERVED2_PCIERX0),
- NONE(RESERVED3_PCIERX1),
- NONE(RESERVED4_PCIERX2),
- NONE(RESERVED5_PCIERX3),
- NONE(RESERVED6_PCIERX4),
- NONE(RESERVED7_PCIERX5),
-
- /* 40 */
- NONE(CEC),
- NONE(PCIE2_IOBIST),
- NONE(EMC_IOBIST),
- NONE(HDMI_IOBIST),
- NONE(SATA_IOBIST),
- NONE(MIPI_IOBIST),
- NONE(EMC1_IOBIST),
- NONE(XUSB),
-
- /* 48 */
- NONE(CILAB),
- NONE(CILCD),
- NONE(CILE),
- NONE(DSIA_LP),
- NONE(DSIB_LP),
- NONE(RESERVED21_ENTROPY),
- NONE(RESERVED22_W),
- NONE(RESERVED23_W),
-
- /* 56 */
- NONE(RESERVED24_W),
- NONE(AMX0),
- NONE(ADX0),
- NONE(DVFS),
- NONE(XUSB_SS),
- NONE(EMC_DLL),
- NONE(MC1),
- NONE(EMC1),
-};
-
-/*
- * Get the oscillator frequency, from the corresponding hardware configuration
- * field. Note that T30/T114 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_PCMT16)
- *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 tegra114 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_RESERVED3:
- case PERIPH_ID_RESERVED16:
- case PERIPH_ID_RESERVED24:
- case PERIPH_ID_RESERVED35:
- case PERIPH_ID_RESERVED43:
- case PERIPH_ID_RESERVED45:
- case PERIPH_ID_RESERVED56:
- case PERIPH_ID_RESERVED76:
- case PERIPH_ID_RESERVED77:
- case PERIPH_ID_RESERVED78:
- case PERIPH_ID_RESERVED83:
- case PERIPH_ID_RESERVED89:
- case PERIPH_ID_RESERVED91:
- case PERIPH_ID_RESERVED93:
- case PERIPH_ID_RESERVED94:
- case PERIPH_ID_RESERVED95:
- 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 T114 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);
-}
projects / karo-tx-uboot.git / blobdiff