From 150c24936b70ce36e11069038ba8e955704cab3a Mon Sep 17 00:00:00 2001 From: Tom Warren Date: Wed, 19 Sep 2012 15:50:56 -0700 Subject: Tegra20: Move some include files to arch-tegra for sharing with Tegra30 The move is pretty straight-forward. ap20.h and tegra20.h were renamed to ap.h and tegra.h. Some files remain in arch-tegra20 but 'include' a file in 'arch-tegra' with #defines & structs that will be common between T20 and T30 HW. HW-specific #defines, etc. stay in the 'arch-tegra20' 'root' file. All boards build OK w/MAKEALL -s tegra20. Checkpatch.pl runs clean. Seaboard works OK. Signed-off-by: Tom Warren --- arch/arm/include/asm/arch-tegra20/clock.h | 388 +----------------------------- 1 file changed, 5 insertions(+), 383 deletions(-) (limited to 'arch/arm/include/asm/arch-tegra20/clock.h') diff --git a/arch/arm/include/asm/arch-tegra20/clock.h b/arch/arm/include/asm/arch-tegra20/clock.h index ff83bbf293..f592b9550e 100644 --- a/arch/arm/include/asm/arch-tegra20/clock.h +++ b/arch/arm/include/asm/arch-tegra20/clock.h @@ -19,389 +19,11 @@ * MA 02111-1307 USA */ -/* Tegra2 clock control functions */ +/* Tegra20 clock control functions */ -#ifndef _CLOCK_H -#define _CLOCK_H +#ifndef _TEGRA20_CLOCK_H +#define _TEGRA20_CLOCK_H -/* Set of oscillator frequencies supported in the internal API. */ -enum clock_osc_freq { - /* All in MHz, so 13_0 is 13.0MHz */ - CLOCK_OSC_FREQ_13_0, - CLOCK_OSC_FREQ_19_2, - CLOCK_OSC_FREQ_12_0, - CLOCK_OSC_FREQ_26_0, +#include - CLOCK_OSC_FREQ_COUNT, -}; - -/* The PLLs supported by the hardware */ -enum clock_id { - CLOCK_ID_FIRST, - CLOCK_ID_CGENERAL = CLOCK_ID_FIRST, - CLOCK_ID_MEMORY, - CLOCK_ID_PERIPH, - CLOCK_ID_AUDIO, - CLOCK_ID_USB, - CLOCK_ID_DISPLAY, - - /* now the simple ones */ - CLOCK_ID_FIRST_SIMPLE, - CLOCK_ID_XCPU = CLOCK_ID_FIRST_SIMPLE, - CLOCK_ID_EPCI, - CLOCK_ID_SFROM32KHZ, - - /* These are the base clocks (inputs to the Tegra SOC) */ - CLOCK_ID_32KHZ, - CLOCK_ID_OSC, - - CLOCK_ID_COUNT, /* number of clocks */ - CLOCK_ID_NONE = -1, -}; - -/* The clocks supported by the hardware */ -enum periph_id { - PERIPH_ID_FIRST, - - /* Low word: 31:0 */ - PERIPH_ID_CPU = PERIPH_ID_FIRST, - PERIPH_ID_RESERVED1, - PERIPH_ID_RESERVED2, - PERIPH_ID_AC97, - PERIPH_ID_RTC, - PERIPH_ID_TMR, - PERIPH_ID_UART1, - PERIPH_ID_UART2, - - /* 8 */ - PERIPH_ID_GPIO, - PERIPH_ID_SDMMC2, - PERIPH_ID_SPDIF, - PERIPH_ID_I2S1, - PERIPH_ID_I2C1, - PERIPH_ID_NDFLASH, - PERIPH_ID_SDMMC1, - PERIPH_ID_SDMMC4, - - /* 16 */ - PERIPH_ID_TWC, - PERIPH_ID_PWM, - PERIPH_ID_I2S2, - PERIPH_ID_EPP, - PERIPH_ID_VI, - PERIPH_ID_2D, - PERIPH_ID_USBD, - PERIPH_ID_ISP, - - /* 24 */ - PERIPH_ID_3D, - PERIPH_ID_IDE, - PERIPH_ID_DISP2, - PERIPH_ID_DISP1, - PERIPH_ID_HOST1X, - PERIPH_ID_VCP, - PERIPH_ID_RESERVED30, - PERIPH_ID_CACHE2, - - /* Middle word: 63:32 */ - PERIPH_ID_MEM, - PERIPH_ID_AHBDMA, - PERIPH_ID_APBDMA, - PERIPH_ID_RESERVED35, - PERIPH_ID_KBC, - PERIPH_ID_STAT_MON, - PERIPH_ID_PMC, - PERIPH_ID_FUSE, - - /* 40 */ - PERIPH_ID_KFUSE, - PERIPH_ID_SBC1, - PERIPH_ID_SNOR, - PERIPH_ID_SPI1, - PERIPH_ID_SBC2, - PERIPH_ID_XIO, - PERIPH_ID_SBC3, - PERIPH_ID_DVC_I2C, - - /* 48 */ - PERIPH_ID_DSI, - PERIPH_ID_TVO, - PERIPH_ID_MIPI, - PERIPH_ID_HDMI, - PERIPH_ID_CSI, - PERIPH_ID_TVDAC, - PERIPH_ID_I2C2, - PERIPH_ID_UART3, - - /* 56 */ - PERIPH_ID_RESERVED56, - PERIPH_ID_EMC, - PERIPH_ID_USB2, - PERIPH_ID_USB3, - PERIPH_ID_MPE, - PERIPH_ID_VDE, - PERIPH_ID_BSEA, - PERIPH_ID_BSEV, - - /* Upper word 95:64 */ - PERIPH_ID_SPEEDO, - PERIPH_ID_UART4, - PERIPH_ID_UART5, - PERIPH_ID_I2C3, - PERIPH_ID_SBC4, - PERIPH_ID_SDMMC3, - PERIPH_ID_PCIE, - PERIPH_ID_OWR, - - /* 72 */ - PERIPH_ID_AFI, - PERIPH_ID_CORESIGHT, - PERIPH_ID_RESERVED74, - PERIPH_ID_AVPUCQ, - PERIPH_ID_RESERVED76, - PERIPH_ID_RESERVED77, - PERIPH_ID_RESERVED78, - PERIPH_ID_RESERVED79, - - /* 80 */ - PERIPH_ID_RESERVED80, - PERIPH_ID_RESERVED81, - PERIPH_ID_RESERVED82, - PERIPH_ID_RESERVED83, - PERIPH_ID_IRAMA, - PERIPH_ID_IRAMB, - PERIPH_ID_IRAMC, - PERIPH_ID_IRAMD, - - /* 88 */ - PERIPH_ID_CRAM2, - - PERIPH_ID_COUNT, - PERIPH_ID_NONE = -1, -}; - -/* Converts a clock number to a clock register: 0=L, 1=H, 2=U */ -#define PERIPH_REG(id) ((id) >> 5) - -/* Mask value for a clock (within PERIPH_REG(id)) */ -#define PERIPH_MASK(id) (1 << ((id) & 0x1f)) - -/* return 1 if a PLL ID is in range, and not a simple PLL */ -#define clock_id_is_pll(id) ((id) >= CLOCK_ID_FIRST && \ - (id) < CLOCK_ID_FIRST_SIMPLE) - -/* PLL stabilization delay in usec */ -#define CLOCK_PLL_STABLE_DELAY_US 300 - -/* return the current oscillator clock frequency */ -enum clock_osc_freq clock_get_osc_freq(void); - -/** - * Start PLL using the provided configuration parameters. - * - * @param id clock id - * @param divm input divider - * @param divn feedback divider - * @param divp post divider 2^n - * @param cpcon charge pump setup control - * @param lfcon loop filter setup control - * - * @returns monotonic time in us that the PLL will be stable - */ -unsigned long clock_start_pll(enum clock_id id, u32 divm, u32 divn, - u32 divp, u32 cpcon, u32 lfcon); - -/** - * Read low-level parameters of a PLL. - * - * @param id clock id to read (note: USB is not supported) - * @param divm returns input divider - * @param divn returns feedback divider - * @param divp returns post divider 2^n - * @param cpcon returns charge pump setup control - * @param lfcon returns loop filter setup control - * - * @returns 0 if ok, -1 on error (invalid clock id) - */ -int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn, - u32 *divp, u32 *cpcon, u32 *lfcon); - -/* - * Enable a clock - * - * @param id clock id - */ -void clock_enable(enum periph_id clkid); - -/* - * Disable a clock - * - * @param id clock id - */ -void clock_disable(enum periph_id clkid); - -/* - * Set whether a clock is enabled or disabled. - * - * @param id clock id - * @param enable 1 to enable, 0 to disable - */ -void clock_set_enable(enum periph_id clkid, int enable); - -/** - * Reset a peripheral. This puts it in reset, waits for a delay, then takes - * it out of reset and waits for th delay again. - * - * @param periph_id peripheral to reset - * @param us_delay time to delay in microseconds - */ -void reset_periph(enum periph_id periph_id, int us_delay); - -/** - * Put a peripheral into or out of reset. - * - * @param periph_id peripheral to reset - * @param enable 1 to put into reset, 0 to take out of reset - */ -void reset_set_enable(enum periph_id periph_id, int enable); - - -/* CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET/CLR_0 */ -enum crc_reset_id { - /* Things we can hold in reset for each CPU */ - crc_rst_cpu = 1, - crc_rst_de = 1 << 2, /* What is de? */ - crc_rst_watchdog = 1 << 3, - crc_rst_debug = 1 << 4, -}; - -/** - * Put parts of the CPU complex into or out of reset.\ - * - * @param cpu cpu number (0 or 1 on Tegra2) - * @param which which parts of the complex to affect (OR of crc_reset_id) - * @param reset 1 to assert reset, 0 to de-assert - */ -void reset_cmplx_set_enable(int cpu, int which, int reset); - -/** - * Set the source for a peripheral clock. This plus the divisor sets the - * clock rate. You need to look up the datasheet to see the meaning of the - * source parameter as it changes for each peripheral. - * - * Warning: This function is only for use pre-relocation. Please use - * clock_start_periph_pll() instead. - * - * @param periph_id peripheral to adjust - * @param source source clock (0, 1, 2 or 3) - */ -void clock_ll_set_source(enum periph_id periph_id, unsigned source); - -/** - * Set the source and divisor for a peripheral clock. This sets the - * clock rate. You need to look up the datasheet to see the meaning of the - * source parameter as it changes for each peripheral. - * - * Warning: This function is only for use pre-relocation. Please use - * clock_start_periph_pll() instead. - * - * @param periph_id peripheral to adjust - * @param source source clock (0, 1, 2 or 3) - * @param divisor divisor value to use - */ -void clock_ll_set_source_divisor(enum periph_id periph_id, unsigned source, - unsigned divisor); - -/** - * Start a peripheral PLL clock at the given rate. This also resets the - * peripheral. - * - * @param periph_id peripheral to start - * @param parent PLL id of required parent clock - * @param rate Required clock rate in Hz - * @return rate selected in Hz, or -1U if something went wrong - */ -unsigned clock_start_periph_pll(enum periph_id periph_id, - enum clock_id parent, unsigned rate); - -/** - * Returns the rate of a peripheral clock in Hz. Since the caller almost - * certainly knows the parent clock (having just set it) we require that - * this be passed in so we don't need to work it out. - * - * @param periph_id peripheral to start - * @param parent PLL id of parent clock (used to calculate rate, you - * must know this!) - * @return clock rate of peripheral in Hz - */ -unsigned long clock_get_periph_rate(enum periph_id periph_id, - enum clock_id parent); - -/** - * Adjust peripheral PLL clock to the given rate. This does not reset the - * peripheral. If a second stage divisor is not available, pass NULL for - * extra_div. If it is available, then this parameter will return the - * divisor selected (which will be a power of 2 from 1 to 256). - * - * @param periph_id peripheral to start - * @param parent PLL id of required parent clock - * @param rate Required clock rate in Hz - * @param extra_div value for the second-stage divisor (NULL if one is - not available) - * @return rate selected in Hz, or -1U if something went wrong - */ -unsigned clock_adjust_periph_pll_div(enum periph_id periph_id, - enum clock_id parent, unsigned rate, int *extra_div); - -/** - * Returns the clock rate of a specified clock, in Hz. - * - * @param parent PLL id of clock to check - * @return rate of clock in Hz - */ -unsigned clock_get_rate(enum clock_id clkid); - -/** - * Start up a UART using low-level calls - * - * Prior to relocation clock_start_periph_pll() cannot be called. This - * function provides a way to set up a UART using low-level calls which - * do not require BSS. - * - * @param periph_id Peripheral ID of UART to enable (e,g, PERIPH_ID_UART1) - */ -void clock_ll_start_uart(enum periph_id periph_id); - -/** - * Decode a peripheral ID from a device tree node. - * - * This works by looking up the peripheral's 'clocks' node and reading out - * the second cell, which is the clock number / peripheral ID. - * - * @param blob FDT blob to use - * @param node Node to look at - * @return peripheral ID, or PERIPH_ID_NONE if none - */ -enum periph_id clock_decode_periph_id(const void *blob, int node); - -/** - * Checks if the oscillator bypass is enabled (XOBP bit) - * - * @return 1 if bypass is enabled, 0 if not - */ -int clock_get_osc_bypass(void); - -/* - * Checks that clocks are valid and prints a warning if not - * - * @return 0 if ok, -1 on error - */ -int clock_verify(void); - -/* Initialize the clocks */ -void clock_init(void); - -/* Initialize the PLLs */ -void clock_early_init(void); - -#endif +#endif /* _TEGRA20_CLOCK_H */ -- cgit v1.2.1