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imx: mx7ulp: Add clock framework and functions

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Add a clock framework to support SCG1/PCC2/PCC3 for A7 to support get/set
clock source, divider, clock rate and parent source.
Users need to include pcc.h to use the APIs to for peripherals clock. Each
peripheral clock is defined in enum pcc_clk type.

SCG relevants APIs are defined in scg.h which supports clock rate get, PLL/PFD
enablement and settings, and all SCG clock initialization. User need use enum
scg_clk to access each clock source.

In clock.c, we initialize necessary clocks at u-boot s_init and implement the
clock functions used by driver modules to operate clocks dynamically.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan
2017-02-22 16:21:42 +08:00
committed by Stefano Babic
parent 0cb3d82c68
commit d0f8516d9e
7 changed files with 2441 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
arch/arm/include/asm/arch-mx7ulp/clock.h Normal file
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/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARCH_CLOCK_H
#define _ASM_ARCH_CLOCK_H
#include <common.h>
#include <asm/arch/pcc.h>
#include <asm/arch/scg.h>
/* Mainly for compatible to imx common code. */
enum mxc_clock {
MXC_ARM_CLK = 0,
MXC_AHB_CLK,
MXC_IPG_CLK,
MXC_UART_CLK,
MXC_CSPI_CLK,
MXC_AXI_CLK,
MXC_DDR_CLK,
MXC_ESDHC_CLK,
MXC_ESDHC2_CLK,
MXC_I2C_CLK,
};
u32 mxc_get_clock(enum mxc_clock clk);
u32 get_lpuart_clk(void);
#ifdef CONFIG_MXC_OCOTP
void enable_ocotp_clk(unsigned char enable);
#endif
#ifdef CONFIG_USB_EHCI
void enable_usboh3_clk(unsigned char enable);
#endif
void init_clk_usdhc(u32 index);
void clock_init(void);
#endif

373
arch/arm/include/asm/arch-mx7ulp/pcc.h Normal file
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/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARCH_PCC_H
#define _ASM_ARCH_PCC_H
#include <common.h>
#include <asm/arch/scg.h>
/* PCC2 */
enum pcc2_entry {
/* On-Platform (32 entries) */
RSVD0_PCC2_SLOT = 0,
RSVD1_PCC2_SLOT = 1,
CA7_GIC_PCC2_SLOT = 2,
RSVD3_PCC2_SLOT = 3,
RSVD4_PCC2_SLOT = 4,
RSVD5_PCC2_SLOT = 5,
RSVD6_PCC2_SLOT = 6,
RSVD7_PCC2_SLOT = 7,
DMA1_PCC2_SLOT = 8,
RSVD9_PCC2_SLOT = 9,
RSVD10_PCC2_SLOT = 10,
RSVD11_PCC2_SLOT = 11,
RSVD12_PCC2_SLOT = 12,
RSVD13_PCC2_SLOT = 13,
RSVD14_PCC2_SLOT = 14,
RGPIO1_PCC2_SLOT = 15,
FLEXBUS0_PCC2_SLOT = 16,
RSVD17_PCC2_SLOT = 17,
RSVD18_PCC2_SLOT = 18,
RSVD19_PCC2_SLOT = 19,
RSVD20_PCC2_SLOT = 20,
RSVD21_PCC2_SLOT = 21,
RSVD22_PCC2_SLOT = 22,
RSVD23_PCC2_SLOT = 23,
RSVD24_PCC2_SLOT = 24,
RSVD25_PCC2_SLOT = 25,
RSVD26_PCC2_SLOT = 26,
SEMA42_1_PCC2_SLOT = 27,
RSVD28_PCC2_SLOT = 28,
RSVD29_PCC2_SLOT = 29,
RSVD30_PCC2_SLOT = 30,
RSVD31_PCC2_SLOT = 31,
/* Off-Platform (96 entries) */
RSVD32_PCC2_SLOT = 32,
DMA1_CH_MUX0_PCC2_SLOT = 33,
MU_B_PCC2_SLOT = 34,
SNVS_PCC2_SLOT = 35,
CAAM_PCC2_SLOT = 36,
LPTPM4_PCC2_SLOT = 37,
LPTPM5_PCC2_SLOT = 38,
LPIT1_PCC2_SLOT = 39,
RSVD40_PCC2_SLOT = 40,
LPSPI2_PCC2_SLOT = 41,
LPSPI3_PCC2_SLOT = 42,
LPI2C4_PCC2_SLOT = 43,
LPI2C5_PCC2_SLOT = 44,
LPUART4_PCC2_SLOT = 45,
LPUART5_PCC2_SLOT = 46,
RSVD47_PCC2_SLOT = 47,
RSVD48_PCC2_SLOT = 48,
FLEXIO1_PCC2_SLOT = 49,
RSVD50_PCC2_SLOT = 50,
USBOTG0_PCC2_SLOT = 51,
USBOTG1_PCC2_SLOT = 52,
USBPHY_PCC2_SLOT = 53,
USB_PL301_PCC2_SLOT = 54,
USDHC0_PCC2_SLOT = 55,
USDHC1_PCC2_SLOT = 56,
RSVD57_PCC2_SLOT = 57,
TRGMUX1_PCC2_SLOT = 58,
RSVD59_PCC2_SLOT = 59,
RSVD60_PCC2_SLOT = 60,
WDG1_PCC2_SLOT = 61,
SCG1_PCC2_SLOT = 62,
PCC2_PCC2_SLOT = 63,
PMC1_PCC2_SLOT = 64,
SMC1_PCC2_SLOT = 65,
RCM1_PCC2_SLOT = 66,
WDG2_PCC2_SLOT = 67,
RSVD68_PCC2_SLOT = 68,
TEST_SPACE1_PCC2_SLOT = 69,
TEST_SPACE2_PCC2_SLOT = 70,
TEST_SPACE3_PCC2_SLOT = 71,
RSVD72_PCC2_SLOT = 72,
RSVD73_PCC2_SLOT = 73,
RSVD74_PCC2_SLOT = 74,
RSVD75_PCC2_SLOT = 75,
RSVD76_PCC2_SLOT = 76,
RSVD77_PCC2_SLOT = 77,
RSVD78_PCC2_SLOT = 78,
RSVD79_PCC2_SLOT = 79,
RSVD80_PCC2_SLOT = 80,
RSVD81_PCC2_SLOT = 81,
RSVD82_PCC2_SLOT = 82,
RSVD83_PCC2_SLOT = 83,
RSVD84_PCC2_SLOT = 84,
RSVD85_PCC2_SLOT = 85,
RSVD86_PCC2_SLOT = 86,
RSVD87_PCC2_SLOT = 87,
RSVD88_PCC2_SLOT = 88,
RSVD89_PCC2_SLOT = 89,
RSVD90_PCC2_SLOT = 90,
RSVD91_PCC2_SLOT = 91,
RSVD92_PCC2_SLOT = 92,
RSVD93_PCC2_SLOT = 93,
RSVD94_PCC2_SLOT = 94,
RSVD95_PCC2_SLOT = 95,
RSVD96_PCC2_SLOT = 96,
RSVD97_PCC2_SLOT = 97,
RSVD98_PCC2_SLOT = 98,
RSVD99_PCC2_SLOT = 99,
RSVD100_PCC2_SLOT = 100,
RSVD101_PCC2_SLOT = 101,
RSVD102_PCC2_SLOT = 102,
RSVD103_PCC2_SLOT = 103,
RSVD104_PCC2_SLOT = 104,
RSVD105_PCC2_SLOT = 105,
RSVD106_PCC2_SLOT = 106,
RSVD107_PCC2_SLOT = 107,
RSVD108_PCC2_SLOT = 108,
RSVD109_PCC2_SLOT = 109,
RSVD110_PCC2_SLOT = 110,
RSVD111_PCC2_SLOT = 111,
RSVD112_PCC2_SLOT = 112,
RSVD113_PCC2_SLOT = 113,
RSVD114_PCC2_SLOT = 114,
RSVD115_PCC2_SLOT = 115,
RSVD116_PCC2_SLOT = 116,
RSVD117_PCC2_SLOT = 117,
RSVD118_PCC2_SLOT = 118,
RSVD119_PCC2_SLOT = 119,
RSVD120_PCC2_SLOT = 120,
RSVD121_PCC2_SLOT = 121,
RSVD122_PCC2_SLOT = 122,
RSVD123_PCC2_SLOT = 123,
RSVD124_PCC2_SLOT = 124,
RSVD125_PCC2_SLOT = 125,
RSVD126_PCC2_SLOT = 126,
RSVD127_PCC2_SLOT = 127,
};
enum pcc3_entry {
/* On-Platform (32 entries) */
RSVD0_PCC3_SLOT = 0,
RSVD1_PCC3_SLOT = 1,
RSVD2_PCC3_SLOT = 2,
RSVD3_PCC3_SLOT = 3,
RSVD4_PCC3_SLOT = 4,
RSVD5_PCC3_SLOT = 5,
RSVD6_PCC3_SLOT = 6,
RSVD7_PCC3_SLOT = 7,
RSVD8_PCC3_SLOT = 8,
RSVD9_PCC3_SLOT = 9,
RSVD10_PCC3_SLOT = 10,
RSVD11_PCC3_SLOT = 11,
RSVD12_PCC3_SLOT = 12,
RSVD13_PCC3_SLOT = 13,
RSVD14_PCC3_SLOT = 14,
RSVD15_PCC3_SLOT = 15,
ROMCP1_PCC3_SLOT = 16,
RSVD17_PCC3_SLOT = 17,
RSVD18_PCC3_SLOT = 18,
RSVD19_PCC3_SLOT = 19,
RSVD20_PCC3_SLOT = 20,
RSVD21_PCC3_SLOT = 21,
RSVD22_PCC3_SLOT = 22,
RSVD23_PCC3_SLOT = 23,
RSVD24_PCC3_SLOT = 24,
RSVD25_PCC3_SLOT = 25,
RSVD26_PCC3_SLOT = 26,
RSVD27_PCC3_SLOT = 27,
RSVD28_PCC3_SLOT = 28,
RSVD29_PCC3_SLOT = 29,
RSVD30_PCC3_SLOT = 30,
RSVD31_PCC3_SLOT = 31,
/* Off-Platform (96 entries) */
RSVD32_PCC3_SLOT = 32,
LPTPM6_PCC3_SLOT = 33,
LPTPM7_PCC3_SLOT = 34,
RSVD35_PCC3_SLOT = 35,
LPI2C6_PCC3_SLOT = 36,
LPI2C7_PCC3_SLOT = 37,
LPUART6_PCC3_SLOT = 38,
LPUART7_PCC3_SLOT = 39,
VIU0_PCC3_SLOT = 40,
DSI0_PCC3_SLOT = 41,
LCDIF0_PCC3_SLOT = 42,
MMDC0_PCC3_SLOT = 43,
IOMUXC1_PCC3_SLOT = 44,
IOMUXC_DDR_PCC3_SLOT = 45,
PORTC_PCC3_SLOT = 46,
PORTD_PCC3_SLOT = 47,
PORTE_PCC3_SLOT = 48,
PORTF_PCC3_SLOT = 49,
RSVD50_PCC3_SLOT = 50,
PCC3_PCC3_SLOT = 51,
RSVD52_PCC3_SLOT = 52,
WKPU_PCC3_SLOT = 53,
RSVD54_PCC3_SLOT = 54,
RSVD55_PCC3_SLOT = 55,
RSVD56_PCC3_SLOT = 56,
RSVD57_PCC3_SLOT = 57,
RSVD58_PCC3_SLOT = 58,
RSVD59_PCC3_SLOT = 59,
RSVD60_PCC3_SLOT = 60,
RSVD61_PCC3_SLOT = 61,
RSVD62_PCC3_SLOT = 62,
RSVD63_PCC3_SLOT = 63,
RSVD64_PCC3_SLOT = 64,
RSVD65_PCC3_SLOT = 65,
RSVD66_PCC3_SLOT = 66,
RSVD67_PCC3_SLOT = 67,
RSVD68_PCC3_SLOT = 68,
RSVD69_PCC3_SLOT = 69,
RSVD70_PCC3_SLOT = 70,
RSVD71_PCC3_SLOT = 71,
RSVD72_PCC3_SLOT = 72,
RSVD73_PCC3_SLOT = 73,
RSVD74_PCC3_SLOT = 74,
RSVD75_PCC3_SLOT = 75,
RSVD76_PCC3_SLOT = 76,
RSVD77_PCC3_SLOT = 77,
RSVD78_PCC3_SLOT = 78,
RSVD79_PCC3_SLOT = 79,
RSVD80_PCC3_SLOT = 80,
GPU3D_PCC3_SLOT = 81,
GPU2D_PCC3_SLOT = 82,
RSVD83_PCC3_SLOT = 83,
RSVD84_PCC3_SLOT = 84,
RSVD85_PCC3_SLOT = 85,
RSVD86_PCC3_SLOT = 86,
RSVD87_PCC3_SLOT = 87,
RSVD88_PCC3_SLOT = 88,
RSVD89_PCC3_SLOT = 89,
RSVD90_PCC3_SLOT = 90,
RSVD91_PCC3_SLOT = 91,
RSVD92_PCC3_SLOT = 92,
RSVD93_PCC3_SLOT = 93,
RSVD94_PCC3_SLOT = 94,
RSVD95_PCC3_SLOT = 95,
RSVD96_PCC3_SLOT = 96,
RSVD97_PCC3_SLOT = 97,
RSVD98_PCC3_SLOT = 98,
RSVD99_PCC3_SLOT = 99,
RSVD100_PCC3_SLOT = 100,
RSVD101_PCC3_SLOT = 101,
RSVD102_PCC3_SLOT = 102,
RSVD103_PCC3_SLOT = 103,
RSVD104_PCC3_SLOT = 104,
RSVD105_PCC3_SLOT = 105,
RSVD106_PCC3_SLOT = 106,
RSVD107_PCC3_SLOT = 107,
RSVD108_PCC3_SLOT = 108,
RSVD109_PCC3_SLOT = 109,
RSVD110_PCC3_SLOT = 110,
RSVD111_PCC3_SLOT = 111,
RSVD112_PCC3_SLOT = 112,
RSVD113_PCC3_SLOT = 113,
RSVD114_PCC3_SLOT = 114,
RSVD115_PCC3_SLOT = 115,
RSVD116_PCC3_SLOT = 116,
RSVD117_PCC3_SLOT = 117,
RSVD118_PCC3_SLOT = 118,
RSVD119_PCC3_SLOT = 119,
RSVD120_PCC3_SLOT = 120,
RSVD121_PCC3_SLOT = 121,
RSVD122_PCC3_SLOT = 122,
RSVD123_PCC3_SLOT = 123,
RSVD124_PCC3_SLOT = 124,
RSVD125_PCC3_SLOT = 125,
RSVD126_PCC3_SLOT = 126,
RSVD127_PCC3_SLOT = 127,
};
/* PCC registers */
#define PCC_PR_OFFSET 31
#define PCC_PR_MASK (0x1 << PCC_PR_OFFSET)
#define PCC_CGC_OFFSET 30
#define PCC_CGC_MASK (0x1 << PCC_CGC_OFFSET)
#define PCC_INUSE_OFFSET 29
#define PCC_INUSE_MASK (0x1 << PCC_INUSE_OFFSET)
#define PCC_PCS_OFFSET 24
#define PCC_PCS_MASK (0x7 << PCC_PCS_OFFSET)
#define PCC_FRAC_OFFSET 4
#define PCC_FRAC_MASK (0x1 << PCC_FRAC_OFFSET)
#define PCC_PCD_OFFSET 0
#define PCC_PCD_MASK (0xf << PCC_PCD_OFFSET)
enum pcc_clksrc_type {
CLKSRC_PER_PLAT = 0,
CLKSRC_PER_BUS = 1,
CLKSRC_NO_PCS = 2,
};
enum pcc_div_type {
PCC_HAS_DIV,
PCC_NO_DIV,
};
/* All peripheral clocks on A7 PCCs */
enum pcc_clk {
/*PCC2 clocks*/
PER_CLK_DMA1 = 0,
PER_CLK_RGPIO2P1,
PER_CLK_FLEXBUS,
PER_CLK_SEMA42_1,
PER_CLK_DMA_MUX1,
PER_CLK_SNVS,
PER_CLK_CAAM,
PER_CLK_LPTPM4,
PER_CLK_LPTPM5,
PER_CLK_LPIT1,
PER_CLK_LPSPI2,
PER_CLK_LPSPI3,
PER_CLK_LPI2C4,
PER_CLK_LPI2C5,
PER_CLK_LPUART4,
PER_CLK_LPUART5,
PER_CLK_FLEXIO1,
PER_CLK_USB0,
PER_CLK_USB1,
PER_CLK_USB_PHY,
PER_CLK_USB_PL301,
PER_CLK_USDHC0,
PER_CLK_USDHC1,
PER_CLK_WDG1,
PER_CLK_WDG2,
/*PCC3 clocks*/
PER_CLK_LPTPM6,
PER_CLK_LPTPM7,
PER_CLK_LPI2C6,
PER_CLK_LPI2C7,
PER_CLK_LPUART6,
PER_CLK_LPUART7,
PER_CLK_VIU,
PER_CLK_DSI,
PER_CLK_LCDIF,
PER_CLK_MMDC,
PER_CLK_PCTLC,
PER_CLK_PCTLD,
PER_CLK_PCTLE,
PER_CLK_PCTLF,
PER_CLK_GPU3D,
PER_CLK_GPU2D,
};
/* This structure keeps info for each pcc slot */
struct pcc_entry {
u32 pcc_base;
u32 pcc_slot;
enum pcc_clksrc_type clksrc;
enum pcc_div_type div;
};
int pcc_clock_enable(enum pcc_clk clk, bool enable);
int pcc_clock_sel(enum pcc_clk clk, enum scg_clk src);
int pcc_clock_div_config(enum pcc_clk clk, bool frac, u8 div);
bool pcc_clock_is_enable(enum pcc_clk clk);
int pcc_clock_get_clksrc(enum pcc_clk clk, enum scg_clk *src);
u32 pcc_clock_get_rate(enum pcc_clk clk);
#endif

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arch/arm/include/asm/arch-mx7ulp/scg.h Normal file
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/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARCH_SCG_H
#define _ASM_ARCH_SCG_H
#include <common.h>
#ifdef CONFIG_CLK_DEBUG
#define clk_debug(fmt, args...) printf(fmt, ##args)
#else
#define clk_debug(fmt, args...)
#endif
#define SCG_CCR_SCS_SHIFT (24)
#define SCG_CCR_SCS_MASK ((0xFUL) << SCG_CCR_SCS_SHIFT)
#define SCG_CCR_DIVCORE_SHIFT (16)
#define SCG_CCR_DIVCORE_MASK ((0xFUL) << SCG_CCR_DIVCORE_SHIFT)
#define SCG_CCR_DIVPLAT_SHIFT (12)
#define SCG_CCR_DIVPLAT_MASK ((0xFUL) << SCG_CCR_DIVPLAT_SHIFT)
#define SCG_CCR_DIVEXT_SHIFT (8)
#define SCG_CCR_DIVEXT_MASK ((0xFUL) << SCG_CCR_DIVEXT_SHIFT)
#define SCG_CCR_DIVBUS_SHIFT (4)
#define SCG_CCR_DIVBUS_MASK ((0xFUL) << SCG_CCR_DIVBUS_SHIFT)
#define SCG_CCR_DIVSLOW_SHIFT (0)
#define SCG_CCR_DIVSLOW_MASK ((0xFUL) << SCG_CCR_DIVSLOW_SHIFT)
/* SCG DDR Clock Control Register */
#define SCG_DDRCCR_DDRCS_SHIFT (24)
#define SCG_DDRCCR_DDRCS_MASK ((0x1UL) << SCG_DDRCCR_DDRCS_SHIFT)
#define SCG_DDRCCR_DDRDIV_SHIFT (0)
#define SCG_DDRCCR_DDRDIV_MASK ((0x7UL) << SCG_DDRCCR_DDRDIV_SHIFT)
/* SCG NIC Clock Control Register */
#define SCG_NICCCR_NICCS_SHIFT (28)
#define SCG_NICCCR_NICCS_MASK ((0x1UL) << SCG_NICCCR_NICCS_SHIFT)
#define SCG_NICCCR_NIC0_DIV_SHIFT (24)
#define SCG_NICCCR_NIC0_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC0_DIV_SHIFT)
#define SCG_NICCCR_GPU_DIV_SHIFT (20)
#define SCG_NICCCR_GPU_DIV_MASK ((0xFUL) << SCG_NICCCR_GPU_DIV_SHIFT)
#define SCG_NICCCR_NIC1_DIV_SHIFT (16)
#define SCG_NICCCR_NIC1_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIV_SHIFT)
#define SCG_NICCCR_NIC1_DIVEXT_SHIFT (8)
#define SCG_NICCCR_NIC1_DIVEXT_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVEXT_SHIFT)
#define SCG_NICCCR_NIC1_DIVBUS_SHIFT (4)
#define SCG_NICCCR_NIC1_DIVBUS_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVBUS_SHIFT)
/* SCG NIC clock status register */
#define SCG_NICCSR_NICCS_SHIFT (28)
#define SCG_NICCSR_NICCS_MASK ((0x1UL) << SCG_NICCSR_NICCS_SHIFT)
#define SCG_NICCSR_NIC0DIV_SHIFT (24)
#define SCG_NICCSR_NIC0DIV_MASK ((0xFUL) << SCG_NICCSR_NIC0DIV_SHIFT)
#define SCG_NICCSR_GPUDIV_SHIFT (20)
#define SCG_NICCSR_GPUDIV_MASK ((0xFUL) << SCG_NICCSR_GPUDIV_SHIFT)
#define SCG_NICCSR_NIC1DIV_SHIFT (16)
#define SCG_NICCSR_NIC1DIV_MASK ((0xFUL) << SCG_NICCSR_NIC1DIV_SHIFT)
#define SCG_NICCSR_NIC1EXTDIV_SHIFT (8)
#define SCG_NICCSR_NIC1EXTDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1EXTDIV_SHIFT)
#define SCG_NICCSR_NIC1BUSDIV_SHIFT (4)
#define SCG_NICCSR_NIC1BUSDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1BUSDIV_SHIFT)
/* SCG Slow IRC Control Status Register */
#define SCG_SIRC_CSR_SIRCVLD_SHIFT (24)
#define SCG_SIRC_CSR_SIRCVLD_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCVLD_SHIFT)
#define SCG_SIRC_CSR_SIRCEN_SHIFT (0)
#define SCG_SIRC_CSR_SIRCEN_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCEN_SHIFT)
/* SCG Slow IRC Configuration Register */
#define SCG_SIRCCFG_RANGE_SHIFT (0)
#define SCG_SIRCCFG_RANGE_MASK ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT)
#define SCG_SIRCCFG_RANGE_4M ((0x0UL) << SCG_SIRCCFG_RANGE_SHIFT)
#define SCG_SIRCCFG_RANGE_16M ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT)
/* SCG Slow IRC Divide Register */
#define SCG_SIRCDIV_DIV3_SHIFT (16)
#define SCG_SIRCDIV_DIV3_MASK ((0x7UL) << SCG_SIRCDIV_DIV3_SHIFT)
#define SCG_SIRCDIV_DIV2_SHIFT (8)
#define SCG_SIRCDIV_DIV2_MASK ((0x7UL) << SCG_SIRCDIV_DIV2_SHIFT)
#define SCG_SIRCDIV_DIV1_SHIFT (0)
#define SCG_SIRCDIV_DIV1_MASK ((0x7UL) << SCG_SIRCDIV_DIV1_SHIFT)
/*
* FIRC/SIRC DIV1 ==> xIRC_PLAT_CLK
* FIRC/SIRC DIV2 ==> xIRC_BUS_CLK
* FIRC/SIRC DIV3 ==> xIRC_SLOW_CLK
*/
/* SCG Fast IRC Control Status Register */
#define SCG_FIRC_CSR_FIRCVLD_SHIFT (24)
#define SCG_FIRC_CSR_FIRCVLD_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCVLD_SHIFT)
#define SCG_FIRC_CSR_FIRCEN_SHIFT (0)
#define SCG_FIRC_CSR_FIRCEN_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCEN_SHIFT)
/* SCG Fast IRC Divide Register */
#define SCG_FIRCDIV_DIV3_SHIFT (16)
#define SCG_FIRCDIV_DIV3_MASK ((0x7UL) << SCG_FIRCDIV_DIV3_SHIFT)
#define SCG_FIRCDIV_DIV2_SHIFT (8)
#define SCG_FIRCDIV_DIV2_MASK ((0x7UL) << SCG_FIRCDIV_DIV2_SHIFT)
#define SCG_FIRCDIV_DIV1_SHIFT (0)
#define SCG_FIRCDIV_DIV1_MASK ((0x7UL) << SCG_FIRCDIV_DIV1_SHIFT)
#define SCG_FIRCCFG_RANGE_SHIFT (0)
#define SCG_FIRCCFG_RANGE_MASK ((0x3UL) << SCG_FIRCCFG_RANGE_SHIFT)
#define SCG_FIRCCFG_RANGE_SHIFT (0)
#define SCG_FIRCCFG_RANGE_48M ((0x0UL) << SCG_FIRCCFG_RANGE_SHIFT)
/* SCG System OSC Control Status Register */
#define SCG_SOSC_CSR_SOSCVLD_SHIFT (24)
#define SCG_SOSC_CSR_SOSCVLD_MASK ((0x1UL) << SCG_SOSC_CSR_SOSCVLD_SHIFT)
/* SCG Fast IRC Divide Register */
#define SCG_SOSCDIV_DIV3_SHIFT (16)
#define SCG_SOSCDIV_DIV3_MASK ((0x7UL) << SCG_SOSCDIV_DIV3_SHIFT)
#define SCG_SOSCDIV_DIV2_SHIFT (8)
#define SCG_SOSCDIV_DIV2_MASK ((0x7UL) << SCG_SOSCDIV_DIV2_SHIFT)
#define SCG_SOSCDIV_DIV1_SHIFT (0)
#define SCG_SOSCDIV_DIV1_MASK ((0x7UL) << SCG_SOSCDIV_DIV1_SHIFT)
/* SCG RTC OSC Control Status Register */
#define SCG_ROSC_CSR_ROSCVLD_SHIFT (24)
#define SCG_ROSC_CSR_ROSCVLD_MASK ((0x1UL) << SCG_ROSC_CSR_ROSCVLD_SHIFT)
#define SCG_SPLL_CSR_SPLLVLD_SHIFT (24)
#define SCG_SPLL_CSR_SPLLVLD_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLVLD_SHIFT)
#define SCG_SPLL_CSR_SPLLEN_SHIFT (0)
#define SCG_SPLL_CSR_SPLLEN_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLEN_SHIFT)
#define SCG_APLL_CSR_APLLEN_SHIFT (0)
#define SCG_APLL_CSR_APLLEN_MASK (0x1UL)
#define SCG_APLL_CSR_APLLVLD_MASK (0x01000000)
#define SCG_UPLL_CSR_UPLLVLD_MASK (0x01000000)
#define SCG_PLL_PFD3_GATE_MASK (0x80000000)
#define SCG_PLL_PFD2_GATE_MASK (0x00800000)
#define SCG_PLL_PFD1_GATE_MASK (0x00008000)
#define SCG_PLL_PFD0_GATE_MASK (0x00000080)
#define SCG_PLL_PFD3_VALID_MASK (0x40000000)
#define SCG_PLL_PFD2_VALID_MASK (0x00400000)
#define SCG_PLL_PFD1_VALID_MASK (0x00004000)
#define SCG_PLL_PFD0_VALID_MASK (0x00000040)
#define SCG_PLL_PFD0_FRAC_SHIFT (0)
#define SCG_PLL_PFD0_FRAC_MASK ((0x3F) << SCG_PLL_PFD0_FRAC_SHIFT)
#define SCG_PLL_PFD1_FRAC_SHIFT (8)
#define SCG_PLL_PFD1_FRAC_MASK ((0x3F) << SCG_PLL_PFD1_FRAC_SHIFT)
#define SCG_PLL_PFD2_FRAC_SHIFT (16)
#define SCG_PLL_PFD2_FRAC_MASK ((0x3F) << SCG_PLL_PFD2_FRAC_SHIFT)
#define SCG_PLL_PFD3_FRAC_SHIFT (24)
#define SCG_PLL_PFD3_FRAC_MASK ((0x3F) << SCG_PLL_PFD3_FRAC_SHIFT)
#define SCG_PLL_CFG_POSTDIV2_SHIFT (28)
#define SCG_PLL_CFG_POSTDIV2_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV2_SHIFT)
#define SCG_PLL_CFG_POSTDIV1_SHIFT (24)
#define SCG_PLL_CFG_POSTDIV1_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV1_SHIFT)
#define SCG_PLL_CFG_MULT_SHIFT (16)
#define SCG1_SPLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT)
#define SCG_APLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT)
#define SCG_PLL_CFG_PFDSEL_SHIFT (14)
#define SCG_PLL_CFG_PFDSEL_MASK ((0x3UL) << SCG_PLL_CFG_PFDSEL_SHIFT)
#define SCG_PLL_CFG_PREDIV_SHIFT (8)
#define SCG_PLL_CFG_PREDIV_MASK ((0x7UL) << SCG_PLL_CFG_PREDIV_SHIFT)
#define SCG_PLL_CFG_BYPASS_SHIFT (2)
/* 0: SPLL, 1: bypass */
#define SCG_PLL_CFG_BYPASS_MASK ((0x1UL) << SCG_PLL_CFG_BYPASS_SHIFT)
#define SCG_PLL_CFG_PLLSEL_SHIFT (1)
/* 0: pll, 1: pfd */
#define SCG_PLL_CFG_PLLSEL_MASK ((0x1UL) << SCG_PLL_CFG_PLLSEL_SHIFT)
#define SCG_PLL_CFG_CLKSRC_SHIFT (0)
/* 0: Sys-OSC, 1: FIRC */
#define SCG_PLL_CFG_CLKSRC_MASK ((0x1UL) << SCG_PLL_CFG_CLKSRC_SHIFT)
#define SCG0_SPLL_CFG_MULT_SHIFT (17)
/* 0: Multiplier = 20, 1: Multiplier = 22 */
#define SCG0_SPLL_CFG_MULT_MASK ((0x1UL) << SCG0_SPLL_CFG_MULT_SHIFT)
#define PLL_USB_EN_USB_CLKS_MASK (0x01 << 6)
#define PLL_USB_PWR_MASK (0x01 << 12)
#define PLL_USB_ENABLE_MASK (0x01 << 13)
#define PLL_USB_BYPASS_MASK (0x01 << 16)
#define PLL_USB_REG_ENABLE_MASK (0x01 << 21)
#define PLL_USB_DIV_SEL_MASK (0x07 << 22)
#define PLL_USB_LOCK_MASK (0x01 << 31)
enum scg_clk {
SCG_SOSC_CLK,
SCG_FIRC_CLK,
SCG_SIRC_CLK,
SCG_ROSC_CLK,
SCG_SIRC_DIV1_CLK,
SCG_SIRC_DIV2_CLK,
SCG_SIRC_DIV3_CLK,
SCG_FIRC_DIV1_CLK,
SCG_FIRC_DIV2_CLK,
SCG_FIRC_DIV3_CLK,
SCG_SOSC_DIV1_CLK,
SCG_SOSC_DIV2_CLK,
SCG_SOSC_DIV3_CLK,
SCG_CORE_CLK,
SCG_BUS_CLK,
SCG_SPLL_PFD0_CLK,
SCG_SPLL_PFD1_CLK,
SCG_SPLL_PFD2_CLK,
SCG_SPLL_PFD3_CLK,
SCG_DDR_CLK,
SCG_NIC0_CLK,
SCG_GPU_CLK,
SCG_NIC1_CLK,
SCG_NIC1_BUS_CLK,
SCG_NIC1_EXT_CLK,
SCG_APLL_PFD0_CLK,
SCG_APLL_PFD1_CLK,
SCG_APLL_PFD2_CLK,
SCG_APLL_PFD3_CLK,
USB_PLL_OUT,
MIPI_PLL_OUT
};
enum scg_sys_src {
SCG_SCS_SYS_OSC = 1,
SCG_SCS_SLOW_IRC,
SCG_SCS_FAST_IRC,
SCG_SCS_RTC_OSC,
SCG_SCS_AUX_PLL,
SCG_SCS_SYS_PLL,
SCG_SCS_USBPHY_PLL,
};
/* PLL supported by i.mx7ulp */
enum pll_clocks {
PLL_M4_SPLL, /* M4 SPLL */
PLL_M4_APLL, /* M4 APLL*/
PLL_A7_SPLL, /* A7 SPLL */
PLL_A7_APLL, /* A7 APLL */
PLL_USB, /* USB PLL*/
PLL_MIPI, /* MIPI PLL */
};
typedef struct scg_regs {
u32 verid; /* VERSION_ID */
u32 param; /* PARAMETER */
u32 rsvd11[2];
u32 csr; /* Clock Status Register */
u32 rccr; /* Run Clock Control Register */
u32 vccr; /* VLPR Clock Control Register */
u32 hccr; /* HSRUN Clock Control Register */
u32 clkoutcnfg; /* SCG CLKOUT Configuration Register */
u32 rsvd12[3];
u32 ddrccr; /* SCG DDR Clock Control Register */
u32 rsvd13[3];
u32 nicccr; /* NIC Clock Control Register */
u32 niccsr; /* NIC Clock Status Register */
u32 rsvd10[46];
u32 sosccsr; /* System OSC Control Status Register, offset 0x100 */
u32 soscdiv; /* System OSC Divide Register */
u32 sosccfg; /* System Oscillator Configuration Register */
u32 sosctest; /* System Oscillator Test Register */
u32 rsvd20[60];
u32 sirccsr; /* Slow IRC Control Status Register, offset 0x200 */
u32 sircdiv; /* Slow IRC Divide Register */
u32 sirccfg; /* Slow IRC Configuration Register */
u32 sirctrim; /* Slow IRC Trim Register */
u32 loptrim; /* Low Power Oscillator Trim Register */
u32 sirctest; /* Slow IRC Test Register */
u32 rsvd30[58];
u32 firccsr; /* Fast IRC Control Status Register, offset 0x300 */
u32 fircdiv;
u32 firccfg;
u32 firctcfg; /* Fast IRC Trim Configuration Register */
u32 firctriml; /* Fast IRC Trim Low Register */
u32 firctrimh;
u32 fircstat; /* Fast IRC Status Register */
u32 firctest; /* Fast IRC Test Register */
u32 rsvd40[56];
u32 rtccsr; /* RTC OSC Control Status Register, offset 0x400 */
u32 rsvd50[63];
u32 apllcsr; /* Auxiliary PLL Control Status Register, offset 0x500 */
u32 aplldiv; /* Auxiliary PLL Divider Register */
u32 apllcfg; /* Auxiliary PLL Configuration Register */
u32 apllpfd; /* Auxiliary PLL PFD Register */
u32 apllnum; /* Auxiliary PLL Numerator Register */
u32 aplldenom; /* Auxiliary PLL Denominator Register */
u32 apllss; /* Auxiliary PLL Spread Spectrum Register */
u32 rsvd60[55];
u32 apllock_cnfg; /* Auxiliary PLL LOCK Configuration Register */
u32 rsvd61[1];
u32 spllcsr; /* System PLL Control Status Register, offset 0x600 */
u32 splldiv; /* System PLL Divide Register */
u32 spllcfg; /* System PLL Configuration Register */
u32 spllpfd; /* System PLL Test Register */
u32 spllnum; /* System PLL Numerator Register */
u32 splldenom; /* System PLL Denominator Register */
u32 spllss; /* System PLL Spread Spectrum Register */
u32 rsvd70[55];
u32 spllock_cnfg; /* System PLL LOCK Configuration Register */
u32 rsvd71[1];
u32 upllcsr; /* USB PLL Control Status Register, offset 0x700 */
u32 uplldiv; /* USB PLL Divide Register */
u32 upllcfg; /* USB PLL Configuration Register */
} scg_t, *scg_p;
u32 scg_clk_get_rate(enum scg_clk clk);
int scg_enable_pll_pfd(enum scg_clk clk, u32 frac);
int scg_enable_usb_pll(bool usb_control);
u32 decode_pll(enum pll_clocks pll);
void scg_a7_rccr_init(void);
void scg_a7_spll_init(void);
void scg_a7_ddrclk_init(void);
void scg_a7_apll_init(void);
void scg_a7_firc_init(void);
void scg_a7_nicclk_init(void);
void scg_a7_sys_clk_sel(enum scg_sys_src clk);
void scg_a7_info(void);
void scg_a7_soscdiv_init(void);
#endif