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u-boot/arch/arm/cpu/armv7/mx7/clock_slice.c
Adrian Alonso 7bebc4b04e imx: imx7d: clock control module support 
* Add Clock control module (CCM) support
* iMX7D SoC introduces 3 main clock sysmtem abstraction for clock
  root frequency generation denominated clock slices.
  Core clock slice: hihg speed clock for ARM core
  Bus clock slice: for bus clocks
  IP clock slice: Peripheral clocks
* At system boot ROM enables PLL_ARM, PLL_DDR, PLL_SYS, PLL_ENET
  In u-boot, we have to:
  - Configure PFD3- PFD7 for freq we needed in u-boot
  - Set clock root for peripherals (ip channel)

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
2015-09-13 10:11:53 +02:00

757 lines
22 KiB
C
Raw Blame History

/*
* Copyright (C) 2015 Freescale Semiconductor, Inc.
*
* Author:
* Peng Fan <Peng.Fan@freescale.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <div64.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
static struct clk_root_map root_array[] = {
{ARM_A7_CLK_ROOT, CCM_CORE_CHANNEL,
{OSC_24M_CLK, PLL_ARM_MAIN_800M_CLK, PLL_ENET_MAIN_500M_CLK,
PLL_DRAM_MAIN_1066M_CLK, PLL_SYS_MAIN_480M_CLK,
PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{ARM_M4_CLK_ROOT, CCM_BUS_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_250M_CLK,
PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{ARM_M0_CLK_ROOT, CCM_BUS_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_125M_CLK,
PLL_SYS_PFD2_135M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{MAIN_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD5_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD7_CLK}
},
{DISP_AXI_CLK_ROOT, CCM_BUS_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK,
PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
},
{ENET_AXI_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK}
},
{NAND_USDHC_BUS_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_PFD6_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_AUDIO_MAIN_CLK}
},
{AHB_CLK_ROOT, CCM_AHB_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_PFD0_392M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
},
{DRAM_PHYM_CLK_ROOT, CCM_DRAM_PHYM_CHANNEL,
{PLL_DRAM_MAIN_1066M_CLK, DRAM_PHYM_ALT_CLK_ROOT}
},
{DRAM_CLK_ROOT, CCM_DRAM_CHANNEL,
{PLL_DRAM_MAIN_1066M_CLK, DRAM_ALT_CLK_ROOT}
},
{DRAM_PHYM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD7_CLK,
PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK}
},
{DRAM_ALT_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_SYS_MAIN_480M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_ENET_MAIN_250M_CLK,
PLL_SYS_PFD0_392M_CLK, PLL_AUDIO_MAIN_CLK, PLL_SYS_PFD2_270M_CLK}
},
{USB_HSIC_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_USB_MAIN_480M_CLK,
PLL_SYS_PFD3_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD5_CLK,
PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
},
{PCIE_CTRL_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_250M_CLK, PLL_SYS_MAIN_240M_CLK,
PLL_SYS_PFD2_270M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_SYS_PFD6_CLK}
},
{PCIE_PHY_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_ENET_MAIN_500M_CLK,
EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
EXT_CLK_4, PLL_SYS_PFD0_392M_CLK}
},
{EPDC_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD1_332M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD6_CLK,
PLL_SYS_PFD7_CLK, PLL_VIDEO_MAIN_CLK}
},
{LCDIF_PIXEL_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_DRAM_MAIN_533M_CLK,
EXT_CLK_3, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{MIPI_DSI_EXTSER_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD5_CLK, PLL_SYS_PFD3_CLK,
PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
},
{MIPI_CSI_WARP_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD3_CLK,
PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD0_196M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_VIDEO_MAIN_CLK, PLL_AUDIO_MAIN_CLK}
},
{MIPI_DPHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_PFD5_CLK, REF_1M_CLK, EXT_CLK_2,
PLL_VIDEO_MAIN_CLK, EXT_CLK_3}
},
{SAI1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
},
{SAI2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_125M_CLK, EXT_CLK_2}
},
{SAI3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
},
{SPDIF_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_125M_CLK, EXT_CLK_3}
},
{ENET1_REF_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
},
{ENET1_TIME_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
},
{ENET2_REF_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_ENET_MAIN_25M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, EXT_CLK_4}
},
{ENET2_TIME_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_AUDIO_MAIN_CLK,
EXT_CLK_1, EXT_CLK_2, EXT_CLK_3,
EXT_CLK_4, PLL_VIDEO_MAIN_CLK}
},
{ENET_PHY_REF_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_25M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_ENET_MAIN_125M_CLK, PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_SYS_PFD3_CLK}
},
{EIM_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_SYS_PFD2_270M_CLK, PLL_SYS_PFD3_CLK,
PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK}
},
{NAND_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_PFD0_392M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_VIDEO_MAIN_CLK}
},
{QSPI_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD4_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD3_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
},
{USDHC1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
},
{USDHC2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
},
{USDHC3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD0_392M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD4_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_SYS_PFD6_CLK, PLL_SYS_PFD7_CLK}
},
{CAN1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
EXT_CLK_1, EXT_CLK_4}
},
{CAN2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_SYS_MAIN_480M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_USB_MAIN_480M_CLK,
EXT_CLK_1, EXT_CLK_3}
},
{I2C1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
},
{I2C2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
},
{I2C3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
},
{I2C4_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_120M_CLK, PLL_ENET_MAIN_50M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_AUDIO_MAIN_CLK, PLL_VIDEO_MAIN_CLK,
PLL_USB_MAIN_480M_CLK, PLL_SYS_PFD2_135M_CLK}
},
{UART1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
},
{UART2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
},
{UART3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
},
{UART4_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
},
{UART5_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
},
{UART6_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_3, PLL_USB_MAIN_480M_CLK}
},
{UART7_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_480M_CLK, EXT_CLK_2,
EXT_CLK_4, PLL_USB_MAIN_480M_CLK}
},
{ECSPI1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
},
{ECSPI2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
},
{ECSPI3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
},
{ECSPI4_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_ENET_MAIN_40M_CLK,
PLL_SYS_MAIN_120M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_PFD4_CLK,
PLL_ENET_MAIN_250M_CLK, PLL_USB_MAIN_480M_CLK}
},
{PWM1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{PWM2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_1,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{PWM3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{PWM4_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_2,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{FLEXTIMER1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{FLEXTIMER2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_AUDIO_MAIN_CLK, EXT_CLK_3,
REF_1M_CLK, PLL_VIDEO_MAIN_CLK}
},
{SIM1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
},
{SIM2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_USB_MAIN_480M_CLK, PLL_VIDEO_MAIN_CLK,
PLL_ENET_MAIN_125M_CLK, PLL_SYS_PFD7_CLK}
},
{GPT1_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
PLL_AUDIO_MAIN_CLK, EXT_CLK_1}
},
{GPT2_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
PLL_AUDIO_MAIN_CLK, EXT_CLK_2}
},
{GPT3_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
PLL_AUDIO_MAIN_CLK, EXT_CLK_3}
},
{GPT4_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_100M_CLK, PLL_SYS_PFD0_392M_CLK,
PLL_ENET_MAIN_40M_CLK, PLL_VIDEO_MAIN_CLK, REF_1M_CLK,
PLL_AUDIO_MAIN_CLK, EXT_CLK_4}
},
{TRACE_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
EXT_CLK_1, EXT_CLK_3}
},
{WDOG_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_USB_MAIN_480M_CLK,
REF_1M_CLK, PLL_SYS_PFD1_166M_CLK}
},
{CSI_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{AUDIO_MCLK_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_PFD2_135M_CLK, PLL_SYS_MAIN_120M_CLK,
PLL_DRAM_MAIN_533M_CLK, PLL_ENET_MAIN_125M_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, PLL_USB_MAIN_480M_CLK}
},
{WRCLK_CLK_ROOT, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_ENET_MAIN_40M_CLK, PLL_DRAM_MAIN_533M_CLK,
PLL_USB_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD2_270M_CLK,
PLL_ENET_MAIN_500M_CLK, PLL_SYS_PFD7_CLK}
},
{IPP_DO_CLKO1, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_480M_CLK, PLL_SYS_MAIN_240M_CLK,
PLL_SYS_PFD0_196M_CLK, PLL_SYS_PFD3_CLK, PLL_ENET_MAIN_500M_CLK,
PLL_DRAM_MAIN_533M_CLK, REF_1M_CLK}
},
{IPP_DO_CLKO2, CCM_IP_CHANNEL,
{OSC_24M_CLK, PLL_SYS_MAIN_240M_CLK, PLL_SYS_PFD0_392M_CLK,
PLL_SYS_PFD1_166M_CLK, PLL_SYS_PFD4_CLK, PLL_AUDIO_MAIN_CLK,
PLL_VIDEO_MAIN_CLK, OSC_32K_CLK}
},
};
/* select which entry of root_array */
static int select(enum clk_root_index clock_id)
{
int i, size;
struct clk_root_map *p = root_array;
size = ARRAY_SIZE(root_array);
for (i = 0; i < size; i++, p++) {
if (clock_id == p->entry)
return i;
}
return -EINVAL;
}
static int src_supported(int entry, enum clk_root_src clock_src)
{
int i, size;
struct clk_root_map *p = &root_array[entry];
if ((p->type == CCM_DRAM_PHYM_CHANNEL) || (p->type == CCM_DRAM_CHANNEL))
size = 2;
else
size = 8;
for (i = 0; i < size; i++) {
if (p->src_mux[i] == clock_src)
return i;
}
return -EINVAL;
}
/* Set src for clock root slice. */
int clock_set_src(enum clk_root_index clock_id, enum clk_root_src clock_src)
{
int root_entry, src_entry;
u32 reg;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
src_entry = src_supported(root_entry, clock_src);
if (src_entry < 0)
return -EINVAL;
reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
reg &= ~CLK_ROOT_MUX_MASK;
reg |= src_entry << CLK_ROOT_MUX_SHIFT;
__raw_writel(reg, &imx_ccm->root[clock_id].target_root);
return 0;
}
/* Get src of a clock root slice. */
int clock_get_src(enum clk_root_index clock_id, enum clk_root_src *p_clock_src)
{
u32 val;
int root_entry;
struct clk_root_map *p;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
val &= CLK_ROOT_MUX_MASK;
val >>= CLK_ROOT_MUX_SHIFT;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
*p_clock_src = p->src_mux[val];
return 0;
}
int clock_set_prediv(enum clk_root_index clock_id, enum root_pre_div pre_div)
{
int root_entry;
struct clk_root_map *p;
u32 reg;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
if ((p->type == CCM_CORE_CHANNEL) ||
(p->type == CCM_DRAM_PHYM_CHANNEL) ||
(p->type == CCM_DRAM_CHANNEL)) {
if (pre_div != CLK_ROOT_PRE_DIV1) {
printf("Error pre div!\n");
return -EINVAL;
}
}
reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
reg &= ~CLK_ROOT_PRE_DIV_MASK;
reg |= pre_div << CLK_ROOT_PRE_DIV_SHIFT;
__raw_writel(reg, &imx_ccm->root[clock_id].target_root);
return 0;
}
int clock_get_prediv(enum clk_root_index clock_id, enum root_pre_div *pre_div)
{
u32 val;
int root_entry;
struct clk_root_map *p;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
if ((p->type == CCM_CORE_CHANNEL) ||
(p->type == CCM_DRAM_PHYM_CHANNEL) ||
(p->type == CCM_DRAM_CHANNEL)) {
*pre_div = 0;
return 0;
}
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
val &= CLK_ROOT_PRE_DIV_MASK;
val >>= CLK_ROOT_PRE_DIV_SHIFT;
*pre_div = val;
return 0;
}
int clock_set_postdiv(enum clk_root_index clock_id, enum root_post_div div)
{
u32 reg;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
if (clock_id == DRAM_PHYM_CLK_ROOT) {
if (div != CLK_ROOT_POST_DIV1) {
printf("Error post div!\n");
return -EINVAL;
}
}
/* Only 3 bit post div. */
if ((clock_id == DRAM_CLK_ROOT) && (div > CLK_ROOT_POST_DIV7)) {
printf("Error post div!\n");
return -EINVAL;
}
reg = __raw_readl(&imx_ccm->root[clock_id].target_root);
reg &= ~CLK_ROOT_POST_DIV_MASK;
reg |= div << CLK_ROOT_POST_DIV_SHIFT;
__raw_writel(reg, &imx_ccm->root[clock_id].target_root);
return 0;
}
int clock_get_postdiv(enum clk_root_index clock_id, enum root_post_div *div)
{
u32 val;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
if (clock_id == DRAM_PHYM_CLK_ROOT) {
*div = 0;
return 0;
}
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
if (clock_id == DRAM_CLK_ROOT)
val &= DRAM_CLK_ROOT_POST_DIV_MASK;
else
val &= CLK_ROOT_POST_DIV_MASK;
val >>= CLK_ROOT_POST_DIV_SHIFT;
*div = val;
return 0;
}
int clock_set_autopostdiv(enum clk_root_index clock_id, enum root_auto_div div,
int auto_en)
{
u32 val;
int root_entry;
struct clk_root_map *p;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
printf("Auto postdiv not supported.!\n");
return -EINVAL;
}
/*
* Each time only one filed can be changed, no use target_root_set.
*/
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
val &= ~CLK_ROOT_AUTO_DIV_MASK;
val |= (div << CLK_ROOT_AUTO_DIV_SHIFT);
if (auto_en)
val |= CLK_ROOT_AUTO_EN;
else
val &= ~CLK_ROOT_AUTO_EN;
__raw_writel(val, &imx_ccm->root[clock_id].target_root);
return 0;
}
int clock_get_autopostdiv(enum clk_root_index clock_id, enum root_auto_div *div,
int *auto_en)
{
u32 val;
int root_entry;
struct clk_root_map *p;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
/*
* Only bus/ahb channel supports auto div.
* If unsupported, just set auto_en and div with 0.
*/
if ((p->type != CCM_BUS_CHANNEL) && (p->type != CCM_AHB_CHANNEL)) {
*auto_en = 0;
*div = 0;
return 0;
}
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
if ((val & CLK_ROOT_AUTO_EN_MASK) == 0)
*auto_en = 0;
else
*auto_en = 1;
val &= CLK_ROOT_AUTO_DIV_MASK;
val >>= CLK_ROOT_AUTO_DIV_SHIFT;
*div = val;
return 0;
}
int clock_get_target_val(enum clk_root_index clock_id, u32 *val)
{
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
*val = __raw_readl(&imx_ccm->root[clock_id].target_root);
return 0;
}
int clock_set_target_val(enum clk_root_index clock_id, u32 val)
{
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
__raw_writel(val, &imx_ccm->root[clock_id].target_root);
return 0;
}
/* Auto_div and auto_en is ignored, they are rarely used. */
int clock_root_cfg(enum clk_root_index clock_id, enum root_pre_div pre_div,
enum root_post_div post_div, enum clk_root_src clock_src)
{
u32 val;
int root_entry, src_entry;
struct clk_root_map *p;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
root_entry = select(clock_id);
if (root_entry < 0)
return -EINVAL;
p = &root_array[root_entry];
if ((p->type == CCM_CORE_CHANNEL) ||
(p->type == CCM_DRAM_PHYM_CHANNEL) ||
(p->type == CCM_DRAM_CHANNEL)) {
if (pre_div != CLK_ROOT_PRE_DIV1) {
printf("Error pre div!\n");
return -EINVAL;
}
}
/* Only 3 bit post div. */
if (p->type == CCM_DRAM_CHANNEL) {
if (post_div > CLK_ROOT_POST_DIV7) {
printf("Error post div!\n");
return -EINVAL;
}
}
if (p->type == CCM_DRAM_PHYM_CHANNEL) {
if (post_div != CLK_ROOT_POST_DIV1) {
printf("Error post div!\n");
return -EINVAL;
}
}
src_entry = src_supported(root_entry, clock_src);
if (src_entry < 0)
return -EINVAL;
val = CLK_ROOT_ON | pre_div << CLK_ROOT_PRE_DIV_SHIFT |
post_div << CLK_ROOT_POST_DIV_SHIFT |
src_entry << CLK_ROOT_MUX_SHIFT;
__raw_writel(val, &imx_ccm->root[clock_id].target_root);
return 0;
}
int clock_root_enabled(enum clk_root_index clock_id)
{
u32 val;
if (clock_id >= CLK_ROOT_MAX)
return -EINVAL;
/*
* No enable bit for DRAM controller and PHY. Just return enabled.
*/
if ((clock_id == DRAM_PHYM_CLK_ROOT) || (clock_id == DRAM_CLK_ROOT))
return 1;
val = __raw_readl(&imx_ccm->root[clock_id].target_root);
return (val & CLK_ROOT_ENABLE_MASK) ? 1 : 0;
}
/* CCGR gate operation */
int clock_enable(enum clk_ccgr_index index, bool enable)
{
if (index >= CCGR_MAX)
return -EINVAL;
if (enable)
__raw_writel(CCM_CLK_ON_MSK,
&imx_ccm->ccgr_array[index].ccgr_set);
else
__raw_writel(CCM_CLK_ON_MSK,
&imx_ccm->ccgr_array[index].ccgr_clr);
return 0;
}
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