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u-boot/arch/arm/mach-imx/mx7/clock_slice.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

756 lines
22 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Freescale Semiconductor, Inc.
*
* Author:
* Peng Fan <Peng.Fan@freescale.com>
*/
#include <common.h>
#include <div64.h>
#include <asm/io.h>
#include <linux/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_270M_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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