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>
diff --git a/arch/arm/cpu/armv7/mx7/clock_slice.c b/arch/arm/cpu/armv7/mx7/clock_slice.c
new file mode 100644
index 0000000..ad5d504
--- /dev/null
+++ b/arch/arm/cpu/armv7/mx7/clock_slice.c
@@ -0,0 +1,757 @@
+/*
+ * 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;
+}