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linux_old1/drivers/clk/clk-u300.c

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ARM: u300: convert to common clock This converts the U300 clock implementation over to use the common struct clk and moves the implementation down into drivers/clk. Since VCO isn't used in tree it was removed, it's not hard to put it back in if need be. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: trivial Makefile conflict] Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-06-20 05:44:25 +08:00
/*
* U300 clock implementation
* Copyright (C) 2007-2012 ST-Ericsson AB
* License terms: GNU General Public License (GPL) version 2
* Author: Linus Walleij <linus.walleij@stericsson.com>
* Author: Jonas Aaberg <jonas.aberg@stericsson.com>
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/clk-provider.h>
#include <linux/spinlock.h>
ARM: u300: push down syscon registers Get rid of the <mach/syscon.h> header as a prerequisite for multiplatform support. Do this by pushing the registers down to their respective drivers and deleting the unused remainder. Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-02 22:56:15 +08:00
/* APP side SYSCON registers */
/* CLK Control Register 16bit (R/W) */
#define U300_SYSCON_CCR (0x0000)
#define U300_SYSCON_CCR_I2S1_USE_VCXO (0x0040)
#define U300_SYSCON_CCR_I2S0_USE_VCXO (0x0020)
#define U300_SYSCON_CCR_TURN_VCXO_ON (0x0008)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK (0x0007)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER (0x04)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW (0x03)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE (0x02)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH (0x01)
#define U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST (0x00)
/* CLK Status Register 16bit (R/W) */
#define U300_SYSCON_CSR (0x0004)
#define U300_SYSCON_CSR_PLL208_LOCK_IND (0x0002)
#define U300_SYSCON_CSR_PLL13_LOCK_IND (0x0001)
/* Reset lines for SLOW devices 16bit (R/W) */
#define U300_SYSCON_RSR (0x0014)
#define U300_SYSCON_RSR_PPM_RESET_EN (0x0200)
#define U300_SYSCON_RSR_ACC_TMR_RESET_EN (0x0100)
#define U300_SYSCON_RSR_APP_TMR_RESET_EN (0x0080)
#define U300_SYSCON_RSR_RTC_RESET_EN (0x0040)
#define U300_SYSCON_RSR_KEYPAD_RESET_EN (0x0020)
#define U300_SYSCON_RSR_GPIO_RESET_EN (0x0010)
#define U300_SYSCON_RSR_EH_RESET_EN (0x0008)
#define U300_SYSCON_RSR_BTR_RESET_EN (0x0004)
#define U300_SYSCON_RSR_UART_RESET_EN (0x0002)
#define U300_SYSCON_RSR_SLOW_BRIDGE_RESET_EN (0x0001)
/* Reset lines for FAST devices 16bit (R/W) */
#define U300_SYSCON_RFR (0x0018)
#define U300_SYSCON_RFR_UART1_RESET_ENABLE (0x0080)
#define U300_SYSCON_RFR_SPI_RESET_ENABLE (0x0040)
#define U300_SYSCON_RFR_MMC_RESET_ENABLE (0x0020)
#define U300_SYSCON_RFR_PCM_I2S1_RESET_ENABLE (0x0010)
#define U300_SYSCON_RFR_PCM_I2S0_RESET_ENABLE (0x0008)
#define U300_SYSCON_RFR_I2C1_RESET_ENABLE (0x0004)
#define U300_SYSCON_RFR_I2C0_RESET_ENABLE (0x0002)
#define U300_SYSCON_RFR_FAST_BRIDGE_RESET_ENABLE (0x0001)
/* Reset lines for the rest of the peripherals 16bit (R/W) */
#define U300_SYSCON_RRR (0x001c)
#define U300_SYSCON_RRR_CDS_RESET_EN (0x4000)
#define U300_SYSCON_RRR_ISP_RESET_EN (0x2000)
#define U300_SYSCON_RRR_INTCON_RESET_EN (0x1000)
#define U300_SYSCON_RRR_MSPRO_RESET_EN (0x0800)
#define U300_SYSCON_RRR_XGAM_RESET_EN (0x0100)
#define U300_SYSCON_RRR_XGAM_VC_SYNC_RESET_EN (0x0080)
#define U300_SYSCON_RRR_NANDIF_RESET_EN (0x0040)
#define U300_SYSCON_RRR_EMIF_RESET_EN (0x0020)
#define U300_SYSCON_RRR_DMAC_RESET_EN (0x0010)
#define U300_SYSCON_RRR_CPU_RESET_EN (0x0008)
#define U300_SYSCON_RRR_APEX_RESET_EN (0x0004)
#define U300_SYSCON_RRR_AHB_RESET_EN (0x0002)
#define U300_SYSCON_RRR_AAIF_RESET_EN (0x0001)
/* Clock enable for SLOW peripherals 16bit (R/W) */
#define U300_SYSCON_CESR (0x0020)
#define U300_SYSCON_CESR_PPM_CLK_EN (0x0200)
#define U300_SYSCON_CESR_ACC_TMR_CLK_EN (0x0100)
#define U300_SYSCON_CESR_APP_TMR_CLK_EN (0x0080)
#define U300_SYSCON_CESR_KEYPAD_CLK_EN (0x0040)
#define U300_SYSCON_CESR_GPIO_CLK_EN (0x0010)
#define U300_SYSCON_CESR_EH_CLK_EN (0x0008)
#define U300_SYSCON_CESR_BTR_CLK_EN (0x0004)
#define U300_SYSCON_CESR_UART_CLK_EN (0x0002)
#define U300_SYSCON_CESR_SLOW_BRIDGE_CLK_EN (0x0001)
/* Clock enable for FAST peripherals 16bit (R/W) */
#define U300_SYSCON_CEFR (0x0024)
#define U300_SYSCON_CEFR_UART1_CLK_EN (0x0200)
#define U300_SYSCON_CEFR_I2S1_CORE_CLK_EN (0x0100)
#define U300_SYSCON_CEFR_I2S0_CORE_CLK_EN (0x0080)
#define U300_SYSCON_CEFR_SPI_CLK_EN (0x0040)
#define U300_SYSCON_CEFR_MMC_CLK_EN (0x0020)
#define U300_SYSCON_CEFR_I2S1_CLK_EN (0x0010)
#define U300_SYSCON_CEFR_I2S0_CLK_EN (0x0008)
#define U300_SYSCON_CEFR_I2C1_CLK_EN (0x0004)
#define U300_SYSCON_CEFR_I2C0_CLK_EN (0x0002)
#define U300_SYSCON_CEFR_FAST_BRIDGE_CLK_EN (0x0001)
/* Clock enable for the rest of the peripherals 16bit (R/W) */
#define U300_SYSCON_CERR (0x0028)
#define U300_SYSCON_CERR_CDS_CLK_EN (0x2000)
#define U300_SYSCON_CERR_ISP_CLK_EN (0x1000)
#define U300_SYSCON_CERR_MSPRO_CLK_EN (0x0800)
#define U300_SYSCON_CERR_AHB_SUBSYS_BRIDGE_CLK_EN (0x0400)
#define U300_SYSCON_CERR_SEMI_CLK_EN (0x0200)
#define U300_SYSCON_CERR_XGAM_CLK_EN (0x0100)
#define U300_SYSCON_CERR_VIDEO_ENC_CLK_EN (0x0080)
#define U300_SYSCON_CERR_NANDIF_CLK_EN (0x0040)
#define U300_SYSCON_CERR_EMIF_CLK_EN (0x0020)
#define U300_SYSCON_CERR_DMAC_CLK_EN (0x0010)
#define U300_SYSCON_CERR_CPU_CLK_EN (0x0008)
#define U300_SYSCON_CERR_APEX_CLK_EN (0x0004)
#define U300_SYSCON_CERR_AHB_CLK_EN (0x0002)
#define U300_SYSCON_CERR_AAIF_CLK_EN (0x0001)
/* Single block clock enable 16bit (-/W) */
#define U300_SYSCON_SBCER (0x002c)
#define U300_SYSCON_SBCER_PPM_CLK_EN (0x0009)
#define U300_SYSCON_SBCER_ACC_TMR_CLK_EN (0x0008)
#define U300_SYSCON_SBCER_APP_TMR_CLK_EN (0x0007)
#define U300_SYSCON_SBCER_KEYPAD_CLK_EN (0x0006)
#define U300_SYSCON_SBCER_GPIO_CLK_EN (0x0004)
#define U300_SYSCON_SBCER_EH_CLK_EN (0x0003)
#define U300_SYSCON_SBCER_BTR_CLK_EN (0x0002)
#define U300_SYSCON_SBCER_UART_CLK_EN (0x0001)
#define U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN (0x0000)
#define U300_SYSCON_SBCER_UART1_CLK_EN (0x0019)
#define U300_SYSCON_SBCER_I2S1_CORE_CLK_EN (0x0018)
#define U300_SYSCON_SBCER_I2S0_CORE_CLK_EN (0x0017)
#define U300_SYSCON_SBCER_SPI_CLK_EN (0x0016)
#define U300_SYSCON_SBCER_MMC_CLK_EN (0x0015)
#define U300_SYSCON_SBCER_I2S1_CLK_EN (0x0014)
#define U300_SYSCON_SBCER_I2S0_CLK_EN (0x0013)
#define U300_SYSCON_SBCER_I2C1_CLK_EN (0x0012)
#define U300_SYSCON_SBCER_I2C0_CLK_EN (0x0011)
#define U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN (0x0010)
#define U300_SYSCON_SBCER_CDS_CLK_EN (0x002D)
#define U300_SYSCON_SBCER_ISP_CLK_EN (0x002C)
#define U300_SYSCON_SBCER_MSPRO_CLK_EN (0x002B)
#define U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN (0x002A)
#define U300_SYSCON_SBCER_SEMI_CLK_EN (0x0029)
#define U300_SYSCON_SBCER_XGAM_CLK_EN (0x0028)
#define U300_SYSCON_SBCER_VIDEO_ENC_CLK_EN (0x0027)
#define U300_SYSCON_SBCER_NANDIF_CLK_EN (0x0026)
#define U300_SYSCON_SBCER_EMIF_CLK_EN (0x0025)
#define U300_SYSCON_SBCER_DMAC_CLK_EN (0x0024)
#define U300_SYSCON_SBCER_CPU_CLK_EN (0x0023)
#define U300_SYSCON_SBCER_APEX_CLK_EN (0x0022)
#define U300_SYSCON_SBCER_AHB_CLK_EN (0x0021)
#define U300_SYSCON_SBCER_AAIF_CLK_EN (0x0020)
/* Single block clock disable 16bit (-/W) */
#define U300_SYSCON_SBCDR (0x0030)
/* Same values as above for SBCER */
/* Clock force SLOW peripherals 16bit (R/W) */
#define U300_SYSCON_CFSR (0x003c)
#define U300_SYSCON_CFSR_PPM_CLK_FORCE_EN (0x0200)
#define U300_SYSCON_CFSR_ACC_TMR_CLK_FORCE_EN (0x0100)
#define U300_SYSCON_CFSR_APP_TMR_CLK_FORCE_EN (0x0080)
#define U300_SYSCON_CFSR_KEYPAD_CLK_FORCE_EN (0x0020)
#define U300_SYSCON_CFSR_GPIO_CLK_FORCE_EN (0x0010)
#define U300_SYSCON_CFSR_EH_CLK_FORCE_EN (0x0008)
#define U300_SYSCON_CFSR_BTR_CLK_FORCE_EN (0x0004)
#define U300_SYSCON_CFSR_UART_CLK_FORCE_EN (0x0002)
#define U300_SYSCON_CFSR_SLOW_BRIDGE_CLK_FORCE_EN (0x0001)
/* Clock force FAST peripherals 16bit (R/W) */
#define U300_SYSCON_CFFR (0x40)
/* Values not defined. Define if you want to use them. */
/* Clock force the rest of the peripherals 16bit (R/W) */
#define U300_SYSCON_CFRR (0x44)
#define U300_SYSCON_CFRR_CDS_CLK_FORCE_EN (0x2000)
#define U300_SYSCON_CFRR_ISP_CLK_FORCE_EN (0x1000)
#define U300_SYSCON_CFRR_MSPRO_CLK_FORCE_EN (0x0800)
#define U300_SYSCON_CFRR_AHB_SUBSYS_BRIDGE_CLK_FORCE_EN (0x0400)
#define U300_SYSCON_CFRR_SEMI_CLK_FORCE_EN (0x0200)
#define U300_SYSCON_CFRR_XGAM_CLK_FORCE_EN (0x0100)
#define U300_SYSCON_CFRR_VIDEO_ENC_CLK_FORCE_EN (0x0080)
#define U300_SYSCON_CFRR_NANDIF_CLK_FORCE_EN (0x0040)
#define U300_SYSCON_CFRR_EMIF_CLK_FORCE_EN (0x0020)
#define U300_SYSCON_CFRR_DMAC_CLK_FORCE_EN (0x0010)
#define U300_SYSCON_CFRR_CPU_CLK_FORCE_EN (0x0008)
#define U300_SYSCON_CFRR_APEX_CLK_FORCE_EN (0x0004)
#define U300_SYSCON_CFRR_AHB_CLK_FORCE_EN (0x0002)
#define U300_SYSCON_CFRR_AAIF_CLK_FORCE_EN (0x0001)
/* PLL208 Frequency Control 16bit (R/W) */
#define U300_SYSCON_PFCR (0x48)
#define U300_SYSCON_PFCR_DPLL_MULT_NUM (0x000F)
/* Power Management Control 16bit (R/W) */
#define U300_SYSCON_PMCR (0x50)
#define U300_SYSCON_PMCR_DCON_ENABLE (0x0002)
#define U300_SYSCON_PMCR_PWR_MGNT_ENABLE (0x0001)
/* Reset Out 16bit (R/W) */
#define U300_SYSCON_RCR (0x6c)
#define U300_SYSCON_RCR_RESOUT0_RST_N_DISABLE (0x0001)
/* EMIF Slew Rate Control 16bit (R/W) */
#define U300_SYSCON_SRCLR (0x70)
#define U300_SYSCON_SRCLR_MASK (0x03FF)
#define U300_SYSCON_SRCLR_VALUE (0x03FF)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_5_B (0x0200)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_5_A (0x0100)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_4_B (0x0080)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_4_A (0x0040)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_3_B (0x0020)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_3_A (0x0010)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_2_B (0x0008)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_2_A (0x0004)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_1_B (0x0002)
#define U300_SYSCON_SRCLR_EMIF_1_SLRC_1_A (0x0001)
/* EMIF Clock Control Register 16bit (R/W) */
#define U300_SYSCON_ECCR (0x0078)
#define U300_SYSCON_ECCR_MASK (0x000F)
#define U300_SYSCON_ECCR_EMIF_1_STATIC_CLK_EN_N_DISABLE (0x0008)
#define U300_SYSCON_ECCR_EMIF_1_RET_OUT_CLK_EN_N_DISABLE (0x0004)
#define U300_SYSCON_ECCR_EMIF_MEMCLK_RET_EN_N_DISABLE (0x0002)
#define U300_SYSCON_ECCR_EMIF_SDRCLK_RET_EN_N_DISABLE (0x0001)
/* MMC/MSPRO frequency divider register 0 16bit (R/W) */
#define U300_SYSCON_MMF0R (0x90)
#define U300_SYSCON_MMF0R_MASK (0x00FF)
#define U300_SYSCON_MMF0R_FREQ_0_HIGH_MASK (0x00F0)
#define U300_SYSCON_MMF0R_FREQ_0_LOW_MASK (0x000F)
/* MMC/MSPRO frequency divider register 1 16bit (R/W) */
#define U300_SYSCON_MMF1R (0x94)
#define U300_SYSCON_MMF1R_MASK (0x00FF)
#define U300_SYSCON_MMF1R_FREQ_1_HIGH_MASK (0x00F0)
#define U300_SYSCON_MMF1R_FREQ_1_LOW_MASK (0x000F)
/* Clock control for the MMC and MSPRO blocks 16bit (R/W) */
#define U300_SYSCON_MMCR (0x9C)
#define U300_SYSCON_MMCR_MASK (0x0003)
#define U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE (0x0002)
#define U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE (0x0001)
/* SYS_0_CLK_CONTROL first clock control 16bit (R/W) */
#define U300_SYSCON_S0CCR (0x120)
#define U300_SYSCON_S0CCR_FIELD_MASK (0x43FF)
#define U300_SYSCON_S0CCR_CLOCK_REQ (0x4000)
#define U300_SYSCON_S0CCR_CLOCK_REQ_MONITOR (0x2000)
#define U300_SYSCON_S0CCR_CLOCK_INV (0x0200)
#define U300_SYSCON_S0CCR_CLOCK_FREQ_MASK (0x01E0)
#define U300_SYSCON_S0CCR_CLOCK_SELECT_MASK (0x001E)
#define U300_SYSCON_S0CCR_CLOCK_ENABLE (0x0001)
#define U300_SYSCON_S0CCR_SEL_MCLK (0x8<<1)
#define U300_SYSCON_S0CCR_SEL_ACC_FSM_CLK (0xA<<1)
#define U300_SYSCON_S0CCR_SEL_PLL60_48_CLK (0xC<<1)
#define U300_SYSCON_S0CCR_SEL_PLL60_60_CLK (0xD<<1)
#define U300_SYSCON_S0CCR_SEL_ACC_PLL208_CLK (0xE<<1)
#define U300_SYSCON_S0CCR_SEL_APP_PLL13_CLK (0x0<<1)
#define U300_SYSCON_S0CCR_SEL_APP_FSM_CLK (0x2<<1)
#define U300_SYSCON_S0CCR_SEL_RTC_CLK (0x4<<1)
#define U300_SYSCON_S0CCR_SEL_APP_PLL208_CLK (0x6<<1)
/* SYS_1_CLK_CONTROL second clock control 16 bit (R/W) */
#define U300_SYSCON_S1CCR (0x124)
#define U300_SYSCON_S1CCR_FIELD_MASK (0x43FF)
#define U300_SYSCON_S1CCR_CLOCK_REQ (0x4000)
#define U300_SYSCON_S1CCR_CLOCK_REQ_MONITOR (0x2000)
#define U300_SYSCON_S1CCR_CLOCK_INV (0x0200)
#define U300_SYSCON_S1CCR_CLOCK_FREQ_MASK (0x01E0)
#define U300_SYSCON_S1CCR_CLOCK_SELECT_MASK (0x001E)
#define U300_SYSCON_S1CCR_CLOCK_ENABLE (0x0001)
#define U300_SYSCON_S1CCR_SEL_MCLK (0x8<<1)
#define U300_SYSCON_S1CCR_SEL_ACC_FSM_CLK (0xA<<1)
#define U300_SYSCON_S1CCR_SEL_PLL60_48_CLK (0xC<<1)
#define U300_SYSCON_S1CCR_SEL_PLL60_60_CLK (0xD<<1)
#define U300_SYSCON_S1CCR_SEL_ACC_PLL208_CLK (0xE<<1)
#define U300_SYSCON_S1CCR_SEL_ACC_PLL13_CLK (0x0<<1)
#define U300_SYSCON_S1CCR_SEL_APP_FSM_CLK (0x2<<1)
#define U300_SYSCON_S1CCR_SEL_RTC_CLK (0x4<<1)
#define U300_SYSCON_S1CCR_SEL_APP_PLL208_CLK (0x6<<1)
/* SYS_2_CLK_CONTROL third clock contol 16 bit (R/W) */
#define U300_SYSCON_S2CCR (0x128)
#define U300_SYSCON_S2CCR_FIELD_MASK (0xC3FF)
#define U300_SYSCON_S2CCR_CLK_STEAL (0x8000)
#define U300_SYSCON_S2CCR_CLOCK_REQ (0x4000)
#define U300_SYSCON_S2CCR_CLOCK_REQ_MONITOR (0x2000)
#define U300_SYSCON_S2CCR_CLOCK_INV (0x0200)
#define U300_SYSCON_S2CCR_CLOCK_FREQ_MASK (0x01E0)
#define U300_SYSCON_S2CCR_CLOCK_SELECT_MASK (0x001E)
#define U300_SYSCON_S2CCR_CLOCK_ENABLE (0x0001)
#define U300_SYSCON_S2CCR_SEL_MCLK (0x8<<1)
#define U300_SYSCON_S2CCR_SEL_ACC_FSM_CLK (0xA<<1)
#define U300_SYSCON_S2CCR_SEL_PLL60_48_CLK (0xC<<1)
#define U300_SYSCON_S2CCR_SEL_PLL60_60_CLK (0xD<<1)
#define U300_SYSCON_S2CCR_SEL_ACC_PLL208_CLK (0xE<<1)
#define U300_SYSCON_S2CCR_SEL_ACC_PLL13_CLK (0x0<<1)
#define U300_SYSCON_S2CCR_SEL_APP_FSM_CLK (0x2<<1)
#define U300_SYSCON_S2CCR_SEL_RTC_CLK (0x4<<1)
#define U300_SYSCON_S2CCR_SEL_APP_PLL208_CLK (0x6<<1)
/* SC_PLL_IRQ_CONTROL 16bit (R/W) */
#define U300_SYSCON_PICR (0x0130)
#define U300_SYSCON_PICR_MASK (0x00FF)
#define U300_SYSCON_PICR_FORCE_PLL208_LOCK_LOW_ENABLE (0x0080)
#define U300_SYSCON_PICR_FORCE_PLL208_LOCK_HIGH_ENABLE (0x0040)
#define U300_SYSCON_PICR_FORCE_PLL13_LOCK_LOW_ENABLE (0x0020)
#define U300_SYSCON_PICR_FORCE_PLL13_LOCK_HIGH_ENABLE (0x0010)
#define U300_SYSCON_PICR_IRQMASK_PLL13_UNLOCK_ENABLE (0x0008)
#define U300_SYSCON_PICR_IRQMASK_PLL13_LOCK_ENABLE (0x0004)
#define U300_SYSCON_PICR_IRQMASK_PLL208_UNLOCK_ENABLE (0x0002)
#define U300_SYSCON_PICR_IRQMASK_PLL208_LOCK_ENABLE (0x0001)
/* SC_PLL_IRQ_STATUS 16 bit (R/-) */
#define U300_SYSCON_PISR (0x0134)
#define U300_SYSCON_PISR_MASK (0x000F)
#define U300_SYSCON_PISR_PLL13_UNLOCK_IND (0x0008)
#define U300_SYSCON_PISR_PLL13_LOCK_IND (0x0004)
#define U300_SYSCON_PISR_PLL208_UNLOCK_IND (0x0002)
#define U300_SYSCON_PISR_PLL208_LOCK_IND (0x0001)
/* SC_PLL_IRQ_CLEAR 16 bit (-/W) */
#define U300_SYSCON_PICLR (0x0138)
#define U300_SYSCON_PICLR_MASK (0x000F)
#define U300_SYSCON_PICLR_RWMASK (0x0000)
#define U300_SYSCON_PICLR_PLL13_UNLOCK_SC (0x0008)
#define U300_SYSCON_PICLR_PLL13_LOCK_SC (0x0004)
#define U300_SYSCON_PICLR_PLL208_UNLOCK_SC (0x0002)
#define U300_SYSCON_PICLR_PLL208_LOCK_SC (0x0001)
/* Clock activity observability register 0 */
#define U300_SYSCON_C0OAR (0x140)
#define U300_SYSCON_C0OAR_MASK (0xFFFF)
#define U300_SYSCON_C0OAR_VALUE (0xFFFF)
#define U300_SYSCON_C0OAR_BT_H_CLK (0x8000)
#define U300_SYSCON_C0OAR_ASPB_P_CLK (0x4000)
#define U300_SYSCON_C0OAR_APP_SEMI_H_CLK (0x2000)
#define U300_SYSCON_C0OAR_APP_SEMI_CLK (0x1000)
#define U300_SYSCON_C0OAR_APP_MMC_MSPRO_CLK (0x0800)
#define U300_SYSCON_C0OAR_APP_I2S1_CLK (0x0400)
#define U300_SYSCON_C0OAR_APP_I2S0_CLK (0x0200)
#define U300_SYSCON_C0OAR_APP_CPU_CLK (0x0100)
#define U300_SYSCON_C0OAR_APP_52_CLK (0x0080)
#define U300_SYSCON_C0OAR_APP_208_CLK (0x0040)
#define U300_SYSCON_C0OAR_APP_104_CLK (0x0020)
#define U300_SYSCON_C0OAR_APEX_CLK (0x0010)
#define U300_SYSCON_C0OAR_AHPB_M_H_CLK (0x0008)
#define U300_SYSCON_C0OAR_AHB_CLK (0x0004)
#define U300_SYSCON_C0OAR_AFPB_P_CLK (0x0002)
#define U300_SYSCON_C0OAR_AAIF_CLK (0x0001)
/* Clock activity observability register 1 */
#define U300_SYSCON_C1OAR (0x144)
#define U300_SYSCON_C1OAR_MASK (0x3FFE)
#define U300_SYSCON_C1OAR_VALUE (0x3FFE)
#define U300_SYSCON_C1OAR_NFIF_F_CLK (0x2000)
#define U300_SYSCON_C1OAR_MSPRO_CLK (0x1000)
#define U300_SYSCON_C1OAR_MMC_P_CLK (0x0800)
#define U300_SYSCON_C1OAR_MMC_CLK (0x0400)
#define U300_SYSCON_C1OAR_KP_P_CLK (0x0200)
#define U300_SYSCON_C1OAR_I2C1_P_CLK (0x0100)
#define U300_SYSCON_C1OAR_I2C0_P_CLK (0x0080)
#define U300_SYSCON_C1OAR_GPIO_CLK (0x0040)
#define U300_SYSCON_C1OAR_EMIF_MPMC_CLK (0x0020)
#define U300_SYSCON_C1OAR_EMIF_H_CLK (0x0010)
#define U300_SYSCON_C1OAR_EVHIST_CLK (0x0008)
#define U300_SYSCON_C1OAR_PPM_CLK (0x0004)
#define U300_SYSCON_C1OAR_DMA_CLK (0x0002)
/* Clock activity observability register 2 */
#define U300_SYSCON_C2OAR (0x148)
#define U300_SYSCON_C2OAR_MASK (0x0FFF)
#define U300_SYSCON_C2OAR_VALUE (0x0FFF)
#define U300_SYSCON_C2OAR_XGAM_CDI_CLK (0x0800)
#define U300_SYSCON_C2OAR_XGAM_CLK (0x0400)
#define U300_SYSCON_C2OAR_VC_H_CLK (0x0200)
#define U300_SYSCON_C2OAR_VC_CLK (0x0100)
#define U300_SYSCON_C2OAR_UA_P_CLK (0x0080)
#define U300_SYSCON_C2OAR_TMR1_CLK (0x0040)
#define U300_SYSCON_C2OAR_TMR0_CLK (0x0020)
#define U300_SYSCON_C2OAR_SPI_P_CLK (0x0010)
#define U300_SYSCON_C2OAR_PCM_I2S1_CORE_CLK (0x0008)
#define U300_SYSCON_C2OAR_PCM_I2S1_CLK (0x0004)
#define U300_SYSCON_C2OAR_PCM_I2S0_CORE_CLK (0x0002)
#define U300_SYSCON_C2OAR_PCM_I2S0_CLK (0x0001)
ARM: u300: convert to common clock This converts the U300 clock implementation over to use the common struct clk and moves the implementation down into drivers/clk. Since VCO isn't used in tree it was removed, it's not hard to put it back in if need be. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: trivial Makefile conflict] Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-06-20 05:44:25 +08:00
/*
* The clocking hierarchy currently looks like this.
* NOTE: the idea is NOT to show how the clocks are routed on the chip!
* The ideas is to show dependencies, so a clock higher up in the
* hierarchy has to be on in order for another clock to be on. Now,
* both CPU and DMA can actually be on top of the hierarchy, and that
* is not modeled currently. Instead we have the backbone AMBA bus on
* top. This bus cannot be programmed in any way but conceptually it
* needs to be active for the bridges and devices to transport data.
*
* Please be aware that a few clocks are hw controlled, which mean that
* the hw itself can turn on/off or change the rate of the clock when
* needed!
*
* AMBA bus
* |
* +- CPU
* +- FSMC NANDIF NAND Flash interface
* +- SEMI Shared Memory interface
* +- ISP Image Signal Processor (U335 only)
* +- CDS (U335 only)
* +- DMA Direct Memory Access Controller
* +- AAIF APP/ACC Inteface (Mobile Scalable Link, MSL)
* +- APEX
* +- VIDEO_ENC AVE2/3 Video Encoder
* +- XGAM Graphics Accelerator Controller
* +- AHB
* |
* +- ahb:0 AHB Bridge
* | |
* | +- ahb:1 INTCON Interrupt controller
* | +- ahb:3 MSPRO Memory Stick Pro controller
* | +- ahb:4 EMIF External Memory interface
* |
* +- fast:0 FAST bridge
* | |
* | +- fast:1 MMCSD MMC/SD card reader controller
* | +- fast:2 I2S0 PCM I2S channel 0 controller
* | +- fast:3 I2S1 PCM I2S channel 1 controller
* | +- fast:4 I2C0 I2C channel 0 controller
* | +- fast:5 I2C1 I2C channel 1 controller
* | +- fast:6 SPI SPI controller
* | +- fast:7 UART1 Secondary UART (U335 only)
* |
* +- slow:0 SLOW bridge
* |
* +- slow:1 SYSCON (not possible to control)
* +- slow:2 WDOG Watchdog
* +- slow:3 UART0 primary UART
* +- slow:4 TIMER_APP Application timer - used in Linux
* +- slow:5 KEYPAD controller
* +- slow:6 GPIO controller
* +- slow:7 RTC controller
* +- slow:8 BT Bus Tracer (not used currently)
* +- slow:9 EH Event Handler (not used currently)
* +- slow:a TIMER_ACC Access style timer (not used currently)
* +- slow:b PPM (U335 only, what is that?)
*/
/* Global syscon virtual base */
static void __iomem *syscon_vbase;
/**
* struct clk_syscon - U300 syscon clock
* @hw: corresponding clock hardware entry
* @hw_ctrld: whether this clock is hardware controlled (for refcount etc)
* and does not need any magic pokes to be enabled/disabled
* @reset: state holder, whether this block's reset line is asserted or not
* @res_reg: reset line enable/disable flag register
* @res_bit: bit for resetting or taking this consumer out of reset
* @en_reg: clock line enable/disable flag register
* @en_bit: bit for enabling/disabling this consumer clock line
* @clk_val: magic value to poke in the register to enable/disable
* this one clock
*/
struct clk_syscon {
struct clk_hw hw;
bool hw_ctrld;
bool reset;
void __iomem *res_reg;
u8 res_bit;
void __iomem *en_reg;
u8 en_bit;
u16 clk_val;
};
#define to_syscon(_hw) container_of(_hw, struct clk_syscon, hw)
static DEFINE_SPINLOCK(syscon_resetreg_lock);
/*
* Reset control functions. We remember if a block has been
* taken out of reset and don't remove the reset assertion again
* and vice versa. Currently we only remove resets so the
* enablement function is defined out.
*/
static void syscon_block_reset_enable(struct clk_syscon *sclk)
{
unsigned long iflags;
u16 val;
/* Not all blocks support resetting */
if (!sclk->res_reg)
return;
spin_lock_irqsave(&syscon_resetreg_lock, iflags);
val = readw(sclk->res_reg);
val |= BIT(sclk->res_bit);
writew(val, sclk->res_reg);
spin_unlock_irqrestore(&syscon_resetreg_lock, iflags);
sclk->reset = true;
}
static void syscon_block_reset_disable(struct clk_syscon *sclk)
{
unsigned long iflags;
u16 val;
/* Not all blocks support resetting */
if (!sclk->res_reg)
return;
spin_lock_irqsave(&syscon_resetreg_lock, iflags);
val = readw(sclk->res_reg);
val &= ~BIT(sclk->res_bit);
writew(val, sclk->res_reg);
spin_unlock_irqrestore(&syscon_resetreg_lock, iflags);
sclk->reset = false;
}
static int syscon_clk_prepare(struct clk_hw *hw)
{
struct clk_syscon *sclk = to_syscon(hw);
/* If the block is in reset, bring it out */
if (sclk->reset)
syscon_block_reset_disable(sclk);
return 0;
}
static void syscon_clk_unprepare(struct clk_hw *hw)
{
struct clk_syscon *sclk = to_syscon(hw);
/* Please don't force the console into reset */
if (sclk->clk_val == U300_SYSCON_SBCER_UART_CLK_EN)
return;
/* When unpreparing, force block into reset */
if (!sclk->reset)
syscon_block_reset_enable(sclk);
}
static int syscon_clk_enable(struct clk_hw *hw)
{
struct clk_syscon *sclk = to_syscon(hw);
/* Don't touch the hardware controlled clocks */
if (sclk->hw_ctrld)
return 0;
/* These cannot be controlled */
if (sclk->clk_val == 0xFFFFU)
return 0;
writew(sclk->clk_val, syscon_vbase + U300_SYSCON_SBCER);
return 0;
}
static void syscon_clk_disable(struct clk_hw *hw)
{
struct clk_syscon *sclk = to_syscon(hw);
/* Don't touch the hardware controlled clocks */
if (sclk->hw_ctrld)
return;
if (sclk->clk_val == 0xFFFFU)
return;
/* Please don't disable the console port */
if (sclk->clk_val == U300_SYSCON_SBCER_UART_CLK_EN)
return;
writew(sclk->clk_val, syscon_vbase + U300_SYSCON_SBCDR);
}
static int syscon_clk_is_enabled(struct clk_hw *hw)
{
struct clk_syscon *sclk = to_syscon(hw);
u16 val;
/* If no enable register defined, it's always-on */
if (!sclk->en_reg)
return 1;
val = readw(sclk->en_reg);
val &= BIT(sclk->en_bit);
return val ? 1 : 0;
}
static u16 syscon_get_perf(void)
{
u16 val;
val = readw(syscon_vbase + U300_SYSCON_CCR);
val &= U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK;
return val;
}
static unsigned long
syscon_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_syscon *sclk = to_syscon(hw);
u16 perf = syscon_get_perf();
switch(sclk->clk_val) {
case U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN:
case U300_SYSCON_SBCER_I2C0_CLK_EN:
case U300_SYSCON_SBCER_I2C1_CLK_EN:
case U300_SYSCON_SBCER_MMC_CLK_EN:
case U300_SYSCON_SBCER_SPI_CLK_EN:
/* The FAST clocks have one progression */
switch(perf) {
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW:
return 13000000;
default:
return parent_rate; /* 26 MHz */
}
case U300_SYSCON_SBCER_DMAC_CLK_EN:
case U300_SYSCON_SBCER_NANDIF_CLK_EN:
case U300_SYSCON_SBCER_XGAM_CLK_EN:
/* AMBA interconnect peripherals */
switch(perf) {
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW:
return 6500000;
case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE:
return 26000000;
default:
return parent_rate; /* 52 MHz */
}
case U300_SYSCON_SBCER_SEMI_CLK_EN:
case U300_SYSCON_SBCER_EMIF_CLK_EN:
/* EMIF speeds */
switch(perf) {
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW:
return 13000000;
case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE:
return 52000000;
default:
return 104000000;
}
case U300_SYSCON_SBCER_CPU_CLK_EN:
/* And the fast CPU clock */
switch(perf) {
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW:
return 13000000;
case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE:
return 52000000;
case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH:
return 104000000;
default:
return parent_rate; /* 208 MHz */
}
default:
/*
* The SLOW clocks and default just inherit the rate of
* their parent (typically PLL13 13 MHz).
*/
return parent_rate;
}
}
static long
syscon_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_syscon *sclk = to_syscon(hw);
if (sclk->clk_val != U300_SYSCON_SBCER_CPU_CLK_EN)
return *prate;
/* We really only support setting the rate of the CPU clock */
if (rate <= 13000000)
return 13000000;
if (rate <= 52000000)
return 52000000;
if (rate <= 104000000)
return 104000000;
return 208000000;
}
static int syscon_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_syscon *sclk = to_syscon(hw);
u16 val;
/* We only support setting the rate of the CPU clock */
if (sclk->clk_val != U300_SYSCON_SBCER_CPU_CLK_EN)
return -EINVAL;
switch (rate) {
case 13000000:
val = U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER;
break;
case 52000000:
val = U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE;
break;
case 104000000:
val = U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH;
break;
case 208000000:
val = U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST;
break;
default:
return -EINVAL;
}
val |= readw(syscon_vbase + U300_SYSCON_CCR) &
~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK ;
writew(val, syscon_vbase + U300_SYSCON_CCR);
return 0;
}
static const struct clk_ops syscon_clk_ops = {
.prepare = syscon_clk_prepare,
.unprepare = syscon_clk_unprepare,
.enable = syscon_clk_enable,
.disable = syscon_clk_disable,
.is_enabled = syscon_clk_is_enabled,
.recalc_rate = syscon_clk_recalc_rate,
.round_rate = syscon_clk_round_rate,
.set_rate = syscon_clk_set_rate,
};
static struct clk * __init
syscon_clk_register(struct device *dev, const char *name,
const char *parent_name, unsigned long flags,
bool hw_ctrld,
void __iomem *res_reg, u8 res_bit,
void __iomem *en_reg, u8 en_bit,
u16 clk_val)
{
struct clk *clk;
struct clk_syscon *sclk;
struct clk_init_data init;
sclk = kzalloc(sizeof(struct clk_syscon), GFP_KERNEL);
if (!sclk) {
pr_err("could not allocate syscon clock %s\n",
name);
return ERR_PTR(-ENOMEM);
}
init.name = name;
init.ops = &syscon_clk_ops;
init.flags = flags;
init.parent_names = (parent_name ? &parent_name : NULL);
init.num_parents = (parent_name ? 1 : 0);
sclk->hw.init = &init;
sclk->hw_ctrld = hw_ctrld;
/* Assume the block is in reset at registration */
sclk->reset = true;
sclk->res_reg = res_reg;
sclk->res_bit = res_bit;
sclk->en_reg = en_reg;
sclk->en_bit = en_bit;
sclk->clk_val = clk_val;
clk = clk_register(dev, &sclk->hw);
if (IS_ERR(clk))
kfree(sclk);
return clk;
}
/**
* struct clk_mclk - U300 MCLK clock (MMC/SD clock)
* @hw: corresponding clock hardware entry
* @is_mspro: if this is the memory stick clock rather than MMC/SD
*/
struct clk_mclk {
struct clk_hw hw;
bool is_mspro;
};
#define to_mclk(_hw) container_of(_hw, struct clk_mclk, hw)
static int mclk_clk_prepare(struct clk_hw *hw)
{
struct clk_mclk *mclk = to_mclk(hw);
u16 val;
/* The MMC and MSPRO clocks need some special set-up */
if (!mclk->is_mspro) {
/* Set default MMC clock divisor to 18.9 MHz */
writew(0x0054U, syscon_vbase + U300_SYSCON_MMF0R);
val = readw(syscon_vbase + U300_SYSCON_MMCR);
/* Disable the MMC feedback clock */
val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE;
/* Disable MSPRO frequency */
val &= ~U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE;
writew(val, syscon_vbase + U300_SYSCON_MMCR);
} else {
val = readw(syscon_vbase + U300_SYSCON_MMCR);
/* Disable the MMC feedback clock */
val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE;
/* Enable MSPRO frequency */
val |= U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE;
writew(val, syscon_vbase + U300_SYSCON_MMCR);
}
return 0;
}
static unsigned long
mclk_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
u16 perf = syscon_get_perf();
switch (perf) {
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER:
/*
* Here, the 208 MHz PLL gets shut down and the always
* on 13 MHz PLL used for RTC etc kicks into use
* instead.
*/
return 13000000;
case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH:
case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST:
{
/*
* This clock is under program control. The register is
* divided in two nybbles, bit 7-4 gives cycles-1 to count
* high, bit 3-0 gives cycles-1 to count low. Distribute
* these with no more than 1 cycle difference between
* low and high and add low and high to get the actual
* divisor. The base PLL is 208 MHz. Writing 0x00 will
* divide by 1 and 1 so the highest frequency possible
* is 104 MHz.
*
* e.g. 0x54 =>
* f = 208 / ((5+1) + (4+1)) = 208 / 11 = 18.9 MHz
*/
u16 val = readw(syscon_vbase + U300_SYSCON_MMF0R) &
U300_SYSCON_MMF0R_MASK;
switch (val) {
case 0x0054:
return 18900000;
case 0x0044:
return 20800000;
case 0x0043:
return 23100000;
case 0x0033:
return 26000000;
case 0x0032:
return 29700000;
case 0x0022:
return 34700000;
case 0x0021:
return 41600000;
case 0x0011:
return 52000000;
case 0x0000:
return 104000000;
default:
break;
}
}
default:
break;
}
return parent_rate;
}
static long
mclk_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
if (rate <= 18900000)
return 18900000;
if (rate <= 20800000)
return 20800000;
if (rate <= 23100000)
return 23100000;
if (rate <= 26000000)
return 26000000;
if (rate <= 29700000)
return 29700000;
if (rate <= 34700000)
return 34700000;
if (rate <= 41600000)
return 41600000;
/* Highest rate */
return 52000000;
}
static int mclk_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
u16 val;
u16 reg;
switch (rate) {
case 18900000:
val = 0x0054;
break;
case 20800000:
val = 0x0044;
break;
case 23100000:
val = 0x0043;
break;
case 26000000:
val = 0x0033;
break;
case 29700000:
val = 0x0032;
break;
case 34700000:
val = 0x0022;
break;
case 41600000:
val = 0x0021;
break;
case 52000000:
val = 0x0011;
break;
case 104000000:
val = 0x0000;
break;
default:
return -EINVAL;
}
reg = readw(syscon_vbase + U300_SYSCON_MMF0R) &
~U300_SYSCON_MMF0R_MASK;
writew(reg | val, syscon_vbase + U300_SYSCON_MMF0R);
return 0;
}
static const struct clk_ops mclk_ops = {
.prepare = mclk_clk_prepare,
.recalc_rate = mclk_clk_recalc_rate,
.round_rate = mclk_clk_round_rate,
.set_rate = mclk_clk_set_rate,
};
static struct clk * __init
mclk_clk_register(struct device *dev, const char *name,
const char *parent_name, bool is_mspro)
{
struct clk *clk;
struct clk_mclk *mclk;
struct clk_init_data init;
mclk = kzalloc(sizeof(struct clk_mclk), GFP_KERNEL);
if (!mclk) {
pr_err("could not allocate MMC/SD clock %s\n",
name);
return ERR_PTR(-ENOMEM);
}
init.name = "mclk";
init.ops = &mclk_ops;
init.flags = 0;
init.parent_names = (parent_name ? &parent_name : NULL);
init.num_parents = (parent_name ? 1 : 0);
mclk->hw.init = &init;
mclk->is_mspro = is_mspro;
clk = clk_register(dev, &mclk->hw);
if (IS_ERR(clk))
kfree(mclk);
return clk;
}
void __init u300_clk_init(void __iomem *base)
{
u16 val;
struct clk *clk;
syscon_vbase = base;
/* Set system to run at PLL208, max performance, a known state. */
val = readw(syscon_vbase + U300_SYSCON_CCR);
val &= ~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK;
writew(val, syscon_vbase + U300_SYSCON_CCR);
/* Wait for the PLL208 to lock if not locked in yet */
while (!(readw(syscon_vbase + U300_SYSCON_CSR) &
U300_SYSCON_CSR_PLL208_LOCK_IND));
/* Power management enable */
val = readw(syscon_vbase + U300_SYSCON_PMCR);
val |= U300_SYSCON_PMCR_PWR_MGNT_ENABLE;
writew(val, syscon_vbase + U300_SYSCON_PMCR);
/* These are always available (RTC and PLL13) */
clk = clk_register_fixed_rate(NULL, "app_32_clk", NULL,
CLK_IS_ROOT, 32768);
/* The watchdog sits directly on the 32 kHz clock */
clk_register_clkdev(clk, NULL, "coh901327_wdog");
clk = clk_register_fixed_rate(NULL, "pll13", NULL,
CLK_IS_ROOT, 13000000);
/* These derive from PLL208 */
clk = clk_register_fixed_rate(NULL, "pll208", NULL,
CLK_IS_ROOT, 208000000);
clk = clk_register_fixed_factor(NULL, "app_208_clk", "pll208",
0, 1, 1);
clk = clk_register_fixed_factor(NULL, "app_104_clk", "pll208",
0, 1, 2);
clk = clk_register_fixed_factor(NULL, "app_52_clk", "pll208",
0, 1, 4);
/* The 52 MHz is divided down to 26 MHz */
clk = clk_register_fixed_factor(NULL, "app_26_clk", "app_52_clk",
0, 1, 2);
/* Directly on the AMBA interconnect */
clk = syscon_clk_register(NULL, "cpu_clk", "app_208_clk", 0, true,
syscon_vbase + U300_SYSCON_RRR, 3,
syscon_vbase + U300_SYSCON_CERR, 3,
U300_SYSCON_SBCER_CPU_CLK_EN);
clk = syscon_clk_register(NULL, "dmac_clk", "app_52_clk", 0, true,
syscon_vbase + U300_SYSCON_RRR, 4,
syscon_vbase + U300_SYSCON_CERR, 4,
U300_SYSCON_SBCER_DMAC_CLK_EN);
clk_register_clkdev(clk, NULL, "dma");
clk = syscon_clk_register(NULL, "fsmc_clk", "app_52_clk", 0, false,
syscon_vbase + U300_SYSCON_RRR, 6,
syscon_vbase + U300_SYSCON_CERR, 6,
U300_SYSCON_SBCER_NANDIF_CLK_EN);
clk_register_clkdev(clk, NULL, "fsmc-nand");
clk = syscon_clk_register(NULL, "xgam_clk", "app_52_clk", 0, true,
syscon_vbase + U300_SYSCON_RRR, 8,
syscon_vbase + U300_SYSCON_CERR, 8,
U300_SYSCON_SBCER_XGAM_CLK_EN);
clk_register_clkdev(clk, NULL, "xgam");
clk = syscon_clk_register(NULL, "semi_clk", "app_104_clk", 0, false,
syscon_vbase + U300_SYSCON_RRR, 9,
syscon_vbase + U300_SYSCON_CERR, 9,
U300_SYSCON_SBCER_SEMI_CLK_EN);
clk_register_clkdev(clk, NULL, "semi");
/* AHB bridge clocks */
clk = syscon_clk_register(NULL, "ahb_subsys_clk", "app_52_clk", 0, true,
syscon_vbase + U300_SYSCON_RRR, 10,
syscon_vbase + U300_SYSCON_CERR, 10,
U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN);
clk = syscon_clk_register(NULL, "intcon_clk", "ahb_subsys_clk", 0, false,
syscon_vbase + U300_SYSCON_RRR, 12,
syscon_vbase + U300_SYSCON_CERR, 12,
/* Cannot be enabled, just taken out of reset */
0xFFFFU);
clk_register_clkdev(clk, NULL, "intcon");
clk = syscon_clk_register(NULL, "emif_clk", "ahb_subsys_clk", 0, false,
syscon_vbase + U300_SYSCON_RRR, 5,
syscon_vbase + U300_SYSCON_CERR, 5,
U300_SYSCON_SBCER_EMIF_CLK_EN);
clk_register_clkdev(clk, NULL, "pl172");
/* FAST bridge clocks */
clk = syscon_clk_register(NULL, "fast_clk", "app_26_clk", 0, true,
syscon_vbase + U300_SYSCON_RFR, 0,
syscon_vbase + U300_SYSCON_CEFR, 0,
U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN);
clk = syscon_clk_register(NULL, "i2c0_p_clk", "fast_clk", 0, false,
syscon_vbase + U300_SYSCON_RFR, 1,
syscon_vbase + U300_SYSCON_CEFR, 1,
U300_SYSCON_SBCER_I2C0_CLK_EN);
clk_register_clkdev(clk, NULL, "stu300.0");
clk = syscon_clk_register(NULL, "i2c1_p_clk", "fast_clk", 0, false,
syscon_vbase + U300_SYSCON_RFR, 2,
syscon_vbase + U300_SYSCON_CEFR, 2,
U300_SYSCON_SBCER_I2C1_CLK_EN);
clk_register_clkdev(clk, NULL, "stu300.1");
clk = syscon_clk_register(NULL, "mmc_p_clk", "fast_clk", 0, false,
syscon_vbase + U300_SYSCON_RFR, 5,
syscon_vbase + U300_SYSCON_CEFR, 5,
U300_SYSCON_SBCER_MMC_CLK_EN);
clk_register_clkdev(clk, "apb_pclk", "mmci");
clk = syscon_clk_register(NULL, "spi_p_clk", "fast_clk", 0, false,
syscon_vbase + U300_SYSCON_RFR, 6,
syscon_vbase + U300_SYSCON_CEFR, 6,
U300_SYSCON_SBCER_SPI_CLK_EN);
/* The SPI has no external clock for the outward bus, uses the pclk */
clk_register_clkdev(clk, NULL, "pl022");
clk_register_clkdev(clk, "apb_pclk", "pl022");
/* SLOW bridge clocks */
clk = syscon_clk_register(NULL, "slow_clk", "pll13", 0, true,
syscon_vbase + U300_SYSCON_RSR, 0,
syscon_vbase + U300_SYSCON_CESR, 0,
U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN);
clk = syscon_clk_register(NULL, "uart0_clk", "slow_clk", 0, false,
syscon_vbase + U300_SYSCON_RSR, 1,
syscon_vbase + U300_SYSCON_CESR, 1,
U300_SYSCON_SBCER_UART_CLK_EN);
/* Same clock is used for APB and outward bus */
clk_register_clkdev(clk, NULL, "uart0");
clk_register_clkdev(clk, "apb_pclk", "uart0");
clk = syscon_clk_register(NULL, "gpio_clk", "slow_clk", 0, false,
syscon_vbase + U300_SYSCON_RSR, 4,
syscon_vbase + U300_SYSCON_CESR, 4,
U300_SYSCON_SBCER_GPIO_CLK_EN);
clk_register_clkdev(clk, NULL, "u300-gpio");
clk = syscon_clk_register(NULL, "keypad_clk", "slow_clk", 0, false,
syscon_vbase + U300_SYSCON_RSR, 5,
syscon_vbase + U300_SYSCON_CESR, 6,
U300_SYSCON_SBCER_KEYPAD_CLK_EN);
clk_register_clkdev(clk, NULL, "coh901461-keypad");
clk = syscon_clk_register(NULL, "rtc_clk", "slow_clk", 0, true,
syscon_vbase + U300_SYSCON_RSR, 6,
/* No clock enable register bit */
NULL, 0, 0xFFFFU);
clk_register_clkdev(clk, NULL, "rtc-coh901331");
clk = syscon_clk_register(NULL, "app_tmr_clk", "slow_clk", 0, false,
syscon_vbase + U300_SYSCON_RSR, 7,
syscon_vbase + U300_SYSCON_CESR, 7,
U300_SYSCON_SBCER_APP_TMR_CLK_EN);
clk_register_clkdev(clk, NULL, "apptimer");
clk = syscon_clk_register(NULL, "acc_tmr_clk", "slow_clk", 0, false,
syscon_vbase + U300_SYSCON_RSR, 8,
syscon_vbase + U300_SYSCON_CESR, 8,
U300_SYSCON_SBCER_ACC_TMR_CLK_EN);
clk_register_clkdev(clk, NULL, "timer");
/* Then this special MMC/SD clock */
clk = mclk_clk_register(NULL, "mmc_clk", "mmc_p_clk", false);
clk_register_clkdev(clk, NULL, "mmci");
}