diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/clk-u300.c | 718 |
1 files changed, 583 insertions, 135 deletions
diff --git a/drivers/clk/clk-u300.c b/drivers/clk/clk-u300.c index a15f7928fb11..8774e058cb6c 100644 --- a/drivers/clk/clk-u300.c +++ b/drivers/clk/clk-u300.c @@ -11,7 +11,349 @@ #include <linux/io.h> #include <linux/clk-provider.h> #include <linux/spinlock.h> -#include <mach/syscon.h> +#include <linux/of.h> + +/* 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) + /* * The clocking hierarchy currently looks like this. @@ -386,6 +728,213 @@ syscon_clk_register(struct device *dev, const char *name, return clk; } +#define U300_CLK_TYPE_SLOW 0 +#define U300_CLK_TYPE_FAST 1 +#define U300_CLK_TYPE_REST 2 + +/** + * struct u300_clock - defines the bits and pieces for a certain clock + * @type: the clock type, slow fast or rest + * @id: the bit in the slow/fast/rest register for this clock + * @hw_ctrld: whether the clock is hardware controlled + * @clk_val: a value to poke in the one-write enable/disable registers + */ +struct u300_clock { + u8 type; + u8 id; + bool hw_ctrld; + u16 clk_val; +}; + +struct u300_clock const __initconst u300_clk_lookup[] = { + { + .type = U300_CLK_TYPE_REST, + .id = 3, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_CPU_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 4, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_DMAC_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 5, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_EMIF_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 6, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_NANDIF_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 8, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_XGAM_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 9, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_SEMI_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 10, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN, + }, + { + .type = U300_CLK_TYPE_REST, + .id = 12, + .hw_ctrld = false, + /* INTCON: cannot be enabled, just taken out of reset */ + .clk_val = 0xFFFFU, + }, + { + .type = U300_CLK_TYPE_FAST, + .id = 0, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN, + }, + { + .type = U300_CLK_TYPE_FAST, + .id = 1, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_I2C0_CLK_EN, + }, + { + .type = U300_CLK_TYPE_FAST, + .id = 2, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_I2C1_CLK_EN, + }, + { + .type = U300_CLK_TYPE_FAST, + .id = 5, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_MMC_CLK_EN, + }, + { + .type = U300_CLK_TYPE_FAST, + .id = 6, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_SPI_CLK_EN, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 0, + .hw_ctrld = true, + .clk_val = U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 1, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_UART_CLK_EN, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 4, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_GPIO_CLK_EN, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 6, + .hw_ctrld = true, + /* No clock enable register bit */ + .clk_val = 0xFFFFU, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 7, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_APP_TMR_CLK_EN, + }, + { + .type = U300_CLK_TYPE_SLOW, + .id = 8, + .hw_ctrld = false, + .clk_val = U300_SYSCON_SBCER_ACC_TMR_CLK_EN, + }, +}; + +static void __init of_u300_syscon_clk_init(struct device_node *np) +{ + struct clk *clk = ERR_PTR(-EINVAL); + const char *clk_name = np->name; + const char *parent_name; + void __iomem *res_reg; + void __iomem *en_reg; + u32 clk_type; + u32 clk_id; + int i; + + if (of_property_read_u32(np, "clock-type", &clk_type)) { + pr_err("%s: syscon clock \"%s\" missing clock-type property\n", + __func__, clk_name); + return; + } + if (of_property_read_u32(np, "clock-id", &clk_id)) { + pr_err("%s: syscon clock \"%s\" missing clock-id property\n", + __func__, clk_name); + return; + } + parent_name = of_clk_get_parent_name(np, 0); + + switch (clk_type) { + case U300_CLK_TYPE_SLOW: + res_reg = syscon_vbase + U300_SYSCON_RSR; + en_reg = syscon_vbase + U300_SYSCON_CESR; + break; + case U300_CLK_TYPE_FAST: + res_reg = syscon_vbase + U300_SYSCON_RFR; + en_reg = syscon_vbase + U300_SYSCON_CEFR; + break; + case U300_CLK_TYPE_REST: + res_reg = syscon_vbase + U300_SYSCON_RRR; + en_reg = syscon_vbase + U300_SYSCON_CERR; + break; + default: + pr_err("unknown clock type %x specified\n", clk_type); + return; + } + + for (i = 0; i < ARRAY_SIZE(u300_clk_lookup); i++) { + const struct u300_clock *u3clk = &u300_clk_lookup[i]; + + if (u3clk->type == clk_type && u3clk->id == clk_id) + clk = syscon_clk_register(NULL, + clk_name, parent_name, + 0, u3clk->hw_ctrld, + res_reg, u3clk->id, + en_reg, u3clk->id, + u3clk->clk_val); + } + + if (!IS_ERR(clk)) { + of_clk_add_provider(np, of_clk_src_simple_get, clk); + + /* + * Some few system clocks - device tree does not + * represent clocks without a corresponding device node. + * for now we add these three clocks here. + */ + if (clk_type == U300_CLK_TYPE_REST && clk_id == 5) + clk_register_clkdev(clk, NULL, "pl172"); + if (clk_type == U300_CLK_TYPE_REST && clk_id == 9) + clk_register_clkdev(clk, NULL, "semi"); + if (clk_type == U300_CLK_TYPE_REST && clk_id == 12) + clk_register_clkdev(clk, NULL, "intcon"); + } +} + /** * struct clk_mclk - U300 MCLK clock (MMC/SD clock) * @hw: corresponding clock hardware entry @@ -590,10 +1139,41 @@ mclk_clk_register(struct device *dev, const char *name, return clk; } +static void __init of_u300_syscon_mclk_init(struct device_node *np) +{ + struct clk *clk = ERR_PTR(-EINVAL); + const char *clk_name = np->name; + const char *parent_name; + + parent_name = of_clk_get_parent_name(np, 0); + clk = mclk_clk_register(NULL, clk_name, parent_name, false); + if (!IS_ERR(clk)) + of_clk_add_provider(np, of_clk_src_simple_get, clk); +} + +static const __initconst struct of_device_id u300_clk_match[] = { + { + .compatible = "fixed-clock", + .data = of_fixed_clk_setup, + }, + { + .compatible = "fixed-factor-clock", + .data = of_fixed_factor_clk_setup, + }, + { + .compatible = "stericsson,u300-syscon-clk", + .data = of_u300_syscon_clk_init, + }, + { + .compatible = "stericsson,u300-syscon-mclk", + .data = of_u300_syscon_mclk_init, + }, +}; + + void __init u300_clk_init(void __iomem *base) { u16 val; - struct clk *clk; syscon_vbase = base; @@ -610,137 +1190,5 @@ void __init u300_clk_init(void __iomem *base) 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"); + of_clk_init(u300_clk_match); } |