/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Texas Instruments * Author: Rob Clark */ #ifndef __TILCDC_REGS_H__ #define __TILCDC_REGS_H__ /* LCDC register definitions, based on da8xx-fb */ #include #include "tilcdc_drv.h" /* LCDC Status Register */ #define LCDC_END_OF_FRAME1 BIT(9) #define LCDC_END_OF_FRAME0 BIT(8) #define LCDC_PL_LOAD_DONE BIT(6) #define LCDC_FIFO_UNDERFLOW BIT(5) #define LCDC_SYNC_LOST BIT(2) #define LCDC_FRAME_DONE BIT(0) /* LCDC DMA Control Register */ #define LCDC_DMA_BURST_SIZE(x) ((x) << 4) #define LCDC_DMA_BURST_SIZE_MASK ((0x7) << 4) #define LCDC_DMA_BURST_1 0x0 #define LCDC_DMA_BURST_2 0x1 #define LCDC_DMA_BURST_4 0x2 #define LCDC_DMA_BURST_8 0x3 #define LCDC_DMA_BURST_16 0x4 #define LCDC_DMA_FIFO_THRESHOLD(x) ((x) << 8) #define LCDC_DMA_FIFO_THRESHOLD_MASK ((0x3) << 8) #define LCDC_V1_END_OF_FRAME_INT_ENA BIT(2) #define LCDC_V2_END_OF_FRAME0_INT_ENA BIT(8) #define LCDC_V2_END_OF_FRAME1_INT_ENA BIT(9) #define LCDC_DUAL_FRAME_BUFFER_ENABLE BIT(0) /* LCDC Control Register */ #define LCDC_CLK_DIVISOR(x) ((x) << 8) #define LCDC_CLK_DIVISOR_MASK ((0xFF) << 8) #define LCDC_RASTER_MODE 0x01 /* LCDC Raster Control Register */ #define LCDC_PALETTE_LOAD_MODE(x) ((x) << 20) #define LCDC_PALETTE_LOAD_MODE_MASK ((0x3) << 20) #define PALETTE_AND_DATA 0x00 #define PALETTE_ONLY 0x01 #define DATA_ONLY 0x02 #define LCDC_MONO_8BIT_MODE BIT(9) #define LCDC_RASTER_ORDER BIT(8) #define LCDC_TFT_MODE BIT(7) #define LCDC_V1_UNDERFLOW_INT_ENA BIT(6) #define LCDC_V2_UNDERFLOW_INT_ENA BIT(5) #define LCDC_V1_PL_INT_ENA BIT(4) #define LCDC_V2_PL_INT_ENA BIT(6) #define LCDC_V1_SYNC_LOST_INT_ENA BIT(5) #define LCDC_V1_FRAME_DONE_INT_ENA BIT(3) #define LCDC_MONOCHROME_MODE BIT(1) #define LCDC_RASTER_ENABLE BIT(0) #define LCDC_TFT_ALT_ENABLE BIT(23) #define LCDC_STN_565_ENABLE BIT(24) #define LCDC_V2_DMA_CLK_EN BIT(2) #define LCDC_V2_LIDD_CLK_EN BIT(1) #define LCDC_V2_CORE_CLK_EN BIT(0) #define LCDC_V2_LPP_B10 26 #define LCDC_V2_TFT_24BPP_MODE BIT(25) #define LCDC_V2_TFT_24BPP_UNPACK BIT(26) /* LCDC Raster Timing 2 Register */ #define LCDC_AC_BIAS_TRANSITIONS_PER_INT(x) ((x) << 16) #define LCDC_AC_BIAS_TRANSITIONS_PER_INT_MASK ((0xF) << 16) #define LCDC_AC_BIAS_FREQUENCY(x) ((x) << 8) #define LCDC_AC_BIAS_FREQUENCY_MASK ((0xFF) << 8) #define LCDC_SYNC_CTRL BIT(25) #define LCDC_SYNC_EDGE BIT(24) #define LCDC_INVERT_PIXEL_CLOCK BIT(22) #define LCDC_INVERT_HSYNC BIT(21) #define LCDC_INVERT_VSYNC BIT(20) #define LCDC_LPP_B10 BIT(26) /* LCDC Block */ #define LCDC_PID_REG 0x0 #define LCDC_CTRL_REG 0x4 #define LCDC_STAT_REG 0x8 #define LCDC_RASTER_CTRL_REG 0x28 #define LCDC_RASTER_TIMING_0_REG 0x2c #define LCDC_RASTER_TIMING_1_REG 0x30 #define LCDC_RASTER_TIMING_2_REG 0x34 #define LCDC_DMA_CTRL_REG 0x40 #define LCDC_DMA_FB_BASE_ADDR_0_REG 0x44 #define LCDC_DMA_FB_CEILING_ADDR_0_REG 0x48 #define LCDC_DMA_FB_BASE_ADDR_1_REG 0x4c #define LCDC_DMA_FB_CEILING_ADDR_1_REG 0x50 /* Interrupt Registers available only in Version 2 */ #define LCDC_RAW_STAT_REG 0x58 #define LCDC_MASKED_STAT_REG 0x5c #define LCDC_INT_ENABLE_SET_REG 0x60 #define LCDC_INT_ENABLE_CLR_REG 0x64 #define LCDC_END_OF_INT_IND_REG 0x68 /* Clock registers available only on Version 2 */ #define LCDC_CLK_ENABLE_REG 0x6c #define LCDC_CLK_RESET_REG 0x70 #define LCDC_CLK_MAIN_RESET BIT(3) /* * Helpers: */ static inline void tilcdc_write(struct drm_device *dev, u32 reg, u32 data) { struct tilcdc_drm_private *priv = dev->dev_private; iowrite32(data, priv->mmio + reg); } static inline void tilcdc_write64(struct drm_device *dev, u32 reg, u64 data) { struct tilcdc_drm_private *priv = dev->dev_private; volatile void __iomem *addr = priv->mmio + reg; #if defined(iowrite64) && !defined(iowrite64_is_nonatomic) iowrite64(data, addr); #else __iowmb(); /* This compiles to strd (=64-bit write) on ARM7 */ *(volatile u64 __force *)addr = __cpu_to_le64(data); #endif } static inline u32 tilcdc_read(struct drm_device *dev, u32 reg) { struct tilcdc_drm_private *priv = dev->dev_private; return ioread32(priv->mmio + reg); } static inline void tilcdc_write_mask(struct drm_device *dev, u32 reg, u32 val, u32 mask) { tilcdc_write(dev, reg, (tilcdc_read(dev, reg) & ~mask) | (val & mask)); } static inline void tilcdc_set(struct drm_device *dev, u32 reg, u32 mask) { tilcdc_write(dev, reg, tilcdc_read(dev, reg) | mask); } static inline void tilcdc_clear(struct drm_device *dev, u32 reg, u32 mask) { tilcdc_write(dev, reg, tilcdc_read(dev, reg) & ~mask); } /* the register to read/clear irqstatus differs between v1 and v2 of the IP */ static inline u32 tilcdc_irqstatus_reg(struct drm_device *dev) { struct tilcdc_drm_private *priv = dev->dev_private; return (priv->rev == 2) ? LCDC_MASKED_STAT_REG : LCDC_STAT_REG; } static inline u32 tilcdc_read_irqstatus(struct drm_device *dev) { return tilcdc_read(dev, tilcdc_irqstatus_reg(dev)); } static inline void tilcdc_clear_irqstatus(struct drm_device *dev, u32 mask) { tilcdc_write(dev, tilcdc_irqstatus_reg(dev), mask); } #endif /* __TILCDC_REGS_H__ */