video: mxsfb: support screen refresh for 2nd generation
This commit is contained in:
Suguru Saito
parent
c7fc28195d
commit
467a6e6d35
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@ -32,7 +32,11 @@
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#define BITS_PP 18
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#define BYTES_PP 4
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#ifdef CONFIG_BRAIN_2G
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struct mxs_dma_desc desc[24];
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#else
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struct mxs_dma_desc desc;
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#endif
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/**
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* mxsfb_system_setup() - Fine-tune LCDIF configuration
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@ -206,6 +210,314 @@ static int mxs_probe_common(struct udevice *dev, struct display_timing *timings,
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mxs_lcd_init(dev, fb, timings, bpp);
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#ifdef CONFIG_VIDEO_MXS_MODE_SYSTEM
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#ifdef CONFIG_BRAIN_2G
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struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
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u32 ctrl, ctrl1, ctrl2, xfer_count, width, height;
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ctrl = readl(®s->hw_lcdif_ctrl);
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ctrl1 = readl(®s->hw_lcdif_ctrl1);
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ctrl2 = readl(®s->hw_lcdif_ctrl2);
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xfer_count = readl(®s->hw_lcdif_transfer_count);
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width = ((xfer_count & LCDIF_TRANSFER_COUNT_H_COUNT_MASK) >>
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LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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height = ((xfer_count & LCDIF_TRANSFER_COUNT_V_COUNT_MASK) >>
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LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET);
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__attribute__ ((aligned (ARCH_DMA_MINALIGN)))
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static u8 lcd_data[ARCH_DMA_MINALIGN * 8];
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lcd_data[ARCH_DMA_MINALIGN * 0] = 0x2a;
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lcd_data[ARCH_DMA_MINALIGN * 1] = 0x2b;
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lcd_data[ARCH_DMA_MINALIGN * 2] = 0x2c;
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lcd_data[ARCH_DMA_MINALIGN * 3] = 0x00;
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lcd_data[ARCH_DMA_MINALIGN * 4] = (height & 0xff00) >> 8;
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lcd_data[ARCH_DMA_MINALIGN * 5] = (height & 0x00ff) - 1;
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lcd_data[ARCH_DMA_MINALIGN * 6] = (width & 0xff00) >> 8;
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lcd_data[ARCH_DMA_MINALIGN * 7] = (width & 0x00ff) - 1;
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/* Create MXS DMA command descriptors for the DMA chain */
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memset(desc, 0, sizeof(struct mxs_dma_desc) * 24);
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/* Column Address Set (2a) */
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desc[0].address = (dma_addr_t)&desc[0];
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desc[0].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[0].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[0].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[0].cmd.pio_words[2] = ctrl2;
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desc[0].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[0].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 0);
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desc[0].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 0);
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desc[0].cmd.next = (uint32_t)&desc[1].cmd;
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/* RUN */
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desc[1].address = (dma_addr_t)&desc[1];
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desc[1].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[1].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT |
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LCDIF_CTRL_RUN;
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desc[1].cmd.next = (uint32_t)&desc[2].cmd;
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/* Column Address Set - Start Column (upper byte) */
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desc[2].address = (dma_addr_t)&desc[2];
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desc[2].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[2].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[2].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[2].cmd.pio_words[2] = ctrl2;
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desc[2].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[2].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[2].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[2].cmd.next = (uint32_t)&desc[3].cmd;
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/* RUN */
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desc[3].address = (dma_addr_t)&desc[3];
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desc[3].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[3].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[3].cmd.next = (uint32_t)&desc[4].cmd;
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/* Column Address Set - Start Column (lower byte) */
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desc[4].address = (dma_addr_t)&desc[4];
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desc[4].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[4].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[4].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[4].cmd.pio_words[2] = ctrl2;
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desc[4].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[4].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[4].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[4].cmd.next = (uint32_t)&desc[5].cmd;
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/* RUN */
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desc[5].address = (dma_addr_t)&desc[5];
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desc[5].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[5].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[5].cmd.next = (uint32_t)&desc[6].cmd;
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/* Column Address Set - End Column (upper byte) */
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desc[6].address = (dma_addr_t)&desc[6];
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desc[6].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[6].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[6].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[6].cmd.pio_words[2] = ctrl2;
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desc[6].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[6].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 4);
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desc[6].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 4);
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desc[6].cmd.next = (uint32_t)&desc[7].cmd;
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/* RUN */
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desc[7].address = (dma_addr_t)&desc[7];
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desc[7].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[7].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[7].cmd.next = (uint32_t)&desc[8].cmd;
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/* Column Address Set - End Column (lower byte) */
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desc[8].address = (dma_addr_t)&desc[8];
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desc[8].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[8].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[8].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[8].cmd.pio_words[2] = ctrl2;
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desc[8].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[8].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 5);
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desc[8].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 5);
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desc[8].cmd.next = (uint32_t)&desc[9].cmd;
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/* RUN */
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desc[9].address = (dma_addr_t)&desc[9];
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desc[9].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[9].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[9].cmd.next = (uint32_t)&desc[10].cmd;
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/* Page Address Set (2b) */
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desc[10].address = (dma_addr_t)&desc[10];
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desc[10].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[10].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[10].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[10].cmd.pio_words[2] = ctrl2;
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desc[10].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[10].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 1);
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desc[10].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 1);
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desc[10].cmd.next = (uint32_t)&desc[11].cmd;
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/* RUN */
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desc[11].address = (dma_addr_t)&desc[11];
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desc[11].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[11].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT |
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LCDIF_CTRL_RUN;
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desc[11].cmd.next = (uint32_t)&desc[12].cmd;
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/* Page Address Set - Start Page (upper byte) */
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desc[12].address = (dma_addr_t)&desc[12];
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desc[12].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[12].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[12].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[12].cmd.pio_words[2] = ctrl2;
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desc[12].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[12].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[12].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[12].cmd.next = (uint32_t)&desc[13].cmd;
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/* RUN */
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desc[13].address = (dma_addr_t)&desc[13];
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desc[13].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[13].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[13].cmd.next = (uint32_t)&desc[14].cmd;
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/* Page Address Set - Start Page (lower byte) */
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desc[14].address = (dma_addr_t)&desc[14];
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desc[14].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[14].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[14].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[14].cmd.pio_words[2] = ctrl2;
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desc[14].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[14].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[14].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 3);
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desc[14].cmd.next = (uint32_t)&desc[15].cmd;
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/* RUN */
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desc[15].address = (dma_addr_t)&desc[15];
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desc[15].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[15].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[15].cmd.next = (uint32_t)&desc[16].cmd;
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/* Page Address Set - End Page (upper byte) */
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desc[16].address = (dma_addr_t)&desc[16];
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desc[16].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[16].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[16].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[16].cmd.pio_words[2] = ctrl2;
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desc[16].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[16].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 6);
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desc[16].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 6);
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desc[16].cmd.next = (uint32_t)&desc[17].cmd;
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/* RUN */
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desc[17].address = (dma_addr_t)&desc[17];
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desc[17].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
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desc[17].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
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desc[17].cmd.next = (uint32_t)&desc[18].cmd;
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/* Page Address Set - End Page (lower byte) */
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desc[18].address = (dma_addr_t)&desc[18];
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desc[18].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
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(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
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desc[18].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
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LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
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LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
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desc[18].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
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| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
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desc[18].cmd.pio_words[2] = ctrl2;
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desc[18].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
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(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
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desc[18].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 7);
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desc[18].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 7);
|
||||
desc[18].cmd.next = (uint32_t)&desc[19].cmd;
|
||||
/* RUN */
|
||||
desc[19].address = (dma_addr_t)&desc[19];
|
||||
desc[19].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
|
||||
(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
|
||||
desc[19].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
|
||||
LCDIF_CTRL_DATA_SELECT | LCDIF_CTRL_WORD_LENGTH_8BIT |
|
||||
LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT | LCDIF_CTRL_RUN;
|
||||
desc[19].cmd.next = (uint32_t)&desc[20].cmd;
|
||||
|
||||
/* Memory Write (2c) */
|
||||
desc[20].address = (dma_addr_t)&desc[20];
|
||||
desc[20].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
|
||||
(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
|
||||
desc[20].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
|
||||
LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT;
|
||||
desc[20].cmd.pio_words[1] = (ctrl1 & (~LCDIF_CTRL1_BYTE_PACKING_FORMAT_MASK))
|
||||
| (0x1 << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET);
|
||||
desc[20].cmd.pio_words[2] = ctrl2;
|
||||
desc[20].cmd.pio_words[3] = (1 << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) |
|
||||
(1 << LCDIF_TRANSFER_COUNT_H_COUNT_OFFSET);
|
||||
desc[20].cmd.pio_words[4] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 2);
|
||||
desc[20].cmd.pio_words[5] = (u32)(lcd_data + ARCH_DMA_MINALIGN * 2);
|
||||
desc[20].cmd.next = (uint32_t)&desc[21].cmd;
|
||||
/* RUN */
|
||||
desc[21].address = (dma_addr_t)&desc[21];
|
||||
desc[21].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
|
||||
(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
|
||||
desc[21].cmd.pio_words[0] = LCDIF_CTRL_LCDIF_MASTER |
|
||||
LCDIF_CTRL_WORD_LENGTH_8BIT | LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT |
|
||||
LCDIF_CTRL_RUN;
|
||||
desc[21].cmd.next = (uint32_t)&desc[22].cmd;
|
||||
|
||||
/* Restore registers */
|
||||
desc[22].address = (dma_addr_t)&desc[22];
|
||||
desc[22].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
|
||||
(6 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
|
||||
desc[22].cmd.pio_words[0] = ctrl & (~LCDIF_CTRL_RUN);
|
||||
desc[22].cmd.pio_words[1] = ctrl1;
|
||||
desc[22].cmd.pio_words[2] = ctrl2;
|
||||
desc[22].cmd.pio_words[3] = xfer_count;
|
||||
desc[22].cmd.pio_words[4] = fb;
|
||||
desc[22].cmd.pio_words[5] = fb;
|
||||
desc[22].cmd.next = (uint32_t)&desc[23].cmd;
|
||||
/* RUN */
|
||||
desc[23].address = (dma_addr_t)&desc[23];
|
||||
desc[23].cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
|
||||
(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET) | MXS_DMA_DESC_WAIT4END;
|
||||
desc[23].cmd.pio_words[0] = ctrl | LCDIF_CTRL_RUN;
|
||||
desc[23].cmd.next = (uint32_t)&desc[0].cmd;
|
||||
|
||||
/* Execute the DMA chain. */
|
||||
mxs_dma_circ_start(MXS_DMA_CHANNEL_AHB_APBH_LCDIF, desc);
|
||||
#else
|
||||
/*
|
||||
* If the LCD runs in system mode, the LCD refresh has to be triggered
|
||||
* manually by setting the RUN bit in HW_LCDIF_CTRL register. To avoid
|
||||
|
|
@ -226,6 +538,7 @@ static int mxs_probe_common(struct udevice *dev, struct display_timing *timings,
|
|||
|
||||
/* Execute the DMA chain. */
|
||||
mxs_dma_circ_start(MXS_DMA_CHANNEL_AHB_APBH_LCDIF, &desc);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue