diff options
Diffstat (limited to 'src/soc/qualcomm/sc7180/display')
| -rw-r--r-- | src/soc/qualcomm/sc7180/display/dsi.c | 152 |
1 files changed, 143 insertions, 9 deletions
diff --git a/src/soc/qualcomm/sc7180/display/dsi.c b/src/soc/qualcomm/sc7180/display/dsi.c index 016531bda3..268200809a 100644 --- a/src/soc/qualcomm/sc7180/display/dsi.c +++ b/src/soc/qualcomm/sc7180/display/dsi.c @@ -2,10 +2,15 @@ #include <device/mmio.h> #include <console/console.h> +#include <assert.h> #include <edid.h> +#include <delay.h> +#include <symbols.h> #include <types.h> -#include <soc/display/mdssreg.h> +#include <string.h> #include <soc/display/mipi_dsi.h> +#include <soc/display/panel.h> +#include <soc/display/mdssreg.h> #include <soc/display/dsi_phy.h> #define DSI_DMA_STREAM1 0x0 @@ -17,6 +22,7 @@ #define DSI_WC1 0x0 #define DSI_EOF_BLLP_PWR 0x9 #define DSI_DMA_TRIGGER_SEL 0x4 +#define TRAFFIC_MODE 0x1 #define DSI_EN 0x1 #define DSI_CLKLN_EN 0x1 @@ -24,6 +30,11 @@ #define HS_TX_TO 0xEA60 #define TIMER_RESOLUTION 0x4 +#define DSI_PAYLOAD_BYTE_BOUND 8 +#define DSI_PAYLOAD_SIZE_ALIGN 4 +#define DSI_CMD_DMA_TPG_EN BIT(1) +#define DSI_TPG_DMA_FIFO_MODE BIT(2) +#define DSI_CMD_DMA_PATTERN_SEL (BIT(16) | BIT(17)) static void mdss_dsi_host_init(int num_of_lanes) { @@ -55,11 +66,13 @@ static void mdss_dsi_host_init(int num_of_lanes) */ ctrl_mode |= BIT(1); + mdss_dsi_clock_config(); write32(&dsi0->trig_ctrl, DSI_DMA_STREAM1 << 8 | DSI_DMA_TRIGGER_SEL); write32(&dsi0->ctrl, dlnx_en << 4 | ctrl_mode); write32(&dsi0->cmd_mode_dma_ctrl, - DSI_EMBED_MODE1 << 28 | DSI_POWER_MODE2 << 26 | - DSI_PACK_TYPE1 << 24 | DSI_VC1 << 22 | DSI_DT1 << 16 | DSI_WC1); + DSI_EMBED_MODE1 << 28 | DSI_POWER_MODE2 << 26 | + DSI_PACK_TYPE1 << 24 | DSI_VC1 << 22 | DSI_DT1 << 16 | DSI_WC1); + write32(&dsi0->eot_packet_ctrl, 0x1); } static void mdss_dsi_reset(void) @@ -106,8 +119,6 @@ void mdss_dsi_video_mode_config(struct edid *edid, uint32_t bpp) vfp = edid->mode.vso; vbp = edid->mode.vbl - edid->mode.vso; - mdss_dsi_clock_config(); - write32(&dsi0->video_mode_active_h, ((edid->mode.ha + hbp) << 16) | hbp); @@ -121,12 +132,12 @@ void mdss_dsi_video_mode_config(struct edid *edid, uint32_t bpp) (edid->mode.ha + hfp + hbp - 1)); - write32(&dsi0->video_mode_active_hsync, (edid->mode.hspw << 16) | 0); + write32(&dsi0->video_mode_active_hsync, (edid->mode.hspw << 16)); write32(&dsi0->video_mode_active_vsync, 0x0); - write32(&dsi0->video_mode_active_vsync_vpos, edid->mode.vspw << 16 | 0); + write32(&dsi0->video_mode_active_vsync_vpos, edid->mode.vspw << 16); write32(&dsi0->video_mode_ctrl, - DSI_EOF_BLLP_PWR << 12 | dst_format << 4); + DSI_EOF_BLLP_PWR << 12 | dst_format << 4 | TRAFFIC_MODE << 8); write32(&dsi0->hs_timer_ctrl, HS_TX_TO | TIMER_RESOLUTION << 16); @@ -153,9 +164,132 @@ void mdss_dsi_clock_config(void) setbits32(&dsi0->clk_ctrl, DSI_AHBM_SCLK_ON | DSI_FORCE_ON_DYN_AHBM_HCLK); /* Clock for MDP/DSI, for DMA out from MDP */ - setbits32(&dsi0->clk_ctrl, DSI_FORCE_ON_DYN_AHBM_HCLK); + setbits32(&dsi0->clk_ctrl, DSI_PCLK_ON); /* Clock for rest of DSI */ setbits32(&dsi0->clk_ctrl, DSI_AHBS_HCLK_ON | DSI_DSICLK_ON | DSI_BYTECLK_ON | DSI_ESCCLK_ON); } + +static void mdss_dsi_set_intr(void) +{ + write32(&dsi0->int_ctrl, 0x0); + + /* Enable all HW interrupts. */ + setbits32(&dsi0->int_ctrl, DSI_CMD_MODE_DMA_DONE_MASK | DSI_CMD_MODE_MDP_DONE_MASK | + DSI_VIDEO_MODE_DONE_MASK | DSI_ERROR_MASK | DSI_BTA_DONE_MASK); +} + +static int mdss_dsi_cmd_dma_trigger_for_panel(void) +{ + uint32_t read_value; + uint32_t count = 0; + int status = 0; + + mdss_dsi_set_intr(); + write32(&dsi0->cmd_mode_dma_sw_trigger, 0x1); + dsb(); + + read_value = read32(&dsi0->int_ctrl) & 0x1; + + while (read_value != 0x1) { + read_value = read32(&dsi0->int_ctrl) & 0x1; + count++; + if (count > 0xffff) { + status = -1; + printk(BIOS_ERR, + "Panel CMD: count :%d command mode dma test failed\n", count); + printk(BIOS_ERR, + "Panel CMD: read value = %x, addr=%p\n", + read_value, (&dsi0->int_ctrl)); + return status; + } + } + + write32(&dsi0->int_ctrl, (read32(&dsi0->int_ctrl) | 0x01000001)); + return status; +} + +static int mdss_dsi_cmds_tx(struct mipi_dsi_cmd *cmds, int count) +{ + struct mipi_dsi_cmd *cm; + uint8_t *pload = _dma_coherent; + uint32_t size; + int data = 0; + int ret = 0; + uint32_t *bp = NULL; + + cm = cmds; + + for (int i = 0; i < count; i++) { + /* The payload size has to be a multiple of 4 */ + size = ALIGN_UP(cm->size, DSI_PAYLOAD_SIZE_ALIGN); + assert(size < DSI_PAYLOAD_BYTE_BOUND); + memcpy(pload, (cm[i].payload), size); + + bp = (uint32_t *)pload; + + /* Enable custom pattern stored in TPG DMA FIFO */ + data = DSI_CMD_DMA_PATTERN_SEL; + + /* select CMD_DMA_FIFO_MODE to 1 */ + data |= DSI_TPG_DMA_FIFO_MODE; + data |= DSI_CMD_DMA_TPG_EN; + + write32(&dsi0->test_pattern_gen_ctrl, data); + for (int j = 0; j < size; j += 4) { + write32(&dsi0->test_pattern_gen_cmd_dma_init_val, *bp); + bp++; + } + + if ((size % 8) != 0) + write32(&dsi0->test_pattern_gen_cmd_dma_init_val, 0x0); + + write32(&dsi0->dma_cmd_length, size); + write32(&dsi0->cmd_mode_dma_sw_trigger, 0x1); + ret += mdss_dsi_cmd_dma_trigger_for_panel(); + + /* Reset the DMA TPG FIFO */ + write32(&dsi0->tpg_dma_fifo_reset, 0x1); + write32(&dsi0->tpg_dma_fifo_reset, 0x0); + + /* Disable CMD_DMA_TPG */ + write32(&dsi0->test_pattern_gen_ctrl, 0x0); + if (cm[i].delay_us) + udelay(cm[i].delay_us); + else + udelay(80); + } + + return ret; +} + +static void mdss_dsi_clear_intr(void) +{ + write32(&dsi0->int_ctrl, 0x0); + + /* Clear all the hardware interrupts */ + setbits32(&dsi0->int_ctrl, DSI_CMD_MODE_DMA_DONE_AK | DSI_CMD_MODE_MDP_DONE_AK | + DSI_VIDEO_MODE_DONE_AK | DSI_BTA_DONE_AK | DSI_ERROR_AK); + write32(&dsi0->err_int_mask0, 0x13FF3BFF); +} + +int mdss_dsi_panel_initialize(const struct panel_data *pinfo) +{ + int status = 0; + uint32_t ctrl_mode = 0; + struct mipi_dsi_cmd *cmds; + + assert((pinfo != NULL) && (pinfo->init_cmd != NULL)); + cmds = pinfo->init_cmd; + ctrl_mode = read32(&dsi0->ctrl); + + /* Enable command mode before sending the commands */ + write32(&dsi0->ctrl, ctrl_mode | 0x04); + + status = mdss_dsi_cmds_tx(cmds, pinfo->init_cmd_count); + write32(&dsi0->ctrl, ctrl_mode); + mdss_dsi_clear_intr(); + + return status; +} |