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bdk: di: move plld setup code out of display obj

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CTCaer 2022-05-08 04:41:05 +03:00
parent 6ae4904c8f
commit b9f40fed7a
3 changed files with 38 additions and 24 deletions
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39
bdk/display/di.c
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@ -434,21 +434,10 @@ void display_init()
APB_MISC(APB_MISC_GP_DSI_PAD_CONTROL) = 0;
}
// Set DISP1 clock source and parent clock.
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_DISP1) = 0x40000000; // PLLD_OUT.
u32 plld_div = (3 << 20) | (20 << 11) | 1; // DIVM: 1, DIVN: 20, DIVP: 3. PLLD_OUT: 768 MHz, PLLD_OUT0 (DSI): 97.5 MHz (offset).
CLOCK(CLK_RST_CONTROLLER_PLLD_BASE) = PLLCX_BASE_ENABLE | PLLCX_BASE_LOCK | plld_div;
if (tegra_t210)
{
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC1) = 0x20; // PLLD_SETUP.
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC) = 0x2D0AAA; // PLLD_ENABLE_CLK.
}
else
{
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC1) = 0;
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC) = 0x2DFC00; // PLLD_ENABLE_CLK.
}
// Set DISP1 clock source, parent clock and DSI/PCLK to low power mode.
// T210: DIVM: 1, DIVN: 20, DIVP: 3. PLLD_OUT: 100.0 MHz, PLLD_OUT0 (DSI-PCLK): 50.0 MHz. (PCLK: 16.66 MHz)
// T210B01: DIVM: 1, DIVN: 20, DIVP: 3. PLLD_OUT: 97.8 MHz, PLLD_OUT0 (DSI-PCLK): 48.9 MHz. (PCLK: 16.30 MHz)
clock_enable_plld(3, 20, true, tegra_t210);
// Setup Display Interface initial window configuration.
exec_cfg((u32 *)DISPLAY_A_BASE, _di_dc_setup_win_config, CFG_SIZE(_di_dc_setup_win_config));
@ -553,15 +542,9 @@ void display_init()
// Unblank display.
_display_dsi_send_cmd(MIPI_DSI_DCS_SHORT_WRITE, MIPI_DCS_SET_DISPLAY_ON, 20000);
// Configure PLLD for DISP1.
plld_div = (1 << 20) | (24 << 11) | 1; // DIVM: 1, DIVN: 24, DIVP: 1. PLLD_OUT: 768 MHz, PLLD_OUT0 (DSI): 234 MHz (offset, it's ddr btw, so normally div2).
CLOCK(CLK_RST_CONTROLLER_PLLD_BASE) = PLLCX_BASE_ENABLE | PLLCX_BASE_LOCK | plld_div;
if (tegra_t210)
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC1) = 0x20; // PLLD_SETUP.
else
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC1) = 0;
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC) = 0x2DFC00; // Use new PLLD_SDM_DIN.
// Setup final dsi clock.
// DIVM: 1, DIVN: 24, DIVP: 1. PLLD_OUT: 468.0 MHz, PLLD_OUT0 (DSI): 234.0 MHz.
clock_enable_plld(1, 24, false, tegra_t210);
// Finalize DSI init packet sequence configuration.
DSI(_DSIREG(DSI_PAD_CONTROL_1)) = 0;
@ -688,6 +671,9 @@ static void _display_panel_and_hw_end(bool no_panel_deinit)
// Blank display.
DSI(_DSIREG(DSI_WR_DATA)) = (MIPI_DCS_SET_DISPLAY_OFF << 8) | MIPI_DSI_DCS_SHORT_WRITE;
// Wait for 5 frames (HOST1X_CH0_SYNC_SYNCPT_9).
// Not here.
// Propagate changes to all register buffers and disable host cmd packets during video.
DISPLAY_A(_DIREG(DC_CMD_STATE_ACCESS)) = READ_MUX | WRITE_MUX;
DSI(_DSIREG(DSI_VIDEO_MODE_CONTROL)) = 0;
@ -695,6 +681,11 @@ static void _display_panel_and_hw_end(bool no_panel_deinit)
// De-initialize video controller.
exec_cfg((u32 *)DISPLAY_A_BASE, _di_dc_video_disable_config, CFG_SIZE(_di_dc_video_disable_config));
// Set DISP1 clock source, parent clock and DSI/PCLK to low power mode.
// T210: DIVM: 1, DIVN: 20, DIVP: 3. PLLD_OUT: 100.0 MHz, PLLD_OUT0 (DSI-PCLK): 50.0 MHz. (PCLK: 16.66 MHz)
// T210B01: DIVM: 1, DIVN: 20, DIVP: 3. PLLD_OUT: 97.8 MHz, PLLD_OUT0 (DSI-PCLK): 48.9 MHz. (PCLK: 16.30 MHz)
clock_enable_plld(3, 20, true, hw_get_chip_id() == GP_HIDREV_MAJOR_T210);
// Set timings for lowpower clocks.
exec_cfg((u32 *)DSI_BASE, _di_dsi_timing_deinit_config, CFG_SIZE(_di_dsi_timing_deinit_config));

22
bdk/soc/clock.c
View file

@ -339,6 +339,28 @@ void clock_disable_actmon()
clock_disable(&_clock_actmon);
}
void clock_enable_plld(u32 divp, u32 divn, bool lowpower, bool tegra_t210)
{
u32 plld_div = (divp << 20) | (divn << 11) | 1;
// N divider is fractional, so N = DIVN + 1/2 + PLLD_SDM_DIN/8192.
u32 misc = 0x2D0000 | 0xFC00; // Clock enable and PLLD_SDM_DIN: -1024 -> DIVN + 0.375.
if (lowpower && tegra_t210)
misc = 0x2D0000 | 0x0AAA; // Clock enable and PLLD_SDM_DIN: 2730 -> DIVN + 0.833.
// Set DISP1 clock source and parent clock.
if (lowpower)
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_DISP1) = 0x40000000; // PLLD_OUT0.
// Set dividers and enable PLLD.
CLOCK(CLK_RST_CONTROLLER_PLLD_BASE) = PLLCX_BASE_ENABLE | PLLCX_BASE_LOCK | plld_div;
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC1) = tegra_t210 ? 0x20 : 0; // Keep default PLLD_SETUP.
// Set PLLD_SDM_DIN and enable PLLD to DSI pads.
CLOCK(CLK_RST_CONTROLLER_PLLD_MISC) = misc;
}
void clock_enable_pllx()
{
// Configure and enable PLLX if disabled.

1
bdk/soc/clock.h
View file

@ -671,6 +671,7 @@ void clock_disable_ahbdma();
void clock_enable_actmon();
void clock_disable_actmon();
void clock_enable_plld(u32 divp, u32 divn, bool lowpower, bool tegra_t210);
void clock_enable_pllx();
void clock_enable_pllc(u32 divn);
void clock_disable_pllc();