forked from mirrors/linux
4f2a8f5898
This driver is for the ASPEED BMC SoC's GFX display hardware. This driver runs on the ARM based BMC systems, unlike the ast driver which runs on a host CPU and is is for a PCI graphics device. Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190403001909.31637-3-joel@jms.id.au
104 lines
3.7 KiB
C
104 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/* Copyright 2018 IBM Corporation */
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#include <drm/drm_device.h>
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#include <drm/drm_simple_kms_helper.h>
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struct aspeed_gfx {
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void __iomem *base;
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struct clk *clk;
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struct reset_control *rst;
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struct regmap *scu;
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struct drm_simple_display_pipe pipe;
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struct drm_connector connector;
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struct drm_fbdev_cma *fbdev;
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};
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int aspeed_gfx_create_pipe(struct drm_device *drm);
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int aspeed_gfx_create_output(struct drm_device *drm);
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#define CRT_CTRL1 0x60 /* CRT Control I */
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#define CRT_CTRL2 0x64 /* CRT Control II */
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#define CRT_STATUS 0x68 /* CRT Status */
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#define CRT_MISC 0x6c /* CRT Misc Setting */
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#define CRT_HORIZ0 0x70 /* CRT Horizontal Total & Display Enable End */
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#define CRT_HORIZ1 0x74 /* CRT Horizontal Retrace Start & End */
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#define CRT_VERT0 0x78 /* CRT Vertical Total & Display Enable End */
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#define CRT_VERT1 0x7C /* CRT Vertical Retrace Start & End */
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#define CRT_ADDR 0x80 /* CRT Display Starting Address */
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#define CRT_OFFSET 0x84 /* CRT Display Offset & Terminal Count */
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#define CRT_THROD 0x88 /* CRT Threshold */
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#define CRT_XSCALE 0x8C /* CRT Scaling-Up Factor */
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#define CRT_CURSOR0 0x90 /* CRT Hardware Cursor X & Y Offset */
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#define CRT_CURSOR1 0x94 /* CRT Hardware Cursor X & Y Position */
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#define CRT_CURSOR2 0x98 /* CRT Hardware Cursor Pattern Address */
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#define CRT_9C 0x9C
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#define CRT_OSD_H 0xA0 /* CRT OSD Horizontal Start/End */
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#define CRT_OSD_V 0xA4 /* CRT OSD Vertical Start/End */
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#define CRT_OSD_ADDR 0xA8 /* CRT OSD Pattern Address */
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#define CRT_OSD_DISP 0xAC /* CRT OSD Offset */
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#define CRT_OSD_THRESH 0xB0 /* CRT OSD Threshold & Alpha */
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#define CRT_B4 0xB4
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#define CRT_STS_V 0xB8 /* CRT Status V */
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#define CRT_SCRATCH 0xBC /* Scratchpad */
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#define CRT_BB0_ADDR 0xD0 /* CRT Display BB0 Starting Address */
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#define CRT_BB1_ADDR 0xD4 /* CRT Display BB1 Starting Address */
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#define CRT_BB_COUNT 0xD8 /* CRT Display BB Terminal Count */
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#define OSD_COLOR1 0xE0 /* OSD Color Palette Index 1 & 0 */
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#define OSD_COLOR2 0xE4 /* OSD Color Palette Index 3 & 2 */
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#define OSD_COLOR3 0xE8 /* OSD Color Palette Index 5 & 4 */
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#define OSD_COLOR4 0xEC /* OSD Color Palette Index 7 & 6 */
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#define OSD_COLOR5 0xF0 /* OSD Color Palette Index 9 & 8 */
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#define OSD_COLOR6 0xF4 /* OSD Color Palette Index 11 & 10 */
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#define OSD_COLOR7 0xF8 /* OSD Color Palette Index 13 & 12 */
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#define OSD_COLOR8 0xFC /* OSD Color Palette Index 15 & 14 */
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/* CTRL1 */
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#define CRT_CTRL_EN BIT(0)
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#define CRT_CTRL_HW_CURSOR_EN BIT(1)
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#define CRT_CTRL_OSD_EN BIT(2)
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#define CRT_CTRL_INTERLACED BIT(3)
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#define CRT_CTRL_COLOR_RGB565 (0 << 7)
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#define CRT_CTRL_COLOR_YUV444 (1 << 7)
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#define CRT_CTRL_COLOR_XRGB8888 (2 << 7)
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#define CRT_CTRL_COLOR_RGB888 (3 << 7)
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#define CRT_CTRL_COLOR_YUV444_2RGB (5 << 7)
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#define CRT_CTRL_COLOR_YUV422 (7 << 7)
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#define CRT_CTRL_COLOR_MASK GENMASK(9, 7)
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#define CRT_CTRL_HSYNC_NEGATIVE BIT(16)
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#define CRT_CTRL_VSYNC_NEGATIVE BIT(17)
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#define CRT_CTRL_VERTICAL_INTR_EN BIT(30)
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#define CRT_CTRL_VERTICAL_INTR_STS BIT(31)
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/* CTRL2 */
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#define CRT_CTRL_DAC_EN BIT(0)
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#define CRT_CTRL_VBLANK_LINE(x) (((x) << 20) & CRT_CTRL_VBLANK_LINE_MASK)
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#define CRT_CTRL_VBLANK_LINE_MASK GENMASK(20, 31)
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/* CRT_HORIZ0 */
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#define CRT_H_TOTAL(x) (x)
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#define CRT_H_DE(x) ((x) << 16)
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/* CRT_HORIZ1 */
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#define CRT_H_RS_START(x) (x)
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#define CRT_H_RS_END(x) ((x) << 16)
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/* CRT_VIRT0 */
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#define CRT_V_TOTAL(x) (x)
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#define CRT_V_DE(x) ((x) << 16)
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/* CRT_VIRT1 */
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#define CRT_V_RS_START(x) (x)
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#define CRT_V_RS_END(x) ((x) << 16)
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/* CRT_OFFSET */
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#define CRT_DISP_OFFSET(x) (x)
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#define CRT_TERM_COUNT(x) ((x) << 16)
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/* CRT_THROD */
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#define CRT_THROD_LOW(x) (x)
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#define CRT_THROD_HIGH(x) ((x) << 8)
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/* Default Threshold Seting */
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#define G5_CRT_THROD_VAL (CRT_THROD_LOW(0x24) | CRT_THROD_HIGH(0x3C))
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