mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Amlogic Meson Video Processing Unit driver
|
||
|
|
*
|
||
|
|
* Copyright (c) 2018 BayLibre, SAS.
|
||
|
|
* Author: Neil Armstrong <narmstrong@baylibre.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "meson_vpu.h"
|
||
|
|
|
||
|
|
/* DMC Registers */
|
||
|
|
#define DMC_CAV_LUT_DATAL 0x48 /* 0x12 offset in data sheet */
|
||
|
|
#define CANVAS_WIDTH_LBIT 29
|
||
|
|
#define CANVAS_WIDTH_LWID 3
|
||
|
|
#define DMC_CAV_LUT_DATAH 0x4c /* 0x13 offset in data sheet */
|
||
|
|
#define CANVAS_WIDTH_HBIT 0
|
||
|
|
#define CANVAS_HEIGHT_BIT 9
|
||
|
|
#define CANVAS_BLKMODE_BIT 24
|
||
|
|
#define DMC_CAV_LUT_ADDR 0x50 /* 0x14 offset in data sheet */
|
||
|
|
#define CANVAS_LUT_WR_EN (0x2 << 8)
|
||
|
|
#define CANVAS_LUT_RD_EN (0x1 << 8)
|
||
|
|
|
||
|
|
void meson_canvas_setup(struct meson_vpu_priv *priv,
|
||
|
|
u32 canvas_index, u32 addr,
|
||
|
|
u32 stride, u32 height,
|
||
|
|
unsigned int wrap,
|
||
|
|
unsigned int blkmode)
|
||
|
|
{
|
||
|
|
dmc_write(DMC_CAV_LUT_DATAL,
|
||
|
|
(((addr + 7) >> 3)) |
|
||
|
|
(((stride + 7) >> 3) << CANVAS_WIDTH_LBIT));
|
||
|
|
|
||
|
|
dmc_write(DMC_CAV_LUT_DATAH,
|
||
|
|
((((stride + 7) >> 3) >> CANVAS_WIDTH_LWID) <<
|
||
|
|
CANVAS_WIDTH_HBIT) |
|
||
|
|
(height << CANVAS_HEIGHT_BIT) |
|
||
|
|
(wrap << 22) |
|
||
|
|
(blkmode << CANVAS_BLKMODE_BIT));
|
||
|
|
|
||
|
|
dmc_write(DMC_CAV_LUT_ADDR,
|
||
|
|
CANVAS_LUT_WR_EN | canvas_index);
|
||
|
|
|
||
|
|
/* Force a read-back to make sure everything is flushed. */
|
||
|
|
dmc_read(DMC_CAV_LUT_DATAH);
|
||
|
|
}
|