linux_dsm_epyc7002/drivers/gpu/drm/meson/meson_dw_hdmi.h
Neil Armstrong 3b7c1237a7 drm/meson: Add G12A support for the DW-HDMI Glue
The Amlogic G12A embeds the same Synopsys DW-HDMI Controller,
but with :
- a "backport" of the HDR signaling registers from more recent
  DW-HDMI controllers, this will need a tweak since it's not
  normally present on this version of the DW-HDMI controller
- A direct mapping of TOP and DW-HDMI registers instead of an
  internal bus accessed using read/write registers
- Support for RX-SENSE, but not yet implemented
- Support for HDMI 2.1 Dynamic HDR, but not yet implemented
- Different registers mapping for the HDMI PHY setup

This patchs adds support for these changes while providing exact
same support as the previous GXBB, GXL & GXM SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190325141824.21259-12-narmstrong@baylibre.com
2019-04-09 11:26:08 +02:00

169 lines
6.7 KiB
C

/*
* Copyright (C) 2016 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MESON_DW_HDMI_H
#define __MESON_DW_HDMI_H
/*
* Bit 15-10: RW Reserved. Default 1 starting from G12A
* Bit 9 RW sw_reset_i2c starting from G12A
* Bit 8 RW sw_reset_axiarb starting from G12A
* Bit 7 RW Reserved. Default 1, sw_reset_emp starting from G12A
* Bit 6 RW Reserved. Default 1, sw_reset_flt starting from G12A
* Bit 5 RW Reserved. Default 1, sw_reset_hdcp22 starting from G12A
* Bit 4 RW sw_reset_phyif: PHY interface. 1=Apply reset; 0=Release from reset.
* Default 1.
* Bit 3 RW sw_reset_intr: interrupt module. 1=Apply reset;
* 0=Release from reset.
* Default 1.
* Bit 2 RW sw_reset_mem: KSV/REVOC mem. 1=Apply reset; 0=Release from reset.
* Default 1.
* Bit 1 RW sw_reset_rnd: random number interface to HDCP. 1=Apply reset;
* 0=Release from reset. Default 1.
* Bit 0 RW sw_reset_core: connects to IP's ~irstz. 1=Apply reset;
* 0=Release from reset. Default 1.
*/
#define HDMITX_TOP_SW_RESET (0x000)
/*
* Bit 31 RW free_clk_en: 0=Enable clock gating for power saving; 1= Disable
* Bit 12 RW i2s_ws_inv:1=Invert i2s_ws; 0=No invert. Default 0.
* Bit 11 RW i2s_clk_inv: 1=Invert i2s_clk; 0=No invert. Default 0.
* Bit 10 RW spdif_clk_inv: 1=Invert spdif_clk; 0=No invert. Default 0.
* Bit 9 RW tmds_clk_inv: 1=Invert tmds_clk; 0=No invert. Default 0.
* Bit 8 RW pixel_clk_inv: 1=Invert pixel_clk; 0=No invert. Default 0.
* Bit 7 RW hdcp22_skpclk_en: starting from G12A, 1=enable; 0=disable
* Bit 6 RW hdcp22_esmclk_en: starting from G12A, 1=enable; 0=disable
* Bit 5 RW hdcp22_tmdsclk_en: starting from G12A, 1=enable; 0=disable
* Bit 4 RW cec_clk_en: 1=enable cec_clk; 0=disable. Default 0. Reserved for G12A
* Bit 3 RW i2s_clk_en: 1=enable i2s_clk; 0=disable. Default 0.
* Bit 2 RW spdif_clk_en: 1=enable spdif_clk; 0=disable. Default 0.
* Bit 1 RW tmds_clk_en: 1=enable tmds_clk; 0=disable. Default 0.
* Bit 0 RW pixel_clk_en: 1=enable pixel_clk; 0=disable. Default 0.
*/
#define HDMITX_TOP_CLK_CNTL (0x001)
/*
* Bit 31:28 RW rxsense_glitch_width: starting from G12A
* Bit 27:16 RW rxsense_valid_width: starting from G12A
* Bit 11: 0 RW hpd_valid_width: filter out width <= M*1024. Default 0.
* Bit 15:12 RW hpd_glitch_width: filter out glitch <= N. Default 0.
*/
#define HDMITX_TOP_HPD_FILTER (0x002)
/*
* intr_maskn: MASK_N, one bit per interrupt source.
* 1=Enable interrupt source; 0=Disable interrupt source. Default 0.
* [ 7] rxsense_fall starting from G12A
* [ 6] rxsense_rise starting from G12A
* [ 5] err_i2c_timeout starting from G12A
* [ 4] hdcp22_rndnum_err
* [ 3] nonce_rfrsh_rise
* [ 2] hpd_fall_intr
* [ 1] hpd_rise_intr
* [ 0] core_intr
*/
#define HDMITX_TOP_INTR_MASKN (0x003)
/*
* Bit 30: 0 RW intr_stat: For each bit, write 1 to manually set the interrupt
* bit, read back the interrupt status.
* Bit 31 R IP interrupt status
* Bit 7 RW rxsense_fall starting from G12A
* Bit 6 RW rxsense_rise starting from G12A
* Bit 5 RW err_i2c_timeout starting from G12A
* Bit 2 RW hpd_fall
* Bit 1 RW hpd_rise
* Bit 0 RW IP interrupt
*/
#define HDMITX_TOP_INTR_STAT (0x004)
/*
* [7] rxsense_fall starting from G12A
* [6] rxsense_rise starting from G12A
* [5] err_i2c_timeout starting from G12A
* [4] hdcp22_rndnum_err
* [3] nonce_rfrsh_rise
* [2] hpd_fall
* [1] hpd_rise
* [0] core_intr_rise
*/
#define HDMITX_TOP_INTR_STAT_CLR (0x005)
#define HDMITX_TOP_INTR_CORE BIT(0)
#define HDMITX_TOP_INTR_HPD_RISE BIT(1)
#define HDMITX_TOP_INTR_HPD_FALL BIT(2)
#define HDMITX_TOP_INTR_RXSENSE_RISE BIT(6)
#define HDMITX_TOP_INTR_RXSENSE_FALL BIT(7)
/* Bit 14:12 RW tmds_sel: 3'b000=Output zero; 3'b001=Output normal TMDS data;
* 3'b010=Output PRBS data; 3'b100=Output shift pattern. Default 0.
* Bit 11: 9 RW shift_pttn_repeat: 0=New pattern every clk cycle; 1=New pattern
* every 2 clk cycles; ...; 7=New pattern every 8 clk cycles. Default 0.
* Bit 8 RW shift_pttn_en: 1= Enable shift pattern generator; 0=Disable.
* Default 0.
* Bit 4: 3 RW prbs_pttn_mode: 0=PRBS11; 1=PRBS15; 2=PRBS7; 3=PRBS31. Default 0.
* Bit 2: 1 RW prbs_pttn_width: 0=idle; 1=output 8-bit pattern;
* 2=Output 1-bit pattern; 3=output 10-bit pattern. Default 0.
* Bit 0 RW prbs_pttn_en: 1=Enable PRBS generator; 0=Disable. Default 0.
*/
#define HDMITX_TOP_BIST_CNTL (0x006)
/* Bit 29:20 RW shift_pttn_data[59:50]. Default 0. */
/* Bit 19:10 RW shift_pttn_data[69:60]. Default 0. */
/* Bit 9: 0 RW shift_pttn_data[79:70]. Default 0. */
#define HDMITX_TOP_SHIFT_PTTN_012 (0x007)
/* Bit 29:20 RW shift_pttn_data[29:20]. Default 0. */
/* Bit 19:10 RW shift_pttn_data[39:30]. Default 0. */
/* Bit 9: 0 RW shift_pttn_data[49:40]. Default 0. */
#define HDMITX_TOP_SHIFT_PTTN_345 (0x008)
/* Bit 19:10 RW shift_pttn_data[ 9: 0]. Default 0. */
/* Bit 9: 0 RW shift_pttn_data[19:10]. Default 0. */
#define HDMITX_TOP_SHIFT_PTTN_67 (0x009)
/* Bit 25:16 RW tmds_clk_pttn[19:10]. Default 0. */
/* Bit 9: 0 RW tmds_clk_pttn[ 9: 0]. Default 0. */
#define HDMITX_TOP_TMDS_CLK_PTTN_01 (0x00A)
/* Bit 25:16 RW tmds_clk_pttn[39:30]. Default 0. */
/* Bit 9: 0 RW tmds_clk_pttn[29:20]. Default 0. */
#define HDMITX_TOP_TMDS_CLK_PTTN_23 (0x00B)
/* Bit 1 RW shift_tmds_clk_pttn:1=Enable shifting clk pattern,
* used when TMDS CLK rate = TMDS character rate /4. Default 0.
* Bit 0 R Reserved. Default 0.
* [ 1] shift_tmds_clk_pttn
* [ 0] load_tmds_clk_pttn
*/
#define HDMITX_TOP_TMDS_CLK_PTTN_CNTL (0x00C)
/* Bit 0 RW revocmem_wr_fail: Read back 1 to indicate Host write REVOC MEM
* failure, write 1 to clear the failure flag. Default 0.
*/
#define HDMITX_TOP_REVOCMEM_STAT (0x00D)
/* Bit 1 R filtered RxSense status
* Bit 0 R filtered HPD status.
*/
#define HDMITX_TOP_STAT0 (0x00E)
#endif /* __MESON_DW_HDMI_H */