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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c25c013611
The LVDS encoders in the D3 and E3 SoCs differ significantly from those in the other R-Car Gen3 family members: - The LVDS PLL architecture is more complex and requires computing PLL parameters manually. - The PLL uses external clocks as inputs, which need to be retrieved from DT. - In addition to the different PLL setup, the startup sequence has changed *again* (seems someone had trouble making his/her mind). Supporting all this requires DT bindings extensions for external clocks, brand new PLL setup code, and a few quirks to handle the differences in the startup sequence. The implementation doesn't support all hardware features yet, namely - Using the LV[01] clocks generated by the CPG as PLL input. - Providing the LVDS PLL clock to the DU for use with the RGB output. Those features can be added later when the need will arise. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* rcar_lvds_regs.h -- R-Car LVDS Interface Registers Definitions
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*
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* Copyright (C) 2013-2015 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*/
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#ifndef __RCAR_LVDS_REGS_H__
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#define __RCAR_LVDS_REGS_H__
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#define LVDCR0 0x0000
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#define LVDCR0_DUSEL (1 << 15)
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#define LVDCR0_DMD (1 << 12) /* Gen2 only */
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#define LVDCR0_LVMD_MASK (0xf << 8)
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#define LVDCR0_LVMD_SHIFT 8
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#define LVDCR0_PLLON (1 << 4)
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#define LVDCR0_PWD (1 << 2) /* Gen3 only */
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#define LVDCR0_BEN (1 << 2) /* Gen2 only */
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#define LVDCR0_LVEN (1 << 1)
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#define LVDCR0_LVRES (1 << 0)
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#define LVDCR1 0x0004
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#define LVDCR1_CKSEL (1 << 15) /* Gen2 only */
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#define LVDCR1_CHSTBY(n) (3 << (2 + (n) * 2))
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#define LVDCR1_CLKSTBY (3 << 0)
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#define LVDPLLCR 0x0008
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/* Gen2 & V3M */
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#define LVDPLLCR_CEEN (1 << 14)
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#define LVDPLLCR_FBEN (1 << 13)
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#define LVDPLLCR_COSEL (1 << 12)
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#define LVDPLLCR_PLLDLYCNT_150M (0x1bf << 0)
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#define LVDPLLCR_PLLDLYCNT_121M (0x22c << 0)
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#define LVDPLLCR_PLLDLYCNT_60M (0x77b << 0)
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#define LVDPLLCR_PLLDLYCNT_38M (0x69a << 0)
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#define LVDPLLCR_PLLDLYCNT_MASK (0x7ff << 0)
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/* Gen3 but V3M,D3 and E3 */
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#define LVDPLLCR_PLLDIVCNT_42M (0x014cb << 0)
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#define LVDPLLCR_PLLDIVCNT_85M (0x00a45 << 0)
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#define LVDPLLCR_PLLDIVCNT_128M (0x006c3 << 0)
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#define LVDPLLCR_PLLDIVCNT_148M (0x046c1 << 0)
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#define LVDPLLCR_PLLDIVCNT_MASK (0x7ffff << 0)
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/* D3 and E3 */
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#define LVDPLLCR_PLLON (1 << 22)
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#define LVDPLLCR_PLLSEL_PLL0 (0 << 20)
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#define LVDPLLCR_PLLSEL_LVX (1 << 20)
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#define LVDPLLCR_PLLSEL_PLL1 (2 << 20)
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#define LVDPLLCR_CKSEL_LVX (1 << 17)
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#define LVDPLLCR_CKSEL_EXTAL (3 << 17)
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#define LVDPLLCR_CKSEL_DU_DOTCLKIN(n) ((5 + (n) * 2) << 17)
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#define LVDPLLCR_OCKSEL (1 << 16)
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#define LVDPLLCR_STP_CLKOUTE (1 << 14)
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#define LVDPLLCR_OUTCLKSEL (1 << 12)
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#define LVDPLLCR_CLKOUT (1 << 11)
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#define LVDPLLCR_PLLE(n) ((n) << 10)
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#define LVDPLLCR_PLLN(n) ((n) << 3)
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#define LVDPLLCR_PLLM(n) ((n) << 0)
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#define LVDCTRCR 0x000c
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#define LVDCTRCR_CTR3SEL_ZERO (0 << 12)
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#define LVDCTRCR_CTR3SEL_ODD (1 << 12)
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#define LVDCTRCR_CTR3SEL_CDE (2 << 12)
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#define LVDCTRCR_CTR3SEL_MASK (7 << 12)
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#define LVDCTRCR_CTR2SEL_DISP (0 << 8)
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#define LVDCTRCR_CTR2SEL_ODD (1 << 8)
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#define LVDCTRCR_CTR2SEL_CDE (2 << 8)
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#define LVDCTRCR_CTR2SEL_HSYNC (3 << 8)
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#define LVDCTRCR_CTR2SEL_VSYNC (4 << 8)
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#define LVDCTRCR_CTR2SEL_MASK (7 << 8)
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#define LVDCTRCR_CTR1SEL_VSYNC (0 << 4)
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#define LVDCTRCR_CTR1SEL_DISP (1 << 4)
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#define LVDCTRCR_CTR1SEL_ODD (2 << 4)
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#define LVDCTRCR_CTR1SEL_CDE (3 << 4)
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#define LVDCTRCR_CTR1SEL_HSYNC (4 << 4)
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#define LVDCTRCR_CTR1SEL_MASK (7 << 4)
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#define LVDCTRCR_CTR0SEL_HSYNC (0 << 0)
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#define LVDCTRCR_CTR0SEL_VSYNC (1 << 0)
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#define LVDCTRCR_CTR0SEL_DISP (2 << 0)
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#define LVDCTRCR_CTR0SEL_ODD (3 << 0)
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#define LVDCTRCR_CTR0SEL_CDE (4 << 0)
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#define LVDCTRCR_CTR0SEL_MASK (7 << 0)
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#define LVDCHCR 0x0010
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#define LVDCHCR_CHSEL_CH(n, c) ((((c) - (n)) & 3) << ((n) * 4))
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#define LVDCHCR_CHSEL_MASK(n) (3 << ((n) * 4))
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/* All registers below are specific to D3 and E3 */
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#define LVDSTRIPE 0x0014
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#define LVDSTRIPE_ST_TRGSEL_DISP (0 << 2)
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#define LVDSTRIPE_ST_TRGSEL_HSYNC_R (1 << 2)
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#define LVDSTRIPE_ST_TRGSEL_HSYNC_F (2 << 2)
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#define LVDSTRIPE_ST_SWAP (1 << 1)
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#define LVDSTRIPE_ST_ON (1 << 0)
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#define LVDSCR 0x0018
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#define LVDSCR_DEPTH(n) (((n) - 1) << 29)
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#define LVDSCR_BANDSET (1 << 28)
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#define LVDSCR_TWGCNT(n) ((((n) - 256) / 16) << 24)
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#define LVDSCR_SDIV(n) ((n) << 22)
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#define LVDSCR_MODE (1 << 21)
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#define LVDSCR_RSTN (1 << 20)
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#define LVDDIV 0x001c
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#define LVDDIV_DIVSEL (1 << 8)
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#define LVDDIV_DIVRESET (1 << 7)
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#define LVDDIV_DIVSTP (1 << 6)
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#define LVDDIV_DIV(n) ((n) << 0)
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#endif /* __RCAR_LVDS_REGS_H__ */
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