894 lines
22 KiB
C
894 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Amlogic Meson Video Processing Unit driver
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*
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* Copyright (c) 2018 BayLibre, SAS.
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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#include <edid.h>
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#include "meson_vpu.h"
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#include <linux/iopoll.h>
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#include <linux/math64.h>
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#define writel_bits(mask, val, addr) \
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writel((readl(addr) & ~(mask)) | (val), addr)
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enum {
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MESON_VCLK_TARGET_CVBS = 0,
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MESON_VCLK_TARGET_HDMI = 1,
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MESON_VCLK_TARGET_DMT = 2,
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};
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/* HHI Registers */
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#define HHI_VID_PLL_CLK_DIV 0x1a0 /* 0x68 offset in data sheet */
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#define VID_PLL_EN BIT(19)
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#define VID_PLL_BYPASS BIT(18)
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#define VID_PLL_PRESET BIT(15)
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#define HHI_VIID_CLK_DIV 0x128 /* 0x4a offset in data sheet */
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#define VCLK2_DIV_MASK 0xff
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#define VCLK2_DIV_EN BIT(16)
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#define VCLK2_DIV_RESET BIT(17)
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#define CTS_VDAC_SEL_MASK (0xf << 28)
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#define CTS_VDAC_SEL_SHIFT 28
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#define HHI_VIID_CLK_CNTL 0x12c /* 0x4b offset in data sheet */
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#define VCLK2_EN BIT(19)
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#define VCLK2_SEL_MASK (0x7 << 16)
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#define VCLK2_SEL_SHIFT 16
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#define VCLK2_SOFT_RESET BIT(15)
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#define VCLK2_DIV1_EN BIT(0)
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#define HHI_VID_CLK_DIV 0x164 /* 0x59 offset in data sheet */
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#define VCLK_DIV_MASK 0xff
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#define VCLK_DIV_EN BIT(16)
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#define VCLK_DIV_RESET BIT(17)
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#define CTS_ENCP_SEL_MASK (0xf << 24)
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#define CTS_ENCP_SEL_SHIFT 24
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#define CTS_ENCI_SEL_MASK (0xf << 28)
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#define CTS_ENCI_SEL_SHIFT 28
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#define HHI_VID_CLK_CNTL 0x17c /* 0x5f offset in data sheet */
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#define VCLK_EN BIT(19)
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#define VCLK_SEL_MASK (0x7 << 16)
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#define VCLK_SEL_SHIFT 16
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#define VCLK_SOFT_RESET BIT(15)
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#define VCLK_DIV1_EN BIT(0)
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#define VCLK_DIV2_EN BIT(1)
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#define VCLK_DIV4_EN BIT(2)
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#define VCLK_DIV6_EN BIT(3)
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#define VCLK_DIV12_EN BIT(4)
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#define HHI_VID_CLK_CNTL2 0x194 /* 0x65 offset in data sheet */
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#define CTS_ENCI_EN BIT(0)
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#define CTS_ENCP_EN BIT(2)
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#define CTS_VDAC_EN BIT(4)
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#define HDMI_TX_PIXEL_EN BIT(5)
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#define HHI_HDMI_CLK_CNTL 0x1cc /* 0x73 offset in data sheet */
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#define HDMI_TX_PIXEL_SEL_MASK (0xf << 16)
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#define HDMI_TX_PIXEL_SEL_SHIFT 16
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#define CTS_HDMI_SYS_SEL_MASK (0x7 << 9)
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#define CTS_HDMI_SYS_DIV_MASK (0x7f)
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#define CTS_HDMI_SYS_EN BIT(8)
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#define HHI_HDMI_PLL_CNTL 0x320 /* 0xc8 offset in data sheet */
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#define HHI_HDMI_PLL_CNTL2 0x324 /* 0xc9 offset in data sheet */
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#define HHI_HDMI_PLL_CNTL3 0x328 /* 0xca offset in data sheet */
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#define HHI_HDMI_PLL_CNTL4 0x32C /* 0xcb offset in data sheet */
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#define HHI_HDMI_PLL_CNTL5 0x330 /* 0xcc offset in data sheet */
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#define HHI_HDMI_PLL_CNTL6 0x334 /* 0xcd offset in data sheet */
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#define HDMI_PLL_RESET BIT(28)
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#define HDMI_PLL_LOCK BIT(31)
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/* VID PLL Dividers */
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enum {
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VID_PLL_DIV_1 = 0,
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VID_PLL_DIV_2,
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VID_PLL_DIV_2p5,
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VID_PLL_DIV_3,
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VID_PLL_DIV_3p5,
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VID_PLL_DIV_3p75,
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VID_PLL_DIV_4,
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VID_PLL_DIV_5,
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VID_PLL_DIV_6,
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VID_PLL_DIV_6p25,
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VID_PLL_DIV_7,
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VID_PLL_DIV_7p5,
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VID_PLL_DIV_12,
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VID_PLL_DIV_14,
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VID_PLL_DIV_15,
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};
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void meson_vid_pll_set(struct meson_vpu_priv *priv, unsigned int div)
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{
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unsigned int shift_val = 0;
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unsigned int shift_sel = 0;
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/* Disable vid_pll output clock */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV, VID_PLL_EN, 0);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV, VID_PLL_PRESET, 0);
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switch (div) {
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case VID_PLL_DIV_2:
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shift_val = 0x0aaa;
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shift_sel = 0;
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break;
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case VID_PLL_DIV_2p5:
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shift_val = 0x5294;
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shift_sel = 2;
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break;
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case VID_PLL_DIV_3:
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shift_val = 0x0db6;
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shift_sel = 0;
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break;
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case VID_PLL_DIV_3p5:
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shift_val = 0x36cc;
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shift_sel = 1;
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break;
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case VID_PLL_DIV_3p75:
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shift_val = 0x6666;
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shift_sel = 2;
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break;
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case VID_PLL_DIV_4:
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shift_val = 0x0ccc;
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shift_sel = 0;
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break;
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case VID_PLL_DIV_5:
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shift_val = 0x739c;
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shift_sel = 2;
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break;
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case VID_PLL_DIV_6:
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shift_val = 0x0e38;
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shift_sel = 0;
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break;
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case VID_PLL_DIV_6p25:
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shift_val = 0x0000;
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shift_sel = 3;
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break;
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case VID_PLL_DIV_7:
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shift_val = 0x3c78;
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shift_sel = 1;
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break;
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case VID_PLL_DIV_7p5:
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shift_val = 0x78f0;
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shift_sel = 2;
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break;
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case VID_PLL_DIV_12:
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shift_val = 0x0fc0;
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shift_sel = 0;
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break;
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case VID_PLL_DIV_14:
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shift_val = 0x3f80;
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shift_sel = 1;
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break;
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case VID_PLL_DIV_15:
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shift_val = 0x7f80;
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shift_sel = 2;
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break;
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}
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if (div == VID_PLL_DIV_1) {
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/* Enable vid_pll bypass to HDMI pll */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_BYPASS, VID_PLL_BYPASS);
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} else {
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/* Disable Bypass */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_BYPASS, 0);
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/* Clear sel */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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3 << 16, 0);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_PRESET, 0);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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0x7fff, 0);
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/* Setup sel and val */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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3 << 16, shift_sel << 16);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_PRESET, VID_PLL_PRESET);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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0x7fff, shift_val);
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_PRESET, 0);
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}
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/* Enable the vid_pll output clock */
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hhi_update_bits(HHI_VID_PLL_CLK_DIV,
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VID_PLL_EN, VID_PLL_EN);
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}
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/*
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* Setup VCLK2 for 27MHz, and enable clocks for ENCI and VDAC
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*
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* TOFIX: Refactor into table to also handle HDMI frequency and paths
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*/
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static void meson_venci_cvbs_clock_config(struct meson_vpu_priv *priv)
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{
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unsigned int val;
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debug("%s:%d\n", __func__, __LINE__);
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/* Setup PLL to output 1.485GHz */
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if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
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hhi_write(HHI_HDMI_PLL_CNTL, 0x5800023d);
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hhi_write(HHI_HDMI_PLL_CNTL2, 0x00404e00);
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hhi_write(HHI_HDMI_PLL_CNTL3, 0x0d5c5091);
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hhi_write(HHI_HDMI_PLL_CNTL4, 0x801da72c);
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hhi_write(HHI_HDMI_PLL_CNTL5, 0x71486980);
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hhi_write(HHI_HDMI_PLL_CNTL6, 0x00000e55);
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hhi_write(HHI_HDMI_PLL_CNTL, 0x4800023d);
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} else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
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meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) {
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hhi_write(HHI_HDMI_PLL_CNTL, 0x4000027b);
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hhi_write(HHI_HDMI_PLL_CNTL2, 0x800cb300);
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hhi_write(HHI_HDMI_PLL_CNTL3, 0xa6212844);
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hhi_write(HHI_HDMI_PLL_CNTL4, 0x0c4d000c);
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hhi_write(HHI_HDMI_PLL_CNTL5, 0x001fa729);
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hhi_write(HHI_HDMI_PLL_CNTL6, 0x01a31500);
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/* Reset PLL */
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hhi_update_bits(HHI_HDMI_PLL_CNTL,
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HDMI_PLL_RESET, HDMI_PLL_RESET);
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hhi_update_bits(HHI_HDMI_PLL_CNTL,
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HDMI_PLL_RESET, 0);
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}
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debug("%s:%d\n", __func__, __LINE__);
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/* Poll for lock bit */
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readl_poll_timeout(priv->hhi_base + HHI_HDMI_PLL_CNTL, val,
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(val & HDMI_PLL_LOCK), 10);
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/* Disable VCLK2 */
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hhi_update_bits(HHI_VIID_CLK_CNTL, VCLK2_EN, 0);
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/* Setup vid_pll to /1 */
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meson_vid_pll_set(priv, VID_PLL_DIV_1);
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/* Setup the VCLK2 divider value to achieve 27MHz */
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hhi_update_bits(HHI_VIID_CLK_DIV,
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VCLK2_DIV_MASK, (55 - 1));
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/* select vid_pll for vclk2 */
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hhi_update_bits(HHI_VIID_CLK_CNTL,
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VCLK2_SEL_MASK, (4 << VCLK2_SEL_SHIFT));
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/* enable vclk2 gate */
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hhi_update_bits(HHI_VIID_CLK_CNTL, VCLK2_EN, VCLK2_EN);
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/* select vclk_div1 for enci */
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hhi_update_bits(HHI_VID_CLK_DIV,
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CTS_ENCI_SEL_MASK, (8 << CTS_ENCI_SEL_SHIFT));
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/* select vclk_div1 for vdac */
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hhi_update_bits(HHI_VIID_CLK_DIV,
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CTS_VDAC_SEL_MASK, (8 << CTS_VDAC_SEL_SHIFT));
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/* release vclk2_div_reset and enable vclk2_div */
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hhi_update_bits(HHI_VIID_CLK_DIV,
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VCLK2_DIV_EN | VCLK2_DIV_RESET, VCLK2_DIV_EN);
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/* enable vclk2_div1 gate */
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hhi_update_bits(HHI_VIID_CLK_CNTL,
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VCLK2_DIV1_EN, VCLK2_DIV1_EN);
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/* reset vclk2 */
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hhi_update_bits(HHI_VIID_CLK_CNTL,
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VCLK2_SOFT_RESET, VCLK2_SOFT_RESET);
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hhi_update_bits(HHI_VIID_CLK_CNTL,
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VCLK2_SOFT_RESET, 0);
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/* enable enci_clk */
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hhi_update_bits(HHI_VID_CLK_CNTL2,
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CTS_ENCI_EN, CTS_ENCI_EN);
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/* enable vdac_clk */
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hhi_update_bits(HHI_VID_CLK_CNTL2,
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CTS_VDAC_EN, CTS_VDAC_EN);
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debug("%s:%d\n", __func__, __LINE__);
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}
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enum {
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/* PLL O1 O2 O3 VP DV EN TX */
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/* 4320 /4 /4 /1 /5 /1 => /2 /2 */
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MESON_VCLK_HDMI_ENCI_54000 = 1,
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/* 4320 /4 /4 /1 /5 /1 => /1 /2 */
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MESON_VCLK_HDMI_DDR_54000,
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/* 2970 /4 /1 /1 /5 /1 => /1 /2 */
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MESON_VCLK_HDMI_DDR_148500,
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/* 2970 /2 /2 /2 /5 /1 => /1 /1 */
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MESON_VCLK_HDMI_74250,
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/* 2970 /1 /2 /2 /5 /1 => /1 /1 */
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MESON_VCLK_HDMI_148500,
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/* 2970 /1 /1 /1 /5 /2 => /1 /1 */
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MESON_VCLK_HDMI_297000,
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/* 5940 /1 /1 /2 /5 /1 => /1 /1 */
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MESON_VCLK_HDMI_594000
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};
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struct meson_vclk_params {
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unsigned int pll_base_freq;
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unsigned int pll_od1;
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unsigned int pll_od2;
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unsigned int pll_od3;
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unsigned int vid_pll_div;
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unsigned int vclk_div;
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} params[] = {
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[MESON_VCLK_HDMI_ENCI_54000] = {
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.pll_base_freq = 4320000,
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.pll_od1 = 4,
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.pll_od2 = 4,
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.pll_od3 = 1,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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[MESON_VCLK_HDMI_DDR_54000] = {
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.pll_base_freq = 4320000,
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.pll_od1 = 4,
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.pll_od2 = 4,
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.pll_od3 = 1,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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[MESON_VCLK_HDMI_DDR_148500] = {
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.pll_base_freq = 2970000,
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.pll_od1 = 4,
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.pll_od2 = 1,
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.pll_od3 = 1,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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[MESON_VCLK_HDMI_74250] = {
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.pll_base_freq = 2970000,
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.pll_od1 = 2,
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.pll_od2 = 2,
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.pll_od3 = 2,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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[MESON_VCLK_HDMI_148500] = {
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.pll_base_freq = 2970000,
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.pll_od1 = 1,
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.pll_od2 = 2,
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.pll_od3 = 2,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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[MESON_VCLK_HDMI_297000] = {
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.pll_base_freq = 2970000,
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.pll_od1 = 1,
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.pll_od2 = 1,
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.pll_od3 = 1,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 2,
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},
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[MESON_VCLK_HDMI_594000] = {
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.pll_base_freq = 5940000,
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.pll_od1 = 1,
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.pll_od2 = 1,
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.pll_od3 = 2,
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.vid_pll_div = VID_PLL_DIV_5,
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.vclk_div = 1,
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},
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};
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static inline unsigned int pll_od_to_reg(unsigned int od)
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{
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switch (od) {
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case 1:
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return 0;
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case 2:
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return 1;
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case 4:
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return 2;
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case 8:
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return 3;
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}
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/* Invalid */
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return 0;
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}
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void meson_hdmi_pll_set_params(struct meson_vpu_priv *priv, unsigned int m,
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unsigned int frac, unsigned int od1,
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unsigned int od2, unsigned int od3)
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{
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unsigned int val;
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if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
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hhi_write(HHI_HDMI_PLL_CNTL, 0x58000200 | m);
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if (frac)
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hhi_write(HHI_HDMI_PLL_CNTL2,
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0x00004000 | frac);
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else
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hhi_write(HHI_HDMI_PLL_CNTL2,
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0x00000000);
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hhi_write(HHI_HDMI_PLL_CNTL3, 0x0d5c5091);
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hhi_write(HHI_HDMI_PLL_CNTL4, 0x801da72c);
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hhi_write(HHI_HDMI_PLL_CNTL5, 0x71486980);
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hhi_write(HHI_HDMI_PLL_CNTL6, 0x00000e55);
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/* Enable and unreset */
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hhi_update_bits(HHI_HDMI_PLL_CNTL,
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0x7 << 28, 0x4 << 28);
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/* Poll for lock bit */
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readl_poll_timeout(priv->hhi_base + HHI_HDMI_PLL_CNTL, val,
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(val & HDMI_PLL_LOCK), 10);
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} else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
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meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) {
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hhi_write(HHI_HDMI_PLL_CNTL, 0x40000200 | m);
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hhi_write(HHI_HDMI_PLL_CNTL2, 0x800cb000 | frac);
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hhi_write(HHI_HDMI_PLL_CNTL3, 0x860f30c4);
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hhi_write(HHI_HDMI_PLL_CNTL4, 0x0c8e0000);
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hhi_write(HHI_HDMI_PLL_CNTL5, 0x001fa729);
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hhi_write(HHI_HDMI_PLL_CNTL6, 0x01a31500);
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/* Reset PLL */
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hhi_update_bits(HHI_HDMI_PLL_CNTL,
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HDMI_PLL_RESET, HDMI_PLL_RESET);
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hhi_update_bits(HHI_HDMI_PLL_CNTL,
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HDMI_PLL_RESET, 0);
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/* Poll for lock bit */
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readl_poll_timeout(priv->hhi_base + HHI_HDMI_PLL_CNTL, val,
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(val & HDMI_PLL_LOCK), 10);
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}
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|
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL2,
|
|
3 << 16, pll_od_to_reg(od1) << 16);
|
|
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
|
|
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL3,
|
|
3 << 21, pll_od_to_reg(od1) << 21);
|
|
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL2,
|
|
3 << 22, pll_od_to_reg(od2) << 22);
|
|
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
|
|
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL3,
|
|
3 << 23, pll_od_to_reg(od2) << 23);
|
|
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL2,
|
|
3 << 18, pll_od_to_reg(od3) << 18);
|
|
else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
|
|
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
|
|
hhi_update_bits(HHI_HDMI_PLL_CNTL3,
|
|
3 << 19, pll_od_to_reg(od3) << 19);
|
|
}
|
|
|
|
#define XTAL_FREQ 24000
|
|
|
|
static unsigned int meson_hdmi_pll_get_m(struct meson_vpu_priv *priv,
|
|
unsigned int pll_freq)
|
|
{
|
|
/* The GXBB PLL has a /2 pre-multiplier */
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
|
|
pll_freq /= 2;
|
|
|
|
return pll_freq / XTAL_FREQ;
|
|
}
|
|
|
|
#define HDMI_FRAC_MAX_GXBB 4096
|
|
#define HDMI_FRAC_MAX_GXL 1024
|
|
|
|
static unsigned int meson_hdmi_pll_get_frac(struct meson_vpu_priv *priv,
|
|
unsigned int m,
|
|
unsigned int pll_freq)
|
|
{
|
|
unsigned int parent_freq = XTAL_FREQ;
|
|
unsigned int frac_max = HDMI_FRAC_MAX_GXL;
|
|
unsigned int frac_m;
|
|
unsigned int frac;
|
|
|
|
/* The GXBB PLL has a /2 pre-multiplier and a larger FRAC width */
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
|
|
frac_max = HDMI_FRAC_MAX_GXBB;
|
|
parent_freq *= 2;
|
|
}
|
|
|
|
/* We can have a perfect match !*/
|
|
if (pll_freq / m == parent_freq &&
|
|
pll_freq % m == 0)
|
|
return 0;
|
|
|
|
frac = div_u64((u64)pll_freq * (u64)frac_max, parent_freq);
|
|
frac_m = m * frac_max;
|
|
if (frac_m > frac)
|
|
return frac_max;
|
|
frac -= frac_m;
|
|
|
|
return min((u16)frac, (u16)(frac_max - 1));
|
|
}
|
|
|
|
static bool meson_hdmi_pll_validate_params(struct meson_vpu_priv *priv,
|
|
unsigned int m,
|
|
unsigned int frac)
|
|
{
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
|
|
/* Empiric supported min/max dividers */
|
|
if (m < 53 || m > 123)
|
|
return false;
|
|
if (frac >= HDMI_FRAC_MAX_GXBB)
|
|
return false;
|
|
} else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
|
|
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) {
|
|
/* Empiric supported min/max dividers */
|
|
if (m < 106 || m > 247)
|
|
return false;
|
|
if (frac >= HDMI_FRAC_MAX_GXL)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool meson_hdmi_pll_find_params(struct meson_vpu_priv *priv,
|
|
unsigned int freq,
|
|
unsigned int *m,
|
|
unsigned int *frac,
|
|
unsigned int *od)
|
|
{
|
|
/* Cycle from /16 to /2 */
|
|
for (*od = 16 ; *od > 1 ; *od >>= 1) {
|
|
*m = meson_hdmi_pll_get_m(priv, freq * *od);
|
|
if (!*m)
|
|
continue;
|
|
*frac = meson_hdmi_pll_get_frac(priv, *m, freq * *od);
|
|
|
|
debug("PLL params for %dkHz: m=%x frac=%x od=%d\n",
|
|
freq, *m, *frac, *od);
|
|
|
|
if (meson_hdmi_pll_validate_params(priv, *m, *frac))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* pll_freq is the frequency after the OD dividers */
|
|
bool meson_vclk_dmt_supported_freq(struct meson_vpu_priv *priv,
|
|
unsigned int freq)
|
|
{
|
|
unsigned int od, m, frac;
|
|
|
|
/* In DMT mode, path after PLL is always /10 */
|
|
freq *= 10;
|
|
|
|
if (meson_hdmi_pll_find_params(priv, freq, &m, &frac, &od))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/* pll_freq is the frequency after the OD dividers */
|
|
static void meson_hdmi_pll_generic_set(struct meson_vpu_priv *priv,
|
|
unsigned int pll_freq)
|
|
{
|
|
unsigned int od, m, frac, od1, od2, od3;
|
|
|
|
if (meson_hdmi_pll_find_params(priv, pll_freq, &m, &frac, &od)) {
|
|
od3 = 1;
|
|
if (od < 4) {
|
|
od1 = 2;
|
|
od2 = 1;
|
|
} else {
|
|
od2 = od / 4;
|
|
od1 = od / od2;
|
|
}
|
|
|
|
debug("PLL params for %dkHz: m=%x frac=%x od=%d/%d/%d\n",
|
|
pll_freq, m, frac, od1, od2, od3);
|
|
|
|
meson_hdmi_pll_set_params(priv, m, frac, od1, od2, od3);
|
|
|
|
return;
|
|
}
|
|
|
|
printf("Fatal, unable to find parameters for PLL freq %d\n",
|
|
pll_freq);
|
|
}
|
|
|
|
static void
|
|
meson_vclk_set(struct meson_vpu_priv *priv, unsigned int pll_base_freq,
|
|
unsigned int od1, unsigned int od2, unsigned int od3,
|
|
unsigned int vid_pll_div, unsigned int vclk_div,
|
|
unsigned int hdmi_tx_div, unsigned int venc_div,
|
|
bool hdmi_use_enci)
|
|
{
|
|
/* Set HDMI-TX sys clock */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
CTS_HDMI_SYS_SEL_MASK, 0);
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
CTS_HDMI_SYS_DIV_MASK, 0);
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
CTS_HDMI_SYS_EN, CTS_HDMI_SYS_EN);
|
|
|
|
/* Set HDMI PLL rate */
|
|
if (!od1 && !od2 && !od3) {
|
|
meson_hdmi_pll_generic_set(priv, pll_base_freq);
|
|
} else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
|
|
switch (pll_base_freq) {
|
|
case 2970000:
|
|
meson_hdmi_pll_set_params(priv, 0x3d, 0xe00,
|
|
od1, od2, od3);
|
|
break;
|
|
case 4320000:
|
|
meson_hdmi_pll_set_params(priv, 0x5a, 0,
|
|
od1, od2, od3);
|
|
break;
|
|
case 5940000:
|
|
meson_hdmi_pll_set_params(priv, 0x7b, 0xc00,
|
|
od1, od2, od3);
|
|
break;
|
|
}
|
|
} else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
|
|
meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) {
|
|
switch (pll_base_freq) {
|
|
case 2970000:
|
|
meson_hdmi_pll_set_params(priv, 0x7b, 0x300,
|
|
od1, od2, od3);
|
|
break;
|
|
case 4320000:
|
|
meson_hdmi_pll_set_params(priv, 0xb4, 0,
|
|
od1, od2, od3);
|
|
break;
|
|
case 5940000:
|
|
meson_hdmi_pll_set_params(priv, 0xf7, 0x200,
|
|
od1, od2, od3);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Setup vid_pll divider */
|
|
meson_vid_pll_set(priv, vid_pll_div);
|
|
|
|
/* Set VCLK div */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_SEL_MASK, 0);
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
VCLK_DIV_MASK, vclk_div - 1);
|
|
|
|
/* Set HDMI-TX source */
|
|
switch (hdmi_tx_div) {
|
|
case 1:
|
|
/* enable vclk_div1 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV1_EN, VCLK_DIV1_EN);
|
|
|
|
/* select vclk_div1 for HDMI-TX */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
HDMI_TX_PIXEL_SEL_MASK, 0);
|
|
break;
|
|
case 2:
|
|
/* enable vclk_div2 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV2_EN, VCLK_DIV2_EN);
|
|
|
|
/* select vclk_div2 for HDMI-TX */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
HDMI_TX_PIXEL_SEL_MASK,
|
|
1 << HDMI_TX_PIXEL_SEL_SHIFT);
|
|
break;
|
|
case 4:
|
|
/* enable vclk_div4 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV4_EN, VCLK_DIV4_EN);
|
|
|
|
/* select vclk_div4 for HDMI-TX */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
HDMI_TX_PIXEL_SEL_MASK,
|
|
2 << HDMI_TX_PIXEL_SEL_SHIFT);
|
|
break;
|
|
case 6:
|
|
/* enable vclk_div6 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV6_EN, VCLK_DIV6_EN);
|
|
|
|
/* select vclk_div6 for HDMI-TX */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
HDMI_TX_PIXEL_SEL_MASK,
|
|
3 << HDMI_TX_PIXEL_SEL_SHIFT);
|
|
break;
|
|
case 12:
|
|
/* enable vclk_div12 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV12_EN, VCLK_DIV12_EN);
|
|
|
|
/* select vclk_div12 for HDMI-TX */
|
|
hhi_update_bits(HHI_HDMI_CLK_CNTL,
|
|
HDMI_TX_PIXEL_SEL_MASK,
|
|
4 << HDMI_TX_PIXEL_SEL_SHIFT);
|
|
break;
|
|
}
|
|
hhi_update_bits(HHI_VID_CLK_CNTL2,
|
|
HDMI_TX_PIXEL_EN, HDMI_TX_PIXEL_EN);
|
|
|
|
/* Set ENCI/ENCP Source */
|
|
switch (venc_div) {
|
|
case 1:
|
|
/* enable vclk_div1 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV1_EN, VCLK_DIV1_EN);
|
|
|
|
if (hdmi_use_enci)
|
|
/* select vclk_div1 for enci */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCI_SEL_MASK, 0);
|
|
else
|
|
/* select vclk_div1 for encp */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCP_SEL_MASK, 0);
|
|
break;
|
|
case 2:
|
|
/* enable vclk_div2 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV2_EN, VCLK_DIV2_EN);
|
|
|
|
if (hdmi_use_enci)
|
|
/* select vclk_div2 for enci */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCI_SEL_MASK,
|
|
1 << CTS_ENCI_SEL_SHIFT);
|
|
else
|
|
/* select vclk_div2 for encp */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCP_SEL_MASK,
|
|
1 << CTS_ENCP_SEL_SHIFT);
|
|
break;
|
|
case 4:
|
|
/* enable vclk_div4 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV4_EN, VCLK_DIV4_EN);
|
|
|
|
if (hdmi_use_enci)
|
|
/* select vclk_div4 for enci */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCI_SEL_MASK,
|
|
2 << CTS_ENCI_SEL_SHIFT);
|
|
else
|
|
/* select vclk_div4 for encp */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCP_SEL_MASK,
|
|
2 << CTS_ENCP_SEL_SHIFT);
|
|
break;
|
|
case 6:
|
|
/* enable vclk_div6 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV6_EN, VCLK_DIV6_EN);
|
|
|
|
if (hdmi_use_enci)
|
|
/* select vclk_div6 for enci */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCI_SEL_MASK,
|
|
3 << CTS_ENCI_SEL_SHIFT);
|
|
else
|
|
/* select vclk_div6 for encp */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCP_SEL_MASK,
|
|
3 << CTS_ENCP_SEL_SHIFT);
|
|
break;
|
|
case 12:
|
|
/* enable vclk_div12 gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL,
|
|
VCLK_DIV12_EN, VCLK_DIV12_EN);
|
|
|
|
if (hdmi_use_enci)
|
|
/* select vclk_div12 for enci */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCI_SEL_MASK,
|
|
4 << CTS_ENCI_SEL_SHIFT);
|
|
else
|
|
/* select vclk_div12 for encp */
|
|
hhi_update_bits(HHI_VID_CLK_DIV,
|
|
CTS_ENCP_SEL_MASK,
|
|
4 << CTS_ENCP_SEL_SHIFT);
|
|
break;
|
|
}
|
|
|
|
if (hdmi_use_enci)
|
|
/* Enable ENCI clock gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL2,
|
|
CTS_ENCI_EN, CTS_ENCI_EN);
|
|
else
|
|
/* Enable ENCP clock gate */
|
|
hhi_update_bits(HHI_VID_CLK_CNTL2,
|
|
CTS_ENCP_EN, CTS_ENCP_EN);
|
|
|
|
hhi_update_bits(HHI_VID_CLK_CNTL, VCLK_EN, VCLK_EN);
|
|
}
|
|
|
|
static void meson_vclk_setup(struct meson_vpu_priv *priv, unsigned int target,
|
|
unsigned int vclk_freq, unsigned int venc_freq,
|
|
unsigned int dac_freq, bool hdmi_use_enci)
|
|
{
|
|
unsigned int freq;
|
|
unsigned int hdmi_tx_div;
|
|
unsigned int venc_div;
|
|
|
|
if (target == MESON_VCLK_TARGET_CVBS) {
|
|
meson_venci_cvbs_clock_config(priv);
|
|
return;
|
|
} else if (target == MESON_VCLK_TARGET_DMT) {
|
|
/* The DMT clock path is fixed after the PLL:
|
|
* - automatic PLL freq + OD management
|
|
* - vid_pll_div = VID_PLL_DIV_5
|
|
* - vclk_div = 2
|
|
* - hdmi_tx_div = 1
|
|
* - venc_div = 1
|
|
* - encp encoder
|
|
*/
|
|
meson_vclk_set(priv, vclk_freq * 10, 0, 0, 0,
|
|
VID_PLL_DIV_5, 2, 1, 1, false);
|
|
|
|
return;
|
|
}
|
|
|
|
hdmi_tx_div = vclk_freq / dac_freq;
|
|
|
|
if (hdmi_tx_div == 0) {
|
|
printf("Fatal Error, invalid HDMI-TX freq %d\n",
|
|
dac_freq);
|
|
return;
|
|
}
|
|
|
|
venc_div = vclk_freq / venc_freq;
|
|
|
|
if (venc_div == 0) {
|
|
printf("Fatal Error, invalid HDMI venc freq %d\n",
|
|
venc_freq);
|
|
return;
|
|
}
|
|
|
|
switch (vclk_freq) {
|
|
case 54000:
|
|
if (hdmi_use_enci)
|
|
freq = MESON_VCLK_HDMI_ENCI_54000;
|
|
else
|
|
freq = MESON_VCLK_HDMI_DDR_54000;
|
|
break;
|
|
case 74250:
|
|
freq = MESON_VCLK_HDMI_74250;
|
|
break;
|
|
case 148500:
|
|
if (dac_freq != 148500)
|
|
freq = MESON_VCLK_HDMI_DDR_148500;
|
|
else
|
|
freq = MESON_VCLK_HDMI_148500;
|
|
break;
|
|
case 297000:
|
|
freq = MESON_VCLK_HDMI_297000;
|
|
break;
|
|
case 594000:
|
|
freq = MESON_VCLK_HDMI_594000;
|
|
break;
|
|
default:
|
|
printf("Fatal Error, invalid HDMI vclk freq %d\n",
|
|
vclk_freq);
|
|
return;
|
|
}
|
|
|
|
meson_vclk_set(priv, params[freq].pll_base_freq,
|
|
params[freq].pll_od1, params[freq].pll_od2,
|
|
params[freq].pll_od3, params[freq].vid_pll_div,
|
|
params[freq].vclk_div, hdmi_tx_div, venc_div,
|
|
hdmi_use_enci);
|
|
}
|
|
|
|
void meson_vpu_setup_vclk(struct udevice *dev,
|
|
const struct display_timing *mode, bool is_cvbs)
|
|
{
|
|
struct meson_vpu_priv *priv = dev_get_priv(dev);
|
|
unsigned int vclk_freq;
|
|
|
|
if (is_cvbs)
|
|
return meson_vclk_setup(priv, MESON_VCLK_TARGET_CVBS,
|
|
0, 0, 0, false);
|
|
|
|
vclk_freq = mode->pixelclock.typ / 1000;
|
|
|
|
return meson_vclk_setup(priv, MESON_VCLK_TARGET_DMT,
|
|
vclk_freq, vclk_freq, vclk_freq, false);
|
|
}
|