From 1ae5def6be484b0ee2c6ef72c750349b72342ac9 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 27 Mar 2017 19:22:31 +0200 Subject: [PATCH] sunxi: Add clock support for DE2/HDMI/TCON on newer SoCs This is needed for HDMI, which will be added later. Signed-off-by: Jernej Skrabec Reviewed-by: Simon Glass Signed-off-by: Maxime Ripard --- arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 54 +++++++++++++++++++++++++++ arch/arm/mach-sunxi/clock_sun6i.c | 40 +++++++++++++++++++- board/sunxi/Kconfig | 6 +++ drivers/video/sunxi/lcdc.c | 4 ++ 4 files changed, 103 insertions(+), 1 deletion(-) diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h index 1aefd5a..a44ea77 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h @@ -67,13 +67,22 @@ struct sunxi_ccm_reg { u32 dram_pll_cfg; /* 0xf8 PLL_DDR cfg register, A33 only */ u32 mbus_reset; /* 0xfc MBUS reset control, A33 only */ u32 dram_clk_gate; /* 0x100 DRAM module gating */ +#ifdef CONFIG_SUNXI_DE2 + u32 de_clk_cfg; /* 0x104 DE module clock */ +#else u32 be0_clk_cfg; /* 0x104 BE0 module clock */ +#endif u32 be1_clk_cfg; /* 0x108 BE1 module clock */ u32 fe0_clk_cfg; /* 0x10c FE0 module clock */ u32 fe1_clk_cfg; /* 0x110 FE1 module clock */ u32 mp_clk_cfg; /* 0x114 MP module clock */ +#ifdef CONFIG_SUNXI_DE2 + u32 lcd0_clk_cfg; /* 0x118 LCD0 module clock */ + u32 lcd1_clk_cfg; /* 0x11c LCD1 module clock */ +#else u32 lcd0_ch0_clk_cfg; /* 0x118 LCD0 CH0 module clock */ u32 lcd1_ch0_clk_cfg; /* 0x11c LCD1 CH0 module clock */ +#endif u32 reserved14[3]; u32 lcd0_ch1_clk_cfg; /* 0x12c LCD0 CH1 module clock */ u32 lcd1_ch1_clk_cfg; /* 0x130 LCD1 CH1 module clock */ @@ -85,7 +94,11 @@ struct sunxi_ccm_reg { u32 dmic_clk_cfg; /* 0x148 Digital Mic module clock*/ u32 reserved15; u32 hdmi_clk_cfg; /* 0x150 HDMI module clock */ +#ifdef CONFIG_SUNXI_DE2 + u32 hdmi_slow_clk_cfg; /* 0x154 HDMI slow module clock */ +#else u32 ps_clk_cfg; /* 0x154 PS module clock */ +#endif u32 mtc_clk_cfg; /* 0x158 MTC module clock */ u32 mbus0_clk_cfg; /* 0x15c MBUS0 module clock */ u32 mbus1_clk_cfg; /* 0x160 MBUS1 module clock */ @@ -193,6 +206,7 @@ struct sunxi_ccm_reg { #define CCM_PLL3_CTRL_N_MASK (0x7f << CCM_PLL3_CTRL_N_SHIFT) #define CCM_PLL3_CTRL_N(n) ((((n) - 1) & 0x7f) << 8) #define CCM_PLL3_CTRL_INTEGER_MODE (0x1 << 24) +#define CCM_PLL3_CTRL_LOCK (0x1 << 28) #define CCM_PLL3_CTRL_EN (0x1 << 31) #define CCM_PLL5_CTRL_M(n) ((((n) - 1) & 0x3) << 0) @@ -222,6 +236,16 @@ struct sunxi_ccm_reg { #define CCM_MIPI_PLL_CTRL_LDO_EN (0x3 << 22) #define CCM_MIPI_PLL_CTRL_EN (0x1 << 31) +#define CCM_PLL10_CTRL_M_SHIFT 0 +#define CCM_PLL10_CTRL_M_MASK (0xf << CCM_PLL10_CTRL_M_SHIFT) +#define CCM_PLL10_CTRL_M(n) ((((n) - 1) & 0xf) << 0) +#define CCM_PLL10_CTRL_N_SHIFT 8 +#define CCM_PLL10_CTRL_N_MASK (0x7f << CCM_PLL10_CTRL_N_SHIFT) +#define CCM_PLL10_CTRL_N(n) ((((n) - 1) & 0x7f) << 8) +#define CCM_PLL10_CTRL_INTEGER_MODE (0x1 << 24) +#define CCM_PLL10_CTRL_LOCK (0x1 << 28) +#define CCM_PLL10_CTRL_EN (0x1 << 31) + #define CCM_PLL11_CTRL_N(n) ((((n) - 1) & 0x3f) << 8) #define CCM_PLL11_CTRL_SIGMA_DELTA_EN (0x1 << 24) #define CCM_PLL11_CTRL_UPD (0x1 << 30) @@ -273,9 +297,15 @@ struct sunxi_ccm_reg { #define AHB_GATE_OFFSET_DRC0 25 #define AHB_GATE_OFFSET_DE_FE0 14 #define AHB_GATE_OFFSET_DE_BE0 12 +#define AHB_GATE_OFFSET_DE 12 #define AHB_GATE_OFFSET_HDMI 11 +#ifndef CONFIG_SUNXI_DE2 #define AHB_GATE_OFFSET_LCD1 5 #define AHB_GATE_OFFSET_LCD0 4 +#else +#define AHB_GATE_OFFSET_LCD1 4 +#define AHB_GATE_OFFSET_LCD0 3 +#endif #define CCM_MMC_CTRL_M(x) ((x) - 1) #define CCM_MMC_CTRL_OCLK_DLY(x) ((x) << 8) @@ -357,6 +387,12 @@ struct sunxi_ccm_reg { #define CCM_LCD_CH1_CTRL_PLL7_2X (3 << 24) #define CCM_LCD_CH1_CTRL_GATE (0x1 << 31) +#define CCM_LCD0_CTRL_GATE (0x1 << 31) +#define CCM_LCD0_CTRL_M(n) ((((n) - 1) & 0xf) << 0) + +#define CCM_LCD1_CTRL_GATE (0x1 << 31) +#define CCM_LCD1_CTRL_M(n) ((((n) - 1) & 0xf) << 0) + #define CCM_HDMI_CTRL_M(n) ((((n) - 1) & 0xf) << 0) #define CCM_HDMI_CTRL_PLL_MASK (3 << 24) #define CCM_HDMI_CTRL_PLL3 (0 << 24) @@ -366,6 +402,8 @@ struct sunxi_ccm_reg { #define CCM_HDMI_CTRL_DDC_GATE (0x1 << 30) #define CCM_HDMI_CTRL_GATE (0x1 << 31) +#define CCM_HDMI_SLOW_CTRL_DDC_GATE (1 << 31) + #if defined(CONFIG_MACH_SUN50I) #define MBUS_CLK_DEFAULT 0x81000002 /* PLL6x2 / 3 */ #elif defined(CONFIG_MACH_SUN8I) @@ -393,9 +431,16 @@ struct sunxi_ccm_reg { #define AHB_RESET_OFFSET_DRC0 25 #define AHB_RESET_OFFSET_DE_FE0 14 #define AHB_RESET_OFFSET_DE_BE0 12 +#define AHB_RESET_OFFSET_DE 12 #define AHB_RESET_OFFSET_HDMI 11 +#define AHB_RESET_OFFSET_HDMI2 10 +#ifndef CONFIG_SUNXI_DE2 #define AHB_RESET_OFFSET_LCD1 5 #define AHB_RESET_OFFSET_LCD0 4 +#else +#define AHB_RESET_OFFSET_LCD1 4 +#define AHB_RESET_OFFSET_LCD0 3 +#endif /* ahb_reset2 offsets */ #define AHB_RESET_OFFSET_EPHY 2 @@ -418,6 +463,13 @@ struct sunxi_ccm_reg { #define CCM_DE_CTRL_PLL10 (5 << 24) #define CCM_DE_CTRL_GATE (1 << 31) +/* CCM bits common to all Display Engine 2.0 clock ctrl regs */ +#define CCM_DE2_CTRL_M(n) ((((n) - 1) & 0xf) << 0) +#define CCM_DE2_CTRL_PLL_MASK (3 << 24) +#define CCM_DE2_CTRL_PLL6_2X (0 << 24) +#define CCM_DE2_CTRL_PLL10 (1 << 24) +#define CCM_DE2_CTRL_GATE (0x1 << 31) + /* CCU security switch, H3 only */ #define CCM_SEC_SWITCH_MBUS_NONSEC (1 << 2) #define CCM_SEC_SWITCH_BUS_NONSEC (1 << 1) @@ -426,7 +478,9 @@ struct sunxi_ccm_reg { #ifndef __ASSEMBLY__ void clock_set_pll1(unsigned int hz); void clock_set_pll3(unsigned int hz); +void clock_set_pll3_factors(int m, int n); void clock_set_pll5(unsigned int clk, bool sigma_delta_enable); +void clock_set_pll10(unsigned int hz); void clock_set_pll11(unsigned int clk, bool sigma_delta_enable); void clock_set_mipi_pll(unsigned int hz); unsigned int clock_get_pll3(void); diff --git a/arch/arm/mach-sunxi/clock_sun6i.c b/arch/arm/mach-sunxi/clock_sun6i.c index 9068c88..631bc6e 100644 --- a/arch/arm/mach-sunxi/clock_sun6i.c +++ b/arch/arm/mach-sunxi/clock_sun6i.c @@ -35,7 +35,7 @@ void clock_init_safe(void) clrbits_le32(&prcm->pll_ctrl1, PRCM_PLL_CTRL_LDO_KEY_MASK); #endif -#ifdef CONFIG_MACH_SUN8I_R40 +#if defined(CONFIG_MACH_SUN8I_R40) || defined(CONFIG_MACH_SUN50I) /* Set PLL lock enable bits and switch to old lock mode */ writel(GENMASK(12, 0), &ccm->pll_lock_ctrl); #endif @@ -150,6 +150,22 @@ void clock_set_pll3(unsigned int clk) &ccm->pll3_cfg); } +#ifdef CONFIG_SUNXI_DE2 +void clock_set_pll3_factors(int m, int n) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + + /* PLL3 rate = 24000000 * n / m */ + writel(CCM_PLL3_CTRL_EN | CCM_PLL3_CTRL_INTEGER_MODE | + CCM_PLL3_CTRL_N(n) | CCM_PLL3_CTRL_M(m), + &ccm->pll3_cfg); + + while (!(readl(&ccm->pll3_cfg) & CCM_PLL3_CTRL_LOCK)) + ; +} +#endif + void clock_set_pll5(unsigned int clk, bool sigma_delta_enable) { struct sunxi_ccm_reg * const ccm = @@ -222,6 +238,28 @@ done: } #endif +#ifdef CONFIG_SUNXI_DE2 +void clock_set_pll10(unsigned int clk) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + const int m = 2; /* 12 MHz steps */ + + if (clk == 0) { + clrbits_le32(&ccm->pll10_cfg, CCM_PLL10_CTRL_EN); + return; + } + + /* PLL10 rate = 24000000 * n / m */ + writel(CCM_PLL10_CTRL_EN | CCM_PLL10_CTRL_INTEGER_MODE | + CCM_PLL10_CTRL_N(clk / (24000000 / m)) | CCM_PLL10_CTRL_M(m), + &ccm->pll10_cfg); + + while (!(readl(&ccm->pll10_cfg) & CCM_PLL10_CTRL_LOCK)) + ; +} +#endif + #if defined(CONFIG_MACH_SUN8I_A33) || \ defined(CONFIG_MACH_SUN8I_R40) || \ defined(CONFIG_MACH_SUN50I) diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig index c4fba84..7350e25 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -58,6 +58,7 @@ config SUNXI_GEN_SUN6I config MACH_SUNXI_H3_H5 bool + select SUNXI_DE2 select SUNXI_GEN_SUN6I select SUPPORT_SPL @@ -153,6 +154,7 @@ config MACH_SUN9I config MACH_SUN50I bool "sun50i (Allwinner A64)" select ARM64 + select SUNXI_DE2 select SUNXI_GEN_SUN6I select SUNXI_HIGH_SRAM select SUPPORT_SPL @@ -689,6 +691,10 @@ config VIDEO_LCD_IF_PARALLEL config VIDEO_LCD_IF_LVDS bool +config SUNXI_DE2 + bool + default n + choice prompt "LCD panel support" diff --git a/drivers/video/sunxi/lcdc.c b/drivers/video/sunxi/lcdc.c index 8c8fb2e..7d215b7 100644 --- a/drivers/video/sunxi/lcdc.c +++ b/drivers/video/sunxi/lcdc.c @@ -74,9 +74,11 @@ void lcdc_tcon0_mode_set(struct sunxi_lcdc_reg * const lcdc, { int bp, clk_delay, total, val; +#ifndef CONFIG_SUNXI_DE2 /* Use tcon0 */ clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, SUNXI_LCDC_CTRL_IO_MAP_TCON0); +#endif clk_delay = lcdc_get_clk_delay(mode, 0); writel(SUNXI_LCDC_TCON0_CTRL_ENABLE | @@ -149,9 +151,11 @@ void lcdc_tcon1_mode_set(struct sunxi_lcdc_reg * const lcdc, { int bp, clk_delay, total, val, yres; +#ifndef CONFIG_SUNXI_DE2 /* Use tcon1 */ clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, SUNXI_LCDC_CTRL_IO_MAP_TCON1); +#endif clk_delay = lcdc_get_clk_delay(mode, 1); writel(SUNXI_LCDC_TCON1_CTRL_ENABLE | -- 2.7.4