[U-Boot] [PATCH v3 3/6] sunxi: Add clock support for DE2/HDMI/TCON on newer SoCs
Jernej Skrabec
jernej.skrabec at siol.net
Mon Mar 27 17:22:31 UTC 2017
This is needed for HDMI, which will be added later.
Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Changes in v3:
- convert define to Kconfig option
Changes in v2:
- add reviewed by tag
- constant style fix
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 1aefd5a64c..a44ea77576 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 3c8c53fcf7..7a59f4cd74 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_SUN50I)
void clock_set_pll11(unsigned int clk, bool sigma_delta_enable)
{
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 3e0e262473..d9e7059a9b 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -56,6 +56,7 @@ config SUNXI_GEN_SUN6I
config MACH_SUNXI_H3_H5
bool
+ select SUNXI_DE2
select SUNXI_GEN_SUN6I
select SUPPORT_SPL
@@ -142,6 +143,7 @@ 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
@@ -704,6 +706,10 @@ config VIDEO_LCD_TL059WV5C0
endchoice
+config SUNXI_DE2
+ bool
+ default n
+
config GMAC_TX_DELAY
int "GMAC Transmit Clock Delay Chain"
diff --git a/drivers/video/sunxi/lcdc.c b/drivers/video/sunxi/lcdc.c
index 8c8fb2e4ee..7d215b713e 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 |
--
2.12.1
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