sunxi: Add video pll clock functions

This is a preparation patch for adding support for HDMI out.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

3 files changed, 105 insertions, 1 deletions

diff --git a/arch/arm/include/asm/arch-sunxi/clock.h b/arch/arm/include/asm/arch-sunxi/clock.h
index b40c16b6e7..64acff3504 100644
--- a/arch/arm/include/asm/arch-sunxi/clock.h
+++ b/arch/arm/include/asm/arch-sunxi/clock.h
@@ -25,9 +25,11 @@
 int clock_init(void);
 int clock_twi_onoff(int port, int state);
 void clock_set_pll1(unsigned int hz);
+void clock_set_pll3(unsigned int hz);
 void clock_set_pll5(unsigned int hz);
 unsigned int clock_get_pll5p(void);
 unsigned int clock_get_pll6(void);
+void clock_set_de_mod_clock(u32 *clk_cfg, unsigned int hz);
 void clock_init_safe(void);
 void clock_init_uart(void);
 #endif
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
index 6c0430ccde..eb889695d9 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h
@@ -186,12 +186,20 @@ struct sunxi_ccm_reg {
 
 /* ahb clock gate bit offset (second register) */
 #define AHB_GATE_OFFSET_GMAC		17
+#define AHB_GATE_OFFSET_DE_BE0		12
+#define AHB_GATE_OFFSET_HDMI		11
+#define AHB_GATE_OFFSET_LCD1		5
+#define AHB_GATE_OFFSET_LCD0		4
 
 #define CCM_AHB_GATE_GPS (0x1 << 26)
 #define CCM_AHB_GATE_SDRAM (0x1 << 14)
 #define CCM_AHB_GATE_DLL (0x1 << 15)
 #define CCM_AHB_GATE_ACE (0x1 << 16)
 
+#define CCM_PLL3_CTRL_M(n)		(((n) & 0x7f) << 0)
+#define CCM_PLL3_CTRL_INTEGER_MODE	(0x1 << 15)
+#define CCM_PLL3_CTRL_EN		(0x1 << 31)
+
 #define CCM_PLL5_CTRL_M(n) (((n) & 0x3) << 0)
 #define CCM_PLL5_CTRL_M_MASK CCM_PLL5_CTRL_M(0x3)
 #define CCM_PLL5_CTRL_M_X(n) ((n) - 1)
@@ -253,6 +261,34 @@ struct sunxi_ccm_reg {
 
 #define CCM_MMC_CTRL_ENABLE (0x1 << 31)
 
+#define CCM_DRAM_GATE_OFFSET_DE_BE0	26
+
+#define CCM_LCD_CH0_CTRL_PLL3		(0 << 24)
+#define CCM_LCD_CH0_CTRL_PLL7		(1 << 24)
+#define CCM_LCD_CH0_CTRL_PLL3_2X	(2 << 24)
+#define CCM_LCD_CH0_CTRL_PLL7_2X	(3 << 24)
+#define CCM_LCD_CH0_CTRL_RST		(0x1 << 30)
+#define CCM_LCD_CH0_CTRL_GATE		(0x1 << 31)
+
+#define CCM_LCD_CH1_CTRL_M(n)		((((n) - 1) & 0xf) << 0)
+/* We leave bit 11 set to 0, so sclk1 == sclk2 */
+#define CCM_LCD_CH1_CTRL_PLL3		(0 << 24)
+#define CCM_LCD_CH1_CTRL_PLL7		(1 << 24)
+#define CCM_LCD_CH1_CTRL_PLL3_2X	(2 << 24)
+#define CCM_LCD_CH1_CTRL_PLL7_2X	(3 << 24)
+/* Enable / disable both ch1 sclk1 and sclk2 at the same time */
+#define CCM_LCD_CH1_CTRL_GATE		(0x1 << 31 | 0x1 << 15)
+
+#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)
+#define CCM_HDMI_CTRL_PLL7		(1 << 24)
+#define CCM_HDMI_CTRL_PLL3_2X		(2 << 24)
+#define CCM_HDMI_CTRL_PLL7_2X		(3 << 24)
+/* No separate ddc gate on sun4i, sun5i and sun7i */
+#define CCM_HDMI_CTRL_DDC_GATE		0
+#define CCM_HDMI_CTRL_GATE		(0x1 << 31)
+
 #define CCM_GMAC_CTRL_TX_CLK_SRC_MII 0x0
 #define CCM_GMAC_CTRL_TX_CLK_SRC_EXT_RGMII 0x1
 #define CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII 0x2
@@ -266,4 +302,13 @@ struct sunxi_ccm_reg {
 #define CCM_USB_CTRL_PHY1_CLK 0
 #define CCM_USB_CTRL_PHY2_CLK 0
 
+/* CCM bits common to all Display Engine (and IEP) clock ctrl regs */
+#define CCM_DE_CTRL_M(n)		((((n) - 1) & 0xf) << 0)
+#define CCM_DE_CTRL_PLL_MASK		(3 << 24)
+#define CCM_DE_CTRL_PLL3		(0 << 24)
+#define CCM_DE_CTRL_PLL7		(1 << 24)
+#define CCM_DE_CTRL_PLL5P		(2 << 24)
+#define CCM_DE_CTRL_RST			(1 << 30)
+#define CCM_DE_CTRL_GATE		(1 << 31)
+
 #endif /* _SUNXI_CLOCK_SUN4I_H */
diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
index e16a7647ed..50a4b699aa 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
@@ -176,13 +176,18 @@ struct sunxi_ccm_reg {
 #define CCM_PLL1_CTRL_MAGIC		(0x1 << 16)
 #define CCM_PLL1_CTRL_EN		(0x1 << 31)
 
+#define CCM_PLL3_CTRL_M(n)		((((n) - 1) & 0xf) << 0)
+#define CCM_PLL3_CTRL_N(n)		((((n) - 1) & 0x7f) << 8)
+#define CCM_PLL3_CTRL_INTEGER_MODE	(0x1 << 24)
+#define CCM_PLL3_CTRL_EN		(0x1 << 31)
+
 #define CCM_PLL5_CTRL_M(n)		((((n) - 1) & 0x3) << 0)
 #define CCM_PLL5_CTRL_K(n)		((((n) - 1) & 0x3) << 4)
 #define CCM_PLL5_CTRL_N(n)		((((n) - 1) & 0x1f) << 8)
 #define CCM_PLL5_CTRL_UPD		(0x1 << 20)
 #define CCM_PLL5_CTRL_EN		(0x1 << 31)
 
-#define PLL6_CFG_DEFAULT		0x90041811
+#define PLL6_CFG_DEFAULT		0x90041811 /* 600 MHz */
 
 #define CCM_PLL6_CTRL_N_SHIFT		8
 #define CCM_PLL6_CTRL_N_MASK		(0x1f << CCM_PLL6_CTRL_N_SHIFT)
@@ -193,6 +198,7 @@ struct sunxi_ccm_reg {
 
 #define AXI_GATE_OFFSET_DRAM		0
 
+/* ahb_gate0 offsets */
 #define AHB_GATE_OFFSET_USB_OHCI1	30
 #define AHB_GATE_OFFSET_USB_OHCI0	29
 #define AHB_GATE_OFFSET_USB_EHCI1	27
@@ -204,6 +210,13 @@ struct sunxi_ccm_reg {
 #define AHB_GATE_OFFSET_MMC0		8
 #define AHB_GATE_OFFSET_MMC(n)		(AHB_GATE_OFFSET_MMC0 + (n))
 
+/* ahb_gate1 offsets */
+#define AHB_GATE_OFFSET_DRC0		25
+#define AHB_GATE_OFFSET_DE_BE0		12
+#define AHB_GATE_OFFSET_HDMI		11
+#define AHB_GATE_OFFSET_LCD1		5
+#define AHB_GATE_OFFSET_LCD0		4
+
 #define CCM_MMC_CTRL_OSCM24 (0x0 << 24)
 #define CCM_MMC_CTRL_PLL6   (0x1 << 24)
 
@@ -223,8 +236,34 @@ struct sunxi_ccm_reg {
 #define CCM_DRAMCLK_CFG_UPD		(0x1 << 16)
 #define CCM_DRAMCLK_CFG_RST		(0x1 << 31)
 
+#define CCM_DRAM_GATE_OFFSET_DE_BE0	26
+
+#define CCM_LCD_CH0_CTRL_PLL3		(0 << 24)
+#define CCM_LCD_CH0_CTRL_PLL7		(1 << 24)
+#define CCM_LCD_CH0_CTRL_PLL3_2X	(2 << 24)
+#define CCM_LCD_CH0_CTRL_PLL7_2X	(3 << 24)
+#define CCM_LCD_CH0_CTRL_MIPI_PLL	(4 << 24)
+#define CCM_LCD_CH0_CTRL_GATE		(0x1 << 31)
+
+#define CCM_LCD_CH1_CTRL_M(n)		((((n) - 1) & 0xf) << 0)
+#define CCM_LCD_CH1_CTRL_PLL3		(0 << 24)
+#define CCM_LCD_CH1_CTRL_PLL7		(1 << 24)
+#define CCM_LCD_CH1_CTRL_PLL3_2X	(2 << 24)
+#define CCM_LCD_CH1_CTRL_PLL7_2X	(3 << 24)
+#define CCM_LCD_CH1_CTRL_GATE		(0x1 << 31)
+
+#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)
+#define CCM_HDMI_CTRL_PLL7		(1 << 24)
+#define CCM_HDMI_CTRL_PLL3_2X		(2 << 24)
+#define CCM_HDMI_CTRL_PLL7_2X		(3 << 24)
+#define CCM_HDMI_CTRL_DDC_GATE		(0x1 << 30)
+#define CCM_HDMI_CTRL_GATE		(0x1 << 31)
+
 #define MBUS_CLK_DEFAULT		0x81000001 /* PLL6 / 2 */
 
+/* ahb_reset0 offsets */
 #define AHB_RESET_OFFSET_MCTL		14
 #define AHB_RESET_OFFSET_MMC3		11
 #define AHB_RESET_OFFSET_MMC2		10
@@ -232,10 +271,28 @@ struct sunxi_ccm_reg {
 #define AHB_RESET_OFFSET_MMC0		8
 #define AHB_RESET_OFFSET_MMC(n)		(AHB_RESET_OFFSET_MMC0 + (n))
 
+/* ahb_reset0 offsets */
+#define AHB_RESET_OFFSET_DRC0		25
+#define AHB_RESET_OFFSET_DE_BE0		12
+#define AHB_RESET_OFFSET_HDMI		11
+#define AHB_RESET_OFFSET_LCD1		5
+#define AHB_RESET_OFFSET_LCD0		4
+
 /* apb2 reset */
 #define APB2_RESET_UART_SHIFT		(16)
 #define APB2_RESET_UART_MASK		(0xff << APB2_RESET_UART_SHIFT)
 #define APB2_RESET_TWI_SHIFT		(0)
 #define APB2_RESET_TWI_MASK		(0xf << APB2_RESET_TWI_SHIFT)
 
+/* CCM bits common to all Display Engine (and IEP) clock ctrl regs */
+#define CCM_DE_CTRL_M(n)		((((n) - 1) & 0xf) << 0)
+#define CCM_DE_CTRL_PLL_MASK		(0xf << 24)
+#define CCM_DE_CTRL_PLL3		(0 << 24)
+#define CCM_DE_CTRL_PLL7		(1 << 24)
+#define CCM_DE_CTRL_PLL6_2X		(2 << 24)
+#define CCM_DE_CTRL_PLL8		(3 << 24)
+#define CCM_DE_CTRL_PLL9		(4 << 24)
+#define CCM_DE_CTRL_PLL10		(5 << 24)
+#define CCM_DE_CTRL_GATE		(1 << 31)
+
 #endif /* _SUNXI_CLOCK_SUN6I_H */