[PATCH 58/89 v5] drm/i915/skl: Register definitions for SKL Clocks

Damien Lespiau
2014-11-04T16:16:47Z

From: Satheeshakrishna M <satheeshakrishna.m@intel.com>

This patch defines the necessary SKL registers for implementing the
new clocking mechanism.

v2: Addressed review comments by Damien
- Added code comment
- Introduced enum for WRPLL values

v3: Rebase on top of nightly (minor conflict in i915_reg.h)

v4: Use 0x, not 0X (Ville)

v5: Modified as per review comments from Paulo

Signed-off-by: Satheeshakrishna M <satheeshakrishna.m@intel.com> (v2)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (v3,v4)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 72 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 15f227b..eb35d05 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6434,6 +6434,78 @@ enum punit_power_well {
#define LCPLL_CD_SOURCE_FCLK (1<<21)
#define LCPLL_CD_SOURCE_FCLK_DONE (1<<19)

+/*
+ * SKL Clocks
+ */
+
+/* CDCLK_CTL */
+#define CDCLK_CTL 0x46000
+#define CDCLK_FREQ_SEL_MASK (3<<26)
+#define CDCLK_FREQ_450_432 (0<<26)
+#define CDCLK_FREQ_540 (1<<26)
+#define CDCLK_FREQ_337_308 (2<<26)
+#define CDCLK_FREQ_675_617 (3<<26)
+#define CDCLK_FREQ_DECIMAL_MASK (0x7ff)
+
+/* LCPLL_CTL */
+#define LCPLL1_CTL 0x46010
+#define LCPLL2_CTL 0x46014
+#define LCPLL_PLL_ENABLE (1<<31)
+
+/* DPLL control1 */
+#define DPLL_CTRL1 0x6C058
+#define DPLL_CTRL1_HDMI_MODE(id) (1<<((id)*6+5))
+#define DPLL_CTRL1_SSC(id) (1<<((id)*6+4))
+#define DPLL_CRTL1_LINK_RATE_MASK(id) (7<<((id)*6+1))
+#define DPLL_CRTL1_LINK_RATE(linkrate, id) ((linkrate)<<((id)*6+1))
+#define DPLL_CTRL1_OVERRIDE(id) (1<<((id)*6))
+#define DPLL_CRTL1_LINK_RATE_2700 0
+#define DPLL_CRTL1_LINK_RATE_1350 1
+#define DPLL_CRTL1_LINK_RATE_810 2
+#define DPLL_CRTL1_LINK_RATE_1620 3
+#define DPLL_CRTL1_LINK_RATE_1080 4
+#define DPLL_CRTL1_LINK_RATE_2160 5
+
+/* DPLL control2 */
+#define DPLL_CTRL2 0x6C05C
+#define DPLL_CTRL2_DDI_CLK_OFF(port) (1<<(port+15))
+#define DPLL_CTRL2_DDI_CLK_SEL_MASK(port) (3<<((port)*3+1))
+#define DPLL_CTRL2_DDI_CLK_SEL(clk, port) (clk<<((port)*3+1))
+#define DPLL_CTRL2_DDI_SEL_OVERRIDE(port) (1<<((port)*3))
+
+/* DPLL Status */
+#define DPLL_STATUS 0x6C060
+#define DPLL_LOCK(id) (1<<((id)*8))
+
+/* DPLL cfg */
+#define DPLL1_CFGCR1 0x6C040
+#define DPLL2_CFGCR1 0x6C048
+#define DPLL3_CFGCR1 0x6C050
+#define DPLL_CFGCR1_FREQ_ENABLE (1<<31)
+#define DPLL_CFGCR1_DCO_FRACTION_MASK (0x7fff<<9)
+#define DPLL_CFGCR1_DCO_FRACTION(x) (x<<9)
+#define DPLL_CFGCR1_DCO_INTEGER_MASK (0x1ff)
+
+#define DPLL1_CFGCR2 0x6C044
+#define DPLL2_CFGCR2 0x6C04C
+#define DPLL3_CFGCR2 0x6C054
+#define DPLL_CFGCR2_QDIV_RATIO_MASK (0xff<<8)
+#define DPLL_CFGCR2_QDIV_RATIO(x) (x<<8)
+#define DPLL_CFGCR2_QDIV_MODE(x) (x<<7)
+#define DPLL_CFGCR2_KDIV_MASK (3<<5)
+#define DPLL_CFGCR2_KDIV(x) (x<<5)
+#define DPLL_CFGCR2_KDIV_5 (0<<5)
+#define DPLL_CFGCR2_KDIV_2 (1<<5)
+#define DPLL_CFGCR2_KDIV_3 (2<<5)
+#define DPLL_CFGCR2_KDIV_1 (3<<5)
+#define DPLL_CFGCR2_PDIV_MASK (7<<2)
+#define DPLL_CFGCR2_PDIV(x) (x<<2)
+#define DPLL_CFGCR2_PDIV_1 (0<<2)
+#define DPLL_CFGCR2_PDIV_2 (1<<2)
+#define DPLL_CFGCR2_PDIV_3 (2<<2)
+#define DPLL_CFGCR2_PDIV_7 (4<<2)
+#define DPLL_CFGCR2_CENTRAL_FREQ_MASK (3)
+
/* Please see hsw_read_dcomp() and hsw_write_dcomp() before using this register,
* since on HSW we can't write to it using I915_WRITE. */
#define D_COMP_HSW (MCHBAR_MIRROR_BASE_SNB + 0x5F0C)
--
1.8.3.1

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