rockchip: move vop driver from rk3288 to rockchip common

The rk3288 and rk3399 can use a common driver even that
there are some different registers.

BRANCH=none
BUG=chrome-os-partner:51537
TEST=boot from veyron_jerry and check display

Change-Id: I510f68ba00308e47608d6e9921154a5c66ad8858
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1d857a7aa68d831a5007210255b121fed7a9e8de
Original-Change-Id: I063e3eebc836debc01c450d8ab9f1524c9a47c56
Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/341633
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/14731
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

3 files changed, 45 insertions, 25 deletions

diff --git a/src/soc/rockchip/rk3288/include/soc/vop.h b/src/soc/rockchip/common/include/soc/vop.h
index b3cd9ffb81..f5ce431faf 100644
--- a/src/soc/rockchip/rk3288/include/soc/vop.h
+++ b/src/soc/rockchip/common/include/soc/vop.h
@@ -13,12 +13,12 @@
  * GNU General Public License for more details.
  */
 
-#ifndef _RK3288_LCD_H_
-#define _RK3288_LCD_H_
+#ifndef _ROCKCHIP_LCD_H_
+#define _ROCKCHIP_LCD_H_
 #include <stdint.h>
 #include <edid.h>
 
-struct rk3288_vop_regs {
+struct rockchip_vop_regs {
 	u32 reg_cfg_done;
 	u32 version_info;
 	u32 sys_ctrl;
@@ -27,11 +27,22 @@ struct rk3288_vop_regs {
 	u32 dsp_ctrl1;
 	u32 dsp_bg;
 	u32 mcu_ctrl;
-	u32 intr_ctrl0;
-	u32 intr_ctrl1;
-	u32 intr_reserved0;
-	u32 intr_reserved1;
-
+	union {
+		u32 intr_ctrl0; /* RK3288 */
+		u32 wb_ctrl0;   /* RK3399 */
+	};
+	union {
+		u32 intr_ctrl1; /* RK3288 */
+		u32 wb_ctrl1;   /* RK3399 */
+	};
+	union {
+		u32 intr_reserved0; /* RK3288 */
+		u32 wb_yrgb_mst;    /* RK3399 */
+	};
+	union {
+		u32 intr_reserved1; /* RK3288 */
+		u32 wb_cbr_mst;     /* RK3399 */
+	};
 	u32 win0_ctrl0;
 	u32 win0_ctrl1;
 	u32 win0_color_key;
@@ -47,8 +58,10 @@ struct rk3288_vop_regs {
 	u32 win0_src_alpha_ctrl;
 	u32 win0_dst_alpha_ctrl;
 	u32 win0_fading_ctrl;
-	u32 win0_reserved0;
-
+	union {
+		u32 win0_reserved0;  /* RK3288 */
+		u32 win0_ctrl2;      /* RK3399 */
+	};
 	u32 win1_ctrl0;
 	u32 win1_ctrl1;
 	u32 win1_color_key;
@@ -64,7 +77,10 @@ struct rk3288_vop_regs {
 	u32 win1_src_alpha_ctrl;
 	u32 win1_dst_alpha_ctrl;
 	u32 win1_fading_ctrl;
-	u32 win1_reservd0;
+	union {
+		u32 win1_reservd0; /* RK3288 */
+		u32 win1_ctrl2;    /* RK3399 */
+	};
 	u32 reserved2[48];
 	u32 post_dsp_hact_info;
 	u32 post_dsp_vact_info;
@@ -79,7 +95,7 @@ struct rk3288_vop_regs {
 	u32 dsp_vs_st_end_f1;
 	u32 dsp_vact_st_end_f1;
 };
-check_member(rk3288_vop_regs, dsp_vact_st_end_f1, 0x19c);
+check_member(rockchip_vop_regs, dsp_vact_st_end_f1, 0x19c);
 
 enum rockchip_fb_data_format_t {
 	ARGB8888 = 0,
@@ -97,9 +113,9 @@ enum {
 };
 
 enum vop_modes {
-	/* EDP == 0 is used for early RK3288 products and is the most likely
-	 * use case, so keep it as the default. Other desired modes should
-	 * be set explicitly in the board's devicetree.cb.
+	/* EDP == 0 is used for most RK3288 products and is the most likely
+	 * use case for RK3399, so keep it as the default. Other desired
+	 * modes should be set explicitly in the board's devicetree.cb.
 	 */
 	VOP_MODE_EDP = 0,
 	VOP_MODE_HDMI,
diff --git a/src/soc/rockchip/rk3288/vop.c b/src/soc/rockchip/common/vop.c
index 607cf8f523..668bee0153 100644
--- a/src/soc/rockchip/rk3288/vop.c
+++ b/src/soc/rockchip/common/vop.c
@@ -24,11 +24,10 @@
 #include <soc/edp.h>
 #include <soc/vop.h>
 
-#include "chip.h"
 
-static struct rk3288_vop_regs * const vop_regs[] = {
-	(struct rk3288_vop_regs *)VOP_BIG_BASE,
-	(struct rk3288_vop_regs *)VOP_LIT_BASE
+static struct rockchip_vop_regs * const vop_regs[] = {
+	(struct rockchip_vop_regs *)VOP_BIG_BASE,
+	(struct rockchip_vop_regs *)VOP_LIT_BASE
 };
 
 void rkvop_enable(u32 vop_id, u32 fbbase, const struct edid *edid)
@@ -42,7 +41,7 @@ void rkvop_enable(u32 vop_id, u32 fbbase, const struct edid *edid)
 	u32 vsync_len = edid->mode.vspw;
 	u32 vback_porch = edid->mode.vbl - edid->mode.vso - edid->mode.vspw;
 	u32 xpos = 0, ypos = 0;
-	struct rk3288_vop_regs *preg = vop_regs[vop_id];
+	struct rockchip_vop_regs *preg = vop_regs[vop_id];
 
 	write32(&preg->win0_act_info,
 		V_ACT_WIDTH(hactive - 1) | V_ACT_HEIGHT(vactive - 1));
@@ -89,7 +88,10 @@ void rkvop_enable(u32 vop_id, u32 fbbase, const struct edid *edid)
 
 	write32(&preg->win0_yrgb_mst, fbbase);
 
-	write32(&preg->reg_cfg_done, 0x01); /* enable reg config */
+	/* On RK3288, the reg_cfg_done[1:31] is reserved and read-only,
+	 * but it's fine to write to it
+	 */
+	write32(&preg->reg_cfg_done, 0xffff); /* enable reg config */
 }
 
 void rkvop_mode_set(u32 vop_id, const struct edid *edid, u32 mode)
@@ -102,7 +104,7 @@ void rkvop_mode_set(u32 vop_id, const struct edid *edid, u32 mode)
 	u32 vfront_porch = edid->mode.vso;
 	u32 vsync_len = edid->mode.vspw;
 	u32 vback_porch = edid->mode.vbl - edid->mode.vso - edid->mode.vspw;
-	struct rk3288_vop_regs *preg = vop_regs[vop_id];
+	struct rockchip_vop_regs *preg = vop_regs[vop_id];
 
 	switch (mode) {
 
@@ -117,7 +119,6 @@ void rkvop_mode_set(u32 vop_id, const struct edid *edid, u32 mode)
 				M_ALL_OUT_EN, V_EDP_OUT_EN(1));
 		break;
 	}
-
 	clrsetbits_le32(&preg->dsp_ctrl0,
 			M_DSP_OUT_MODE | M_DSP_VSYNC_POL | M_DSP_HSYNC_POL,
 			V_DSP_OUT_MODE(15) |
@@ -146,5 +147,8 @@ void rkvop_mode_set(u32 vop_id, const struct edid *edid, u32 mode)
 		V_VAEP(vsync_len + vback_porch + vactive) |
 		V_VASP(vsync_len + vback_porch));
 
-	write32(&preg->reg_cfg_done, 0x01); /* enable reg config */
+	/* On RK3288, the reg_cfg_done[1:31] is reserved and read-only,
+	 * but it's fine to write to it
+	 */
+	write32(&preg->reg_cfg_done, 0xffff); /* enable reg config */
 }
diff --git a/src/soc/rockchip/rk3288/Makefile.inc b/src/soc/rockchip/rk3288/Makefile.inc
index 9d0e9c2c41..b29038db2a 100644
--- a/src/soc/rockchip/rk3288/Makefile.inc
+++ b/src/soc/rockchip/rk3288/Makefile.inc
@@ -67,7 +67,7 @@ ramstage-y += ../common/gpio.c
 ramstage-y += gpio.c
 ramstage-y += ../common/rk808.c
 ramstage-y += ../common/pwm.c
-ramstage-y += vop.c
+ramstage-y += ../common/vop.c
 ramstage-y += ../common/edp.c
 ramstage-y += hdmi.c
 ramstage-y += display.c