bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch b/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch
new file mode 100644
index 0000000000..b156c9072e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch
@@ -0,0 +1,71 @@
+From c470db2240fa76293025852533ae8bf1c5679bfb Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 22 Mar 2021 19:43:48 +0000
+Subject: [PATCH] vc4/drm: Fix source offsets with DRM_FORMAT_P030
+
+Spec says: bits [31:4] of the given address should point to
+the 128-bit word containing the desired starting pixel,
+and bits[3:0] should be between 0 and 11, indicating which
+of the 12-pixels in that 128-bit word is the first pixel to be used
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 24 ++++++++++++++++--------
+ 1 file changed, 16 insertions(+), 8 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -824,9 +824,20 @@ static int vc4_plane_mode_set(struct drm
+ 		u32 tile_w, tile, x_off, pix_per_tile;
+ 
+ 		if (fb->format->format == DRM_FORMAT_P030) {
++			/*
++			 * Spec says: bits [31:4] of the given address should point to
++			 * the 128-bit word containing the desired starting pixel,
++			 * and bits[3:0] should be between 0 and 11, indicating which
++			 * of the 12-pixels in that 128-bit word is the first pixel to be used
++			 */
++			u32 aligned = vc4_state->src_x / 12;
++			u32 last_bits = vc4_state->src_x % 12;
++
++			x_off = aligned * 16 + last_bits;
+ 			hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT;
+ 			tiling = SCALER_CTL0_TILING_128B;
+-			tile_w = 96;
++			tile_w = 128;
++			pix_per_tile = 96;
+ 		} else {
+ 			hvs_format = HVS_PIXEL_FORMAT_H264;
+ 
+@@ -846,17 +857,16 @@ static int vc4_plane_mode_set(struct drm
+ 			default:
+ 				break;
+ 			}
++			pix_per_tile = tile_w / fb->format->cpp[0];
++			x_off = (vc4_state->src_x % pix_per_tile) /
++				(i ? h_subsample : 1) * fb->format->cpp[i];
+ 		}
+ 		if (param > SCALER_TILE_HEIGHT_MASK) {
+ 			DRM_DEBUG_KMS("SAND height too large (%d)\n",
+ 				      param);
+ 			return -EINVAL;
+ 		}
+-
+-		pix_per_tile = tile_w / fb->format->cpp[0];
+ 		tile = vc4_state->src_x / pix_per_tile;
+-		x_off = vc4_state->src_x % pix_per_tile;
+-
+ 		/* Adjust the base pointer to the first pixel to be scanned
+ 		 * out.
+ 		 *
+@@ -872,9 +882,7 @@ static int vc4_plane_mode_set(struct drm
+ 			vc4_state->offsets[i] += src_y /
+ 						 (i ? v_subsample : 1) *
+ 						 tile_w;
+-			vc4_state->offsets[i] += x_off /
+-						 (i ? h_subsample : 1) *
+-						 fb->format->cpp[i];
++			vc4_state->offsets[i] += x_off & ~(i ? 1 : 0);
+ 		}
+ 
+ 		pitch0 = VC4_SET_FIELD(param, SCALER_TILE_HEIGHT);