bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

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

1 files changed, 0 insertions, 48 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0142-bcm2835-dma-Add-support-for-per-channel-flags.patch b/target/linux/bcm27xx/patches-5.4/950-0142-bcm2835-dma-Add-support-for-per-channel-flags.patch
deleted file mode 100644
index 8f68768588..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0142-bcm2835-dma-Add-support-for-per-channel-flags.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From d70a417420f9d10e86031ec24da68b71668aa833 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Fri, 20 Jul 2018 22:03:41 +0100
-Subject: [PATCH] bcm2835-dma: Add support for per-channel flags
-
-Add the ability to interpret the high bits of the dreq specifier as
-flags to be included in the DMA_CS register. The motivation for this
-change is the ability to set the DISDEBUG flag for SD card transfers
-to avoid corruption when using the VPU debugger.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/dma/bcm2835-dma.c | 10 ++++++++--
- 1 file changed, 8 insertions(+), 2 deletions(-)
-
---- a/drivers/dma/bcm2835-dma.c
-+++ b/drivers/dma/bcm2835-dma.c
-@@ -141,6 +141,10 @@ struct bcm2835_desc {
- #define BCM2835_DMA_S_DREQ	BIT(10) /* enable SREQ for source */
- #define BCM2835_DMA_S_IGNORE	BIT(11) /* ignore source reads - read 0 */
- #define BCM2835_DMA_BURST_LENGTH(x) ((x & 15) << 12)
-+#define BCM2835_DMA_CS_FLAGS(x) (x & (BCM2835_DMA_PRIORITY(15) | \
-+				      BCM2835_DMA_PANIC_PRIORITY(15) | \
-+				      BCM2835_DMA_WAIT_FOR_WRITES | \
-+				      BCM2835_DMA_DIS_DEBUG))
- #define BCM2835_DMA_PER_MAP(x)	((x & 31) << 16) /* REQ source */
- #define BCM2835_DMA_WAIT(x)	((x & 31) << 21) /* add DMA-wait cycles */
- #define BCM2835_DMA_NO_WIDE_BURSTS BIT(26) /* no 2 beat write bursts */
-@@ -454,7 +458,8 @@ static void bcm2835_dma_start_desc(struc
- 	c->desc = d = to_bcm2835_dma_desc(&vd->tx);
- 
- 	writel(d->cb_list[0].paddr, c->chan_base + BCM2835_DMA_ADDR);
--	writel(BCM2835_DMA_ACTIVE, c->chan_base + BCM2835_DMA_CS);
-+	writel(BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
-+	       c->chan_base + BCM2835_DMA_CS);
- }
- 
- static irqreturn_t bcm2835_dma_callback(int irq, void *data)
-@@ -481,7 +486,8 @@ static irqreturn_t bcm2835_dma_callback(
- 	 * if this IRQ handler is threaded.) If the channel is finished, it
- 	 * will remain idle despite the ACTIVE flag being set.
- 	 */
--	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
-+	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE |
-+	       BCM2835_DMA_CS_FLAGS(c->dreq),
- 	       c->chan_base + BCM2835_DMA_CS);
- 
- 	d = c->desc;