brcm2708: add linux 4.19 support

Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

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

1 files changed, 32 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0110-raspberrypi-firmware-Export-the-general-transaction-.patch b/target/linux/brcm2708/patches-4.19/950-0110-raspberrypi-firmware-Export-the-general-transaction-.patch
new file mode 100644
index 0000000000..70ec90da63
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0110-raspberrypi-firmware-Export-the-general-transaction-.patch
@@ -0,0 +1,32 @@
+From 48ce2d8a89c63f31a63b636b119a98c3ddbc66e1 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Wed, 14 Sep 2016 09:16:19 +0100
+Subject: [PATCH 110/703] raspberrypi-firmware: Export the general transaction
+ function.
+
+The vc4-firmware-kms module is going to be doing the MBOX FB call.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/firmware/raspberrypi.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -46,7 +46,7 @@ static void response_callback(struct mbo
+  * Sends a request to the firmware through the BCM2835 mailbox driver,
+  * and synchronously waits for the reply.
+  */
+-static int
++int
+ rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
+ {
+ 	u32 message = MBOX_MSG(chan, data);
+@@ -67,6 +67,7 @@ rpi_firmware_transaction(struct rpi_firm
+ 
+ 	return ret;
+ }
++EXPORT_SYMBOL_GPL(rpi_firmware_transaction);
+ 
+ /**
+  * rpi_firmware_property_list - Submit firmware property list