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-rw-r--r--target/linux/brcm2708/patches-4.1/0114-firmware-bcm2835-Support-ARCH_BCM270x.patch106
1 files changed, 106 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0114-firmware-bcm2835-Support-ARCH_BCM270x.patch b/target/linux/brcm2708/patches-4.1/0114-firmware-bcm2835-Support-ARCH_BCM270x.patch
new file mode 100644
index 0000000000..d5adb59e7c
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.1/0114-firmware-bcm2835-Support-ARCH_BCM270x.patch
@@ -0,0 +1,106 @@
+From d72c334f7fe3305ae13034ac0562123c26820ade Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 26 Jun 2015 14:25:01 +0200
+Subject: [PATCH 114/121] firmware: bcm2835: Support ARCH_BCM270x
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Support booting without Device Tree.
+Turn on USB power.
+Load driver early because of lacking support for deferred probing
+in many drivers.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/firmware/raspberrypi.c | 41 +++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 39 insertions(+), 2 deletions(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -28,6 +28,8 @@ struct rpi_firmware {
+ u32 enabled;
+ };
+
++static struct platform_device *g_pdev;
++
+ static DEFINE_MUTEX(transaction_lock);
+
+ static void response_callback(struct mbox_client *cl, void *msg)
+@@ -183,6 +185,25 @@ rpi_firmware_print_firmware_revision(str
+ }
+ }
+
++static int raspberrypi_firmware_set_power(struct rpi_firmware *fw,
++ u32 domain, bool on)
++{
++ struct {
++ u32 domain;
++ u32 on;
++ } packet;
++ int ret;
++
++ packet.domain = domain;
++ packet.on = on;
++ ret = rpi_firmware_property(fw, RPI_FIRMWARE_SET_POWER_STATE,
++ &packet, sizeof(packet));
++ if (!ret && packet.on != on)
++ ret = -EINVAL;
++
++ return ret;
++}
++
+ static int rpi_firmware_probe(struct platform_device *pdev)
+ {
+ struct device *dev = &pdev->dev;
+@@ -207,9 +228,13 @@ static int rpi_firmware_probe(struct pla
+ init_completion(&fw->c);
+
+ platform_set_drvdata(pdev, fw);
++ g_pdev = pdev;
+
+ rpi_firmware_print_firmware_revision(fw);
+
++ if (raspberrypi_firmware_set_power(fw, 3, true))
++ dev_err(dev, "failed to turn on USB power\n");
++
+ return 0;
+ }
+
+@@ -218,6 +243,7 @@ static int rpi_firmware_remove(struct pl
+ struct rpi_firmware *fw = platform_get_drvdata(pdev);
+
+ mbox_free_channel(fw->chan);
++ g_pdev = NULL;
+
+ return 0;
+ }
+@@ -230,7 +256,7 @@ static int rpi_firmware_remove(struct pl
+ */
+ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
+ {
+- struct platform_device *pdev = of_find_device_by_node(firmware_node);
++ struct platform_device *pdev = g_pdev;
+
+ if (!pdev)
+ return NULL;
+@@ -253,7 +279,18 @@ static struct platform_driver rpi_firmwa
+ .probe = rpi_firmware_probe,
+ .remove = rpi_firmware_remove,
+ };
+-module_platform_driver(rpi_firmware_driver);
++
++static int __init rpi_firmware_init(void)
++{
++ return platform_driver_register(&rpi_firmware_driver);
++}
++subsys_initcall(rpi_firmware_init);
++
++static void __init rpi_firmware_exit(void)
++{
++ platform_driver_unregister(&rpi_firmware_driver);
++}
++module_exit(rpi_firmware_exit);
+
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("Raspberry Pi firmware driver");