aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch
diff options
context:
space:
mode:
authorHauke Mehrtens <hauke@hauke-m.de>2014-05-29 19:25:40 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2014-05-29 19:25:40 +0000
commitcdc7ea333719e9896da1440f6bf0f0178023797e (patch)
treee601d47af81255f304cd77b310889ea3ccdf346f /target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch
parent50b663de47776e58c790488f6da914ce77eb5347 (diff)
downloadupstream-cdc7ea333719e9896da1440f6bf0f0178023797e.tar.gz
upstream-cdc7ea333719e9896da1440f6bf0f0178023797e.tar.bz2
upstream-cdc7ea333719e9896da1440f6bf0f0178023797e.zip
bcm53xx: add support for the PCIe controller
This patch adds support for the PCIe controller In addition to the PCIe controller a sprom is now provided by a device tree driver to bcma from some nvram. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 40880
Diffstat (limited to 'target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch')
-rw-r--r--target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch76
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch b/target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch
new file mode 100644
index 0000000000..28ad8d514c
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.14/121-bcma-get-irqs-from-dt.patch
@@ -0,0 +1,76 @@
+From 3e59da41882a408064cd23f4c9124a7938bdb91f Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Thu, 9 Jan 2014 19:40:14 +0100
+Subject: [PATCH 06/15] bcma: get irqs from dt
+
+If bcma was registered with device tree it will search for some nodes
+with the irq number and add it to the core configuration.
+---
+ drivers/bcma/main.c | 42 +++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 41 insertions(+), 1 deletion(-)
+
+--- a/drivers/bcma/main.c
++++ b/drivers/bcma/main.c
+@@ -10,6 +10,8 @@
+ #include <linux/platform_device.h>
+ #include <linux/bcma/bcma.h>
+ #include <linux/slab.h>
++#include <linux/of_irq.h>
++#include <linux/of_address.h>
+
+ MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
+ MODULE_LICENSE("GPL");
+@@ -120,6 +122,38 @@ static void bcma_release_core_dev(struct
+ kfree(core);
+ }
+
++static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
++ struct bcma_device *core)
++{
++ struct device_node *node;
++ u64 size;
++ const __be32 *reg;
++
++ if (!parent || !parent->dev.of_node)
++ return NULL;
++
++ for_each_child_of_node(parent->dev.of_node, node) {
++ reg = of_get_address(node, 0, &size, 0);
++ if (!reg)
++ continue;
++ if (be32_to_cpup(reg) == core->addr)
++ return node;
++ }
++ return NULL;
++}
++
++static void bcma_of_fill_device(struct platform_device *parent,
++ struct bcma_device *core)
++{
++ struct device_node *node;
++
++ node = bcma_of_find_child_device(parent, core);
++ if (!node)
++ return;
++ core->dev.of_node = node;
++ core->irq = irq_of_parse_and_map(node, 0);
++}
++
+ static int bcma_register_cores(struct bcma_bus *bus)
+ {
+ struct bcma_device *core;
+@@ -154,7 +188,13 @@ static int bcma_register_cores(struct bc
+ break;
+ case BCMA_HOSTTYPE_SOC:
+ core->dev.dma_mask = &core->dev.coherent_dma_mask;
+- core->dma_dev = &core->dev;
++ if (bus->host_pdev) {
++ core->dma_dev = &bus->host_pdev->dev;
++ core->dev.parent = &bus->host_pdev->dev;
++ bcma_of_fill_device(bus->host_pdev, core);
++ } else {
++ core->dma_dev = &core->dev;
++ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ break;