823659f458
This fixes lots of sparse and checkpatch errors and extends the documentation. This also fixes a problem in the nvram parser, it now detects the correct nvram on my Netgear R6250. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 42272
80 lines
2.2 KiB
Diff
80 lines
2.2 KiB
Diff
From eaf1943a2c49cbc6eb0ffafa7b6ced45f2d328da 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 05/17] bcma: get IRQ numbers from dt
|
|
|
|
It is not possible to auto detect the irq numbers used by the cores on
|
|
an arm SoC. If bcma was registered with device tree it will search for
|
|
some device tree nodes with the irq number and add it to the core
|
|
configuration.
|
|
|
|
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
|
|
---
|
|
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, NULL);
|
|
+ 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;
|
|
@@ -155,7 +189,13 @@ 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;
|