From 7fc9bb1acac85c3267eaa1263ae66dcd2c5fe65f Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 27 Oct 2014 23:02:08 +0000
Subject: bcm53xx: initial support for kernel 3.18
This adds initial support for kernel 3.18.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 43097
---
.../123-bcma-get-sprom-from-devicetree.patch | 88 ++++++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 target/linux/bcm53xx/patches-3.18/123-bcma-get-sprom-from-devicetree.patch
(limited to 'target/linux/bcm53xx/patches-3.18/123-bcma-get-sprom-from-devicetree.patch')
diff --git a/target/linux/bcm53xx/patches-3.18/123-bcma-get-sprom-from-devicetree.patch b/target/linux/bcm53xx/patches-3.18/123-bcma-get-sprom-from-devicetree.patch
new file mode 100644
index 0000000..fbc75ce
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/123-bcma-get-sprom-from-devicetree.patch
@@ -0,0 +1,88 @@
+From bd9106f5907080b467026bdaaea979fac8c7badb Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 4 May 2014 14:34:31 +0200
+Subject: [PATCH 06/17] bcma: get sprom from devicetree
+
+This patch make it possible to device an sprom provider in device tree
+and get the sprom from this driver. Every time there is such a provider
+it gets asked for a sprom.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/bcma/sprom.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 50 insertions(+), 1 deletion(-)
+
+--- a/drivers/bcma/sprom.c
++++ b/drivers/bcma/sprom.c
+@@ -15,6 +15,8 @@
+ #include <linux/io.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/slab.h>
++#include <linux/of.h>
++#include <linux/of_platform.h>
+
+ static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out);
+
+@@ -46,6 +48,46 @@ int bcma_arch_register_fallback_sprom(in
+ return 0;
+ }
+
++#ifdef CONFIG_OF
++static int bcma_fill_sprom_with_dt(struct bcma_bus *bus,
++ struct ssb_sprom *out)
++{
++ const __be32 *handle;
++ struct device_node *sprom_node;
++ struct platform_device *sprom_dev;
++ struct ssb_sprom *sprom;
++
++ if (!bus->host_pdev || !bus->host_pdev->dev.of_node)
++ return -ENOENT;
++
++ handle = of_get_property(bus->host_pdev->dev.of_node, "sprom", NULL);
++ if (!handle)
++ return -ENOENT;
++
++ sprom_node = of_find_node_by_phandle(be32_to_cpup(handle));
++ if (!sprom_node)
++ return -ENOENT;
++
++ sprom_dev = of_find_device_by_node(sprom_node);
++ if (!sprom_dev)
++ return -ENOENT;
++
++ sprom = platform_get_drvdata(sprom_dev);
++ if (!sprom)
++ return -ENOENT;
++
++ memcpy(out, sprom, sizeof(*out));
++
++ return 0;
++}
++#else
++static int bcma_fill_sprom_with_dt(struct bcma_bus *bus,
++ struct ssb_sprom *out)
++{
++ return -ENOENT;
++}
++#endif
++
+ static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus,
+ struct ssb_sprom *out)
+ {
+@@ -580,7 +622,14 @@ int bcma_sprom_get(struct bcma_bus *bus)
+ u16 *sprom;
+ size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4,
+ SSB_SPROMSIZE_WORDS_R10, };
+- int i, err = 0;
++ int i, err;
++
++ err = bcma_fill_sprom_with_dt(bus, &bus->sprom);
++ if (err == 0) {
++ bcma_info(bus, "Found sprom from device tree provider\n");
++ return 0;
++ }
++ err = 0;
+
+ if (!bus->drv_cc.core)
+ return -EOPNOTSUPP;
--
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