From cdc7ea333719e9896da1440f6bf0f0178023797e Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Thu, 29 May 2014 19:25:40 +0000 Subject: 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 SVN-Revision: 40880 --- .../123-bcma-get-sprom-from-devicetree.patch | 88 ++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 target/linux/bcm53xx/patches-3.14/123-bcma-get-sprom-from-devicetree.patch (limited to 'target/linux/bcm53xx/patches-3.14/123-bcma-get-sprom-from-devicetree.patch') diff --git a/target/linux/bcm53xx/patches-3.14/123-bcma-get-sprom-from-devicetree.patch b/target/linux/bcm53xx/patches-3.14/123-bcma-get-sprom-from-devicetree.patch new file mode 100644 index 0000000000..e071641088 --- /dev/null +++ b/target/linux/bcm53xx/patches-3.14/123-bcma-get-sprom-from-devicetree.patch @@ -0,0 +1,88 @@ +From 5d94449a92e4121b408e7cb8931a47984135eeea Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens +Date: Sun, 4 May 2014 14:34:31 +0200 +Subject: [PATCH 07/15] 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 +--- + 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 + #include + #include ++#include ++#include + + 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 phandle *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) + { +@@ -553,7 +595,14 @@ 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; -- cgit v1.2.3