brcm63xx: add kernel 4.9 support

Add support for kernel 4.9 based on the more upstream comformant
partition defintions. Increases compressed kernel size by ~95k
compared to 4.4.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-4.9/001-4.12-03-spi-bcm63xx-add-support-for-probing-through-devicetr.patch b/target/linux/brcm63xx/patches-4.9/001-4.12-03-spi-bcm63xx-add-support-for-probing-through-devicetr.patch
new file mode 100644
index 0000000000..97c596ae27
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.9/001-4.12-03-spi-bcm63xx-add-support-for-probing-through-devicetr.patch
@@ -0,0 +1,98 @@
+From 3353228a04a004ec67073871f40cf58dc4e209aa Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Mon, 7 Sep 2015 21:01:38 +0200
+Subject: [PATCH 4/8] spi/bcm63xx: add support for probing through devicetree
+
+Add required binding support to probe through device tree.
+
+Use the compatible instead of the resource size for identifiying the
+block type, and allow reducing the number of cs lines through OF.
+
+Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
+---
+ drivers/spi/spi-bcm63xx.c | 42 ++++++++++++++++++++++++++++++++++++------
+ 1 file changed, 36 insertions(+), 6 deletions(-)
+
+--- a/drivers/spi/spi-bcm63xx.c
++++ b/drivers/spi/spi-bcm63xx.c
+@@ -26,6 +26,7 @@
+ #include <linux/completion.h>
+ #include <linux/err.h>
+ #include <linux/pm_runtime.h>
++#include <linux/of.h>
+ 
+ /* BCM 6338/6348 SPI core */
+ #define SPI_6348_RSET_SIZE		64
+@@ -484,21 +485,48 @@ static const struct platform_device_id b
+ 	},
+ };
+ 
++static const struct of_device_id bcm63xx_spi_of_match[] = {
++	{ .compatible = "brcm,bcm6348-spi", .data = &bcm6348_spi_reg_offsets },
++	{ .compatible = "brcm,bcm6358-spi", .data = &bcm6358_spi_reg_offsets },
++	{ },
++};
++
+ static int bcm63xx_spi_probe(struct platform_device *pdev)
+ {
+ 	struct resource *r;
+ 	const unsigned long *bcm63xx_spireg;
+ 	struct device *dev = &pdev->dev;
+-	int irq;
++	int irq, bus_num;
+ 	struct spi_master *master;
+ 	struct clk *clk;
+ 	struct bcm63xx_spi *bs;
+ 	int ret;
++	u32 num_cs = BCM63XX_SPI_MAX_CS;
+ 
+-	if (!pdev->id_entry->driver_data)
+-		return -EINVAL;
++	if (dev->of_node) {
++		const struct of_device_id *match;
+ 
+-	bcm63xx_spireg = (const unsigned long *)pdev->id_entry->driver_data;
++		match = of_match_node(bcm63xx_spi_of_match, dev->of_node);
++		if (!match)
++			return -EINVAL;
++		bcm63xx_spireg = match->data;
++
++		of_property_read_u32(dev->of_node, "num-cs", &num_cs);
++		if (num_cs > BCM63XX_SPI_MAX_CS) {
++			dev_warn(dev, "unsupported number of cs (%i), reducing to 8\n",
++				 num_cs);
++			num_cs = BCM63XX_SPI_MAX_CS;
++		}
++
++		bus_num = -1;
++	} else if (pdev->id_entry->driver_data) {
++		const struct platform_device_id *match = pdev->id_entry;
++
++		bcm63xx_spireg = (const unsigned long *)match->driver_data;
++		bus_num = BCM63XX_SPI_BUS_NUM;
++	} else {
++		return -EINVAL;
++	}
+ 
+ 	irq = platform_get_irq(pdev, 0);
+ 	if (irq < 0) {
+@@ -543,8 +571,9 @@ static int bcm63xx_spi_probe(struct plat
+ 		goto out_err;
+ 	}
+ 
+-	master->bus_num = BCM63XX_SPI_BUS_NUM;
+-	master->num_chipselect = BCM63XX_SPI_MAX_CS;
++	master->dev.of_node = dev->of_node;
++	master->bus_num = bus_num;
++	master->num_chipselect = num_cs;
+ 	master->transfer_one_message = bcm63xx_spi_transfer_one;
+ 	master->mode_bits = MODEBITS;
+ 	master->bits_per_word_mask = SPI_BPW_MASK(8);
+@@ -633,6 +662,7 @@ static struct platform_driver bcm63xx_sp
+ 	.driver = {
+ 		.name	= "bcm63xx-spi",
+ 		.pm	= &bcm63xx_spi_pm_ops,
++		.of_match_table = bcm63xx_spi_of_match,
+ 	},
+ 	.id_table	= bcm63xx_spi_dev_match,
+ 	.probe		= bcm63xx_spi_probe,