apm821xx: add support for the Cisco Meraki MR24

This patch adds support for the Cisco Meraki MR24 Access point
to the apm821xx target.

Board:		MR24 - Meraki MR24 Cloud Managed Access Point
CPU:		APM82181 SoC 800 MHz (PLB=200 OPB=100 EBC=100)
Flash size:	32MiB
RAM Size:	128MiB
Wireless:	Atheros AR9380 5.0GHz + Atheros AR9380 2.4GHz
Ethernet ports:	1x Gigabit Atheros AR8035

WARNING: The serial port needs a TTL/RS-232 v3.3 level converter!

For flashing instructions, visit:
<https://github.com/riptidewave93/Openwrt-MR24/blob/master/README.md#flashing>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

2 files changed, 93 insertions, 0 deletions

diff --git a/target/linux/apm821xx/patches-4.4/002-powerpc_ibm_phy_add_ar8035.patch b/target/linux/apm821xx/patches-4.4/002-powerpc_ibm_phy_add_ar8035.patch
new file mode 100644
index 0000000000..b7316e15b3
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/002-powerpc_ibm_phy_add_ar8035.patch
@@ -0,0 +1,62 @@
+From 0c13957a43a90b1522eb616f3c9967ec44e4da1d Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunkeey@googlemail.com>
+Date: Tue, 3 May 2016 13:58:24 +0200
+Subject: [PATCH] drivers: net: emac: add Atheros AR8035 phy initialization
+ code
+To: netdev@vger.kernel.org
+
+This patch adds the phy initialization code for Qualcomm
+Atheros AR8035 phy. This configuration is found in the
+Cisco Meraki MR24.
+
+Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
+---
+ drivers/net/ethernet/ibm/emac/phy.c | 26 ++++++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+
+diff --git a/drivers/net/ethernet/ibm/emac/phy.c b/drivers/net/ethernet/ibm/emac/phy.c
+index d3b9d10..5b88cc6 100644
+--- a/drivers/net/ethernet/ibm/emac/phy.c
++++ b/drivers/net/ethernet/ibm/emac/phy.c
+@@ -470,12 +470,38 @@ static struct mii_phy_def m88e1112_phy_def = {
+ 	.ops		= &m88e1112_phy_ops,
+ };
+ 
++static int ar8035_init(struct mii_phy *phy)
++{
++	phy_write(phy, 0x1d, 0x5); /* Address debug register 5 */
++	phy_write(phy, 0x1e, 0x2d47); /* Value copied from u-boot */
++	phy_write(phy, 0x1d, 0xb);    /* Address hib ctrl */
++	phy_write(phy, 0x1e, 0xbc20); /* Value copied from u-boot */
++
++	return 0;
++}
++
++static struct mii_phy_ops ar8035_phy_ops = {
++	.init		= ar8035_init,
++	.setup_aneg	= genmii_setup_aneg,
++	.setup_forced	= genmii_setup_forced,
++	.poll_link	= genmii_poll_link,
++	.read_link	= genmii_read_link,
++};
++
++static struct mii_phy_def ar8035_phy_def = {
++	.phy_id		= 0x004dd070,
++	.phy_id_mask	= 0xfffffff0,
++	.name		= "Atheros 8035 Gigabit Ethernet",
++	.ops		= &ar8035_phy_ops,
++};
++
+ static struct mii_phy_def *mii_phy_table[] = {
+ 	&et1011c_phy_def,
+ 	&cis8201_phy_def,
+ 	&bcm5248_phy_def,
+ 	&m88e1111_phy_def,
+ 	&m88e1112_phy_def,
++	&ar8035_phy_def,
+ 	&genmii_phy_def,
+ 	NULL
+ };
+-- 
+2.8.1
+
diff --git a/target/linux/apm821xx/patches-4.4/200-add-meraki-mr24-ikarem-support.patch b/target/linux/apm821xx/patches-4.4/200-add-meraki-mr24-ikarem-support.patch
new file mode 100644
index 0000000000..45892f272f
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/200-add-meraki-mr24-ikarem-support.patch
@@ -0,0 +1,31 @@
+--- a/arch/powerpc/platforms/44x/Kconfig
++++ b/arch/powerpc/platforms/44x/Kconfig
+@@ -40,6 +40,19 @@ config EBONY
+ 	help
+ 	  This option enables support for the IBM PPC440GP evaluation board.
+
++config IKAREM
++	bool "Ikarem"
++	depends on 44x
++	default n
++	select PPC44x_SIMPLE
++	select APM821xx
++	select PCI_MSI
++	select PPC4xx_MSI
++	select PPC4xx_PCI_EXPRESS
++	select IBM_EMAC_RGMII
++	help
++	  This option enables support for the Cisco Meraki MR24 (Ikarem) Access Point.
++
+ config SAM440EP
+         bool "Sam440ep"
+ 	depends on 44x
+--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
++++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
+@@ -62,6 +62,7 @@ static char *board[] __initdata = {
+ 	"amcc,sequoia",
+ 	"amcc,taishan",
+ 	"amcc,yosemite",
++	"meraki,ikarem",
+ 	"mosaixtech,icon"
+ };