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, 105 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch b/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch
new file mode 100644
index 0000000000..f9698c2501
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.9/001-4.15-07-MIPS-BCM63XX-split-out-swpkt_sar-usb-clocks.patch
@@ -0,0 +1,105 @@
+From b98027285bd1fa95da0645a4234a5fc1f1a83f92 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Sun, 26 Feb 2017 11:59:52 +0100
+Subject: [PATCH V2 8/8] MIPS: BCM63XX: split out swpkt_sar/usb clocks
+
+Make the secondary switch clocks their own clocks. This allows proper
+enable reference counting between SAR/XTM and the main switch clocks,
+and controlling them individually from drivers.
+
+Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
+---
+ arch/mips/bcm63xx/clk.c | 61 +++++++++++++++++++++++++++++++++++++++++--------
+ 1 file changed, 51 insertions(+), 10 deletions(-)
+
+--- a/arch/mips/bcm63xx/clk.c
++++ b/arch/mips/bcm63xx/clk.c
+@@ -121,21 +121,56 @@ static struct clk clk_ephy = {
+ };
+ 
+ /*
++ * Ethernet switch SAR clock
++ */
++static void swpkt_sar_set(struct clk *clk, int enable)
++{
++	if (BCMCPU_IS_6368())
++		bcm_hwclock_set(CKCTL_6368_SWPKT_SAR_EN, enable);
++	else
++		return;
++}
++
++static struct clk clk_swpkt_sar = {
++	.set	= swpkt_sar_set,
++};
++
++/*
++ * Ethernet switch USB clock
++ */
++static void swpkt_usb_set(struct clk *clk, int enable)
++{
++	if (BCMCPU_IS_6368())
++		bcm_hwclock_set(CKCTL_6368_SWPKT_USB_EN, enable);
++	else
++		return;
++}
++
++static struct clk clk_swpkt_usb = {
++	.set	= swpkt_usb_set,
++};
++
++/*
+  * Ethernet switch clock
+  */
+ static void enetsw_set(struct clk *clk, int enable)
+ {
+-	if (BCMCPU_IS_6328())
++	if (BCMCPU_IS_6328()) {
+ 		bcm_hwclock_set(CKCTL_6328_ROBOSW_EN, enable);
+-	else if (BCMCPU_IS_6362())
++	} else if (BCMCPU_IS_6362()) {
+ 		bcm_hwclock_set(CKCTL_6362_ROBOSW_EN, enable);
+-	else if (BCMCPU_IS_6368())
+-		bcm_hwclock_set(CKCTL_6368_ROBOSW_EN |
+-				CKCTL_6368_SWPKT_USB_EN |
+-				CKCTL_6368_SWPKT_SAR_EN,
+-				enable);
+-	else
++	} else if (BCMCPU_IS_6368()) {
++		if (enable) {
++			clk_enable_unlocked(&clk_swpkt_sar);
++			clk_enable_unlocked(&clk_swpkt_usb);
++		} else {
++			clk_disable_unlocked(&clk_swpkt_usb);
++			clk_disable_unlocked(&clk_swpkt_sar);
++		}
++		bcm_hwclock_set(CKCTL_6368_ROBOSW_EN, enable);
++	} else {
+ 		return;
++	}
+ 
+ 	if (enable) {
+ 		/* reset switch core afer clock change */
+@@ -260,8 +295,12 @@ static void xtm_set(struct clk *clk, int
+ 	if (!BCMCPU_IS_6368())
+ 		return;
+ 
+-	bcm_hwclock_set(CKCTL_6368_SAR_EN |
+-			CKCTL_6368_SWPKT_SAR_EN, enable);
++	if (enable)
++		clk_enable_unlocked(&clk_swpkt_sar);
++	else
++		clk_disable_unlocked(&clk_swpkt_sar);
++
++	bcm_hwclock_set(CKCTL_6368_SAR_EN, enable);
+ 
+ 	if (enable) {
+ 		/* reset sar core afer clock change */
+@@ -447,6 +486,8 @@ static struct clk_lookup bcm6358_clks[]
+ 	CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ 	CLKDEV_INIT(NULL, "spi", &clk_spi),
+ 	CLKDEV_INIT(NULL, "pcm", &clk_pcm),
++	CLKDEV_INIT(NULL, "swpkt_sar", &clk_swpkt_sar),
++	CLKDEV_INIT(NULL, "swpkt_usb", &clk_swpkt_usb),
+ 	CLKDEV_INIT("bcm63xx_enet.0", "enet", &clk_enet0),
+ 	CLKDEV_INIT("bcm63xx_enet.1", "enet", &clk_enet1),
+ };