brcm63xx: add linux 4.19 support

Boot tested on Comtrend AR-5387un:
https://gist.github.com/Noltari/57e5030455da8dc38e61f8c3a5922254

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
[jonas.gorski: make 4.19 an optional testing version; add gcc 8.3 fix]
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-4.19/389-MIPS-BCM63XX-add-clkdev-lookups-for-device-tree.patch b/target/linux/brcm63xx/patches-4.19/389-MIPS-BCM63XX-add-clkdev-lookups-for-device-tree.patch
new file mode 100644
index 0000000000..fe4dbe3e13
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.19/389-MIPS-BCM63XX-add-clkdev-lookups-for-device-tree.patch
@@ -0,0 +1,105 @@
+From cad8f63047c0691e8185d3c9c6a2705b83310c9c Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jonas.gorski@gmail.com>
+Date: Mon, 31 Jul 2017 20:10:36 +0200
+Subject: [PATCH] MIPS: BCM63XX: add clkdev lookups for device tree
+
+---
+ arch/mips/bcm63xx/clk.c | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+--- a/arch/mips/bcm63xx/clk.c
++++ b/arch/mips/bcm63xx/clk.c
+@@ -489,6 +489,8 @@ static struct clk_lookup bcm3368_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("fff8c100.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("fff8c120.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ 	CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+@@ -505,7 +507,9 @@ static struct clk_lookup bcm6318_clks[]
+ 	/* fixed rate clocks */
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
++	CLKDEV_INIT("10000100.serial", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx-hsspi.0", "pll", &clk_hsspi_pll),
++	CLKDEV_INIT("10003000.spi", "pll", &clk_hsspi_pll),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ 	CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+@@ -519,7 +523,10 @@ static struct clk_lookup bcm6328_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("10000100.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("10000120.serial", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx-hsspi.0", "pll", &clk_hsspi_pll),
++	CLKDEV_INIT("10001000.spi", "pll", &clk_hsspi_pll),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ 	CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+@@ -532,6 +539,7 @@ static struct clk_lookup bcm6338_clks[]
+ 	/* fixed rate clocks */
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
++	CLKDEV_INIT("fffe0300.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ 	CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+@@ -546,6 +554,7 @@ static struct clk_lookup bcm6345_clks[]
+ 	/* fixed rate clocks */
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
++	CLKDEV_INIT("fffe0300.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ 	CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+@@ -560,6 +569,7 @@ static struct clk_lookup bcm6348_clks[]
+ 	/* fixed rate clocks */
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
++	CLKDEV_INIT("fffe0300.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ 	CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+@@ -576,6 +586,8 @@ static struct clk_lookup bcm6358_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("fffe0100.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("fffe0120.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ 	CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+@@ -595,7 +607,10 @@ static struct clk_lookup bcm6362_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("10000100.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("10000120.serial", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx-hsspi.0", "pll", &clk_hsspi_pll),
++	CLKDEV_INIT("10001000.spi", "pll", &clk_hsspi_pll),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ 	CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+@@ -611,6 +626,8 @@ static struct clk_lookup bcm6368_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("10000100.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("10000120.serial", "refclk", &clk_periph),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ 	CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+@@ -625,7 +642,10 @@ static struct clk_lookup bcm63268_clks[]
+ 	CLKDEV_INIT(NULL, "periph", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.0", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx_uart.1", "refclk", &clk_periph),
++	CLKDEV_INIT("10000180.serial", "refclk", &clk_periph),
++	CLKDEV_INIT("100001a0.serial", "refclk", &clk_periph),
+ 	CLKDEV_INIT("bcm63xx-hsspi.0", "pll", &clk_hsspi_pll),
++	CLKDEV_INIT("10001000.spi", "pll", &clk_hsspi_pll),
+ 	/* gated clocks */
+ 	CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ 	CLKDEV_INIT(NULL, "usbh", &clk_usbh),