brcm2708: add kernel 4.14 support

Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 86 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0093-amba_pl011-Round-input-clock-up.patch b/target/linux/brcm2708/patches-4.14/950-0093-amba_pl011-Round-input-clock-up.patch
new file mode 100644
index 0000000000..90afc6f871
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0093-amba_pl011-Round-input-clock-up.patch
@@ -0,0 +1,86 @@
+From d25a404a959a57804908c1d615b2ac85d7c4a18e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 1 Mar 2017 16:07:39 +0000
+Subject: [PATCH 093/454] amba_pl011: Round input clock up
+
+The UART clock is initialised to be as close to the requested
+frequency as possible without exceeding it. Now that there is a
+clock manager that returns the actual frequencies, an expected
+48MHz clock is reported as 47999625. If the requested baudrate
+== requested clock/16, there is no headroom and the slight
+reduction in actual clock rate results in failure.
+
+Detect cases where it looks like a "round" clock was chosen and
+adjust the reported clock to match that "round" value. As the
+code comment says:
+
+/*
+ * If increasing a clock by less than 0.1% changes it
+ * from ..999.. to ..000.., round up.
+ */
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 23 +++++++++++++++++++++--
+ 1 file changed, 21 insertions(+), 2 deletions(-)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1672,6 +1672,23 @@ static void pl011_put_poll_char(struct u
+ 
+ #endif /* CONFIG_CONSOLE_POLL */
+ 
++unsigned long pl011_clk_round(unsigned long clk)
++{
++	unsigned long scaler;
++
++	/*
++	 * If increasing a clock by less than 0.1% changes it
++	 * from ..999.. to ..000.., round up.
++	 */
++	scaler = 1;
++	while (scaler * 100000 < clk)
++		scaler *= 10;
++	if ((clk + scaler - 1)/scaler % 1000 == 0)
++		clk = (clk/scaler + 1) * scaler;
++
++	return clk;
++}
++
+ static int pl011_hwinit(struct uart_port *port)
+ {
+ 	struct uart_amba_port *uap =
+@@ -1688,7 +1705,7 @@ static int pl011_hwinit(struct uart_port
+ 	if (retval)
+ 		return retval;
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	/* Clear pending error and receive interrupts */
+ 	pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
+@@ -2344,7 +2361,7 @@ static int __init pl011_console_setup(st
+ 			plat->init();
+ 	}
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	if (uap->vendor->fixed_options) {
+ 		baud = uap->fixed_baud;
+@@ -2529,6 +2546,7 @@ static struct uart_driver amba_reg = {
+ 	.cons			= AMBA_CONSOLE,
+ };
+ 
++#if 0
+ static int pl011_probe_dt_alias(int index, struct device *dev)
+ {
+ 	struct device_node *np;
+@@ -2560,6 +2578,7 @@ static int pl011_probe_dt_alias(int inde
+ 
+ 	return ret;
+ }
++#endif
+ 
+ /* unregisters the driver also if no more ports are left */
+ static void pl011_unregister_port(struct uart_amba_port *uap)