ar71xx: Add kernel 4.9 support

This add support for kernel 4.9 to the ar71xx target.
It was compile tested with the generic, NAND and mikrotik subtarget.
Multiple members of the community tested it on their boards and did not
report any major problem so far.

Especially the NAND part received some changes to adapt to the new
kernel APIs. The serial driver hack used for the Arduino Yun was not
ported because the kernel changed there a lot.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 300 insertions, 0 deletions

diff --git a/target/linux/ar71xx/patches-4.9/609-MIPS-ath79-ap136-fixes.patch b/target/linux/ar71xx/patches-4.9/609-MIPS-ath79-ap136-fixes.patch
new file mode 100644
index 0000000000..4d7902e166
--- /dev/null
+++ b/target/linux/ar71xx/patches-4.9/609-MIPS-ath79-ap136-fixes.patch
@@ -0,0 +1,300 @@
+--- a/arch/mips/ath79/mach-ap136.c
++++ b/arch/mips/ath79/mach-ap136.c
+@@ -18,23 +18,29 @@
+  *
+  */
+ 
+-#include <linux/pci.h>
+-#include <linux/ath9k_platform.h>
++#include <linux/platform_device.h>
++#include <linux/ar8216_platform.h>
+ 
+-#include "machtypes.h"
++#include <asm/mach-ath79/ar71xx_regs.h>
++
++#include "common.h"
++#include "pci.h"
++#include "dev-ap9x-pci.h"
+ #include "dev-gpio-buttons.h"
++#include "dev-eth.h"
+ #include "dev-leds-gpio.h"
+-#include "dev-spi.h"
++#include "dev-m25p80.h"
++#include "dev-nfc.h"
+ #include "dev-usb.h"
+ #include "dev-wmac.h"
+-#include "pci.h"
++#include "machtypes.h"
+ 
+-#define AP136_GPIO_LED_STATUS_RED	14
+-#define AP136_GPIO_LED_STATUS_GREEN	19
+ #define AP136_GPIO_LED_USB		4
+-#define AP136_GPIO_LED_WLAN_2G		13
+ #define AP136_GPIO_LED_WLAN_5G		12
++#define AP136_GPIO_LED_WLAN_2G		13
++#define AP136_GPIO_LED_STATUS_RED	14
+ #define AP136_GPIO_LED_WPS_RED		15
++#define AP136_GPIO_LED_STATUS_GREEN	19
+ #define AP136_GPIO_LED_WPS_GREEN	20
+ 
+ #define AP136_GPIO_BTN_WPS		16
+@@ -43,37 +49,39 @@
+ #define AP136_KEYS_POLL_INTERVAL	20	/* msecs */
+ #define AP136_KEYS_DEBOUNCE_INTERVAL	(3 * AP136_KEYS_POLL_INTERVAL)
+ 
+-#define AP136_WMAC_CALDATA_OFFSET 0x1000
+-#define AP136_PCIE_CALDATA_OFFSET 0x5000
++#define AP136_MAC0_OFFSET		0
++#define AP136_MAC1_OFFSET		6
++#define AP136_WMAC_CALDATA_OFFSET	0x1000
++#define AP136_PCIE_CALDATA_OFFSET	0x5000
+ 
+ static struct gpio_led ap136_leds_gpio[] __initdata = {
+ 	{
+-		.name		= "qca:green:status",
++		.name		= "ap136:green:status",
+ 		.gpio		= AP136_GPIO_LED_STATUS_GREEN,
+ 		.active_low	= 1,
+ 	},
+ 	{
+-		.name		= "qca:red:status",
++		.name		= "ap136:red:status",
+ 		.gpio		= AP136_GPIO_LED_STATUS_RED,
+ 		.active_low	= 1,
+ 	},
+ 	{
+-		.name		= "qca:green:wps",
++		.name		= "ap136:green:wps",
+ 		.gpio		= AP136_GPIO_LED_WPS_GREEN,
+ 		.active_low	= 1,
+ 	},
+ 	{
+-		.name		= "qca:red:wps",
++		.name		= "ap136:red:wps",
+ 		.gpio		= AP136_GPIO_LED_WPS_RED,
+ 		.active_low	= 1,
+ 	},
+ 	{
+-		.name		= "qca:red:wlan-2g",
++		.name		= "ap136:red:wlan-2g",
+ 		.gpio		= AP136_GPIO_LED_WLAN_2G,
+ 		.active_low	= 1,
+ 	},
+ 	{
+-		.name		= "qca:red:usb",
++		.name		= "ap136:red:usb",
+ 		.gpio		= AP136_GPIO_LED_USB,
+ 		.active_low	= 1,
+ 	}
+@@ -98,59 +106,151 @@ static struct gpio_keys_button ap136_gpi
+ 	},
+ };
+ 
+-static struct spi_board_info ap136_spi_info[] = {
+-	{
+-		.bus_num	= 0,
+-		.chip_select	= 0,
+-		.max_speed_hz	= 25000000,
+-		.modalias	= "mx25l6405d",
+-	}
++static struct ar8327_pad_cfg ap136_ar8327_pad0_cfg;
++static struct ar8327_pad_cfg ap136_ar8327_pad6_cfg;
++
++static struct ar8327_platform_data ap136_ar8327_data = {
++	.pad0_cfg = &ap136_ar8327_pad0_cfg,
++	.pad6_cfg = &ap136_ar8327_pad6_cfg,
++	.port0_cfg = {
++		.force_link = 1,
++		.speed = AR8327_PORT_SPEED_1000,
++		.duplex = 1,
++		.txpause = 1,
++		.rxpause = 1,
++	},
++	.port6_cfg = {
++		.force_link = 1,
++		.speed = AR8327_PORT_SPEED_1000,
++		.duplex = 1,
++		.txpause = 1,
++		.rxpause = 1,
++	},
+ };
+ 
+-static struct ath79_spi_platform_data ap136_spi_data = {
+-	.bus_num	= 0,
+-	.num_chipselect	= 1,
++static struct mdio_board_info ap136_mdio0_info[] = {
++	{
++		.bus_id = "ag71xx-mdio.0",
++		.phy_addr = 0,
++		.platform_data = &ap136_ar8327_data,
++	},
+ };
+ 
+-#ifdef CONFIG_PCI
+-static struct ath9k_platform_data ap136_ath9k_data;
++static void __init ap136_common_setup(void)
++{
++	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
++
++	ath79_register_m25p80(NULL);
++
++	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap136_leds_gpio),
++				 ap136_leds_gpio);
++	ath79_register_gpio_keys_polled(-1, AP136_KEYS_POLL_INTERVAL,
++					ARRAY_SIZE(ap136_gpio_keys),
++					ap136_gpio_keys);
++
++	ath79_register_usb();
++	ath79_register_nfc();
++
++	ath79_register_wmac(art + AP136_WMAC_CALDATA_OFFSET, NULL);
++
++	ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
+ 
+-static int ap136_pci_plat_dev_init(struct pci_dev *dev)
++	ath79_register_mdio(0, 0x0);
++	ath79_init_mac(ath79_eth0_data.mac_addr, art + AP136_MAC0_OFFSET, 0);
++
++	mdiobus_register_board_info(ap136_mdio0_info,
++				    ARRAY_SIZE(ap136_mdio0_info));
++
++	/* GMAC0 is connected to the RMGII interface */
++	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
++	ath79_eth0_data.phy_mask = BIT(0);
++	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
++
++	ath79_register_eth(0);
++
++	/* GMAC1 is connected tot eh SGMII interface */
++	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
++	ath79_eth1_data.speed = SPEED_1000;
++	ath79_eth1_data.duplex = DUPLEX_FULL;
++
++	ath79_register_eth(1);
++}
++
++static void __init ap136_010_setup(void)
+ {
+-	if (dev->bus->number == 1 && (PCI_SLOT(dev->devfn)) == 0)
+-		dev->dev.platform_data = &ap136_ath9k_data;
++	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+ 
+-	return 0;
++	/* GMAC0 of the AR8327 switch is connected to GMAC0 via RGMII */
++	ap136_ar8327_pad0_cfg.mode = AR8327_PAD_MAC_RGMII;
++	ap136_ar8327_pad0_cfg.txclk_delay_en = true;
++	ap136_ar8327_pad0_cfg.rxclk_delay_en = true;
++	ap136_ar8327_pad0_cfg.txclk_delay_sel = AR8327_CLK_DELAY_SEL1;
++	ap136_ar8327_pad0_cfg.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2;
++
++	/* GMAC6 of the AR8327 switch is connected to GMAC1 via SGMII */
++	ap136_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
++	ap136_ar8327_pad6_cfg.rxclk_delay_en = true;
++	ap136_ar8327_pad6_cfg.rxclk_delay_sel = AR8327_CLK_DELAY_SEL0;
++
++	ath79_eth0_pll_data.pll_1000 = 0xa6000000;
++	ath79_eth1_pll_data.pll_1000 = 0x03000101;
++
++	ap136_common_setup();
++	ap91_pci_init(art + AP136_PCIE_CALDATA_OFFSET, NULL);
+ }
+ 
+-static void __init ap136_pci_init(u8 *eeprom)
++MIPS_MACHINE(ATH79_MACH_AP136_010, "AP136-010",
++	     "Atheros AP136-010 reference board",
++	     ap136_010_setup);
++
++static void __init ap136_020_common_setup(void)
+ {
+-	memcpy(ap136_ath9k_data.eeprom_data, eeprom,
+-	       sizeof(ap136_ath9k_data.eeprom_data));
++	/* GMAC0 of the AR8327 switch is connected to GMAC1 via SGMII */
++	ap136_ar8327_pad0_cfg.mode = AR8327_PAD_MAC_SGMII;
++	ap136_ar8327_pad0_cfg.sgmii_delay_en = true;
++
++	/* GMAC6 of the AR8327 switch is connected to GMAC0 via RGMII */
++	ap136_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_RGMII;
++	ap136_ar8327_pad6_cfg.txclk_delay_en = true;
++	ap136_ar8327_pad6_cfg.rxclk_delay_en = true;
++	ap136_ar8327_pad6_cfg.txclk_delay_sel = AR8327_CLK_DELAY_SEL1;
++	ap136_ar8327_pad6_cfg.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2;
+ 
+-	ath79_pci_set_plat_dev_init(ap136_pci_plat_dev_init);
+-	ath79_register_pci();
++	ath79_eth0_pll_data.pll_1000 = 0x56000000;
++	ath79_eth1_pll_data.pll_1000 = 0x03000101;
++
++	ap136_common_setup();
+ }
+-#else
+-static inline void ap136_pci_init(u8 *eeprom) {}
+-#endif /* CONFIG_PCI */
+ 
+-static void __init ap136_setup(void)
++static void __init ap136_020_setup(void)
+ {
+ 	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+ 
+-	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap136_leds_gpio),
+-				 ap136_leds_gpio);
+-	ath79_register_gpio_keys_polled(-1, AP136_KEYS_POLL_INTERVAL,
+-					ARRAY_SIZE(ap136_gpio_keys),
+-					ap136_gpio_keys);
+-	ath79_register_spi(&ap136_spi_data, ap136_spi_info,
+-			   ARRAY_SIZE(ap136_spi_info));
+-	ath79_register_usb();
+-	ath79_register_wmac(art + AP136_WMAC_CALDATA_OFFSET);
+-	ap136_pci_init(art + AP136_PCIE_CALDATA_OFFSET);
++	ap136_020_common_setup();
++	ap91_pci_init(art + AP136_PCIE_CALDATA_OFFSET, NULL);
+ }
+ 
+-MIPS_MACHINE(ATH79_MACH_AP136_010, "AP136-010",
+-	     "Atheros AP136-010 reference board",
+-	     ap136_setup);
++MIPS_MACHINE(ATH79_MACH_AP136_020, "AP136-020",
++	     "Atheros AP136-020 reference board",
++	     ap136_020_setup);
++
++/*
++ * AP135-020 is similar to AP136-020, any future AP135 specific init
++ * code can be added here.
++ */
++static void __init ap135_020_setup(void)
++{
++	ap136_leds_gpio[0].name = "ap135:green:status";
++	ap136_leds_gpio[1].name = "ap135:red:status";
++	ap136_leds_gpio[2].name = "ap135:green:wps";
++	ap136_leds_gpio[3].name = "ap135:red:wps";
++	ap136_leds_gpio[4].name = "ap135:red:wlan-2g";
++	ap136_leds_gpio[5].name = "ap135:red:usb";
++
++	ap136_020_common_setup();
++	ath79_register_pci();
++}
++
++MIPS_MACHINE(ATH79_MACH_AP135_020, "AP135-020",
++	     "Atheros AP135-020 reference board",
++	     ap135_020_setup);
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -16,16 +16,17 @@ config ATH79_MACH_AP121
+ 	  Atheros AP121 reference board.
+ 
+ config ATH79_MACH_AP136
+-	bool "Atheros AP136 reference board"
++	bool "Atheros AP136/AP135 reference board"
+ 	select SOC_QCA955X
+ 	select ATH79_DEV_GPIO_BUTTONS
+ 	select ATH79_DEV_LEDS_GPIO
++	select ATH79_DEV_NFC
+ 	select ATH79_DEV_SPI
+ 	select ATH79_DEV_USB
+ 	select ATH79_DEV_WMAC
+ 	help
+ 	  Say 'Y' here if you want your kernel to support the
+-	  Atheros AP136 reference board.
++	  Atheros AP136 or AP135 reference boards.
+ 
+ config ATH79_MACH_AP81
+ 	bool "Atheros AP81 reference board"