ar71xx: add support for 8devices Lima board

Lima is a module for the (IoE) internet of everything applications,
based on Qualcomm/Atheros QCA4531.

Specification:

- 650/600/216 MHz (CPU/DDR/AHB)
- 64 MB of RAM (DDR2)
- 32 MB of FLASH
- 2T2R 2.4 GHz
- 2x 10/100 Mbps Ethernet
- USB 2.0 Host
- PCIe
- UART for serial console
- 14x GPIO

Flash instruction:
1. Download lede-ar71xx-generic-lima-squashfs-sysupgrade.bin
and rename it to 8dev_recovery.bin
2. Binary file copy to USB stick and plug into slot USB
3. Press S2 (reset) button
4. Press and hold the S1 button by 5 seconds
5. Wait ~40 seconds to complete recovery

Tested on:

- Lima development kit

Signed-off-by: Karol Dudek <karoiz@sli.pl>

4 files changed, 101 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 4c00ea5a95..44f754c2bc 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1822,6 +1822,17 @@ config ATH79_MACH_CARAMBOLA2
 	select ATH79_DEV_USB
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_LIMA
+	bool "8devices Lima board"
+	select SOC_QCA953X
+	select ATH79_DEV_AP9X_PCI if PCI
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_M25P80
+	select ATH79_DEV_SPI
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+	select ATH79_DEV_ETH
+
 config ATH79_MACH_CF_E316N_V2
 	bool "COMFAST CF-E316N v2 support"
 	select SOC_AR934X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index e0748b1237..f402463dfc 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -120,6 +120,7 @@ obj-$(CONFIG_ATH79_MACH_HORNET_UB)		+= mach-hornet-ub.o
 obj-$(CONFIG_ATH79_MACH_JA76PF)			+= mach-ja76pf.o
 obj-$(CONFIG_ATH79_MACH_JWAP003)		+= mach-jwap003.o
 obj-$(CONFIG_ATH79_MACH_JWAP230)		+= mach-jwap230.o
+obj-$(CONFIG_ATH79_MACH_LIMA)			+= mach-lima.o
 obj-$(CONFIG_ATH79_MACH_MC_MAC1200R)		+= mach-mc-mac1200r.o
 obj-$(CONFIG_ATH79_MACH_MR12)			+= mach-mr12.o
 obj-$(CONFIG_ATH79_MACH_MR16)			+= mach-mr16.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-lima.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-lima.c
new file mode 100644
index 0000000000..9c784f7921
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-lima.c
@@ -0,0 +1,88 @@
+/*
+ *  8devices Lima board support
+ *
+ *  Copyright (C) 2016 Mantas Pucka <mantas@8devices.com>
+ *  Copyright (C) 2017 Karol Dudek <karoiz@sli.pl>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+
+#include "common.h"
+#include "dev-ap9x-pci.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+#include "pci.h"
+
+#define LIMA_GPIO_BTN_1_DEFAULT		16
+#define LIMA_KEYS_POLL_INTERVAL		20	/* msecs */
+#define LIMA_KEYS_DEBOUNCE_INTERVAL	(3 * LIMA_KEYS_POLL_INTERVAL)
+
+#define LIMA_ETH_PHYS		(BIT(0) | BIT(1))
+
+#define LIMA_MAC0_OFFSET	0x0000
+#define LIMA_MAC1_OFFSET	0x0006
+
+#define LIMA_CALDATA_OFFSET	0x1000
+#define LIMA_WMAC_MAC_OFFSET	0x0800
+
+static struct gpio_keys_button lima_gpio_keys[] __initdata = {
+	{
+		.desc		= "button1",
+		.type		= EV_KEY,
+		.code		= BTN_1,
+		.debounce_interval = LIMA_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= LIMA_GPIO_BTN_1_DEFAULT,
+		.active_low	= 1,
+	}
+};
+
+static void __init lima_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1f080000);
+
+	ath79_register_m25p80(NULL);
+
+	ath79_register_gpio_keys_polled(-1, LIMA_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(lima_gpio_keys),
+					lima_gpio_keys);
+
+	ath79_setup_ar933x_phy4_switch(true, true);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, art + LIMA_MAC0_OFFSET, 0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, art + LIMA_MAC1_OFFSET, 0);
+
+	ath79_register_mdio(0, ~LIMA_ETH_PHYS);
+
+	ath79_switch_data.phy4_mii_en = 1;
+
+	ath79_switch_data.phy_poll_mask |= BIT(0);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_eth1_data.phy_mask = BIT(1);
+	ath79_register_eth(1);
+
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_eth0_data.phy_mask = BIT(0);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(art + LIMA_CALDATA_OFFSET,
+			art + LIMA_WMAC_MAC_OFFSET);
+	ath79_register_usb();
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_LIMA, "LIMA", "8devices Lima board", lima_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 69c848ef3d..39a80fc6fb 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -113,6 +113,7 @@ enum ath79_mach_type {
 	ATH79_MACH_JA76PF2,			/* jjPlus JA76PF2 */
 	ATH79_MACH_JWAP003,			/* jjPlus JWAP003 */
 	ATH79_MACH_JWAP230,			/* jjPlus JWAP230 */
+	ATH79_MACH_LIMA,			/* 8devices Lima */
 	ATH79_MACH_MC_MAC1200R,			/* MERCURY MAC1200R */
 	ATH79_MACH_MR12,			/* Cisco Meraki MR12 */
 	ATH79_MACH_MR16,			/* Cisco Meraki MR16 */