ar71xx: improve support for TP-Link CPE510 v2

This fixes commit bae927c551fd ("ar71xx: add support for TP-LINK CPE510
V2.0") where the support for this device wasn't optimal.

Device support for the CPE510v2 so far has been a hack to enable
flashing with CPE510v1 images. Those even have different hardware (e.g.
additional ethernet port).

With this patch, we provide proper support for this device in ar71xx.

Installation:
- Flash factory image through stock firmware WEB UI or through TFTP
- To get to TFTP recovery just hold reset button while powering on
  for around 4-5 seconds and release.
- Rename factory image to recovery.bin
- Stock TFTP server IP: 192.168.0.100
- Stock device TFTP address: 192.168.0.254

Fixes: bae927c551fd ("ar71xx: add support for TP-LINK CPE510 V2.0")
Signed-off-by: Andrew Cameron <apcameron@softhome.net>
[Rebased onto revert commit, changed comments in mach-cpe510.c,
changed commit title and description, fixed eth0 MAC address,
removed eth1 initialization]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[squashed revert, added fixes tag]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
(cherry picked from commit c79b796280fa5cd64bac663f9d5e5d9a737c30d6)
[added CPE510V2 entry to tplink-safeloader.c]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

2 files changed, 33 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
index 16efbc8802..49d9cf9bb5 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
@@ -230,6 +230,35 @@ static void __init cpe210_v2_setup(void)
 	ath79_register_wmac(ee, mac);
 }
 
+static void __init cpe510_v2_setup(void)
+{
+	u8 *mac = (u8 *) KSEG1ADDR(0x1f830008);
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+	/* disable PHY_SWAP and PHY_ADDR_SWAP bits */
+	ath79_setup_ar933x_phy4_switch(false, false);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(cpe210_v2_leds_gpio),
+					cpe210_v2_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, CPE510_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(cpe510_gpio_keys),
+					cpe510_gpio_keys);
+
+	ath79_register_m25p80(NULL);
+	ath79_register_mdio(1, 0x0);
+
+	/* LAN port */
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_switch_data.phy_poll_mask = BIT(4);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(ee, mac);
+}
+
 MIPS_MACHINE(ATH79_MACH_CPE210, "CPE210", "TP-LINK CPE210/220",
 	     cpe210_setup);
 
@@ -242,6 +271,9 @@ MIPS_MACHINE(ATH79_MACH_CPE210_V3, "CPE210V3", "TP-LINK CPE210 v3",
 MIPS_MACHINE(ATH79_MACH_CPE510, "CPE510", "TP-LINK CPE510/520",
 	     cpe510_setup);
 
+MIPS_MACHINE(ATH79_MACH_CPE510_V2, "CPE510V2", "TP-LINK CPE510 v2",
+	     cpe510_v2_setup);
+
 MIPS_MACHINE(ATH79_MACH_WBS210, "WBS210", "TP-LINK WBS210",
 	     wbs_setup);
 
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 9722744a37..900b4ec87b 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -79,6 +79,7 @@ enum ath79_mach_type {
 	ATH79_MACH_CPE210_V3,			/* TP-LINK CPE210 v3 */
 	ATH79_MACH_CPE505N,			/* P&W CPE505N */
 	ATH79_MACH_CPE510,			/* TP-LINK CPE510 */
+	ATH79_MACH_CPE510_V2,			/* TP-LINK CPE510 v2 */
 	ATH79_MACH_CPE830,			/* YunCore CPE830 */
 	ATH79_MACH_CPE870,			/* YunCore CPE870 */
 	ATH79_MACH_CR3000,			/* PowerCloud Systems CR3000 */