uboot-mediatek: update to 2021.04-rc3 with MediaTek's patches

MediaTek published their current U-Boot patchset on github:
https://github.com/mtk-openwrt/u-boot/commits/mtksoc

Import the platform patches from there (`00-mtk-*.patch`), arrange,
them nicely, drop no longer needed local patches and rebase on top of
U-Boot 2021.04-rc3.

Tested and works well on Linksys E8450 (snand-1ddr) as well as
Bananapi BPi-R64 (sdmmc-2ddr, emmc-2ddr).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/package/boot/uboot-mediatek/patches/000-mtk-06-pinctrl-mt7629-add-jtag-function-and-pin-group.patch b/package/boot/uboot-mediatek/patches/000-mtk-06-pinctrl-mt7629-add-jtag-function-and-pin-group.patch
new file mode 100644
index 0000000000..f4cc1eb69d
--- /dev/null
+++ b/package/boot/uboot-mediatek/patches/000-mtk-06-pinctrl-mt7629-add-jtag-function-and-pin-group.patch
@@ -0,0 +1,50 @@
+From 1c6d07abf7fc79bf3950dc9ac56e3b566c334d3d Mon Sep 17 00:00:00 2001
+From: Weijie Gao <weijie.gao@mediatek.com>
+Date: Wed, 13 Jan 2021 16:29:23 +0800
+Subject: [PATCH 06/21] pinctrl: mt7629: add jtag function and pin group
+
+The EPHY LEDs of mt7629 can be used as JTAG. This patch adds the jtag pin
+group to the pinctrl driver.
+
+Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
+---
+ drivers/pinctrl/mediatek/pinctrl-mt7629.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/pinctrl/mediatek/pinctrl-mt7629.c
++++ b/drivers/pinctrl/mediatek/pinctrl-mt7629.c
+@@ -201,6 +201,10 @@ static int mt7629_wf2g_led_funcs[] = { 1
+ static int mt7629_wf5g_led_pins[] = { 18, };
+ static int mt7629_wf5g_led_funcs[] = { 1, };
+ 
++/* LED for EPHY used as JTAG */
++static int mt7629_ephy_leds_jtag_pins[] = { 12, 13, 14, 15, 16, };
++static int mt7629_ephy_leds_jtag_funcs[] = { 7, 7, 7, 7, 7, };
++
+ /* Watchdog */
+ static int mt7629_watchdog_pins[] = { 11, };
+ static int mt7629_watchdog_funcs[] = { 1, };
+@@ -297,6 +301,7 @@ static const struct mtk_group_desc mt762
+ 	PINCTRL_PIN_GROUP("ephy_led2", mt7629_ephy_led2),
+ 	PINCTRL_PIN_GROUP("ephy_led3", mt7629_ephy_led3),
+ 	PINCTRL_PIN_GROUP("ephy_led4", mt7629_ephy_led4),
++	PINCTRL_PIN_GROUP("ephy_leds_jtag", mt7629_ephy_leds_jtag),
+ 	PINCTRL_PIN_GROUP("wf2g_led", mt7629_wf2g_led),
+ 	PINCTRL_PIN_GROUP("wf5g_led", mt7629_wf5g_led),
+ 	PINCTRL_PIN_GROUP("watchdog", mt7629_watchdog),
+@@ -364,6 +369,7 @@ static const char *const mt7629_uart_gro
+ static const char *const mt7629_wdt_groups[] = { "watchdog", };
+ static const char *const mt7629_wifi_groups[] = { "wf0_5g", "wf0_2g", };
+ static const char *const mt7629_flash_groups[] = { "snfi", "spi_nor" };
++static const char *const mt7629_jtag_groups[] = { "ephy_leds_jtag" };
+ 
+ static const struct mtk_function_desc mt7629_functions[] = {
+ 	{"eth",	mt7629_ethernet_groups, ARRAY_SIZE(mt7629_ethernet_groups)},
+@@ -376,6 +382,7 @@ static const struct mtk_function_desc mt
+ 	{"watchdog", mt7629_wdt_groups, ARRAY_SIZE(mt7629_wdt_groups)},
+ 	{"wifi", mt7629_wifi_groups, ARRAY_SIZE(mt7629_wifi_groups)},
+ 	{"flash", mt7629_flash_groups, ARRAY_SIZE(mt7629_flash_groups)},
++	{"jtag", mt7629_jtag_groups, ARRAY_SIZE(mt7629_jtag_groups)},
+ };
+ 
+ static struct mtk_pinctrl_soc mt7629_data = {