libreCMC/package/boot/uboot-sunxi/patches/014-fix-gmac-init.patch

From fc8991c61c393ce6a9d3dfc97cb56dbbd9e8cbba Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 17 Mar 2016 13:53:03 +0100
Subject: [PATCH] sunxi: Fix gmac not working due to cpu_eth_init no longer
 being called

cpu_eth_init is no longer called for dm enabled eth drivers, this
was causing the sunxi gmac eth controller to no longer work in u-boot.

This commit fixes this by calling the clock, reset and pinmux setup
function from s_init() and enabling the phy power pin (if any) from
board_init().

The enabling of phy power cannot be done from s_init because it uses dm
and dm is not ready yet at this point.

Note that the mdelay is dropped as the phy gets enabled much earlier
now, so it is no longer needed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Tested-by: Karsten Merker <merker@debian.org>
Tested-by: Michael Haas <haas@computerlinguist.org>
---
 arch/arm/cpu/armv7/sunxi/board.c            | 28 +---------------------------
 arch/arm/include/asm/arch-sunxi/sys_proto.h |  6 +++++-
 board/sunxi/board.c                         |  5 +++++
 board/sunxi/gmac.c                          | 14 +-------------
 4 files changed, 12 insertions(+), 41 deletions(-)

--- a/arch/arm/cpu/armv7/sunxi/board.c
+++ b/arch/arm/cpu/armv7/sunxi/board.c
@@ -136,6 +136,7 @@ void s_init(void)
 	timer_init();
 	gpio_init();
 	i2c_init_board();
+	eth_init_board();
 }
 
 #ifdef CONFIG_SPL_BUILD
@@ -243,30 +244,3 @@ void enable_caches(void)
 	dcache_enable();
 }
 #endif
-
-#ifdef CONFIG_CMD_NET
-/*
- * Initializes on-chip ethernet controllers.
- * to override, implement board_eth_init()
- */
-int cpu_eth_init(bd_t *bis)
-{
-	__maybe_unused int rc;
-
-#ifdef CONFIG_MACPWR
-	gpio_request(CONFIG_MACPWR, "macpwr");
-	gpio_direction_output(CONFIG_MACPWR, 1);
-	mdelay(200);
-#endif
-
-#ifdef CONFIG_SUNXI_GMAC
-	rc = sunxi_gmac_initialize(bis);
-	if (rc < 0) {
-		printf("sunxi: failed to initialize gmac\n");
-		return rc;
-	}
-#endif
-
-	return 0;
-}
-#endif
--- a/arch/arm/include/asm/arch-sunxi/sys_proto.h
+++ b/arch/arm/include/asm/arch-sunxi/sys_proto.h
@@ -24,6 +24,10 @@ void sdelay(unsigned long);
 void return_to_fel(uint32_t lr, uint32_t sp);
 
 /* Board / SoC level designware gmac init */
-int sunxi_gmac_initialize(bd_t *bis);
+#if !defined CONFIG_SPL_BUILD && defined CONFIG_SUNXI_GMAC
+void eth_init_board(void);
+#else
+static inline void eth_init_board(void) {}
+#endif
 
 #endif
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -90,6 +90,11 @@ int board_init(void)
 	if (ret)
 		return ret;
 
+#ifdef CONFIG_MACPWR
+	gpio_request(CONFIG_MACPWR, "macpwr");
+	gpio_direction_output(CONFIG_MACPWR, 1);
+#endif
+
 	/* Uses dm gpio code so do this here and not in i2c_init_board() */
 	return soft_i2c_board_init();
 }
--- a/board/sunxi/gmac.c
+++ b/board/sunxi/gmac.c
@@ -6,7 +6,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/gpio.h>
 
-int sunxi_gmac_initialize(bd_t *bis)
+void eth_init_board(void)
 {
 	int pin;
 	struct sunxi_ccm_reg *const ccm =
@@ -79,16 +79,4 @@ int sunxi_gmac_initialize(bd_t *bis)
 	for (pin = SUNXI_GPA(26); pin <= SUNXI_GPA(27); pin++)
 		sunxi_gpio_set_cfgpin(pin, SUN6I_GPA_GMAC);
 #endif
-
-#ifdef CONFIG_DM_ETH
-	return 0;
-#else
-# ifdef CONFIG_RGMII
-	return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_RGMII);
-# elif defined CONFIG_GMII
-	return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_GMII);
-# else
-	return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_MII);
-# endif
-#endif
 }