add support for coldfire with gcc 4.9.2/binutils 2.25

The annoying kernel panic after boot is back :(

2 files changed, 142 insertions, 0 deletions

diff --git a/target/m68k/qemu-m68k/patches/3.19/m68k-coldfire-fec.patch b/target/m68k/qemu-m68k/patches/3.19/m68k-coldfire-fec.patch
new file mode 100644
index 000000000..ceaa21ce6
--- /dev/null
+++ b/target/m68k/qemu-m68k/patches/3.19/m68k-coldfire-fec.patch
@@ -0,0 +1,118 @@
+diff -Nur linux-3.18.2.orig/drivers/net/ethernet/freescale/fec_main.c linux-3.18.2/drivers/net/ethernet/freescale/fec_main.c
+--- linux-3.18.2.orig/drivers/net/ethernet/freescale/fec_main.c	2015-01-08 12:30:41.000000000 -0600
++++ linux-3.18.2/drivers/net/ethernet/freescale/fec_main.c	2015-01-11 20:34:04.690309863 -0600
+@@ -136,7 +136,7 @@
+ module_param_array(macaddr, byte, NULL, 0);
+ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
+ 
+-#if defined(CONFIG_M5272)
++#if defined(CONFIG_COLDFIRE)
+ /*
+  * Some hardware gets it MAC address out of local flash memory.
+  * if this is non-zero then assume it is the address to get MAC from.
+@@ -154,7 +154,7 @@
+ #else
+ #define	FEC_FLASHMAC	0
+ #endif
+-#endif /* CONFIG_M5272 */
++#endif /* CONFIG_COLDFIRE */
+ 
+ /* The FEC stores dest/src/type/vlan, data, and checksum for receive packets.
+  */
+@@ -978,7 +978,7 @@
+ 	/* Set MII speed */
+ 	writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
+ 
+-#if !defined(CONFIG_M5272)
++#if !defined(CONFIG_COLDFIRE)
+ 	/* set RX checksum */
+ 	val = readl(fep->hwp + FEC_RACC);
+ 	if (fep->csum_flags & FLAG_RX_CSUM_ENABLED)
+@@ -1039,7 +1039,7 @@
+ #endif
+ 	}
+ 
+-#if !defined(CONFIG_M5272)
++#if !defined(CONFIG_COLDFIRE)
+ 	/* enable pause frame*/
+ 	if ((fep->pause_flag & FEC_PAUSE_FLAG_ENABLE) ||
+ 	    ((fep->pause_flag & FEC_PAUSE_FLAG_AUTONEG) &&
+@@ -1057,13 +1057,13 @@
+ 	} else {
+ 		rcntl &= ~FEC_ENET_FCE;
+ 	}
+-#endif /* !defined(CONFIG_M5272) */
++#endif /* !defined(CONFIG_COLDFIRE) */
+ 
+ 	writel(rcntl, fep->hwp + FEC_R_CNTRL);
+ 
+ 	/* Setup multicast filter. */
+ 	set_multicast_list(ndev);
+-#ifndef CONFIG_M5272
++#ifndef CONFIG_COLDFIRE
+ 	writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
+ 	writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
+ #endif
+@@ -1078,7 +1078,7 @@
+ 	if (fep->bufdesc_ex)
+ 		ecntl |= (1 << 4);
+ 
+-#ifndef CONFIG_M5272
++#ifndef CONFIG_COLDFIRE
+ 	/* Enable the MIB statistic event counters */
+ 	writel(0 << 31, fep->hwp + FEC_MIB_CTRLSTAT);
+ #endif
+@@ -1656,7 +1656,7 @@
+ 	 * 3) from flash or fuse (via platform data)
+ 	 */
+ 	if (!is_valid_ether_addr(iap)) {
+-#ifdef CONFIG_M5272
++#ifdef CONFIG_COLDFIRE
+ 		if (FEC_FLASHMAC)
+ 			iap = (unsigned char *)FEC_FLASHMAC;
+ #else
+@@ -1930,7 +1930,7 @@
+ 	if (id_entry->driver_data & FEC_QUIRK_HAS_GBIT) {
+ 		phy_dev->supported &= PHY_GBIT_FEATURES;
+ 		phy_dev->supported &= ~SUPPORTED_1000baseT_Half;
+-#if !defined(CONFIG_M5272)
++#if !defined(CONFIG_COLDFIRE)
+ 		phy_dev->supported |= SUPPORTED_Pause;
+ #endif
+ 	}
+@@ -2125,7 +2125,7 @@
+ 	}
+ }
+ 
+-#if !defined(CONFIG_M5272)
++#if !defined(CONFIG_COLDFIRE)
+ 
+ static void fec_enet_get_pauseparam(struct net_device *ndev,
+ 				    struct ethtool_pauseparam *pause)
+@@ -2280,7 +2280,7 @@
+ 		return -EOPNOTSUPP;
+ 	}
+ }
+-#endif /* !defined(CONFIG_M5272) */
++#endif /* !defined(CONFIG_COLDFIRE) */
+ 
+ static int fec_enet_nway_reset(struct net_device *dev)
+ {
+@@ -2466,7 +2466,7 @@
+ 	.get_link		= ethtool_op_get_link,
+ 	.get_coalesce		= fec_enet_get_coalesce,
+ 	.set_coalesce		= fec_enet_set_coalesce,
+-#ifndef CONFIG_M5272
++#ifndef CONFIG_COLDFIRE
+ 	.get_pauseparam		= fec_enet_get_pauseparam,
+ 	.set_pauseparam		= fec_enet_set_pauseparam,
+ 	.get_strings		= fec_enet_get_strings,
+@@ -3164,7 +3164,7 @@
+ 	fep->num_rx_queues = num_rx_qs;
+ 	fep->num_tx_queues = num_tx_qs;
+ 
+-#if !defined(CONFIG_M5272)
++#if !defined(CONFIG_COLDFIRE)
+ 	/* default enable pause frame auto negotiation */
+ 	if (pdev->id_entry &&
+ 	    (pdev->id_entry->driver_data & FEC_QUIRK_HAS_GBIT))
diff --git a/target/m68k/qemu-m68k/patches/3.19/qemu-coldfire.patch b/target/m68k/qemu-m68k/patches/3.19/qemu-coldfire.patch
new file mode 100644
index 000000000..14d2f610b
--- /dev/null
+++ b/target/m68k/qemu-m68k/patches/3.19/qemu-coldfire.patch
@@ -0,0 +1,24 @@
+m68k: enabled software emulation of separate supervisor/user stack
+
+Recent Coldfires have separate supervisor and user stack pointers, but
+since older Coldfires didn't have that, the Linux kernel has a kind of
+emulation mechanism for those pointers.
+
+Apparently, according to the Kconfig.cpu file, the 5208 is supposed to
+support such separate pointers, but Qemu doesn't implement it. So we
+cheat a bit here and force the usage of emulated separate stack
+pointers.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
+
+diff -Nur linux-3.17.7.orig/arch/m68k/Kconfig.cpu linux-3.17.7/arch/m68k/Kconfig.cpu
+--- linux-3.17.7.orig/arch/m68k/Kconfig.cpu	2014-12-16 11:37:26.000000000 -0600
++++ linux-3.17.7/arch/m68k/Kconfig.cpu	2014-12-27 14:12:19.291459730 -0600
+@@ -146,6 +146,7 @@
+ 	depends on !MMU
+ 	select GENERIC_CLOCKEVENTS
+ 	select HAVE_CACHE_SPLIT
++	select COLDFIRE_SW_A7
+ 	help
+ 	   Freescale Coldfire 5207/5208 processor support.
+