octeon: backport a few upstream fixes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41568 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 319 insertions, 0 deletions

diff --git a/target/linux/octeon/patches-3.10/0008-MIPS-cavium-octeon-fix-out-of-bounds-array-access.patch b/target/linux/octeon/patches-3.10/0008-MIPS-cavium-octeon-fix-out-of-bounds-array-access.patch
new file mode 100644
index 0000000000..78194bf261
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/0008-MIPS-cavium-octeon-fix-out-of-bounds-array-access.patch
@@ -0,0 +1,28 @@
+From 8b75e77048a378339ada86eff548a5b253212859 Mon Sep 17 00:00:00 2001
+From: Aaro Koskinen <aaro.koskinen@nsn.com>
+Date: Fri, 1 Nov 2013 17:06:03 +0200
+Subject: [PATCH] MIPS: cavium-octeon: fix out-of-bounds array access
+
+When booting with in-kernel DTBs, the pruning code will enumerate
+interfaces 0-4. However, there is memory reserved only for 4 so some
+other data will get overwritten by cvmx_helper_interface_enumerate().
+
+Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
+Acked-by: David Daney <david.daney@cavium.com>
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/6102/
+---
+ arch/mips/cavium-octeon/executive/cvmx-helper.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c
++++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c
+@@ -67,7 +67,7 @@ void (*cvmx_override_pko_queue_priority)
+ void (*cvmx_override_ipd_port_setup) (int ipd_port);
+ 
+ /* Port count per interface */
+-static int interface_port_count[4] = { 0, 0, 0, 0 };
++static int interface_port_count[5];
+ 
+ /* Port last configured link info index by IPD/PKO port */
+ static cvmx_helper_link_info_t
diff --git a/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch b/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch
new file mode 100644
index 0000000000..6cbbe348a0
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/0009-MIPS-cavium-octeon-fix-early-boot-hang-on-EBH5600-bo.patch
@@ -0,0 +1,42 @@
+From b2e4f1560f7388f8157dd2c828211abbfad0e806 Mon Sep 17 00:00:00 2001
+From: Aaro Koskinen <aaro.koskinen@nsn.com>
+Date: Fri, 1 Nov 2013 17:06:04 +0200
+Subject: [PATCH] MIPS: cavium-octeon: fix early boot hang on EBH5600 board
+
+The boot hangs early on EBH5600 board when octeon_fdt_pip_iface() is
+trying enumerate a non-existant interface. The actual hang happens in
+cvmx_helper_interface_get_mode():
+
+	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
+
+when interface == 4. We can avoid this situation by first checking that
+the interface exists in the DTB.
+
+Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
+Acked-by: David Daney <david.daney@cavium.com>
+Signed-off-by: John Crispin <blogic@openwrt.org>
+Patchwork: http://patchwork.linux-mips.org/patch/6101/
+---
+ arch/mips/cavium-octeon/octeon-platform.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/arch/mips/cavium-octeon/octeon-platform.c
++++ b/arch/mips/cavium-octeon/octeon-platform.c
+@@ -336,14 +336,14 @@ static void __init octeon_fdt_pip_iface(
+ 	int p;
+ 	int count = 0;
+ 
+-	if (cvmx_helper_interface_enumerate(idx) == 0)
+-		count = cvmx_helper_ports_on_interface(idx);
+-
+ 	snprintf(name_buffer, sizeof(name_buffer), "interface@%d", idx);
+ 	iface = fdt_subnode_offset(initial_boot_params, pip, name_buffer);
+ 	if (iface < 0)
+ 		return;
+ 
++	if (cvmx_helper_interface_enumerate(idx) == 0)
++		count = cvmx_helper_ports_on_interface(idx);
++
+ 	for (p = 0; p < 16; p++)
+ 		octeon_fdt_pip_port(iface, idx, p, count - 1, pmac);
+ }
diff --git a/target/linux/octeon/patches-3.10/0010-MIPS-octeon-Add-interface-mode-detection-for-Octeon-.patch b/target/linux/octeon/patches-3.10/0010-MIPS-octeon-Add-interface-mode-detection-for-Octeon-.patch
new file mode 100644
index 0000000000..2002dd1d76
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/0010-MIPS-octeon-Add-interface-mode-detection-for-Octeon-.patch
@@ -0,0 +1,202 @@
+From d8ce75934b888df0bd73dfd9c030a2b034a04977 Mon Sep 17 00:00:00 2001
+From: Alex Smith <alex.smith@imgtec.com>
+Date: Thu, 29 May 2014 11:10:01 +0100
+Subject: [PATCH] MIPS: octeon: Add interface mode detection for Octeon II
+
+Add interface mode detection for Octeon II. This is necessary to detect
+the interface modes correctly on the UBNT E200 board. Code is taken
+from the UBNT GPL source release, with some alterations: SRIO, ILK and
+RXAUI interface modes are removed and instead return disabled as these
+modes are not currently supported.
+
+Signed-off-by: Alex Smith <alex.smith@imgtec.com>
+Tested-by: David Daney <david.daney@cavium.com>
+Cc: linux-mips@linux-mips.org
+Patchwork: https://patchwork.linux-mips.org/patch/7039/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/cavium-octeon/executive/cvmx-helper.c | 166 ++++++++++++++++++++++++
+ 1 file changed, 166 insertions(+)
+
+--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c
++++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c
+@@ -104,6 +104,158 @@ int cvmx_helper_ports_on_interface(int i
+ }
+ 
+ /**
++ * @INTERNAL
++ * Return interface mode for CN68xx.
++ */
++static cvmx_helper_interface_mode_t __cvmx_get_mode_cn68xx(int interface)
++{
++	union cvmx_mio_qlmx_cfg qlm_cfg;
++	switch (interface) {
++	case 0:
++		qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(0));
++		/* QLM is disabled when QLM SPD is 15. */
++		if (qlm_cfg.s.qlm_spd == 15)
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++		if (qlm_cfg.s.qlm_cfg == 2)
++			return CVMX_HELPER_INTERFACE_MODE_SGMII;
++		else if (qlm_cfg.s.qlm_cfg == 3)
++			return CVMX_HELPER_INTERFACE_MODE_XAUI;
++		else
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	case 2:
++	case 3:
++	case 4:
++		qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(interface));
++		/* QLM is disabled when QLM SPD is 15. */
++		if (qlm_cfg.s.qlm_spd == 15)
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++		if (qlm_cfg.s.qlm_cfg == 2)
++			return CVMX_HELPER_INTERFACE_MODE_SGMII;
++		else if (qlm_cfg.s.qlm_cfg == 3)
++			return CVMX_HELPER_INTERFACE_MODE_XAUI;
++		else
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	case 7:
++		qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(3));
++		/* QLM is disabled when QLM SPD is 15. */
++		if (qlm_cfg.s.qlm_spd == 15) {
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++		} else if (qlm_cfg.s.qlm_cfg != 0) {
++			qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(1));
++			if (qlm_cfg.s.qlm_cfg != 0)
++				return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++		}
++		return CVMX_HELPER_INTERFACE_MODE_NPI;
++	case 8:
++		return CVMX_HELPER_INTERFACE_MODE_LOOP;
++	default:
++		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	}
++}
++
++/**
++ * @INTERNAL
++ * Return interface mode for an Octeon II
++ */
++static cvmx_helper_interface_mode_t __cvmx_get_mode_octeon2(int interface)
++{
++	union cvmx_gmxx_inf_mode mode;
++
++	if (OCTEON_IS_MODEL(OCTEON_CN68XX))
++		return __cvmx_get_mode_cn68xx(interface);
++
++	if (interface == 2)
++		return CVMX_HELPER_INTERFACE_MODE_NPI;
++
++	if (interface == 3)
++		return CVMX_HELPER_INTERFACE_MODE_LOOP;
++
++	/* Only present in CN63XX & CN66XX Octeon model */
++	if ((OCTEON_IS_MODEL(OCTEON_CN63XX) &&
++	     (interface == 4 || interface == 5)) ||
++	    (OCTEON_IS_MODEL(OCTEON_CN66XX) &&
++	     interface >= 4 && interface <= 7)) {
++		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	}
++
++	if (OCTEON_IS_MODEL(OCTEON_CN66XX)) {
++		union cvmx_mio_qlmx_cfg mio_qlm_cfg;
++
++		/* QLM2 is SGMII0 and QLM1 is SGMII1 */
++		if (interface == 0)
++			mio_qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(2));
++		else if (interface == 1)
++			mio_qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(1));
++		else
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++		if (mio_qlm_cfg.s.qlm_spd == 15)
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++		if (mio_qlm_cfg.s.qlm_cfg == 9)
++			return CVMX_HELPER_INTERFACE_MODE_SGMII;
++		else if (mio_qlm_cfg.s.qlm_cfg == 11)
++			return CVMX_HELPER_INTERFACE_MODE_XAUI;
++		else
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	} else if (OCTEON_IS_MODEL(OCTEON_CN61XX)) {
++		union cvmx_mio_qlmx_cfg qlm_cfg;
++
++		if (interface == 0) {
++			qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(2));
++			if (qlm_cfg.s.qlm_cfg == 2)
++				return CVMX_HELPER_INTERFACE_MODE_SGMII;
++			else if (qlm_cfg.s.qlm_cfg == 3)
++				return CVMX_HELPER_INTERFACE_MODE_XAUI;
++			else
++				return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++		} else if (interface == 1) {
++			qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(0));
++			if (qlm_cfg.s.qlm_cfg == 2)
++				return CVMX_HELPER_INTERFACE_MODE_SGMII;
++			else if (qlm_cfg.s.qlm_cfg == 3)
++				return CVMX_HELPER_INTERFACE_MODE_XAUI;
++			else
++				return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++		}
++	} else if (OCTEON_IS_MODEL(OCTEON_CNF71XX)) {
++		if (interface == 0) {
++			union cvmx_mio_qlmx_cfg qlm_cfg;
++			qlm_cfg.u64 = cvmx_read_csr(CVMX_MIO_QLMX_CFG(0));
++			if (qlm_cfg.s.qlm_cfg == 2)
++				return CVMX_HELPER_INTERFACE_MODE_SGMII;
++		}
++		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++	}
++
++	if (interface == 1 && OCTEON_IS_MODEL(OCTEON_CN63XX))
++		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
++
++	if (OCTEON_IS_MODEL(OCTEON_CN63XX)) {
++		switch (mode.cn63xx.mode) {
++		case 0:
++			return CVMX_HELPER_INTERFACE_MODE_SGMII;
++		case 1:
++			return CVMX_HELPER_INTERFACE_MODE_XAUI;
++		default:
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++		}
++	} else {
++		if (!mode.s.en)
++			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++		if (mode.s.type)
++			return CVMX_HELPER_INTERFACE_MODE_GMII;
++		else
++			return CVMX_HELPER_INTERFACE_MODE_RGMII;
++	}
++}
++
++/**
+  * Get the operating mode of an interface. Depending on the Octeon
+  * chip and configuration, this function returns an enumeration
+  * of the type of packet I/O supported by an interface.
+@@ -116,6 +268,20 @@ int cvmx_helper_ports_on_interface(int i
+ cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int interface)
+ {
+ 	union cvmx_gmxx_inf_mode mode;
++
++	if (interface < 0 ||
++	    interface >= cvmx_helper_get_number_of_interfaces())
++		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
++
++	/*
++	 * Octeon II models
++	 */
++	if (OCTEON_IS_MODEL(OCTEON_CN6XXX) || OCTEON_IS_MODEL(OCTEON_CNF71XX))
++		return __cvmx_get_mode_octeon2(interface);
++
++	/*
++	 * Octeon and Octeon Plus models
++	 */
+ 	if (interface == 2)
+ 		return CVMX_HELPER_INTERFACE_MODE_NPI;
+ 
diff --git a/target/linux/octeon/patches-3.10/0011-MIPS-Octeon-Add-twsi-interrupt-initialization-for-OC.patch b/target/linux/octeon/patches-3.10/0011-MIPS-Octeon-Add-twsi-interrupt-initialization-for-OC.patch
new file mode 100644
index 0000000000..382410f239
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/0011-MIPS-Octeon-Add-twsi-interrupt-initialization-for-OC.patch
@@ -0,0 +1,47 @@
+From a53825ef4e9b2f42a21ad2b903f4d0ce691a5d63 Mon Sep 17 00:00:00 2001
+From: Eunbong Song <eunb.song@samsung.com>
+Date: Tue, 22 Apr 2014 06:16:15 +0000
+Subject: [PATCH] MIPS: Octeon: Add twsi interrupt initialization for OCTEON
+ 3XXX, 5XXX, 63XX
+
+In octeon_3xxx.dts file, there is a definiton for twsi/twsi2 interrupts.
+But there is no code for initialization of this interrupts. This patch adds
+code for initialization of twsi interrupts.
+
+Signed-off-by: Eunbong Song <eunb.song@samsung.com>
+Cc: linux-kernel@vger.kernel.org
+Cc: linux-mips@linux-mips.org
+Patchwork: https://patchwork.linux-mips.org/patch/6816/
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/cavium-octeon/octeon-irq.c           | 2 ++
+ arch/mips/include/asm/mach-cavium-octeon/irq.h | 2 ++
+ 2 files changed, 4 insertions(+)
+
+--- a/arch/mips/cavium-octeon/octeon-irq.c
++++ b/arch/mips/cavium-octeon/octeon-irq.c
+@@ -1260,11 +1260,13 @@ static void __init octeon_irq_init_ciu(v
+ 	for (i = 0; i < 4; i++)
+ 		octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_PCI_MSI0, 0, i + 40);
+ 
++	octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI, 0, 45);
+ 	octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_RML, 0, 46);
+ 	for (i = 0; i < 4; i++)
+ 		octeon_irq_force_ciu_mapping(ciu_domain, i + OCTEON_IRQ_TIMER0, 0, i + 52);
+ 
+ 	octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_USB0, 0, 56);
++	octeon_irq_force_ciu_mapping(ciu_domain, OCTEON_IRQ_TWSI2, 0, 59);
+ 
+ 	/* CIU_1 */
+ 	for (i = 0; i < 16; i++)
+--- a/arch/mips/include/asm/mach-cavium-octeon/irq.h
++++ b/arch/mips/include/asm/mach-cavium-octeon/irq.h
+@@ -35,6 +35,8 @@ enum octeon_irq {
+ 	OCTEON_IRQ_PCI_MSI2,
+ 	OCTEON_IRQ_PCI_MSI3,
+ 
++	OCTEON_IRQ_TWSI,
++	OCTEON_IRQ_TWSI2,
+ 	OCTEON_IRQ_RML,
+ 	OCTEON_IRQ_TIMER0,
+ 	OCTEON_IRQ_TIMER1,