[OpenWrt-Devel] Howto force mips64

[Martin Fäcknitz]

force mips64 support is quite simple: set

  CPU_CFLAGS_octeon=-march=octeon -mabi=64

inside target/linux/octeon/Makefile and replace the same line in
include/target.mk. Finally you have to add the following patch:

diff --git a/target/linux/octeon/patches-3.10/9999-cn61xx_support.patch
b/target/linux/octeon/patches-3.10/9999-cn61xx_support.patch
new file mode 100644
index 0000000..18d2f3d
--- /dev/null
+++ b/target/linux/octeon/patches-3.10/9999-cn61xx_support.patch
@@ -0,0 +1,47 @@
+Index: b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c
+===================================================================
+--- a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c	2014-05-06
15:24:06.000000000 +0200
++++ b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c	2014-05-06
15:25:14.000000000 +0200
+@@ -75,6 +75,8 @@
+ int cvmx_helper_board_get_mii_address(int ipd_port)
+ {
+ 	switch (cvmx_sysinfo_get()->board_type) {
++	case 20003:
++		return -1;
+ 	case CVMX_BOARD_TYPE_SIM:
+ 		/* Simulator doesn't have MII */
+ 		return -1;
+Index: b/arch/mips/cavium-octeon/executive/cvmx-helper.c
+===================================================================
+--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c	2014-01-25
17:27:55.000000000 +0100
++++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c	2014-05-06
15:25:47.000000000 +0200
+@@ -83,7 +83,7 @@
+  */
+ int cvmx_helper_get_number_of_interfaces(void)
+ {
+-	if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
++	if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX) ||
OCTEON_IS_MODEL(OCTEON_CN61XX))
+ 		return 4;
+ 	else
+ 		return 3;
+@@ -121,7 +121,8 @@
+
+ 	if (interface == 3) {
+ 		if (OCTEON_IS_MODEL(OCTEON_CN56XX)
+-		    || OCTEON_IS_MODEL(OCTEON_CN52XX))
++		    || OCTEON_IS_MODEL(OCTEON_CN52XX)
++		    || OCTEON_IS_MODEL(OCTEON_CN6XXX))
+ 			return CVMX_HELPER_INTERFACE_MODE_LOOP;
+ 		else
+ 			return CVMX_HELPER_INTERFACE_MODE_DISABLED;
+@@ -152,7 +153,9 @@
+
+ 	mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
+
+-	if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
++	if (OCTEON_IS_MODEL(OCTEON_CN61XX)) {
++		return CVMX_HELPER_INTERFACE_MODE_SGMII;
++	} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
+ 		switch (mode.cn56xx.mode) {
+ 		case 0:
+ 			return CVMX_HELPER_INTERFACE_MODE_DISABLED;

uclibc's mips64 support is broken, so you have to use glibc. gcc-4.8
doesn't work for me (invalid TLS related code), therefore use gcc-4.6.

greets

On 16.06.2014 23:26, Edison Figueira Junior wrote:
> hello, I can be a beta test if you want :-)
> 
> Enviada do meu iPhone
> 
>> Em 04/06/2014, às 10:05, John Crispin <john at phrozen.org> escreveu:
>>
>> octeon is currently only partially working. we will push a fix to
>> trunk in the next few days. experimental patch is currently in
>> testing. please be patient for a few dyas
>>
>>
>>> On 04/06/2014 14:36, Edison Figueira Junior wrote:
>>> Howto force to use mips64 for target octeon?
>>>
>>>
>>>
>>>
>>> _______________________________________________ openwrt-devel
>>> mailing list openwrt-devel at lists.openwrt.org 
>>> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>> _______________________________________________
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-- 
Martin Fäcknitz

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