+tx51-60x0 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=600,NR_DRAM_BANKS=1,SYS_SDRAM_CLK=166
+tx51-60x1 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=600,NR_DRAM_BANKS=2,SYS_SDRAM_CLK=200
+tx51-60x2 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=600,NR_DRAM_BANKS=2,SYS_SDRAM_CLK=166
+tx51-80x0 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=800,NR_DRAM_BANKS=1,SYS_SDRAM_CLK=166
+tx51-80x1 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=800,NR_DRAM_BANKS=2,SYS_SDRAM_CLK=200
+tx51-80x2 arm armv7 tx51 karo mx5 tx51:SYS_CPU_CLK=800,NR_DRAM_BANKS=2,SYS_SDRAM_CLK=166