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| author | Tom Rini <trini@ti.com> | 2013-07-25 08:22:08 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-07-25 08:51:51 -0400 |
| commit | aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c (patch) | |
| tree | 64eaea4d396dce4e0a30bb955b8240d4b199cdca /arch/nds32/cpu/n1213/ag102/lowlevel_init.S | |
| parent | 0b17998e509e5614633aee0a3c5d6248f8bc580b (diff) | |
| parent | c54fd3efa497876a33cc3c6e7df514ae53abc729 (diff) | |
| download | blackbird-obmc-uboot-aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c.tar.gz blackbird-obmc-uboot-aaf5e825606a70ddc8fca8e366d8c16a6fd3cc7c.zip | |
Merge branch 'master' of git://git.denx.de/u-boot-nds32
Diffstat (limited to 'arch/nds32/cpu/n1213/ag102/lowlevel_init.S')
| -rw-r--r-- | arch/nds32/cpu/n1213/ag102/lowlevel_init.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/nds32/cpu/n1213/ag102/lowlevel_init.S b/arch/nds32/cpu/n1213/ag102/lowlevel_init.S index 94018483f2..238410dde4 100644 --- a/arch/nds32/cpu/n1213/ag102/lowlevel_init.S +++ b/arch/nds32/cpu/n1213/ag102/lowlevel_init.S @@ -98,6 +98,11 @@ lowlevel_init: led 0x20 jal remap +#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP)) + led 0x2f + jal enable_fpu +#endif + led 0x30 ret $r10 @@ -273,6 +278,27 @@ relo_base: 2: ret + /* + * enable_fpu: + * Some of Andes CPU version support FPU coprocessor, if so, + * and toolchain support FPU instruction set, we should enable it. + */ +#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP)) +enable_fpu: + mfsr $r0, $CPU_VER /* enable FPU if it exists */ + srli $r0, $r0, 3 + andi $r0, $r0, 1 + beqz $r0, 1f /* skip if no COP */ + mfsr $r0, $FUCOP_EXIST + srli $r0, $r0, 31 + beqz $r0, 1f /* skip if no FPU */ + mfsr $r0, $FUCOP_CTL + ori $r0, $r0, 1 + mtsr $r0, $FUCOP_CTL +1: + ret +#endif + .globl show_led show_led: li $r8, (CONFIG_DEBUG_LED) |
