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Enable SCU Speculative linefills to L2 on Armada 38x

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Submitted by: Marcin Wojtas <mw@semihalf.com>
Obtained from: Semihalf
Sponsored by: Stormshield
Differential revision: https://reviews.freebsd.org/D10709
This commit is contained in:
Zbigniew Bodek 2017-05-25 14:19:20 +00:00
parent 70d163328d
commit bb98396b47
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=318875
2 changed files with 7 additions and 2 deletions
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6
sys/arm/mv/armada38x/armada38x.c
View File

@ -173,9 +173,13 @@ armada38x_scu_enable(void)
/* Enable SCU */
val = bus_space_read_4(fdtbus_bs_tag, vaddr_scu, MV_SCU_REG_CTRL);
if (!(val & MV_SCU_ENABLE))
if (!(val & MV_SCU_ENABLE)) {
/* Enable SCU Speculative linefills to L2 */
val |= MV_SCU_SL_L2_ENABLE;
bus_space_write_4(fdtbus_bs_tag, vaddr_scu, 0,
val | MV_SCU_ENABLE);
}
bus_space_unmap(fdtbus_bs_tag, vaddr_scu, MV_SCU_REGS_LEN);
return (0);

3
sys/arm/mv/mvreg.h
View File

@ -424,7 +424,8 @@
#define MV_SCU_REGS_LEN 0x100
#define MV_SCU_REG_CTRL 0x00
#define MV_SCU_REG_CONFIG 0x04
#define MV_SCU_ENABLE 1
#define MV_SCU_ENABLE (1 << 0)
#define MV_SCU_SL_L2_ENABLE (1 << 3)
#define SCU_CFG_REG_NCPU_MASK 0x3
#endif