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mpfs_ethernet.c: Remove DMA_ENABLE hack

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The hack just opens the entire SoC memory unconditionally, which is not
a good idea.

Test features can be used ad-hoc, they don't need to be supported by the
build.
This commit is contained in:
Ville Juven 2023-12-15 13:00:38 +02:00 • committed by Xiang Xiao
parent 9483729328
commit fbd8a2127a
2 changed files with 0 additions and 18 deletions
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7
arch/risc-v/src/mpfs/Kconfig
View file

@ -789,13 +789,6 @@ config MPFS_ETHMAC_REGDEBUG
Enable very low-level register access debug. Depends on
CONFIG_DEBUG_FEATURES.
config MPFS_MPU_DMA_ENABLE
bool "Enable ALL memory access for eth DMA"
default n
---help---
Set ALL memory accessible for Ethernet DMA.
This should be done on bootloader. This is mostly for testing only.
endmenu
config MPFS_HAVE_CORERMII

11
arch/risc-v/src/mpfs/mpfs_ethernet.c
View file

@ -3627,17 +3627,6 @@ int mpfs_ethinitialize(int intf)
mpfs_read_dsn(&priv->dev.d_mac.ether.ether_addr_octet[1], 5);
/* MPU hack for ETH DMA if not enabled by bootloader */
#ifdef CONFIG_MPFS_MPU_DMA_ENABLE
# ifdef CONFIG_MPFS_ETHMAC_0
putreg64(0x1f00000fffffffff, MPFS_PMPCFG_ETH0_0);
# endif
# ifdef CONFIG_MPFS_ETHMAC_1
putreg64(0x1f00000fffffffff, MPFS_PMPCFG_ETH1_0);
# endif
#endif
/* Allocate buffers */
ret = mpfs_buffer_initialize(priv, 0);