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net: stmmac: dwmac4: Allow platforms to specify some DMA/MTL offsets

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Some platforms have dwmac4 implementations that have a different
address space layout than the default, resulting in the need to define
their own DMA/MTL offsets.

Extend the functions to allow a platform driver to indicate what its
addresses are, overriding the defaults.

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Andrew Halaney
2023-04-11 15:04:06 -05:00
committed by Paolo Abeni
parent 1d84b487bc
commit 33719b57f5
6 changed files with 293 additions and 141 deletions
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19
include/linux/stmmac.h
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@@ -186,6 +186,24 @@ struct stmmac_safety_feature_cfg {
u32 tmouten;
};
/* Addresses that may be customized by a platform */
struct dwmac4_addrs {
u32 dma_chan;
u32 dma_chan_offset;
u32 mtl_chan;
u32 mtl_chan_offset;
u32 mtl_ets_ctrl;
u32 mtl_ets_ctrl_offset;
u32 mtl_txq_weight;
u32 mtl_txq_weight_offset;
u32 mtl_send_slp_cred;
u32 mtl_send_slp_cred_offset;
u32 mtl_high_cred;
u32 mtl_high_cred_offset;
u32 mtl_low_cred;
u32 mtl_low_cred_offset;
};
struct plat_stmmacenet_data {
int bus_id;
int phy_addr;
@@ -274,5 +292,6 @@ struct plat_stmmacenet_data {
bool use_phy_wol;
bool sph_disable;
bool serdes_up_after_phy_linkup;
const struct dwmac4_addrs *dwmac4_addrs;
};
#endif