Hardware
/
litex
mirror of https://github.com/enjoy-digital/litex.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

soc_sdram: remove axi usecase, this was only useful to do some preliminary axi tests. 

Proper AXI support will be added in the future for SoCs.
This commit is contained in:
Florent Kermarrec 2019-09-29 17:33:16 +02:00
parent e8e57b4f87
commit 3d257d7266
1 changed files with 4 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
litex/soc/integration/soc_sdram.py
View File

@ -11,7 +11,6 @@ from litex.soc.interconnect import wishbone
from litex.soc.integration.soc_core import * from litex.soc.integration.soc_core import *
from litedram.frontend.wishbone import * from litedram.frontend.wishbone import *
from litedram.frontend.axi import *
from litedram.core import LiteDRAMCore from litedram.core import LiteDRAMCore
__all__ = ["SoCSDRAM", "soc_sdram_args", "soc_sdram_argdict"] __all__ = ["SoCSDRAM", "soc_sdram_args", "soc_sdram_argdict"]
@ -21,7 +20,7 @@ __all__ = ["SoCSDRAM", "soc_sdram_args", "soc_sdram_argdict"]
class SoCSDRAM(SoCCore): class SoCSDRAM(SoCCore):
csr_map = { csr_map = {
"sdram": 8, "sdram": 8,
"l2_cache": 9 "l2_cache": 9,
} }
csr_map.update(SoCCore.csr_map) csr_map.update(SoCCore.csr_map)
@ -41,7 +40,7 @@ class SoCSDRAM(SoCCore):
raise FinalizeError raise FinalizeError
self._wb_sdram_ifs.append(interface) self._wb_sdram_ifs.append(interface)
def register_sdram(self, phy, geom_settings, timing_settings, use_axi=False, use_full_memory_we=True, **kwargs): def register_sdram(self, phy, geom_settings, timing_settings, use_full_memory_we=True, **kwargs):
assert not self._sdram_phy assert not self._sdram_phy
self._sdram_phy.append(phy) # encapsulate in list to prevent CSR scanning self._sdram_phy.append(phy) # encapsulate in list to prevent CSR scanning
@ -86,14 +85,6 @@ class SoCSDRAM(SoCCore):
self.config["L2_SIZE"] = l2_size self.config["L2_SIZE"] = l2_size
# L2 Cache <--> LiteDRAM bridge -------------------------------------------------------- # L2 Cache <--> LiteDRAM bridge --------------------------------------------------------
if use_axi:
axi_port = LiteDRAMAXIPort(
data_width = port.data_width,
address_width = port.address_width + log2_int(port.data_width//8))
axi2native = LiteDRAMAXI2Native(axi_port, port)
self.submodules += axi2native
self.submodules.wishbone_bridge = LiteDRAMWishbone2AXI(self.l2_cache.slave, axi_port)
else:
self.submodules.wishbone_bridge = LiteDRAMWishbone2Native(self.l2_cache.slave, port) self.submodules.wishbone_bridge = LiteDRAMWishbone2Native(self.l2_cache.slave, port)
def do_finalize(self): def do_finalize(self):