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tools/litex_json2dts_linux: add *-endian to support csr ordering 

csr_ordering default is "big" but there was no way for software
to detect if csr_ordering was changed to "little" to match the cpu.
This commit is contained in:
Andrew Dennison 2024-04-08 17:40:11 +10:00
parent ab678b42f3
commit 1d7c738107
1 changed files with 7 additions and 0 deletions
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7
litex/tools/litex_json2dts_linux.py
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@ -54,6 +54,11 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
cpu_mmu = d["constants"].get("config_cpu_mmu", None)
# CSR Parameters -------------------------------------------------------------------------------
csr_ordering = d["constants"].get("config_csr_ordering", "big")
assert csr_ordering in ["big", "little"]
dts_endian = f"{csr_ordering}-endian;"
# Header ---------------------------------------------------------------------------------------
dts = """
/dts-v1/;
@ -521,6 +526,7 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
vmmc-supply = <&vreg_mmc>;
bus-width = <0x04>;
{sdcard_irq_interrupt}
{dts_endian}
status = "okay";
}};
""".format(
@ -530,6 +536,7 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
sdcard_block2mem = d["csr_bases"]["sdcard_block2mem"],
sdcard_mem2block = d["csr_bases"]["sdcard_mem2block"],
sdcard_irq = d["csr_bases"]["sdcard_irq"],
dts_endian = dts_endian,
sdcard_irq_interrupt = "" if polling else "interrupts = <{}>;".format(d["constants"]["sdcard_irq_interrupt"])
)
# Leds -----------------------------------------------------------------------------------------