soc/cpuif: add with_access_functions parameter
When don't necessary need access functions in our csr.h (for example with an X86 CPU)
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958f149992
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9666629c4f
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@ -34,7 +34,7 @@ def get_mem_header(regions, flash_boot_address):
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return r
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return r
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def _get_rw_functions(reg_name, reg_base, nwords, busword, read_only):
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def _get_rw_functions(reg_name, reg_base, nwords, busword, read_only, with_access_functions):
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r = ""
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r = ""
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r += "#define CSR_"+reg_name.upper()+"_ADDR "+hex(reg_base)+"\n"
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r += "#define CSR_"+reg_name.upper()+"_ADDR "+hex(reg_base)+"\n"
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@ -52,30 +52,33 @@ def _get_rw_functions(reg_name, reg_base, nwords, busword, read_only):
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else:
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else:
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ctype = "unsigned char"
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ctype = "unsigned char"
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r += "static inline "+ctype+" "+reg_name+"_read(void) {\n"
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if with_access_functions:
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if size > 1:
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r += "static inline "+ctype+" "+reg_name+"_read(void) {\n"
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r += "\t"+ctype+" r = MMPTR("+hex(reg_base)+");\n"
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if size > 1:
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for byte in range(1, nwords):
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r += "\t"+ctype+" r = MMPTR("+hex(reg_base)+");\n"
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r += "\tr <<= "+str(busword)+";\n\tr |= MMPTR("+hex(reg_base+4*byte)+");\n"
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for byte in range(1, nwords):
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r += "\treturn r;\n}\n"
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r += "\tr <<= "+str(busword)+";\n\tr |= MMPTR("+hex(reg_base+4*byte)+");\n"
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else:
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r += "\treturn r;\n}\n"
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r += "\treturn MMPTR("+hex(reg_base)+");\n}\n"
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else:
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r += "\treturn MMPTR("+hex(reg_base)+");\n}\n"
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if not read_only:
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if not read_only:
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r += "static inline void "+reg_name+"_write("+ctype+" value) {\n"
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r += "static inline void "+reg_name+"_write("+ctype+" value) {\n"
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for word in range(nwords):
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for word in range(nwords):
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shift = (nwords-word-1)*busword
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shift = (nwords-word-1)*busword
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if shift:
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if shift:
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value_shifted = "value >> "+str(shift)
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value_shifted = "value >> "+str(shift)
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else:
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else:
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value_shifted = "value"
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value_shifted = "value"
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r += "\tMMPTR("+hex(reg_base+4*word)+") = "+value_shifted+";\n"
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r += "\tMMPTR("+hex(reg_base+4*word)+") = "+value_shifted+";\n"
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r += "}\n"
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r += "}\n"
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return r
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return r
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def get_csr_header(regions, constants):
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def get_csr_header(regions, constants, with_access_functions=True):
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r = "#ifndef __GENERATED_CSR_H\n#define __GENERATED_CSR_H\n#include <hw/common.h>\n"
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r = "#ifndef __GENERATED_CSR_H\n#define __GENERATED_CSR_H\n"
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if with_access_functions:
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r += "#include <hw/common.h>\n"
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for name, origin, busword, obj in regions:
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for name, origin, busword, obj in regions:
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if isinstance(obj, Memory):
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if isinstance(obj, Memory):
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r += "#define CSR_"+name.upper()+"_BASE "+hex(origin)+"\n"
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r += "#define CSR_"+name.upper()+"_BASE "+hex(origin)+"\n"
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@ -84,7 +87,7 @@ def get_csr_header(regions, constants):
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r += "#define CSR_"+name.upper()+"_BASE "+hex(origin)+"\n"
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r += "#define CSR_"+name.upper()+"_BASE "+hex(origin)+"\n"
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for csr in obj:
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for csr in obj:
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nr = (csr.size + busword - 1)//busword
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nr = (csr.size + busword - 1)//busword
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r += _get_rw_functions(name + "_" + csr.name, origin, nr, busword, isinstance(csr, CSRStatus))
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r += _get_rw_functions(name + "_" + csr.name, origin, nr, busword, isinstance(csr, CSRStatus), with_access_functions)
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origin += 4*nr
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origin += 4*nr
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r += "\n/* constants */\n"
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r += "\n/* constants */\n"
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