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Merge pull request #252 from antmicro/jboc/lpddr4-inc-freq 

init: generate sdram_phy.h in a way that allows to include it in multiple units
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enjoy-digital 2021-05-18 10:27:39 +02:00 committed by GitHub
parent 762da8034d 282c208b63
commit afbb229308
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1 changed files with 18 additions and 12 deletions
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30
litedram/init.py
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@ -735,7 +735,7 @@ def get_sdram_phy_c_header(phy_settings, timing_settings):
# Commands functions
for n in range(nphases):
r += """
__attribute__((unused)) static void command_p{n}(int cmd)
__attribute__((unused)) static inline void command_p{n}(int cmd)
{{
sdram_dfii_pi{n}_command_write(cmd);
sdram_dfii_pi{n}_command_issue_write(1);
@ -743,24 +743,30 @@ __attribute__((unused)) static void command_p{n}(int cmd)
r += "\n\n"
# Write/Read functions
pix_addr_fmt = """
static inline unsigned long {name}(int phase){{
\tswitch (phase) {{
\t\t{cases}
\t\tdefault: return 0;
\t}}
}}
"""
get_cases = lambda addrs: ["case {}: return {};".format(i, addr) for i, addr in enumerate(addrs)]
r += "#define DFII_PIX_DATA_SIZE CSR_SDRAM_DFII_PI0_WRDATA_SIZE\n"
sdram_dfii_pix_wrdata_addr = []
for n in range(nphases):
sdram_dfii_pix_wrdata_addr.append("CSR_SDRAM_DFII_PI{n}_WRDATA_ADDR".format(n=n))
r += """
const unsigned long sdram_dfii_pix_wrdata_addr[SDRAM_PHY_PHASES] = {{
\t{sdram_dfii_pix_wrdata_addr}
}};
""".format(sdram_dfii_pix_wrdata_addr=",\n\t".join(sdram_dfii_pix_wrdata_addr))
r += pix_addr_fmt.format(
name = "sdram_dfii_pix_wrdata_addr",
cases = "\n\t\t".join(get_cases(sdram_dfii_pix_wrdata_addr)))
sdram_dfii_pix_rddata_addr = []
for n in range(nphases):
sdram_dfii_pix_rddata_addr.append("CSR_SDRAM_DFII_PI{n}_RDDATA_ADDR".format(n=n))
r += """
const unsigned long sdram_dfii_pix_rddata_addr[SDRAM_PHY_PHASES] = {{
\t{sdram_dfii_pix_rddata_addr}
}};
""".format(sdram_dfii_pix_rddata_addr=",\n\t".join(sdram_dfii_pix_rddata_addr))
r += pix_addr_fmt.format(
name = "sdram_dfii_pix_rddata_addr",
cases = "\n\t\t".join(get_cases(sdram_dfii_pix_rddata_addr)))
r += "\n"
init_sequence, mr = get_sdram_phy_init_sequence(phy_settings, timing_settings)
@ -776,7 +782,7 @@ const unsigned long sdram_dfii_pix_rddata_addr[SDRAM_PHY_PHASES] = {{
r += "#define DDRX_MR_WRLVL_RESET {}\n".format(mr[2])
r += "#define DDRX_MR_WRLVL_BIT {}\n\n".format(7)
r += "static void init_sequence(void)\n{\n"
r += "static inline void init_sequence(void)\n{\n"
for comment, a, ba, cmd, delay in init_sequence:
invert_masks = [(0, 0), ]
if phy_settings.is_rdimm: