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SDM > inspects it when the watchdog fires due to a DDR init hang, so that it can > run a clean reset of the DDR subsystem before the next attempt. > > Set the bit when SDRAM init starts and clear it once the basic memory test > has passed. > > Signed-off-by: Tien Fong Chee > Signed-off-by: Chen Huei Lok > --- > drivers/ddr/altera/sdram_n5x.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/drivers/ddr/altera/sdram_n5x.c b/drivers/ddr/altera/sdram_n5x.c > index 4ac22c536fc..4da0617e37c 100644 > --- a/drivers/ddr/altera/sdram_n5x.c > +++ b/drivers/ddr/altera/sdram_n5x.c > @@ -420,6 +420,18 @@ enum data_process { > LOADING > }; > > +void ddr_init_inprogress(bool start) > +{ > + if (start) > + setbits_le32(socfpga_get_sysmgr_addr() + > + SYSMGR_SOC64_BOOT_SCRATCH_COLD8, > + ALT_SYSMGR_SCRATCH_REG_8_DDR_PROGRESS_MASK); > + else > + clrbits_le32(socfpga_get_sysmgr_addr() + > + SYSMGR_SOC64_BOOT_SCRATCH_COLD8, > + ALT_SYSMGR_SCRATCH_REG_8_DDR_PROGRESS_MASK); > +} > + > bool is_ddr_retention_enabled(u32 reg) > { > if (reg & ALT_SYSMGR_SCRATCH_REG_0_DDR_RETENTION_MASK) > @@ -2820,6 +2832,7 @@ int sdram_mmr_init_full(struct udevice *dev) > > if (!is_ddr_init_skipped(reg)) { > printf("SDRAM init in progress ...\n"); > + ddr_init_inprogress(true); > > /* > * Polling reset complete, must be high to ensure DDR > @@ -2970,6 +2983,9 @@ int sdram_mmr_init_full(struct udevice *dev) > > sdram_size_check(&bd); > > + /* Marking end of ddr init with passing basic memory test */ > + ddr_init_inprogress(false); > + > sdram_set_firewall(&bd); > > if (is_ddr_retention_enabled(reg)) { Reviewed-by: Tien Fong Chee Best regards, Tien Fong