On Mon, 29 Jun 2015 17:26:56 +0300
Alexander Smirnov <alllecs@xxxxxxxxx> wrote:
> Signed-off-by: Alexander Smirnov <alllecs@xxxxxxxxx>
> ---
> common/ddr_spd.c | 239 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> include/ddr_spd.h | 1 +
> 2 files changed, 240 insertions(+)
>
> diff --git a/common/ddr_spd.c b/common/ddr_spd.c
> index ea0b529..380ea18 100644
> --- a/common/ddr_spd.c
> +++ b/common/ddr_spd.c
> @@ -61,3 +61,242 @@ uint32_t ddr3_spd_checksum_pass(const struct ddr3_spd_eeprom_s *spd)
>
> return 0;
> }
> +
> +static char *heights[] = {
> + "<25.4",
> + "25.4",
> + "25.4 - 30.0",
> + "30.0",
> + "30.5",
> + "> 30.5"
> +};
> +
> +static char *sdram_voltage_interface_level[] = {
> + "TTL (5V tolerant)",
> + "LVTTL (not 5V tolerant)",
> + "HSTL 1.5V",
> + "SSTL 3.3V",
> + "SSTL 2.5V",
> + "SSTL 1.8V"
> +};
> +
> +static char *ddr2_module_types[] = {
> + "RDIMM (133.35 mm)",
> + "UDIMM (133.25 mm)",
> + "SO-DIMM (67.6 mm)",
> + "Micro-DIMM (45.5 mm)",
> + "Mini-RDIMM (82.0 mm)",
> + "Mini-UDIMM (82.0 mm)"
> +};
> +
> +static char *refresh[] = {
> + "15.625",
> + "3.9",
> + "7.8",
> + "31.3",
> + "62.5",
> + "125"
> +};
> +
> +static char *type_list[] = {
> + "Reserved",
> + "FPM DRAM",
> + "EDO",
> + "Pipelined Nibble",
> + "SDR SDRAM",
> + "Multiplexed ROM",
> + "DDR SGRAM",
> + "DDR SDRAM",
> + "DDR2 SDRAM",
> + "FB-DIMM",
> + "FB-DIMM Probe",
> + "DDR3 SDRAM"
> +};
> +
> +static int funct(uint8_t addr)
> +{
> + int t;
> +
> + t = ((addr >> 4) * 10 + (addr & 0xf));
> +
> + return t;
> +}
> +
> +static int des(uint8_t byte)
> +{
> + int k;
> +
> + k = (byte & 0x3) * 10 / 4;
> +
> + return k;
> +}
> +
> +static int integ(uint8_t byte)
> +{
> + int k;
> +
> + k = (byte >> 2);
> +
> + return k;
> +}
> +
> +static int ddr2_sdram_ctime(uint8_t byte)
> +{
> + int ctime;
> +
> + ctime = (byte >> 4) * 100;
> + if ((byte & 0xf) <= 9)
> + ctime += (byte & 0xf) * 10;
> + else if ((byte & 0xf) == 10)
> + ctime += 25;
> + else if ((byte & 0xf) == 11)
> + ctime += 33;
> + else if ((byte & 0xf) == 12)
> + ctime += 66;
> + else if ((byte & 0xf) == 13)
> + ctime += 75;
> +
> + return ctime;
> +}
> +
> +void ddr_spd_print(uint8_t *record)
> +{
> + int highestCAS = 0;
> + int cas[256];
> + int i, i_i, k, x, y;
> + int ddrclk, tbits, pcclk;
> + int trcd, trp, tras;
> + int ctime;
> + uint8_t parity;
> + char *ref;
> + struct ddr2_spd_eeprom_s *s = (struct ddr2_spd_eeprom_s *)record;
> +
> + ctime = ddr2_sdram_ctime(s->clk_cycle);
> + ddrclk = 2 * (1000 / ctime) * 100;
> + tbits = ((s->res_7) << 8) + (s->dataw);
> + if (((s->config) & 0x03) == 1)
> + tbits = tbits - 8;
> +
> + pcclk = ddrclk * tbits / 8;
> + pcclk = pcclk - (pcclk % 100);
> + i_i = ((s->nrow_addr) & 0x0f) + ((s->ncol_addr) & 0x0f) - 17;
> + k = (((s->mod_ranks) & 0x7) + 1) * (s->nbanks);
> + trcd = (((s->trcd) >> 2) + (((s->trcd) & 3) * 0.25)) / ctime * 100;
> + trp = (((s->trp) >> 2) + (((s->trp) & 3) * 0.25)) / ctime * 100;
> + tras = (s->tras) * 100 / ctime ;
> + x = (int)(ctime / 100);
> + y = (ctime - (int)((ctime / 100) * 100)) / 10;
> +
> + for (i_i = 2; i_i < 7; i_i++) {
> + if ((s->cas_lat) & (1 << i_i)) {
> + highestCAS = i_i;
> + cas[highestCAS]++;
> + }
> + }
> + printf("---=== SPD EEPROM Information ===---\n");
> + printf("%-50s OK (0x%0X)\n", "EEPROM Checksum of bytes 0-62", s->cksum);
Hmmmm.
Your checksum is always OK :)
Please use ddr2_spd_checksum_pass().
--
Best regards,
Antony Pavlov
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