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lib/spd_bin: Cleanup spd_get_banks 

Remove the switch case in spd_get_banks. The LPDDR4X adapt DDR4 attributes.

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Icfaefd1856d2350c6e5a91d233ccdb10d5259391
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39496
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Eric Lai 2020-03-13 17:21:59 +08:00 committed by Patrick Georgi
parent cb1e386eab
commit 4d5fd77cf8
1 changed files with 6 additions and 13 deletions
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19
src/lib/spd_bin.c
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@ -76,22 +76,15 @@ static int spd_get_banks(const uint8_t spd[], int dram_type)
static const int ddr3_banks[4] = { 8, 16, 32, 64 };
static const int ddr4_banks[10] = { 4, 8, -1, -1, 8, 16, -1, -1, 16, 32 };
int index = (spd[SPD_DENSITY_BANKS] >> 4) & 0xf;
switch (dram_type) {
/* DDR3 and LPDDR3_Intel have the same bank definition */
case SPD_DRAM_DDR3:
case SPD_DRAM_LPDDR3_INTEL:
if (index >= ARRAY_SIZE(ddr3_banks))
return -1;
return ddr3_banks[index];
/* LPDDR3, LPDDR4 and DDR4 have the same bank definition */
case SPD_DRAM_LPDDR3_JEDEC:
case SPD_DRAM_DDR4:
case SPD_DRAM_LPDDR4:
if (use_ddr4_params(dram_type)) {
if (index >= ARRAY_SIZE(ddr4_banks))
return -1;
return ddr4_banks[index];
default:
return -1;
} else {
if (index >= ARRAY_SIZE(ddr3_banks))
return -1;
return ddr3_banks[index];
}
}