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| author | Moti Buskila <motib@marvell.com> | 2021-02-19 17:11:19 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-02-26 10:22:29 +0100 |
| commit | 32e7a6baef2bcaacd5e2ca2d788072a487c5e311 (patch) | |
| tree | 866793beae1f78b46f67b42e63ffae8da30b341f /drivers | |
| parent | 52dd9b96fcacb42a14caa126b18afe52cf42b556 (diff) | |
| download | u-boot-32e7a6baef2bcaacd5e2ca2d788072a487c5e311.tar.gz u-boot-32e7a6baef2bcaacd5e2ca2d788072a487c5e311.tar.xz u-boot-32e7a6baef2bcaacd5e2ca2d788072a487c5e311.zip | |
ddr: marvell: a38x: add support for twin-die combined memory device
commit 6285efb8a118940877522c4c07bd7c64569b4f5f upstream.
the twin-die combined memory device should be treatened as X8
device and not as X16 one
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
[ - the default value for twin_die_combined is set to NOT_COMBINED for
all boards, as this was default behaviour prior this change ]
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr_topology_def.h | 12 | ||||
| -rw-r--r-- | drivers/ddr/marvell/a38x/mv_ddr_topology.c | 6 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr_topology_def.h b/drivers/ddr/marvell/a38x/ddr_topology_def.h index 3991fec272..461f091472 100644 --- a/drivers/ddr/marvell/a38x/ddr_topology_def.h +++ b/drivers/ddr/marvell/a38x/ddr_topology_def.h @@ -14,6 +14,11 @@ #define MV_DDR_MAX_BUS_NUM 9 #define MV_DDR_MAX_IFACE_NUM 1 +enum mv_ddr_twin_die { + COMBINED, + NOT_COMBINED, +}; + struct bus_params { /* Chip Select (CS) bitmask (bits 0-CS0, bit 1- CS1 ...) */ u8 cs_bitmask; @@ -47,6 +52,9 @@ struct if_params { /* The DDR frequency for each interfaces */ enum mv_ddr_freq memory_freq; + /* ddr twin-die */ + enum mv_ddr_twin_die twin_die_combined; + /* * delay CAS Write Latency * - 0 for using default value (jedec suggested) @@ -113,6 +121,9 @@ struct mv_ddr_topology_map { /* source of ddr configuration data */ enum mv_ddr_cfg_src cfg_src; + /* ddr twin-die */ + enum mv_ddr_twin_die twin_die_combined; + /* raw spd data */ union mv_ddr_spd_data spd_data; @@ -193,6 +204,7 @@ struct mv_ddr_iface { /* ddr interface topology map */ struct mv_ddr_topology_map tm; + }; struct mv_ddr_iface *mv_ddr_iface_get(void); diff --git a/drivers/ddr/marvell/a38x/mv_ddr_topology.c b/drivers/ddr/marvell/a38x/mv_ddr_topology.c index c4c3ab72b2..2db6283c23 100644 --- a/drivers/ddr/marvell/a38x/mv_ddr_topology.c +++ b/drivers/ddr/marvell/a38x/mv_ddr_topology.c @@ -127,6 +127,11 @@ int mv_ddr_topology_map_update(void) speed_bin_index = iface_params->speed_bin_index; freq = iface_params->memory_freq; + if (tm->twin_die_combined == COMBINED) { + iface_params->bus_width = MV_DDR_DEV_WIDTH_8BIT; + iface_params->memory_size -= 1; + } + if (iface_params->cas_l == 0) iface_params->cas_l = mv_ddr_cl_val_get(speed_bin_index, freq); @@ -281,7 +286,6 @@ unsigned long long mv_ddr_mem_sz_per_cs_get(void) mem_sz_per_cs = (unsigned long long)mem_size[iface_params->memory_size] * (unsigned long long)sphys / (unsigned long long)sphys_per_dunit; - return mem_sz_per_cs; } |