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path: root/drivers/memory/pl172.c
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Diffstat (limited to 'drivers/memory/pl172.c')
-rw-r--r--drivers/memory/pl172.c26
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/memory/pl172.c b/drivers/memory/pl172.c
index b2ef6072fbf4..ff57195b4e37 100644
--- a/drivers/memory/pl172.c
+++ b/drivers/memory/pl172.c
@@ -118,7 +118,8 @@ static int pl172_setup_static(struct amba_device *adev,
if (of_property_read_bool(np, "mpmc,extended-wait"))
cfg |= MPMC_STATIC_CFG_EW;
- if (of_property_read_bool(np, "mpmc,buffer-enable"))
+ if (amba_part(adev) == 0x172 &&
+ of_property_read_bool(np, "mpmc,buffer-enable"))
cfg |= MPMC_STATIC_CFG_B;
if (of_property_read_bool(np, "mpmc,write-protect"))
@@ -190,6 +191,8 @@ static int pl172_parse_cs_config(struct amba_device *adev,
}
static const char * const pl172_revisions[] = {"r1", "r2", "r2p3", "r2p4"};
+static const char * const pl175_revisions[] = {"r1"};
+static const char * const pl176_revisions[] = {"r0"};
static int pl172_probe(struct amba_device *adev, const struct amba_id *id)
{
@@ -202,6 +205,12 @@ static int pl172_probe(struct amba_device *adev, const struct amba_id *id)
if (amba_part(adev) == 0x172) {
if (amba_rev(adev) < ARRAY_SIZE(pl172_revisions))
rev = pl172_revisions[amba_rev(adev)];
+ } else if (amba_part(adev) == 0x175) {
+ if (amba_rev(adev) < ARRAY_SIZE(pl175_revisions))
+ rev = pl175_revisions[amba_rev(adev)];
+ } else if (amba_part(adev) == 0x176) {
+ if (amba_rev(adev) < ARRAY_SIZE(pl176_revisions))
+ rev = pl176_revisions[amba_rev(adev)];
}
dev_info(dev, "ARM PL%x revision %s\n", amba_part(adev), rev);
@@ -278,9 +287,20 @@ static int pl172_remove(struct amba_device *adev)
}
static const struct amba_id pl172_ids[] = {
+ /* PrimeCell MPMC PL172, EMC found on NXP LPC18xx and LPC43xx */
{
- .id = 0x07341172,
- .mask = 0xffffffff,
+ .id = 0x07041172,
+ .mask = 0x3f0fffff,
+ },
+ /* PrimeCell MPMC PL175, EMC found on NXP LPC32xx */
+ {
+ .id = 0x07041175,
+ .mask = 0x3f0fffff,
+ },
+ /* PrimeCell MPMC PL176 */
+ {
+ .id = 0x89041176,
+ .mask = 0xff0fffff,
},
{ 0, 0 },
};