drivers:ufs: fix hynix ufs bug with quirk on hi36xx SoC
Hynix ufs has deviations on hi36xx platform which will result
in ufs bursts transfer failures at a very low probability.
To fix the problem, the Hynix device must set the register
VS_DebugSaveConfigTime to 0x10, which will set time reference
for SaveConfigTime is 250 ns. The time reference for SaveConfigTime
is 40 ns by default.
Signed-off-by: fengbaopeng <fengbaopeng@hisilicon.com>
diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c
index d513d0a..254866f 100644
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -705,11 +705,27 @@
}
}
+static void ufs_get_device_info(struct ufs_dev_desc *card_data)
+{
+ uint8_t desc_buf[DESC_DEVICE_MAX_SIZE];
+
+ ufs_query(QUERY_READ_DESC, DESC_TYPE_DEVICE, 0, 0,
+ (uintptr_t)desc_buf, DESC_DEVICE_MAX_SIZE);
+
+ /*
+ * getting vendor (manufacturerID) and Bank Index in big endian
+ * format
+ */
+ card_data->wmanufacturerid = (uint16_t)((desc_buf[DEVICE_DESC_PARAM_MANF_ID] << 8) |
+ (desc_buf[DEVICE_DESC_PARAM_MANF_ID + 1]));
+}
+
int ufs_init(const ufs_ops_t *ops, ufs_params_t *params)
{
int result;
unsigned int data;
uic_cmd_t cmd;
+ struct ufs_dev_desc card = {0};
assert((params != NULL) &&
(params->reg_base != 0) &&
@@ -750,10 +766,17 @@
ops->phy_init(&ufs_params);
result = ufshc_link_startup(ufs_params.reg_base);
assert(result == 0);
+
+ ufs_enum();
+
+ ufs_get_device_info(&card);
+ if (card.wmanufacturerid == UFS_VENDOR_SKHYNIX) {
+ ufs_params.flags |= UFS_FLAGS_VENDOR_SKHYNIX;
+ }
+
ops->phy_set_pwr_mode(&ufs_params);
}
- ufs_enum();
(void)result;
return 0;
}