Add support for overriding IO fixed values to control the pin state
based on the flash type.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
drivers/memory/renesas-rpc-if.c | 20 ++++++++++++++++++++
include/memory/renesas-rpc-if.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index 9695b2d3ae59..17bc604cdfff 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -325,6 +325,26 @@ static void rpcif_rzg2l_timing_adjust_sdr(struct rpcif_priv *rpc)
regmap_write(rpc->regmap, RPCIF_PHYADD, 0x80000032);
}
+int rpcif_set_iofv(struct device *dev, u32 val)
+{
+ struct rpcif_priv *rpc = dev_get_drvdata(dev);
+ int ret;
+
+ ret = pm_runtime_resume_and_get(dev);
+ if (ret)
+ return ret;
+
+ regmap_update_bits(rpc->regmap, RPCIF_CMNCR, RPCIF_CMNCR_IOFV(3),
+ RPCIF_CMNCR_IO0FV(val & 0x3) |
+ RPCIF_CMNCR_IO2FV((val >> 4) & 0x3) |
+ RPCIF_CMNCR_IO3FV((val >> 6) & 0x3));
+
+ pm_runtime_put(dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(rpcif_set_iofv);
+
int rpcif_hw_init(struct device *dev, bool hyperflash)
{
struct rpcif_priv *rpc = dev_get_drvdata(dev);
diff --git a/include/memory/renesas-rpc-if.h b/include/memory/renesas-rpc-if.h
index b8fa30fd6b50..124ca9c16a39 100644
--- a/include/memory/renesas-rpc-if.h
+++ b/include/memory/renesas-rpc-if.h
@@ -71,6 +71,7 @@ struct rpcif {
int rpcif_sw_init(struct rpcif *rpc, struct device *dev);
int rpcif_hw_init(struct device *dev, bool hyperflash);
+int rpcif_set_iofv(struct device *dev, u32 val);
void rpcif_prepare(struct device *dev, const struct rpcif_op *op, u64 *offs,
size_t *len);
int rpcif_manual_xfer(struct device *dev);
--
2.25.1
