mtd: spi: renesas: Add R-Car Gen4 support
Support RPC SPI on R-Car Gen4 R8A779F0 S4 and R8A779G0 V4H SoCs.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Squash S4 and V4H patches, fix brackets around STRTIM2]
diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c
index 07ff2d2..af1b368 100644
--- a/drivers/spi/renesas_rpc_spi.c
+++ b/drivers/spi/renesas_rpc_spi.c
@@ -140,6 +140,7 @@
#define PRC_PHYCNT_EXDS BIT(21)
#define RPC_PHYCNT_OCT BIT(20)
#define RPC_PHYCNT_STRTIM(v) (((v) & 0x7) << 15)
+#define RPC_PHYCNT_STRTIM2(v) ((((v) & 0x7) << 15) | (((v) & 0x8) << 24))
#define RPC_PHYCNT_WBUF2 BIT(4)
#define RPC_PHYCNT_WBUF BIT(2)
#define RPC_PHYCNT_MEM(v) (((v) & 0x3) << 0)
@@ -212,9 +213,13 @@
* 0: On H3 ES1.x (not supported in mainline U-Boot)
* 6: On M3 ES1.x
* 7: On other R-Car Gen3
+ * 15: On R-Car Gen4
*/
if (cpu_type == RMOBILE_CPU_TYPE_R8A7796 && rmobile_get_cpu_rev_integer() == 1)
return RPC_PHYCNT_STRTIM(6);
+ else if (cpu_type == RMOBILE_CPU_TYPE_R8A779F0 ||
+ cpu_type == RMOBILE_CPU_TYPE_R8A779G0)
+ return RPC_PHYCNT_STRTIM2(15);
else
#endif
return RPC_PHYCNT_STRTIM(7);