From: "Jan Petrous (OSS)" <jan.petrous@xxxxxxxxxxx>
Add support for CSR clock range up to 800 MHz.
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Jan Petrous (OSS) <jan.petrous@xxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/common.h | 2 ++
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++++
include/linux/stmmac.h | 2 ++
3 files changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 1367fa5c9b8e..70d601f45481 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -257,6 +257,8 @@ struct stmmac_safety_stats {
#define CSR_F_150M 150000000
#define CSR_F_250M 250000000
#define CSR_F_300M 300000000
+#define CSR_F_500M 500000000
+#define CSR_F_800M 800000000
#define MAC_CSR_H_FRQ_MASK 0x20
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 3cdc3910f3a0..8304f82b3a50 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -325,6 +325,10 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
priv->clk_csr = STMMAC_CSR_150_250M;
else if ((clk_rate >= CSR_F_250M) && (clk_rate <= CSR_F_300M))
priv->clk_csr = STMMAC_CSR_250_300M;
+ else if ((clk_rate >= CSR_F_300M) && (clk_rate < CSR_F_500M))
+ priv->clk_csr = STMMAC_CSR_300_500M;
+ else if ((clk_rate >= CSR_F_500M) && (clk_rate < CSR_F_800M))
+ priv->clk_csr = STMMAC_CSR_500_800M;
}
if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I) {
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 75cbfb576358..865d0fe26f98 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -34,6 +34,8 @@
#define STMMAC_CSR_35_60M 0x3 /* MDC = clk_scr_i/26 */
#define STMMAC_CSR_150_250M 0x4 /* MDC = clk_scr_i/102 */
#define STMMAC_CSR_250_300M 0x5 /* MDC = clk_scr_i/124 */
+#define STMMAC_CSR_300_500M 0x6 /* MDC = clk_scr_i/204 */
+#define STMMAC_CSR_500_800M 0x7 /* MDC = clk_scr_i/324 */
/* MTL algorithms identifiers */
#define MTL_TX_ALGORITHM_WRR 0x0
--
2.47.0
