[PATCH v2 05/10] net: hisilicon: HI13X1_GMAX need dreq reset at first
From: Jiangfeng Xiao
Date: Mon Jul 08 2019 - 23:32:57 EST
HI13X1_GMAC delete request for soft reset at first,
otherwise, the subsequent initialization will not
take effect.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hip04_eth.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index fe61b01..19d8cfd 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -16,6 +16,8 @@
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
+#define SC_PPE_RESET_DREQ 0x026C
+
#define PPE_CFG_RX_ADDR 0x100
#define PPE_CFG_POOL_GRP 0x300
#define PPE_CFG_RX_BUF_SIZE 0x400
@@ -61,6 +63,8 @@
#define PPE_HIS_RX_PKT_CNT 0x804
+#define RESET_DREQ_ALL 0xffffffff
+
/* REG_INTERRUPT */
#define RCV_INT BIT(10)
#define RCV_NOBUF BIT(8)
@@ -168,6 +172,9 @@ struct rx_desc {
struct hip04_priv {
void __iomem *base;
+#if defined(CONFIG_HI13X1_GMAC)
+ void __iomem *sysctrl_base;
+#endif
int phy_mode;
int chan;
unsigned int port;
@@ -244,6 +251,13 @@ static void hip04_config_port(struct net_device *ndev, u32 speed, u32 duplex)
writel_relaxed(val, priv->base + GE_MODE_CHANGE_REG);
}
+static void hip04_reset_dreq(struct hip04_priv *priv)
+{
+#if defined(CONFIG_HI13X1_GMAC)
+ writel_relaxed(RESET_DREQ_ALL, priv->sysctrl_base + SC_PPE_RESET_DREQ);
+#endif
+}
+
static void hip04_reset_ppe(struct hip04_priv *priv)
{
u32 val, tmp, timeout = 0;
@@ -853,6 +867,15 @@ static int hip04_mac_probe(struct platform_device *pdev)
goto init_fail;
}
+#if defined(CONFIG_HI13X1_GMAC)
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ priv->sysctrl_base = devm_ioremap_resource(d, res);
+ if (IS_ERR(priv->sysctrl_base)) {
+ ret = PTR_ERR(priv->sysctrl_base);
+ goto init_fail;
+ }
+#endif
+
ret = of_parse_phandle_with_fixed_args(node, "port-handle", 2, 0, &arg);
if (ret < 0) {
dev_warn(d, "no port-handle\n");
@@ -921,6 +944,7 @@ static int hip04_mac_probe(struct platform_device *pdev)
ndev->irq = irq;
netif_napi_add(ndev, &priv->napi, hip04_rx_poll, NAPI_POLL_WEIGHT);
+ hip04_reset_dreq(priv);
hip04_reset_ppe(priv);
if (priv->phy_mode == PHY_INTERFACE_MODE_MII)
hip04_config_port(ndev, SPEED_100, DUPLEX_FULL);
--
1.8.5.6