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Message-Id: <a865956c2273e28a40428e6686918ad26c800a33.1689215889.git.chenfeiyang@loongson.cn>
Date: Thu, 13 Jul 2023 10:48:52 +0800
From: Feiyang Chen <chenfeiyang@...ngson.cn>
To: andrew@...n.ch,
hkallweit1@...il.com,
peppe.cavallaro@...com,
alexandre.torgue@...s.st.com,
joabreu@...opsys.com,
chenhuacai@...ngson.cn
Cc: Feiyang Chen <chenfeiyang@...ngson.cn>,
linux@...linux.org.uk,
dongbiao@...ngson.cn,
loongson-kernel@...ts.loongnix.cn,
netdev@...r.kernel.org,
loongarch@...ts.linux.dev,
chris.chenfeiyang@...il.com
Subject: [RFC PATCH 07/10] net: stmmac: Add Loongson HWIF entry
Add a new entry to HWIF table for Loongson.
Signed-off-by: Feiyang Chen <chenfeiyang@...ngson.cn>
---
drivers/net/ethernet/stmicro/stmmac/common.h | 3 ++
.../ethernet/stmicro/stmmac/dwmac1000_dma.c | 6 +++
drivers/net/ethernet/stmicro/stmmac/hwif.c | 48 ++++++++++++++++++-
.../net/ethernet/stmicro/stmmac/stmmac_main.c | 25 ++++++----
include/linux/stmmac.h | 1 +
5 files changed, 73 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 4ad692c4116c..45c49c7a9ccb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -29,11 +29,13 @@
/* Synopsys Core versions */
#define DWMAC_CORE_3_40 0x34
#define DWMAC_CORE_3_50 0x35
+#define DWMAC_CORE_3_70 0x37
#define DWMAC_CORE_4_00 0x40
#define DWMAC_CORE_4_10 0x41
#define DWMAC_CORE_5_00 0x50
#define DWMAC_CORE_5_10 0x51
#define DWMAC_CORE_5_20 0x52
+#define DWLGMAC_CORE_1_00 0x10
#define DWXGMAC_CORE_2_10 0x21
#define DWXLGMAC_CORE_2_00 0x20
@@ -546,6 +548,7 @@ int dwmac1000_setup(struct stmmac_priv *priv);
int dwmac4_setup(struct stmmac_priv *priv);
int dwxgmac2_setup(struct stmmac_priv *priv);
int dwxlgmac2_setup(struct stmmac_priv *priv);
+int dwmac_loongson_setup(struct stmmac_priv *priv);
void stmmac_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],
unsigned int high, unsigned int low);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 7aa450d6a81a..5da5f111d7e0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -172,6 +172,12 @@ static void dwmac1000_dma_init_rx(struct stmmac_priv *priv,
chan * DMA_CHAN_OFFSET);
writel(upper_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR_HI +
chan * DMA_CHAN_OFFSET);
+ if (priv->plat->has_lgmac) {
+ writel(upper_32_bits(dma_rx_phy),
+ ioaddr + DMA_RCV_BASE_ADDR_SHADOW1);
+ writel(upper_32_bits(dma_rx_phy),
+ ioaddr + DMA_RCV_BASE_ADDR_SHADOW2);
+ }
} else {
/* RX descriptor base address list must be written into DMA CSR3 */
writel(lower_32_bits(dma_rx_phy), ioaddr + DMA_RCV_BASE_ADDR +
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.c b/drivers/net/ethernet/stmicro/stmmac/hwif.c
index b8ba8f2d8041..b376ac4f80d5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.c
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.c
@@ -58,7 +58,8 @@ static int stmmac_dwmac1_quirks(struct stmmac_priv *priv)
dev_info(priv->device, "Enhanced/Alternate descriptors\n");
/* GMAC older than 3.50 has no extended descriptors */
- if (priv->synopsys_id >= DWMAC_CORE_3_50) {
+ if (priv->synopsys_id >= DWMAC_CORE_3_50 ||
+ priv->plat->has_lgmac) {
dev_info(priv->device, "Enabled extended descriptors\n");
priv->extend_desc = 1;
} else {
@@ -104,6 +105,7 @@ static const struct stmmac_hwif_entry {
bool gmac;
bool gmac4;
bool xgmac;
+ bool lgmac;
u32 min_id;
u32 dev_id;
const struct stmmac_regs_off regs;
@@ -122,6 +124,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = false,
.xgmac = false,
+ .lgmac = false,
.min_id = 0,
.regs = {
.ptp_off = PTP_GMAC3_X_OFFSET,
@@ -140,6 +143,7 @@ static const struct stmmac_hwif_entry {
.gmac = true,
.gmac4 = false,
.xgmac = false,
+ .lgmac = false,
.min_id = 0,
.regs = {
.ptp_off = PTP_GMAC3_X_OFFSET,
@@ -158,6 +162,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = true,
.xgmac = false,
+ .lgmac = false,
.min_id = 0,
.regs = {
.ptp_off = PTP_GMAC4_OFFSET,
@@ -176,6 +181,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = true,
.xgmac = false,
+ .lgmac = false,
.min_id = DWMAC_CORE_4_00,
.regs = {
.ptp_off = PTP_GMAC4_OFFSET,
@@ -194,6 +200,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = true,
.xgmac = false,
+ .lgmac = false,
.min_id = DWMAC_CORE_4_10,
.regs = {
.ptp_off = PTP_GMAC4_OFFSET,
@@ -212,6 +219,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = true,
.xgmac = false,
+ .lgmac = false,
.min_id = DWMAC_CORE_5_10,
.regs = {
.ptp_off = PTP_GMAC4_OFFSET,
@@ -230,6 +238,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = false,
.xgmac = true,
+ .lgmac = false,
.min_id = DWXGMAC_CORE_2_10,
.dev_id = DWXGMAC_ID,
.regs = {
@@ -249,6 +258,7 @@ static const struct stmmac_hwif_entry {
.gmac = false,
.gmac4 = false,
.xgmac = true,
+ .lgmac = false,
.min_id = DWXLGMAC_CORE_2_00,
.dev_id = DWXLGMAC_ID,
.regs = {
@@ -264,6 +274,42 @@ static const struct stmmac_hwif_entry {
.mmc = &dwxgmac_mmc_ops,
.setup = dwxlgmac2_setup,
.quirks = stmmac_dwxlgmac_quirks,
+ }, {
+ .gmac = true,
+ .gmac4 = false,
+ .xgmac = false,
+ .lgmac = true,
+ .min_id = DWLGMAC_CORE_1_00,
+ .regs = {
+ .ptp_off = PTP_GMAC3_X_OFFSET,
+ .mmc_off = MMC_GMAC3_X_OFFSET,
+ },
+ .desc = NULL,
+ .dma = &dwmac1000_dma_ops,
+ .mac = &dwmac1000_ops,
+ .hwtimestamp = &stmmac_ptp,
+ .mode = NULL,
+ .tc = NULL,
+ .setup = dwmac_loongson_setup,
+ .quirks = stmmac_dwmac1_quirks,
+ }, {
+ .gmac = true,
+ .gmac4 = false,
+ .xgmac = false,
+ .lgmac = true,
+ .min_id = DWMAC_CORE_3_50,
+ .regs = {
+ .ptp_off = PTP_GMAC3_X_OFFSET,
+ .mmc_off = MMC_GMAC3_X_OFFSET,
+ },
+ .desc = NULL,
+ .dma = &dwmac1000_dma_ops,
+ .mac = &dwmac1000_ops,
+ .hwtimestamp = &stmmac_ptp,
+ .mode = NULL,
+ .tc = NULL,
+ .setup = dwmac1000_setup,
+ .quirks = stmmac_dwmac1_quirks,
},
};
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 2e95568b1e4a..59e9b61315bb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3494,17 +3494,21 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
enum request_irq_err irq_err;
+ unsigned long flags = 0;
cpumask_t cpu_mask;
int irq_idx = 0;
char *int_name;
int ret;
int i;
+ if (priv->plat->has_lgmac)
+ flags |= IRQF_TRIGGER_RISING;
+
/* For common interrupt */
int_name = priv->int_name_mac;
sprintf(int_name, "%s:%s", dev->name, "mac");
ret = request_irq(dev->irq, stmmac_mac_interrupt,
- 0, int_name, dev);
+ flags, int_name, dev);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc mac MSI %d (error: %d)\n",
@@ -3521,7 +3525,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s", dev->name, "wol");
ret = request_irq(priv->wol_irq,
stmmac_mac_interrupt,
- 0, int_name, dev);
+ flags, int_name, dev);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc wol MSI %d (error: %d)\n",
@@ -3539,7 +3543,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s", dev->name, "lpi");
ret = request_irq(priv->lpi_irq,
stmmac_mac_interrupt,
- 0, int_name, dev);
+ flags, int_name, dev);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc lpi MSI %d (error: %d)\n",
@@ -3557,7 +3561,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s", dev->name, "safety-ce");
ret = request_irq(priv->sfty_ce_irq,
stmmac_safety_interrupt,
- 0, int_name, dev);
+ flags, int_name, dev);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc sfty ce MSI %d (error: %d)\n",
@@ -3575,7 +3579,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s", dev->name, "safety-ue");
ret = request_irq(priv->sfty_ue_irq,
stmmac_safety_interrupt,
- 0, int_name, dev);
+ flags, int_name, dev);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc sfty ue MSI %d (error: %d)\n",
@@ -3596,7 +3600,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s-%d", dev->name, "rx", i);
ret = request_irq(priv->rx_irq[i],
stmmac_msi_intr_rx,
- 0, int_name, &priv->dma_conf.rx_queue[i]);
+ flags, int_name, &priv->dma_conf.rx_queue[i]);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc rx-%d MSI %d (error: %d)\n",
@@ -3621,7 +3625,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev)
sprintf(int_name, "%s:%s-%d", dev->name, "tx", i);
ret = request_irq(priv->tx_irq[i],
stmmac_msi_intr_tx,
- 0, int_name, &priv->dma_conf.tx_queue[i]);
+ flags, int_name, &priv->dma_conf.tx_queue[i]);
if (unlikely(ret < 0)) {
netdev_err(priv->dev,
"%s: alloc tx-%d MSI %d (error: %d)\n",
@@ -6045,8 +6049,10 @@ static u16 stmmac_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev)
{
int gso = skb_shinfo(skb)->gso_type;
+ struct stmmac_priv *priv = netdev_priv(dev);
- if (gso & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6 | SKB_GSO_UDP_L4)) {
+ if ((gso & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6 | SKB_GSO_UDP_L4)) ||
+ priv->plat->has_lgmac) {
/*
* There is no way to determine the number of TSO/USO
* capable Queues. Let's use always the Queue 0
@@ -6924,7 +6930,8 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
* riwt_off field from the platform.
*/
if (((priv->synopsys_id >= DWMAC_CORE_3_50) ||
- (priv->plat->has_xgmac)) && (!priv->plat->riwt_off)) {
+ (priv->plat->has_xgmac) || (priv->plat->has_lgmac)) &&
+ (!priv->plat->riwt_off)) {
priv->use_riwt = 1;
dev_info(priv->device,
"Enable RX Mitigation via HW Watchdog Timer\n");
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index f9af24f760d4..8ee1d8c7827f 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -341,6 +341,7 @@ struct plat_stmmacenet_data {
bool sph_disable;
bool serdes_up_after_phy_linkup;
const struct dwmac4_addrs *dwmac4_addrs;
+ int has_lgmac;
bool dwmac_is_loongson;
const struct dwmac_regs *dwmac_regs;
};
--
2.39.3
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