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arch/arm/src/lpc54xx: Fix several more issues in bring-up of Ethernet driver. Still not fully functional.

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This commit is contained in:
Gregory Nutt
2017-12-31 17:16:21 -06:00
parent f624c504d1
commit fd10eaf1fb
3 changed files with 32 additions and 26 deletions
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arch/arm/src/lpc54xx/chip/lpc54_ethernet.h
+2 -2
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@@ -480,8 +480,8 @@
#define ETH_MTL_TXQ_OP_MODE_TSF (1 << 1) /* Bit 1: Transmit store and forward */ #define ETH_MTL_TXQ_OP_MODE_TSF (1 << 1) /* Bit 1: Transmit store and forward */
#define ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT (2) /* Bits 2-3: Tx Queue enable */ #define ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT (2) /* Bits 2-3: Tx Queue enable */
#define ETH_MTL_TXQ_OP_MODE_TXQEN_MASK (3 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT) #define ETH_MTL_TXQ_OP_MODE_TXQEN_MASK (3 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT)
# define ETH_MTL_TXQ_OP_MODE_TXQEN_ENABLE (0 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT) /* Not enabled */ # define ETH_MTL_TXQ_OP_MODE_TXQEN_DISABLE (0 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT) /* Not enabled */
# define ETH_MTL_TXQ_OP_MODE_TXQEN_DISABLE (2 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT) /* Enabled */ # define ETH_MTL_TXQ_OP_MODE_TXQEN_ENABLE (2 << ETH_MTL_TXQ_OP_MODE_TXQEN_SHIFT) /* Enabled */
#define ETH_MTL_TXQ_OP_MODE_TTC_SHIFT (4) /* Bits 4-6: Transmit threshold control */ #define ETH_MTL_TXQ_OP_MODE_TTC_SHIFT (4) /* Bits 4-6: Transmit threshold control */
#define ETH_MTL_TXQ_OP_MODE_TTC_MASK (7 << ETH_MTL_TXQ_OP_MODE_TTC_SHIFT) #define ETH_MTL_TXQ_OP_MODE_TTC_MASK (7 << ETH_MTL_TXQ_OP_MODE_TTC_SHIFT)
# define ETH_MTL_TXQ_OP_MODE_TTC_32 (0 << ETH_MTL_TXQ_OP_MODE_TTC_SHIFT) # define ETH_MTL_TXQ_OP_MODE_TTC_32 (0 << ETH_MTL_TXQ_OP_MODE_TTC_SHIFT)
arch/arm/src/lpc54xx/lpc54_ethernet.c
+23 -23
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@@ -240,13 +240,11 @@
#define LPC54_ABNORM_INTMASK (ETH_DMACH_INT_TS | ETH_DMACH_INT_RBU | \ #define LPC54_ABNORM_INTMASK (ETH_DMACH_INT_TS | ETH_DMACH_INT_RBU | \
ETH_DMACH_INT_RS | ETH_DMACH_INT_RWT | \ ETH_DMACH_INT_RS | ETH_DMACH_INT_RWT | \
ETH_DMACH_INT_FBE | ETH_DMACH_INT_ETI | \ ETH_DMACH_INT_FBE | ETH_DMACH_INT_AI)
ETH_DMACH_INT_AI) #define LPC54_TXERR_INTMASK (ETH_DMACH_INT_TS)
#define LPC54_TXERR_INTMASK (ETH_DMACH_INT_TS | ETH_DMACH_INT_ETI)
#define LPC54_RXERR_INTMASK (ETH_DMACH_INT_RBU | ETH_DMACH_INT_RS | \ #define LPC54_RXERR_INTMASK (ETH_DMACH_INT_RBU | ETH_DMACH_INT_RS | \
ETH_DMACH_INT_RWT) ETH_DMACH_INT_RWT)
#define LPC54_NORM_INTMASK (ETH_DMACH_INT_TI | ETH_DMACH_INT_TBU | \ #define LPC54_NORM_INTMASK (ETH_DMACH_INT_TI | ETH_DMACH_INT_RI | \
ETH_DMACH_INT_RI | ETH_DMACH_INT_ERI | \
ETH_DMACH_INT_NI) ETH_DMACH_INT_NI)
/* This is a helper pointer for accessing the contents of the Ethernet /* This is a helper pointer for accessing the contents of the Ethernet
@@ -1271,15 +1269,17 @@ static void lpc54_eth_channel_work(struct lpc54_ethdriver_s *priv,
{ {
uintptr_t regaddr; uintptr_t regaddr;
uint32_t status; uint32_t status;
uint32_t pending;
/* Read the DMA status register for this channel */ /* Read the DMA status register for this channel */
regaddr = LPC54_ETH_DMACH_STAT(chan); regaddr = LPC54_ETH_DMACH_STAT(chan);
status = lpc54_getreg(regaddr); status = lpc54_getreg(regaddr);
pending = status & lpc54_getreg(LPC54_ETH_DMACH_INT_EN(chan));
/* Check for abnormal interrupts */ /* Check for abnormal interrupts */
if ((status & LPC54_ABNORM_INTMASK) != 0) if ((pending & LPC54_ABNORM_INTMASK) != 0)
{ {
/* Acknowledge the normal receive interrupt */ /* Acknowledge the normal receive interrupt */
@@ -1287,32 +1287,32 @@ static void lpc54_eth_channel_work(struct lpc54_ethdriver_s *priv,
/* Handle the incoming packet */ /* Handle the incoming packet */
nerr("ERROR: Abnormal interrupt received: %08lx\n", nerr("ERROR: Abnormal interrupt received: %08lx (%08lx)\n",
(unsigned long)status); (unsigned long)pending, (unsigned long)status);
status &= ~LPC54_ABNORM_INTMASK;
/* Check for Tx/Rx related errors and update statistics */ /* Check for Tx/Rx related errors and update statistics */
if ((status & LPC54_RXERR_INTMASK) != 0) if ((pending & LPC54_RXERR_INTMASK) != 0)
{ {
NETDEV_RXERRORS(priv->eth_dev); NETDEV_RXERRORS(priv->eth_dev);
} }
if ((status & LPC54_TXERR_INTMASK) != 0) if ((pending & LPC54_TXERR_INTMASK) != 0)
{ {
NETDEV_TXERRORS(priv->eth_dev); NETDEV_TXERRORS(priv->eth_dev);
} }
pending &= ~LPC54_ABNORM_INTMASK;
} }
/* Check for a receive interrupt */ /* Check for a receive interrupt */
if ((status & ETH_DMACH_INT_RI) != 0) if ((pending & ETH_DMACH_INT_RI) != 0)
{ {
/* Acknowledge the normal receive interrupt */ /* Acknowledge the normal receive interrupt */
lpc54_putreg(ETH_DMACH_INT_RI | ETH_DMACH_INT_NI, regaddr); lpc54_putreg(ETH_DMACH_INT_RI | ETH_DMACH_INT_NI, regaddr);
status &= ~(ETH_DMACH_INT_RI | ETH_DMACH_INT_NI); pending &= ~(ETH_DMACH_INT_RI | ETH_DMACH_INT_NI);
/* Update statistics */ /* Update statistics */
@@ -1325,12 +1325,12 @@ static void lpc54_eth_channel_work(struct lpc54_ethdriver_s *priv,
/* Check for a transmit interrupt */ /* Check for a transmit interrupt */
if ((status & ETH_DMACH_INT_TI) != 0) if ((pending & ETH_DMACH_INT_TI) != 0)
{ {
/* Acknowledge the normal receive interrupt */ /* Acknowledge the normal receive interrupt */
lpc54_putreg(ETH_DMACH_INT_TI | ETH_DMACH_INT_NI, regaddr); lpc54_putreg(ETH_DMACH_INT_TI | ETH_DMACH_INT_NI, regaddr);
status &= ~(ETH_DMACH_INT_TI | ETH_DMACH_INT_NI); pending &= ~(ETH_DMACH_INT_TI | ETH_DMACH_INT_NI);
/* Handle the Tx completion event. Reclaim the completed Tx /* Handle the Tx completion event. Reclaim the completed Tx
* descriptors, free packet buffers, and check if we can start a new * descriptors, free packet buffers, and check if we can start a new
@@ -1340,13 +1340,13 @@ static void lpc54_eth_channel_work(struct lpc54_ethdriver_s *priv,
lpc54_eth_txdone(priv, chan); lpc54_eth_txdone(priv, chan);
} }
/* Check for unhandled interrupts */ /* Check for unhandled interrupts (shouldn't be any) */
if (status != 0) if (pending != 0)
{ {
nwarn("WARNING: Unhandled interrupts: %08lx\n", nwarn("WARNING: Unhandled interrupts: %08lx (%08lx)\n",
(unsigned int)status); (unsigned long)pending, (unsigned long)status);
lpc54_putreg(status, regaddr); lpc54_putreg(pending, regaddr);
} }
} }
@@ -1831,7 +1831,7 @@ static int lpc54_eth_ifup(struct net_driver_s *dev)
for (i = 0; i < LPC54_NRINGS; i++) for (i = 0; i < LPC54_NRINGS; i++)
{ {
base = LPC54_ETH_DMACH_CTRL_BASE(i); base = LPC54_ETH_DMACH_BASE(i);
lpc54_putreg(LPC54_PBLx8, base + LPC54_ETH_DMACH_CTRL_OFFSET); lpc54_putreg(LPC54_PBLx8, base + LPC54_ETH_DMACH_CTRL_OFFSET);
regval = lpc54_getreg(base + LPC54_ETH_DMACH_TX_CTRL_OFFSET); regval = lpc54_getreg(base + LPC54_ETH_DMACH_TX_CTRL_OFFSET);
@@ -1926,7 +1926,7 @@ static int lpc54_eth_ifup(struct net_driver_s *dev)
lpc54_putreg(regval, LPC54_ETH_MAC_ADDR_LOW); lpc54_putreg(regval, LPC54_ETH_MAC_ADDR_LOW);
regval = ((uint32_t)mptr[5] << 8) | ((uint32_t)mptr[4]); regval = ((uint32_t)mptr[5] << 8) | ((uint32_t)mptr[4]);
lpc54_putreg(regval, LPC54_ETH_MAC_ADDR_LOW); lpc54_putreg(regval, LPC54_ETH_MAC_ADDR_HIGH);
/* Set the receive address filter */ /* Set the receive address filter */
configs/lpcxpresso-lpc54628/README.txt
+6
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@@ -242,6 +242,12 @@ Configurations
before you get the NSH prompt. If the network cable is unplugged, before you get the NSH prompt. If the network cable is unplugged,
this can mean a significant delay before you see the prompt. this can mean a significant delay before you see the prompt.
5. In this configuration, the network network does not come up
automatically after it has been initialized. You will need to
explicitly bring the network up from the NSH command line:
nsh> ifup eth0
nsh: nsh:
Configures the NuttShell (nsh) application located at examples/nsh. Configures the NuttShell (nsh) application located at examples/nsh.