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arch/arm/src/lpc54xx: Fixes a few more Ethernet bring up bugs. Rx seems to work; Tx does not.

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This commit is contained in:
Gregory Nutt 2017-12-31 14:49:13 -06:00
parent b2adb4917f
commit f624c504d1
3 changed files with 46 additions and 30 deletions
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40
arch/arm/src/lpc54xx/chip/lpc54_ethernet.h
View File

@ -121,7 +121,7 @@
#define LPC54_ETH_DMA_INTR_STAT_OFFSET 0x1008 /* DMA interrupt status */
#define LPC54_ETH_DMA_DBG_STAT_OFFSET 0x100c /* DMA debug status */
#define LPC54_ETH_DMACH_CTRLn_OFFSET(n) (0x1100 + ((n) << 7))
#define LPC54_ETH_DMACH_OFFSET(n) (0x1100 + ((n) << 7))
#define LPC54_ETH_DMACH_CTRL_OFFSET 0x0000 /* DMA channel n control */
#define LPC54_ETH_DMACH_TX_CTRL_OFFSET 0x0004 /* DMA channel n transmit control */
@ -216,26 +216,26 @@
#define LPC54_ETH_DMA_INTR_STAT (LPC54_ETHERNET_BASE + LPC54_ETH_DMA_INTR_STAT_OFFSET)
#define LPC54_ETH_DMA_DBG_STAT (LPC54_ETHERNET_BASE + LPC54_ETH_DMA_DBG_STAT_OFFSET)
#define LPC54_ETH_DMACH_CTRL_BASE(n) (LPC54_ETHERNET_BASE + LPC54_ETH_DMACH_CTRLn_OFFSET(n))
#define LPC54_ETH_DMACH_BASE(n) (LPC54_ETHERNET_BASE + LPC54_ETH_DMACH_OFFSET(n))
#define LPC54_ETH_DMACH_CTRL(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_CTRL_OFFSET)
#define LPC54_ETH_DMACH_TX_CTRL(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_TX_CTRL_OFFSET)
#define LPC54_ETH_DMACH_RX_CTRL(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_RX_CTRL_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_LIST_ADDR(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_TXDESC_LIST_ADDR_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_LIST_ADDR(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_RXDESC_LIST_ADDR_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_TAIL_PTR(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_TXDESC_TAIL_PTR_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_TAIL_PTR(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_RXDESC_TAIL_PTR_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_RING_LENGTH(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_TXDESC_RING_LENGTH_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_RING_LENGTH(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_RXDESC_RING_LENGTH_OFFSET)
#define LPC54_ETH_DMACH_INT_EN(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_INT_EN_OFFSET)
#define LPC54_ETH_DMACH_RX_INT_WDTIMER(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_RX_INT_WDTIMER_OFFSET)
#define LPC54_ETH_DMACH_SLOT_FUNC_CTRL_STAT(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_SLOT_FUNC_CTRL_STAT_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_TXDESC(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_CUR_HST_TXDESC_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_RXDESC(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_CUR_HST_RXDESC_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_TXBUF(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_CUR_HST_TXBUF_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_RXBUF(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_CUR_HST_RXBUF_OFFSET)
#define LPC54_ETH_DMACH_STAT(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_STAT_OFFSET)
#define LPC54_ETH_DMACH_MISS_FRAME_CNT(n) (LPC54_ETH_DMACH_CTRL_BASE(n) + LPC54_ETH_DMACH_MISS_FRAME_CNT_OFFSET)
#define LPC54_ETH_DMACH_CTRL(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_CTRL_OFFSET)
#define LPC54_ETH_DMACH_TX_CTRL(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_TX_CTRL_OFFSET)
#define LPC54_ETH_DMACH_RX_CTRL(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_RX_CTRL_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_LIST_ADDR(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_TXDESC_LIST_ADDR_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_LIST_ADDR(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_RXDESC_LIST_ADDR_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_TAIL_PTR(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_TXDESC_TAIL_PTR_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_TAIL_PTR(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_RXDESC_TAIL_PTR_OFFSET)
#define LPC54_ETH_DMACH_TXDESC_RING_LENGTH(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_TXDESC_RING_LENGTH_OFFSET)
#define LPC54_ETH_DMACH_RXDESC_RING_LENGTH(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_RXDESC_RING_LENGTH_OFFSET)
#define LPC54_ETH_DMACH_INT_EN(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_INT_EN_OFFSET)
#define LPC54_ETH_DMACH_RX_INT_WDTIMER(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_RX_INT_WDTIMER_OFFSET)
#define LPC54_ETH_DMACH_SLOT_FUNC_CTRL_STAT(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_SLOT_FUNC_CTRL_STAT_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_TXDESC(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_CUR_HST_TXDESC_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_RXDESC(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_CUR_HST_RXDESC_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_TXBUF(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_CUR_HST_TXBUF_OFFSET)
#define LPC54_ETH_DMACH_CUR_HST_RXBUF(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_CUR_HST_RXBUF_OFFSET)
#define LPC54_ETH_DMACH_STAT(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_STAT_OFFSET)
#define LPC54_ETH_DMACH_MISS_FRAME_CNT(n) (LPC54_ETH_DMACH_BASE(n) + LPC54_ETH_DMACH_MISS_FRAME_CNT_OFFSET)
/* Register bit definitions *********************************************************************************/

32
arch/arm/src/lpc54xx/lpc54_ethernet.c
View File

@ -596,7 +596,7 @@ static int lpc54_eth_transmit(struct lpc54_ethdriver_s *priv,
DEBUGASSERT(priv->eth_dev.d_buf != 0 && priv->eth_dev.d_len > 0 &&
priv->eth_dev.d_len <= LPC54_BUFFER_SIZE &&
txring->tr_ndesc < txring->tr_inuse);
txring->tr_inuse < txring->tr_ndesc);
/* Fill the descriptor. */
@ -604,6 +604,9 @@ static int lpc54_eth_transmit(struct lpc54_ethdriver_s *priv,
buffer = priv->eth_dev.d_buf;
buflen = priv->eth_dev.d_len;
priv->eth_dev.d_buf = NULL;
priv->eth_dev.d_len = 0;
if (buflen <= LPC54_BUFFER_MAX)
{
/* Prepare the Tx descriptor for transmission */
@ -794,7 +797,9 @@ static int lpc54_eth_txpoll(struct net_driver_s *dev)
chan = lpc54_eth_getring(priv);
txring = &priv->eth_txring[chan];
(txring->tr_buffers)[txring->tr_supply] = (uint32_t *)priv->eth_dev.d_buf;
(txring->tr_buffers)[txring->tr_supply] =
(uint32_t *)priv->eth_dev.d_buf;
lpc54_eth_transmit(priv, chan);
@ -911,7 +916,9 @@ static void lpc54_eth_rxdisptch(struct lpc54_ethdriver_s *priv)
chan = lpc54_eth_getring(priv);
txring = &priv->eth_txring[chan];
(txring->tr_buffers)[txring->tr_supply] = (uint32_t *)priv->eth_dev.d_buf;
(txring->tr_buffers)[txring->tr_supply] =
(uint32_t *)priv->eth_dev.d_buf;
lpc54_eth_transmit(priv, chan);
}
@ -953,7 +960,9 @@ static void lpc54_eth_rxdisptch(struct lpc54_ethdriver_s *priv)
chan = lpc54_eth_getring(priv);
txring = &priv->eth_txring[chan];
(txring->tr_buffers)[txring->tr_supply] = (uint32_t *)priv->eth_dev.d_buf;
(txring->tr_buffers)[txring->tr_supply] =
(uint32_t *)priv->eth_dev.d_buf;
lpc54_eth_transmit(priv, chan);
}
@ -974,7 +983,9 @@ static void lpc54_eth_rxdisptch(struct lpc54_ethdriver_s *priv)
{
chan = lpc54_eth_getring(priv);
txring = &priv->eth_txring[chan];
(txring->tr_buffers)[txring->tr_supply] = (uint32_t *)priv->eth_dev.d_buf;
(txring->tr_buffers)[txring->tr_supply] =
(uint32_t *)priv->eth_dev.d_buf;
lpc54_eth_transmit(priv, chan);
}
@ -1801,7 +1812,10 @@ static int lpc54_eth_ifup(struct net_driver_s *dev)
}
/* Initialize Ethernet DMA ************************************************/
/* Reset DMA */
/* Reset DMA. Resets the logic and all internal registers of the OMA, MTL,
* and MAC. This bit is automatically cleared after the reset operation
* is complete in all Ethernet Block clock domains.
*/
regval = lpc54_getreg(LPC54_ETH_DMA_MODE);
regval |= ETH_DMA_MODE_SWR;
@ -2957,8 +2971,9 @@ int up_netinitialize(int intf)
#else
/* RMII interface.
*
* REF_CLK may be available in some implementations
* RX_ER is optional on switches
* REF_CLK may be available in some implementations. Clocking from
* PHY appears to be necessary for DMA reset operations.
* RX_ER is optional on switches.
*/
lpc54_gpio_config(GPIO_ENET_RXD0); /* Ethernet receive data 0-1 */
@ -2967,6 +2982,7 @@ int up_netinitialize(int intf)
lpc54_gpio_config(GPIO_ENET_TXD1);
lpc54_gpio_config(GPIO_ENET_RX_DV); /* Ethernet receive data valid */
lpc54_gpio_config(GPIO_ENET_TX_EN); /* Ethernet transmit data enable */
lpc54_gpio_config(GPIO_ENET_REF_CLK); /* PHY reference clock */
#endif
/* Enable clocking to the Ethernet peripheral */

4
configs/lpcxpresso-lpc54628/include/board.h
View File

@ -404,7 +404,7 @@
* P4_10-ENET_CRS_DV Ethernet receive data valid
* P4_13-ENET_TX_EN Ethernet transmit data enable
*
* P4_14-ENET_RX_CLK REF_CLK, Reference clock (Not used)
* P4_14-ENET_RX_CLK REF_CLK, Reference clock
* P2_26-ENET_PHY_RSTn nRST (Controlled by board logic)
*
* NOTE: You must set JP11 and JP12 to close 1-2 to enable Ethernet
@ -423,7 +423,7 @@
#define GPIO_ENET_RX_DV GPIO_ENET_RX_DV_2 /* P4.10 */
#define GPIO_ENET_TX_EN GPIO_ENET_TX_EN_2 /* P4.13 */
#define GPIO_ENET_RX_CLK GPIO_ENET_RX_CLK_2 /* P4.14 */
#define GPIO_ENET_REF_CLK GPIO_ENET_RX_CLK_2 /* P4.14 */
/****************************************************************************
* Public Types