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Diffstat (limited to 'cpu/ppc4xx/4xx_enet.c')
-rw-r--r--cpu/ppc4xx/4xx_enet.c408
1 files changed, 116 insertions, 292 deletions
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
index 47d8abc..01712b0 100644
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -121,11 +121,62 @@
* Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
* Interrupt Controller).
*-----------------------------------------------------------------------------*/
-#define MAL_UIC_ERR ( UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
-#define MAL_UIC_DEF (UIC_MAL_RXEOB | MAL_UIC_ERR)
-#define EMAC_UIC_DEF UIC_ENET
-#define EMAC_UIC_DEF1 UIC_ENET1
-#define SEL_UIC_DEF(p) (p ? UIC_ENET1 : UIC_ENET )
+#define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev) * VECNUM_ETH1_OFFS))
+
+#if defined(CONFIG_HAS_ETH3)
+#if !defined(CONFIG_440GX)
+#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
+ UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
+#else
+/* Unfortunately 440GX spreads EMAC interrupts on multiple UIC's */
+#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
+#define UIC_ETHxB (UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
+#endif /* !defined(CONFIG_440GX) */
+#elif defined(CONFIG_HAS_ETH2)
+#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
+ UIC_MASK(ETH_IRQ_NUM(2)))
+#elif defined(CONFIG_HAS_ETH1)
+#define UIC_ETHx (UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
+#else
+#define UIC_ETHx UIC_MASK(ETH_IRQ_NUM(0))
+#endif
+
+/*
+ * Define a default version for UIC_ETHxB for non 440GX so that we can
+ * use common code for all 4xx variants
+ */
+#if !defined(UIC_ETHxB)
+#define UIC_ETHxB 0
+#endif
+
+#define UIC_MAL_SERR UIC_MASK(VECNUM_MAL_SERR)
+#define UIC_MAL_TXDE UIC_MASK(VECNUM_MAL_TXDE)
+#define UIC_MAL_RXDE UIC_MASK(VECNUM_MAL_RXDE)
+#define UIC_MAL_TXEOB UIC_MASK(VECNUM_MAL_TXEOB)
+#define UIC_MAL_RXEOB UIC_MASK(VECNUM_MAL_RXEOB)
+
+#define MAL_UIC_ERR (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
+#define MAL_UIC_DEF (UIC_MAL_RXEOB | MAL_UIC_ERR)
+
+/*
+ * We have 3 different interrupt types:
+ * - MAL interrupts indicating successful transfer
+ * - MAL error interrupts indicating MAL related errors
+ * - EMAC interrupts indicating EMAC related errors
+ *
+ * All those interrupts can be on different UIC's, but since
+ * now at least all interrupts from one type are on the same
+ * UIC. Only exception is 440GX where the EMAC interrupts are
+ * spread over two UIC's!
+ */
+#define UIC_BASE_MAL (UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_TXEOB) * 0x10))
+#define UIC_BASE_MAL_ERR (UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_SERR) * 0x10))
+#define UIC_BASE_EMAC (UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
+#if defined(CONFIG_440GX)
+#define UIC_BASE_EMAC_B (UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(2)) * 0x10))
+#else
+#define UIC_BASE_EMAC_B (UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
+#endif
#undef INFO_4XX_ENET
@@ -165,9 +216,6 @@
/*-----------------------------------------------------------------------------+
* Global variables. TX and RX descriptors and buffers.
*-----------------------------------------------------------------------------*/
-/* IER globals */
-static uint32_t mal_ier;
-
#if !defined(CONFIG_NET_MULTI)
struct eth_device *emac0_dev = NULL;
#endif
@@ -199,12 +247,6 @@ struct eth_device *emac0_dev = NULL;
#define CONFIG_EMAC_NR_START 0
#endif
-#if defined(CONFIG_405EX) || defined(CONFIG_440EPX)
-#define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev)))
-#else
-#define ETH_IRQ_NUM(dev) (VECNUM_ETH0 + ((dev) * 2))
-#endif
-
#define MAL_RX_DESC_SIZE 2048
#define MAL_TX_DESC_SIZE 2048
#define MAL_ALLOC_SIZE (MAL_TX_DESC_SIZE + MAL_RX_DESC_SIZE)
@@ -1434,59 +1476,17 @@ static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr,
}
}
-
-#if defined (CONFIG_440) || defined(CONFIG_405EX)
-
-#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
-/*
- * Hack: On 440SP all enet irq sources are located on UIC1
- * Needs some cleanup. --sr
- */
-#define UIC0MSR uic1msr
-#define UIC0SR uic1sr
-#define UIC1MSR uic1msr
-#define UIC1SR uic1sr
-#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
-/*
- * Hack: On 460EX/GT all enet irq sources are located on UIC2
- * Needs some cleanup. --ag
- */
-#define UIC0MSR uic2msr
-#define UIC0SR uic2sr
-#define UIC1MSR uic2msr
-#define UIC1SR uic2sr
-#else
-#define UIC0MSR uic0msr
-#define UIC0SR uic0sr
-#define UIC1MSR uic1msr
-#define UIC1SR uic1sr
-#endif
-
-#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
- defined(CONFIG_405EX)
-#define UICMSR_ETHX uic0msr
-#define UICSR_ETHX uic0sr
-#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
-#define UICMSR_ETHX uic2msr
-#define UICSR_ETHX uic2sr
-#else
-#define UICMSR_ETHX uic1msr
-#define UICSR_ETHX uic1sr
-#endif
-
int enetInt (struct eth_device *dev)
{
int serviced;
int rc = -1; /* default to not us */
- unsigned long mal_isr;
- unsigned long emac_isr = 0;
- unsigned long mal_rx_eob;
- unsigned long my_uic0msr, my_uic1msr;
- unsigned long my_uicmsr_ethx;
-
-#if defined(CONFIG_440GX)
- unsigned long my_uic2msr;
-#endif
+ u32 mal_isr;
+ u32 emac_isr = 0;
+ u32 mal_eob;
+ u32 uic_mal;
+ u32 uic_mal_err;
+ u32 uic_emac;
+ u32 uic_emac_b;
EMAC_4XX_HW_PST hw_p;
/*
@@ -1505,256 +1505,79 @@ int enetInt (struct eth_device *dev)
do {
serviced = 0;
- my_uic0msr = mfdcr (UIC0MSR);
- my_uic1msr = mfdcr (UIC1MSR);
-#if defined(CONFIG_440GX)
- my_uic2msr = mfdcr (uic2msr);
-#endif
- my_uicmsr_ethx = mfdcr (UICMSR_ETHX);
+ uic_mal = mfdcr(UIC_BASE_MAL + UIC_MSR);
+ uic_mal_err = mfdcr(UIC_BASE_MAL_ERR + UIC_MSR);
+ uic_emac = mfdcr(UIC_BASE_EMAC + UIC_MSR);
+ uic_emac_b = mfdcr(UIC_BASE_EMAC_B + UIC_MSR);
- if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
- && !(my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))
- && !(my_uicmsr_ethx & (UIC_ETH0 | UIC_ETH1))) {
- /* not for us */
- return (rc);
- }
-#if defined (CONFIG_440GX)
- if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
- && !(my_uic2msr & (UIC_ETH2 | UIC_ETH3))) {
+ if (!(uic_mal & (UIC_MAL_RXEOB | UIC_MAL_TXEOB))
+ && !(uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE))
+ && !(uic_emac & UIC_ETHx) && !(uic_emac_b & UIC_ETHxB)) {
/* not for us */
return (rc);
}
-#endif
+
/* get and clear controller status interrupts */
- /* look at Mal and EMAC interrupts */
- if ((my_uic0msr & (UIC_MRE | UIC_MTE))
- || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
- /* we have a MAL interrupt */
- mal_isr = mfdcr (malesr);
- /* look for mal error */
- if (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE)) {
- mal_err (dev, mal_isr, my_uic1msr, MAL_UIC_DEF, MAL_UIC_ERR);
- serviced = 1;
- rc = 0;
- }
- }
+ /* look at MAL and EMAC error interrupts */
+ if (uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)) {
+ /* we have a MAL error interrupt */
+ mal_isr = mfdcr(malesr);
+ mal_err(dev, mal_isr, uic_mal_err,
+ MAL_UIC_DEF, MAL_UIC_ERR);
- /* port by port dispatch of emac interrupts */
- if (hw_p->devnum == 0) {
- if (UIC_ETH0 & my_uicmsr_ethx) { /* look for EMAC errors */
- emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
- if ((hw_p->emac_ier & emac_isr) != 0) {
- emac_err (dev, emac_isr);
- serviced = 1;
- rc = 0;
- }
- }
- if ((hw_p->emac_ier & emac_isr)
- || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
- mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
- mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- mtdcr (UICSR_ETHX, UIC_ETH0); /* Clear */
- return (rc); /* we had errors so get out */
- }
- }
+ /* clear MAL error interrupt status bits */
+ mtdcr(UIC_BASE_MAL_ERR + UIC_SR,
+ UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE);
-#if !defined(CONFIG_440SP)
- if (hw_p->devnum == 1) {
- if (UIC_ETH1 & my_uicmsr_ethx) { /* look for EMAC errors */
- emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
- if ((hw_p->emac_ier & emac_isr) != 0) {
- emac_err (dev, emac_isr);
- serviced = 1;
- rc = 0;
- }
- }
- if ((hw_p->emac_ier & emac_isr)
- || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
- mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
- mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- mtdcr (UICSR_ETHX, UIC_ETH1); /* Clear */
- return (rc); /* we had errors so get out */
- }
- }
-#if defined (CONFIG_440GX)
- if (hw_p->devnum == 2) {
- if (UIC_ETH2 & my_uic2msr) { /* look for EMAC errors */
- emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
- if ((hw_p->emac_ier & emac_isr) != 0) {
- emac_err (dev, emac_isr);
- serviced = 1;
- rc = 0;
- }
- }
- if ((hw_p->emac_ier & emac_isr)
- || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
- mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
- mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- mtdcr (uic2sr, UIC_ETH2);
- return (rc); /* we had errors so get out */
- }
+ return -1;
}
- if (hw_p->devnum == 3) {
- if (UIC_ETH3 & my_uic2msr) { /* look for EMAC errors */
- emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
- if ((hw_p->emac_ier & emac_isr) != 0) {
- emac_err (dev, emac_isr);
- serviced = 1;
- rc = 0;
- }
- }
- if ((hw_p->emac_ier & emac_isr)
- || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
- mtdcr (UIC0SR, UIC_MRE | UIC_MTE); /* Clear */
- mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- mtdcr (uic2sr, UIC_ETH3);
- return (rc); /* we had errors so get out */
- }
- }
-#endif /* CONFIG_440GX */
-#endif /* !CONFIG_440SP */
+ /* look for EMAC errors */
+ if ((uic_emac & UIC_ETHx) || (uic_emac_b & UIC_ETHxB)) {
+ emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
+ emac_err(dev, emac_isr);
- /* handle MAX TX EOB interrupt from a tx */
- if (my_uic0msr & UIC_MTE) {
- mal_rx_eob = mfdcr (maltxeobisr);
- mtdcr (maltxeobisr, mal_rx_eob);
- mtdcr (UIC0SR, UIC_MTE);
- }
- /* handle MAL RX EOB interupt from a receive */
- /* check for EOB on valid channels */
- if (my_uic0msr & UIC_MRE) {
- mal_rx_eob = mfdcr (malrxeobisr);
- if ((mal_rx_eob &
- (0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)))
- != 0) { /* call emac routine for channel x */
- /* clear EOB
- mtdcr(malrxeobisr, mal_rx_eob); */
- enet_rcv (dev, emac_isr);
- /* indicate that we serviced an interrupt */
- serviced = 1;
- rc = 0;
- }
- }
+ /* clear EMAC error interrupt status bits */
+ mtdcr(UIC_BASE_EMAC + UIC_SR, UIC_ETHx);
+ mtdcr(UIC_BASE_EMAC_B + UIC_SR, UIC_ETHxB);
- mtdcr (UIC0SR, UIC_MRE); /* Clear */
- mtdcr (UIC1SR, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- switch (hw_p->devnum) {
- case 0:
- mtdcr (UICSR_ETHX, UIC_ETH0);
- break;
- case 1:
- mtdcr (UICSR_ETHX, UIC_ETH1);
- break;
-#if defined (CONFIG_440GX)
- case 2:
- mtdcr (uic2sr, UIC_ETH2);
- break;
- case 3:
- mtdcr (uic2sr, UIC_ETH3);
- break;
-#endif /* CONFIG_440GX */
- default:
- break;
+ return -1;
}
- } while (serviced);
-
- return (rc);
-}
-
-#else /* CONFIG_440 */
-
-int enetInt (struct eth_device *dev)
-{
- int serviced;
- int rc = -1; /* default to not us */
- unsigned long mal_isr;
- unsigned long emac_isr = 0;
- unsigned long mal_rx_eob;
- unsigned long my_uicmsr;
-
- EMAC_4XX_HW_PST hw_p;
-
- /*
- * Because the mal is generic, we need to get the current
- * eth device
- */
-#if defined(CONFIG_NET_MULTI)
- dev = eth_get_dev();
-#else
- dev = emac0_dev;
-#endif
- hw_p = dev->priv;
-
- /* enter loop that stays in interrupt code until nothing to service */
- do {
- serviced = 0;
-
- my_uicmsr = mfdcr (uicmsr);
-
- if ((my_uicmsr & (MAL_UIC_DEF | EMAC_UIC_DEF)) == 0) { /* not for us */
- return (rc);
- }
- /* get and clear controller status interrupts */
- /* look at Mal and EMAC interrupts */
- if ((MAL_UIC_DEF & my_uicmsr) != 0) { /* we have a MAL interrupt */
- mal_isr = mfdcr (malesr);
- /* look for mal error */
- if ((my_uicmsr & MAL_UIC_ERR) != 0) {
- mal_err (dev, mal_isr, my_uicmsr, MAL_UIC_DEF, MAL_UIC_ERR);
- serviced = 1;
- rc = 0;
- }
+ /* handle MAX TX EOB interrupt from a tx */
+ if (uic_mal & UIC_MAL_TXEOB) {
+ /* clear MAL interrupt status bits */
+ mal_eob = mfdcr(maltxeobisr);
+ mtdcr(maltxeobisr, mal_eob);
+ mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_TXEOB);
+
+ /* indicate that we serviced an interrupt */
+ serviced = 1;
+ rc = 0;
}
- /* port by port dispatch of emac interrupts */
+ /* handle MAL RX EOB interupt from a receive */
+ /* check for EOB on valid channels */
+ if (uic_mal & UIC_MAL_RXEOB) {
+ mal_eob = mfdcr(malrxeobisr);
+ if (mal_eob &
+ (0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL))) {
+ /* push packet to upper layer */
+ enet_rcv(dev, emac_isr);
- if ((SEL_UIC_DEF(hw_p->devnum) & my_uicmsr) != 0) { /* look for EMAC errors */
- emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
- if ((hw_p->emac_ier & emac_isr) != 0) {
- emac_err (dev, emac_isr);
- serviced = 1;
- rc = 0;
- }
- }
- if (((hw_p->emac_ier & emac_isr) != 0) || ((MAL_UIC_ERR & my_uicmsr) != 0)) {
- mtdcr (uicsr, MAL_UIC_DEF | SEL_UIC_DEF(hw_p->devnum)); /* Clear */
- return (rc); /* we had errors so get out */
- }
+ /* clear MAL interrupt status bits */
+ mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_RXEOB);
- /* handle MAX TX EOB interrupt from a tx */
- if (my_uicmsr & UIC_MAL_TXEOB) {
- mal_rx_eob = mfdcr (maltxeobisr);
- mtdcr (maltxeobisr, mal_rx_eob);
- mtdcr (uicsr, UIC_MAL_TXEOB);
- }
- /* handle MAL RX EOB interupt from a receive */
- /* check for EOB on valid channels */
- if (my_uicmsr & UIC_MAL_RXEOB)
- {
- mal_rx_eob = mfdcr (malrxeobisr);
- if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) { /* call emac routine for channel x */
- /* clear EOB
- mtdcr(malrxeobisr, mal_rx_eob); */
- enet_rcv (dev, emac_isr);
/* indicate that we serviced an interrupt */
serviced = 1;
rc = 0;
}
}
- mtdcr (uicsr, MAL_UIC_DEF|EMAC_UIC_DEF|EMAC_UIC_DEF1); /* Clear */
-#if defined(CONFIG_405EZ)
- mtsdr (sdricintstat, SDR_ICRX_STAT | SDR_ICTX0_STAT | SDR_ICTX1_STAT);
-#endif /* defined(CONFIG_405EZ) */
- }
- while (serviced);
+ } while (serviced);
return (rc);
}
-#endif /* CONFIG_440 */
-
/*-----------------------------------------------------------------------------+
* MAL Error Routine
*-----------------------------------------------------------------------------*/
@@ -1940,6 +1763,7 @@ int ppc_4xx_eth_initialize (bd_t * bis)
EMAC_4XX_HW_PST hw = NULL;
u8 ethaddr[4 + CONFIG_EMAC_NR_START][6];
u32 hw_addr[4];
+ u32 mal_ier;
#if defined(CONFIG_440GX)
unsigned long pfc1;
@@ -2077,19 +1901,19 @@ int ppc_4xx_eth_initialize (bd_t * bis)
mtdcr (malier, mal_ier);
/* install MAL interrupt handler */
- irq_install_handler (VECNUM_MS,
+ irq_install_handler (VECNUM_MAL_SERR,
(interrupt_handler_t *) enetInt,
dev);
- irq_install_handler (VECNUM_MTE,
+ irq_install_handler (VECNUM_MAL_TXEOB,
(interrupt_handler_t *) enetInt,
dev);
- irq_install_handler (VECNUM_MRE,
+ irq_install_handler (VECNUM_MAL_RXEOB,
(interrupt_handler_t *) enetInt,
dev);
- irq_install_handler (VECNUM_TXDE,
+ irq_install_handler (VECNUM_MAL_TXDE,
(interrupt_handler_t *) enetInt,
dev);
- irq_install_handler (VECNUM_RXDE,
+ irq_install_handler (VECNUM_MAL_RXDE,
(interrupt_handler_t *) enetInt,
dev);
virgin = 1;
generated by cgit v1.1 at 2024-12-16 08:06:35 +0000