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-rw-r--r--cpu/ppc4xx/405gp_enet.c3
-rw-r--r--cpu/ppc4xx/440gx_enet.c1144
-rw-r--r--cpu/ppc4xx/Makefile9
-rw-r--r--cpu/ppc4xx/cpu.c12
-rw-r--r--cpu/ppc4xx/interrupts.c221
-rw-r--r--cpu/ppc4xx/miiphy.c4
-rw-r--r--cpu/ppc4xx/miiphy_440.c259
-rw-r--r--cpu/ppc4xx/serial.c25
-rw-r--r--cpu/ppc4xx/speed.c53
-rw-r--r--cpu/ppc4xx/start.S50
10 files changed, 1749 insertions, 31 deletions
diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index 7394c21..65036d1 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -83,7 +83,8 @@
#include <malloc.h>
#include "vecnum.h"
-#if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
+#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
+ ( defined(CONFIG_440) && !defined(CONFIG_NET_MULTI))
#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
#define PHY_AUTONEGOTIATE_TIMEOUT 4000 /* 4000 ms autonegotiate timeout */
diff --git a/cpu/ppc4xx/440gx_enet.c b/cpu/ppc4xx/440gx_enet.c
new file mode 100644
index 0000000..617a174
--- /dev/null
+++ b/cpu/ppc4xx/440gx_enet.c
@@ -0,0 +1,1144 @@
+/*-----------------------------------------------------------------------------+
+ *
+ * This source code has been made available to you by IBM on an AS-IS
+ * basis. Anyone receiving this source is licensed under IBM
+ * copyrights to use it in any way he or she deems fit, including
+ * copying it, modifying it, compiling it, and redistributing it either
+ * with or without modifications. No license under IBM patents or
+ * patent applications is to be implied by the copyright license.
+ *
+ * Any user of this software should understand that IBM cannot provide
+ * technical support for this software and will not be responsible for
+ * any consequences resulting from the use of this software.
+ *
+ * Any person who transfers this source code or any derivative work
+ * must include the IBM copyright notice, this paragraph, and the
+ * preceding two paragraphs in the transferred software.
+ *
+ * COPYRIGHT I B M CORPORATION 1995
+ * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ *-----------------------------------------------------------------------------*/
+/*-----------------------------------------------------------------------------+
+ *
+ * File Name: enetemac.c
+ *
+ * Function: Device driver for the ethernet EMAC3 macro on the 405GP.
+ *
+ * Author: Mark Wisner
+ *
+ * Change Activity-
+ *
+ * Date Description of Change BY
+ * --------- --------------------- ---
+ * 05-May-99 Created MKW
+ * 27-Jun-99 Clean up JWB
+ * 16-Jul-99 Added MAL error recovery and better IP packet handling MKW
+ * 29-Jul-99 Added Full duplex support MKW
+ * 06-Aug-99 Changed names for Mal CR reg MKW
+ * 23-Aug-99 Turned off SYE when running at 10Mbs MKW
+ * 24-Aug-99 Marked descriptor empty after call_xlc MKW
+ * 07-Sep-99 Set MAL RX buffer size reg to ENET_MAX_MTU_ALIGNED / 16 MCG
+ * to avoid chaining maximum sized packets. Push starting
+ * RX descriptor address up to the next cache line boundary.
+ * 16-Jan-00 Added support for booting with IP of 0x0 MKW
+ * 15-Mar-00 Updated enetInit() to enable broadcast addresses in the
+ * EMAC_RXM register. JWB
+ * 12-Mar-01 anne-sophie.harnois@nextream.fr
+ * - Variables are compatible with those already defined in
+ * include/net.h
+ * - Receive buffer descriptor ring is used to send buffers
+ * to the user
+ * - Info print about send/received/handled packet number if
+ * INFO_405_ENET is set
+ * 17-Apr-01 stefan.roese@esd-electronics.com
+ * - MAL reset in "eth_halt" included
+ * - Enet speed and duplex output now in one line
+ * 08-May-01 stefan.roese@esd-electronics.com
+ * - MAL error handling added (eth_init called again)
+ * 13-Nov-01 stefan.roese@esd-electronics.com
+ * - Set IST bit in EMAC_M1 reg upon 100MBit or full duplex
+ * 04-Jan-02 stefan.roese@esd-electronics.com
+ * - Wait for PHY auto negotiation to complete added
+ * 06-Feb-02 stefan.roese@esd-electronics.com
+ * - Bug fixed in waiting for auto negotiation to complete
+ * 26-Feb-02 stefan.roese@esd-electronics.com
+ * - rx and tx buffer descriptors now allocated (no fixed address
+ * used anymore)
+ * 17-Jun-02 stefan.roese@esd-electronics.com
+ * - MAL error debug printf 'M' removed (rx de interrupt may
+ * occur upon many incoming packets with only 4 rx buffers).
+ *-----------------------------------------------------------------------------*
+ * 17-Nov-03 travis.sawyer@sandburst.com
+ * - ported from 405gp_enet.c to utilized upto 4 EMAC ports
+ * in the 440GX. This port should work with the 440GP
+ * (2 EMACs) also
+ *-----------------------------------------------------------------------------*/
+
+#include <config.h>
+#if defined(CONFIG_440) && defined(CONFIG_NET_MULTI)
+
+#include <common.h>
+#include <net.h>
+#include <asm/processor.h>
+#include <ppc440.h>
+#include <commproc.h>
+#include <440gx_enet.h>
+#include <405_mal.h>
+#include <miiphy.h>
+#include <malloc.h>
+#include "vecnum.h"
+
+
+#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
+#define PHY_AUTONEGOTIATE_TIMEOUT 4000 /* 4000 ms autonegotiate timeout */
+
+
+/* Ethernet Transmit and Receive Buffers */
+/* AS.HARNOIS
+ * In the same way ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
+ * PKTSIZE and PKTSIZE_ALIGN (include/net.h)
+ */
+#define ENET_MAX_MTU PKTSIZE
+#define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
+
+
+/* define the number of channels implemented */
+#define EMAC_RXCHL EMAC_NUM_DEV
+#define EMAC_TXCHL EMAC_NUM_DEV
+
+/*-----------------------------------------------------------------------------+
+ * 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
+
+#undef INFO_440_ENET
+
+/*-----------------------------------------------------------------------------+
+ * Global variables. TX and RX descriptors and buffers.
+ *-----------------------------------------------------------------------------*/
+/* IER globals */
+static uint32_t mal_ier;
+
+/*-----------------------------------------------------------------------------+
+ * Prototypes and externals.
+ *-----------------------------------------------------------------------------*/
+static void enet_rcv (struct eth_device *dev, unsigned long malisr);
+
+int enetInt (struct eth_device *dev);
+static void mal_err (struct eth_device *dev, unsigned long isr,
+ unsigned long uic, unsigned long maldef,
+ unsigned long mal_errr);
+static void emac_err (struct eth_device *dev, unsigned long isr);
+
+/*-----------------------------------------------------------------------------+
+| ppc_440x_eth_halt
+| Disable MAL channel, and EMACn
+|
+|
++-----------------------------------------------------------------------------*/
+static void ppc_440x_eth_halt (struct eth_device *dev)
+{
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+ uint32_t failsafe = 10000;
+
+ out32 (EMAC_IER + hw_p->hw_addr, 0x00000000); /* disable emac interrupts */
+
+ /* 1st reset MAL channel */
+ /* Note: writing a 0 to a channel has no effect */
+ mtdcr (maltxcarr, (MAL_CR_MMSR >> hw_p->devnum));
+ mtdcr (malrxcarr, (MAL_CR_MMSR >> hw_p->devnum));
+
+ /* wait for reset */
+ while (mfdcr (maltxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
+ udelay (1000); /* Delay 1 MS so as not to hammer the register */
+ failsafe--;
+ if (failsafe == 0)
+ break;
+
+ }
+
+ /* EMAC RESET */
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+
+ hw_p->print_speed = 1; /* print speed message again next time */
+
+ return;
+}
+
+extern int phy_setup_aneg (unsigned char addr);
+extern int miiphy_reset (unsigned char addr);
+
+static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
+{
+ int i;
+ unsigned long reg;
+ unsigned long msr;
+ unsigned long speed;
+ unsigned long duplex;
+ unsigned long failsafe;
+ unsigned mode_reg;
+ unsigned short devnum;
+ unsigned short reg_short;
+ sys_info_t sysinfo;
+
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ /* before doing anything, figure out if we have a MAC address */
+ /* if not, bail */
+ if (memcmp (dev->enetaddr, "\0\0\0\0\0\0", 6) == 0)
+ return -1;
+
+ /* Need to get the OPB frequency so we can access the PHY */
+ get_sys_info (&sysinfo);
+
+
+ msr = mfmsr ();
+ mtmsr (msr & ~(MSR_EE)); /* disable interrupts */
+
+ devnum = hw_p->devnum;
+
+#ifdef INFO_440_ENET
+ /* AS.HARNOIS
+ * We should have :
+ * hw_p->stats.pkts_handled <= hw_p->stats.pkts_rx <= hw_p->stats.pkts_handled+PKTBUFSRX
+ * In the most cases hw_p->stats.pkts_handled = hw_p->stats.pkts_rx, but it
+ * is possible that new packets (without relationship with
+ * current transfer) have got the time to arrived before
+ * netloop calls eth_halt
+ */
+ printf ("About preceeding transfer (eth%d):\n"
+ "- Sent packet number %d\n"
+ "- Received packet number %d\n"
+ "- Handled packet number %d\n",
+ hw_p->devnum,
+ hw_p->stats.pkts_tx,
+ hw_p->stats.pkts_rx, hw_p->stats.pkts_handled);
+
+ hw_p->stats.pkts_tx = 0;
+ hw_p->stats.pkts_rx = 0;
+ hw_p->stats.pkts_handled = 0;
+#endif
+
+ /* MAL Channel RESET */
+ /* 1st reset MAL channel */
+ /* Note: writing a 0 to a channel has no effect */
+ mtdcr (maltxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
+ mtdcr (malrxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
+
+ /* wait for reset */
+ /* TBS: should have udelay and failsafe here */
+ failsafe = 10000;
+ /* wait for reset */
+ while (mfdcr (maltxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
+ udelay (1000); /* Delay 1 MS so as not to hammer the register */
+ failsafe--;
+ if (failsafe == 0)
+ break;
+
+ }
+
+ hw_p->tx_err_index = 0; /* Transmit Error Index for tx_err_log */
+ hw_p->rx_err_index = 0; /* Receive Error Index for rx_err_log */
+
+ hw_p->rx_slot = 0; /* MAL Receive Slot */
+ hw_p->rx_i_index = 0; /* Receive Interrupt Queue Index */
+ hw_p->rx_u_index = 0; /* Receive User Queue Index */
+
+ hw_p->tx_slot = 0; /* MAL Transmit Slot */
+ hw_p->tx_i_index = 0; /* Transmit Interrupt Queue Index */
+ hw_p->tx_u_index = 0; /* Transmit User Queue Index */
+
+ /* set RMII mode */
+ /* NOTE: 440GX spec states that mode is mutually exclusive */
+ /* NOTE: Therefore, disable all other EMACS, since we handle */
+ /* NOTE: only one emac at a time */
+ reg = 0;
+ out32 (ZMII_FER, 0);
+ udelay (100);
+ out32 (ZMII_FER, ZMII_FER_MDI << ZMII_FER_V (devnum));
+ out32 (ZMII_SSR, 0x11110000);
+ /* reset emac so we have access to the phy */
+ __asm__ volatile ("eieio");
+
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+ __asm__ volatile ("eieio");
+
+ if ((devnum == 2) || (devnum == 3))
+ out32 (RGMII_FER, ((RGMII_FER_RGMII << RGMII_FER_V (2)) |
+ (RGMII_FER_RGMII << RGMII_FER_V (3))));
+ __asm__ volatile ("eieio");
+
+ failsafe = 1000;
+ while ((in32 (EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_SRST)) && failsafe) {
+ udelay (1000);
+ failsafe--;
+ }
+
+ /* Whack the M1 register */
+ mode_reg = 0x0;
+ mode_reg &= ~0x00000038;
+ if (sysinfo.freqOPB <= 50000000);
+ else if (sysinfo.freqOPB <= 66666667)
+ mode_reg |= EMAC_M1_OBCI_66;
+ else if (sysinfo.freqOPB <= 83333333)
+ mode_reg |= EMAC_M1_OBCI_83;
+ else if (sysinfo.freqOPB <= 100000000)
+ mode_reg |= EMAC_M1_OBCI_100;
+ else
+ mode_reg |= EMAC_M1_OBCI_GT100;
+
+ out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+
+ /* wait for PHY to complete auto negotiation */
+ reg_short = 0;
+#ifndef CONFIG_CS8952_PHY
+ switch (devnum) {
+ case 0:
+ reg = CONFIG_PHY_ADDR;
+ break;
+ case 1:
+ reg = CONFIG_PHY1_ADDR;
+ break;
+#if defined (CONFIG_440_GX)
+ case 2:
+ reg = CONFIG_PHY2_ADDR;
+ break;
+ case 3:
+ reg = CONFIG_PHY3_ADDR;
+ break;
+#endif
+ default:
+ reg = CONFIG_PHY_ADDR;
+ break;
+ }
+
+ /* Reset the phy */
+ miiphy_reset (reg);
+
+ /* Start/Restart autonegotiation */
+/* miiphy_write(reg, PHY_BMCR, 0x9340); */
+ phy_setup_aneg (reg);
+ udelay (1000);
+
+ miiphy_read (reg, PHY_BMSR, &reg_short);
+
+ /*
+ * Wait if PHY is able of autonegotiation and autonegotiation is not complete
+ */
+ if ((reg_short & PHY_BMSR_AUTN_ABLE)
+ && !(reg_short & PHY_BMSR_AUTN_COMP)) {
+ puts ("Waiting for PHY auto negotiation to complete");
+ i = 0;
+ while (!(reg_short & PHY_BMSR_AUTN_COMP)) {
+ /*
+ * Timeout reached ?
+ */
+ if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+ puts (" TIMEOUT !\n");
+ break;
+ }
+
+ if ((i++ % 1000) == 0) {
+ putc ('.');
+ }
+ udelay (1000); /* 1 ms */
+ miiphy_read (reg, PHY_BMSR, &reg_short);
+
+ }
+ puts (" done\n");
+ udelay (500000); /* another 500 ms (results in faster booting) */
+ }
+#endif
+ speed = miiphy_speed (reg);
+ duplex = miiphy_duplex (reg);
+
+ if (hw_p->print_speed) {
+ hw_p->print_speed = 0;
+ printf ("ENET Speed is %d Mbps - %s duplex connection\n",
+ (int) speed, (duplex == HALF) ? "HALF" : "FULL");
+ }
+
+ /* Set ZMII/RGMII speed according to the phy link speed */
+ reg = in32 (ZMII_SSR);
+ if (speed == 100)
+ out32 (ZMII_SSR, reg | (ZMII_SSR_SP << ZMII_SSR_V (devnum)));
+ else
+ out32 (ZMII_SSR,
+ reg & (~(ZMII_SSR_SP << ZMII_SSR_V (devnum))));
+
+ if ((devnum == 2) || (devnum == 3)) {
+ if (speed == 1000)
+ reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V (devnum));
+ else if (speed == 100)
+ reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V (devnum));
+ else
+ reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
+
+ out32 (RGMII_SSR, reg);
+ }
+
+ /* set the Mal configuration reg */
+ /* Errata 1.12: MAL_1 -- Disable MAL bursting */
+ if (get_pvr () == PVR_440GP_RB)
+ mtdcr (malmcr,
+ MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
+ else
+ mtdcr (malmcr,
+ MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
+ MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
+
+ /* Free "old" buffers */
+ if (hw_p->alloc_tx_buf)
+ free (hw_p->alloc_tx_buf);
+ if (hw_p->alloc_rx_buf)
+ free (hw_p->alloc_rx_buf);
+
+ /*
+ * Malloc MAL buffer desciptors, make sure they are
+ * aligned on cache line boundary size
+ * (401/403/IOP480 = 16, 405 = 32)
+ * and doesn't cross cache block boundaries.
+ */
+ hw_p->alloc_tx_buf =
+ (mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_TX_BUFF) +
+ ((2 * CFG_CACHELINE_SIZE) - 2));
+ if (((int) hw_p->alloc_tx_buf & CACHELINE_MASK) != 0) {
+ hw_p->tx =
+ (mal_desc_t *) ((int) hw_p->alloc_tx_buf +
+ CFG_CACHELINE_SIZE -
+ ((int) hw_p->
+ alloc_tx_buf & CACHELINE_MASK));
+ } else {
+ hw_p->tx = hw_p->alloc_tx_buf;
+ }
+
+ hw_p->alloc_rx_buf =
+ (mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_RX_BUFF) +
+ ((2 * CFG_CACHELINE_SIZE) - 2));
+ if (((int) hw_p->alloc_rx_buf & CACHELINE_MASK) != 0) {
+ hw_p->rx =
+ (mal_desc_t *) ((int) hw_p->alloc_rx_buf +
+ CFG_CACHELINE_SIZE -
+ ((int) hw_p->
+ alloc_rx_buf & CACHELINE_MASK));
+ } else {
+ hw_p->rx = hw_p->alloc_rx_buf;
+ }
+
+ for (i = 0; i < NUM_TX_BUFF; i++) {
+ hw_p->tx[i].ctrl = 0;
+ hw_p->tx[i].data_len = 0;
+ if (hw_p->first_init == 0)
+ hw_p->txbuf_ptr =
+ (char *) malloc (ENET_MAX_MTU_ALIGNED);
+ hw_p->tx[i].data_ptr = hw_p->txbuf_ptr;
+ if ((NUM_TX_BUFF - 1) == i)
+ hw_p->tx[i].ctrl |= MAL_TX_CTRL_WRAP;
+ hw_p->tx_run[i] = -1;
+#if 0
+ printf ("TX_BUFF %d @ 0x%08lx\n", i,
+ (ulong) hw_p->tx[i].data_ptr);
+#endif
+ }
+
+ for (i = 0; i < NUM_RX_BUFF; i++) {
+ hw_p->rx[i].ctrl = 0;
+ hw_p->rx[i].data_len = 0;
+ /* rx[i].data_ptr = (char *) &rx_buff[i]; */
+ hw_p->rx[i].data_ptr = (char *) NetRxPackets[i];
+ if ((NUM_RX_BUFF - 1) == i)
+ hw_p->rx[i].ctrl |= MAL_RX_CTRL_WRAP;
+ hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
+ hw_p->rx_ready[i] = -1;
+#if 0
+ printf ("RX_BUFF %d @ 0x%08lx\n", i, (ulong) rx[i].data_ptr);
+#endif
+ }
+
+ reg = 0x00000000;
+
+ reg |= dev->enetaddr[0]; /* set high address */
+ reg = reg << 8;
+ reg |= dev->enetaddr[1];
+
+ out32 (EMAC_IAH + hw_p->hw_addr, reg);
+
+ reg = 0x00000000;
+ reg |= dev->enetaddr[2]; /* set low address */
+ reg = reg << 8;
+ reg |= dev->enetaddr[3];
+ reg = reg << 8;
+ reg |= dev->enetaddr[4];
+ reg = reg << 8;
+ reg |= dev->enetaddr[5];
+
+ out32 (EMAC_IAL + hw_p->hw_addr, reg);
+
+ switch (devnum) {
+ case 1:
+ /* setup MAL tx & rx channel pointers */
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (maltxctp1r, hw_p->tx);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (malrxctp1r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+#if defined (CONFIG_440_GX)
+ case 2:
+ /* setup MAL tx & rx channel pointers */
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (maltxctp2r, hw_p->tx);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (malrxctp2r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs2, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+ case 3:
+ /* setup MAL tx & rx channel pointers */
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (maltxctp3r, hw_p->tx);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (malrxctp3r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs3, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+#endif /*CONFIG_440_GX */
+ case 0:
+ default:
+ /* setup MAL tx & rx channel pointers */
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (maltxctp0r, hw_p->tx);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (malrxctp0r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+ }
+
+ /* Enable MAL transmit and receive channels */
+ mtdcr (maltxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
+ mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
+
+ /* set transmit enable & receive enable */
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
+
+ /* set receive fifo to 4k and tx fifo to 2k */
+ mode_reg = in32 (EMAC_M1 + hw_p->hw_addr);
+ mode_reg |= EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K;
+
+ /* set speed */
+ /* TBS: do 1GbE */
+ if (speed == _100BASET)
+ mode_reg = mode_reg | EMAC_M1_MF_100MBPS | EMAC_M1_IST;
+ else
+ mode_reg = mode_reg & ~0x00C00000; /* 10 MBPS */
+ if (duplex == FULL)
+ mode_reg = mode_reg | 0x80000000 | EMAC_M1_IST;
+
+ out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+ /* Enable broadcast and indvidual address */
+ /* TBS: enabling runts as some misbehaved nics will send runts */
+ out32 (EMAC_RXM + hw_p->hw_addr, EMAC_RMR_BAE | EMAC_RMR_IAE);
+
+ /* we probably need to set the tx mode1 reg? maybe at tx time */
+
+ /* set transmit request threshold register */
+ out32 (EMAC_TRTR + hw_p->hw_addr, 0x18000000); /* 256 byte threshold */
+
+ /* set receive low/high water mark register */
+ /* 440GP has a 64 byte burst length */
+ out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
+ out32 (EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
+
+ /* Set fifo limit entry in tx mode 0 */
+ out32 (EMAC_TXM0 + hw_p->hw_addr, 0x00000003);
+ /* Frame gap set */
+ out32 (EMAC_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
+
+ /* Set EMAC IER */
+ hw_p->emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS |
+ EMAC_ISR_PTLE | EMAC_ISR_ORE | EMAC_ISR_IRE;
+ if (speed == _100BASET)
+ hw_p->emac_ier = hw_p->emac_ier | EMAC_ISR_SYE;
+
+ out32 (EMAC_ISR + hw_p->hw_addr, 0xffffffff); /* clear pending interrupts */
+ out32 (EMAC_IER + hw_p->hw_addr, hw_p->emac_ier);
+
+ if (hw_p->first_init == 0) {
+ /*
+ * Connect interrupt service routines
+ */
+ irq_install_handler (VECNUM_EWU0 + (hw_p->devnum * 2),
+ (interrupt_handler_t *) enetInt, dev);
+ irq_install_handler (VECNUM_ETH0 + (hw_p->devnum * 2),
+ (interrupt_handler_t *) enetInt, dev);
+ }
+#if 0 /* done by irq_install_handler */
+ /* set up interrupt handler */
+ /* setup interrupt controller to take interrupts from the MAL &
+ EMAC */
+ mtdcr (uicsr, 0xffffffff); /* clear pending interrupts */
+ mtdcr (uicer, mfdcr (uicer) | MAL_UIC_DEF | EMAC_UIC_DEF);
+#endif
+
+ mtmsr (msr); /* enable interrupts again */
+
+ hw_p->bis = bis;
+ hw_p->first_init = 1;
+
+ return (1);
+}
+
+
+static int ppc_440x_eth_send (struct eth_device *dev, volatile void *ptr,
+ int len)
+{
+ struct enet_frame *ef_ptr;
+ ulong time_start, time_now;
+ unsigned long temp_txm0;
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ ef_ptr = (struct enet_frame *) ptr;
+
+ /*-----------------------------------------------------------------------+
+ * Copy in our address into the frame.
+ *-----------------------------------------------------------------------*/
+ (void) memcpy (ef_ptr->source_addr, dev->enetaddr, ENET_ADDR_LENGTH);
+
+ /*-----------------------------------------------------------------------+
+ * If frame is too long or too short, modify length.
+ *-----------------------------------------------------------------------*/
+ /* TBS: where does the fragment go???? */
+ if (len > ENET_MAX_MTU)
+ len = ENET_MAX_MTU;
+
+ /* memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
+ memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
+
+ /*-----------------------------------------------------------------------+
+ * set TX Buffer busy, and send it
+ *-----------------------------------------------------------------------*/
+ hw_p->tx[hw_p->tx_slot].ctrl = (MAL_TX_CTRL_LAST |
+ EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
+ ~(EMAC_TX_CTRL_ISA | EMAC_TX_CTRL_RSA);
+ if ((NUM_TX_BUFF - 1) == hw_p->tx_slot)
+ hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
+
+ hw_p->tx[hw_p->tx_slot].data_len = (short) len;
+ hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_READY;
+
+ __asm__ volatile ("eieio");
+
+ out32 (EMAC_TXM0 + hw_p->hw_addr,
+ in32 (EMAC_TXM0 + hw_p->hw_addr) | EMAC_TXM0_GNP0);
+#ifdef INFO_440_ENET
+ hw_p->stats.pkts_tx++;
+#endif
+
+ /*-----------------------------------------------------------------------+
+ * poll unitl the packet is sent and then make sure it is OK
+ *-----------------------------------------------------------------------*/
+ time_start = get_timer (0);
+ while (1) {
+ temp_txm0 = in32 (EMAC_TXM0 + hw_p->hw_addr);
+ /* loop until either TINT turns on or 3 seconds elapse */
+ if ((temp_txm0 & EMAC_TXM0_GNP0) != 0) {
+ /* transmit is done, so now check for errors
+ * If there is an error, an interrupt should
+ * happen when we return
+ */
+ time_now = get_timer (0);
+ if ((time_now - time_start) > 3000) {
+ return (-1);
+ }
+ } else {
+ return (len);
+ }
+ }
+}
+
+
+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;
+
+#if defined(CONFIG_440_GX)
+ unsigned long my_uic2msr;
+#endif
+ EMAC_440GX_HW_PST hw_p;
+
+ /*
+ * Because the mal is generic, we need to get the current
+ * eth device
+ */
+ dev = eth_get_dev ();
+
+ hw_p = dev->priv;
+
+
+ /* enter loop that stays in interrupt code until nothing to service */
+ do {
+ serviced = 0;
+
+ my_uic0msr = mfdcr (uic0msr);
+ my_uic1msr = mfdcr (uic1msr);
+#if defined(CONFIG_440_GX)
+ my_uic2msr = mfdcr (uic2msr);
+#endif
+ if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
+ && !(my_uic1msr &
+ (UIC_ETH0 | UIC_ETH1 | UIC_MS | UIC_MTDE |
+ UIC_MRDE))) {
+ /* not for us */
+ return (rc);
+ }
+#if defined (CONFIG_440_GX)
+ if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
+ && !(my_uic2msr & (UIC_ETH2 | UIC_ETH3))) {
+ /* 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_uic0msr,
+ MAL_UIC_DEF, MAL_UIC_ERR);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+
+ /* port by port dispatch of emac interrupts */
+ if (hw_p->devnum == 0) {
+ if (UIC_ETH0 & my_uic1msr) { /* look for EMAC errors */
+ emac_isr = in32 (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_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ return (rc); /* we had errors so get out */
+ }
+ }
+
+ if (hw_p->devnum == 1) {
+ if (UIC_ETH1 & my_uic1msr) { /* look for EMAC errors */
+ emac_isr = in32 (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_ETH1 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ return (rc); /* we had errors so get out */
+ }
+ }
+#if defined (CONFIG_440_GX)
+ if (hw_p->devnum == 2) {
+ if (UIC_ETH2 & my_uic2msr) { /* look for EMAC errors */
+ emac_isr = in32 (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 */
+ }
+ }
+
+ if (hw_p->devnum == 3) {
+ if (UIC_ETH3 & my_uic2msr) { /* look for EMAC errors */
+ emac_isr = in32 (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_440_GX */
+ /* 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)) != 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 (uic0sr, UIC_MRE); /* Clear */
+ mtdcr (uic1sr, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ switch (hw_p->devnum) {
+ case 0:
+ mtdcr (uic1sr, UIC_ETH0);
+ break;
+ case 1:
+ mtdcr (uic1sr, UIC_ETH1);
+ break;
+#if defined (CONFIG_440_GX)
+ case 2:
+ mtdcr (uic2sr, UIC_ETH2);
+ break;
+ case 3:
+ mtdcr (uic2sr, UIC_ETH3);
+ break;
+#endif /* CONFIG_440_GX */
+ default:
+ break;
+ }
+ } while (serviced);
+
+ return (rc);
+}
+
+/*-----------------------------------------------------------------------------+
+ * MAL Error Routine
+ *-----------------------------------------------------------------------------*/
+static void mal_err (struct eth_device *dev, unsigned long isr,
+ unsigned long uic, unsigned long maldef,
+ unsigned long mal_errr)
+{
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ mtdcr (malesr, isr); /* clear interrupt */
+
+ /* clear DE interrupt */
+ mtdcr (maltxdeir, 0xC0000000);
+ mtdcr (malrxdeir, 0x80000000);
+
+#ifdef INFO_440_ENET
+ printf ("\nMAL error occured.... ISR = %lx UIC = = %lx MAL_DEF = %lx MAL_ERR= %lx \n", isr, uic, maldef, mal_errr);
+#endif
+
+ eth_init (hw_p->bis); /* start again... */
+}
+
+/*-----------------------------------------------------------------------------+
+ * EMAC Error Routine
+ *-----------------------------------------------------------------------------*/
+static void emac_err (struct eth_device *dev, unsigned long isr)
+{
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ printf ("EMAC%d error occured.... ISR = %lx\n", hw_p->devnum, isr);
+ out32 (EMAC_ISR + hw_p->hw_addr, isr);
+}
+
+/*-----------------------------------------------------------------------------+
+ * enet_rcv() handles the ethernet receive data
+ *-----------------------------------------------------------------------------*/
+static void enet_rcv (struct eth_device *dev, unsigned long malisr)
+{
+ struct enet_frame *ef_ptr;
+ unsigned long data_len;
+ unsigned long rx_eob_isr;
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ int handled = 0;
+ int i;
+ int loop_count = 0;
+
+ rx_eob_isr = mfdcr (malrxeobisr);
+ if ((0x80000000 >> hw_p->devnum) & rx_eob_isr) {
+ /* clear EOB */
+ mtdcr (malrxeobisr, rx_eob_isr);
+
+ /* EMAC RX done */
+ while (1) { /* do all */
+ i = hw_p->rx_slot;
+
+ if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
+ || (loop_count >= NUM_RX_BUFF))
+ break;
+ loop_count++;
+ hw_p->rx_slot++;
+ if (NUM_RX_BUFF == hw_p->rx_slot)
+ hw_p->rx_slot = 0;
+ handled++;
+ data_len = (unsigned long) hw_p->rx[i].data_len; /* Get len */
+ if (data_len) {
+ if (data_len > ENET_MAX_MTU) /* Check len */
+ data_len = 0;
+ else {
+ if (EMAC_RX_ERRORS & hw_p->rx[i].ctrl) { /* Check Errors */
+ data_len = 0;
+ hw_p->stats.rx_err_log[hw_p->
+ rx_err_index]
+ = hw_p->rx[i].ctrl;
+ hw_p->rx_err_index++;
+ if (hw_p->rx_err_index ==
+ MAX_ERR_LOG)
+ hw_p->rx_err_index =
+ 0;
+ } /* emac_erros */
+ } /* data_len < max mtu */
+ } /* if data_len */
+ if (!data_len) { /* no data */
+ hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY; /* Free Recv Buffer */
+
+ hw_p->stats.data_len_err++; /* Error at Rx */
+ }
+
+ /* !data_len */
+ /* AS.HARNOIS */
+ /* Check if user has already eaten buffer */
+ /* if not => ERROR */
+ else if (hw_p->rx_ready[hw_p->rx_i_index] != -1) {
+ if (hw_p->is_receiving)
+ printf ("ERROR : Receive buffers are full!\n");
+ break;
+ } else {
+ hw_p->stats.rx_frames++;
+ hw_p->stats.rx += data_len;
+ ef_ptr = (struct enet_frame *) hw_p->rx[i].
+ data_ptr;
+#ifdef INFO_440_ENET
+ hw_p->stats.pkts_rx++;
+#endif
+ /* AS.HARNOIS
+ * use ring buffer
+ */
+ hw_p->rx_ready[hw_p->rx_i_index] = i;
+ hw_p->rx_i_index++;
+ if (NUM_RX_BUFF == hw_p->rx_i_index)
+ hw_p->rx_i_index = 0;
+
+ /* printf("X"); /|* test-only *|/ */
+
+ /* AS.HARNOIS
+ * free receive buffer only when
+ * buffer has been handled (eth_rx)
+ rx[i].ctrl |= MAL_RX_CTRL_EMPTY;
+ */
+ } /* if data_len */
+ } /* while */
+ } /* if EMACK_RXCHL */
+}
+
+
+static int ppc_440x_eth_rx (struct eth_device *dev)
+{
+ int length;
+ int user_index;
+ unsigned long msr;
+ EMAC_440GX_HW_PST hw_p = dev->priv;
+
+ hw_p->is_receiving = 1; /* tell driver */
+
+ for (;;) {
+ /* AS.HARNOIS
+ * use ring buffer and
+ * get index from rx buffer desciptor queue
+ */
+ user_index = hw_p->rx_ready[hw_p->rx_u_index];
+ if (user_index == -1) {
+ length = -1;
+ break; /* nothing received - leave for() loop */
+ }
+
+ msr = mfmsr ();
+ mtmsr (msr & ~(MSR_EE));
+
+ length = hw_p->rx[user_index].data_len;
+
+ /* Pass the packet up to the protocol layers. */
+ /* NetReceive(NetRxPackets[rxIdx], length - 4); */
+ /* NetReceive(NetRxPackets[i], length); */
+ NetReceive (NetRxPackets[user_index], length - 4);
+ /* Free Recv Buffer */
+ hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
+ /* Free rx buffer descriptor queue */
+ hw_p->rx_ready[hw_p->rx_u_index] = -1;
+ hw_p->rx_u_index++;
+ if (NUM_RX_BUFF == hw_p->rx_u_index)
+ hw_p->rx_u_index = 0;
+
+#ifdef INFO_440_ENET
+ hw_p->stats.pkts_handled++;
+#endif
+
+ mtmsr (msr); /* Enable IRQ's */
+ }
+
+ hw_p->is_receiving = 0; /* tell driver */
+
+ return length;
+}
+
+int ppc_440x_eth_initialize (bd_t * bis)
+{
+ static int virgin = 0;
+ unsigned long pfc1;
+ struct eth_device *dev;
+ int eth_num = 0;
+
+ EMAC_440GX_HW_PST hw = NULL;
+
+ mfsdr (sdr_pfc1, pfc1);
+ pfc1 &= ~(0x01e00000);
+ pfc1 |= 0x01200000;
+ mtsdr (sdr_pfc1, pfc1);
+
+ for (eth_num = 0; eth_num < EMAC_NUM_DEV; eth_num++) {
+
+ /* See if we can actually bring up the interface, otherwise, skip it */
+ switch (eth_num) {
+ case 0:
+ if (memcmp (bis->bi_enetaddr, "\0\0\0\0\0\0", 6) == 0)
+ continue;
+ break;
+ case 1:
+ if (memcmp (bis->bi_enet1addr, "\0\0\0\0\0\0", 6) ==
+ 0)
+ continue;
+ break;
+ case 2:
+ if (memcmp (bis->bi_enet2addr, "\0\0\0\0\0\0", 6) ==
+ 0)
+ continue;
+ break;
+ case 3:
+ if (memcmp (bis->bi_enet3addr, "\0\0\0\0\0\0", 6) ==
+ 0)
+ continue;
+ break;
+ default:
+ if (memcmp (bis->bi_enetaddr, "\0\0\0\0\0\0", 6) == 0)
+ continue;
+ break;
+ }
+
+ /* Allocate device structure */
+ dev = (struct eth_device *) malloc (sizeof (*dev));
+ if (dev == NULL) {
+ printf (__FUNCTION__
+ ": Cannot allocate eth_device %d\n", eth_num);
+ return (-1);
+ }
+
+ /* Allocate our private use data */
+ hw = (EMAC_440GX_HW_PST) malloc (sizeof (*hw));
+ if (hw == NULL) {
+ printf (__FUNCTION__
+ ": Cannot allocate private hw data for eth_device %d",
+ eth_num);
+ free (dev);
+ return (-1);
+ }
+
+ switch (eth_num) {
+ case 0:
+ hw->hw_addr = 0;
+ memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
+ break;
+ case 1:
+ hw->hw_addr = 0x100;
+ memcpy (dev->enetaddr, bis->bi_enet1addr, 6);
+ break;
+ case 2:
+ hw->hw_addr = 0x400;
+ memcpy (dev->enetaddr, bis->bi_enet2addr, 6);
+ break;
+ case 3:
+ hw->hw_addr = 0x600;
+ memcpy (dev->enetaddr, bis->bi_enet3addr, 6);
+ break;
+ default:
+ hw->hw_addr = 0;
+ memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
+ break;
+ }
+
+ hw->devnum = eth_num;
+
+ sprintf (dev->name, "ppc_440x_eth%d", eth_num);
+ dev->priv = (void *) hw;
+ dev->init = ppc_440x_eth_init;
+ dev->halt = ppc_440x_eth_halt;
+ dev->send = ppc_440x_eth_send;
+ dev->recv = ppc_440x_eth_rx;
+
+ if (0 == virgin) {
+ /* set the MAL IER ??? names may change with new spec ??? */
+ mal_ier =
+ MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
+ MAL_IER_OPBE | MAL_IER_PLBE;
+ mtdcr (malesr, 0xffffffff); /* clear pending interrupts */
+ mtdcr (maltxdeir, 0xffffffff); /* clear pending interrupts */
+ mtdcr (malrxdeir, 0xffffffff); /* clear pending interrupts */
+ mtdcr (malier, mal_ier);
+
+ /* install MAL interrupt handler */
+ irq_install_handler (VECNUM_MS,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_MTE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_MRE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_TXDE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_RXDE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ virgin = 1;
+ }
+
+ eth_register (dev);
+
+ } /* end for each supported device */
+ return (1);
+}
+#endif /* CONFIG_440 && CONFIG_NET_MULTI */
diff --git a/cpu/ppc4xx/Makefile b/cpu/ppc4xx/Makefile
index 12f1fdf..9b54d32 100644
--- a/cpu/ppc4xx/Makefile
+++ b/cpu/ppc4xx/Makefile
@@ -27,9 +27,12 @@ LIB = lib$(CPU).a
START = start.o resetvec.o kgdb.o
AOBJS = dcr.o
-COBJS = traps.o serial.o cpu.o cpu_init.o speed.o interrupts.o \
- 405gp_pci.o 405gp_enet.o miiphy.o i2c.o bedbug_405.o \
- spd_sdram.o sdram.o
+COBJS = 405gp_enet.o 405gp_pci.o 440gx_enet.o \
+ bedbug_405.o \
+ cpu.o cpu_init.o i2c.o interrupts.o \
+ miiphy.o miiphy_440.o sdram.o serial.o \
+ spd_sdram.o speed.o traps.o
+
OBJS = $(AOBJS) $(COBJS)
all: .depend $(START) $(LIB)
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 0ad99b8..df19605 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -152,10 +152,10 @@ int checkcpu (void)
#endif
#if defined(CONFIG_440)
- puts ("IBM PowerPC 440 Rev. ");
+ puts ("IBM PowerPC 440 G");
switch(pvr) {
case PVR_440GP_RB:
- putc('B');
+ puts("P Rev. B");
/* See errata 1.12: CHIP_4 */
if ((mfdcr(cpc0_sys0) != mfdcr(cpc0_strp0)) ||
(mfdcr(cpc0_sys1) != mfdcr(cpc0_strp1)) ){
@@ -167,7 +167,13 @@ int checkcpu (void)
}
break;
case PVR_440GP_RC:
- putc('C');
+ puts("P Rev. C");
+ break;
+ case PVR_440GX_RA:
+ puts("X Rev. A");
+ break;
+ case PVR_440GX_RB:
+ puts("X Rev. B");
break;
default:
printf ("UNKNOWN (PVR=%08x)", pvr);
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c
index 974797f..71052b4 100644
--- a/cpu/ppc4xx/interrupts.c
+++ b/cpu/ppc4xx/interrupts.c
@@ -5,6 +5,9 @@
* (C) Copyright 2002 (440 port)
* Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com
*
+ * (C) Copyright 2003 (440GX port)
+ * Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -50,7 +53,15 @@ static struct irq_action irq_vecs[32];
static struct irq_action irq_vecs1[32]; /* For UIC1 */
void uic1_interrupt( void * parms); /* UIC1 handler */
-#endif
+
+#if defined(CONFIG_440_GX)
+static struct irq_action irq_vecs2[32]; /* For UIC2 */
+
+void uic0_interrupt( void * parms); /* UIC0 handler */
+void uic2_interrupt( void * parms); /* UIC2 handler */
+#endif /* CONFIG_440_GX */
+
+#endif /* CONFIG_440 */
/****************************************************************************/
#if defined(CONFIG_440)
@@ -104,6 +115,11 @@ int interrupt_init_cpu (unsigned *decrementer_count)
irq_vecs1[vec].handler = NULL;
irq_vecs1[vec].arg = NULL;
irq_vecs1[vec].count = 0;
+#if defined(CONFIG_440_GX)
+ irq_vecs2[vec].handler = NULL;
+ irq_vecs2[vec].arg = NULL;
+ irq_vecs2[vec].count = 0;
+#endif /* CONFIG_440_GX */
#endif
}
@@ -146,10 +162,18 @@ int interrupt_init_cpu (unsigned *decrementer_count)
set_evpr(0x00000000);
#if defined(CONFIG_440)
+#if !defined(CONFIG_440_GX)
/* Install the UIC1 handlers */
irq_install_handler(VECNUM_UIC1NC, uic1_interrupt, 0);
irq_install_handler(VECNUM_UIC1C, uic1_interrupt, 0);
#endif
+#endif
+
+#if defined(CONFIG_440_GX)
+ /* Enable UIC interrupts via UIC Base Enable Register */
+ mtdcr(uicb0er, UICB0_ALL);
+ mtdcr(uicb0cr, UICB0_ALL);
+#endif
return (0);
}
@@ -159,6 +183,29 @@ int interrupt_init_cpu (unsigned *decrementer_count)
/*
* Handle external interrupts
*/
+#if defined(CONFIG_440_GX)
+void external_interrupt(struct pt_regs *regs)
+{
+ ulong uic_msr;
+
+ /*
+ * Read masked interrupt status register to determine interrupt source
+ */
+ /* 440 GX uses base uic register */
+ uic_msr = mfdcr(uicb0msr);
+
+ uic0_interrupt(0);
+ uic1_interrupt(0);
+ uic2_interrupt(0);
+
+ mtdcr(uicb0sr, UICB0_ALL);
+
+ return;
+
+} /* external_interrupt CONFIG_440_GX */
+
+#else
+
void external_interrupt(struct pt_regs *regs)
{
ulong uic_msr;
@@ -200,6 +247,53 @@ void external_interrupt(struct pt_regs *regs)
vec++;
}
}
+#endif
+
+#if defined(CONFIG_440_GX)
+/* Handler for UIC0 interrupt */
+void uic0_interrupt( void * parms)
+{
+ ulong uic_msr;
+ ulong msr_shift;
+ int vec;
+
+ /*
+ * Read masked interrupt status register to determine interrupt source
+ */
+ uic_msr = mfdcr(uicmsr);
+ msr_shift = uic_msr;
+ vec = 0;
+
+ while (msr_shift != 0) {
+ if (msr_shift & 0x80000000) {
+ /*
+ * Increment irq counter (for debug purpose only)
+ */
+ irq_vecs[vec].count++;
+
+ if (irq_vecs[vec].handler != NULL) {
+ /* call isr */
+ (*irq_vecs[vec].handler)(irq_vecs[vec].arg);
+ } else {
+ mtdcr(uicer, mfdcr(uicer) & ~(0x80000000 >> vec));
+ printf ("Masking bogus interrupt vector (uic0) 0x%x\n", vec);
+ }
+
+ /*
+ * After servicing the interrupt, we have to remove the status indicator.
+ */
+ mtdcr(uicsr, (0x80000000 >> vec));
+ }
+
+ /*
+ * Shift msr to next position and increment vector
+ */
+ msr_shift <<= 1;
+ vec++;
+ }
+}
+
+#endif /* CONFIG_440_GX */
#if defined(CONFIG_440)
/* Handler for UIC1 interrupt */
@@ -246,50 +340,119 @@ void uic1_interrupt( void * parms)
}
#endif /* defined(CONFIG_440) */
+#if defined(CONFIG_440_GX)
+/* Handler for UIC1 interrupt */
+void uic2_interrupt( void * parms)
+{
+ ulong uic2_msr;
+ ulong msr_shift;
+ int vec;
+
+ /*
+ * Read masked interrupt status register to determine interrupt source
+ */
+ uic2_msr = mfdcr(uic2msr);
+ msr_shift = uic2_msr;
+ vec = 0;
+
+ while (msr_shift != 0) {
+ if (msr_shift & 0x80000000) {
+ /*
+ * Increment irq counter (for debug purpose only)
+ */
+ irq_vecs2[vec].count++;
+
+ if (irq_vecs2[vec].handler != NULL) {
+ /* call isr */
+ (*irq_vecs2[vec].handler)(irq_vecs2[vec].arg);
+ } else {
+ mtdcr(uic2er, mfdcr(uic2er) & ~(0x80000000 >> vec));
+ printf ("Masking bogus interrupt vector (uic1) 0x%x\n", vec);
+ }
+
+ /*
+ * After servicing the interrupt, we have to remove the status indicator.
+ */
+ mtdcr(uic2sr, (0x80000000 >> vec));
+ }
+
+ /*
+ * Shift msr to next position and increment vector
+ */
+ msr_shift <<= 1;
+ vec++;
+ }
+}
+#endif /* defined(CONFIG_440_GX) */
+
/****************************************************************************/
/*
* Install and free a interrupt handler.
*/
-void
-irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
+void irq_install_handler (int vec, interrupt_handler_t * handler, void *arg)
{
struct irq_action *irqa = irq_vecs;
- int i = vec;
+ int i = vec;
#if defined(CONFIG_440)
+#if defined(CONFIG_440_GX)
+ if ((vec > 31) && (vec < 64)) {
+ i = vec - 32;
+ irqa = irq_vecs1;
+ } else if (vec > 63) {
+ i = vec - 64;
+ irqa = irq_vecs2;
+ }
+#else /* CONFIG_440_GX */
if (vec > 31) {
i = vec - 32;
irqa = irq_vecs1;
}
-#endif
+#endif /* CONFIG_440_GX */
+#endif /* CONFIG_440 */
if (irqa[i].handler != NULL) {
printf ("Interrupt vector %d: handler 0x%x replacing 0x%x\n",
- vec, (uint)handler, (uint)irqa[i].handler);
+ vec, (uint) handler, (uint) irqa[i].handler);
}
irqa[i].handler = handler;
- irqa[i].arg = arg;
+ irqa[i].arg = arg;
#if defined(CONFIG_440)
- if( vec > 31 )
- mtdcr(uic1er, mfdcr(uic1er) | (0x80000000 >> i));
+#if defined(CONFIG_440_GX)
+ if ((vec > 31) && (vec < 64))
+ mtdcr (uic1er, mfdcr (uic1er) | (0x80000000 >> i));
+ else if (vec > 63)
+ mtdcr (uic2er, mfdcr (uic2er) | (0x80000000 >> i));
+ else
+#endif /* CONFIG_440_GX */
+ if (vec > 31)
+ mtdcr (uic1er, mfdcr (uic1er) | (0x80000000 >> i));
else
#endif
- mtdcr(uicer, mfdcr(uicer) | (0x80000000 >> i));
+ mtdcr (uicer, mfdcr (uicer) | (0x80000000 >> i));
#if 0
printf ("Install interrupt for vector %d ==> %p\n", vec, handler);
#endif
}
-void
-irq_free_handler(int vec)
+void irq_free_handler (int vec)
{
struct irq_action *irqa = irq_vecs;
- int i = vec;
+ int i = vec;
#if defined(CONFIG_440)
+#if defined(CONFIG_440_GX)
+ if ((vec > 31) && (vec < 64)) {
+ irqa = irq_vecs1;
+ i = vec - 32;
+ } else if (vec > 63) {
+ irqa = irq_vecs2;
+ i = vec - 64;
+ }
+#endif /* CONFIG_440_GX */
if (vec > 31) {
irqa = irq_vecs1;
i = vec - 32;
@@ -302,14 +465,21 @@ irq_free_handler(int vec)
#endif
#if defined(CONFIG_440)
+#if defined(CONFIG_440_GX)
+ if ((vec > 31) && (vec < 64))
+ mtdcr (uic1er, mfdcr (uic1er) & ~(0x80000000 >> i));
+ else if (vec > 63)
+ mtdcr (uic2er, mfdcr (uic2er) & ~(0x80000000 >> i));
+ else
+#endif /* CONFIG_440_GX */
if (vec > 31)
- mtdcr(uic1er, mfdcr(uic1er) & ~(0x80000000 >> i));
+ mtdcr (uic1er, mfdcr (uic1er) & ~(0x80000000 >> i));
else
#endif
- mtdcr(uicer, mfdcr(uicer) & ~(0x80000000 >> i));
+ mtdcr (uicer, mfdcr (uicer) & ~(0x80000000 >> i));
irqa[i].handler = NULL;
- irqa[i].arg = NULL;
+ irqa[i].arg = NULL;
}
/****************************************************************************/
@@ -354,8 +524,7 @@ do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
printf ("\nUIC 1\n");
printf ("Nr Routine Arg Count\n");
- for (vec=0; vec<32; vec++)
- {
+ for (vec=0; vec<32; vec++) {
if (irq_vecs1[vec].handler != NULL)
printf ("%02d %08lx %08lx %d\n",
vec+31, (ulong)irq_vecs1[vec].handler,
@@ -363,8 +532,20 @@ do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
printf("\n");
#endif
- return 0;
-}
+#if defined(CONFIG_440_GX)
+ printf ("\nUIC 2\n");
+ printf ("Nr Routine Arg Count\n");
+ for (vec=0; vec<32; vec++) {
+ if (irq_vecs2[vec].handler != NULL)
+ printf ("%02d %08lx %08lx %d\n",
+ vec+63, (ulong)irq_vecs2[vec].handler,
+ (ulong)irq_vecs2[vec].arg, irq_vecs2[vec].count);
+ }
+ printf("\n");
+#endif
+
+ return 0;
+}
#endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */
diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c
index fce5f4b..5ca6681 100644
--- a/cpu/ppc4xx/miiphy.c
+++ b/cpu/ppc4xx/miiphy.c
@@ -48,8 +48,8 @@
#include <405_mal.h>
#include <miiphy.h>
-#if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
-
+#if (defined(CONFIG_405GP) || defined(CONFIG_405EP) || defined(CONFIG_440)) \
+ && !defined (CONFIG_NET_MULTI)
/***********************************************************/
/* Dump out to the screen PHY regs */
diff --git a/cpu/ppc4xx/miiphy_440.c b/cpu/ppc4xx/miiphy_440.c
new file mode 100644
index 0000000..bbe535a
--- /dev/null
+++ b/cpu/ppc4xx/miiphy_440.c
@@ -0,0 +1,259 @@
+/*-----------------------------------------------------------------------------+
+ |
+ | This source code has been made available to you by IBM on an AS-IS
+ | basis. Anyone receiving this source is licensed under IBM
+ | copyrights to use it in any way he or she deems fit, including
+ | copying it, modifying it, compiling it, and redistributing it either
+ | with or without modifications. No license under IBM patents or
+ | patent applications is to be implied by the copyright license.
+ |
+ | Any user of this software should understand that IBM cannot provide
+ | technical support for this software and will not be responsible for
+ | any consequences resulting from the use of this software.
+ |
+ | Any person who transfers this source code or any derivative work
+ | must include the IBM copyright notice, this paragraph, and the
+ | preceding two paragraphs in the transferred software.
+ |
+ | COPYRIGHT I B M CORPORATION 1995
+ | LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ +-----------------------------------------------------------------------------*/
+/*-----------------------------------------------------------------------------+
+ |
+ | File Name: miiphy.c
+ |
+ | Function: This module has utilities for accessing the MII PHY through
+ | the EMAC3 macro.
+ |
+ | Author: Mark Wisner
+ |
+ | Change Activity-
+ |
+ | Date Description of Change BY
+ | --------- --------------------- ---
+ | 05-May-99 Created MKW
+ | 01-Jul-99 Changed clock setting of sta_reg from 66Mhz to 50Mhz to
+ | better match OPB speed. Also modified delay times. JWB
+ | 29-Jul-99 Added Full duplex support MKW
+ | 24-Aug-99 Removed printf from dp83843_duplex() JWB
+ | 19-Jul-00 Ported to esd cpci405 sr
+ | 23-Dec-03 Ported from miiphy.c to 440GX Travis Sawyer TBS
+ | <travis.sawyer@sandburst.com>
+ |
+ +-----------------------------------------------------------------------------*/
+
+#include <common.h>
+#include <asm/processor.h>
+#include <ppc_asm.tmpl>
+#include <commproc.h>
+#include <440gx_enet.h>
+#include <405_mal.h>
+#include <miiphy.h>
+
+#if defined(CONFIG_440) && defined(CONFIG_NET_MULTI)
+
+
+/***********************************************************/
+/* Dump out to the screen PHY regs */
+/***********************************************************/
+
+void miiphy_dump (unsigned char addr)
+{
+ unsigned long i;
+ unsigned short data;
+
+
+ for (i = 0; i < 0x1A; i++) {
+ if (miiphy_read (addr, i, &data)) {
+ printf ("read error for reg %lx\n", i);
+ return;
+ }
+ printf ("Phy reg %lx ==> %4x\n", i, data);
+
+ /* jump to the next set of regs */
+ if (i == 0x07)
+ i = 0x0f;
+
+ } /* end for loop */
+} /* end dump */
+
+
+/***********************************************************/
+/* (Re)start autonegotiation */
+/***********************************************************/
+int phy_setup_aneg (unsigned char addr)
+{
+ unsigned short ctl, adv;
+
+ /* Setup standard advertise */
+ miiphy_read (addr, PHY_ANAR, &adv);
+ adv |= (PHY_ANLPAR_ACK | PHY_ANLPAR_RF | PHY_ANLPAR_T4 |
+ PHY_ANLPAR_TXFD | PHY_ANLPAR_TX | PHY_ANLPAR_10FD |
+ PHY_ANLPAR_10);
+ miiphy_write (addr, PHY_ANAR, adv);
+
+ /* Start/Restart aneg */
+ miiphy_read (addr, PHY_BMCR, &ctl);
+ ctl |= (PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
+ miiphy_write (addr, PHY_BMCR, ctl);
+
+ return 0;
+}
+
+
+/***********************************************************/
+/* read a phy reg and return the value with a rc */
+/***********************************************************/
+unsigned int miiphy_getemac_offset (void)
+{
+ unsigned long zmii;
+ unsigned long eoffset;
+
+ /* Need to find out which mdi port we're using */
+ zmii = in32 (ZMII_FER);
+
+ if (zmii & (ZMII_FER_MDI << ZMII_FER_V (0))) {
+ /* using port 0 */
+ eoffset = 0;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (1))) {
+ /* using port 1 */
+ eoffset = 0x100;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (2))) {
+ /* using port 2 */
+ eoffset = 0x400;
+ } else if (zmii & (ZMII_FER_MDI << ZMII_FER_V (3))) {
+ /* using port 3 */
+ eoffset = 0x600;
+ } else {
+ /* None of the mdi ports are enabled! */
+ /* enable port 0 */
+ zmii |= ZMII_FER_MDI << ZMII_FER_V (0);
+ out32 (ZMII_FER, zmii);
+ eoffset = 0;
+ /* need to soft reset port 0 */
+ zmii = in32 (EMAC_M0);
+ zmii |= EMAC_M0_SRST;
+ out32 (EMAC_M0, zmii);
+ }
+
+ return (eoffset);
+
+}
+
+
+int miiphy_read (unsigned char addr, unsigned char reg, unsigned short *value)
+{
+ unsigned long sta_reg; /* STA scratch area */
+ unsigned long i;
+ unsigned long emac_reg;
+
+
+ emac_reg = miiphy_getemac_offset ();
+ /* see if it is ready for 1000 nsec */
+ i = 0;
+
+ /* see if it is ready for sec */
+ while ((in32 (EMAC_STACR + emac_reg) & EMAC_STACR_OC) == 0) {
+ udelay (7);
+ if (i > 5) {
+#if 0
+ printf ("read err 1\n");
+#endif
+ return -1;
+ }
+ i++;
+ }
+ sta_reg = reg; /* reg address */
+ /* set clock (50Mhz) and read flags */
+#if defined(CONFIG_440_GX)
+ sta_reg |= EMAC_STACR_READ;
+#else
+ sta_reg = (sta_reg | EMAC_STACR_READ) & ~EMAC_STACR_CLK_100MHZ;
+#endif
+
+#if defined(CONFIG_PHY_CLK_FREQ) && !defined(CONFIG_440_GX)
+ sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ;
+#endif
+ sta_reg = sta_reg | (addr << 5); /* Phy address */
+
+ out32 (EMAC_STACR + emac_reg, sta_reg);
+#if 0 /* test-only */
+ printf ("a2: write: EMAC_STACR=0x%0x\n", sta_reg); /* test-only */
+#endif
+
+ sta_reg = in32 (EMAC_STACR + emac_reg);
+ i = 0;
+ while ((sta_reg & EMAC_STACR_OC) == 0) {
+ udelay (7);
+ if (i > 5) {
+ return -1;
+ }
+ i++;
+ sta_reg = in32 (EMAC_STACR + emac_reg);
+ }
+ if ((sta_reg & EMAC_STACR_PHYE) != 0) {
+ return -1;
+ }
+
+ *value = *(short *) (&sta_reg);
+ return 0;
+
+
+} /* phy_read */
+
+
+/***********************************************************/
+/* write a phy reg and return the value with a rc */
+/***********************************************************/
+
+int miiphy_write (unsigned char addr, unsigned char reg, unsigned short value)
+{
+ unsigned long sta_reg; /* STA scratch area */
+ unsigned long i;
+ unsigned long emac_reg;
+
+ emac_reg = miiphy_getemac_offset ();
+ /* see if it is ready for 1000 nsec */
+ i = 0;
+
+ while ((in32 (EMAC_STACR + emac_reg) & EMAC_STACR_OC) == 0) {
+ if (i > 5)
+ return -1;
+ udelay (7);
+ i++;
+ }
+ sta_reg = 0;
+ sta_reg = reg; /* reg address */
+ /* set clock (50Mhz) and read flags */
+#if defined(CONFIG_440_GX)
+ sta_reg |= EMAC_STACR_WRITE;
+#else
+ sta_reg = (sta_reg | EMAC_STACR_WRITE) & ~EMAC_STACR_CLK_100MHZ;
+#endif
+
+#if defined(CONFIG_PHY_CLK_FREQ) && !defined(CONFIG_440_GX)
+ sta_reg = sta_reg | CONFIG_PHY_CLK_FREQ; /* Set clock frequency (PLB freq. dependend) */
+#endif
+ sta_reg = sta_reg | ((unsigned long) addr << 5); /* Phy address */
+ memcpy (&sta_reg, &value, 2); /* put in data */
+
+ out32 (EMAC_STACR + emac_reg, sta_reg);
+
+ /* wait for completion */
+ i = 0;
+ sta_reg = in32 (EMAC_STACR + emac_reg);
+ while ((sta_reg & EMAC_STACR_OC) == 0) {
+ udelay (7);
+ if (i > 5)
+ return -1;
+ i++;
+ sta_reg = in32 (EMAC_STACR + emac_reg);
+ }
+
+ if ((sta_reg & EMAC_STACR_PHYE) != 0)
+ return -1;
+ return 0;
+
+} /* phy_write */
+
+#endif /* CONFIG_405GP */
diff --git a/cpu/ppc4xx/serial.c b/cpu/ppc4xx/serial.c
index 6b0e39a..2c77338 100644
--- a/cpu/ppc4xx/serial.c
+++ b/cpu/ppc4xx/serial.c
@@ -271,9 +271,15 @@ int serial_tstc ()
#if defined(CONFIG_440)
#define UART0_BASE CFG_PERIPHERAL_BASE + 0x00000200
#define UART1_BASE CFG_PERIPHERAL_BASE + 0x00000300
+#if defined(CONFIG_440_GX)
+#define CR0_MASK 0xdfffffff
+#define CR0_EXTCLK_ENA 0x00800000
+#define CR0_UDIV_POS 0
+#else
#define CR0_MASK 0x3fff0000
#define CR0_EXTCLK_ENA 0x00600000
#define CR0_UDIV_POS 16
+#endif /* CONFIG_440_GX */
#elif defined(CONFIG_405EP)
#define UART0_BASE 0xef600300
#define UART1_BASE 0xef600400
@@ -295,9 +301,17 @@ int serial_tstc ()
#if defined(CONFIG_UART1_CONSOLE)
#define ACTING_UART0_BASE UART1_BASE
#define ACTING_UART1_BASE UART0_BASE
+#if defined(CONFIG_440_GX)
+#define UART0_SDR sdr_uart1
+#define UART1_SDR sdr_uart0
+#endif /* CONFIG_440_GX */
#else
#define ACTING_UART0_BASE UART0_BASE
#define ACTING_UART1_BASE UART1_BASE
+#if defined(CONFIG_440_GX)
+#define UART0_SDR sdr_uart0
+#define UART1_SDR sdr_uart1
+#endif /* CONFIG_440_GX */
#endif
#if defined(CONFIG_405EP) && defined(CFG_EXT_SERIAL_CLOCK)
@@ -416,7 +430,12 @@ int serial_init (void)
unsigned long tmp;
#endif
+#if defined(CONFIG_440_GX)
+ mfsdr(UART0_SDR,reg);
+ reg &= ~CR0_MASK;
+#else
reg = mfdcr(cntrl0) & ~CR0_MASK;
+#endif /* CONFIG_440_GX */
#ifdef CFG_EXT_SERIAL_CLOCK
reg |= CR0_EXTCLK_ENA;
udiv = 1;
@@ -430,9 +449,13 @@ int serial_init (void)
serial_divs (gd->baudrate, &udiv, &bdiv);
#endif
+#if defined(CONFIG_440_GX)
+ reg |= udiv << CR0_UDIV_POS; /* set the UART divisor */
+ mtsdr (UART0_SDR,reg);
+#else
reg |= (udiv - 1) << CR0_UDIV_POS; /* set the UART divisor */
mtdcr (cntrl0, reg);
-
+#endif
out8 (ACTING_UART0_BASE + UART_LCR, 0x80); /* set DLAB bit */
out8 (ACTING_UART0_BASE + UART_DLL, bdiv); /* set baudrate divisor */
out8 (ACTING_UART0_BASE + UART_DLM, bdiv >> 8);/* set baudrate divisor */
diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
index 7263227..dfd2a04 100644
--- a/cpu/ppc4xx/speed.c
+++ b/cpu/ppc4xx/speed.c
@@ -206,6 +206,7 @@ ulong get_PCI_freq (void)
#elif defined(CONFIG_440)
+#if !defined(CONFIG_440_GX)
void get_sys_info (sys_info_t * sysInfo)
{
unsigned long strp0;
@@ -237,6 +238,58 @@ void get_sys_info (sys_info_t * sysInfo)
sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
}
+#else
+void get_sys_info (sys_info_t * sysInfo)
+{
+ unsigned long strp0;
+ unsigned long strp1;
+ unsigned long temp;
+ unsigned long temp1;
+ unsigned long lfdiv;
+ unsigned long m;
+
+
+ /* Extract configured divisors */
+ mfsdr( sdr_sdstp0,strp0 );
+ mfsdr( sdr_sdstp1,strp1 );
+
+ temp = ((strp0 & PLLSYS0_FWD_DIV_A_MASK) >> 8);
+ sysInfo->pllFwdDivA = temp ? temp : 16 ;
+ temp = ((strp0 & PLLSYS0_FWD_DIV_B_MASK) >> 5);
+ sysInfo->pllFwdDivB = temp ? temp: 8 ;
+ temp = (strp0 & PLLSYS0_FB_DIV_MASK) >> 12;
+ sysInfo->pllFbkDiv = temp ? temp : 32;
+ temp = (strp0 & PLLSYS0_OPB_DIV_MASK);
+ sysInfo->pllOpbDiv = temp ? temp : 4;
+ temp = (strp1 & PLLSYS1_PERCLK_DIV_MASK) >> 24;
+ sysInfo->pllExtBusDiv = temp ? temp : 4;
+
+ /* Calculate 'M' based on feedback source */
+ temp = (strp0 & PLLSYS0_SEL_MASK) >> 27;
+ temp1 = (strp1 & PLLSYS1_LF_DIV_MASK) >> 26;
+ lfdiv = temp1 ? temp1 : 64;
+ if (temp == 0) { /* PLL output */
+ /* Figure which pll to use */
+ temp = (strp0 & PLLSYS0_SRC_MASK) >> 30;
+ if (!temp)
+ m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivA;
+ else
+ m = sysInfo->pllFbkDiv * lfdiv * sysInfo->pllFwdDivB;
+ }
+ else if (temp == 1) /* CPU output */
+ m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivA;
+ else /* PerClk */
+ m = sysInfo->pllExtBusDiv * sysInfo->pllOpbDiv * sysInfo->pllFwdDivB;
+
+ /* Now calculate the individual clocks */
+ sysInfo->freqVCOMhz = (m * CONFIG_SYS_CLK_FREQ) + (m>>1);
+ sysInfo->freqProcessor = sysInfo->freqVCOMhz/sysInfo->pllFwdDivA;
+ sysInfo->freqPLB = sysInfo->freqVCOMhz/sysInfo->pllFwdDivB;
+ sysInfo->freqOPB = sysInfo->freqPLB/sysInfo->pllOpbDiv;
+ sysInfo->freqEPB = sysInfo->freqOPB/sysInfo->pllExtBusDiv;
+
+}
+#endif
ulong get_OPB_freq (void)
{
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index e25101a..3473baa 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -166,7 +166,12 @@ _start_440:
mtspr srr1,r0
mtspr csrr0,r0
mtspr csrr1,r0
-
+#if defined (CONFIG_440_GX) /* NOTE: 440GX adds machine check status regs */
+ mtspr mcsrr0,r0
+ mtspr mcsrr1,r0
+ mfspr r1, mcsr
+ mtspr mcsr,r1
+#endif
/*----------------------------------------------------------------*/
/* Initialize debug */
/*----------------------------------------------------------------*/
@@ -335,9 +340,23 @@ _start:
mtspr tcr,r0 /* disable all */
mtspr esr,r0 /* clear exception syndrome register */
mtxer r0 /* clear integer exception register */
+#if !defined(CONFIG_440_GX)
lis r1,0x0002 /* set CE bit (Critical Exceptions) */
ori r1,r1,0x1000 /* set ME bit (Machine Exceptions) */
mtmsr r1 /* change MSR */
+#else
+ bl __440gx_msr_set
+ b __440gx_msr_continue
+
+__440gx_msr_set:
+ lis r1, 0x0002 /* set CE bit (Critical Exceptions) */
+ ori r1,r1,0x1000 /* set ME bit (Machine Exceptions) */
+ mtspr srr1,r1
+ mflr r1
+ mtspr srr0,r1
+ rfi
+__440gx_msr_continue:
+#endif
/*----------------------------------------------------------------*/
/* Debug setup -- some (not very good) ice's need an event*/
@@ -358,6 +377,9 @@ _start:
/* Setup the internal SRAM */
/*----------------------------------------------------------------*/
li r0,0
+#if defined (CONFIG_440_GX)
+ mtdcr l2_cache_cfg,r0 /* Ensure L2 Cache is off */
+#endif
mtdcr isram0_sb1cr,r0 /* Disable bank 1 */
li r2,0x7fff
@@ -370,8 +392,22 @@ _start:
mtdcr isram0_pmeg,r1
lis r1,0x8000 /* BAS = 8000_0000 */
+#if defined(CONFIG_440_GX)
+ ori r1,r1,0x0980 /* first 64k */
+ mtdcr isram0_sb0cr,r1
+ lis r1,0x8001
+ ori r1,r1,0x0980 /* second 64k */
+ mtdcr isram0_sb1cr,r1
+ lis r1, 0x8002
+ ori r1,r1, 0x0980 /* third 64k */
+ mtdcr isram0_sb2cr,r1
+ lis r1, 0x8003
+ ori r1,r1, 0x0980 /* fourth 64k */
+ mtdcr isram0_sb3cr,r1
+#else
ori r1,r1,0x0380 /* 8k rw */
mtdcr isram0_sb0cr,r1
+#endif
/*----------------------------------------------------------------*/
/* Setup the stack in internal SRAM */
@@ -921,7 +957,12 @@ invalidate_icache:
invalidate_dcache:
addi r6,0,0x0000 /* clear GPR 6 */
/* Do loop for # of dcache congruence classes. */
+#if defined(CONFIG_440_GX)
+ lis r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS for large sized cache */
+ ori r7, r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
+#else
addi r7,r0, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)
+#endif
/* NOTE: dccci invalidates both */
mtctr r7 /* ways in the D cache */
..dcloop:
@@ -942,8 +983,15 @@ flush_dcache:
mtdccr r10
/* do loop for # of congruence classes. */
+#if defined(CONFIG_440_GX)
+ lis r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS: for large cache sizes */
+ ori r10,r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l
+ lis r11,(CFG_DCACHE_SIZE / 2)@ha /* D cache set size - 2 way sets */
+ ori r11,r11,(CFG_DCACHE_SIZE / 2)@l /* D cache set size - 2 way sets */
+#else
addi r10,r0,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)
addi r11,r0,(CFG_DCACHE_SIZE / 2) /* D cache set size - 2 way sets */
+#endif
mtctr r10
addi r10,r0,(0xE000-0x10000) /* start at 0xFFFFE000 */
add r11,r10,r11 /* add to get to other side of cache line */
generated by cgit v1.1 at 2024-11-28 05:06:39 +0000