[U-Boot-Users] resend#2 [PATCH 7/8] ColdFire: MCF547x_8x - Add M547xEVB and M548xEVB board
Tsi-Chung Liew
Tsi-Chung.Liew at freescale.com
Wed Jan 16 01:23:07 CET 2008
Signed-off-by: TsiChungLiew <Tsi-Chung.Liew at freescale.com>
---
board/freescale/m547xevb/Makefile | 44 +++++
board/freescale/m547xevb/config.mk | 25 +++
board/freescale/m547xevb/m547xevb.c | 115 +++++++++++++
board/freescale/m547xevb/mii.c | 322 +++++++++++++++++++++++++++++++++++
board/freescale/m547xevb/u-boot.lds | 143 ++++++++++++++++
board/freescale/m548xevb/Makefile | 44 +++++
board/freescale/m548xevb/config.mk | 25 +++
board/freescale/m548xevb/m548xevb.c | 115 +++++++++++++
board/freescale/m548xevb/mii.c | 322 +++++++++++++++++++++++++++++++++++
board/freescale/m548xevb/u-boot.lds | 143 ++++++++++++++++
10 files changed, 1298 insertions(+), 0 deletions(-)
create mode 100644 board/freescale/m547xevb/Makefile
create mode 100644 board/freescale/m547xevb/config.mk
create mode 100644 board/freescale/m547xevb/m547xevb.c
create mode 100644 board/freescale/m547xevb/mii.c
create mode 100644 board/freescale/m547xevb/u-boot.lds
create mode 100644 board/freescale/m548xevb/Makefile
create mode 100644 board/freescale/m548xevb/config.mk
create mode 100644 board/freescale/m548xevb/m548xevb.c
create mode 100644 board/freescale/m548xevb/mii.c
create mode 100644 board/freescale/m548xevb/u-boot.lds
diff --git a/board/freescale/m547xevb/Makefile b/board/freescale/m547xevb/Makefile
new file mode 100644
index 0000000..74c2528
--- /dev/null
+++ b/board/freescale/m547xevb/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS = $(BOARD).o mii.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/m547xevb/config.mk b/board/freescale/m547xevb/config.mk
new file mode 100644
index 0000000..fa66b75
--- /dev/null
+++ b/board/freescale/m547xevb/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+# Coldfire contribution by Bernhard Kuhn <bkuhn at metrowerks.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+TEXT_BASE = 0xFF800000
diff --git a/board/freescale/m547xevb/m547xevb.c b/board/freescale/m547xevb/m547xevb.c
new file mode 100644
index 0000000..0286084
--- /dev/null
+++ b/board/freescale/m547xevb/m547xevb.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <pci.h>
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale FireEngine 5475 EVB\n");
+ return 0;
+};
+
+long int initdram(int board_type)
+{
+ volatile siu_t *siu = (siu_t *) (MMAP_SIU);
+ volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
+ u32 dramsize, i;
+
+ siu->drv = CFG_SDRAM_DRVSTRENGTH;
+
+ dramsize = CFG_DRAMSZ * 0x100000;
+ for (i = 0x13; i < 0x20; i++) {
+ if (dramsize == (1 << i))
+ break;
+ }
+ i--;
+ siu->cs0cfg = (CFG_SDRAM_BASE | i);
+
+#ifdef CFG_DRAMSZ1
+ temp = CFG_DRAMSZ1 * 0x100000;
+ for (i = 0x13; i < 0x20; i++) {
+ if (temp == (1 << i))
+ break;
+ }
+ i--;
+ dramsize += temp;
+ siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
+#endif
+
+ sdram->cfg1 = CFG_SDRAM_CFG1;
+ sdram->cfg2 = CFG_SDRAM_CFG2;
+
+ /* Issue PALL */
+ sdram->ctrl = CFG_SDRAM_CTRL | 2;
+
+ /* Issue LEMR */
+ sdram->mode = CFG_SDRAM_EMOD;
+ sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
+
+ udelay(500);
+
+ /* Issue PALL */
+ sdram->ctrl = (CFG_SDRAM_CTRL | 2);
+
+ /* Perform two refresh cycles */
+ sdram->ctrl = CFG_SDRAM_CTRL | 4;
+ sdram->ctrl = CFG_SDRAM_CTRL | 4;
+
+ sdram->mode = CFG_SDRAM_MODE;
+
+ sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
+
+ udelay(100);
+
+ return dramsize;
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}
+
+#if defined(CONFIG_PCI)
+/*
+ * Initialize PCI devices, report devices found.
+ */
+static struct pci_controller hose;
+extern void pci_mcf547x_8x_init(struct pci_controller *hose);
+
+void pci_init_board(void)
+{
+ pci_mcf547x_8x_init(&hose);
+}
+#endif /* CONFIG_PCI */
diff --git a/board/freescale/m547xevb/mii.c b/board/freescale/m547xevb/mii.c
new file mode 100644
index 0000000..5b2683b
--- /dev/null
+++ b/board/freescale/m547xevb/mii.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <net.h>
+
+#include <asm/immap.h>
+#include <asm/fec.h>
+#include <asm/fsl_mcdmafec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
+#undef MII_DEBUG
+#undef ET_DEBUG
+
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+ volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+ struct fec_info_dma *info = (struct fec_info_dma *)dev->priv;
+
+ if (setclear) {
+ if (info->iobase == CFG_FEC0_IOBASE)
+ gpio->par_feci2cirq |= 0xF000;
+ else
+ gpio->par_feci2cirq |= 0x0FC0;
+ } else {
+ if (info->iobase == CFG_FEC0_IOBASE)
+ gpio->par_feci2cirq &= 0x0FFF;
+ else
+ gpio->par_feci2cirq &= 0xF03F;
+ }
+ return 0;
+}
+
+#if defined(CFG_DISCOVER_PHY) || defined(CONFIG_CMD_MII)
+#include <miiphy.h>
+
+/* Make MII read/write commands for the FEC. */
+#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | (REG & 0x1f) << 18))
+
+#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | (REG & 0x1f) << 18) | (VAL & 0xffff))
+
+/* PHY identification */
+#define PHY_ID_LXT970 0x78100000 /* LXT970 */
+#define PHY_ID_LXT971 0x001378e0 /* LXT971 and 972 */
+#define PHY_ID_82555 0x02a80150 /* Intel 82555 */
+#define PHY_ID_QS6612 0x01814400 /* QS6612 */
+#define PHY_ID_AMD79C784 0x00225610 /* AMD 79C784 */
+#define PHY_ID_LSI80225 0x0016f870 /* LSI 80225 */
+#define PHY_ID_LSI80225B 0x0016f880 /* LSI 80225/B */
+#define PHY_ID_DP83848VV 0x20005C90 /* National 83848 */
+#define PHY_ID_DP83849 0x20005CA2 /* National 82849 */
+#define PHY_ID_BCM5222 0x00406322 /* Broadcom 5222 */
+
+#define STR_ID_LXT970 "LXT970"
+#define STR_ID_LXT971 "LXT971"
+#define STR_ID_82555 "Intel82555"
+#define STR_ID_QS6612 "QS6612"
+#define STR_ID_AMD79C784 "AMD79C784"
+#define STR_ID_LSI80225 "LSI80225"
+#define STR_ID_LSI80225B "LSI80225/B"
+#define STR_ID_DP83848VV "N83848"
+#define STR_ID_DP83849 "N83849"
+#define STR_ID_BCM5222 "BCM5222"
+
+/****************************************************************************
+ * mii_init -- Initialize the MII for MII command without ethernet
+ * This function is a subset of eth_init
+ ****************************************************************************
+ */
+void mii_reset(struct fec_info_dma *info)
+{
+ volatile fecdma_t *fecp = (fecdma_t *) (info->miibase);
+ int i;
+
+ fecp->ecr = FEC_ECR_RESET;
+ for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
+ udelay(1);
+ }
+ if (i == FEC_RESET_DELAY) {
+ printf("FEC_RESET_DELAY timeout\n");
+ }
+}
+
+/* send command to phy using mii, wait for result */
+uint mii_send(uint mii_cmd)
+{
+ struct fec_info_dma *info;
+ struct eth_device *dev;
+ volatile fecdma_t *ep;
+ uint mii_reply;
+ int j = 0;
+
+ /* retrieve from register structure */
+ dev = eth_get_dev();
+ info = dev->priv;
+
+ ep = (fecdma_t *) info->miibase;
+
+ ep->mmfr = mii_cmd; /* command to phy */
+
+ /* wait for mii complete */
+ while (!(ep->eir & FEC_EIR_MII) && (j < MCFFEC_TOUT_LOOP)) {
+ udelay(1);
+ j++;
+ }
+ if (j >= MCFFEC_TOUT_LOOP) {
+ printf("MII not complete\n");
+ return -1;
+ }
+
+ mii_reply = ep->mmfr; /* result from phy */
+ ep->eir = FEC_EIR_MII; /* clear MII complete */
+#ifdef ET_DEBUG
+ printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n",
+ __FILE__, __LINE__, __FUNCTION__, mii_cmd, mii_reply);
+#endif
+
+ return (mii_reply & 0xffff); /* data read from phy */
+}
+#endif /* CFG_DISCOVER_PHY || CONFIG_CMD_MII */
+
+#if defined(CFG_DISCOVER_PHY)
+int mii_discover_phy(struct eth_device *dev)
+{
+#define MAX_PHY_PASSES 11
+ struct fec_info_dma *info = dev->priv;
+ int phyaddr, pass, temp;
+ uint phyno, phytype;
+
+ if (info->phyname_init) {
+ return info->phy_addr;
+ }
+
+ phyaddr = -1; /* didn't find a PHY yet */
+ for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
+ if (pass > 1) {
+ /* PHY may need more time to recover from reset.
+ * The LXT970 needs 50ms typical, no maximum is
+ * specified, so wait 10ms before try again.
+ * With 11 passes this gives it 100ms to wake up.
+ */
+ udelay(10000); /* wait 10ms */
+ }
+
+ temp = 0;
+ if (info->index > 0) {
+ /* Some phy have multiple address, to solve the issue
+ where phyno keeps starting from 0, check the
+ previous phy address if both miibase are the same. */
+ if (info->miibase == (info->next)->miibase) {
+ temp = (info->next)->phy_addr + 1;
+ }
+ }
+
+ for (phyno = temp; phyno < 32 && phyaddr < 0; ++phyno) {
+
+ phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1));
+#ifdef ET_DEBUG
+ printf("PHY type 0x%x pass %d type\n", phytype, pass);
+#endif
+ if (phytype != 0xffff) {
+ phyaddr = phyno;
+ phytype <<= 16;
+ phytype |=
+ mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
+
+ switch (phytype & 0xffffffff) {
+ case PHY_ID_BCM5222:
+ strcpy(info->phy_name, STR_ID_BCM5222);
+ info->phyname_init = 1;
+ break;
+ default:
+ strcpy(info->phy_name, "unknown");
+ info->phyname_init = 1;
+ break;
+ }
+
+#ifdef ET_DEBUG
+ printf("PHY @ 0x%x pass %d type ", phyno, pass);
+ switch (phytype & 0xffffffff) {
+ case PHY_ID_BCM5222:
+ printf(STR_ID_BCM5222);
+ break;
+ default:
+ printf("0x%08x\n", phytype);
+ break;
+ }
+#endif
+ }
+ }
+ }
+ if (phyaddr < 0)
+ printf("No PHY device found.\n");
+
+ return phyaddr;
+}
+#endif /* CFG_DISCOVER_PHY */
+
+void mii_init(void) __attribute__ ((weak, alias("__mii_init")));
+
+void __mii_init(void)
+{
+ volatile fecdma_t *fecp;
+ struct fec_info_dma *info;
+ struct eth_device *dev;
+ int miispd = 0, i = 0;
+ u16 autoneg = 0;
+
+ /* retrieve from register structure */
+ dev = eth_get_dev();
+ info = dev->priv;
+
+ fecp = (fecdma_t *) info->miibase;
+
+ fecpin_setclear(dev, 1);
+
+ mii_reset(info);
+
+ /* We use strictly polling mode only */
+ fecp->eimr = 0;
+
+ /* Clear any pending interrupt */
+ fecp->eir = 0xffffffff;
+
+ /* Set MII speed */
+ miispd = (gd->bus_clk / 1000000) / 5;
+ fecp->mscr = miispd << 1;
+
+ info->phy_addr = mii_discover_phy(dev);
+
+#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS)
+ while (i < MCFFEC_TOUT_LOOP) {
+ autoneg = 0;
+ miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg);
+ i++;
+
+ if ((autoneg & AUTONEGLINK) == AUTONEGLINK)
+ break;
+
+ udelay(500);
+ }
+ if (i >= MCFFEC_TOUT_LOOP) {
+ printf("Auto Negotiation not complete\n");
+ }
+
+ /* adapt to the half/full speed settings */
+ info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
+ info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
+}
+
+/*****************************************************************************
+ * Read and write a MII PHY register, routines used by MII Utilities
+ *
+ * FIXME: These routines are expected to return 0 on success, but mii_send
+ * does _not_ return an error code. Maybe 0xFFFF means error, i.e.
+ * no PHY connected...
+ * For now always return 0.
+ * FIXME: These routines only work after calling eth_init() at least once!
+ * Otherwise they hang in mii_send() !!! Sorry!
+ *****************************************************************************/
+
+int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg,
+ unsigned short *value)
+{
+ short rdreg; /* register working value */
+
+#ifdef MII_DEBUG
+ printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr);
+#endif
+ rdreg = mii_send(mk_mii_read(addr, reg));
+
+ *value = rdreg;
+
+#ifdef MII_DEBUG
+ printf("0x%04x\n", *value);
+#endif
+
+ return 0;
+}
+
+int mcffec_miiphy_write(char *devname, unsigned char addr, unsigned char reg,
+ unsigned short value)
+{
+ short rdreg; /* register working value */
+
+#ifdef MII_DEBUG
+ printf("miiphy_write(0x%x) @ 0x%x = ", reg, addr);
+#endif
+
+ rdreg = mii_send(mk_mii_write(addr, reg, value));
+
+#ifdef MII_DEBUG
+ printf("0x%04x\n", value);
+#endif
+
+ return 0;
+}
+
+#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
diff --git a/board/freescale/m547xevb/u-boot.lds b/board/freescale/m547xevb/u-boot.lds
new file mode 100644
index 0000000..c10472a
--- /dev/null
+++ b/board/freescale/m547xevb/u-boot.lds
@@ -0,0 +1,143 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mcf547x_8x/start.o (.text)
+ lib_m68k/traps.o (.text)
+ lib_m68k/interrupts.o (.text)
+ common/dlmalloc.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+
+ .reloc :
+ {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ _sbss = .;
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = .;
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
diff --git a/board/freescale/m548xevb/Makefile b/board/freescale/m548xevb/Makefile
new file mode 100644
index 0000000..74c2528
--- /dev/null
+++ b/board/freescale/m548xevb/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS = $(BOARD).o mii.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/m548xevb/config.mk b/board/freescale/m548xevb/config.mk
new file mode 100644
index 0000000..fa66b75
--- /dev/null
+++ b/board/freescale/m548xevb/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+# Coldfire contribution by Bernhard Kuhn <bkuhn at metrowerks.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+TEXT_BASE = 0xFF800000
diff --git a/board/freescale/m548xevb/m548xevb.c b/board/freescale/m548xevb/m548xevb.c
new file mode 100644
index 0000000..0372807
--- /dev/null
+++ b/board/freescale/m548xevb/m548xevb.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <pci.h>
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale FireEngine 5485 EVB\n");
+ return 0;
+};
+
+long int initdram(int board_type)
+{
+ volatile siu_t *siu = (siu_t *) (MMAP_SIU);
+ volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
+ u32 dramsize, i;
+
+ siu->drv = CFG_SDRAM_DRVSTRENGTH;
+
+ dramsize = CFG_DRAMSZ * 0x100000;
+ for (i = 0x13; i < 0x20; i++) {
+ if (dramsize == (1 << i))
+ break;
+ }
+ i--;
+ siu->cs0cfg = (CFG_SDRAM_BASE | i);
+
+#ifdef CFG_DRAMSZ1
+ temp = CFG_DRAMSZ1 * 0x100000;
+ for (i = 0x13; i < 0x20; i++) {
+ if (temp == (1 << i))
+ break;
+ }
+ i--;
+ dramsize += temp;
+ siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
+#endif
+
+ sdram->cfg1 = CFG_SDRAM_CFG1;
+ sdram->cfg2 = CFG_SDRAM_CFG2;
+
+ /* Issue PALL */
+ sdram->ctrl = CFG_SDRAM_CTRL | 2;
+
+ /* Issue LEMR */
+ sdram->mode = CFG_SDRAM_EMOD;
+ sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
+
+ udelay(500);
+
+ /* Issue PALL */
+ sdram->ctrl = (CFG_SDRAM_CTRL | 2);
+
+ /* Perform two refresh cycles */
+ sdram->ctrl = CFG_SDRAM_CTRL | 4;
+ sdram->ctrl = CFG_SDRAM_CTRL | 4;
+
+ sdram->mode = CFG_SDRAM_MODE;
+
+ sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
+
+ udelay(100);
+
+ return dramsize;
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}
+
+#if defined(CONFIG_PCI)
+/*
+ * Initialize PCI devices, report devices found.
+ */
+static struct pci_controller hose;
+extern void pci_mcf547x_8x_init(struct pci_controller *hose);
+
+void pci_init_board(void)
+{
+ pci_mcf547x_8x_init(&hose);
+}
+#endif /* CONFIG_PCI */
diff --git a/board/freescale/m548xevb/mii.c b/board/freescale/m548xevb/mii.c
new file mode 100644
index 0000000..5b2683b
--- /dev/null
+++ b/board/freescale/m548xevb/mii.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <net.h>
+
+#include <asm/immap.h>
+#include <asm/fec.h>
+#include <asm/fsl_mcdmafec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
+#undef MII_DEBUG
+#undef ET_DEBUG
+
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+ volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+ struct fec_info_dma *info = (struct fec_info_dma *)dev->priv;
+
+ if (setclear) {
+ if (info->iobase == CFG_FEC0_IOBASE)
+ gpio->par_feci2cirq |= 0xF000;
+ else
+ gpio->par_feci2cirq |= 0x0FC0;
+ } else {
+ if (info->iobase == CFG_FEC0_IOBASE)
+ gpio->par_feci2cirq &= 0x0FFF;
+ else
+ gpio->par_feci2cirq &= 0xF03F;
+ }
+ return 0;
+}
+
+#if defined(CFG_DISCOVER_PHY) || defined(CONFIG_CMD_MII)
+#include <miiphy.h>
+
+/* Make MII read/write commands for the FEC. */
+#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | (REG & 0x1f) << 18))
+
+#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | (REG & 0x1f) << 18) | (VAL & 0xffff))
+
+/* PHY identification */
+#define PHY_ID_LXT970 0x78100000 /* LXT970 */
+#define PHY_ID_LXT971 0x001378e0 /* LXT971 and 972 */
+#define PHY_ID_82555 0x02a80150 /* Intel 82555 */
+#define PHY_ID_QS6612 0x01814400 /* QS6612 */
+#define PHY_ID_AMD79C784 0x00225610 /* AMD 79C784 */
+#define PHY_ID_LSI80225 0x0016f870 /* LSI 80225 */
+#define PHY_ID_LSI80225B 0x0016f880 /* LSI 80225/B */
+#define PHY_ID_DP83848VV 0x20005C90 /* National 83848 */
+#define PHY_ID_DP83849 0x20005CA2 /* National 82849 */
+#define PHY_ID_BCM5222 0x00406322 /* Broadcom 5222 */
+
+#define STR_ID_LXT970 "LXT970"
+#define STR_ID_LXT971 "LXT971"
+#define STR_ID_82555 "Intel82555"
+#define STR_ID_QS6612 "QS6612"
+#define STR_ID_AMD79C784 "AMD79C784"
+#define STR_ID_LSI80225 "LSI80225"
+#define STR_ID_LSI80225B "LSI80225/B"
+#define STR_ID_DP83848VV "N83848"
+#define STR_ID_DP83849 "N83849"
+#define STR_ID_BCM5222 "BCM5222"
+
+/****************************************************************************
+ * mii_init -- Initialize the MII for MII command without ethernet
+ * This function is a subset of eth_init
+ ****************************************************************************
+ */
+void mii_reset(struct fec_info_dma *info)
+{
+ volatile fecdma_t *fecp = (fecdma_t *) (info->miibase);
+ int i;
+
+ fecp->ecr = FEC_ECR_RESET;
+ for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
+ udelay(1);
+ }
+ if (i == FEC_RESET_DELAY) {
+ printf("FEC_RESET_DELAY timeout\n");
+ }
+}
+
+/* send command to phy using mii, wait for result */
+uint mii_send(uint mii_cmd)
+{
+ struct fec_info_dma *info;
+ struct eth_device *dev;
+ volatile fecdma_t *ep;
+ uint mii_reply;
+ int j = 0;
+
+ /* retrieve from register structure */
+ dev = eth_get_dev();
+ info = dev->priv;
+
+ ep = (fecdma_t *) info->miibase;
+
+ ep->mmfr = mii_cmd; /* command to phy */
+
+ /* wait for mii complete */
+ while (!(ep->eir & FEC_EIR_MII) && (j < MCFFEC_TOUT_LOOP)) {
+ udelay(1);
+ j++;
+ }
+ if (j >= MCFFEC_TOUT_LOOP) {
+ printf("MII not complete\n");
+ return -1;
+ }
+
+ mii_reply = ep->mmfr; /* result from phy */
+ ep->eir = FEC_EIR_MII; /* clear MII complete */
+#ifdef ET_DEBUG
+ printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n",
+ __FILE__, __LINE__, __FUNCTION__, mii_cmd, mii_reply);
+#endif
+
+ return (mii_reply & 0xffff); /* data read from phy */
+}
+#endif /* CFG_DISCOVER_PHY || CONFIG_CMD_MII */
+
+#if defined(CFG_DISCOVER_PHY)
+int mii_discover_phy(struct eth_device *dev)
+{
+#define MAX_PHY_PASSES 11
+ struct fec_info_dma *info = dev->priv;
+ int phyaddr, pass, temp;
+ uint phyno, phytype;
+
+ if (info->phyname_init) {
+ return info->phy_addr;
+ }
+
+ phyaddr = -1; /* didn't find a PHY yet */
+ for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
+ if (pass > 1) {
+ /* PHY may need more time to recover from reset.
+ * The LXT970 needs 50ms typical, no maximum is
+ * specified, so wait 10ms before try again.
+ * With 11 passes this gives it 100ms to wake up.
+ */
+ udelay(10000); /* wait 10ms */
+ }
+
+ temp = 0;
+ if (info->index > 0) {
+ /* Some phy have multiple address, to solve the issue
+ where phyno keeps starting from 0, check the
+ previous phy address if both miibase are the same. */
+ if (info->miibase == (info->next)->miibase) {
+ temp = (info->next)->phy_addr + 1;
+ }
+ }
+
+ for (phyno = temp; phyno < 32 && phyaddr < 0; ++phyno) {
+
+ phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1));
+#ifdef ET_DEBUG
+ printf("PHY type 0x%x pass %d type\n", phytype, pass);
+#endif
+ if (phytype != 0xffff) {
+ phyaddr = phyno;
+ phytype <<= 16;
+ phytype |=
+ mii_send(mk_mii_read(phyno, PHY_PHYIDR2));
+
+ switch (phytype & 0xffffffff) {
+ case PHY_ID_BCM5222:
+ strcpy(info->phy_name, STR_ID_BCM5222);
+ info->phyname_init = 1;
+ break;
+ default:
+ strcpy(info->phy_name, "unknown");
+ info->phyname_init = 1;
+ break;
+ }
+
+#ifdef ET_DEBUG
+ printf("PHY @ 0x%x pass %d type ", phyno, pass);
+ switch (phytype & 0xffffffff) {
+ case PHY_ID_BCM5222:
+ printf(STR_ID_BCM5222);
+ break;
+ default:
+ printf("0x%08x\n", phytype);
+ break;
+ }
+#endif
+ }
+ }
+ }
+ if (phyaddr < 0)
+ printf("No PHY device found.\n");
+
+ return phyaddr;
+}
+#endif /* CFG_DISCOVER_PHY */
+
+void mii_init(void) __attribute__ ((weak, alias("__mii_init")));
+
+void __mii_init(void)
+{
+ volatile fecdma_t *fecp;
+ struct fec_info_dma *info;
+ struct eth_device *dev;
+ int miispd = 0, i = 0;
+ u16 autoneg = 0;
+
+ /* retrieve from register structure */
+ dev = eth_get_dev();
+ info = dev->priv;
+
+ fecp = (fecdma_t *) info->miibase;
+
+ fecpin_setclear(dev, 1);
+
+ mii_reset(info);
+
+ /* We use strictly polling mode only */
+ fecp->eimr = 0;
+
+ /* Clear any pending interrupt */
+ fecp->eir = 0xffffffff;
+
+ /* Set MII speed */
+ miispd = (gd->bus_clk / 1000000) / 5;
+ fecp->mscr = miispd << 1;
+
+ info->phy_addr = mii_discover_phy(dev);
+
+#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS)
+ while (i < MCFFEC_TOUT_LOOP) {
+ autoneg = 0;
+ miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg);
+ i++;
+
+ if ((autoneg & AUTONEGLINK) == AUTONEGLINK)
+ break;
+
+ udelay(500);
+ }
+ if (i >= MCFFEC_TOUT_LOOP) {
+ printf("Auto Negotiation not complete\n");
+ }
+
+ /* adapt to the half/full speed settings */
+ info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
+ info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
+}
+
+/*****************************************************************************
+ * Read and write a MII PHY register, routines used by MII Utilities
+ *
+ * FIXME: These routines are expected to return 0 on success, but mii_send
+ * does _not_ return an error code. Maybe 0xFFFF means error, i.e.
+ * no PHY connected...
+ * For now always return 0.
+ * FIXME: These routines only work after calling eth_init() at least once!
+ * Otherwise they hang in mii_send() !!! Sorry!
+ *****************************************************************************/
+
+int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg,
+ unsigned short *value)
+{
+ short rdreg; /* register working value */
+
+#ifdef MII_DEBUG
+ printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr);
+#endif
+ rdreg = mii_send(mk_mii_read(addr, reg));
+
+ *value = rdreg;
+
+#ifdef MII_DEBUG
+ printf("0x%04x\n", *value);
+#endif
+
+ return 0;
+}
+
+int mcffec_miiphy_write(char *devname, unsigned char addr, unsigned char reg,
+ unsigned short value)
+{
+ short rdreg; /* register working value */
+
+#ifdef MII_DEBUG
+ printf("miiphy_write(0x%x) @ 0x%x = ", reg, addr);
+#endif
+
+ rdreg = mii_send(mk_mii_write(addr, reg, value));
+
+#ifdef MII_DEBUG
+ printf("0x%04x\n", value);
+#endif
+
+ return 0;
+}
+
+#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
diff --git a/board/freescale/m548xevb/u-boot.lds b/board/freescale/m548xevb/u-boot.lds
new file mode 100644
index 0000000..c10472a
--- /dev/null
+++ b/board/freescale/m548xevb/u-boot.lds
@@ -0,0 +1,143 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mcf547x_8x/start.o (.text)
+ lib_m68k/traps.o (.text)
+ lib_m68k/interrupts.o (.text)
+ common/dlmalloc.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+
+ .reloc :
+ {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ _sbss = .;
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = .;
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
--
1.5.2
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