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-rw-r--r--board/ti/omap730p2/Makefile51
-rw-r--r--board/ti/omap730p2/config.mk25
-rw-r--r--board/ti/omap730p2/flash.c477
-rw-r--r--board/ti/omap730p2/lowlevel_init.S395
-rw-r--r--board/ti/omap730p2/omap730p2.c265
5 files changed, 1213 insertions, 0 deletions
diff --git a/board/ti/omap730p2/Makefile b/board/ti/omap730p2/Makefile
new file mode 100644
index 0000000..0d7ae61
--- /dev/null
+++ b/board/ti/omap730p2/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@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 := omap730p2.o flash.o
+SOBJS := lowlevel_init.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/ti/omap730p2/config.mk b/board/ti/omap730p2/config.mk
new file mode 100644
index 0000000..6940320
--- /dev/null
+++ b/board/ti/omap730p2/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2002
+# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+# David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+#
+# (C) Copyright 2003
+# Texas Instruments, <www.ti.com>
+# Kshitij Gupta <Kshitij@ti.com>
+#
+# TI Perseus 2 board with OMAP720 (ARM925EJS) cpu
+# see http://www.ti.com/ for more information on Texas Instruments
+#
+# Innovator has 1 bank of 256 MB SDRAM
+# Physical Address:
+# 1000'0000 to 2000'0000
+#
+#
+# Linux-Kernel is expected to be at 1000'8000, entry 1000'8000
+# (mem base + reserved)
+#
+# we load ourself to 1108'0000
+#
+#
+
+TEXT_BASE = 0x11080000
diff --git a/board/ti/omap730p2/flash.c b/board/ti/omap730p2/flash.c
new file mode 100644
index 0000000..5b56b98
--- /dev/null
+++ b/board/ti/omap730p2/flash.c
@@ -0,0 +1,477 @@
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.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 <linux/byteorder/swab.h>
+
+#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/* Board support for 1 or 2 flash devices */
+#undef FLASH_PORT_WIDTH32
+#define FLASH_PORT_WIDTH16
+
+#ifdef FLASH_PORT_WIDTH16
+#define FLASH_PORT_WIDTH ushort
+#define FLASH_PORT_WIDTHV vu_short
+#define SWAP(x) __swab16(x)
+#else
+#define FLASH_PORT_WIDTH ulong
+#define FLASH_PORT_WIDTHV vu_long
+#define SWAP(x) __swab32(x)
+#endif
+
+#define FPW FLASH_PORT_WIDTH
+#define FPWV FLASH_PORT_WIDTHV
+
+#define mb() __asm__ __volatile__ ("" : : : "memory")
+
+
+/* Flash Organization Structure */
+typedef struct OrgDef {
+ unsigned int sector_number;
+ unsigned int sector_size;
+} OrgDef;
+
+
+/* Flash Organizations */
+OrgDef OrgIntel_28F256L18T[] = {
+ {4, 32 * 1024}, /* 4 * 32kBytes sectors */
+ {255, 128 * 1024}, /* 255 * 128kBytes sectors */
+};
+
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+unsigned long flash_init (void);
+static ulong flash_get_size (FPW * addr, flash_info_t * info);
+static int write_data (flash_info_t * info, ulong dest, FPW data);
+static void flash_get_offsets (ulong base, flash_info_t * info);
+void inline spin_wheel (void);
+void flash_print_info (flash_info_t * info);
+void flash_unprotect_sectors (FPWV * addr);
+int flash_erase (flash_info_t * info, int s_first, int s_last);
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ int i;
+ ulong size = 0;
+ for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
+ switch (i) {
+ case 0:
+ flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]);
+ flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
+ break;
+ default:
+ panic ("configured too many flash banks!\n");
+ break;
+ }
+ size += flash_info[i].size;
+ }
+
+ /* Protect monitor and environment sectors
+ */
+ flash_protect (FLAG_PROTECT_SET,
+ CONFIG_SYS_FLASH_BASE,
+ CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]);
+
+ flash_protect (FLAG_PROTECT_SET,
+ CONFIG_ENV_ADDR,
+ CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
+
+ return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t * info)
+{
+ int i;
+ OrgDef *pOrgDef;
+
+ pOrgDef = OrgIntel_28F256L18T;
+ if (info->flash_id == FLASH_UNKNOWN) {
+ return;
+ }
+
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
+ for (i = 0; i < info->sector_count; i++) {
+ if (i > 255) {
+ info->start[i] = base + (i * 0x8000);
+ info->protect[i] = 0;
+ } else {
+ info->start[i] = base +
+ (i * PHYS_FLASH_SECT_SIZE);
+ info->protect[i] = 0;
+ }
+ }
+ }
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+ int i;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case FLASH_MAN_INTEL:
+ printf ("INTEL ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_28F256L18T:
+ printf ("FLASH 28F256L18T\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s",
+ info->start[i], info->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
+ return;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (FPW * addr, flash_info_t * info)
+{
+ volatile FPW value;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr[0x5555] = (FPW) 0x00AA00AA;
+ addr[0x2AAA] = (FPW) 0x00550055;
+ addr[0x5555] = (FPW) 0x00900090;
+
+ mb ();
+ value = addr[0];
+
+ switch (value) {
+
+ case (FPW) INTEL_MANUFACT:
+ info->flash_id = FLASH_MAN_INTEL;
+ break;
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
+ return (0); /* no or unknown flash */
+ }
+
+ mb ();
+ value = addr[1]; /* device ID */
+ switch (value) {
+
+ case (FPW) (INTEL_ID_28F256L18T):
+ info->flash_id += FLASH_28F256L18T;
+ info->sector_count = 259;
+ info->size = 0x02000000;
+ break; /* => 32 MB */
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ break;
+ }
+
+ if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
+ printf ("** ERROR: sector count %d > max (%d) **\n",
+ info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
+ info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
+ }
+
+ addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
+
+ return (info->size);
+}
+
+
+/* unprotects a sector for write and erase
+ * on some intel parts, this unprotects the entire chip, but it
+ * wont hurt to call this additional times per sector...
+ */
+void flash_unprotect_sectors (FPWV * addr)
+{
+#define PD_FINTEL_WSMS_READY_MASK 0x0080
+
+ *addr = (FPW) 0x00500050; /* clear status register */
+
+ /* this sends the clear lock bit command */
+ *addr = (FPW) 0x00600060;
+ *addr = (FPW) 0x00D000D0;
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ int flag, prot, sect;
+ ulong type, start, last;
+ int rcode = 0;
+
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
+ }
+ return 1;
+ }
+
+ type = (info->flash_id & FLASH_VENDMASK);
+ if ((type != FLASH_MAN_INTEL)) {
+ printf ("Can't erase unknown flash type %08lx - aborted\n",
+ info->flash_id);
+ return 1;
+ }
+
+ prot = 0;
+ for (sect = s_first; sect <= s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
+
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
+
+
+ start = get_timer (0);
+ last = start;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ FPWV *addr = (FPWV *) (info->start[sect]);
+ FPW status;
+
+ printf ("Erasing sector %2d ... ", sect);
+
+ flash_unprotect_sectors (addr);
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked ();
+
+ *addr = (FPW) 0x00500050;/* clear status register */
+ *addr = (FPW) 0x00200020;/* erase setup */
+ *addr = (FPW) 0x00D000D0;/* erase confirm */
+
+ while (((status =
+ *addr) & (FPW) 0x00800080) !=
+ (FPW) 0x00800080) {
+ if (get_timer_masked () >
+ CONFIG_SYS_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ /* suspend erase */
+ *addr = (FPW) 0x00B000B0;
+ /* reset to read mode */
+ *addr = (FPW) 0x00FF00FF;
+ rcode = 1;
+ break;
+ }
+ }
+
+ /* clear status register cmd. */
+ *addr = (FPW) 0x00500050;
+ *addr = (FPW) 0x00FF00FF;/* resest to read mode */
+ printf (" done\n");
+ }
+ }
+ return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ * 4 - Flash not identified
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+ ulong cp, wp;
+ FPW data;
+ int count, i, l, rc, port_width;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ return 4;
+ }
+/* get lower word aligned address */
+#ifdef FLASH_PORT_WIDTH16
+ wp = (addr & ~1);
+ port_width = 2;
+#else
+ wp = (addr & ~3);
+ port_width = 4;
+#endif
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ data = 0;
+ for (i = 0, cp = wp; i < l; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *) cp);
+ }
+ for (; i < port_width && cnt > 0; ++i) {
+ data = (data << 8) | *src++;
+ --cnt;
+ ++cp;
+ }
+ for (; cnt == 0 && i < port_width; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *) cp);
+ }
+
+ if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+ return (rc);
+ }
+ wp += port_width;
+ }
+
+ /*
+ * handle word aligned part
+ */
+ count = 0;
+ while (cnt >= port_width) {
+ data = 0;
+ for (i = 0; i < port_width; ++i) {
+ data = (data << 8) | *src++;
+ }
+ if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+ return (rc);
+ }
+ wp += port_width;
+ cnt -= port_width;
+ if (count++ > 0x800) {
+ spin_wheel ();
+ count = 0;
+ }
+ }
+
+ if (cnt == 0) {
+ return (0);
+ }
+
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
+ data = (data << 8) | *src++;
+ --cnt;
+ }
+ for (; i < port_width; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *) cp);
+ }
+
+ return (write_data (info, wp, SWAP (data)));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word or halfword to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data (flash_info_t * info, ulong dest, FPW data)
+{
+ FPWV *addr = (FPWV *) dest;
+ ulong status;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*addr & data) != data) {
+ printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr);
+ return (2);
+ }
+ flash_unprotect_sectors (addr);
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+ *addr = (FPW) 0x00400040; /* write setup */
+ *addr = data;
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked ();
+
+ /* wait while polling the status register */
+ while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+ if (get_timer_masked () > CONFIG_SYS_FLASH_WRITE_TOUT) {
+ *addr = (FPW) 0x00FF00FF; /* restore read mode */
+ return (1);
+ }
+ }
+ *addr = (FPW) 0x00FF00FF; /* restore read mode */
+ return (0);
+}
+
+void inline spin_wheel (void)
+{
+ static int p = 0;
+ static char w[] = "\\/-";
+
+ printf ("\010%c", w[p]);
+ (++p == 3) ? (p = 0) : 0;
+}
diff --git a/board/ti/omap730p2/lowlevel_init.S b/board/ti/omap730p2/lowlevel_init.S
new file mode 100644
index 0000000..d4e97a5
--- /dev/null
+++ b/board/ti/omap730p2/lowlevel_init.S
@@ -0,0 +1,395 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2003-2004
+ *
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004
+ *
+ * Modified for OMAP730 P2 Board by Dave Peverley, MPC-Data Limited
+ * (http://www.mpc-data.co.uk)
+ *
+ * TODO : Tidy up and change to use system register defines
+ * from omap730.h where possible.
+ *
+ * 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 <version.h>
+
+#if defined(CONFIG_OMAP730)
+#include <./configs/omap730.h>
+#endif
+
+_TEXT_BASE:
+ .word TEXT_BASE /* sdram load addr from config.mk */
+
+.globl lowlevel_init
+lowlevel_init:
+ /* Save callers address in r11 - r11 must never be modified */
+ mov r11, lr
+
+ /*------------------------------------------------------*
+ *mask all IRQs by setting all bits in the INTMR default*
+ *------------------------------------------------------*/
+ mov r1, #0xffffffff
+ ldr r0, =REG_IHL1_MIR
+ str r1, [r0]
+ ldr r0, =REG_IHL2_MIR
+ str r1, [r0]
+
+ /*------------------------------------------------------*
+ * Set up ARM CLM registers (IDLECT1) *
+ *------------------------------------------------------*/
+ ldr r0, REG_ARM_IDLECT1
+ ldr r1, VAL_ARM_IDLECT1
+ str r1, [r0]
+
+ /*------------------------------------------------------*
+ * Set up ARM CLM registers (IDLECT2) *
+ *------------------------------------------------------*/
+ ldr r0, REG_ARM_IDLECT2
+ ldr r1, VAL_ARM_IDLECT2
+ str r1, [r0]
+
+ /*------------------------------------------------------*
+ * Set up ARM CLM registers (IDLECT3) *
+ *------------------------------------------------------*/
+ ldr r0, REG_ARM_IDLECT3
+ ldr r1, VAL_ARM_IDLECT3
+ str r1, [r0]
+
+
+ mov r1, #0x01 /* PER_EN bit */
+ ldr r0, REG_ARM_RSTCT2
+ strh r1, [r0] /* CLKM; Peripheral reset. */
+
+ /* Set CLKM to Sync-Scalable */
+ /* I supposedly need to enable the dsp clock before switching */
+ mov r1, #0x1000
+ ldr r0, REG_ARM_SYSST
+ strh r1, [r0]
+ mov r0, #0x400
+1:
+ subs r0, r0, #0x1 /* wait for any bubbles to finish */
+ bne 1b
+ ldr r1, VAL_ARM_CKCTL
+ ldr r0, REG_ARM_CKCTL
+ strh r1, [r0]
+
+ /* a few nops to let settle */
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ /* setup DPLL 1 */
+ /* Ramp up the clock to 96Mhz */
+ ldr r1, VAL_DPLL1_CTL
+ ldr r0, REG_DPLL1_CTL
+ strh r1, [r0]
+ ands r1, r1, #0x10 /* Check if PLL is enabled. */
+ beq lock_end /* Do not look for lock if BYPASS selected */
+2:
+ ldrh r1, [r0]
+ ands r1, r1, #0x01 /* Check the LOCK bit.*/
+ beq 2b /* loop until bit goes hi. */
+lock_end:
+
+ /*------------------------------------------------------*
+ * Turn off the watchdog during init... *
+ *------------------------------------------------------*/
+ ldr r0, REG_WATCHDOG
+ ldr r1, WATCHDOG_VAL1
+ str r1, [r0]
+ ldr r1, WATCHDOG_VAL2
+ str r1, [r0]
+ ldr r0, REG_WSPRDOG
+ ldr r1, WSPRDOG_VAL1
+ str r1, [r0]
+ ldr r0, REG_WWPSDOG
+
+watch1Wait:
+ ldr r1, [r0]
+ tst r1, #0x10
+ bne watch1Wait
+
+ ldr r0, REG_WSPRDOG
+ ldr r1, WSPRDOG_VAL2
+ str r1, [r0]
+ ldr r0, REG_WWPSDOG
+watch2Wait:
+ ldr r1, [r0]
+ tst r1, #0x10
+ bne watch2Wait
+
+ /* Set memory timings corresponding to the new clock speed */
+
+ /* Check execution location to determine current execution location
+ * and branch to appropriate initialization code.
+ */
+ /* Compare physical SDRAM base & current execution location. */
+ and r0, pc, #0xF0000000
+ /* Compare. */
+ cmp r0, #0
+ /* Skip over EMIF-fast initialization if running from SDRAM. */
+ bne skip_sdram
+
+ /*
+ * Delay for SDRAM initialization.
+ */
+ mov r3, #0x1800 /* value should be checked */
+3:
+ subs r3, r3, #0x1 /* Decrement count */
+ bne 3b
+
+ ldr r0, REG_SDRAM_CONFIG
+ ldr r1, SDRAM_CONFIG_VAL
+ str r1, [r0]
+
+ ldr r0, REG_SDRAM_MRS_LEGACY
+ ldr r1, SDRAM_MRS_VAL
+ str r1, [r0]
+
+skip_sdram:
+
+common_tc:
+ /* slow interface */
+ ldr r1, VAL_TC_EMIFS_CS0_CONFIG
+ ldr r0, REG_TC_EMIFS_CS0_CONFIG
+ str r1, [r0] /* Chip Select 0 */
+
+ ldr r1, VAL_TC_EMIFS_CS1_CONFIG
+ ldr r0, REG_TC_EMIFS_CS1_CONFIG
+ str r1, [r0] /* Chip Select 1 */
+ ldr r1, VAL_TC_EMIFS_CS2_CONFIG
+ ldr r0, REG_TC_EMIFS_CS2_CONFIG
+ str r1, [r0] /* Chip Select 2 */
+ ldr r1, VAL_TC_EMIFS_CS3_CONFIG
+ ldr r0, REG_TC_EMIFS_CS3_CONFIG
+ str r1, [r0] /* Chip Select 3 */
+
+ /* 48MHz clock request for UART1 */
+ ldr r1, PERSEUS2_CONFIG_BASE
+ ldrh r0, [r1, #CONFIG_PCC_CONF]
+ orr r0, r0, #CONF_MOD_UART1_CLK_MODE_R
+ strh r0, [r1, #CONFIG_PCC_CONF]
+
+ /* Initialize public and private rheas
+ * - set access factor 2 on both rhea / strobe
+ * - disable write buffer on strb0, enable write buffer on strb1
+ */
+
+ ldr R0, REG_RHEA_PUB_CTL
+ ldr R1, REG_RHEA_PRIV_CTL
+ ldr R2, VAL_RHEA_CTL
+ strh R2, [R0]
+ strh R2, [R1]
+ mov R3, #2 /* disable write buffer on strb0, enable write buffer on strb1 */
+ strh R3, [R0, #0x08] /* arm rhea control reg */
+ strh R3, [R1, #0x08]
+
+ /* enable IRQ and FIQ */
+
+ mrs r4, CPSR
+ bic r4, r4, #IRQ_MASK
+ bic r4, r4, #FIQ_MASK
+ msr CPSR, r4
+
+ /* set TAP CONF to TRI EMULATION */
+
+ ldr r1, [r0, #CONFIG_MODE2]
+ bic r1, r1, #0x18
+ orr r1, r1, #0x10
+ str r1, [r0, #CONFIG_MODE2]
+
+ /* set tdbgen to 1 */
+
+ ldr r0, PERSEUS2_CONFIG_BASE
+ ldr r1, [r0, #CONFIG_MODE1]
+ mov r2, #0x10000
+ orr r1, r1, r2
+ str r1, [r0, #CONFIG_MODE1]
+
+#ifdef CONFIG_P2_OMAP1610
+ /* inserting additional 2 clock cycle hold time for LAN */
+ ldr r0, REG_TC_EMIFS_CS1_ADVANCED
+ ldr r1, VAL_TC_EMIFS_CS1_ADVANCED
+ str r1, [r0]
+#endif
+ /* Start MPU Timer 1 */
+ ldr r0, REG_MPU_LOAD_TIMER
+ ldr r1, VAL_MPU_LOAD_TIMER
+ str r1, [r0]
+
+ ldr r0, REG_MPU_CNTL_TIMER
+ ldr r1, VAL_MPU_CNTL_TIMER
+ str r1, [r0]
+
+ /* back to arch calling code */
+ mov pc, r11
+
+ /* the literal pools origin */
+ .ltorg
+
+REG_TC_EMIFS_CONFIG: /* 32 bits */
+ .word 0xfffecc0c
+REG_TC_EMIFS_CS0_CONFIG: /* 32 bits */
+ .word 0xfffecc10
+REG_TC_EMIFS_CS1_CONFIG: /* 32 bits */
+ .word 0xfffecc14
+REG_TC_EMIFS_CS2_CONFIG: /* 32 bits */
+ .word 0xfffecc18
+REG_TC_EMIFS_CS3_CONFIG: /* 32 bits */
+ .word 0xfffecc1c
+
+#ifdef CONFIG_P2_OMAP730
+REG_TC_EMIFS_CS1_ADVANCED: /* 32 bits */
+ .word 0xfffecc54
+#endif
+
+/* MPU clock/reset/power mode control registers */
+REG_ARM_CKCTL: /* 16 bits */
+ .word 0xfffece00
+
+REG_ARM_IDLECT3: /* 16 bits */
+ .word 0xfffece24
+REG_ARM_IDLECT2: /* 16 bits */
+ .word 0xfffece08
+REG_ARM_IDLECT1: /* 16 bits */
+ .word 0xfffece04
+
+REG_ARM_RSTCT2: /* 16 bits */
+ .word 0xfffece14
+REG_ARM_SYSST: /* 16 bits */
+ .word 0xfffece18
+/* DPLL control registers */
+REG_DPLL1_CTL: /* 16 bits */
+ .word 0xfffecf00
+
+/* Watch Dog register */
+/* secure watchdog stop */
+REG_WSPRDOG:
+ .word 0xfffeb048
+/* watchdog write pending */
+REG_WWPSDOG:
+ .word 0xfffeb034
+
+WSPRDOG_VAL1:
+ .word 0x0000aaaa
+WSPRDOG_VAL2:
+ .word 0x00005555
+
+/* SDRAM config is: auto refresh enabled, 16 bit 4 bank,
+ counter @8192 rows, 10 ns, 8 burst */
+REG_SDRAM_CONFIG:
+ .word 0xfffecc20
+
+REG_SDRAM_MRS_LEGACY:
+ .word 0xfffecc24
+
+REG_WATCHDOG:
+ .word 0xfffec808
+
+REG_MPU_LOAD_TIMER:
+ .word 0xfffec504
+REG_MPU_CNTL_TIMER:
+ .word 0xfffec500
+
+/* Public and private rhea bridge registers definition */
+
+REG_RHEA_PUB_CTL:
+ .word 0xFFFECA00
+
+REG_RHEA_PRIV_CTL:
+ .word 0xFFFED300
+
+/* EMIFF SDRAM Configuration register
+ - self refresh disable
+ - auto refresh enabled
+ - SDRAM type 64 Mb, 16 bits bus 4 banks
+ - power down enabled
+ - SDRAM clock disabled
+ */
+SDRAM_CONFIG_VAL:
+ .word 0x0C017DF4
+
+/* Burst full page length ; cas latency = 3 */
+SDRAM_MRS_VAL:
+ .word 0x00000037
+
+VAL_ARM_CKCTL:
+ .word 0x6505
+VAL_DPLL1_CTL:
+ .word 0x3412
+
+#ifdef CONFIG_P2_OMAP730
+VAL_TC_EMIFS_CS0_CONFIG:
+ .word 0x0000FFF3
+VAL_TC_EMIFS_CS1_CONFIG:
+ .word 0x00004278
+VAL_TC_EMIFS_CS2_CONFIG:
+ .word 0x00004278
+VAL_TC_EMIFS_CS3_CONFIG:
+ .word 0x00004278
+VAL_TC_EMIFS_CS1_ADVANCED:
+ .word 0x00000022
+#endif
+
+VAL_ARM_IDLECT1:
+ .word 0x00000400
+VAL_ARM_IDLECT2:
+ .word 0x00000886
+VAL_ARM_IDLECT3:
+ .word 0x00000015
+
+WATCHDOG_VAL1:
+ .word 0x000000f5
+WATCHDOG_VAL2:
+ .word 0x000000a0
+
+VAL_MPU_LOAD_TIMER:
+ .word 0xffffffff
+VAL_MPU_CNTL_TIMER:
+ .word 0xffffffa1
+
+VAL_RHEA_CTL:
+ .word 0xFF22
+
+/* Config Register vals */
+PERSEUS2_CONFIG_BASE:
+ .word 0xFFFE1000
+
+.equ CONFIG_PCC_CONF, 0xB4
+.equ CONFIG_MODE1, 0x10
+.equ CONFIG_MODE2, 0x14
+.equ CONF_MOD_UART1_CLK_MODE_R, 0x0A
+
+/* misc values */
+.equ IRQ_MASK, 0x80 /* IRQ mask value */
+.equ FIQ_MASK, 0x40 /* FIQ mask value */
diff --git a/board/ti/omap730p2/omap730p2.c b/board/ti/omap730p2/omap730p2.c
new file mode 100644
index 0000000..309d667
--- /dev/null
+++ b/board/ti/omap730p2/omap730p2.c
@@ -0,0 +1,265 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.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>
+#if defined(CONFIG_OMAP730)
+#include <./configs/omap730.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int test_boot_mode(void);
+void spin_up_leds(void);
+void flash__init (void);
+void ether__init (void);
+void set_muxconf_regs (void);
+void peripheral_power_enable (void);
+
+#define FLASH_ON_CS0 1
+#define FLASH_ON_CS3 0
+
+static inline void delay (unsigned long loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0" (loops));
+}
+
+int test_boot_mode(void)
+{
+ /* Check for CS0 and CS3 address decode swapping */
+ if (*((volatile int *)EMIFS_CONFIG) & 0x00000002)
+ return(FLASH_ON_CS3);
+ else
+ return(FLASH_ON_CS0);
+}
+
+/* Toggle backup LED indication */
+void toggle_backup_led(void)
+{
+ static int backupLEDState = 0; /* Init variable so that the LED will be ON the first time */
+ volatile unsigned int *IOConfReg;
+
+
+ IOConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DATA_OUTPUT);
+
+ if (backupLEDState != 0) {
+ *IOConfReg &= (0xFFFFEFFF);
+ backupLEDState = 0;
+ } else {
+ *IOConfReg |= (0x00001000);
+ backupLEDState = 1;
+ }
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+ /* arch number of OMAP 730 P2 Board - Same as the Innovator! */
+ gd->bd->bi_arch_number = MACH_TYPE_OMAP_PERSEUS2;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = 0x10000100;
+
+ /* Configure MUX settings */
+ set_muxconf_regs ();
+
+ peripheral_power_enable ();
+
+ /* Backup LED indication via GPIO_140 -> Red led if MUX correctly setup */
+ toggle_backup_led();
+
+ /* Hold GSM in reset until needed */
+ *((volatile unsigned short *)M_CTL) &= ~1;
+
+ /*
+ * CSx timings, GPIO Mux ... setup
+ */
+
+ /* Flash: CS0 timings setup */
+ *((volatile unsigned int *) FLASH_CFG_0) = 0x0000fff3;
+ *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000088;
+
+ /* Ethernet support trough the debug board */
+ /* CS1 timings setup */
+ *((volatile unsigned int *) FLASH_CFG_1) = 0x0000fff3;
+ *((volatile unsigned int *) FLASH_ACFG_0_1) = 0x00000000;
+
+ /* this speeds up your boot a quite a bit. However to make it
+ * work, you need make sure your kernel startup flush bug is fixed.
+ * ... rkw ...
+ */
+ icache_enable ();
+
+ flash__init ();
+ ether__init ();
+
+ return 0;
+}
+
+int misc_init_r (void)
+{
+ /* currently empty */
+ return (0);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+void flash__init (void)
+{
+ unsigned int regval;
+
+ regval = *((volatile unsigned int *) EMIFS_CONFIG);
+ /* Turn off write protection for flash devices. */
+ regval = regval | 0x0001;
+ *((volatile unsigned int *) EMIFS_CONFIG) = regval;
+}
+
+/*************************************************************
+ Routine:ether__init
+ Description: take the Ethernet controller out of reset and wait
+ for the EEPROM load to complete.
+*************************************************************/
+void ether__init (void)
+{
+#define LAN_RESET_REGISTER 0x0400001c
+
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
+ do {
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0001;
+ udelay (100);
+ } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0001);
+
+ do {
+ *((volatile unsigned short *) LAN_RESET_REGISTER) = 0x0000;
+ udelay (100);
+ } while (*((volatile unsigned short *) LAN_RESET_REGISTER) != 0x0000);
+
+#define ETH_CONTROL_REG 0x0400030b
+
+ *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
+ udelay (100);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+int dram_init (void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+ return 0;
+}
+
+/******************************************************
+ Routine: set_muxconf_regs
+ Description: Setting up the configuration Mux registers
+ specific to the hardware
+*******************************************************/
+void set_muxconf_regs (void)
+{
+ volatile unsigned int *MuxConfReg;
+ /* set each registers to its reset value; */
+
+ /*
+ * Backup LED Indication
+ */
+
+ /* Configure MUXed pin. Mode 6: GPIO_140 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF10);
+ *MuxConfReg &= (0xFFFFFF1F); /* Clear D_MPU_LPG1 */
+ *MuxConfReg |= 0x000000C0; /* Set D_MPU_LPG1 to 0x6 */
+
+ /* Configure GPIO_140 as output */
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_5 + GPIO_DIRECTION_CONTROL);
+ *MuxConfReg &= (0xFFFFEFFF); /* Clear direction (output) for GPIO 140 */
+
+ /*
+ * Configure GPIOs for battery charge & feedback
+ */
+
+ /* Configure MUXed pin. Mode 6: GPIO_35 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
+ *MuxConfReg &= 0xFFFFFFF1; /* Clear M_CLK_OUT */
+ *MuxConfReg |= 0x0000000C; /* Set M_CLK_OUT = 0x6 (GPIOs) */
+
+ /* Configure MUXed pin. Mode 6: GPIO_72,73,74 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF5);
+ *MuxConfReg &= 0xFFFF1FFF; /* Clear D_DDR */
+ *MuxConfReg |= 0x0000C000; /* Set D_DDR = 0x6 (GPIOs) */
+
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DIRECTION_CONTROL);
+ *MuxConfReg |= 0x00000100; /* Configure GPIO_72 as input */
+ *MuxConfReg &= 0xFFFFFDFF; /* Configure GPIO_73 as output */
+
+ /*
+ * Allow battery charge
+ */
+
+ MuxConfReg = (volatile unsigned int *) ((unsigned int) OMAP730_GPIO_BASE_3 + GPIO_DATA_OUTPUT);
+ *MuxConfReg &= (0xFFFFFDFF); /* Clear GPIO_73 pin */
+
+ /*
+ * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
+ * It is used as the Ethernet controller interrupt
+ */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF9);
+ *MuxConfReg &= 0x1FFFFFFF;
+}
+
+/******************************************************
+ Routine: peripheral_power_enable
+ Description: Enable the power for UART1
+*******************************************************/
+void peripheral_power_enable (void)
+{
+ volatile unsigned int *MuxConfReg;
+
+
+ /* Set up pins used by UART */
+
+ /* Start UART clock (48MHz) */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS_PCC_CONF_REG);
+ *MuxConfReg &= (0xFFFFFFF7);
+ *MuxConfReg |= (0x00000008);
+
+ /* Get the UART pin in mode0 */
+ MuxConfReg = (volatile unsigned int *) (PERSEUS2_IO_CONF3);
+ *MuxConfReg &= (0xFF1FFFFF);
+ *MuxConfReg &= (0xF1FFFFFF);
+}
generated by cgit v1.1 at 2024-11-25 02:48:43 +0000