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-rw-r--r--board/pm520/flash.c25
-rw-r--r--board/pm520/mt46v16m16-75.h37
-rw-r--r--board/pm520/mt48lc16m16a2-75.h43
-rw-r--r--board/pm520/pm520.c284
4 files changed, 307 insertions, 82 deletions
diff --git a/board/pm520/flash.c b/board/pm520/flash.c
index 4ea8b36..572cc9b 100644
--- a/board/pm520/flash.c
+++ b/board/pm520/flash.c
@@ -83,12 +83,18 @@ unsigned long flash_init (void)
{
int i;
ulong size = 0;
+ extern void flash_preinit(void);
+ extern void flash_afterinit(ulong, ulong);
+ ulong flashbase = CFG_FLASH_BASE;
+
+ flash_preinit();
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
switch (i) {
case 0:
- flash_get_size ((FPW *) CFG_FLASH_BASE, &flash_info[i]);
- flash_get_offsets (CFG_FLASH_BASE, &flash_info[i]);
+ memset(&flash_info[i], 0, sizeof(flash_info_t));
+ flash_get_size ((FPW *) flashbase, &flash_info[i]);
+ flash_get_offsets (flash_info[i].start[0], &flash_info[i]);
break;
default:
panic ("configured to many flash banks!\n");
@@ -99,14 +105,22 @@ unsigned long flash_init (void)
/* Protect monitor and environment sectors
*/
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+#ifndef CONFIG_BOOT_ROM
flash_protect ( FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE + monitor_flash_len - 1,
&flash_info[0] );
+#endif
+#endif
+#ifdef CFG_ENV_IS_IN_FLASH
flash_protect ( FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] );
+#endif
+
+ flash_afterinit(flash_info[0].start[0], flash_info[0].size);
return size;
}
@@ -195,6 +209,8 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
addr[0x5555] = (FPW) 0x00900090;
mb ();
+ udelay(100);
+
value = addr[0];
switch (value) {
@@ -220,18 +236,21 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info)
info->flash_id += FLASH_28F128J3A;
info->sector_count = 128;
info->size = 0x02000000;
+ info->start[0] = CFG_FLASH_BASE;
break; /* => 32 MB */
case (FPW) INTEL_ID_28F640J3A:
info->flash_id += FLASH_28F640J3A;
info->sector_count = 64;
info->size = 0x01000000;
+ info->start[0] = CFG_FLASH_BASE + 0x01000000;
break; /* => 16 MB */
case (FPW) INTEL_ID_28F320J3A:
info->flash_id += FLASH_28F320J3A;
info->sector_count = 32;
- info->size = 0x00800000;
+ info->size = 0x800000;
+ info->start[0] = CFG_FLASH_BASE + 0x01800000;
break; /* => 8 MB */
default:
diff --git a/board/pm520/mt46v16m16-75.h b/board/pm520/mt46v16m16-75.h
new file mode 100644
index 0000000..f650faa
--- /dev/null
+++ b/board/pm520/mt46v16m16-75.h
@@ -0,0 +1,37 @@
+/*
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.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
+ */
+
+#define SDRAM_DDR 1 /* is DDR */
+
+#if defined(CONFIG_MPC5200)
+/* Settings for XLB = 132 MHz */
+#define SDRAM_MODE 0x018D0000
+#define SDRAM_EMODE 0x40090000
+#define SDRAM_CONTROL 0x714f0f00
+#define SDRAM_CONFIG1 0x73722930
+#define SDRAM_CONFIG2 0x47770000
+#define SDRAM_TAPDELAY 0x10000000
+
+#else
+#error CONFIG_MPC5200 not defined
+#endif
diff --git a/board/pm520/mt48lc16m16a2-75.h b/board/pm520/mt48lc16m16a2-75.h
new file mode 100644
index 0000000..ffdf039
--- /dev/null
+++ b/board/pm520/mt48lc16m16a2-75.h
@@ -0,0 +1,43 @@
+/*
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.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
+ */
+
+#define SDRAM_DDR 0 /* is SDR */
+
+#if defined(CONFIG_MPC5200)
+/* Settings for XLB = 132 MHz */
+#define SDRAM_MODE 0x00CD0000
+#define SDRAM_CONTROL 0x504F0000
+#define SDRAM_CONFIG1 0xD2322800
+#define SDRAM_CONFIG2 0x8AD70000
+
+#elif defined(CONFIG_MGT5100)
+/* Settings for XLB = 66 MHz */
+#define SDRAM_MODE 0x008D0000
+#define SDRAM_CONTROL 0x504F0000
+#define SDRAM_CONFIG1 0xC2222600
+#define SDRAM_CONFIG2 0x88B70004
+#define SDRAM_ADDRSEL 0x02000000
+
+#else
+#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined
+#endif
diff --git a/board/pm520/pm520.c b/board/pm520/pm520.c
index bb0268f..54f59f5 100644
--- a/board/pm520/pm520.c
+++ b/board/pm520/pm520.c
@@ -2,6 +2,9 @@
* (C) Copyright 2003-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -25,127 +28,209 @@
#include <mpc5xxx.h>
#include <pci.h>
-#ifndef CFG_RAMBOOT
-static long int dram_size(long int *base, long int maxsize)
-{
- volatile long int *addr;
- ulong cnt, val;
- ulong save[32]; /* to make test non-destructive */
- unsigned char i = 0;
-
- for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
- addr = base + cnt; /* pointer arith! */
-
- save[i++] = *addr;
- *addr = ~cnt;
- }
-
- /* write 0 to base address */
- addr = base;
- save[i] = *addr;
- *addr = 0;
-
- /* check at base address */
- if ((val = *addr) != 0) {
- *addr = save[i];
- return (0);
- }
-
- for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) {
- addr = base + cnt; /* pointer arith! */
-
- val = *addr;
- *addr = save[--i];
-
- if (val != (~cnt)) {
- return (cnt * sizeof (long));
- }
- }
- return (maxsize);
-}
+#if defined(CONFIG_MPC5200_DDR)
+#include "mt46v16m16-75.h"
+#else
+#include "mt48lc16m16a2-75.h"
+#endif
+#ifndef CFG_RAMBOOT
static void sdram_start (int hi_addr)
{
long hi_addr_bit = hi_addr ? 0x01000000 : 0;
/* unlock mode register */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0000 | hi_addr_bit;
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
/* precharge all banks */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0002 | hi_addr_bit;
- /* set mode register */
-#if defined(CONFIG_MPC5200)
- *(vu_long *)MPC5XXX_SDRAM_MODE = 0x408d0000;
-#elif defined(CONFIG_MGT5100)
- *(vu_long *)MPC5XXX_SDRAM_MODE = 0x008d0000;
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+#if SDRAM_DDR
+ /* set mode register: extended mode */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
+ __asm__ volatile ("sync");
+
+ /* set mode register: reset DLL */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
+ __asm__ volatile ("sync");
#endif
+
/* precharge all banks */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0002 | hi_addr_bit;
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
/* auto refresh */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0004 | hi_addr_bit;
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
/* set mode register */
- *(vu_long *)MPC5XXX_SDRAM_MODE = 0x008d0000;
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
+ __asm__ volatile ("sync");
+
/* normal operation */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = 0x504f0000 | hi_addr_bit;
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
+ __asm__ volatile ("sync");
}
#endif
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real use
+ * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
+ * is something else than 0x00000000.
+ */
+
+#if defined(CONFIG_MPC5200)
long int initdram (int board_type)
{
ulong dramsize = 0;
+ ulong dramsize2 = 0;
#ifndef CFG_RAMBOOT
ulong test1, test2;
- /* configure SDRAM start/end */
-#if defined(CONFIG_MPC5200)
+ /* setup SDRAM chip selects */
*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
+ __asm__ volatile ("sync");
/* setup config registers */
- *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = 0xc2233a00;
- *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x88b70004;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
+ __asm__ volatile ("sync");
+
+#if SDRAM_DDR
+ /* set tap delay */
+ *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
+ __asm__ volatile ("sync");
+#endif
+
+ /* find RAM size using SDRAM CS0 only */
+ sdram_start(0);
+ test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ sdram_start(1);
+ test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize = test1;
+ } else {
+ dramsize = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize < (1 << 20)) {
+ dramsize = 0;
+ }
+
+ /* set SDRAM CS0 size according to the amount of RAM found */
+ if (dramsize > 0) {
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1;
+ } else {
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
+ }
+
+ /* let SDRAM CS1 start right after CS0 */
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
+
+ /* find RAM size using SDRAM CS1 only */
+ sdram_start(0);
+ test1 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ sdram_start(1);
+ test2 = get_ram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize2 = test1;
+ } else {
+ dramsize2 = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize2 < (1 << 20)) {
+ dramsize2 = 0;
+ }
+
+ /* set SDRAM CS1 size according to the amount of RAM found */
+ if (dramsize2 > 0) {
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
+ | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
+ } else {
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
+ }
+
+#else /* CFG_RAMBOOT */
+
+ /* retrieve size of memory connected to SDRAM CS0 */
+ dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
+ if (dramsize >= 0x13) {
+ dramsize = (1 << (dramsize - 0x13)) << 20;
+ } else {
+ dramsize = 0;
+ }
+
+ /* retrieve size of memory connected to SDRAM CS1 */
+ dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
+ if (dramsize2 >= 0x13) {
+ dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+ } else {
+ dramsize2 = 0;
+ }
+
+#endif /* CFG_RAMBOOT */
+
+ return dramsize + dramsize2;
+}
#elif defined(CONFIG_MGT5100)
+
+long int initdram (int board_type)
+{
+ ulong dramsize = 0;
+#ifndef CFG_RAMBOOT
+ ulong test1, test2;
+
+ /* setup and enable SDRAM chip selects */
*(vu_long *)MPC5XXX_SDRAM_START = 0x00000000;
*(vu_long *)MPC5XXX_SDRAM_STOP = 0x0000ffff;/* 2G */
*(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */
+ __asm__ volatile ("sync");
/* setup config registers */
- *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = 0xc2222600;
- *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x88b70004;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
/* address select register */
- *(vu_long *)MPC5XXX_SDRAM_XLBSEL = 0x03000000;
-#endif
+ *(vu_long *)MPC5XXX_SDRAM_XLBSEL = SDRAM_ADDRSEL;
+ __asm__ volatile ("sync");
+
+ /* find RAM size */
sdram_start(0);
- test1 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ test1 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
sdram_start(1);
- test2 = dram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
+ test2 = get_ram_size((ulong *)CFG_SDRAM_BASE, 0x80000000);
if (test1 > test2) {
sdram_start(0);
dramsize = test1;
} else {
dramsize = test2;
}
-#if defined(CONFIG_MPC5200)
- *(vu_long *)MPC5XXX_SDRAM_CS0CFG =
- (0x13 + __builtin_ffs(dramsize >> 20) - 1);
- *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
-#elif defined(CONFIG_MGT5100)
+
+ /* set SDRAM end address according to size */
*(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15);
-#endif
-#else
-#ifdef CONFIG_MGT5100
- *(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */
+#else /* CFG_RAMBOOT */
+
+ /* Retrieve amount of SDRAM available */
dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15);
-#else
- dramsize = ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS0CFG - 0x13)) << 20);
-#endif
+
#endif /* CFG_RAMBOOT */
- /* return total ram size */
+
return dramsize;
}
+#else
+#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined
+#endif
+
int checkboard (void)
{
#if defined(CONFIG_MPC5200)
@@ -171,14 +256,32 @@ void flash_preinit(void)
*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
}
-void flash_afterinit(ulong size)
+void flash_afterinit(ulong start, ulong size)
{
- if (size == 0x800000) { /* adjust mapping */
- *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
- START_REG(CFG_BOOTCS_START | size);
- *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
- STOP_REG(CFG_BOOTCS_START | size, size);
- }
+#if defined(CONFIG_BOOT_ROM)
+ /* adjust mapping */
+ *(vu_long *)MPC5XXX_CS1_START =
+ START_REG(start);
+ *(vu_long *)MPC5XXX_CS1_STOP =
+ STOP_REG(start, size);
+#else
+ /* adjust mapping */
+ *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
+ START_REG(start);
+ *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
+ STOP_REG(start, size);
+#endif
+}
+
+
+extern flash_info_t flash_info[]; /* info for FLASH chips */
+
+int misc_init_r (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ /* adjust flash start */
+ gd->bd->bi_flashstart = flash_info[0].start[0];
+ return (0);
}
#ifdef CONFIG_PCI
@@ -191,3 +294,26 @@ void pci_init_board(void)
pci_mpc5xxx_init(&hose);
}
#endif
+
+#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
+
+void init_ide_reset (void)
+{
+ debug ("init_ide_reset\n");
+
+}
+
+void ide_set_reset (int idereset)
+{
+ debug ("ide_reset(%d)\n", idereset);
+
+}
+#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */
+
+#if (CONFIG_COMMANDS & CFG_CMD_DOC)
+extern void doc_probe (ulong physadr);
+void doc_init (void)
+{
+ doc_probe (CFG_DOC_BASE);
+}
+#endif
generated by cgit v1.1 at 2024-11-24 01:57:02 +0000