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-rw-r--r--board/incaip/Makefile9
-rw-r--r--board/incaip/README57
-rw-r--r--board/incaip/config.mk16
-rw-r--r--board/incaip/flash.c655
-rw-r--r--board/incaip/incaip.c110
-rw-r--r--board/incaip/lowlevel_init.S287
6 files changed, 0 insertions, 1134 deletions
diff --git a/board/incaip/Makefile b/board/incaip/Makefile
deleted file mode 100644
index 602d30e..0000000
--- a/board/incaip/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2003-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-obj-y = incaip.o flash.o
-obj-y += lowlevel_init.o
diff --git a/board/incaip/README b/board/incaip/README
deleted file mode 100644
index 1329152..0000000
--- a/board/incaip/README
+++ /dev/null
@@ -1,57 +0,0 @@
-
-Flash programming on the INCA-IP board is complicated because of the
-EBU swapping unit. A BDI2000 can be used for flash programming only
-if the EBU swapping unit is enabled; otherwise it will not detect the
-flash memory. But the EBU swapping unit is disadbled after reset, so
-if you program some code to flash with the swapping unit on, it will
-not be runnable with the swapping unit off.
-
-The consequence is that you have to write a pre-swapped image to
-flash using the BDI2000. A simple host-side tool "inca-swap-bytes" is
-provided in the "tools/" directory. Use it as follows:
-
- bash$ ./inca-swap-bytes <u-boot.bin >u-boot.bin.swp
-
-Note that the current BDI config file _disables_ the EBU swapping
-unit for the flash bank 0. To enable it, (this is required for the
-BDI flash commands to work) uncomment the following line in the
-config file:
-
- ;WM32 0xb8000260 0x404161ff ; Swapping unit enabled
-
-and comment out
-
- WM32 0xb8000260 0x004161ff ; Swapping unit disabled
-
-Alternatively, you can use "mm 0xb8000260 <value>" commands to
-enable/disable the swapping unit manually.
-
-Just for reference, here is the complete sequence of actions we took
-to install a U-Boot image into flash.
-
- 1. ./inca-swap-bytes <u-boot.bin >u-boot.bin.swp
-
- 2. From BDI:
-
- mm 0xb8000260 0x404161ff
- erase 0xb0000000
- erase 0xb0010000
- prog 0xb0000000 /tftpboot/INCA/u-boot.bin.swp bin
- mm 0xb8000260 0x004161ff
- go 0xb0000000
-
-
-Ethernet autonegotiation needs some time to complete. Instead of
-delaying the boot process in all cases, we just start the
-autonegotiation process when U-Boot comes up and that is all. Most
-likely, it will complete by the time the network transfer is
-attempted for the first time. In the worst case, if a transfer is
-attempted before the autonegotiation is complete, just a single
-packet would be lost resulting in a single timeout error, and then
-the transfer would proceed normally. So the time that we would have
-lost unconditionally waiting for the autonegotiation to complete, we
-have to wait only if the file transfer is started immediately after
-reset. We've verified that this works for all the clock
-configurations.
-
-(C) 2003 Wolfgang Denk
diff --git a/board/incaip/config.mk b/board/incaip/config.mk
deleted file mode 100644
index e854f8e..0000000
--- a/board/incaip/config.mk
+++ /dev/null
@@ -1,16 +0,0 @@
-#
-# (C) Copyright 2003
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-#
-# INCA-IP board with MIPS 4Kc CPU core
-#
-
-# ROM version
-CONFIG_SYS_TEXT_BASE = 0xB0000000
-
-# RAM version
-#CONFIG_SYS_TEXT_BASE = 0x80100000
diff --git a/board/incaip/flash.c b/board/incaip/flash.c
deleted file mode 100644
index a786ac9..0000000
--- a/board/incaip/flash.c
+++ /dev/null
@@ -1,655 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/inca-ip.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/* NOTE - CONFIG_FLASH_16BIT means the CPU interface is 16-bit, it
- * has nothing to do with the flash chip being 8-bit or 16-bit.
- */
-#ifdef CONFIG_FLASH_16BIT
-typedef unsigned short FLASH_PORT_WIDTH;
-typedef volatile unsigned short FLASH_PORT_WIDTHV;
-#define FLASH_ID_MASK 0xFFFF
-#else
-typedef unsigned long FLASH_PORT_WIDTH;
-typedef volatile unsigned long FLASH_PORT_WIDTHV;
-#define FLASH_ID_MASK 0xFFFFFFFF
-#endif
-
-#define FPW FLASH_PORT_WIDTH
-#define FPWV FLASH_PORT_WIDTHV
-
-#define ORMASK(size) ((-size) & OR_AM_MSK)
-
-#if 0
-#define FLASH_CYCLE1 0x0555
-#define FLASH_CYCLE2 0x02aa
-#else
-#define FLASH_CYCLE1 0x0554
-#define FLASH_CYCLE2 0x02ab
-#endif
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size(FPWV *addr, flash_info_t *info);
-static void flash_reset(flash_info_t *info);
-static int write_word_intel(flash_info_t *info, FPWV *dest, FPW data);
-static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
-static void flash_get_offsets(ulong base, flash_info_t *info);
-static flash_info_t *flash_get_info(ulong base);
-
-/*-----------------------------------------------------------------------
- * flash_init()
- *
- * sets up flash_info and returns size of FLASH (bytes)
- */
-unsigned long flash_init (void)
-{
- unsigned long size = 0;
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- ulong flashbase = (i == 0) ? PHYS_FLASH_1 : PHYS_FLASH_2;
- ulong * buscon = (ulong *)
- ((i == 0) ? INCA_IP_EBU_EBU_BUSCON0 : INCA_IP_EBU_EBU_BUSCON2);
-
- /* Disable write protection */
- *buscon &= ~INCA_IP_EBU_EBU_BUSCON1_WRDIS;
-
-#if 1
- memset(&flash_info[i], 0, sizeof(flash_info_t));
-#endif
-
- flash_info[i].size =
- flash_get_size((FPW *)flashbase, &flash_info[i]);
-
- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n",
- i, flash_info[i].size);
- }
-
- size += flash_info[i].size;
- }
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- flash_get_info(CONFIG_SYS_MONITOR_BASE));
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SIZE-1,
- flash_get_info(CONFIG_ENV_ADDR));
-#endif
-
-
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_reset(flash_info_t *info)
-{
- FPWV *base = (FPWV *)(info->start[0]);
-
- /* Put FLASH back in read mode */
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
- *base = (FPW)0x00FF00FF; /* Intel Read Mode */
- else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
- *base = (FPW)0x00F000F0; /* AMD Read Mode */
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- /* set up sector start address table */
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL
- && (info->flash_id & FLASH_BTYPE)) {
- int bootsect_size; /* number of bytes/boot sector */
- int sect_size; /* number of bytes/regular sector */
-
- bootsect_size = 0x00002000 * (sizeof(FPW)/2);
- sect_size = 0x00010000 * (sizeof(FPW)/2);
-
- /* set sector offsets for bottom boot block type */
- for (i = 0; i < 8; ++i) {
- info->start[i] = base + (i * bootsect_size);
- }
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + ((i - 7) * sect_size);
- }
- }
- else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
- && (info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U) {
-
- int sect_size; /* number of bytes/sector */
-
- sect_size = 0x00010000 * (sizeof(FPW)/2);
-
- /* set up sector start address table (uniform sector type) */
- for( i = 0; i < info->sector_count; i++ )
- info->start[i] = base + (i * sect_size);
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-
-static flash_info_t *flash_get_info(ulong base)
-{
- int i;
- flash_info_t * info;
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i ++) {
- info = & flash_info[i];
- if (info->start[0] <= base && base < info->start[0] + info->size)
- break;
- }
-
- return i == CONFIG_SYS_MAX_FLASH_BANKS ? 0 : info;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-void flash_print_info (flash_info_t *info)
-{
- int i;
- uchar *boottype;
- uchar *bootletter;
- char *fmt;
- uchar botbootletter[] = "B";
- uchar topbootletter[] = "T";
- uchar botboottype[] = "bottom boot sector";
- uchar topboottype[] = "top boot sector";
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
- case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
- case FLASH_MAN_SST: printf ("SST "); break;
- case FLASH_MAN_STM: printf ("STM "); break;
- case FLASH_MAN_INTEL: printf ("INTEL "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- /* check for top or bottom boot, if it applies */
- if (info->flash_id & FLASH_BTYPE) {
- boottype = botboottype;
- bootletter = botbootletter;
- }
- else {
- boottype = topboottype;
- bootletter = topbootletter;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM640U:
- fmt = "29LV641D (64 Mbit, uniform sectors)\n";
- break;
- case FLASH_28F800C3B:
- case FLASH_28F800C3T:
- fmt = "28F800C3%s (8 Mbit, %s)\n";
- break;
- case FLASH_INTEL800B:
- case FLASH_INTEL800T:
- fmt = "28F800B3%s (8 Mbit, %s)\n";
- break;
- case FLASH_28F160C3B:
- case FLASH_28F160C3T:
- fmt = "28F160C3%s (16 Mbit, %s)\n";
- break;
- case FLASH_INTEL160B:
- case FLASH_INTEL160T:
- fmt = "28F160B3%s (16 Mbit, %s)\n";
- break;
- case FLASH_28F320C3B:
- case FLASH_28F320C3T:
- fmt = "28F320C3%s (32 Mbit, %s)\n";
- break;
- case FLASH_INTEL320B:
- case FLASH_INTEL320T:
- fmt = "28F320B3%s (32 Mbit, %s)\n";
- break;
- case FLASH_28F640C3B:
- case FLASH_28F640C3T:
- fmt = "28F640C3%s (64 Mbit, %s)\n";
- break;
- case FLASH_INTEL640B:
- case FLASH_INTEL640T:
- fmt = "28F640B3%s (64 Mbit, %s)\n";
- break;
- default:
- fmt = "Unknown Chip Type\n";
- break;
- }
-
- printf (fmt, bootletter, boottype);
-
- 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");
-}
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-ulong flash_get_size (FPWV *addr, flash_info_t *info)
-{
- /* Write auto select command: read Manufacturer ID */
-
- /* Write auto select command sequence and test FLASH answer */
- addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */
- addr[FLASH_CYCLE2] = (FPW)0x00550055; /* for AMD, Intel ignores this */
- addr[FLASH_CYCLE1] = (FPW)0x00900090; /* selects Intel or AMD */
-
- /* The manufacturer codes are only 1 byte, so just use 1 byte.
- * This works for any bus width and any FLASH device width.
- */
- switch (addr[1] & 0xff) {
-
- case (uchar)AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
-
- case (uchar)INTEL_MANUFACT:
- info->flash_id = FLASH_MAN_INTEL;
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- break;
- }
-
- /* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
- if (info->flash_id != FLASH_UNKNOWN) switch (addr[0]) {
-
- case (FPW)AMD_ID_LV640U: /* 29LV640 and 29LV641 have same ID */
- info->flash_id += FLASH_AM640U;
- info->sector_count = 128;
- info->size = 0x00800000 * (sizeof(FPW)/2);
- break; /* => 8 or 16 MB */
-
- case (FPW)INTEL_ID_28F800C3B:
- info->flash_id += FLASH_28F800C3B;
- info->sector_count = 23;
- info->size = 0x00100000 * (sizeof(FPW)/2);
- break; /* => 1 or 2 MB */
-
- case (FPW)INTEL_ID_28F800B3B:
- info->flash_id += FLASH_INTEL800B;
- info->sector_count = 23;
- info->size = 0x00100000 * (sizeof(FPW)/2);
- break; /* => 1 or 2 MB */
-
- case (FPW)INTEL_ID_28F160C3B:
- info->flash_id += FLASH_28F160C3B;
- info->sector_count = 39;
- info->size = 0x00200000 * (sizeof(FPW)/2);
- break; /* => 2 or 4 MB */
-
- case (FPW)INTEL_ID_28F160B3B:
- info->flash_id += FLASH_INTEL160B;
- info->sector_count = 39;
- info->size = 0x00200000 * (sizeof(FPW)/2);
- break; /* => 2 or 4 MB */
-
- case (FPW)INTEL_ID_28F320C3B:
- info->flash_id += FLASH_28F320C3B;
- info->sector_count = 71;
- info->size = 0x00400000 * (sizeof(FPW)/2);
- break; /* => 4 or 8 MB */
-
- case (FPW)INTEL_ID_28F320B3B:
- info->flash_id += FLASH_INTEL320B;
- info->sector_count = 71;
- info->size = 0x00400000 * (sizeof(FPW)/2);
- break; /* => 4 or 8 MB */
-
- case (FPW)INTEL_ID_28F640C3B:
- info->flash_id += FLASH_28F640C3B;
- info->sector_count = 135;
- info->size = 0x00800000 * (sizeof(FPW)/2);
- break; /* => 8 or 16 MB */
-
- case (FPW)INTEL_ID_28F640B3B:
- info->flash_id += FLASH_INTEL640B;
- info->sector_count = 135;
- info->size = 0x00800000 * (sizeof(FPW)/2);
- break; /* => 8 or 16 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* => no or unknown flash */
- }
-
- flash_get_offsets((ulong)addr, info);
-
- /* Put FLASH back in read mode */
- flash_reset(info);
-
- return (info->size);
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- FPWV *addr;
- int flag, prot, sect;
- int intel = (info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL;
- ulong start, now, 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;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_INTEL800B:
- case FLASH_INTEL160B:
- case FLASH_INTEL320B:
- case FLASH_INTEL640B:
- case FLASH_28F800C3B:
- case FLASH_28F160C3B:
- case FLASH_28F320C3B:
- case FLASH_28F640C3B:
- case FLASH_AM640U:
- break;
- case FLASH_UNKNOWN:
- default:
- 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");
- }
-
- last = get_timer(0);
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last && rcode == 0; sect++) {
-
- if (info->protect[sect] != 0) /* protected, skip it */
- continue;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr = (FPWV *)(info->start[sect]);
- if (intel) {
- *addr = (FPW)0x00500050; /* clear status register */
- *addr = (FPW)0x00200020; /* erase setup */
- *addr = (FPW)0x00D000D0; /* erase confirm */
- }
- else {
- /* must be AMD style if not Intel */
- FPWV *base; /* first address in bank */
-
- base = (FPWV *)(info->start[0]);
- base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
- base[FLASH_CYCLE1] = (FPW)0x00800080; /* erase mode */
- base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
- *addr = (FPW)0x00300030; /* erase sector */
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer(0);
-
- /* wait at least 50us for AMD, 80us for Intel.
- * Let's wait 1 ms.
- */
- udelay (1000);
-
- while ((*addr & (FPW)0x00800080) != (FPW)0x00800080) {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
-
- if (intel) {
- /* suspend erase */
- *addr = (FPW)0x00B000B0;
- }
-
- flash_reset(info); /* reset to read mode */
- rcode = 1; /* failed */
- break;
- }
-
- /* show that we're waiting */
- if ((get_timer(last)) > CONFIG_SYS_HZ) {/* every second */
- putc ('.');
- last = get_timer(0);
- }
- }
-
- /* show that we're waiting */
- if ((get_timer(last)) > CONFIG_SYS_HZ) { /* every second */
- putc ('.');
- last = get_timer(0);
- }
-
- flash_reset(info); /* reset to read mode */
- }
-
- printf (" done\n");
- return rcode;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */
- int bytes; /* number of bytes to program in current word */
- int left; /* number of bytes left to program */
- int i, res;
-
- for (left = cnt, res = 0;
- left > 0 && res == 0;
- addr += sizeof(data), left -= sizeof(data) - bytes) {
-
- bytes = addr & (sizeof(data) - 1);
- addr &= ~(sizeof(data) - 1);
-
- /* combine source and destination data so can program
- * an entire word of 16 or 32 bits
- */
- for (i = 0; i < sizeof(data); i++) {
- data <<= 8;
- if (i < bytes || i - bytes >= left )
- data += *((uchar *)addr + i);
- else
- data += *src++;
- }
-
- /* write one word to the flash */
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_AMD:
- res = write_word_amd(info, (FPWV *)addr, data);
- break;
- case FLASH_MAN_INTEL:
- res = write_word_intel(info, (FPWV *)addr, data);
- break;
- default:
- /* unknown flash type, error! */
- printf ("missing or unknown FLASH type\n");
- res = 1; /* not really a timeout, but gives error */
- break;
- }
- }
-
- return (res);
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash for AMD FLASH
- * A word is 16 or 32 bits, whichever the bus width of the flash bank
- * (not an individual chip) is.
- *
- * returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
-{
- ulong start;
- int flag;
- int res = 0; /* result, assume success */
- FPWV *base; /* first address in flash bank */
-
- /* Check if Flash is (sufficiently) erased */
- if ((*dest & data) != data) {
- return (2);
- }
-
-
- base = (FPWV *)(info->start[0]);
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
- base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
- base[FLASH_CYCLE1] = (FPW)0x00A000A0; /* selects program mode */
-
- *dest = data; /* start programming the data */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer (0);
-
- /* data polling for D7 */
- while (res == 0 && (*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *dest = (FPW)0x00F000F0; /* reset bank */
- res = 1;
- }
- }
-
- return (res);
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash for Intel FLASH
- * A word is 16 or 32 bits, whichever the bus width of the flash bank
- * (not an individual chip) is.
- *
- * returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word_intel (flash_info_t *info, FPWV *dest, FPW data)
-{
- ulong start;
- int flag;
- int res = 0; /* result, assume success */
-
- /* Check if Flash is (sufficiently) erased */
- if ((*dest & data) != data) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *dest = (FPW)0x00500050; /* clear status register */
- *dest = (FPW)0x00FF00FF; /* make sure in read mode */
- *dest = (FPW)0x00400040; /* program setup */
-
- *dest = data; /* start programming the data */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer (0);
-
- while (res == 0 && (*dest & (FPW)0x00800080) != (FPW)0x00800080) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *dest = (FPW)0x00B000B0; /* Suspend program */
- res = 1;
- }
- }
-
- if (res == 0 && (*dest & (FPW)0x00100010))
- res = 1; /* write failed, time out error is close enough */
-
- *dest = (FPW)0x00500050; /* clear status register */
- *dest = (FPW)0x00FF00FF; /* make sure in read mode */
-
- return (res);
-}
diff --git a/board/incaip/incaip.c b/board/incaip/incaip.c
deleted file mode 100644
index 217b8af..0000000
--- a/board/incaip/incaip.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <netdev.h>
-#include <asm/addrspace.h>
-#include <asm/inca-ip.h>
-#include <asm/io.h>
-#include <asm/reboot.h>
-
-extern uint incaip_get_cpuclk(void);
-
-void _machine_restart(void)
-{
- *INCA_IP_WDT_RST_REQ = 0x3f;
-}
-
-static ulong max_sdram_size(void)
-{
- /* The only supported SDRAM data width is 16bit.
- */
-#define CONFIG_SYS_DW 2
-
- /* The only supported number of SDRAM banks is 4.
- */
-#define CONFIG_SYS_NB 4
-
- ulong cfgpb0 = *INCA_IP_SDRAM_MC_CFGPB0;
- int cols = cfgpb0 & 0xF;
- int rows = (cfgpb0 & 0xF0) >> 4;
- ulong size = (1 << (rows + cols)) * CONFIG_SYS_DW * CONFIG_SYS_NB;
-
- return size;
-}
-
-phys_size_t initdram(int board_type)
-{
- int rows, cols, best_val = *INCA_IP_SDRAM_MC_CFGPB0;
- ulong size, max_size = 0;
- ulong our_address;
-
- asm volatile ("move %0, $25" : "=r" (our_address) :);
-
- /* Can't probe for RAM size unless we are running from Flash.
- */
- if (CPHYSADDR(our_address) < CPHYSADDR(PHYS_FLASH_1))
- {
- return max_sdram_size();
- }
-
- for (cols = 0x8; cols <= 0xC; cols++)
- {
- for (rows = 0xB; rows <= 0xD; rows++)
- {
- *INCA_IP_SDRAM_MC_CFGPB0 = (0x14 << 8) |
- (rows << 4) | cols;
- size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
- max_sdram_size());
-
- if (size > max_size)
- {
- best_val = *INCA_IP_SDRAM_MC_CFGPB0;
- max_size = size;
- }
- }
- }
-
- *INCA_IP_SDRAM_MC_CFGPB0 = best_val;
- return max_size;
-}
-
-int checkboard (void)
-{
- unsigned long chipid = *INCA_IP_WDT_CHIPID;
- int part_num;
-
- puts ("Board: INCA-IP ");
- part_num = (chipid >> 12) & 0xffff;
- switch (part_num) {
- case 0xc0:
- printf ("Standard Version, ");
- break;
- case 0xc1:
- printf ("Basic Version, ");
- break;
- default:
- printf ("Unknown Part Number 0x%x ", part_num);
- break;
- }
-
- printf ("Chip V1.%ld, ", (chipid >> 28));
-
- printf("CPU Speed %d MHz\n", incaip_get_cpuclk()/1000000);
-
- set_io_port_base(0);
-
- return 0;
-}
-
-#if defined(CONFIG_INCA_IP_SWITCH)
-int board_eth_init(bd_t *bis)
-{
- return inca_switch_initialize(bis);
-}
-#endif
diff --git a/board/incaip/lowlevel_init.S b/board/incaip/lowlevel_init.S
deleted file mode 100644
index b6cf6a9..0000000
--- a/board/incaip/lowlevel_init.S
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * Memory sub-system initialization code for INCA-IP development board.
- *
- * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <asm/regdef.h>
-
-
-#define EBU_MODUL_BASE 0xB8000200
-#define EBU_CLC(value) 0x0000(value)
-#define EBU_CON(value) 0x0010(value)
-#define EBU_ADDSEL0(value) 0x0020(value)
-#define EBU_ADDSEL1(value) 0x0024(value)
-#define EBU_ADDSEL2(value) 0x0028(value)
-#define EBU_BUSCON0(value) 0x0060(value)
-#define EBU_BUSCON1(value) 0x0064(value)
-#define EBU_BUSCON2(value) 0x0068(value)
-
-#define MC_MODUL_BASE 0xBF800000
-#define MC_ERRCAUSE(value) 0x0100(value)
-#define MC_ERRADDR(value) 0x0108(value)
-#define MC_IOGP(value) 0x0800(value)
-#define MC_SELFRFSH(value) 0x0A00(value)
-#define MC_CTRLENA(value) 0x1000(value)
-#define MC_MRSCODE(value) 0x1008(value)
-#define MC_CFGDW(value) 0x1010(value)
-#define MC_CFGPB0(value) 0x1018(value)
-#define MC_LATENCY(value) 0x1038(value)
-#define MC_TREFRESH(value) 0x1040(value)
-
-#define CGU_MODUL_BASE 0xBF107000
-#define CGU_PLL1CR(value) 0x0008(value)
-#define CGU_DIVCR(value) 0x0010(value)
-#define CGU_MUXCR(value) 0x0014(value)
-#define CGU_PLL1SR(value) 0x000C(value)
-
- .set noreorder
-
-
-/*
- * void ebu_init(long)
- *
- * a0 has the clock value we are going to run at
- */
- .globl ebu_init
- .ent ebu_init
-ebu_init:
-__ebu_init:
-
- li t1, EBU_MODUL_BASE
- li t2, 0xA0000041
- sw t2, EBU_ADDSEL0(t1)
- li t2, 0xA0800041
- sw t2, EBU_ADDSEL2(t1)
- li t2, 0xBE0000F1
- sw t2, EBU_ADDSEL1(t1)
-
- li t3, 100000000
- beq a0, t3, 1f
- nop
- li t3, 133000000
- beq a0, t3, 2f
- nop
- li t3, 150000000
- beq a0, t3, 2f
- nop
- b 3f
- nop
-
- /* 100 MHz */
-1:
- li t2, 0x8841417D
- sw t2, EBU_BUSCON0(t1)
- sw t2, EBU_BUSCON2(t1)
- li t2, 0x684142BD
- b 3f
- sw t2, EBU_BUSCON1(t1) /* delay slot */
-
- /* 133 or 150 MHz */
-2:
- li t2, 0x8841417E
- sw t2, EBU_BUSCON0(t1)
- sw t2, EBU_BUSCON2(t1)
- li t2, 0x684143FD
- sw t2, EBU_BUSCON1(t1)
-3:
- jr ra
- nop
-
- .end ebu_init
-
-
-/*
- * void cgu_init(long)
- *
- * a0 has the clock value
- */
- .globl cgu_init
- .ent cgu_init
-cgu_init:
-__cgu_init:
-
- li t1, CGU_MODUL_BASE
-
- li t3, 100000000
- beq a0, t3, 1f
- nop
- li t3, 133000000
- beq a0, t3, 2f
- nop
- li t3, 150000000
- beq a0, t3, 3f
- nop
- b 5f
- nop
-
- /* 100 MHz clock */
-1:
- li t2, 0x80000014
- sw t2, CGU_DIVCR(t1)
- li t2, 0x80000000
- sw t2, CGU_MUXCR(t1)
- li t2, 0x800B0001
- b 5f
- sw t2, CGU_PLL1CR(t1) /* delay slot */
-
- /* 133 MHz clock */
-2:
- li t2, 0x80000054
- sw t2, CGU_DIVCR(t1)
- li t2, 0x80000000
- sw t2, CGU_MUXCR(t1)
- li t2, 0x800B0001
- b 5f
- sw t2, CGU_PLL1CR(t1) /* delay slot */
-
- /* 150 MHz clock */
-3:
- li t2, 0x80000017
- sw t2, CGU_DIVCR(t1)
- li t2, 0xC00B0001
- sw t2, CGU_PLL1CR(t1)
- li t3, 0x80000000
-4:
- lw t2, CGU_PLL1SR(t1)
- and t2, t2, t3
- beq t2, zero, 4b
- nop
- li t2, 0x80000001
- sw t2, CGU_MUXCR(t1)
-5:
- jr ra
- nop
-
- .end cgu_init
-
-
-/*
- * void sdram_init(long)
- *
- * a0 has the clock value
- */
- .globl sdram_init
- .ent sdram_init
-sdram_init:
-__sdram_init:
-
- li t1, MC_MODUL_BASE
-
-#if 0
- /* Disable memory controller before changing any of its registers */
- sw zero, MC_CTRLENA(t1)
-#endif
-
- li t2, 100000000
- beq a0, t2, 1f
- nop
- li t2, 133000000
- beq a0, t2, 2f
- nop
- li t2, 150000000
- beq a0, t2, 3f
- nop
- b 5f
- nop
-
- /* 100 MHz clock */
-1:
- /* Set clock ratio (clkrat=1:1, rddel=3) */
- li t2, 0x00000003
- sw t2, MC_IOGP(t1)
-
- /* Set sdram refresh rate (4K/64ms @ 100MHz) */
- li t2, 0x0000061A
- b 4f
- sw t2, MC_TREFRESH(t1)
-
- /* 133 MHz clock */
-2:
- /* Set clock ratio (clkrat=1:1, rddel=3) */
- li t2, 0x00000003
- sw t2, MC_IOGP(t1)
-
- /* Set sdram refresh rate (4K/64ms @ 133MHz) */
- li t2, 0x00000822
- b 4f
- sw t2, MC_TREFRESH(t1)
-
- /* 150 MHz clock */
-3:
- /* Set clock ratio (clkrat=3:2, rddel=4) */
- li t2, 0x00000014
- sw t2, MC_IOGP(t1)
-
- /* Set sdram refresh rate (4K/64ms @ 150MHz) */
- li t2, 0x00000927
- sw t2, MC_TREFRESH(t1)
-
-4:
- /* Clear Error log registers */
- sw zero, MC_ERRCAUSE(t1)
- sw zero, MC_ERRADDR(t1)
-
- /* Clear Power-down registers */
- sw zero, MC_SELFRFSH(t1)
-
- /* Set CAS Latency */
- li t2, 0x00000020 /* CL = 2 */
- sw t2, MC_MRSCODE(t1)
-
- /* Set word width to 16 bit */
- li t2, 0x2
- sw t2, MC_CFGDW(t1)
-
- /* Set CS0 to SDRAM parameters */
- li t2, 0x000014C9
- sw t2, MC_CFGPB0(t1)
-
- /* Set SDRAM latency parameters */
- li t2, 0x00026325 /* BC PC100 */
- sw t2, MC_LATENCY(t1)
-
-5:
- /* Finally enable the controller */
- li t2, 0x00000001
- sw t2, MC_CTRLENA(t1)
-
- jr ra
- nop
-
- .end sdram_init
-
-
- .globl lowlevel_init
- .ent lowlevel_init
-lowlevel_init:
-
- /* Disable Watchdog.
- */
- la t9, disable_incaip_wdt
- jalr t9
- nop
-
- /* EBU, CGU and SDRAM Initialization.
- */
- li a0, CONFIG_CPU_CLOCK_RATE
- move t0, ra
-
- /* We rely on the fact that neither ebu_init() nor cgu_init() nor sdram_init()
- * modify t0 and a0.
- */
- bal __cgu_init
- nop
- bal __ebu_init
- nop
- bal __sdram_init
- nop
- move ra, t0
-
- jr ra
- nop
-
- .end lowlevel_init
generated by cgit v1.1 at 2024-12-27 19:45:47 +0000