update/fix IXDP425 / IXDPG425 boards

Signed-off-by: Michael Schwingen <michael@schwingen.org>

3 files changed, 133 insertions, 451 deletions

diff --git a/board/ixdp425/config.mk b/board/ixdp425/config.mk
deleted file mode 100644
index 509c894..0000000
--- a/board/ixdp425/config.mk
+++ /dev/null
@@ -1,2 +0,0 @@
-#
-CONFIG_SYS_TEXT_BASE = 0x00f80000
diff --git a/board/ixdp425/flash.c b/board/ixdp425/flash.c
deleted file mode 100644
index f1d9190..0000000
--- a/board/ixdp425/flash.c
+++ /dev/null
@@ -1,427 +0,0 @@
-/*
- * (C) Copyright 2001
- * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
- *
- * (C) Copyright 2001
- * 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 <common.h>
-#include <linux/byteorder/swab.h>
-
-
-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)			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")
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-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);
-
-/*-----------------------------------------------------------------------
- */
-
-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 + _bss_start - _armboot_start,
-		       &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;
-
-	if (info->flash_id == FLASH_UNKNOWN) {
-		return;
-	}
-
-	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
-		for (i = 0; i < info->sector_count; i++) {
-			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_28F128J3A:
-		printf ("28F128J3A\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_28F128J3A:
-		info->flash_id += FLASH_28F128J3A;
-		info->sector_count = 128;
-		info->size = 0x02000000;
-		break;		/* => 16 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);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
-	int flag, prot, sect;
-	ulong type;
-	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");
-	}
-
-	/* 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);
-
-			/* 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");
-					*addr = (FPW) 0x00B000B0;	/* suspend erase         */
-					*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
-					rcode = 1;
-					break;
-				}
-			}
-
-			*addr = (FPW) 0x00500050;	/* clear status register cmd.   */
-			*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 (%lx)\n", (ulong) addr,
-			(ulong) * addr);
-		return (2);
-	}
-	/* 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/ixdp425/ixdp425.c b/board/ixdp425/ixdp425.c
index a29d584..7269458 100644
--- a/board/ixdp425/ixdp425.c
+++ b/board/ixdp425/ixdp425.c
@@ -33,24 +33,82 @@
 #include <malloc.h>
 #include <netdev.h>
 #include <asm/arch/ixp425.h>
+#include <asm/io.h>
+#ifdef CONFIG_PCI
+#include <pci.h>
+#include <asm/arch/ixp425pci.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#define IXDP425_LED_PORT 0x52000000 /* 4-digit hex display */
+
+int board_early_init_f(void)
+{
+	/* CS2: LED port */
+	writel(0xbcff0002, IXP425_EXP_CS2);
+	writew(0x0001, IXDP425_LED_PORT); /* output postcode to LEDs */
+
+	return 0;
+}
+
+#ifdef CONFIG_PCI
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_ixpdp425_config_table[] = {
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x00, PCI_ANY_ID,
+	  pci_cfgfunc_config_device,
+	  { 0x400,
+	    0x40000000,
+	    PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } },
+
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x01, PCI_ANY_ID,
+	  pci_cfgfunc_config_device,
+	  { 0x800,
+	    0x40010000,
+	    PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } },
+
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x02, PCI_ANY_ID,
+	  pci_cfgfunc_config_device,
+	  { 0xc00,
+	    0x40020000,
+	    PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } },
+
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x03, PCI_ANY_ID,
+	  pci_cfgfunc_config_device,
+	  { 0x1000,
+	    0x40030000,
+	    PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } },
+	{ }
+};
+#endif
+
+struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+	config_table: pci_ixpdp425_config_table,
+#endif
+};
+#endif /* CONFIG_PCI */
+
+
 /*
  * Miscelaneous platform dependent initialisations
  */
-int board_init (void)
+int board_init(void)
 {
+	writew(0x0002, IXDP425_LED_PORT); /* output postcode to LEDs */
+
+#ifdef CONFIG_IXDPG425
+	/* arch number of IXDP */
+	gd->bd->bi_arch_number = MACH_TYPE_IXDPG425;
+#else
 	/* arch number of IXDP */
 	gd->bd->bi_arch_number = MACH_TYPE_IXDP425;
+#endif
 
 	/* adress of boot parameters */
 	gd->bd->bi_boot_params = 0x00000100;
 
 #ifdef CONFIG_IXDPG425
-	/* arch number of IXDP */
-	gd->bd->bi_arch_number = MACH_TYPE_IXDPG425;
-
 	/*
 	 * Get realtek RTL8305 switch and SLIC out of reset
 	 */
@@ -60,19 +118,56 @@ int board_init (void)
 	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_SLIC_RESET_N);
 
 	/*
-	 * Setup GPIO's for PCI INTA & INTB
+	 * Setup GPIOs for PCI INTA & INTB
 	 */
 	GPIO_OUTPUT_DISABLE(CONFIG_SYS_GPIO_PCI_INTA_N);
 	GPIO_INT_ACT_LOW_SET(CONFIG_SYS_GPIO_PCI_INTA_N);
 	GPIO_OUTPUT_DISABLE(CONFIG_SYS_GPIO_PCI_INTB_N);
 	GPIO_INT_ACT_LOW_SET(CONFIG_SYS_GPIO_PCI_INTB_N);
 
-	/*
-	 * Setup GPIO's for 33MHz clock output
-	 */
-	*IXP425_GPIO_GPCLKR = 0x01FF01FF;
+	/* Setup GPIOs for 33MHz clock output */
+	writel(0x01FF01FF, IXP425_GPIO_GPCLKR);
+
 	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_CLK);
 	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_EXTBUS_CLK);
+
+	/* set GPIO8..11 interrupt type to active low */
+	writel((0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1, IXP425_GPIO_GPIT2R);
+
+	/* clear pending interrupts */
+	writel(-1, IXP425_GPIO_GPISR);
+
+	/* assert PCI reset */
+	GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_SLIC_RESET_N);
+
+	udelay(533);
+
+	/* deassert PCI reset */
+	GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_SLIC_RESET_N);
+
+	udelay(533);
+
+#else /* IXDP425 */
+	/* Setup GPIOs for 33MHz ExpBus and PCI clock output */
+	writel(0x01FF01FF, IXP425_GPIO_GPCLKR);
+	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_CLK);
+	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_EXTBUS_CLK);
+	GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_RESET_N);
+
+	/* set GPIO8..11 interrupt type to active low */
+	writel((0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1, IXP425_GPIO_GPIT2R);
+	/* clear pending interrupts */
+	writel(-1, IXP425_GPIO_GPISR);
+
+	/* assert PCI reset */
+	GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_PCI_RESET_N);
+
+	udelay(533);
+
+	/* deassert PCI reset */
+	GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_PCI_RESET_N);
+
+	udelay(533);
 #endif
 
 	return 0;
@@ -98,30 +193,46 @@ int checkboard(void)
 	}
 	putc('\n');
 
-	return (0);
+	return 0;
 }
 
-int dram_init (void)
+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);
+	/* we can only map 64MB via PCI, so we limit memory
+	   until a better solution is implemented. */
+#ifdef CONFIG_PCI
+	gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, 64<<20);
+#else
+	gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, 256<<20);
+#endif
+	return 0;
 }
 
-#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
-extern struct pci_controller hose;
-extern void pci_ixp_init(struct pci_controller * hose);
-
+#ifdef CONFIG_PCI
 void pci_init_board(void)
 {
-	extern void pci_ixp_init (struct pci_controller *hose);
-
 	pci_ixp_init(&hose);
 }
+
+/*
+ * dev 0 on the PCI bus is not the host bridge, so we have to override
+ * these functions in order to not skip PCI slot 0 during configuration.
+*/
+int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
+{
+	return 0;
+}
+int pci_print_dev(struct pci_controller *hose, pci_dev_t dev)
+{
+	return 1;
+}
+
 #endif
 
 int board_eth_init(bd_t *bis)
 {
-	return pci_eth_init(bis);
+#ifdef CONFIG_PCI
+	pci_eth_init(bis);
+#endif
+	return cpu_eth_init(bis);
 }