[U-Boot] [RFC PATCH 1/6] integratorap: split pci support

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Fri May 1 18:41:27 CEST 2009


Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Cc: Peter Pearse <Peter.Pearse at arm.com>
---
 board/armltd/integratorap/Makefile                 |   19 +-
 board/armltd/integratorap/integratorap.c           |  946 ++++++--------------
 .../armltd/integratorap/{integratorap.c => pci.c}  |  262 +------
 3 files changed, 302 insertions(+), 925 deletions(-)
 rewrite board/armltd/integratorap/integratorap.c (63%)
 rename board/armltd/integratorap/{integratorap.c => pci.c} (69%)

diff --git a/board/armltd/integratorap/Makefile b/board/armltd/integratorap/Makefile
index 79f501a..a6193c7 100644
--- a/board/armltd/integratorap/Makefile
+++ b/board/armltd/integratorap/Makefile
@@ -29,18 +29,21 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= integratorap.o flash.o
-SOBJS	:= lowlevel_init.o
+SOBJS-y	:= lowlevel_init.o
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
+COBJS-y	:= integratorap.o
+COBJS-y	+= flash.o
+COBJS-$(CONFIG_PCI) += pci.o
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+COBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS-y))
+
+$(LIB):	$(obj).depend $(COBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(COBJS) $(SOBJS)
 
 clean:
-	rm -f $(SOBJS) $(OBJS)
+	rm -f $(SOBJS) $(COBJS)
 
 distclean:	clean
 	rm -f $(LIB) core *.bak $(obj).depend
diff --git a/board/armltd/integratorap/integratorap.c b/board/armltd/integratorap/integratorap.c
dissimilarity index 63%
index 5ececd6..d458fe6 100644
--- a/board/armltd/integratorap/integratorap.c
+++ b/board/armltd/integratorap/integratorap.c
@@ -1,656 +1,290 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger at sysgo.de>
- *
- * (C) Copyright 2002
- * David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
- *
- * (C) Copyright 2003
- * Texas Instruments, <www.ti.com>
- * Kshitij Gupta <Kshitij at ti.com>
- *
- * (C) Copyright 2004
- * ARM Ltd.
- * Philippe Robin, <philippe.robin at arm.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>
-
-#ifdef CONFIG_PCI
-#include <pci.h>
-#endif
-
-#include <netdev.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void flash__init (void);
-void ether__init (void);
-void peripheral_power_enable (void);
-
-#if defined(CONFIG_SHOW_BOOT_PROGRESS)
-void show_boot_progress(int progress)
-{
-	printf("Boot reached stage %d\n", progress);
-}
-#endif
-
-#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
-
-static inline void delay (unsigned long loops)
-{
-	__asm__ volatile ("1:\n"
-		"subs %0, %1, #1\n"
-		"bne 1b":"=r" (loops):"0" (loops));
-}
-
-/*
- * Miscellaneous platform dependent initialisations
- */
-
-int board_init (void)
-{
-	/* arch number of Integrator Board */
-	gd->bd->bi_arch_number = MACH_TYPE_INTEGRATOR;
-
-	/* adress of boot parameters */
-	gd->bd->bi_boot_params = 0x00000100;
-
-	gd->flags = 0;
-
-#ifdef CONFIG_CM_REMAP
-extern void cm_remap(void);
-	cm_remap();	/* remaps writeable memory to 0x00000000 */
-#endif
-
-	icache_enable ();
-
-	flash__init ();
-	return 0;
-}
-
-
-int misc_init_r (void)
-{
-#ifdef CONFIG_PCI
-	pci_init();
-#endif
-	setenv("verify", "n");
-	return (0);
-}
-
-/*
- * Initialize PCI Devices, report devices found.
- */
-#ifdef CONFIG_PCI
-
-#ifndef CONFIG_PCI_PNP
-
-static struct pci_config_table pci_integrator_config_table[] = {
-	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
-	  pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
-				       PCI_ENET0_MEMADDR,
-				       PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
-	{ }
-};
-#endif
-
-/* V3 access routines */
-#define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v))
-#define _V3Read16(o)	(*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)))
-
-#define _V3Write32(o,v) (*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned int)(v))
-#define _V3Read32(o)	(*(volatile unsigned int *)(PCI_V3_BASE + (unsigned int)(o)))
-
-/* Compute address necessary to access PCI config space for the given */
-/* bus and device. */
-#define PCI_CONFIG_ADDRESS( __bus, __devfn, __offset ) ({				\
-	unsigned int __address, __devicebit;						\
-	unsigned short __mapaddress;							\
-	unsigned int __dev = PCI_DEV (__devfn); /* FIXME to check!! (slot?) */		\
-											\
-	if (__bus == 0) {								\
-		/* local bus segment so need a type 0 config cycle */			\
-		/* build the PCI configuration "address" with one-hot in A31-A11 */	\
-		__address = PCI_CONFIG_BASE;						\
-		__address |= ((__devfn & 0x07) << 8);					\
-		__address |= __offset & 0xFF;						\
-		__mapaddress = 0x000A;	/* 101=>config cycle, 0=>A1=A0=0 */		\
-		__devicebit = (1 << (__dev + 11));					\
-											\
-		if ((__devicebit & 0xFF000000) != 0) {					\
-			/* high order bits are handled by the MAP register */		\
-			__mapaddress |= (__devicebit >> 16);				\
-		} else {								\
-			/* low order bits handled directly in the address */		\
-			__address |= __devicebit;					\
-		}									\
-	} else {		/* bus !=0 */						\
-		/* not the local bus segment so need a type 1 config cycle */		\
-		/* A31-A24 are don't care (so clear to 0) */				\
-		__mapaddress = 0x000B;	/* 101=>config cycle, 1=>A1&A0 from PCI_CFG */	\
-		__address = PCI_CONFIG_BASE;						\
-		__address |= ((__bus & 0xFF) << 16);	/* bits 23..16 = bus number	*/  \
-		__address |= ((__dev & 0x1F) << 11);	/* bits 15..11 = device number	*/  \
-		__address |= ((__devfn & 0x07) << 8);	/* bits 10..8  = function number */ \
-		__address |= __offset & 0xFF;	/* bits	 7..0  = register number */	\
-	}										\
-	_V3Write16 (V3_LB_MAP1, __mapaddress);						\
-	__address;									\
-})
-
-/* _V3OpenConfigWindow - open V3 configuration window */
-#define _V3OpenConfigWindow() {								\
-	/* Set up base0 to see all 512Mbytes of memory space (not	     */		\
-	/* prefetchable), this frees up base1 for re-use by configuration*/		\
-	/* memory */									\
-											\
-	_V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) |			\
-				     0x90 | V3_LB_BASE_M_ENABLE));			\
-	/* Set up base1 to point into configuration space, note that MAP1 */		\
-	/* register is set up by pciMakeConfigAddress(). */				\
-											\
-	_V3Write32 (V3_LB_BASE1, ((CPU_PCI_CNFG_ADRS & 0xFFF00000) |			\
-				     0x40 | V3_LB_BASE_M_ENABLE));			\
-}
-
-/* _V3CloseConfigWindow - close V3 configuration window */
-#define _V3CloseConfigWindow() {							\
-    /* Reassign base1 for use by prefetchable PCI memory */				\
-	_V3Write32 (V3_LB_BASE1, (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000)	\
-					| 0x84 | V3_LB_BASE_M_ENABLE));			\
-	_V3Write16 (V3_LB_MAP1,								\
-	    (((INTEGRATOR_PCI_BASE + 0x10000000) & 0xFFF00000) >> 16) | 0x0006);	\
-											\
-	/* And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */	\
-											\
-	_V3Write32 (V3_LB_BASE0, ((INTEGRATOR_PCI_BASE & 0xFFF00000) |			\
-			     0x80 | V3_LB_BASE_M_ENABLE));				\
-}
-
-static int pci_integrator_read_byte (struct pci_controller *hose, pci_dev_t dev,
-				     int offset, unsigned char *val)
-{
-	_V3OpenConfigWindow ();
-	*val = *(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-							       PCI_FUNC (dev),
-							       offset);
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-
-static int pci_integrator_read__word (struct pci_controller *hose,
-				      pci_dev_t dev, int offset,
-				      unsigned short *val)
-{
-	_V3OpenConfigWindow ();
-	*val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-								PCI_FUNC (dev),
-								offset);
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-
-static int pci_integrator_read_dword (struct pci_controller *hose,
-				      pci_dev_t dev, int offset,
-				      unsigned int *val)
-{
-	_V3OpenConfigWindow ();
-	*val = *(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-								PCI_FUNC (dev),
-								offset);
-	*val |= (*(volatile unsigned int *)
-		 PCI_CONFIG_ADDRESS (PCI_BUS (dev), PCI_FUNC (dev),
-				     (offset + 2))) << 16;
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-
-static int pci_integrator_write_byte (struct pci_controller *hose,
-				      pci_dev_t dev, int offset,
-				      unsigned char val)
-{
-	_V3OpenConfigWindow ();
-	*(volatile unsigned char *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-							PCI_FUNC (dev),
-							offset) = val;
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-
-static int pci_integrator_write_word (struct pci_controller *hose,
-				      pci_dev_t dev, int offset,
-				      unsigned short val)
-{
-	_V3OpenConfigWindow ();
-	*(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-							 PCI_FUNC (dev),
-							 offset) = val;
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-
-static int pci_integrator_write_dword (struct pci_controller *hose,
-				       pci_dev_t dev, int offset,
-				       unsigned int val)
-{
-	_V3OpenConfigWindow ();
-	*(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-							 PCI_FUNC (dev),
-							 offset) = (val & 0xFFFF);
-	*(volatile unsigned short *) PCI_CONFIG_ADDRESS (PCI_BUS (dev),
-							 PCI_FUNC (dev),
-							 (offset + 2)) = ((val >> 16) & 0xFFFF);
-	_V3CloseConfigWindow ();
-
-	return 0;
-}
-/******************************
- * PCI initialisation
- ******************************/
-
-struct pci_controller integrator_hose = {
-#ifndef CONFIG_PCI_PNP
-	config_table: pci_integrator_config_table,
-#endif
-};
-
-void pci_init_board (void)
-{
-	volatile int i, j;
-	struct pci_controller *hose = &integrator_hose;
-
-	/* setting this register will take the V3 out of reset */
-
-	*(volatile unsigned int *) (INTEGRATOR_SC_PCIENABLE) = 1;
-
-	/* wait a few usecs to settle the device and the PCI bus */
-
-	for (i = 0; i < 100; i++)
-		j = i + 1;
-
-	/* Now write the Base I/O Address Word to V3_BASE + 0x6C */
-
-	*(volatile unsigned short *) (V3_BASE + V3_LB_IO_BASE) =
-		(unsigned short) (V3_BASE >> 16);
-
-	do {
-		*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) = 0xAA;
-		*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA + 4) =
-			0x55;
-	} while (*(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA) != 0xAA
-		 || *(volatile unsigned char *) (V3_BASE + V3_MAIL_DATA +
-						 4) != 0x55);
-
-	/* Make sure that V3 register access is not locked, if it is, unlock it */
-
-	if ((*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &
-	     V3_SYSTEM_M_LOCK)
-	    == V3_SYSTEM_M_LOCK)
-		*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) = 0xA05F;
-
-	/* Ensure that the slave accesses from PCI are disabled while we */
-	/* setup windows */
-
-	*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) &=
-		~(V3_COMMAND_M_MEM_EN | V3_COMMAND_M_IO_EN);
-
-	/* Clear RST_OUT to 0; keep the PCI bus in reset until we've finished */
-
-	*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) &=
-		~V3_SYSTEM_M_RST_OUT;
-
-	/* Make all accesses from PCI space retry until we're ready for them */
-
-	*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) |=
-		V3_PCI_CFG_M_RETRY_EN;
-
-	/* Set up any V3 PCI Configuration Registers that we absolutely have to */
-	/* LB_CFG controls Local Bus protocol. */
-	/* Enable LocalBus byte strobes for READ accesses too. */
-	/* set bit 7 BE_IMODE and bit 6 BE_OMODE */
-
-	*(volatile unsigned short *) (V3_BASE + V3_LB_CFG) |= 0x0C0;
-
-	/* PCI_CMD controls overall PCI operation. */
-	/* Enable PCI bus master. */
-
-	*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) |= 0x04;
-
-	/* PCI_MAP0 controls where the PCI to CPU memory window is on Local Bus */
-
-	*(volatile unsigned int *) (V3_BASE + V3_PCI_MAP0) =
-		(INTEGRATOR_BOOT_ROM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_512M |
-					      V3_PCI_MAP_M_REG_EN |
-					      V3_PCI_MAP_M_ENABLE);
-
-	/* PCI_BASE0 is the PCI address of the start of the window */
-
-	*(volatile unsigned int *) (V3_BASE + V3_PCI_BASE0) =
-		INTEGRATOR_BOOT_ROM_BASE;
-
-	/* PCI_MAP1 is LOCAL address of the start of the window */
-
-	*(volatile unsigned int *) (V3_BASE + V3_PCI_MAP1) =
-		(INTEGRATOR_HDR0_SDRAM_BASE) | (V3_PCI_MAP_M_ADR_SIZE_1024M |
-						V3_PCI_MAP_M_REG_EN |
-						V3_PCI_MAP_M_ENABLE);
-
-	/* PCI_BASE1 is the PCI address of the start of the window */
-
-	*(volatile unsigned int *) (V3_BASE + V3_PCI_BASE1) =
-		INTEGRATOR_HDR0_SDRAM_BASE;
-
-	/* Set up the windows from local bus memory into PCI configuration, */
-	/* I/O and Memory. */
-	/* PCI I/O, LB_BASE2 and LB_MAP2 are used exclusively for this. */
-
-	*(volatile unsigned short *) (V3_BASE + V3_LB_BASE2) =
-		((CPU_PCI_IO_ADRS >> 24) << 8) | V3_LB_BASE_M_ENABLE;
-	*(volatile unsigned short *) (V3_BASE + V3_LB_MAP2) = 0;
-
-	/* PCI Configuration, use LB_BASE1/LB_MAP1. */
-
-	/* PCI Memory use LB_BASE0/LB_MAP0 and LB_BASE1/LB_MAP1 */
-	/* Map first 256Mbytes as non-prefetchable via BASE0/MAP0 */
-	/* (INTEGRATOR_PCI_BASE == PCI_MEM_BASE) */
-
-	*(volatile unsigned int *) (V3_BASE + V3_LB_BASE0) =
-		INTEGRATOR_PCI_BASE | (0x80 | V3_LB_BASE_M_ENABLE);
-
-	*(volatile unsigned short *) (V3_BASE + V3_LB_MAP0) =
-		((INTEGRATOR_PCI_BASE >> 20) << 0x4) | 0x0006;
-
-	/* Map second 256 Mbytes as prefetchable via BASE1/MAP1 */
-
-	*(volatile unsigned int *) (V3_BASE + V3_LB_BASE1) =
-		INTEGRATOR_PCI_BASE | (0x84 | V3_LB_BASE_M_ENABLE);
-
-	*(volatile unsigned short *) (V3_BASE + V3_LB_MAP1) =
-		(((INTEGRATOR_PCI_BASE + 0x10000000) >> 20) << 4) | 0x0006;
-
-	/* Allow accesses to PCI Configuration space */
-	/* and set up A1, A0 for type 1 config cycles */
-
-	*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG) =
-		((*(volatile unsigned short *) (V3_BASE + V3_PCI_CFG)) &
-		 ~(V3_PCI_CFG_M_RETRY_EN | V3_PCI_CFG_M_AD_LOW1)) |
-		V3_PCI_CFG_M_AD_LOW0;
-
-	/* now we can allow in PCI MEMORY accesses */
-
-	*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD) =
-		(*(volatile unsigned short *) (V3_BASE + V3_PCI_CMD)) |
-		V3_COMMAND_M_MEM_EN;
-
-	/* Set RST_OUT to take the PCI bus is out of reset, PCI devices can */
-	/* initialise and lock the V3 system register so that no one else */
-	/* can play with it */
-
-	*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) =
-		(*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) |
-		V3_SYSTEM_M_RST_OUT;
-
-	*(volatile unsigned short *) (V3_BASE + V3_SYSTEM) =
-		(*(volatile unsigned short *) (V3_BASE + V3_SYSTEM)) |
-		V3_SYSTEM_M_LOCK;
-
-	/*
-	 * Register the hose
-	 */
-	hose->first_busno = 0;
-	hose->last_busno = 0xff;
-
-	/* System memory space */
-	pci_set_region (hose->regions + 0,
-			0x00000000, 0x40000000, 0x01000000,
-			PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
-	/* PCI Memory - config space */
-	pci_set_region (hose->regions + 1,
-			0x00000000, 0x62000000, 0x01000000, PCI_REGION_MEM);
-
-	/* PCI V3 regs */
-	pci_set_region (hose->regions + 2,
-			0x00000000, 0x61000000, 0x00080000, PCI_REGION_MEM);
-
-	/* PCI I/O space */
-	pci_set_region (hose->regions + 3,
-			0x00000000, 0x60000000, 0x00010000, PCI_REGION_IO);
-
-	pci_set_ops (hose,
-		     pci_integrator_read_byte,
-		     pci_integrator_read__word,
-		     pci_integrator_read_dword,
-		     pci_integrator_write_byte,
-		     pci_integrator_write_word, pci_integrator_write_dword);
-
-	hose->region_count = 4;
-
-	pci_register_hose (hose);
-
-	pciauto_config_init (hose);
-	pciauto_config_device (hose, 0);
-
-	hose->last_busno = pci_hose_scan (hose);
-}
-#endif
-
-/******************************
- Routine:
- Description:
-******************************/
-void flash__init (void)
-{
-}
-/*************************************************************
- Routine:ether__init
- Description: take the Ethernet controller out of reset and wait
-			   for the EEPROM load to complete.
-*************************************************************/
-void ether__init (void)
-{
-}
-
-/******************************
- 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;
-
-#ifdef CONFIG_CM_SPD_DETECT
-	{
-extern void dram_query(void);
-	unsigned long cm_reg_sdram;
-	unsigned long sdram_shift;
-
-	dram_query();	/* Assembler accesses to CM registers */
-			/* Queries the SPD values	      */
-
-	/* Obtain the SDRAM size from the CM SDRAM register */
-
-	cm_reg_sdram = *(volatile ulong *)(CM_BASE + OS_SDRAM);
-	/*   Register	      SDRAM size
-	 *
-	 *   0xXXXXXXbbb000bb	 16 MB
-	 *   0xXXXXXXbbb001bb	 32 MB
-	 *   0xXXXXXXbbb010bb	 64 MB
-	 *   0xXXXXXXbbb011bb	128 MB
-	 *   0xXXXXXXbbb100bb	256 MB
-	 *
-	 */
-	sdram_shift		 = ((cm_reg_sdram & 0x0000001C)/4)%4;
-	gd->bd->bi_dram[0].size	 = 0x01000000 << sdram_shift;
-
-	}
-#endif /* CM_SPD_DETECT */
-
-	return 0;
-}
-
-/* The Integrator/AP timer1 is clocked at 24MHz
- * can be divided by 16 or 256
- * and is a 16-bit counter
- */
-/* U-Boot expects a 32 bit timer running at CONFIG_SYS_HZ*/
-static ulong timestamp;		/* U-Boot ticks since startup	      */
-static ulong total_count = 0;	/* Total timer count		      */
-static ulong lastdec;		/* Timer reading at last call	      */
-static ulong div_clock	 = 256; /* Divisor applied to the timer clock */
-static ulong div_timer	 = 1;	/* Divisor to convert timer reading
-				 * change to U-Boot ticks
-				 */
-/* CONFIG_SYS_HZ = CONFIG_SYS_HZ_CLOCK/(div_clock * div_timer) */
-
-#define TIMER_LOAD_VAL 0x0000FFFFL
-#define READ_TIMER ((*(volatile ulong *)(CONFIG_SYS_TIMERBASE+4)) & 0x0000FFFFL)
-
-/* all function return values in U-Boot ticks i.e. (1/CONFIG_SYS_HZ) sec
- *  - unless otherwise stated
- */
-
-/* starts a counter
- * - the Integrator/AP timer issues an interrupt
- *   each time it reaches zero
- */
-int timer_init (void)
-{
-	/* Load timer with initial value */
-	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0) = TIMER_LOAD_VAL;
-	/* Set timer to be
-	 *	enabled		  1
-	 *	free-running	  0
-	 *	XX		 00
-	 *	divider 256	 10
-	 *	XX		 00
-	 */
-	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 8) = 0x00000088;
-	total_count = 0;
-	/* init the timestamp and lastdec value */
-	reset_timer_masked();
-
-	div_timer  = CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ;
-	div_timer /= div_clock;
-
-	return (0);
-}
-
-/*
- * timer without interrupts
- */
-void reset_timer (void)
-{
-	reset_timer_masked ();
-}
-
-ulong get_timer (ulong base_ticks)
-{
-	return get_timer_masked () - base_ticks;
-}
-
-void set_timer (ulong ticks)
-{
-	timestamp = ticks;
-	total_count = ticks * div_timer;
-	reset_timer_masked();
-}
-
-/* delay x useconds */
-void udelay (unsigned long usec)
-{
-	ulong tmo, tmp;
-
-	/* Convert to U-Boot ticks */
-	tmo  = usec * CONFIG_SYS_HZ;
-	tmo /= (1000000L);
-
-	tmp  = get_timer_masked();	/* get current timestamp */
-	tmo += tmp;			/* wake up timestamp	 */
-
-	while (get_timer_masked () < tmo) { /* loop till event */
-		/*NOP*/;
-	}
-}
-
-void reset_timer_masked (void)
-{
-	/* reset time */
-	lastdec	  = READ_TIMER; /* capture current decrementer value   */
-	timestamp = 0;		/* start "advancing" time stamp from 0 */
-}
-
-/* converts the timer reading to U-Boot ticks	       */
-/* the timestamp is the number of ticks since reset    */
-/* This routine does not detect wraps unless called regularly
-   ASSUMES a call at least every 16 seconds to detect every reload */
-ulong get_timer_masked (void)
-{
-	ulong now = READ_TIMER;		/* current count */
-
-	if (now > lastdec) {
-		/* Must have wrapped */
-		total_count += lastdec + TIMER_LOAD_VAL + 1 - now;
-	} else {
-		total_count += lastdec - now;
-	}
-	lastdec	  = now;
-	timestamp = total_count/div_timer;
-
-	return timestamp;
-}
-
-/* waits specified delay value and resets timestamp */
-void udelay_masked (unsigned long usec)
-{
-	udelay(usec);
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
-	return get_timer(0);
-}
-
-/*
- * Return the timebase clock frequency
- * i.e. how often the timer decrements
- */
-ulong get_tbclk (void)
-{
-	return CONFIG_SYS_HZ_CLOCK/div_clock;
-}
-
-int board_eth_init(bd_t *bis)
-{
-	return pci_eth_init(bis);
-}
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij at ti.com>
+ *
+ * (C) Copyright 2004
+ * ARM Ltd.
+ * Philippe Robin, <philippe.robin at arm.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 <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void flash__init (void);
+void ether__init (void);
+void peripheral_power_enable (void);
+
+#if defined(CONFIG_SHOW_BOOT_PROGRESS)
+void show_boot_progress(int progress)
+{
+	printf("Boot reached stage %d\n", progress);
+}
+#endif
+
+#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
+
+static inline void delay (unsigned long loops)
+{
+	__asm__ volatile ("1:\n"
+		"subs %0, %1, #1\n"
+		"bne 1b":"=r" (loops):"0" (loops));
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	/* arch number of Integrator Board */
+	gd->bd->bi_arch_number = MACH_TYPE_INTEGRATOR;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0x00000100;
+
+	gd->flags = 0;
+
+#ifdef CONFIG_CM_REMAP
+extern void cm_remap(void);
+	cm_remap();	/* remaps writeable memory to 0x00000000 */
+#endif
+
+	icache_enable ();
+
+	flash__init ();
+	return 0;
+}
+
+
+int misc_init_r (void)
+{
+#ifdef CONFIG_PCI
+	pci_init();
+#endif
+	setenv("verify", "n");
+	return (0);
+}
+
+
+/******************************
+ Routine:
+ Description:
+******************************/
+void flash__init (void)
+{
+}
+/*************************************************************
+ Routine:ether__init
+ Description: take the Ethernet controller out of reset and wait
+			   for the EEPROM load to complete.
+*************************************************************/
+void ether__init (void)
+{
+}
+
+/******************************
+ 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;
+
+#ifdef CONFIG_CM_SPD_DETECT
+	{
+extern void dram_query(void);
+	unsigned long cm_reg_sdram;
+	unsigned long sdram_shift;
+
+	dram_query();	/* Assembler accesses to CM registers */
+			/* Queries the SPD values	      */
+
+	/* Obtain the SDRAM size from the CM SDRAM register */
+
+	cm_reg_sdram = *(volatile ulong *)(CM_BASE + OS_SDRAM);
+	/*   Register	      SDRAM size
+	 *
+	 *   0xXXXXXXbbb000bb	 16 MB
+	 *   0xXXXXXXbbb001bb	 32 MB
+	 *   0xXXXXXXbbb010bb	 64 MB
+	 *   0xXXXXXXbbb011bb	128 MB
+	 *   0xXXXXXXbbb100bb	256 MB
+	 *
+	 */
+	sdram_shift		 = ((cm_reg_sdram & 0x0000001C)/4)%4;
+	gd->bd->bi_dram[0].size	 = 0x01000000 << sdram_shift;
+
+	}
+#endif /* CM_SPD_DETECT */
+
+	return 0;
+}
+
+/* The Integrator/AP timer1 is clocked at 24MHz
+ * can be divided by 16 or 256
+ * and is a 16-bit counter
+ */
+/* U-Boot expects a 32 bit timer running at CONFIG_SYS_HZ*/
+static ulong timestamp;		/* U-Boot ticks since startup	      */
+static ulong total_count = 0;	/* Total timer count		      */
+static ulong lastdec;		/* Timer reading at last call	      */
+static ulong div_clock	 = 256; /* Divisor applied to the timer clock */
+static ulong div_timer	 = 1;	/* Divisor to convert timer reading
+				 * change to U-Boot ticks
+				 */
+/* CONFIG_SYS_HZ = CONFIG_SYS_HZ_CLOCK/(div_clock * div_timer) */
+
+#define TIMER_LOAD_VAL 0x0000FFFFL
+#define READ_TIMER ((*(volatile ulong *)(CONFIG_SYS_TIMERBASE+4)) & 0x0000FFFFL)
+
+/* all function return values in U-Boot ticks i.e. (1/CONFIG_SYS_HZ) sec
+ *  - unless otherwise stated
+ */
+
+/* starts a counter
+ * - the Integrator/AP timer issues an interrupt
+ *   each time it reaches zero
+ */
+int timer_init (void)
+{
+	/* Load timer with initial value */
+	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0) = TIMER_LOAD_VAL;
+	/* Set timer to be
+	 *	enabled		  1
+	 *	free-running	  0
+	 *	XX		 00
+	 *	divider 256	 10
+	 *	XX		 00
+	 */
+	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 8) = 0x00000088;
+	total_count = 0;
+	/* init the timestamp and lastdec value */
+	reset_timer_masked();
+
+	div_timer  = CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ;
+	div_timer /= div_clock;
+
+	return (0);
+}
+
+/*
+ * timer without interrupts
+ */
+void reset_timer (void)
+{
+	reset_timer_masked ();
+}
+
+ulong get_timer (ulong base_ticks)
+{
+	return get_timer_masked () - base_ticks;
+}
+
+void set_timer (ulong ticks)
+{
+	timestamp = ticks;
+	total_count = ticks * div_timer;
+	reset_timer_masked();
+}
+
+/* delay x useconds */
+void udelay (unsigned long usec)
+{
+	ulong tmo, tmp;
+
+	/* Convert to U-Boot ticks */
+	tmo  = usec * CONFIG_SYS_HZ;
+	tmo /= (1000000L);
+
+	tmp  = get_timer_masked();	/* get current timestamp */
+	tmo += tmp;			/* wake up timestamp	 */
+
+	while (get_timer_masked () < tmo) { /* loop till event */
+		/*NOP*/;
+	}
+}
+
+void reset_timer_masked (void)
+{
+	/* reset time */
+	lastdec	  = READ_TIMER; /* capture current decrementer value   */
+	timestamp = 0;		/* start "advancing" time stamp from 0 */
+}
+
+/* converts the timer reading to U-Boot ticks	       */
+/* the timestamp is the number of ticks since reset    */
+/* This routine does not detect wraps unless called regularly
+   ASSUMES a call at least every 16 seconds to detect every reload */
+ulong get_timer_masked (void)
+{
+	ulong now = READ_TIMER;		/* current count */
+
+	if (now > lastdec) {
+		/* Must have wrapped */
+		total_count += lastdec + TIMER_LOAD_VAL + 1 - now;
+	} else {
+		total_count += lastdec - now;
+	}
+	lastdec	  = now;
+	timestamp = total_count/div_timer;
+
+	return timestamp;
+}
+
+/* waits specified delay value and resets timestamp */
+void udelay_masked (unsigned long usec)
+{
+	udelay(usec);
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On ARM it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+	return get_timer(0);
+}
+
+/*
+ * Return the timebase clock frequency
+ * i.e. how often the timer decrements
+ */
+ulong get_tbclk (void)
+{
+	return CONFIG_SYS_HZ_CLOCK/div_clock;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
diff --git a/board/armltd/integratorap/integratorap.c b/board/armltd/integratorap/pci.c
similarity index 69%
rename from board/armltd/integratorap/integratorap.c
rename to board/armltd/integratorap/pci.c
index 5ececd6..6ee2a85 100644
--- a/board/armltd/integratorap/integratorap.c
+++ b/board/armltd/integratorap/pci.c
@@ -34,77 +34,13 @@
  */
 
 #include <common.h>
-
-#ifdef CONFIG_PCI
 #include <pci.h>
-#endif
-
-#include <netdev.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void flash__init (void);
-void ether__init (void);
-void peripheral_power_enable (void);
-
-#if defined(CONFIG_SHOW_BOOT_PROGRESS)
-void show_boot_progress(int progress)
-{
-	printf("Boot reached stage %d\n", progress);
-}
-#endif
-
-#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
-
-static inline void delay (unsigned long loops)
-{
-	__asm__ volatile ("1:\n"
-		"subs %0, %1, #1\n"
-		"bne 1b":"=r" (loops):"0" (loops));
-}
-
-/*
- * Miscellaneous platform dependent initialisations
- */
-
-int board_init (void)
-{
-	/* arch number of Integrator Board */
-	gd->bd->bi_arch_number = MACH_TYPE_INTEGRATOR;
-
-	/* adress of boot parameters */
-	gd->bd->bi_boot_params = 0x00000100;
-
-	gd->flags = 0;
-
-#ifdef CONFIG_CM_REMAP
-extern void cm_remap(void);
-	cm_remap();	/* remaps writeable memory to 0x00000000 */
-#endif
-
-	icache_enable ();
-
-	flash__init ();
-	return 0;
-}
-
-
-int misc_init_r (void)
-{
-#ifdef CONFIG_PCI
-	pci_init();
-#endif
-	setenv("verify", "n");
-	return (0);
-}
 
 /*
  * Initialize PCI Devices, report devices found.
  */
-#ifdef CONFIG_PCI
 
 #ifndef CONFIG_PCI_PNP
-
 static struct pci_config_table pci_integrator_config_table[] = {
 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
 	  pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
@@ -112,7 +48,7 @@ static struct pci_config_table pci_integrator_config_table[] = {
 				       PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
 	{ }
 };
-#endif
+#endif /* CONFIG_PCI_PNP */
 
 /* V3 access routines */
 #define _V3Write16(o,v) (*(volatile unsigned short *)(PCI_V3_BASE + (unsigned int)(o)) = (unsigned short)(v))
@@ -458,199 +394,3 @@ void pci_init_board (void)
 
 	hose->last_busno = pci_hose_scan (hose);
 }
-#endif
-
-/******************************
- Routine:
- Description:
-******************************/
-void flash__init (void)
-{
-}
-/*************************************************************
- Routine:ether__init
- Description: take the Ethernet controller out of reset and wait
-			   for the EEPROM load to complete.
-*************************************************************/
-void ether__init (void)
-{
-}
-
-/******************************
- 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;
-
-#ifdef CONFIG_CM_SPD_DETECT
-	{
-extern void dram_query(void);
-	unsigned long cm_reg_sdram;
-	unsigned long sdram_shift;
-
-	dram_query();	/* Assembler accesses to CM registers */
-			/* Queries the SPD values	      */
-
-	/* Obtain the SDRAM size from the CM SDRAM register */
-
-	cm_reg_sdram = *(volatile ulong *)(CM_BASE + OS_SDRAM);
-	/*   Register	      SDRAM size
-	 *
-	 *   0xXXXXXXbbb000bb	 16 MB
-	 *   0xXXXXXXbbb001bb	 32 MB
-	 *   0xXXXXXXbbb010bb	 64 MB
-	 *   0xXXXXXXbbb011bb	128 MB
-	 *   0xXXXXXXbbb100bb	256 MB
-	 *
-	 */
-	sdram_shift		 = ((cm_reg_sdram & 0x0000001C)/4)%4;
-	gd->bd->bi_dram[0].size	 = 0x01000000 << sdram_shift;
-
-	}
-#endif /* CM_SPD_DETECT */
-
-	return 0;
-}
-
-/* The Integrator/AP timer1 is clocked at 24MHz
- * can be divided by 16 or 256
- * and is a 16-bit counter
- */
-/* U-Boot expects a 32 bit timer running at CONFIG_SYS_HZ*/
-static ulong timestamp;		/* U-Boot ticks since startup	      */
-static ulong total_count = 0;	/* Total timer count		      */
-static ulong lastdec;		/* Timer reading at last call	      */
-static ulong div_clock	 = 256; /* Divisor applied to the timer clock */
-static ulong div_timer	 = 1;	/* Divisor to convert timer reading
-				 * change to U-Boot ticks
-				 */
-/* CONFIG_SYS_HZ = CONFIG_SYS_HZ_CLOCK/(div_clock * div_timer) */
-
-#define TIMER_LOAD_VAL 0x0000FFFFL
-#define READ_TIMER ((*(volatile ulong *)(CONFIG_SYS_TIMERBASE+4)) & 0x0000FFFFL)
-
-/* all function return values in U-Boot ticks i.e. (1/CONFIG_SYS_HZ) sec
- *  - unless otherwise stated
- */
-
-/* starts a counter
- * - the Integrator/AP timer issues an interrupt
- *   each time it reaches zero
- */
-int timer_init (void)
-{
-	/* Load timer with initial value */
-	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0) = TIMER_LOAD_VAL;
-	/* Set timer to be
-	 *	enabled		  1
-	 *	free-running	  0
-	 *	XX		 00
-	 *	divider 256	 10
-	 *	XX		 00
-	 */
-	*(volatile ulong *)(CONFIG_SYS_TIMERBASE + 8) = 0x00000088;
-	total_count = 0;
-	/* init the timestamp and lastdec value */
-	reset_timer_masked();
-
-	div_timer  = CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ;
-	div_timer /= div_clock;
-
-	return (0);
-}
-
-/*
- * timer without interrupts
- */
-void reset_timer (void)
-{
-	reset_timer_masked ();
-}
-
-ulong get_timer (ulong base_ticks)
-{
-	return get_timer_masked () - base_ticks;
-}
-
-void set_timer (ulong ticks)
-{
-	timestamp = ticks;
-	total_count = ticks * div_timer;
-	reset_timer_masked();
-}
-
-/* delay x useconds */
-void udelay (unsigned long usec)
-{
-	ulong tmo, tmp;
-
-	/* Convert to U-Boot ticks */
-	tmo  = usec * CONFIG_SYS_HZ;
-	tmo /= (1000000L);
-
-	tmp  = get_timer_masked();	/* get current timestamp */
-	tmo += tmp;			/* wake up timestamp	 */
-
-	while (get_timer_masked () < tmo) { /* loop till event */
-		/*NOP*/;
-	}
-}
-
-void reset_timer_masked (void)
-{
-	/* reset time */
-	lastdec	  = READ_TIMER; /* capture current decrementer value   */
-	timestamp = 0;		/* start "advancing" time stamp from 0 */
-}
-
-/* converts the timer reading to U-Boot ticks	       */
-/* the timestamp is the number of ticks since reset    */
-/* This routine does not detect wraps unless called regularly
-   ASSUMES a call at least every 16 seconds to detect every reload */
-ulong get_timer_masked (void)
-{
-	ulong now = READ_TIMER;		/* current count */
-
-	if (now > lastdec) {
-		/* Must have wrapped */
-		total_count += lastdec + TIMER_LOAD_VAL + 1 - now;
-	} else {
-		total_count += lastdec - now;
-	}
-	lastdec	  = now;
-	timestamp = total_count/div_timer;
-
-	return timestamp;
-}
-
-/* waits specified delay value and resets timestamp */
-void udelay_masked (unsigned long usec)
-{
-	udelay(usec);
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
-	return get_timer(0);
-}
-
-/*
- * Return the timebase clock frequency
- * i.e. how often the timer decrements
- */
-ulong get_tbclk (void)
-{
-	return CONFIG_SYS_HZ_CLOCK/div_clock;
-}
-
-int board_eth_init(bd_t *bis)
-{
-	return pci_eth_init(bis);
-}
-- 
1.6.1.3



More information about the U-Boot mailing list