/* * (C) Copyright 2001 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. * * 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 * * modifications for the DB64460 eval board based by Ingo.Assmus@keymile.com *//* * db64460.c - main board support/init for the Galileo Eval board. */#include <common.h>#include <74xx_7xx.h>#include "../include/memory.h"#include "../include/pci.h"#include "../include/mv_gen_reg.h"#include <net.h>#include "eth.h"#include "mpsc.h"#include "i2c.h"#include "64460.h"#include "mv_regs.h"#undef	DEBUG/*#define	DEBUG */#define	MAP_PCI#ifdef DEBUG#define DP(x) x#else#define DP(x)#endifextern void flush_data_cache (void);extern void invalidate_l1_instruction_cache (void);/* ------------------------------------------------------------------------- *//* this is the current GT register space location *//* it starts at CFG_DFL_GT_REGS but moves later to CFG_GT_REGS *//* Unfortunately, we cant change it while we are in flash, so we initialize it * to the "final" value. This means that any debug_led calls before * board_early_init_f wont work right (like in cpu_init_f). * See also my_remap_gt_regs below. (NTL) */void board_prebootm_init (void);unsigned int INTERNAL_REG_BASE_ADDR = CFG_GT_REGS;int display_mem_map (void);/* ------------------------------------------------------------------------- *//* * This is a version of the GT register space remapping function that * doesn't touch globals (meaning, it's ok to run from flash.) * * Unfortunately, this has the side effect that a writable * INTERNAL_REG_BASE_ADDR is impossible. Oh well. */void my_remap_gt_regs (u32 cur_loc, u32 new_loc){	u32 temp;	/* check and see if it's already moved *//* original ppcboot 1.1.6 source	temp = in_le32((u32 *)(new_loc + INTERNAL_SPACE_DECODE));	if ((temp & 0xffff) == new_loc >> 20)		return;	temp = (in_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE)) &		0xffff0000) | (new_loc >> 20);	out_le32((u32 *)(cur_loc + INTERNAL_SPACE_DECODE), temp);	while (GTREGREAD(INTERNAL_SPACE_DECODE) != temp);original ppcboot 1.1.6 source end */	temp = in_le32 ((u32 *) (new_loc + INTERNAL_SPACE_DECODE));	if ((temp & 0xffff) == new_loc >> 16)		return;	temp = (in_le32 ((u32 *) (cur_loc + INTERNAL_SPACE_DECODE)) &		0xffff0000) | (new_loc >> 16);	out_le32 ((u32 *) (cur_loc + INTERNAL_SPACE_DECODE), temp);	while (GTREGREAD (INTERNAL_SPACE_DECODE) != temp);}#ifdef CONFIG_PCIstatic void gt_pci_config (void){	unsigned int stat;	unsigned int val = 0x00fff864;	/* DINK32: BusNum 23:16,  DevNum 15:11, FuncNum 10:8, RegNum 7:2 */	/* In PCIX mode devices provide their own bus and device numbers. We query the Discovery II's	 * config registers by writing ones to the bus and device.	 * We then update the Virtual register with the correct value for the bus and device.	 */	if ((GTREGREAD (PCI_0_MODE) & (BIT4 | BIT5)) != 0) {	/*if  PCI-X */		GT_REG_WRITE (PCI_0_CONFIG_ADDR, BIT31 | val);		GT_REG_READ (PCI_0_CONFIG_DATA_VIRTUAL_REG, &stat);		GT_REG_WRITE (PCI_0_CONFIG_ADDR, BIT31 | val);		GT_REG_WRITE (PCI_0_CONFIG_DATA_VIRTUAL_REG,			      (stat & 0xffff0000) | CFG_PCI_IDSEL);	}	if ((GTREGREAD (PCI_1_MODE) & (BIT4 | BIT5)) != 0) {	/*if  PCI-X */		GT_REG_WRITE (PCI_1_CONFIG_ADDR, BIT31 | val);		GT_REG_READ (PCI_1_CONFIG_DATA_VIRTUAL_REG, &stat);		GT_REG_WRITE (PCI_1_CONFIG_ADDR, BIT31 | val);		GT_REG_WRITE (PCI_1_CONFIG_DATA_VIRTUAL_REG,			      (stat & 0xffff0000) | CFG_PCI_IDSEL);	}	/* Enable master */	PCI_MASTER_ENABLE (0, SELF);	PCI_MASTER_ENABLE (1, SELF);	/* Enable PCI0/1 Mem0 and IO 0 disable all others */	GT_REG_READ (BASE_ADDR_ENABLE, &stat);	stat |= (1 << 11) | (1 << 12) | (1 << 13) | (1 << 16) | (1 << 17) | (1									     <<									     18);	stat &= ~((1 << 9) | (1 << 10) | (1 << 14) | (1 << 15));	GT_REG_WRITE (BASE_ADDR_ENABLE, stat);	/* ronen- add write to pci remap registers for 64460.	   in 64360 when writing to pci base go and overide remap automaticaly,	   in 64460 it doesn't */	GT_REG_WRITE (PCI_0_IO_BASE_ADDR, CFG_PCI0_IO_BASE >> 16);	GT_REG_WRITE (PCI_0I_O_ADDRESS_REMAP, CFG_PCI0_IO_BASE >> 16);	GT_REG_WRITE (PCI_0_IO_SIZE, (CFG_PCI0_IO_SIZE - 1) >> 16);	GT_REG_WRITE (PCI_0_MEMORY0_BASE_ADDR, CFG_PCI0_MEM_BASE >> 16);	GT_REG_WRITE (PCI_0MEMORY0_ADDRESS_REMAP, CFG_PCI0_MEM_BASE >> 16);	GT_REG_WRITE (PCI_0_MEMORY0_SIZE, (CFG_PCI0_MEM_SIZE - 1) >> 16);	GT_REG_WRITE (PCI_1_IO_BASE_ADDR, CFG_PCI1_IO_BASE >> 16);	GT_REG_WRITE (PCI_1I_O_ADDRESS_REMAP, CFG_PCI1_IO_BASE >> 16);	GT_REG_WRITE (PCI_1_IO_SIZE, (CFG_PCI1_IO_SIZE - 1) >> 16);	GT_REG_WRITE (PCI_1_MEMORY0_BASE_ADDR, CFG_PCI1_MEM_BASE >> 16);	GT_REG_WRITE (PCI_1MEMORY0_ADDRESS_REMAP, CFG_PCI1_MEM_BASE >> 16);	GT_REG_WRITE (PCI_1_MEMORY0_SIZE, (CFG_PCI1_MEM_SIZE - 1) >> 16);	/* PCI interface settings */	/* Timeout set to retry forever */	GT_REG_WRITE (PCI_0TIMEOUT_RETRY, 0x0);	GT_REG_WRITE (PCI_1TIMEOUT_RETRY, 0x0);	/* ronen - enable only CS0 and Internal reg!! */	GT_REG_WRITE (PCI_0BASE_ADDRESS_REGISTERS_ENABLE, 0xfffffdfe);	GT_REG_WRITE (PCI_1BASE_ADDRESS_REGISTERS_ENABLE, 0xfffffdfe);/*ronen update the pci internal registers base address.*/#ifdef MAP_PCI	for (stat = 0; stat <= PCI_HOST1; stat++)		pciWriteConfigReg (stat,				   PCI_INTERNAL_REGISTERS_MEMORY_MAPPED_BASE_ADDRESS,				   SELF, CFG_GT_REGS);#endif}#endif/* Setup CPU interface paramaters */static void gt_cpu_config (void){	cpu_t cpu = get_cpu_type ();	ulong tmp;	/* cpu configuration register */	tmp = GTREGREAD (CPU_CONFIGURATION);	/* set the SINGLE_CPU bit  see MV64460 P.399 */#ifndef CFG_GT_DUAL_CPU		/* SINGLE_CPU seems to cause JTAG problems */	tmp |= CPU_CONF_SINGLE_CPU;#endif	tmp &= ~CPU_CONF_AACK_DELAY_2;	tmp |= CPU_CONF_DP_VALID;	tmp |= CPU_CONF_AP_VALID;	tmp |= CPU_CONF_PIPELINE;	GT_REG_WRITE (CPU_CONFIGURATION, tmp);	/* Marvell (VXWorks) writes 0x20220FF */	/* CPU master control register */	tmp = GTREGREAD (CPU_MASTER_CONTROL);	tmp |= CPU_MAST_CTL_ARB_EN;	if ((cpu == CPU_7400) ||	    (cpu == CPU_7410) || (cpu == CPU_7455) || (cpu == CPU_7450)) {		tmp |= CPU_MAST_CTL_CLEAN_BLK;		tmp |= CPU_MAST_CTL_FLUSH_BLK;	} else {		/* cleanblock must be cleared for CPUs		 * that do not support this command (603e, 750)		 * see Res#1 */		tmp &= ~CPU_MAST_CTL_CLEAN_BLK;		tmp &= ~CPU_MAST_CTL_FLUSH_BLK;	}	GT_REG_WRITE (CPU_MASTER_CONTROL, tmp);}/* * board_early_init_f. * * set up gal. device mappings, etc. */int board_early_init_f (void){	uchar sram_boot = 0;	/*	 * set up the GT the way the kernel wants it	 * the call to move the GT register space will obviously	 * fail if it has already been done, but we're going to assume	 * that if it's not at the power-on location, it's where we put	 * it last time. (huber)	 */	my_remap_gt_regs (CFG_DFL_GT_REGS, CFG_GT_REGS);	/* No PCI in first release of Port To_do: enable it. */#ifdef CONFIG_PCI	gt_pci_config ();#endif	/* mask all external interrupt sources */	GT_REG_WRITE (CPU_INTERRUPT_MASK_REGISTER_LOW, 0);	GT_REG_WRITE (CPU_INTERRUPT_MASK_REGISTER_HIGH, 0);	/* new in MV6446x */	GT_REG_WRITE (CPU_INTERRUPT_1_MASK_REGISTER_LOW, 0);	GT_REG_WRITE (CPU_INTERRUPT_1_MASK_REGISTER_HIGH, 0);	/* --------------------- */	GT_REG_WRITE (PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);	GT_REG_WRITE (PCI_0INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);	GT_REG_WRITE (PCI_1INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0);	GT_REG_WRITE (PCI_1INTERRUPT_CAUSE_MASK_REGISTER_HIGH, 0);	/* does not exist in MV6446x	   GT_REG_WRITE(CPU_INT_0_MASK, 0);	   GT_REG_WRITE(CPU_INT_1_MASK, 0);	   GT_REG_WRITE(CPU_INT_2_MASK, 0);	   GT_REG_WRITE(CPU_INT_3_MASK, 0);	   --------------------- */	/* ----- DEVICE BUS SETTINGS ------ */	/*	 * EVB	 * 0 - SRAM   ????	 * 1 - RTC      ????	 * 2 - UART     ????	 * 3 - Flash    checked 32Bit Intel Strata	 * boot - BootCS checked 8Bit 29LV040B	 *	 * Zuma	 * 0 - Flash	 * boot - BootCS	 */	/*	 * the dual 7450 module requires burst access to the boot	 * device, so the serial rom copies the boot device to the	 * on-board sram on the eval board, and updates the correct	 * registers to boot from the sram. (device0)	 */	if (memoryGetDeviceBaseAddress (DEVICE0) == CFG_DFL_BOOTCS_BASE)		sram_boot = 1;	if (!sram_boot)		memoryMapDeviceSpace (DEVICE0, CFG_DEV0_SPACE, CFG_DEV0_SIZE);	memoryMapDeviceSpace (DEVICE1, CFG_DEV1_SPACE, CFG_DEV1_SIZE);	memoryMapDeviceSpace (DEVICE2, CFG_DEV2_SPACE, CFG_DEV2_SIZE);	memoryMapDeviceSpace (DEVICE3, CFG_DEV3_SPACE, CFG_DEV3_SIZE);	/* configure device timing */#ifdef CFG_DEV0_PAR		/* set port parameters for SRAM device module access */	if (!sram_boot)		GT_REG_WRITE (DEVICE_BANK0PARAMETERS, CFG_DEV0_PAR);#endif#ifdef CFG_DEV1_PAR		/* set port parameters for RTC device module access */	GT_REG_WRITE (DEVICE_BANK1PARAMETERS, CFG_DEV1_PAR);#endif#ifdef CFG_DEV2_PAR		/* set port parameters for DUART device module access */	GT_REG_WRITE (DEVICE_BANK2PARAMETERS, CFG_DEV2_PAR);#endif#ifdef CFG_32BIT_BOOT_PAR	/* set port parameters for Flash device module access */	/* detect if we are booting from the 32 bit flash */	if (GTREGREAD (DEVICE_BOOT_BANK_PARAMETERS) & (0x3 << 20)) {		/* 32 bit boot flash */		GT_REG_WRITE (DEVICE_BANK3PARAMETERS, CFG_8BIT_BOOT_PAR);		GT_REG_WRITE (DEVICE_BOOT_BANK_PARAMETERS,			      CFG_32BIT_BOOT_PAR);	} else {		/* 8 bit boot flash */		GT_REG_WRITE (DEVICE_BANK3PARAMETERS, CFG_32BIT_BOOT_PAR);		GT_REG_WRITE (DEVICE_BOOT_BANK_PARAMETERS, CFG_8BIT_BOOT_PAR);	}#else	/* 8 bit boot flash only *//*	GT_REG_WRITE(DEVICE_BOOT_BANK_PARAMETERS, CFG_8BIT_BOOT_PAR);*/#endif	gt_cpu_config ();	/* MPP setup */	GT_REG_WRITE (MPP_CONTROL0, CFG_MPP_CONTROL_0);	GT_REG_WRITE (MPP_CONTROL1, CFG_MPP_CONTROL_1);	GT_REG_WRITE (MPP_CONTROL2, CFG_MPP_CONTROL_2);	GT_REG_WRITE (MPP_CONTROL3, CFG_MPP_CONTROL_3);	GT_REG_WRITE (GPP_LEVEL_CONTROL, CFG_GPP_LEVEL_CONTROL);	DEBUG_LED0_ON ();	DEBUG_LED1_ON ();	DEBUG_LED2_ON ();	return 0;}/* various things to do after relocation */int misc_init_r (){	icache_enable ();#ifdef CFG_L2	l2cache_enable ();#endif#ifdef CONFIG_MPSC	mpsc_sdma_init ();	mpsc_init2 ();#endif#if 0	/* disable the dcache and MMU */	dcache_lock ();#endif	return 0;}void after_reloc (ulong dest_addr, gd_t * gd){	/* check to see if we booted from the sram.  If so, move things	 * back to the way they should be. (we're running from main	 * memory at this point now */	if (memoryGetDeviceBaseAddress (DEVICE0) == CFG_DFL_BOOTCS_BASE) {		memoryMapDeviceSpace (DEVICE0, CFG_DEV0_SPACE, CFG_DEV0_SIZE);		memoryMapDeviceSpace (BOOT_DEVICE, CFG_DFL_BOOTCS_BASE, _8M);	}	display_mem_map ();	/* now, jump to the main ppcboot board init code */	board_init_r (gd, dest_addr);	/* NOTREACHED */}/* ------------------------------------------------------------------------- *//* * Check Board Identity: * * right now, assume borad type. (there is just one...after all) */int checkboard (void){	int l_type = 0;	printf ("BOARD: %s\n", CFG_BOARD_NAME);	return (l_type);}/* utility functions */void debug_led (int led, int mode){	volatile int *addr = 0;	int dummy;	if (mode == 1) {		switch (led) {		case 0:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x08000);			break;		case 1:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x0c000);			break;		case 2:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x10000);			break;		}	} else if (mode == 0) {		switch (led) {		case 0:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x14000);			break;		case 1:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x18000);			break;		case 2:			addr = (int *) ((unsigned int) CFG_DEV1_SPACE |					0x1c000);			break;		}	}	dummy = *addr;}int display_mem_map (void){	int i, j;	unsigned int base, size, width;	/* SDRAM */	printf ("SD (DDR) RAM\n");	for (i = 0; i <= BANK3; i++) {		base = memoryGetBankBaseAddress (i);		size = memoryGetBankSize (i);		if (size != 0) {			printf ("BANK%d: base - 0x%08x\tsize - %dM bytes\n",				i, base, size >> 20);		}