ecos-v3_0-branch: packages/hal/mips/atlas/current/src/platform.S annotate

annotate packages/hal/mips/atlas/current/src/platform.S @ 2729:74dbf4c3f2e1 after-copyright-change-20090129

Update all copyright banners to reflect FSF ownership; fix and improve licence text.

author	jlarmour
date	Thu, 29 Jan 2009 17:47:46 +0000
parents	d2c90368aeef
children

rev	line source
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	1 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	2 #=============================================================================
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	3 ## platform.S
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	4 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	5 ## MIPS Atlas platform code
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	6 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	7 ##=============================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	8 ## ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	9 ## -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	10 ## This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	11 ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	12 ##
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	13 ## eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	14 ## the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	15 ## Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	16 ## version.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	17 ##
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	18 ## eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	19 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	20 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	21 ## for more details.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	22 ##
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	23 ## You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	24 ## along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	25 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	26 ##
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	27 ## As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	28 ## macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	29 ## and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	30 ## this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	31 ## the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	32 ## must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	33 ## General Public License v2.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	34 ##
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	35 ## This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	36 ## on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	37 ## -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 210 diff changeset	38 ## ####ECOSGPLCOPYRIGHTEND####
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	39 ##=============================================================================
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	40 #######DESCRIPTIONBEGIN####
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	41 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	42 ## Author(s): dmoseley
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	43 ## Contributors: dmoseley
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	44 ## Date: 2000-06-06
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	45 ## Purpose: MIPS Atlas platform code
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	46 ## Description: Platform specific code for Atlas board.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	47 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	48 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	49 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	50 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	51 ######DESCRIPTIONEND####
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	52 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	53 ##=============================================================================
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	54
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	55 #include <pkgconf/system.h>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	56 #include <pkgconf/hal.h>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	57
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	58 #ifdef CYGPKG_KERNEL
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	59 # include <pkgconf/kernel.h>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	60 #endif
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	61
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	62 #include <cyg/hal/arch.inc>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	63 #include <cyg/hal/plf_io.h>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	64 #include <cyg/hal/hal_arch.h>
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	65
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	66 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	67
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	68 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	69 # Platform Initialization.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	70 # This code performs platform specific initialization.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	71
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	72 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	73 ## MEMC initialization.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	74 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	75
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	76 #if defined(CYG_HAL_STARTUP_ROM) \|\| defined(CYG_HAL_STARTUP_ROMRAM)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	77
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	78 .text
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	79 .set noreorder
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	80
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	81
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	82 .macro MASK_WRITE_PCI_REG regnum, devnum, mask
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	83 .set noreorder
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	84 # First, read the appropriate register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	85 li t0, HAL_GALILEO_PCI0_CONFIG_ADDR_ConfigEn \| \regnum \| \devnum
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	86 sw t0, HAL_GALILEO_PCI0_CONFIG_ADDR_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	87 lw t1, HAL_GALILEO_PCI0_CONFIG_DATA_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	88
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	89 # Now, mask in the appropriate bits
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	90 li t2, \mask
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	91 or t1, t2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	92
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	93 # Write the updated value
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	94 li t0, HAL_GALILEO_PCI0_CONFIG_ADDR_ConfigEn \| \regnum \| \devnum
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	95 sw t0, HAL_GALILEO_PCI0_CONFIG_ADDR_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	96 sw t1, HAL_GALILEO_PCI0_CONFIG_DATA_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	97 .endm
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	98
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	99 .macro WRITE_PCI_REG regnum, devnum, base
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	100 .set noreorder
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	101 li t0, HAL_GALILEO_PCI0_CONFIG_ADDR_ConfigEn \| \regnum \| \devnum
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	102 li t1, \base
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	103 sw t0, HAL_GALILEO_PCI0_CONFIG_ADDR_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	104 sw t1, HAL_GALILEO_PCI0_CONFIG_DATA_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	105 .endm
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	106
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	107 #define NO_MASK 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	108 #define NO_ERROR_CHECK 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	109 #define ERROR_CHECK 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	110 .macro READ_SPD_VALUE func, mask, ret_reg, err_check
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	111 .set noreorder
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	112 jal read_spd_value
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	113 li a0, \func # delay slot
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	114 .if \err_check
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	115 beq v0, zero, error
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	116 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	117 .endif
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	118 move \ret_reg, v0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	119 .if \mask
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	120 and \ret_reg, \mask
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	121 .endif
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	122 .endm
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	123
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	124 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	125 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	126 ## Initialize the RAM.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	127 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	128 ## To do that, we need to first initialize the Galileo PCI stuff to gain access
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	129 ## to the SAA9730.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	130 ## From there, use the I2C bus of the SAA9730 to read the SPD SDRAM
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	131 ## config data. We then setup the Galileo SDRAM configuration
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	132 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	133 ## Returns
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	134 ## v0 = Error Code
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	135 ## v1 = SDRAM size
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	136 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	137 FUNC_START(hal_atlas_init_sdram)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	138
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	139 .set noreorder
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	140
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	141 # Save the return address
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	142 move s8, ra
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	143
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	144 # Setup the base address registers
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	145 li s7, CYGARC_UNCACHED_ADDRESS(HAL_GALILEO_REGISTER_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	146
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	147 # Setup the Galileo controller Endian configuration
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	148 li t0, (HAL_GALILEO_BYTE_SWAP)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	149 sw t0, HAL_GALILEO_PCI_INTERNAL_COMMAND_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	150
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	151 # Setup the PCI_0 Timeout and retry configuration
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	152 li t0, HAL_GALILEO_PCI0_TIMEOUT_RETRY_VALUE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	153 sw t0, HAL_GALILEO_PCI0_TIMEOUT_RETRY_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	154
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	155 # Setup Galileo as PCI Master
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	156 MASK_WRITE_PCI_REG HAL_GALILEO_PCI0_STATUS_COMMAND_REGNUM, HAL_ATLAS_NULL_DEVNUM, \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	157 (HAL_GALILEO_PCI0_CONFIG_MEMEn \| HAL_GALILEO_PCI0_CONFIG_MasEn \| HAL_GALILEO_PCI0_CONFIG_SErrEn)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	158
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	159 # Setup Galileo PCI latency timer
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	160 MASK_WRITE_PCI_REG HAL_GALILEO_PCI0_BIST_REGNUM, HAL_ATLAS_NULL_DEVNUM, \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	161 HAL_GALILEO_PCI0_LAT_TIMER_VAL
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	162
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	163 # Setup base address for SAA9730
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	164 WRITE_PCI_REG HAL_GALILEO_PCI0_SCS32_BASE_REGNUM, HAL_ATLAS_SAA9730_DEVNUM, \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	165 CYGARC_PHYSICAL_ADDRESS(HAL_GALILEO_PCI0_MEM0_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	166
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	167 # Setup SAA9730 command and status register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	168 MASK_WRITE_PCI_REG HAL_GALILEO_PCI0_STATUS_COMMAND_REGNUM, HAL_ATLAS_SAA9730_DEVNUM, \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	169 (HAL_GALILEO_PCI0_CONFIG_MEMEn \| HAL_GALILEO_PCI0_CONFIG_SErrEn)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	170
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	171 # Init the I2C controller
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	172 li t0, HAL_SAA9730_I2CSC_I2CCC_6400
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	173 li t1, CYGARC_UNCACHED_ADDRESS(HAL_GALILEO_PCI0_MEM0_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	174 sw t0, HAL_SAA9730_I2CSC_OFFSET(t1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	175
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	176 ##=====================================================================================
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	177 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	178 ## Read the SPD device parameters and determine memory size
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	179 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	180 READ_SPD_VALUE HAL_SPD_GET_NUM_ROW_BITS, 0xf, s0, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	181 READ_SPD_VALUE HAL_SPD_GET_NUM_COL_BITS, 0xf, s1, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	182 READ_SPD_VALUE HAL_SPD_GET_NUM_DEVICE_BANKS, NO_MASK, s2, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	183
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	184 READ_SPD_VALUE HAL_SPD_GET_SDRAM_WIDTH, 0x7f, s3, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	185 READ_SPD_VALUE HAL_SPD_GET_NUM_MODULE_BANKS, NO_MASK, s4, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	186 READ_SPD_VALUE HAL_SPD_GET_ROW_DENSITY, NO_MASK, s5, ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	187
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	188 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	189 # Determine Size
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	190 # SIZE = SDRAM_WIDTH * NUM_DEVICE_BANKS * 2 ^ (NUM_ROW_BITS + NUM_COL_BITS)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	191 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	192 addu t0, s0, s1 # t0 = (NUM_ROW_BITS + NUM_COL_BITS)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	193 li t1, 1 # t1 = 2 ^ 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	194 sll t1, t0 # t1 = 2 ^ (NUM_ROW_BITS + NUM_COL_BITS)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	195 multu s2, t1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	196 mflo s6 # s6 = NUM_DEVICE_BANKS * 2 ^ (NUM_ROW_BITS + NUM_COL_BITS)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	197 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	198 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	199 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	200 multu s6, s3
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	201 mflo s6 # s6 = SDRAM_WIDTH * NUM_DEVICE_BANKS * 2 ^ (NUM_ROW_BITS + NUM_COL_BITS)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	202 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	203 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	204 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	205
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	206 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	207 # Determine size of Bank 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	208 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	209 li s0, HAL_ATLAS_MAX_BANKSIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	210 0:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	211 and t1, s5, BIT7
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	212 bnez t1, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	213 sll s5, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	214 b 0b
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	215 srl s0, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	216 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	217
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	218 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	219 # Determine if Bank 1 exists
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	220 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	221 li t0, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	222 beq s4, t0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	223 move s1, zero
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	224 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	225 # Determine if Bank 1 is different than Bank 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	226 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	227 and t1, s5, 0xFF
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	228 beq t1, zero, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	229 move s1, s0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	230 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	231 # Determine size of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	232 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	233 li s1, HAL_ATLAS_MAX_BANKSIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	234 0:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	235 and t1, s5, BIT7
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	236 bnez t1, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	237 sll s5, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	238 b 0b
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	239 srl s1, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	240 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	241
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	242 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	243 # FIXME: We should probably do some validation on the various
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	244 # memory parameters here at some point.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	245 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	246
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	247 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	248 # Set the base SDRAM bank configuration value.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	249 # All other fields are zero, and the proper value is masked
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	250 # in when they are known
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	251 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	252 li s5, HAL_GALILEO_SDRAM_SRAS_TO_SCAS_DELAY_3C \| \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	253 HAL_GALILEO_SDRAM_WIDTH_64BIT \| \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	254 HAL_GALILEO_SDRAM_SRAS_PRECHARGE_3C
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	255
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	256 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	257 # Setup the CASLAT value.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	258 # Support only CASLAT = 2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	259 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	260 READ_SPD_VALUE HAL_SPD_GET_CAS_LAT, NO_MASK, v0, NO_ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	261 and t0, v0, 2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	262 beqz t0, error
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	263 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	264 ori s5, HAL_GALILEO_SDRAM_BANK0_CASLAT_2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	265
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	266 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	267 # Setup SDRAM device size
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	268 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	269 li t0, SZ_16M
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	270 beq s6, t0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	271 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	272 ori s5, HAL_GALILEO_SDRAM_BANK0_SZ_64M
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	273 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	274
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	275 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	276 # Setup burst length: Support only 8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	277 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	278 READ_SPD_VALUE HAL_SPD_GET_BURST_LENGTH, NO_MASK, v0, NO_ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	279 and t0, v0, 8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	280 beqz t0, error
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	281 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	282
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	283 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	284 # Setup Parity.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	285 # Only support Parity/Noparity. Don't support ECC.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	286 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	287 READ_SPD_VALUE HAL_SPD_GET_CONFIG_TYPE, NO_MASK, v0, NO_ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	288 li t0, HAL_SPD_CONFIG_TYPE_PARITY
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	289 beq t0, v0, 0f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	290 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	291 li t0, HAL_SPD_CONFIG_TYPE_ECC
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	292 beq t0, v0, error
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	293 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	294 b 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	295 li v1, 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	296 0:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	297 ori s5, HAL_GALILEO_SDRAM_BANK0_PARITY
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	298 li v1, 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	299 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	300
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	301 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	302 # Setup number of device banks
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	303 # Only support 2 or 4 banks
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	304 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	305 li t0, 2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	306 beq s2, t0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	307 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	308 li t0, 4
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	309 beq s2, t0, 0f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	310 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	311 b error
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	312 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	313 0:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	314 ori s5, HAL_GALILEO_SDRAM_NUM_BANKS_4
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	315 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	316
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	317 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	318 # Now actually store the bank config register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	319 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	320 sw s5, HAL_GALILEO_SDRAM_BANK0_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	321 sw s5, HAL_GALILEO_SDRAM_BANK2_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	322
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	323 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	324 # Setup the SDRAM configuration register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	325 # All other fields are zero, and the proper value is masked
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	326 # in when they are known
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	327 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	328 li s5, HAL_GALILEO_SDRAM_DUPLICATE_BANK_ADDR \| HAL_GALILEO_SDRAM_BANK_INTERLEAVE_DIS
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	329
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	330 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	331 # Setup the Refresh Rate
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	332 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	333 READ_SPD_VALUE HAL_SPD_GET_REFRESH_RATE, 0x7f, v0, NO_ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	334
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	335 li t0, HAL_SPD_REFRESH_RATE_125
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	336 beq t0, v0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	337 li t0, HAL_SPD_REFRESH_COUNTER_125
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	338
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	339 li t0, HAL_SPD_REFRESH_RATE_62_5
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	340 beq t0, v0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	341 li t0, HAL_SPD_REFRESH_COUNTER_62_5
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	342
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	343 li t0, HAL_SPD_REFRESH_RATE_31_3
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	344 beq t0, v0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	345 li t0, HAL_SPD_REFRESH_COUNTER_31_3
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	346
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	347 li t0, HAL_SPD_REFRESH_RATE_15_625
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	348 beq t0, v0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	349 li t0, HAL_SPD_REFRESH_COUNTER_15_625
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	350
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	351 li t0, HAL_SPD_REFRESH_RATE_7_8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	352 beq t0, v0, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	353 li t0, HAL_SPD_REFRESH_COUNTER_7_8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	354
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	355 # Unknown: assume 3.9 microseconds
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	356 li t0, HAL_SPD_REFRESH_COUNTER_3_9
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	357 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	358
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	359 or s5, t0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	360
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	361 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	362 # Setup RAM_WIDTH
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	363 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	364 beqz v1, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	365 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	366 READ_SPD_VALUE HAL_SPD_GET_ERROR_CHECK_WIDTH, 0x7f, v0, NO_ERROR_CHECK
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	367 beq v0, zero, 8f
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	368 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	369 ori s5, HAL_GALILEO_SDRAM_CFG_RAM_WIDTH
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	370 8:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	371
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	372 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	373 # Store the SDRAM configuration register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	374 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	375 sw s5, HAL_GALILEO_SDRAM_CONFIG_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	376
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	377 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	378 # Reset SAA9730 now that we are done with the I2C unit.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	379 # This allows the generic PCI library to start with a clean
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	380 # slate of devices on the PCI bus.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	381 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	382 li a0, CYGARC_UNCACHED_ADDRESS(HAL_GALILEO_PCI0_MEM0_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	383 li t0, HAL_SAA9730_SYSRESET_ALL
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	384 sw t0, HAL_SAA9730_SYSRESET_OFFSET(a0)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	385
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	386 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	387 # Change the Galileo Base address to HAL_ATLAS_CONTROLLER_BASE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	388 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	389 li t0, HAL_ATLAS_CONTROLLER_BASE_ISD_CONFIG
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	390 sw t0, HAL_GALILEO_INT_SPACE_DECODE_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	391 li s7, CYGARC_UNCACHED_ADDRESS(HAL_ATLAS_CONTROLLER_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	392
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	393 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	394 # Setup SDRAM Bank 0 Address Decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	395 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	396 li a0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_RAM_BASE) # Physical bottom of Bank 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	397 add a1, s0, a0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	398 subu a1, 1 # Physical top of Bank 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	399
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	400 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT # Setup SCS[1:0]
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	401 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT # First level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	402 sw t0, HAL_GALILEO_SCS10_LD_OFFSET(s7) # (ie Processor Decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	403 sw t1, HAL_GALILEO_SCS10_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	404
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	405 srl t0, a0, HAL_GALILEO_DEV_DECODE_SHIFT # Setup SCS0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	406 srl t1, a1, HAL_GALILEO_DEV_DECODE_SHIFT # Second level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	407 sw t0, HAL_GALILEO_SCS0_LD_OFFSET(s7) # (ie Device Sub-decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	408 sw t1, HAL_GALILEO_SCS0_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	409
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	410 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	411 # Setup SDRAM Bank 1 Address Decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	412 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	413 add a0, s0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_RAM_BASE) # Physical bottom of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	414 add a1, a0, s1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	415 subu a1, 1 # Physical top of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	416
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	417 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT # Setup SCS[3:2]
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	418 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT # First level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	419 sw t0, HAL_GALILEO_SCS32_LD_OFFSET(s7) # (ie Processor Decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	420 sw t1, HAL_GALILEO_SCS32_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	421
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	422 srl t0, a0, HAL_GALILEO_DEV_DECODE_SHIFT # Setup SCS2
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	423 srl t1, a1, HAL_GALILEO_DEV_DECODE_SHIFT # Second level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	424 sw t0, HAL_GALILEO_SCS2_LD_OFFSET(s7) # (ie Device Sub-decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	425 sw t1, HAL_GALILEO_SCS2_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	426
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	427 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	428 # Setup PCI windows
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	429 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	430 li a0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_PCI_MEM0_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	431 add a1, a0, HAL_ATLAS_PCI_MEM0_SIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	432 subu a1, 1 # Physical top of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	433 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	434 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	435 sw t0, HAL_GALILEO_PCIMEM0_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	436 sw t1, HAL_GALILEO_PCIMEM0_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	437
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	438 li a0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_PCI_MEM1_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	439 add a1, a0, HAL_ATLAS_PCI_MEM1_SIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	440 subu a1, 1 # Physical top of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	441 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	442 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	443 sw t0, HAL_GALILEO_PCIMEM1_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	444 sw t1, HAL_GALILEO_PCIMEM1_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	445
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	446 li a0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_PCI_IO_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	447 add a1, a0, HAL_ATLAS_PCI_IO_SIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	448 subu a1, 1 # Physical top of Bank 1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	449 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	450 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	451 sw t0, HAL_GALILEO_PCIIO_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	452 sw t1, HAL_GALILEO_PCIIO_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	453
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	454 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	455 # Setup FLASH Address Decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	456 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	457 li a0, CYGARC_PHYSICAL_ADDRESS(HAL_ATLAS_FLASH_BASE) # Physical bottom of Flash Bank
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	458 add a1, a0, HAL_ATLAS_FLASH_SIZE
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	459 subu a1, 1 # Physical top of Flash Bank
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	460
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	461 srl t0, a0, HAL_GALILEO_CPU_DECODE_SHIFT # Setup CS[2:0]
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	462 srl t1, a1, HAL_GALILEO_CPU_DECODE_SHIFT # First level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	463 sw t0, HAL_GALILEO_CS20_LD_OFFSET(s7) # (ie Processor Decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	464 sw t1, HAL_GALILEO_CS20_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	465
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	466 srl t0, a0, HAL_GALILEO_DEV_DECODE_SHIFT # Setup CS0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	467 srl t1, a1, HAL_GALILEO_DEV_DECODE_SHIFT # Second level decoding
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	468 sw t0, HAL_GALILEO_CS0_LD_OFFSET(s7) # (ie Device Sub-decode Region)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	469 sw t1, HAL_GALILEO_CS0_HD_OFFSET(s7) #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	470
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	471 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	472 # Now disable all unused decodes
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	473 # (SCS1, SCS3, PCI1xx, CS1, CS2)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	474 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	475 li t0, 0xffff
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	476 move t1, zero
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	477 sw t0, HAL_GALILEO_SCS1_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	478 sw t1, HAL_GALILEO_SCS1_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	479 sw t0, HAL_GALILEO_SCS3_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	480 sw t1, HAL_GALILEO_SCS3_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	481 sw t0, HAL_GALILEO_PCI1IO_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	482 sw t1, HAL_GALILEO_PCI1IO_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	483 sw t0, HAL_GALILEO_PCI1MEM0_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	484 sw t1, HAL_GALILEO_PCI1MEM0_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	485 sw t0, HAL_GALILEO_PCI1MEM1_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	486 sw t1, HAL_GALILEO_PCI1MEM1_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	487 sw t0, HAL_GALILEO_CS1_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	488 sw t1, HAL_GALILEO_CS1_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	489 sw t0, HAL_GALILEO_CS2_LD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	490 sw t1, HAL_GALILEO_CS2_HD_OFFSET(s7)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	491
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	492 noerror:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	493 move v0, zero
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	494 add v1, s0, s1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	495 move ra, s8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	496 jr ra
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	497 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	498
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	499 error:
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	500 li v0, HAL_ATLAS_MEMERROR
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	501 move ra, s8
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	502 jr ra
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	503 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	504
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	505 FUNC_END(hal_atlas_init_sdram)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	506
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	507 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	508 ## Read a value from the SDRAM SPD device.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	509 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	510 ## Parameters: a0 = subaddress
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	511 ## Returns: v0 = SPD value read
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	512 ##
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	513 FUNC_START(read_spd_value)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	514 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	515 # Setup a base address register
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	516 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	517 li a1, CYGARC_UNCACHED_ADDRESS(HAL_GALILEO_PCI0_MEM0_BASE)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	518
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	519 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	520 # Write the I2C command
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	521 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	522 sll a0, 16
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	523 li t0, (HAL_SAA9730_I2CTFR_ATTR1_CONT \| \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	524 ((0xa0 << 24) \| HAL_SAA9730_I2CTFR_ATTR2_START) \| \
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	525 ((0xa1 << 8) \| HAL_SAA9730_I2CTFR_ATTR0_START))
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	526 or a0, t0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	527 sw a0, HAL_SAA9730_I2CTFR_OFFSET(a1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	528 1: lw t0, HAL_SAA9730_I2CTFR_OFFSET(a1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	529 and t0, 0x1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	530 bnez t0, 1b
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	531 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	532
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	533 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	534 # Read the SPD value
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	535 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	536 li a0, HAL_SAA9730_I2CTFR_ATTR2_STOP
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	537 sw a0, HAL_SAA9730_I2CTFR_OFFSET(a1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	538 1: lw t0, HAL_SAA9730_I2CTFR_OFFSET(a1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	539 and t0, 0x1
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	540 bnez t0, 1b
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	541 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	542
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	543 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	544 # Setup the return value.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	545 #
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	546 lw v0, HAL_SAA9730_I2CTFR_OFFSET(a1)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	547 srl v0, 24
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	548
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	549 jr ra
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	550 nop
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	551 FUNC_END(read_spd_value)
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	552 #endif /* defined(CYG_HAL_STARTUP_ROM) \|\| defined(CYG_HAL_STARTUP_ROMRAM) */
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	553
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	554 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	555 # Interrupt vector tables.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	556 # These tables contain the isr, data and object pointers used to deliver
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	557 # interrupts to user code.
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	558
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	559 .extern hal_default_isr
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	560
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	561 .data
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	562
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	563 .globl hal_interrupt_handlers
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	564 hal_interrupt_handlers:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 156 diff changeset	565 .rept 25
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	566 .long hal_default_isr
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	567 .endr
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	568
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	569 .globl hal_interrupt_data
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	570 hal_interrupt_data:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 156 diff changeset	571 .rept 25
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	572 .long 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	573 .endr
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	574
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	575 .globl hal_interrupt_objects
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	576 hal_interrupt_objects:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 156 diff changeset	577 .rept 25
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	578 .long 0
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	579 .endr
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	580
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	581
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	582 ##-----------------------------------------------------------------------------
b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: diff changeset	583 ## end of platform.S

Mercurial > ecos-v3_0-branch

annotate packages/hal/mips/atlas/current/src/platform.S @ 2729:74dbf4c3f2e1 after-copyright-change-20090129