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Add a directory by kernel instead of a common root, add qnap-301w and rpi4 kernel 6.1 suppport

This commit is contained in:
Ycarus (Yannick Chabanois) 2023-04-22 08:07:24 +02:00
parent e910436a7a
commit 46837ec4c0
9459 changed files with 362648 additions and 116345 deletions

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#
# (C) Copyright 2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# Copyright 2004 Picture Elements, Inc.
# Stephen Williams <steve@icarus.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
COBJS = $(BOARD).o sdram.o flash.o host_bridge.o
SOBJS = init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(OBJS) $(SOBJS)
$(call cmd_link_o_target, $(OBJS) $(SOBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

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JSE Configuration Details
Memory Bank 0 -- Flash chip
---------------------------
0xfff00000 - 0xffffffff
The flash chip is really only 512Kbytes, but the high address bit of
the 1Meg region is ignored, so the flash is replicated through the
region. Thus, this is consistent with a flash base address 0xfff80000.
The placement at the end is to be consistent with reset behavior,
where the processor itself initially uses this bus to load the branch
vector and start running.
On-Chip Memory
--------------
0xf4000000 - 0xf4000fff
The 405GPr includes a 4K on-chip memory that can be placed however
software chooses. I choose to place the memory at this address, to
keep it out of the cachable areas.
Memory Bank 1 -- SystemACE Controller
-------------------------------------
0xf0000000 - 0xf00fffff
The SystemACE chip is along on peripheral bank CS#1. We don't need
much space, but 1Meg is the smallest we can configure the chip to
allocate. We need it far away from the flash region, because this
region is set to be non-cached.
Internal Peripherals
--------------------
0xef600300 - 0xef6008ff
These are scattered various peripherals internal to the PPC405GPr
chip.
SDRAM
-----
0x00000000 - 0x07ffffff (128 MBytes)

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/*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Modified 4/5/2001
* Wait for completion of each sector erase command issued
* 4/5/2001
* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
*/
#include <common.h>
#include <asm/ppc4xx.h>
#include <asm/processor.h>
#if CONFIG_SYS_MAX_FLASH_BANKS != 1
#error "CONFIG_SYS_MAX_FLASH_BANKS must be 1"
#endif
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*-----------------------------------------------------------------------
* Functions
*/
static ulong flash_get_size (vu_long * addr, flash_info_t * info);
static int write_word (flash_info_t * info, ulong dest, ulong data);
static void flash_get_offsets (ulong base, flash_info_t * info);
#define ADDR0 0x5555
#define ADDR1 0x2aaa
#define FLASH_WORD_SIZE unsigned char
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
unsigned long size_b0;
/* Init: no FLASHes known */
flash_info[0].flash_id = FLASH_UNKNOWN;
/* Static FLASH Bank configuration here - FIXME XXX */
size_b0 = flash_get_size ((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
size_b0, size_b0 << 20);
}
/* Only one bank */
/* Setup offsets */
flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
/* Monitor protection ON by default */
(void) flash_protect (FLAG_PROTECT_SET,
FLASH_BASE0_PRELIM,
FLASH_BASE0_PRELIM + monitor_flash_len - 1,
&flash_info[0]);
flash_info[0].size = size_b0;
return size_b0;
}
/*-----------------------------------------------------------------------
*/
/*
* This implementation assumes that the flash chips are uniform sector
* devices. This is true for all likely JSE devices.
*/
static void flash_get_offsets (ulong base, flash_info_t * info)
{
unsigned idx;
unsigned long sector_size = info->size / info->sector_count;
for (idx = 0; idx < info->sector_count; idx += 1) {
info->start[idx] = base + (idx * sector_size);
}
}
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t * info)
{
int i;
int k;
int size;
int erased;
volatile unsigned long *flash;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
return;
}
switch (info->flash_id & FLASH_VENDMASK) {
case FLASH_MAN_AMD:
printf ("AMD ");
break;
case FLASH_MAN_FUJ:
printf ("FUJITSU ");
break;
case FLASH_MAN_SST:
printf ("SST ");
break;
case FLASH_MAN_STM:
printf ("ST Micro ");
break;
default:
printf ("Unknown Vendor ");
break;
}
/* (Reduced table of only parts expected in JSE boards.) */
switch (info->flash_id) {
case FLASH_MAN_AMD | FLASH_AM040:
printf ("AM29F040 (512 Kbit, uniform sector size)\n");
break;
case FLASH_MAN_STM | FLASH_AM040:
printf ("MM29W040W (512 Kbit, uniform sector size)\n");
break;
default:
printf ("Unknown Chip Type\n");
break;
}
printf (" Size: %ld KB in %d Sectors\n",
info->size >> 10, info->sector_count);
printf (" Sector Start Addresses:");
for (i = 0; i < info->sector_count; ++i) {
/*
* Check if whole sector is erased
*/
if (i != (info->sector_count - 1))
size = info->start[i + 1] - info->start[i];
else
size = info->start[0] + info->size - info->start[i];
erased = 1;
flash = (volatile unsigned long *) info->start[i];
size = size >> 2; /* divide by 4 for longword access */
for (k = 0; k < size; k++) {
if (*flash++ != 0xffffffff) {
erased = 0;
break;
}
}
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s%s",
info->start[i],
erased ? " E" : " ", info->protect[i] ? "RO " : " "
);
}
printf ("\n");
return;
}
/*-----------------------------------------------------------------------
*/
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
static ulong flash_get_size (vu_long * addr, flash_info_t * info)
{
short i;
FLASH_WORD_SIZE value;
ulong base = (ulong) addr;
volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr;
/* Write auto select command: read Manufacturer ID */
addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00900090;
value = addr2[0];
switch (value) {
case (FLASH_WORD_SIZE) AMD_MANUFACT:
info->flash_id = FLASH_MAN_AMD;
break;
case (FLASH_WORD_SIZE) FUJ_MANUFACT:
info->flash_id = FLASH_MAN_FUJ;
break;
case (FLASH_WORD_SIZE) SST_MANUFACT:
info->flash_id = FLASH_MAN_SST;
break;
case (FLASH_WORD_SIZE)STM_MANUFACT:
info->flash_id = FLASH_MAN_STM;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
printf("Unknown flash manufacturer code: 0x%x\n", value);
return (0); /* no or unknown flash */
}
value = addr2[1]; /* device ID */
switch (value) {
case (FLASH_WORD_SIZE) AMD_ID_F040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 ko */
break;
case (FLASH_WORD_SIZE) AMD_ID_LV040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 ko */
break;
case (FLASH_WORD_SIZE)STM_ID_M29W040B: /* most likele JSE chip */
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 ko */
break;
default:
info->flash_id = FLASH_UNKNOWN;
return (0); /* => no or unknown flash */
}
/* Calculate the sector offsets (Use JSE Optimized code). */
flash_get_offsets(base, info);
/* check for protected sectors */
for (i = 0; i < info->sector_count; i++) {
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
/* D0 = 1 if protected */
addr2 = (volatile FLASH_WORD_SIZE *) (info->start[i]);
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
info->protect[i] = 0;
else
info->protect[i] = addr2[2] & 1;
}
/*
* Prevent writes to uninitialized FLASH.
*/
if (info->flash_id != FLASH_UNKNOWN) {
addr2 = (FLASH_WORD_SIZE *) info->start[0];
*addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
}
return (info->size);
}
int wait_for_DQ7 (flash_info_t * info, int sect)
{
ulong start, now, last;
volatile FLASH_WORD_SIZE *addr =
(FLASH_WORD_SIZE *) (info->start[sect]);
start = get_timer (0);
last = start;
while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) !=
(FLASH_WORD_SIZE) 0x00800080) {
if ((now = get_timer (start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
return -1;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
putc ('.');
last = now;
}
}
return 0;
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]);
volatile FLASH_WORD_SIZE *addr2;
int flag, prot, sect;
int i;
if ((s_first < 0) || (s_first > s_last)) {
if (info->flash_id == FLASH_UNKNOWN) {
printf ("- missing\n");
} else {
printf ("- no sectors to erase\n");
}
return 1;
}
if (info->flash_id == FLASH_UNKNOWN) {
printf ("Can't erase unknown flash type - aborted\n");
return 1;
}
prot = 0;
for (sect = s_first; sect <= s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n", prot);
} else {
printf ("\n");
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts ();
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr2 = (FLASH_WORD_SIZE *) (info->start[sect]);
printf ("Erasing sector %p\n", addr2); /* CLH */
if ((info->flash_id & FLASH_VENDMASK) ==
FLASH_MAN_SST) {
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080;
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr2[0] = (FLASH_WORD_SIZE) 0x00500050; /* block erase */
for (i = 0; i < 50; i++)
udelay (1000); /* wait 1 ms */
} else {
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00800080;
addr[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr2[0] = (FLASH_WORD_SIZE) 0x00300030; /* sector erase */
}
/*
* Wait for each sector to complete, it's more
* reliable. According to AMD Spec, you must
* issue all erase commands within a specified
* timeout. This has been seen to fail, especially
* if printf()s are included (for debug)!!
*/
wait_for_DQ7 (info, sect);
}
}
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts ();
/* wait at least 80us - let's wait 1 ms */
udelay (1000);
/* reset to read mode */
addr = (FLASH_WORD_SIZE *) info->start[0];
addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
printf (" done\n");
return 0;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
ulong cp, wp, data;
int i, l, rc;
wp = (addr & ~3); /* get lower word aligned address */
/*
* handle unaligned start bytes
*/
if ((l = addr - wp) != 0) {
data = 0;
for (i = 0, cp = wp; i < l; ++i, ++cp) {
data = (data << 8) | (*(uchar *) cp);
}
for (; i < 4 && cnt > 0; ++i) {
data = (data << 8) | *src++;
--cnt;
++cp;
}
for (; cnt == 0 && i < 4; ++i, ++cp) {
data = (data << 8) | (*(uchar *) cp);
}
if ((rc = write_word (info, wp, data)) != 0) {
return (rc);
}
wp += 4;
}
/*
* handle word aligned part
*/
while (cnt >= 4) {
data = 0;
for (i = 0; i < 4; ++i) {
data = (data << 8) | *src++;
}
if ((rc = write_word (info, wp, data)) != 0) {
return (rc);
}
wp += 4;
cnt -= 4;
}
if (cnt == 0) {
return (0);
}
/*
* handle unaligned tail bytes
*/
data = 0;
for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
data = (data << 8) | *src++;
--cnt;
}
for (; i < 4; ++i, ++cp) {
data = (data << 8) | (*(uchar *) cp);
}
return (write_word (info, wp, data));
}
/*-----------------------------------------------------------------------
* Write a word to Flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_word (flash_info_t * info, ulong dest, ulong data)
{
volatile FLASH_WORD_SIZE *addr2 =
(FLASH_WORD_SIZE *) (info->start[0]);
volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *) dest;
volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data;
ulong start;
int i;
/* Check if Flash is (sufficiently) erased */
if ((*((volatile FLASH_WORD_SIZE *) dest) &
(FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) {
return (2);
}
for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) {
int flag;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts ();
addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00AA00AA;
addr2[ADDR1] = (FLASH_WORD_SIZE) 0x00550055;
addr2[ADDR0] = (FLASH_WORD_SIZE) 0x00A000A0;
dest2[i] = data2[i];
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts ();
/* data polling for D7 */
start = get_timer (0);
while ((dest2[i] & (FLASH_WORD_SIZE) 0x00800080) !=
(data2[i] & (FLASH_WORD_SIZE) 0x00800080)) {
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
return (1);
}
}
}
return (0);
}

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/*
* Copyright (c) 2004 Picture Elements, Inc.
* Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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
*/
#ident "$Id:$"
# include <common.h>
# include <pci.h>
# include "jse_priv.h"
/*
* The JSE board has an Intel 21555 non-transparent bridge for
* communication with the host. We need to render it harmless on the
* JSE side, but leave it alone on the host (primary) side. Normally,
* this will all be done before the host BIOS can gain access to the
* board, due to the Primary Access Lockout bit.
*
* The host_bridge_init function is called as a late initialization
* function, after most of the board is set up, including a PCI scan.
*/
void host_bridge_init (void)
{
/* The bridge chip is at a fixed location. */
pci_dev_t dev = PCI_BDF (0, 10, 0);
/* Set PCI Class code --
The primary side sees this class code at 0x08 in the
primary config space. This must be something other then a
bridge, or MS Windows starts doing weird stuff to me. */
pci_write_config_dword (dev, 0x48, 0x04800000);
/* Set subsystem ID --
The primary side sees this value at 0x2c. We set it here so
that the host can tell what sort of device this is:
We are a Picture Elements [0x12c5] JSE [0x008a]. */
pci_write_config_dword (dev, 0x6c, 0x008a12c5);
/* Downstream (Primary-to-Secondary) BARs are set up mostly
off. We need only the Memory-0 Bar so that the host can get
at the CSR region to set up tables and the lot. */
/* Downstream Memory 0 setup (4K for CSR) */
pci_write_config_dword (dev, 0xac, 0xfffff000);
/* Downstream Memory 1 setup (off) */
pci_write_config_dword (dev, 0xb0, 0x00000000);
/* Downstream Memory 2 setup (off) */
pci_write_config_dword (dev, 0xb4, 0x00000000);
/* Downstream Memory 3 setup (off) */
pci_write_config_dword (dev, 0xb8, 0x00000000);
/* Upstream (Secondary-to-Primary) BARs are used to get at
host memory from the JSE card. Create two regions: a small
one to manage individual word reads/writes, and a larger
one for doing bulk frame moves. */
/* Upstream Memory 0 Setup -- (BAR2) 4K non-prefetchable */
pci_write_config_dword (dev, 0xc4, 0xfffff000);
/* Upstream Memory 1 setup -- (BAR3) 4K non-prefetchable */
pci_write_config_dword (dev, 0xc8, 0xfffff000);
/* Upstream Memory 2 (BAR4) uses page translation, and is set
up in CCR1. Configure for 4K pages. */
/* Set CCR1,0 reigsters. This clears the Primary PCI Lockout
bit as well, so we are done configuring after this
point. Therefore, this must be the last step.
CC1[15:12]= 0 (disable I2O message unit)
CC1[11:8] = 0x5 (4K page size)
CC0[11] = 1 (Secondary Clock Disable: disable clock)
CC0[10] = 0 (Primary Access Lockout: allow primary access)
*/
pci_write_config_dword (dev, 0xcc, 0x05000800);
}

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/*------------------------------------------------------------------------+ */
/* */
/* This source code is dual-licensed. You may use it under the terms */
/* of the GNU General Public License version 2, or under the license */
/* below. */
/* */
/* This source code has been made available to you by IBM on an AS-IS */
/* basis. Anyone receiving this source is licensed under IBM */
/* copyrights to use it in any way he or she deems fit, including */
/* copying it, modifying it, compiling it, and redistributing it either */
/* with or without modifications. No license under IBM patents or */
/* patent applications is to be implied by the copyright license. */
/* */
/* Any user of this software should understand that IBM cannot provide */
/* technical support for this software and will not be responsible for */
/* any consequences resulting from the use of this software. */
/* */
/* Any person who transfers this source code or any derivative work */
/* must include the IBM copyright notice, this paragraph, and the */
/* preceding two paragraphs in the transferred software. */
/* */
/* COPYRIGHT I B M CORPORATION 1995 */
/* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */
/*------------------------------------------------------------------------- */
/*------------------------------------------------------------------------- */
/* Function: ext_bus_cntlr_init */
/* Description: Initializes the External Bus Controller for the external */
/* peripherals. IMPORTANT: For pass1 this code must run from */
/* cache since you can not reliably change a peripheral banks */
/* timing register (pbxap) while running code from that bank. */
/* For ex., since we are running from ROM on bank 0, we can NOT */
/* execute the code that modifies bank 0 timings from ROM, so */
/* we run it from cache. */
/* */
/* */
/* The layout for the PEI JSE board: */
/* Bank 0 - Flash and SRAM */
/* Bank 1 - SystemACE */
/* Bank 2 - not used */
/* Bank 3 - not used */
/* Bank 4 - not used */
/* Bank 5 - not used */
/* Bank 6 - not used */
/* Bank 7 - not used */
/*------------------------------------------------------------------------- */
#include <asm/ppc4xx.h>
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
#include <asm/cache.h>
#include <asm/mmu.h>
.globl ext_bus_cntlr_init
ext_bus_cntlr_init:
mflr r4 /* save link register */
bl ..getAddr
..getAddr:
mflr r3 /* get address of ..getAddr */
mtlr r4 /* restore link register */
addi r4,0,14 /* set ctr to 10; used to prefetch */
mtctr r4 /* 10 cache lines to fit this function */
/* in cache (gives us 8x10=80 instrctns) */
..ebcloop:
icbt r0,r3 /* prefetch cache line for addr in r3 */
addi r3,r3,32 /* move to next cache line */
bdnz ..ebcloop /* continue for 10 cache lines */
/*----------------------------------------------------------------- */
/* Delay to ensure all accesses to ROM are complete before changing */
/* bank 0 timings. 200usec should be enough. */
/* 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
/*----------------------------------------------------------------- */
addis r3,0,0x0
ori r3,r3,0xA000 /* ensure 200usec have passed since reset */
mtctr r3
..spinlp:
bdnz ..spinlp /* spin loop */
/*----------------------------------------------------------------- */
/* Memory Bank 0 (Flash) initialization */
/*----------------------------------------------------------------- */
addi r4,0,PB1AP
mtdcr EBC0_CFGADDR,r4
addis r4,0,0x9B01
ori r4,r4,0x5480
mtdcr EBC0_CFGDATA,r4
addi r4,0,PB0CR
mtdcr EBC0_CFGADDR,r4
addis r4,0,0xFFF1 /* BAS=0xFFF,BS=0x0(1MB),BU=0x3(R/W), */
ori r4,r4,0x8000 /* BW=0x0( 8 bits) */
mtdcr EBC0_CFGDATA,r4
blr

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/*
* Copyright (c) 2004 Picture Elements, Inc.
* Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
# include <common.h>
# include <asm/ppc4xx.h>
# include <asm/processor.h>
# include <asm/io.h>
# include "jse_priv.h"
/*
* This function is run very early, out of flash, and before devices are
* initialized. It is called by arch/powerpc/lib/board.c:board_init_f by virtue
* of being in the init_sequence array.
*
* The SDRAM has been initialized already -- start.S:start called
* init.S:init_sdram early on -- but it is not yet being used for
* anything, not even stack. So be careful.
*/
int board_early_init_f (void)
{
/*-------------------------------------------------------------------------+
| Interrupt controller setup for the JSE board.
| Note: IRQ 0-15 405GP internally generated; active high; level sensitive
| IRQ 16 405GP internally generated; active low; level sensitive
| IRQ 17-24 RESERVED/UNUSED
| IRQ 25 (EXT IRQ 0) PCI SLOT 0; active low; level sensitive
| IRQ 26 (EXT IRQ 1) PCI SLOT 1; active low; level sensitive
| IRQ 27 (EXT IRQ 2) JP2C CHIP ; active low; level sensitive
| IRQ 28 (EXT IRQ 3) PCI bridge; active low; level sensitive
| IRQ 29 (EXT IRQ 4) SystemACE IRQ; active high
| IRQ 30 (EXT IRQ 5) SystemACE BRdy (unused)
| IRQ 31 (EXT IRQ 6) (unused)
+-------------------------------------------------------------------------*/
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr (UIC0ER, 0x00000000); /* disable all ints */
mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */
mtdcr (UIC0PR, 0xFFFFFF87); /* set int polarities */
mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
/* Configure the interface to the SystemACE MCU port.
The SystemACE is fast, but there is no reason to have
excessivly tight timings. So the settings are slightly
generous. */
/* EBC0_B1AP: BME=1, TWT=2, CSN=0, OEN=1,
WBN=0, WBF=1, TH=0, RE=0, SOR=0, BEM=0, PEN=0 */
mtdcr (EBC0_CFGADDR, PB1AP);
mtdcr (EBC0_CFGDATA, 0x01011000);
/* EBC0_B1CR: BAS=x, BS=0(1MB), BU=3(R/W), BW=0(8bits) */
mtdcr (EBC0_CFGADDR, PB1CR);
mtdcr (EBC0_CFGDATA, CONFIG_SYS_SYSTEMACE_BASE | 0x00018000);
/* Enable the /PerWE output as /PerWE, instead of /PCIINT. */
/* CPC0_CR1 |= PCIPW */
mtdcr (0xb2, mfdcr (0xb2) | 0x00004000);
return 0;
}
#ifdef CONFIG_BOARD_PRE_INIT
int board_pre_init (void)
{
return board_early_init_f ();
}
#endif
/*
* This function is also called by arch/powerpc/lib/board.c:board_init_f (it is
* also in the init_sequence array) but later. Many more things are
* configured, but we are still running from flash.
*/
int checkboard (void)
{
unsigned vers, status;
/* check that the SystemACE chip is alive. */
printf ("ACE: ");
vers = readw (CONFIG_SYS_SYSTEMACE_BASE + 0x16);
printf ("SystemACE %u.%u (build %u)",
(vers >> 12) & 0x0f, (vers >> 8) & 0x0f, vers & 0xff);
status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04);
#ifdef DEBUG
printf (" STATUS=0x%08x", status);
#endif
/* If the flash card is present and there is an initial error,
then force a restart of the program. */
if (status & 0x00000010) {
printf (" CFDETECT");
if (status & 0x04) {
/* CONTROLREG = CFGPROG */
writew (0x1000, CONFIG_SYS_SYSTEMACE_BASE + 0x18);
udelay (500);
/* CONTROLREG = CFGRESET */
writew (0x0080, CONFIG_SYS_SYSTEMACE_BASE + 0x18);
udelay (500);
writew (0x0000, CONFIG_SYS_SYSTEMACE_BASE + 0x18);
/* CONTROLREG = CFGSTART */
writew (0x0020, CONFIG_SYS_SYSTEMACE_BASE + 0x18);
status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04);
}
}
/* Wait for the SystemACE to program its chain of devices. */
while ((status & 0x84) == 0x00) {
udelay (500);
status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04);
}
if (status & 0x04)
printf (" CFG-ERROR");
if (status & 0x80)
printf (" CFGDONE");
printf ("\n");
/* Force /RTS to active. The board it not wired quite
correctly to use cts/rtc flow control, so just force the
/RST active and forget about it. */
writeb (readb (0xef600404) | 0x03, 0xef600404);
printf ("JSE: ready\n");
return 0;
}
/* **** No more functions called by board_init_f. **** */
/*
* This function is called by arch/powerpc/lib/board.c:board_init_r. At this
* point, basic setup is done, U-Boot has been moved into SDRAM and
* PCI has been set up. From here we done late setup.
*/
int misc_init_r (void)
{
host_bridge_init ();
return 0;
}

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#ifndef __jse_priv_H
#define __jse_prov_H
/*
* Copyright (c) 2004 Picture Elements, Inc.
* Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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
*/
extern void host_bridge_init(void);
#endif

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@ -0,0 +1,182 @@
/*
* Copyright (c) 2004 Picture Elements, Inc.
* Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <common.h>
#include <asm/ppc4xx.h>
#include <asm/processor.h>
# define SDRAM_LEN 0x08000000
/*
* this is even after checkboard. It returns the size of the SDRAM
* that we have installed. This function is called by board_init_f
* in arch/powerpc/lib/board.c to initialize the memory and return what I
* found.
*/
phys_size_t initdram (int board_type)
{
/* Configure the SDRAMS */
/* disable memory controller */
mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
mtdcr (SDRAM0_CFGDATA, 0x00000000);
udelay (500);
/* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */
mtdcr (SDRAM0_CFGADDR, SDRAM0_BESR0);
mtdcr (SDRAM0_CFGDATA, 0xffffffff);
/* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */
mtdcr (SDRAM0_CFGADDR, SDRAM0_BESR1);
mtdcr (SDRAM0_CFGDATA, 0xffffffff);
/* Clear SDRAM0_ECCCFG (disable ECC) */
mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
mtdcr (SDRAM0_CFGDATA, 0x00000000);
/* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */
mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCESR);
mtdcr (SDRAM0_CFGDATA, 0xffffffff);
/* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
mtdcr (SDRAM0_CFGDATA, 0x010a4016);
/* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
mtdcr (SDRAM0_CFGDATA, 0x00084001);
/* Memory Bank 1 Config == BA=0x04000000, SZ=64M, AM=3, BE=1 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
mtdcr (SDRAM0_CFGDATA, 0x04084001);
/* Memory Bank 2 Config == BE=0 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
mtdcr (SDRAM0_CFGDATA, 0x00000000);
/* Memory Bank 3 Config == BE=0 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
mtdcr (SDRAM0_CFGDATA, 0x00000000);
/* refresh timer = 0x400 */
mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
mtdcr (SDRAM0_CFGDATA, 0x04000000);
/* Power management idle timer set to the default. */
mtdcr (SDRAM0_CFGADDR, SDRAM0_PMIT);
mtdcr (SDRAM0_CFGDATA, 0x07c00000);
udelay (500);
/* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) */
mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
mtdcr (SDRAM0_CFGDATA, 0x80e00000);
return SDRAM_LEN;
}
/*
* The U-Boot core, as part of the initialization to prepare for
* loading the monitor into SDRAM, requests of this function that the
* memory be tested. Return 0 if the memory tests OK.
*/
int testdram (void)
{
unsigned long idx;
unsigned val;
unsigned errors;
volatile unsigned long *sdram;
#ifdef DEBUG
printf ("SDRAM Controller Registers --\n");
mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_CFG : 0x%08x\n", val);
mtdcr (SDRAM0_CFGADDR, 0x24);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_STATUS: 0x%08x\n", val);
mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_B0CR : 0x%08x\n", val);
mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_B1CR : 0x%08x\n", val);
mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_TR : 0x%08x\n", val);
mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
val = mfdcr (SDRAM0_CFGDATA);
printf (" SDRAM0_RTR : 0x%08x\n", val);
#endif
/* Wait for memory to be ready by testing MRSCMPbit
bit. Really, there should already have been plenty of time,
given it was started long ago. But, best to check. */
for (idx = 0; idx < 1000000; idx += 1) {
mtdcr (SDRAM0_CFGADDR, 0x24);
val = mfdcr (SDRAM0_CFGDATA);
if (val & 0x80000000)
break;
}
if (!(val & 0x80000000)) {
printf ("SDRAM ERROR: SDRAM0_STATUS never set!\n");
return 1;
}
/* Start memory test. */
printf ("test: %u MB - ", SDRAM_LEN / 1048576);
sdram = (unsigned long *) CONFIG_SYS_SDRAM_BASE;
printf ("write - ");
for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) {
sdram[idx + 0] = idx;
sdram[idx + 1] = ~idx;
}
printf ("read - ");
errors = 0;
for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) {
if (sdram[idx + 0] != idx)
errors += 1;
if (sdram[idx + 1] != ~idx)
errors += 1;
if (errors > 0)
break;
}
if (errors > 0) {
printf ("NOT OK\n");
printf ("FIRST ERROR at %p: 0x%08lx:0x%08lx != 0x%08lx:0x%08lx\n",
sdram + idx, sdram[idx + 0], sdram[idx + 1], idx, ~idx);
return 1;
}
printf ("ok\n");
return 0;
}