Commit 933ee711 authored by Paul Bolle's avatar Paul Bolle Committed by Michael Ellerman

powerpc: remove PReP platform

PPC_PREP is marked as BROKEN since v2.6.15. Remove all PReP specific
code now.
Signed-off-by: default avatarPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
parent 9850baed
......@@ -14,10 +14,6 @@ hvcs.txt
- IBM "Hypervisor Virtual Console Server" Installation Guide
mpc52xx.txt
- Linux 2.6.x on MPC52xx family
sound.txt
- info on sound support under Linux/PPC
zImage_layout.txt
- info on the kernel images for Linux/PPC
qe_firmware.txt
- describes the layout of firmware binaries for the Freescale QUICC
Engine and the code that parses and uploads the microcode therein.
Information about PowerPC Sound support
=====================================================================
Please mail me (Cort Dougan, cort@fsmlabs.com) if you have questions,
comments or corrections.
Last Change: 6.16.99
This just covers sound on the PReP and CHRP systems for now and later
will contain information on the PowerMac's.
Sound on PReP has been tested and is working with the PowerStack and IBM
Power Series onboard sound systems which are based on the cs4231(2) chip.
The sound options when doing the make config are a bit different from
the default, though.
The I/O base, irq and dma lines that you enter during the make config
are ignored and are set when booting according to the machine type.
This is so that one binary can be used for Motorola and IBM machines
which use different values and isn't allowed by the driver, so things
are hacked together in such a way as to allow this information to be
set automatically on boot.
1. Motorola PowerStack PReP machines
Enable support for "Crystal CS4232 based (PnP) cards" and for the
Microsoft Sound System. The MSS isn't used, but some of the routines
that the CS4232 driver uses are in it.
Although the options you set are ignored and determined automatically
on boot these are included for information only:
(830) CS4232 audio I/O base 530, 604, E80 or F40
(10) CS4232 audio IRQ 5, 7, 9, 11, 12 or 15
(6) CS4232 audio DMA 0, 1 or 3
(7) CS4232 second (duplex) DMA 0, 1 or 3
This will allow simultaneous record and playback, as 2 different dma
channels are used.
The sound will be all left channel and very low volume since the
auxiliary input isn't muted by default. I had the changes necessary
for this in the kernel but the sound driver maintainer didn't want
to include them since it wasn't common in other machines. To fix this
you need to mute it using a mixer utility of some sort (if you find one
please let me know) or by patching the driver yourself and recompiling.
There is a problem on the PowerStack 2's (PowerStack Pro's) using a
different irq/drq than the kernel expects. Unfortunately, I don't know
which irq/drq it is so if anyone knows please email me.
Midi is not supported since the cs4232 driver doesn't support midi yet.
2. IBM PowerPersonal PReP machines
I've only tested sound on the Power Personal Series of IBM workstations
so if you try it on others please let me know the result. I'm especially
interested in the 43p's sound system, which I know nothing about.
Enable support for "Crystal CS4232 based (PnP) cards" and for the
Microsoft Sound System. The MSS isn't used, but some of the routines
that the CS4232 driver uses are in it.
Although the options you set are ignored and determined automatically
on boot these are included for information only:
(530) CS4232 audio I/O base 530, 604, E80 or F40
(5) CS4232 audio IRQ 5, 7, 9, 11, 12 or 15
(1) CS4232 audio DMA 0, 1 or 3
(7) CS4232 second (duplex) DMA 0, 1 or 3
(330) CS4232 MIDI I/O base 330, 370, 3B0 or 3F0
(9) CS4232 MIDI IRQ 5, 7, 9, 11, 12 or 15
This setup does _NOT_ allow for recording yet.
Midi is not supported since the cs4232 driver doesn't support midi yet.
2. IBM CHRP
I have only tested this on the 43P-150. Build the kernel with the cs4232
set as a module and load the module with irq=9 dma=1 dma2=2 io=0x550
Information about the Linux/PPC kernel images
=====================================================================
Please mail me (Cort Dougan, cort@fsmlabs.com) if you have questions,
comments or corrections.
This document is meant to answer several questions I've had about how
the PReP system boots and how Linux/PPC interacts with that mechanism.
It would be nice if we could have information on how other architectures
boot here as well. If you have anything to contribute, please
let me know.
1. PReP boot file
This is the file necessary to boot PReP systems from floppy or
hard drive. The firmware reads the PReP partition table entry
and will load the image accordingly.
To boot the zImage, copy it onto a floppy with dd if=zImage of=/dev/fd0h1440
or onto a PReP hard drive partition with dd if=zImage of=/dev/sda4
assuming you've created a PReP partition (type 0x41) with fdisk on
/dev/sda4.
The layout of the image format is:
0x0 +------------+
| | PReP partition table entry
| |
0x400 +------------+
| | Bootstrap program code + data
| |
| |
+------------+
| | compressed kernel, elf header removed
+------------+
| | initrd (if loaded)
+------------+
| | Elf section table for bootstrap program
+------------+
2. MBX boot file
The MBX boards can load an elf image, and relocate it to the
proper location in memory - it copies the image to the location it was
linked at.
......@@ -647,14 +647,14 @@ menu "Bus options"
config ISA
bool "Support for ISA-bus hardware"
depends on PPC_PREP || PPC_CHRP
depends on PPC_CHRP
select PPC_I8259
help
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
inside your box. If you have an Apple machine, say N here; if you
have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
you have an embedded board, consult your board documentation.
have an IBM RS/6000 or pSeries machine, say Y. If you have an
embedded board, consult your board documentation.
config ZONE_DMA
bool
......@@ -968,7 +968,7 @@ config TASK_SIZE_BOOL
config TASK_SIZE
hex "Size of user task space" if TASK_SIZE_BOOL
default "0x80000000" if PPC_PREP || PPC_8xx
default "0x80000000" if PPC_8xx
default "0xc0000000"
config CONSISTENT_SIZE_BOOL
......
......@@ -16,10 +16,6 @@
*
* None of this really applies for Power Macintoshes. There is
* basically just enough here to get kernel/dma.c to compile.
*
* There may be some comments or restrictions made here which are
* not valid for the PReP platform. Take what you read
* with a grain of salt.
*/
#include <asm/io.h>
......@@ -57,7 +53,6 @@
* - page registers for 5-7 don't use data bit 0, represent 128K pages
* - page registers for 0-3 use bit 0, represent 64K pages
*
* On PReP, DMA transfers are limited to the lower 16MB of _physical_ memory.
* On CHRP, the W83C553F (and VLSI Tollgate?) support full 32 bit addressing.
* Note that addresses loaded into registers must be _physical_ addresses,
* not logical addresses (which may differ if paging is active).
......
......@@ -15,10 +15,6 @@
extern int check_legacy_ioport(unsigned long base_port);
#define I8042_DATA_REG 0x60
#define FDC_BASE 0x3f0
/* only relevant for PReP */
#define _PIDXR 0x279
#define _PNPWRP 0xa79
#define PNPBIOS_BASE 0xf000
#if defined(CONFIG_PPC64) && defined(CONFIG_PCI)
extern struct pci_dev *isa_bridge_pcidev;
......
......@@ -40,7 +40,7 @@
* -- BenH.
*/
/* PREP sub-platform types see residual.h for these */
/* PREP sub-platform types. Unused */
#define _PREP_Motorola 0x01 /* motorola prep */
#define _PREP_Firm 0x02 /* firmworks prep */
#define _PREP_IBM 0x00 /* ibm prep */
......@@ -56,13 +56,6 @@
extern int _chrp_type;
#ifdef CONFIG_PPC_PREP
/* what kind of prep workstation we are */
extern int _prep_type;
#endif /* CONFIG_PPC_PREP */
#endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */
/*
......
......@@ -621,12 +621,6 @@ int check_legacy_ioport(unsigned long base_port)
case FDC_BASE: /* FDC1 */
np = of_find_node_by_type(NULL, "fdc");
break;
#ifdef CONFIG_PPC_PREP
case _PIDXR:
case _PNPWRP:
case PNPBIOS_BASE:
/* implement me */
#endif
default:
/* ipmi is supposed to fail here */
break;
......
......@@ -6,7 +6,6 @@ source "arch/powerpc/platforms/chrp/Kconfig"
source "arch/powerpc/platforms/512x/Kconfig"
source "arch/powerpc/platforms/52xx/Kconfig"
source "arch/powerpc/platforms/powermac/Kconfig"
source "arch/powerpc/platforms/prep/Kconfig"
source "arch/powerpc/platforms/maple/Kconfig"
source "arch/powerpc/platforms/pasemi/Kconfig"
source "arch/powerpc/platforms/ps3/Kconfig"
......@@ -233,7 +232,7 @@ endmenu
config PPC601_SYNC_FIX
bool "Workarounds for PPC601 bugs"
depends on 6xx && (PPC_PREP || PPC_PMAC)
depends on 6xx && PPC_PMAC
help
Some versions of the PPC601 (the first PowerPC chip) have bugs which
mean that extra synchronization instructions are required near
......
config PPC_PREP
bool "PowerPC Reference Platform (PReP) based machines"
depends on 6xx && BROKEN
select HAVE_PCSPKR_PLATFORM
select MPIC
select PPC_I8259
select PPC_INDIRECT_PCI
select PPC_UDBG_16550
select PPC_NATIVE
default n
config PREP_RESIDUAL
bool "Support for PReP Residual Data"
depends on PPC_PREP
help
Some PReP systems have residual data passed to the kernel by the
firmware. This allows detection of memory size, devices present and
other useful pieces of information. Sometimes this information is
not present or incorrect, in which case it could lead to the machine
behaving incorrectly. If this happens, either disable PREP_RESIDUAL
or pass the 'noresidual' option to the kernel.
If you are running a PReP system, say Y here, otherwise say N.
......@@ -513,10 +513,6 @@ static int __init pnpbios_init(void)
{
int ret;
#if defined(CONFIG_PPC)
if (check_legacy_ioport(PNPBIOS_BASE))
return -ENODEV;
#endif
if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table) ||
paravirt_enabled()) {
printk(KERN_INFO "PnPBIOS: Disabled\n");
......@@ -570,10 +566,7 @@ fs_initcall(pnpbios_init);
static int __init pnpbios_thread_init(void)
{
struct task_struct *task;
#if defined(CONFIG_PPC)
if (check_legacy_ioport(PNPBIOS_BASE))
return 0;
#endif
if (pnpbios_disabled)
return 0;
......
......@@ -53,12 +53,6 @@
#ifdef CONFIG_AMIGA
#include <asm/amigahw.h>
#endif
#ifdef CONFIG_PPC_PREP
#include <asm/machdep.h>
#define isPReP machine_is(prep)
#else
#define isPReP 0
#endif
#include <video/vga.h>
#include <video/cirrus.h>
......@@ -557,30 +551,18 @@ static int cirrusfb_check_var(struct fb_var_screeninfo *var,
break;
case 16:
if (isPReP) {
var->red.offset = 2;
var->green.offset = -3;
var->blue.offset = 8;
} else {
var->red.offset = 11;
var->green.offset = 5;
var->blue.offset = 0;
}
var->red.length = 5;
var->green.length = 6;
var->blue.length = 5;
break;
case 24:
if (isPReP) {
var->red.offset = 0;
var->green.offset = 8;
var->blue.offset = 16;
} else {
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
}
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
......@@ -1874,17 +1856,6 @@ static void cirrusfb_imageblit(struct fb_info *info,
}
}
#ifdef CONFIG_PPC_PREP
#define PREP_VIDEO_BASE ((volatile unsigned long) 0xC0000000)
#define PREP_IO_BASE ((volatile unsigned char *) 0x80000000)
static void get_prep_addrs(unsigned long *display, unsigned long *registers)
{
*display = PREP_VIDEO_BASE;
*registers = (unsigned long) PREP_IO_BASE;
}
#endif /* CONFIG_PPC_PREP */
#ifdef CONFIG_PCI
static int release_io_ports;
......@@ -2139,21 +2110,12 @@ static int cirrusfb_pci_register(struct pci_dev *pdev,
dev_dbg(info->device, " base address 1 is 0x%Lx\n",
(unsigned long long)pdev->resource[1].start);
if (isPReP) {
pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, 0x00000000);
#ifdef CONFIG_PPC_PREP
get_prep_addrs(&board_addr, &info->fix.mmio_start);
#endif
/* PReP dies if we ioremap the IO registers, but it works w/out... */
cinfo->regbase = (char __iomem *) info->fix.mmio_start;
} else {
dev_dbg(info->device,
"Attempt to get PCI info for Cirrus Graphics Card\n");
get_pci_addrs(pdev, &board_addr, &info->fix.mmio_start);
/* FIXME: this forces VGA. alternatives? */
cinfo->regbase = NULL;
cinfo->laguna_mmio = ioremap(info->fix.mmio_start, 0x1000);
}
dev_dbg(info->device, "Board address: 0x%lx, register address: 0x%lx\n",
board_addr, info->fix.mmio_start);
......
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