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Commit 147cd454 authored by Sylvain Munaut's avatar Sylvain Munaut Committed by Linus Torvalds
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[ppc] Add basic support for the Freescale MPC52xx embedded CPU and the LITE5200 platform 

Signed-off-by: default avatarSylvain Munaut <tnt@246tNt.com>
parent f9c235e6
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Showing with 1921 additions and 15 deletions
Documentation/powerpc/mpc52xx.txt 0 → 100644
View file @ 147cd454
Linux 2.6.x on MPC52xx family
-----------------------------
For the latest info, go to http://www.246tNt.com/mpc52xx/state.txt
To compile/use :
- U-Boot:
# <edit Makefile to set ARCH=ppc & CROSS_COMPILE=... ( also EXTRAVERSION
if you wish to ).
# make lite5200_defconfig
# make uImage
then, on U-boot:
=> tftpboot 200000 uImage
=> tftpboot 400000 pRamdisk
=> bootm 200000 400000
- DBug:
# <edit Makefile to set ARCH=ppc & CROSS_COMPILE=... ( also EXTRAVERSION
if you wish to ).
# make lite5200_defconfig
# cp your_initrd.gz arch/ppc/boot/images/ramdisk.image.gz
# make zImage.initrd
# make
then in DBug:
DBug> dn -i zImage.initrd.lite5200
Some remarks :
- The port is named mpc52xxx, and config options are PPC_MPC52xx. The MGT5100
is not supported, and I'm not sure anyone is interesting in working on it
so. I didn't took 5xxx because there's apparently a lot of 5xxx that have
nothing to do with the MPC5200. I also included the 'MPC' for the same
reason.
- Of course, I inspired myself from the 2.4 port. If you think I forgot to
mention you/your company in the copyright of some code, I'll correct it
ASAP.
- The codes wants the MBAR to be set at 0xf0000000 by the bootloader. It's
mapped 1:1 with the MMU. If for whatever reason, you want to change this,
beware that some code depends on the 0xf0000000 address and other depends
on the 1:1 mapping.
- Most of the code assumes that port multiplexing, frequency selection, ...
has already been done. IMHO this should be done as early as possible, in
the bootloader. If for whatever reason you can't do it there, do it in the
platform setup code (if U-Boot) or in the arch/ppc/boot/simple/... (if
DBug)
arch/ppc/Kconfig
View file @ 147cd454
...@@ -44,18 +44,18 @@ choice ...@@ -44,18 +44,18 @@ choice
default 6xx default 6xx
config 6xx config 6xx
bool "6xx/7xx/74xx/8260" bool "6xx/7xx/74xx/52xx/8260"
help help
There are four types of PowerPC chips supported. The more common There are four types of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 8260), the IBM embedded versions versions (821, 823, 850, 855, 860, 52xx, 8260), the IBM embedded
(403 and 405) and the high end 64 bit Power processors (POWER 3, versions (403 and 405) and the high end 64 bit Power processors
POWER4, and IBM 970 also known as G5) (POWER 3, POWER4, and IBM 970 also known as G5)
Unless you are building a kernel for one of the embedded processor Unless you are building a kernel for one of the embedded processor
systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
Note that the kernel runs in 32-bit mode even on 64-bit chips. Note that the kernel runs in 32-bit mode even on 64-bit chips.
Also note that because the 82xx family has a 603e core, specific Also note that because the 52xx & 82xx family has a 603e core,
support for that chipset is asked later on. specific support for that chipset is asked later on.
config 40x config 40x
bool "40x" bool "40x"
...@@ -601,6 +601,15 @@ config TQM8260 ...@@ -601,6 +601,15 @@ config TQM8260
config ADS8272 config ADS8272
bool "ADS8272" bool "ADS8272"
config LITE5200
bool "Freescale LITE5200 / (IceCube)"
select PPC_MPC52xx
help
Support for the LITE5200 dev board for the MPC5200 from Freescale.
This is for the LITE5200 version 2.0 board. Don't know if it changes
much but it's only been tested on this board version. I think this
board is also known as IceCube.
endchoice endchoice
config PQ2ADS config PQ2ADS
...@@ -618,6 +627,9 @@ config EMBEDDEDBOOT ...@@ -618,6 +627,9 @@ config EMBEDDEDBOOT
depends on 8xx || 8260 depends on 8xx || 8260
default y default y
config PPC_MPC52xx
bool
config 8260 config 8260
bool "CPM2 Support" if WILLOW bool "CPM2 Support" if WILLOW
depends on 6xx depends on 6xx
...@@ -707,7 +719,7 @@ config MPC10X_BRIDGE ...@@ -707,7 +719,7 @@ config MPC10X_BRIDGE
config FSL_OCP config FSL_OCP
bool bool
depends on MPC10X_BRIDGE depends on MPC10X_BRIDGE || PPC_MPC52xx
default y default y
config MPC10X_OPENPIC config MPC10X_OPENPIC
...@@ -1363,7 +1375,7 @@ config BOOTX_TEXT ...@@ -1363,7 +1375,7 @@ config BOOTX_TEXT
config SERIAL_TEXT_DEBUG config SERIAL_TEXT_DEBUG
bool "Support for early boot texts over serial port" bool "Support for early boot texts over serial port"
depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550 depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550 || PPC_MPC52xx
config PPC_OCP config PPC_OCP
bool bool
......
arch/ppc/boot/common/misc-common.c
View file @ 147cd454
...@@ -59,7 +59,7 @@ static int _cvt(unsigned long val, char *buf, long radix, char *digits); ...@@ -59,7 +59,7 @@ static int _cvt(unsigned long val, char *buf, long radix, char *digits);
void _vprintk(void(*putc)(const char), const char *fmt0, va_list ap); void _vprintk(void(*putc)(const char), const char *fmt0, va_list ap);
unsigned char *ISA_io = NULL; unsigned char *ISA_io = NULL;
#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) || defined(CONFIG_SERIAL_MPC52xx_CONSOLE)
extern unsigned long com_port; extern unsigned long com_port;
extern int serial_tstc(unsigned long com_port); extern int serial_tstc(unsigned long com_port);
...@@ -80,7 +80,7 @@ void exit(void) ...@@ -80,7 +80,7 @@ void exit(void)
int tstc(void) int tstc(void)
{ {
#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) || defined(CONFIG_SERIAL_MPC52xx_CONSOLE)
if(keyb_present) if(keyb_present)
return (CRT_tstc() || serial_tstc(com_port)); return (CRT_tstc() || serial_tstc(com_port));
else else
...@@ -93,7 +93,7 @@ int tstc(void) ...@@ -93,7 +93,7 @@ int tstc(void)
int getc(void) int getc(void)
{ {
while (1) { while (1) {
#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) || defined(CONFIG_SERIAL_MPC52xx_CONSOLE)
if (serial_tstc(com_port)) if (serial_tstc(com_port))
return (serial_getc(com_port)); return (serial_getc(com_port));
#endif /* serial console */ #endif /* serial console */
...@@ -108,7 +108,7 @@ putc(const char c) ...@@ -108,7 +108,7 @@ putc(const char c)
{ {
int x,y; int x,y;
#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) || defined(CONFIG_SERIAL_MPC52xx_CONSOLE)
serial_putc(com_port, c); serial_putc(com_port, c);
if ( c == '\n' ) if ( c == '\n' )
serial_putc(com_port, '\r'); serial_putc(com_port, '\r');
...@@ -155,7 +155,7 @@ void puts(const char *s) ...@@ -155,7 +155,7 @@ void puts(const char *s)
y = orig_y; y = orig_y;
while ( ( c = *s++ ) != '\0' ) { while ( ( c = *s++ ) != '\0' ) {
#if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) #if defined(CONFIG_SERIAL_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) || defined(CONFIG_SERIAL_MPC52xx_CONSOLE)
serial_putc(com_port, c); serial_putc(com_port, c);
if ( c == '\n' ) serial_putc(com_port, '\r'); if ( c == '\n' ) serial_putc(com_port, '\r');
#endif /* serial console */ #endif /* serial console */
......
arch/ppc/boot/simple/Makefile
View file @ 147cd454
...@@ -113,6 +113,12 @@ zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE ...@@ -113,6 +113,12 @@ zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE
entrypoint-$(CONFIG_SPRUCE) := 0x00800000 entrypoint-$(CONFIG_SPRUCE) := 0x00800000
misc-$(CONFIG_SPRUCE) += misc-spruce.o misc-$(CONFIG_SPRUCE) += misc-spruce.o
zimage-$(CONFIG_LITE5200) := zImage-STRIPELF
zimageinitrd-$(CONFIG_LITE5200) := zImage.initrd-STRIPELF
end-$(CONFIG_LITE5200) := lite5200
cacheflag-$(CONFIG_LITE5200) := -include $(clear_L2_L3)
# SMP images should have a '.smp' suffix. # SMP images should have a '.smp' suffix.
end-$(CONFIG_SMP) := $(end-y).smp end-$(CONFIG_SMP) := $(end-y).smp
...@@ -144,6 +150,7 @@ boot-$(CONFIG_8xx) += m8xx_tty.o ...@@ -144,6 +150,7 @@ boot-$(CONFIG_8xx) += m8xx_tty.o
boot-$(CONFIG_8260) += m8260_tty.o boot-$(CONFIG_8260) += m8260_tty.o
boot-$(CONFIG_GT64260_CONSOLE) += gt64260_tty.o boot-$(CONFIG_GT64260_CONSOLE) += gt64260_tty.o
endif endif
boot-$(CONFIG_SERIAL_MPC52xx_CONSOLE) += mpc52xx_tty.o
LIBS := $(common)/lib.a $(bootlib)/lib.a LIBS := $(common)/lib.a $(bootlib)/lib.a
ifeq ($(CONFIG_PPC_PREP),y) ifeq ($(CONFIG_PPC_PREP),y)
......
arch/ppc/boot/simple/mpc52xx_tty.c 0 → 100644
View file @ 147cd454
/*
* arch/ppc/boot/simple/mpc52xx_tty.c
*
* Minimal serial functions needed to send messages out a MPC52xx
* Programmable Serial Controller (PSC).
*
* Author: Dale Farnsworth <dfarnsworth@mvista.com>
*
* 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under the
* terms of the GNU General Public License version 2. This program is licensed
* "as is" without any warranty of any kind, whether express or implied.
*/
#include <linux/config.h>
#include <linux/types.h>
#include <asm/uaccess.h>
#include <asm/mpc52xx.h>
#include <asm/mpc52xx_psc.h>
#include <asm/serial.h>
#include <asm/time.h>
#if MPC52xx_PF_CONSOLE_PORT == 0
#define MPC52xx_CONSOLE MPC52xx_PSC1
#define MPC52xx_PSC_CONFIG_SHIFT 0
#elif MPC52xx_PF_CONSOLE_PORT == 1
#define MPC52xx_CONSOLE MPC52xx_PSC2
#define MPC52xx_PSC_CONFIG_SHIFT 4
#elif MPC52xx_PF_CONSOLE_PORT == 2
#define MPC52xx_CONSOLE MPC52xx_PSC3
#define MPC52xx_PSC_CONFIG_SHIFT 8
#else
#error "MPC52xx_PF_CONSOLE_PORT not defined"
#endif
static struct mpc52xx_psc *psc = (struct mpc52xx_psc *)MPC52xx_CONSOLE;
/* The decrementer counts at the system bus clock frequency
* divided by four. The most accurate time base is connected to the
* rtc. We read the decrementer change during one rtc tick (one second)
* and multiply by 4 to get the system bus clock frequency.
*/
int
mpc52xx_ipbfreq(void)
{
struct mpc52xx_rtc *rtc = (struct mpc52xx_rtc*)MPC52xx_RTC;
struct mpc52xx_cdm *cdm = (struct mpc52xx_cdm*)MPC52xx_CDM;
int current_time, previous_time;
int tbl_start, tbl_end;
int xlbfreq, ipbfreq;
out_be32(&rtc->dividers, 0x8f1f0000); /* Set RTC 64x faster */
previous_time = in_be32(&rtc->time);
while ((current_time = in_be32(&rtc->time)) == previous_time) ;
tbl_start = get_tbl();
previous_time = current_time;
while ((current_time = in_be32(&rtc->time)) == previous_time) ;
tbl_end = get_tbl();
out_be32(&rtc->dividers, 0xffff0000); /* Restore RTC */
xlbfreq = (tbl_end - tbl_start) << 8;
ipbfreq = (in_8(&cdm->ipb_clk_sel) & 1) ? xlbfreq / 2 : xlbfreq;
return ipbfreq;
}
unsigned long
serial_init(int ignored, void *ignored2)
{
struct mpc52xx_gpio *gpio = (struct mpc52xx_gpio *)MPC52xx_GPIO;
int divisor;
int mode1;
int mode2;
u32 val32;
static int been_here = 0;
if (been_here)
return 0;
been_here = 1;
val32 = in_be32(&gpio->port_config);
val32 &= ~(0x7 << MPC52xx_PSC_CONFIG_SHIFT);
val32 |= MPC52xx_GPIO_PSC_CONFIG_UART_WITHOUT_CD
<< MPC52xx_PSC_CONFIG_SHIFT;
out_be32(&gpio->port_config, val32);
out_8(&psc->command, MPC52xx_PSC_RST_TX
| MPC52xx_PSC_RX_DISABLE | MPC52xx_PSC_TX_ENABLE);
out_8(&psc->command, MPC52xx_PSC_RST_RX);
out_be32(&psc->sicr, 0x0);
out_be16(&psc->mpc52xx_psc_clock_select, 0xdd00);
out_be16(&psc->tfalarm, 0xf8);
out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1
| MPC52xx_PSC_RX_ENABLE
| MPC52xx_PSC_TX_ENABLE);
divisor = ((mpc52xx_ipbfreq()
/ (CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD * 16)) + 1) >> 1;
mode1 = MPC52xx_PSC_MODE_8_BITS | MPC52xx_PSC_MODE_PARNONE
| MPC52xx_PSC_MODE_ERR;
mode2 = MPC52xx_PSC_MODE_ONE_STOP;
out_8(&psc->ctur, divisor>>8);
out_8(&psc->ctlr, divisor);
out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1);
out_8(&psc->mode, mode1);
out_8(&psc->mode, mode2);
return 0; /* ignored */
}
void
serial_putc(void *ignored, const char c)
{
serial_init(0, 0);
while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP)) ;
out_8(&psc->mpc52xx_psc_buffer_8, c);
while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_TXEMP)) ;
}
char
serial_getc(void *ignored)
{
while (!(in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY)) ;
return in_8(&psc->mpc52xx_psc_buffer_8);
}
int
serial_tstc(void *ignored)
{
return (in_be16(&psc->mpc52xx_psc_status) & MPC52xx_PSC_SR_RXRDY) != 0;
}
arch/ppc/configs/lite5200_defconfig 0 → 100644
View file @ 147cd454
#
# Automatically generated make config: don't edit
#
CONFIG_MMU=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_HAVE_DEC_LOCK=y
CONFIG_PPC=y
CONFIG_PPC32=y
CONFIG_GENERIC_NVRAM=y
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_STANDALONE=y
CONFIG_BROKEN_ON_SMP=y
#
# General setup
#
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_HOTPLUG is not set
# CONFIG_IKCONFIG is not set
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
#
# Processor
#
CONFIG_6xx=y
# CONFIG_40x is not set
# CONFIG_44x is not set
# CONFIG_POWER3 is not set
# CONFIG_POWER4 is not set
# CONFIG_8xx is not set
# CONFIG_E500 is not set
# CONFIG_ALTIVEC is not set
# CONFIG_TAU is not set
# CONFIG_CPU_FREQ is not set
CONFIG_FSL_OCP=y
CONFIG_PPC_STD_MMU=y
#
# Platform options
#
# CONFIG_PPC_MULTIPLATFORM is not set
# CONFIG_APUS is not set
# CONFIG_WILLOW is not set
# CONFIG_PCORE is not set
# CONFIG_POWERPMC250 is not set
# CONFIG_EV64260 is not set
# CONFIG_SPRUCE is not set
# CONFIG_LOPEC is not set
# CONFIG_MCPN765 is not set
# CONFIG_MVME5100 is not set
# CONFIG_PPLUS is not set
# CONFIG_PRPMC750 is not set
# CONFIG_PRPMC800 is not set
# CONFIG_SANDPOINT is not set
# CONFIG_ADIR is not set
# CONFIG_K2 is not set
# CONFIG_PAL4 is not set
# CONFIG_GEMINI is not set
# CONFIG_EST8260 is not set
# CONFIG_SBC82xx is not set
# CONFIG_SBS8260 is not set
# CONFIG_RPX6 is not set
# CONFIG_TQM8260 is not set
# CONFIG_ADS8272 is not set
CONFIG_LITE5200=y
CONFIG_PPC_MPC52xx=y
# CONFIG_SMP is not set
# CONFIG_PREEMPT is not set
# CONFIG_HIGHMEM is not set
CONFIG_KERNEL_ELF=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0 root=/dev/ram0 rw"
#
# Bus options
#
CONFIG_GENERIC_ISA_DMA=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_NAMES is not set
#
# Advanced setup
#
CONFIG_ADVANCED_OPTIONS=y
CONFIG_HIGHMEM_START=0xfe000000
# CONFIG_LOWMEM_SIZE_BOOL is not set
CONFIG_LOWMEM_SIZE=0x30000000
# CONFIG_KERNEL_START_BOOL is not set
CONFIG_KERNEL_START=0xc0000000
# CONFIG_TASK_SIZE_BOOL is not set
CONFIG_TASK_SIZE=0x80000000
# CONFIG_BOOT_LOAD_BOOL is not set
CONFIG_BOOT_LOAD=0x00800000
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_INITRD=y
# CONFIG_LBD is not set
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Macintosh device drivers
#
#
# Networking support
#
# CONFIG_NET is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
#
# ISDN subsystem
#
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=y
#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_MPC52xx=y
CONFIG_SERIAL_MPC52xx_CONSOLE=y
CONFIG_SERIAL_MPC52xx_CONSOLE_BAUD=9600
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_QIC02_TAPE is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set
#
# I2C support
#
# CONFIG_I2C is not set
#
# Misc devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
#
# Graphics support
#
# CONFIG_FB is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_FAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
#
# Library routines
#
# CONFIG_CRC16 is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set
#
# Profiling support
#
# CONFIG_PROFILING is not set
#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SLAB is not set
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_KGDB is not set
# CONFIG_XMON is not set
# CONFIG_BDI_SWITCH is not set
CONFIG_DEBUG_INFO=y
CONFIG_SERIAL_TEXT_DEBUG=y
CONFIG_PPC_OCP=y
#
# Security options
#
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
arch/ppc/kernel/cputable.c
View file @ 147cd454
...@@ -351,8 +351,8 @@ struct cpu_spec cpu_specs[] = { ...@@ -351,8 +351,8 @@ struct cpu_spec cpu_specs[] = {
32, 32, 32, 32,
__setup_cpu_603 __setup_cpu_603
}, },
{ /* 8280 is a G2_LE (603e core, plus some) */ { /* All G2_LE (603e core, plus some) have the same pvr */
0x7fff0000, 0x00820000, "8280", 0x7fff0000, 0x00820000, "G2_LE",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_CAN_DOZE | CPU_FTR_USE_TB |
CPU_FTR_CAN_NAP | CPU_FTR_HAS_HIGH_BATS, CPU_FTR_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
COMMON_PPC, COMMON_PPC,
......
arch/ppc/platforms/Makefile
View file @ 147cd454
...@@ -48,6 +48,7 @@ obj-$(CONFIG_PRPMC800) += prpmc800.o ...@@ -48,6 +48,7 @@ obj-$(CONFIG_PRPMC800) += prpmc800.o
obj-$(CONFIG_SANDPOINT) += sandpoint.o obj-$(CONFIG_SANDPOINT) += sandpoint.o
obj-$(CONFIG_SBC82xx) += sbc82xx.o obj-$(CONFIG_SBC82xx) += sbc82xx.o
obj-$(CONFIG_SPRUCE) += spruce.o obj-$(CONFIG_SPRUCE) += spruce.o
obj-$(CONFIG_LITE5200) += lite5200.o mpc5200.o
ifeq ($(CONFIG_SMP),y) ifeq ($(CONFIG_SMP),y)
obj-$(CONFIG_PPC_PMAC) += pmac_smp.o obj-$(CONFIG_PPC_PMAC) += pmac_smp.o
......
arch/ppc/platforms/lite5200.c 0 → 100644
View file @ 147cd454
/*
* arch/ppc/platforms/lite5200.c
*
* Platform support file for the Freescale LITE5200 based on MPC52xx.
* A maximum of this file should be moved to syslib/mpc52xx_?????
* so that new platform based on MPC52xx need a minimal platform file
* ( avoid code duplication )
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Based on the 2.4 code written by Kent Borg,
* Dale Farnsworth <dale.farnsworth@mvista.com> and
* Wolfgang Denk <wd@denx.de>
*
* Copyright 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright 2003 Motorola Inc.
* Copyright 2003 MontaVista Software Inc.
* Copyright 2003 DENX Software Engineering (wd@denx.de)
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/config.h>
#include <linux/initrd.h>
#include <linux/seq_file.h>
#include <linux/kdev_t.h>
#include <linux/root_dev.h>
#include <linux/console.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/ocp.h>
#include <asm/mpc52xx.h>
/* Board data given by U-Boot */
bd_t __res;
EXPORT_SYMBOL(__res); /* For modules */
/* ======================================================================== */
/* OCP device definition */
/* For board/shared resources like PSCs */
/* ======================================================================== */
/* Be sure not to load conficting devices : e.g. loading the UART drivers for
* PSC1 and then also loading a AC97 for this same PSC.
* For details about how to create an entry, look in the doc of the concerned
* driver ( eg drivers/serial/mpc52xx_uart.c for the PSC in uart mode )
*/
struct ocp_def board_ocp[] = {
{
.vendor = OCP_VENDOR_FREESCALE,
.function = OCP_FUNC_PSC_UART,
.index = 0,
.paddr = MPC52xx_PSC1,
.irq = MPC52xx_PSC1_IRQ,
.pm = OCP_CPM_NA,
},
{ /* Terminating entry */
.vendor = OCP_VENDOR_INVALID
}
};
/* ======================================================================== */
/* Platform specific code */
/* ======================================================================== */
static int
icecube_show_cpuinfo(struct seq_file *m)
{
seq_printf(m, "machine\t\t: Freescale LITE5200\n");
return 0;
}
static void __init
icecube_setup_arch(void)
{
/* Add board OCP definitions */
mpc52xx_add_board_devices(board_ocp);
}
void __init
platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
/* Generic MPC52xx platform initialization */
/* TODO Create one and move a max of stuff in it.
Put this init in the syslib */
struct bi_record *bootinfo = find_bootinfo();
if (bootinfo)
parse_bootinfo(bootinfo);
else {
/* Load the bd_t board info structure */
if (r3)
memcpy((void*)&__res,(void*)(r3+KERNELBASE),
sizeof(bd_t));
#ifdef CONFIG_BLK_DEV_INITRD
/* Load the initrd */
if (r4) {
initrd_start = r4 + KERNELBASE;
initrd_end = r5 + KERNELBASE;
}
#endif
/* Load the command line */
if (r6) {
*(char *)(r7+KERNELBASE) = 0;
strcpy(cmd_line, (char *)(r6+KERNELBASE));
}
}
/* BAT setup */
mpc52xx_set_bat();
/* No ISA bus AFAIK */
isa_io_base = 0;
isa_mem_base = 0;
/* Setup the ppc_md struct */
ppc_md.setup_arch = icecube_setup_arch;
ppc_md.show_cpuinfo = icecube_show_cpuinfo;
ppc_md.show_percpuinfo = NULL;
ppc_md.init_IRQ = mpc52xx_init_irq;
ppc_md.get_irq = mpc52xx_get_irq;
ppc_md.find_end_of_memory = mpc52xx_find_end_of_memory;
ppc_md.setup_io_mappings = mpc52xx_map_io;
ppc_md.restart = mpc52xx_restart;
ppc_md.power_off = mpc52xx_power_off;
ppc_md.halt = mpc52xx_halt;
/* No time keeper on the IceCube */
ppc_md.time_init = NULL;
ppc_md.get_rtc_time = NULL;
ppc_md.set_rtc_time = NULL;
ppc_md.calibrate_decr = mpc52xx_calibrate_decr;
#ifdef CONFIG_SERIAL_TEXT_DEBUG
ppc_md.progress = mpc52xx_progress;
#endif
}
arch/ppc/platforms/lite5200.h 0 → 100644
View file @ 147cd454
/*
* arch/ppc/platforms/lite5200.h
*
* Definitions for Freescale LITE5200 : MPC52xx Standard Development
* Platform board support
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef __PLATFORMS_LITE5200_H__
#define __PLATFORMS_LITE5200_H__
/* Serial port used for low-level debug */
#define MPC52xx_PF_CONSOLE_PORT 0 /* PSC1 */
#endif /* __PLATFORMS_LITE5200_H__ */
arch/ppc/platforms/mpc5200.c 0 → 100644
View file @ 147cd454
/*
* arch/ppc/platforms/mpc5200.c
*
* OCP Definitions for the boards based on MPC5200 processor. Contains
* definitions for every common peripherals. (Mostly all but PSCs)
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Copyright 2004 Sylvain Munaut <tnt@246tNt.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <asm/ocp.h>
#include <asm/mpc52xx.h>
/* Here is the core_ocp struct.
* With all the devices common to all board. Even if port multiplexing is
* not setup for them (if the user don't want them, just don't select the
* config option). The potentially conflicting devices (like PSCs) goes in
* board specific file.
*/
struct ocp_def core_ocp[] = {
{ /* Terminating entry */
.vendor = OCP_VENDOR_INVALID
}
};
arch/ppc/syslib/Makefile
View file @ 147cd454
...@@ -86,3 +86,4 @@ obj-$(CONFIG_85xx) += open_pic.o ppc85xx_common.o ppc85xx_setup.o ...@@ -86,3 +86,4 @@ obj-$(CONFIG_85xx) += open_pic.o ppc85xx_common.o ppc85xx_setup.o
ifeq ($(CONFIG_85xx),y) ifeq ($(CONFIG_85xx),y)
obj-$(CONFIG_PCI) += indirect_pci.o pci_auto.o obj-$(CONFIG_PCI) += indirect_pci.o pci_auto.o
endif endif
obj-$(CONFIG_PPC_MPC52xx) += mpc52xx_setup.o mpc52xx_pic.o
arch/ppc/syslib/mpc52xx_pic.c 0 → 100644
View file @ 147cd454
/*
* arch/ppc/syslib/mpc52xx_pic.c
*
* Programmable Interrupt Controller functions for the Freescale MPC52xx
* embedded CPU.
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Based on (well, mostly copied from) the code from the 2.4 kernel by
* Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg.
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 Montavista Software, Inc
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/stddef.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/stddef.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/mpc52xx.h>
static struct mpc52xx_intr *intr;
static struct mpc52xx_sdma *sdma;
static void
mpc52xx_ic_disable(unsigned int irq)
{
u32 val;
if (irq == MPC52xx_IRQ0) {
val = in_be32(&intr->ctrl);
val &= ~(1 << 11);
out_be32(&intr->ctrl, val);
}
else if (irq < MPC52xx_IRQ1) {
BUG();
}
else if (irq <= MPC52xx_IRQ3) {
val = in_be32(&intr->ctrl);
val &= ~(1 << (10 - (irq - MPC52xx_IRQ1)));
out_be32(&intr->ctrl, val);
}
else if (irq < MPC52xx_SDMA_IRQ_BASE) {
val = in_be32(&intr->main_mask);
val |= 1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE));
out_be32(&intr->main_mask, val);
}
else if (irq < MPC52xx_PERP_IRQ_BASE) {
val = in_be32(&sdma->IntMask);
val |= 1 << (irq - MPC52xx_SDMA_IRQ_BASE);
out_be32(&sdma->IntMask, val);
}
else {
val = in_be32(&intr->per_mask);
val |= 1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE));
out_be32(&intr->per_mask, val);
}
}
static void
mpc52xx_ic_enable(unsigned int irq)
{
u32 val;
if (irq == MPC52xx_IRQ0) {
val = in_be32(&intr->ctrl);
val |= 1 << 11;
out_be32(&intr->ctrl, val);
}
else if (irq < MPC52xx_IRQ1) {
BUG();
}
else if (irq <= MPC52xx_IRQ3) {
val = in_be32(&intr->ctrl);
val |= 1 << (10 - (irq - MPC52xx_IRQ1));
out_be32(&intr->ctrl, val);
}
else if (irq < MPC52xx_SDMA_IRQ_BASE) {
val = in_be32(&intr->main_mask);
val &= ~(1 << (16 - (irq - MPC52xx_MAIN_IRQ_BASE)));
out_be32(&intr->main_mask, val);
}
else if (irq < MPC52xx_PERP_IRQ_BASE) {
val = in_be32(&sdma->IntMask);
val &= ~(1 << (irq - MPC52xx_SDMA_IRQ_BASE));
out_be32(&sdma->IntMask, val);
}
else {
val = in_be32(&intr->per_mask);
val &= ~(1 << (31 - (irq - MPC52xx_PERP_IRQ_BASE)));
out_be32(&intr->per_mask, val);
}
}
static void
mpc52xx_ic_ack(unsigned int irq)
{
u32 val;
/*
* Only some irqs are reset here, others in interrupting hardware.
*/
switch (irq) {
case MPC52xx_IRQ0:
val = in_be32(&intr->ctrl);
val |= 0x08000000;
out_be32(&intr->ctrl, val);
break;
case MPC52xx_CCS_IRQ:
val = in_be32(&intr->enc_status);
val |= 0x00000400;
out_be32(&intr->enc_status, val);
break;
case MPC52xx_IRQ1:
val = in_be32(&intr->ctrl);
val |= 0x04000000;
out_be32(&intr->ctrl, val);
break;
case MPC52xx_IRQ2:
val = in_be32(&intr->ctrl);
val |= 0x02000000;
out_be32(&intr->ctrl, val);
break;
case MPC52xx_IRQ3:
val = in_be32(&intr->ctrl);
val |= 0x01000000;
out_be32(&intr->ctrl, val);
break;
default:
if (irq >= MPC52xx_SDMA_IRQ_BASE
&& irq < (MPC52xx_SDMA_IRQ_BASE + MPC52xx_SDMA_IRQ_NUM)) {
out_be32(&sdma->IntPend,
1 << (irq - MPC52xx_SDMA_IRQ_BASE));
}
break;
}
}
static void
mpc52xx_ic_disable_and_ack(unsigned int irq)
{
mpc52xx_ic_disable(irq);
mpc52xx_ic_ack(irq);
}
static void
mpc52xx_ic_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
mpc52xx_ic_enable(irq);
}
static struct hw_interrupt_type mpc52xx_ic = {
"MPC52xx",
NULL, /* startup(irq) */
NULL, /* shutdown(irq) */
mpc52xx_ic_enable, /* enable(irq) */
mpc52xx_ic_disable, /* disable(irq) */
mpc52xx_ic_disable_and_ack, /* disable_and_ack(irq) */
mpc52xx_ic_end, /* end(irq) */
0 /* set_affinity(irq, cpumask) SMP. */
};
void __init
mpc52xx_init_irq(void)
{
int i;
/* Remap the necessary zones */
intr = (struct mpc52xx_intr *)
ioremap(MPC52xx_INTR, sizeof(struct mpc52xx_intr));
sdma = (struct mpc52xx_sdma *)
ioremap(MPC52xx_SDMA, sizeof(struct mpc52xx_sdma));
if ((intr==NULL) || (sdma==NULL))
panic("Can't ioremap PIC/SDMA register for init_irq !");
/* Disable all interrupt sources. */
out_be32(&sdma->IntPend, 0xffffffff); /* 1 means clear pending */
out_be32(&sdma->IntMask, 0xffffffff); /* 1 means disabled */
out_be32(&intr->per_mask, 0x7ffffc00); /* 1 means disabled */
out_be32(&intr->main_mask, 0x00010fff); /* 1 means disabled */
out_be32(&intr->ctrl,
0x0f000000 | /* clear IRQ 0-3 */
0x00c00000 | /* IRQ0: level-sensitive, active low */
0x00001000 | /* MEE master external enable */
0x00000000 | /* 0 means disable IRQ 0-3 */
0x00000001); /* CEb route critical normally */
/* Zero a bunch of the priority settings. */
out_be32(&intr->per_pri1, 0);
out_be32(&intr->per_pri2, 0);
out_be32(&intr->per_pri3, 0);
out_be32(&intr->main_pri1, 0);
out_be32(&intr->main_pri2, 0);
/* Initialize irq_desc[i].handler's with mpc52xx_ic. */
for (i = 0; i < NR_IRQS; i++) {
irq_desc[i].handler = &mpc52xx_ic;
irq_desc[i].status = IRQ_LEVEL;
}
}
int
mpc52xx_get_irq(struct pt_regs *regs)
{
u32 status;
int irq = -1;
status = in_be32(&intr->enc_status);
if (status & 0x00000400) { /* critical */
irq = (status >> 8) & 0x3;
if (irq == 2) /* high priority peripheral */
goto peripheral;
irq += MPC52xx_CRIT_IRQ_BASE;
}
else if (status & 0x00200000) { /* main */
irq = (status >> 16) & 0x1f;
if (irq == 4) /* low priority peripheral */
goto peripheral;
irq += MPC52xx_MAIN_IRQ_BASE;
}
else if (status & 0x20000000) { /* peripheral */
peripheral:
irq = (status >> 24) & 0x1f;
if (irq == 0) { /* bestcomm */
status = in_be32(&sdma->IntPend);
irq = ffs(status) + MPC52xx_SDMA_IRQ_BASE-1;
}
else
irq += MPC52xx_PERP_IRQ_BASE;
}
return irq;
}
arch/ppc/syslib/mpc52xx_setup.c 0 → 100644
View file @ 147cd454
/*
* arch/ppc/syslib/mpc52xx_common.c
*
* Common code for the boards based on Freescale MPC52xx embedded CPU.
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Support for other bootloaders than UBoot by Dale Farnsworth
* <dfarnsworth@mvista.com>
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 Montavista Software, Inc
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/config.h>
#include <asm/time.h>
#include <asm/mpc52xx.h>
#include <asm/mpc52xx_psc.h>
#include <asm/ocp.h>
#include <asm/ppcboot.h>
extern bd_t __res;
static int core_mult[] = { /* CPU Frequency multiplier, taken */
0, 0, 0, 10, 20, 20, 25, 45, /* from the datasheet used to compute */
30, 55, 40, 50, 0, 60, 35, 0, /* CPU frequency from XLB freq and */
30, 25, 65, 10, 70, 20, 75, 45, /* external jumper config */
0, 55, 40, 50, 80, 60, 35, 0
};
void
mpc52xx_restart(char *cmd)
{
struct mpc52xx_gpt* gpt0 = (struct mpc52xx_gpt*) MPC52xx_GPTx(0);
local_irq_disable();
/* Turn on the watchdog and wait for it to expire. It effectively
does a reset */
if (gpt0 != NULL) {
out_be32(&gpt0->count, 0x000000ff);
out_be32(&gpt0->mode, 0x00009004);
} else
printk(KERN_ERR "mpc52xx_restart: Unable to ioremap GPT0 registers, -> looping ...");
while (1);
}
void
mpc52xx_halt(void)
{
local_irq_disable();
while (1);
}
void
mpc52xx_power_off(void)
{
/* By default we don't have any way of shut down.
If a specific board wants to, it can set the power down
code to any hardware implementation dependent code */
mpc52xx_halt();
}
void __init
mpc52xx_set_bat(void)
{
/* Set BAT 2 to map the 0xf0000000 area */
/* This mapping is used during mpc52xx_progress,
* mpc52xx_find_end_of_memory, and UARTs/GPIO access for debug
*/
mb();
mtspr(DBAT2U, 0xf0001ffe);
mtspr(DBAT2L, 0xf000002a);
mb();
}
void __init
mpc52xx_map_io(void)
{
/* Here we only map the MBAR */
io_block_mapping(
MPC52xx_MBAR_VIRT, MPC52xx_MBAR, MPC52xx_MBAR_SIZE, _PAGE_IO);
}
#ifdef CONFIG_SERIAL_TEXT_DEBUG
#ifdef MPC52xx_PF_CONSOLE_PORT
#define MPC52xx_CONSOLE MPC52xx_PSCx(MPC52xx_PF_CONSOLE_PORT)
#else
#error "mpc52xx PSC for console not selected"
#endif
void
mpc52xx_progress(char *s, unsigned short hex)
{
struct mpc52xx_psc *psc = (struct mpc52xx_psc *)MPC52xx_CONSOLE;
char c;
/* Don't we need to disable serial interrupts ? */
while ((c = *s++) != 0) {
if (c == '\n') {
while (!(in_be16(&psc->mpc52xx_psc_status) &
MPC52xx_PSC_SR_TXRDY)) ;
out_8(&psc->mpc52xx_psc_buffer_8, '\r');
}
while (!(in_be16(&psc->mpc52xx_psc_status) &
MPC52xx_PSC_SR_TXRDY)) ;
out_8(&psc->mpc52xx_psc_buffer_8, c);
}
}
#endif /* CONFIG_SERIAL_TEXT_DEBUG */
unsigned long __init
mpc52xx_find_end_of_memory(void)
{
u32 ramsize = __res.bi_memsize;
/*
* if bootloader passed a memsize, just use it
* else get size from sdram config registers
*/
if (ramsize == 0) {
struct mpc52xx_mmap_ctl *mmap_ctl;
u32 sdram_config_0, sdram_config_1;
/* Temp BAT2 mapping active when this is called ! */
mmap_ctl = (struct mpc52xx_mmap_ctl*) MPC52xx_MMAP_CTL;
sdram_config_0 = in_be32(&mmap_ctl->sdram0);
sdram_config_1 = in_be32(&mmap_ctl->sdram1);
if ((sdram_config_0 & 0x1f) >= 0x13)
ramsize = 1 << ((sdram_config_0 & 0xf) + 17);
if (((sdram_config_1 & 0x1f) >= 0x13) &&
((sdram_config_1 & 0xfff00000) == ramsize))
ramsize += 1 << ((sdram_config_1 & 0xf) + 17);
iounmap(mmap_ctl);
}
return ramsize;
}
void __init
mpc52xx_calibrate_decr(void)
{
int current_time, previous_time;
int tbl_start, tbl_end;
unsigned int xlbfreq, cpufreq, ipbfreq, pcifreq, divisor;
xlbfreq = __res.bi_busfreq;
/* if bootloader didn't pass bus frequencies, calculate them */
if (xlbfreq == 0) {
/* Get RTC & Clock manager modules */
struct mpc52xx_rtc *rtc;
struct mpc52xx_cdm *cdm;
rtc = (struct mpc52xx_rtc*)
ioremap(MPC52xx_RTC, sizeof(struct mpc52xx_rtc));
cdm = (struct mpc52xx_cdm*)
ioremap(MPC52xx_CDM, sizeof(struct mpc52xx_cdm));
if ((rtc==NULL) || (cdm==NULL))
panic("Can't ioremap RTC/CDM while computing bus freq");
/* Count bus clock during 1/64 sec */
out_be32(&rtc->dividers, 0x8f1f0000); /* Set RTC 64x faster */
previous_time = in_be32(&rtc->time);
while ((current_time = in_be32(&rtc->time)) == previous_time) ;
tbl_start = get_tbl();
previous_time = current_time;
while ((current_time = in_be32(&rtc->time)) == previous_time) ;
tbl_end = get_tbl();
out_be32(&rtc->dividers, 0xffff0000); /* Restore RTC */
/* Compute all frequency from that & CDM settings */
xlbfreq = (tbl_end - tbl_start) << 8;
cpufreq = (xlbfreq * core_mult[in_be32(&cdm->rstcfg)&0x1f])/10;
ipbfreq = (in_8(&cdm->ipb_clk_sel) & 1) ?
xlbfreq / 2 : xlbfreq;
switch (in_8(&cdm->pci_clk_sel) & 3) {
case 0:
pcifreq = ipbfreq;
break;
case 1:
pcifreq = ipbfreq / 2;
break;
default:
pcifreq = xlbfreq / 4;
break;
}
__res.bi_busfreq = xlbfreq;
__res.bi_intfreq = cpufreq;
__res.bi_ipbfreq = ipbfreq;
__res.bi_pcifreq = pcifreq;
/* Release mapping */
iounmap((void*)rtc);
iounmap((void*)cdm);
}
divisor = 4;
tb_ticks_per_jiffy = xlbfreq / HZ / divisor;
tb_to_us = mulhwu_scale_factor(xlbfreq / divisor, 1000000);
}
void __init
mpc52xx_add_board_devices(struct ocp_def board_ocp[]) {
while (board_ocp->vendor != OCP_VENDOR_INVALID)
if(ocp_add_one_device(board_ocp++))
printk("mpc5200-ocp: Failed to add board device !\n");
}
include/asm-ppc/mpc52xx.h 0 → 100644
View file @ 147cd454
This diff is collapsed.
include/asm-ppc/mpc52xx_psc.h 0 → 100644
View file @ 147cd454
/*
* include/asm-ppc/mpc52xx_psc.h
*
* Definitions of consts/structs to drive the Freescale MPC52xx OnChip
* PSCs. Theses are shared between multiple drivers since a PSC can be
* UART, AC97, IR, I2S, ... So this header is in asm-ppc.
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Based/Extracted from some header of the 2.4 originally written by
* Dale Farnsworth <dfarnsworth@mvista.com>
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 MontaVista, Software, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef __MPC52xx_PSC_H__
#define __MPC52xx_PSC_H__
#include <asm/types.h>
/* Max number of PSCs */
#define MPC52xx_PSC_MAXNUM 6
/* Programmable Serial Controller (PSC) status register bits */
#define MPC52xx_PSC_SR_CDE 0x0080
#define MPC52xx_PSC_SR_RXRDY 0x0100
#define MPC52xx_PSC_SR_RXFULL 0x0200
#define MPC52xx_PSC_SR_TXRDY 0x0400
#define MPC52xx_PSC_SR_TXEMP 0x0800
#define MPC52xx_PSC_SR_OE 0x1000
#define MPC52xx_PSC_SR_PE 0x2000
#define MPC52xx_PSC_SR_FE 0x4000
#define MPC52xx_PSC_SR_RB 0x8000
/* PSC Command values */
#define MPC52xx_PSC_RX_ENABLE 0x0001
#define MPC52xx_PSC_RX_DISABLE 0x0002
#define MPC52xx_PSC_TX_ENABLE 0x0004
#define MPC52xx_PSC_TX_DISABLE 0x0008
#define MPC52xx_PSC_SEL_MODE_REG_1 0x0010
#define MPC52xx_PSC_RST_RX 0x0020
#define MPC52xx_PSC_RST_TX 0x0030
#define MPC52xx_PSC_RST_ERR_STAT 0x0040
#define MPC52xx_PSC_RST_BRK_CHG_INT 0x0050
#define MPC52xx_PSC_START_BRK 0x0060
#define MPC52xx_PSC_STOP_BRK 0x0070
/* PSC TxRx FIFO status bits */
#define MPC52xx_PSC_RXTX_FIFO_ERR 0x0040
#define MPC52xx_PSC_RXTX_FIFO_UF 0x0020
#define MPC52xx_PSC_RXTX_FIFO_OF 0x0010
#define MPC52xx_PSC_RXTX_FIFO_FR 0x0008
#define MPC52xx_PSC_RXTX_FIFO_FULL 0x0004
#define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002
#define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001
/* PSC interrupt mask bits */
#define MPC52xx_PSC_IMR_TXRDY 0x0100
#define MPC52xx_PSC_IMR_RXRDY 0x0200
#define MPC52xx_PSC_IMR_DB 0x0400
#define MPC52xx_PSC_IMR_IPC 0x8000
/* PSC input port change bit */
#define MPC52xx_PSC_CTS 0x01
#define MPC52xx_PSC_DCD 0x02
#define MPC52xx_PSC_D_CTS 0x10
#define MPC52xx_PSC_D_DCD 0x20
/* PSC mode fields */
#define MPC52xx_PSC_MODE_5_BITS 0x00
#define MPC52xx_PSC_MODE_6_BITS 0x01
#define MPC52xx_PSC_MODE_7_BITS 0x02
#define MPC52xx_PSC_MODE_8_BITS 0x03
#define MPC52xx_PSC_MODE_BITS_MASK 0x03
#define MPC52xx_PSC_MODE_PAREVEN 0x00
#define MPC52xx_PSC_MODE_PARODD 0x04
#define MPC52xx_PSC_MODE_PARFORCE 0x08
#define MPC52xx_PSC_MODE_PARNONE 0x10
#define MPC52xx_PSC_MODE_ERR 0x20
#define MPC52xx_PSC_MODE_FFULL 0x40
#define MPC52xx_PSC_MODE_RXRTS 0x80
#define MPC52xx_PSC_MODE_ONE_STOP_5_BITS 0x00
#define MPC52xx_PSC_MODE_ONE_STOP 0x07
#define MPC52xx_PSC_MODE_TWO_STOP 0x0f
#define MPC52xx_PSC_RFNUM_MASK 0x01ff
/* Structure of the hardware registers */
struct mpc52xx_psc {
volatile u8 mode; /* PSC + 0x00 */
volatile u8 reserved0[3];
union { /* PSC + 0x04 */
volatile u16 status;
volatile u16 clock_select;
} sr_csr;
#define mpc52xx_psc_status sr_csr.status
#define mpc52xx_psc_clock_select sr_csr.clock_select
volatile u16 reserved1;
volatile u8 command; /* PSC + 0x08 */
volatile u8 reserved2[3];
union { /* PSC + 0x0c */
volatile u8 buffer_8;
volatile u16 buffer_16;
volatile u32 buffer_32;
} buffer;
#define mpc52xx_psc_buffer_8 buffer.buffer_8
#define mpc52xx_psc_buffer_16 buffer.buffer_16
#define mpc52xx_psc_buffer_32 buffer.buffer_32
union { /* PSC + 0x10 */
volatile u8 ipcr;
volatile u8 acr;
} ipcr_acr;
#define mpc52xx_psc_ipcr ipcr_acr.ipcr
#define mpc52xx_psc_acr ipcr_acr.acr
volatile u8 reserved3[3];
union { /* PSC + 0x14 */
volatile u16 isr;
volatile u16 imr;
} isr_imr;
#define mpc52xx_psc_isr isr_imr.isr
#define mpc52xx_psc_imr isr_imr.imr
volatile u16 reserved4;
volatile u8 ctur; /* PSC + 0x18 */
volatile u8 reserved5[3];
volatile u8 ctlr; /* PSC + 0x1c */
volatile u8 reserved6[3];
volatile u16 ccr; /* PSC + 0x20 */
volatile u8 reserved7[14];
volatile u8 ivr; /* PSC + 0x30 */
volatile u8 reserved8[3];
volatile u8 ip; /* PSC + 0x34 */
volatile u8 reserved9[3];
volatile u8 op1; /* PSC + 0x38 */
volatile u8 reserved10[3];
volatile u8 op0; /* PSC + 0x3c */
volatile u8 reserved11[3];
volatile u32 sicr; /* PSC + 0x40 */
volatile u8 ircr1; /* PSC + 0x44 */
volatile u8 reserved13[3];
volatile u8 ircr2; /* PSC + 0x44 */
volatile u8 reserved14[3];
volatile u8 irsdr; /* PSC + 0x4c */
volatile u8 reserved15[3];
volatile u8 irmdr; /* PSC + 0x50 */
volatile u8 reserved16[3];
volatile u8 irfdr; /* PSC + 0x54 */
volatile u8 reserved17[3];
volatile u16 rfnum; /* PSC + 0x58 */
volatile u16 reserved18;
volatile u16 tfnum; /* PSC + 0x5c */
volatile u16 reserved19;
volatile u32 rfdata; /* PSC + 0x60 */
volatile u16 rfstat; /* PSC + 0x64 */
volatile u16 reserved20;
volatile u8 rfcntl; /* PSC + 0x68 */
volatile u8 reserved21[5];
volatile u16 rfalarm; /* PSC + 0x6e */
volatile u16 reserved22;
volatile u16 rfrptr; /* PSC + 0x72 */
volatile u16 reserved23;
volatile u16 rfwptr; /* PSC + 0x76 */
volatile u16 reserved24;
volatile u16 rflrfptr; /* PSC + 0x7a */
volatile u16 reserved25;
volatile u16 rflwfptr; /* PSC + 0x7e */
volatile u32 tfdata; /* PSC + 0x80 */
volatile u16 tfstat; /* PSC + 0x84 */
volatile u16 reserved26;
volatile u8 tfcntl; /* PSC + 0x88 */
volatile u8 reserved27[5];
volatile u16 tfalarm; /* PSC + 0x8e */
volatile u16 reserved28;
volatile u16 tfrptr; /* PSC + 0x92 */
volatile u16 reserved29;
volatile u16 tfwptr; /* PSC + 0x96 */
volatile u16 reserved30;
volatile u16 tflrfptr; /* PSC + 0x9a */
volatile u16 reserved31;
volatile u16 tflwfptr; /* PSC + 0x9e */
};
#endif /* __MPC52xx_PSC_H__ */
include/asm-ppc/ocp_ids.h
View file @ 147cd454
...@@ -42,6 +42,7 @@ ...@@ -42,6 +42,7 @@
#define OCP_FUNC_16550 0x0031 #define OCP_FUNC_16550 0x0031
#define OCP_FUNC_IIC 0x0032 #define OCP_FUNC_IIC 0x0032
#define OCP_FUNC_USB 0x0033 #define OCP_FUNC_USB 0x0033
#define OCP_FUNC_PSC_UART 0x0034
/* Memory devices 0x0090 - 0x009F */ /* Memory devices 0x0090 - 0x009F */
#define OCP_FUNC_MAL 0x0090 #define OCP_FUNC_MAL 0x0090
......
include/asm-ppc/ppcboot.h
View file @ 147cd454
...@@ -54,6 +54,9 @@ typedef struct bd_info { ...@@ -54,6 +54,9 @@ typedef struct bd_info {
unsigned long bi_sramsize; /* size of SRAM memory */ unsigned long bi_sramsize; /* size of SRAM memory */
#if defined(CONFIG_8xx) || defined(CONFIG_CPM2) || defined(CONFIG_85xx) #if defined(CONFIG_8xx) || defined(CONFIG_CPM2) || defined(CONFIG_85xx)
unsigned long bi_immr_base; /* base of IMMR register */ unsigned long bi_immr_base; /* base of IMMR register */
#endif
#if defined(CONFIG_PPC_MPC52xx)
unsigned long bi_mbar_base; /* base of internal registers */
#endif #endif
unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */ unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */
unsigned long bi_ip_addr; /* IP Address */ unsigned long bi_ip_addr; /* IP Address */
...@@ -66,6 +69,10 @@ typedef struct bd_info { ...@@ -66,6 +69,10 @@ typedef struct bd_info {
unsigned long bi_brgfreq; /* BRG_CLK Freq, in MHz */ unsigned long bi_brgfreq; /* BRG_CLK Freq, in MHz */
unsigned long bi_sccfreq; /* SCC_CLK Freq, in MHz */ unsigned long bi_sccfreq; /* SCC_CLK Freq, in MHz */
unsigned long bi_vco; /* VCO Out from PLL, in MHz */ unsigned long bi_vco; /* VCO Out from PLL, in MHz */
#endif
#if defined(CONFIG_PPC_MPC52xx)
unsigned long bi_ipbfreq; /* IPB Bus Freq, in MHz */
unsigned long bi_pcifreq; /* PCI Bus Freq, in MHz */
#endif #endif
unsigned long bi_baudrate; /* Console Baudrate */ unsigned long bi_baudrate; /* Console Baudrate */
#if defined(CONFIG_405GP) #if defined(CONFIG_405GP)
......
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