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authorVitaly Bordug <vbordug@ru.mvista.com>2007-01-24 22:41:42 +0300
committerPaul Mackerras <paulus@samba.org>2007-02-07 14:03:17 +1100
commitdf34403dcaacef541a67c955aebc37c51f53ca7c (patch)
tree9d4159a85569a457a57f1ac352c373dd7d7a82ba /arch/powerpc/platforms/8xx
parentf2a0bd3753dad7ea4605ebd5435716b39e9f92bb (diff)
[POWERPC] 8xx: Add mpc885ads support and common mpc8xx files
This adds the core 8xx stuff and specifically mpc885ads board-specific bits to arch/powerpc. Respective Kconfig has been cleaned up from the stuff not yet ported over to avoid confusion. Updated and cleaned version. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/8xx')
-rw-r--r--arch/powerpc/platforms/8xx/Kconfig300
-rw-r--r--arch/powerpc/platforms/8xx/Makefile5
-rw-r--r--arch/powerpc/platforms/8xx/m8xx_setup.c303
-rw-r--r--arch/powerpc/platforms/8xx/mpc885ads.h95
-rw-r--r--arch/powerpc/platforms/8xx/mpc885ads_setup.c387
5 files changed, 833 insertions, 257 deletions
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index c8c0ba3cf8e8..beea6834bb7e 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -1,105 +1,16 @@
+menu "Platform support"
+ depends on PPC_8xx
+
config FADS
bool
+config CPM1
+ bool
+
choice
prompt "8xx Machine Type"
depends on 8xx
- default RPXLITE
-
-config RPXLITE
- bool "RPX-Lite"
- ---help---
- Single-board computers based around the PowerPC MPC8xx chips and
- intended for embedded applications. The following types are
- supported:
-
- RPX-Lite:
- Embedded Planet RPX Lite. PC104 form-factor SBC based on the MPC823.
-
- RPX-Classic:
- Embedded Planet RPX Classic Low-fat. Credit-card-size SBC based on
- the MPC 860
-
- BSE-IP:
- Bright Star Engineering ip-Engine.
-
- TQM823L:
- TQM850L:
- TQM855L:
- TQM860L:
- MPC8xx based family of mini modules, half credit card size,
- up to 64 MB of RAM, 8 MB Flash, (Fast) Ethernet, 2 x serial ports,
- 2 x CAN bus interface, ...
- Manufacturer: TQ Components, www.tq-group.de
- Date of Release: October (?) 1999
- End of Life: not yet :-)
- URL:
- - module: <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>
- - starter kit: <http://www.denx.de/PDF/STK8xxLHWM201.pdf>
- - images: <http://www.denx.de/embedded-ppc-en.html>
-
- FPS850L:
- FingerPrint Sensor System (based on TQM850L)
- Manufacturer: IKENDI AG, <http://www.ikendi.com/>
- Date of Release: November 1999
- End of life: end 2000 ?
- URL: see TQM850L
-
- IVMS8:
- MPC860 based board used in the "Integrated Voice Mail System",
- Small Version (8 voice channels)
- Manufacturer: Speech Design, <http://www.speech-design.de/>
- Date of Release: December 2000 (?)
- End of life: -
- URL: <http://www.speech-design.de/>
-
- IVML24:
- MPC860 based board used in the "Integrated Voice Mail System",
- Large Version (24 voice channels)
- Manufacturer: Speech Design, <http://www.speech-design.de/>
- Date of Release: March 2001 (?)
- End of life: -
- URL: <http://www.speech-design.de/>
-
- HERMES:
- Hermes-Pro ISDN/LAN router with integrated 8 x hub
- Manufacturer: Multidata Gesellschaft fur Datentechnik und Informatik
- <http://www.multidata.de/>
- Date of Release: 2000 (?)
- End of life: -
- URL: <http://www.multidata.de/english/products/hpro.htm>
-
- IP860:
- VMEBus IP (Industry Pack) carrier board with MPC860
- Manufacturer: MicroSys GmbH, <http://www.microsys.de/>
- Date of Release: ?
- End of life: -
- URL: <http://www.microsys.de/html/ip860.html>
-
- PCU_E:
- PCU = Peripheral Controller Unit, Extended
- Manufacturer: Siemens AG, ICN (Information and Communication Networks)
- <http://www.siemens.de/page/1,3771,224315-1-999_2_226207-0,00.html>
- Date of Release: April 2001
- End of life: August 2001
- URL: n. a.
-
-config RPXCLASSIC
- bool "RPX-Classic"
- help
- The RPX-Classic is a single-board computer based on the Motorola
- MPC860. It features 16MB of DRAM and a variable amount of flash,
- I2C EEPROM, thermal monitoring, a PCMCIA slot, a DIP switch and two
- LEDs. Variants with Ethernet ports exist. Say Y here to support it
- directly.
-
-config BSEIP
- bool "BSE-IP"
- help
- Say Y here to support the Bright Star Engineering ipEngine SBC.
- This is a credit-card-sized device featuring a MPC823 processor,
- 26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
- controller, and two RS232 ports.
+ default MPC885ADS
config MPC8XXFADS
bool "FADS"
@@ -107,110 +18,58 @@ config MPC8XXFADS
config MPC86XADS
bool "MPC86XADS"
+ select CPM1
help
MPC86x Application Development System by Freescale Semiconductor.
The MPC86xADS is meant to serve as a platform for s/w and h/w
development around the MPC86X processor families.
- select FADS
config MPC885ADS
bool "MPC885ADS"
+ select CPM1
help
Freescale Semiconductor MPC885 Application Development System (ADS).
Also known as DUET.
The MPC885ADS is meant to serve as a platform for s/w and h/w
development around the MPC885 processor family.
-config TQM823L
- bool "TQM823L"
- help
- Say Y here to support the TQM823L, one of an MPC8xx-based family of
- mini SBCs (half credit-card size) from TQ Components first released
- in late 1999. Technical references are at
- <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
- <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
- <http://www.denx.de/embedded-ppc-en.html>.
-
-config TQM850L
- bool "TQM850L"
- help
- Say Y here to support the TQM850L, one of an MPC8xx-based family of
- mini SBCs (half credit-card size) from TQ Components first released
- in late 1999. Technical references are at
- <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
- <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
- <http://www.denx.de/embedded-ppc-en.html>.
-
-config TQM855L
- bool "TQM855L"
- help
- Say Y here to support the TQM855L, one of an MPC8xx-based family of
- mini SBCs (half credit-card size) from TQ Components first released
- in late 1999. Technical references are at
- <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
- <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
- <http://www.denx.de/embedded-ppc-en.html>.
-
-config TQM860L
- bool "TQM860L"
- help
- Say Y here to support the TQM860L, one of an MPC8xx-based family of
- mini SBCs (half credit-card size) from TQ Components first released
- in late 1999. Technical references are at
- <http://www.denx.de/PDF/TQM8xxLHWM201.pdf>, and
- <http://www.denx.de/PDF/STK8xxLHWM201.pdf>, and an image at
- <http://www.denx.de/embedded-ppc-en.html>.
-
-config FPS850L
- bool "FPS850L"
-
-config IVMS8
- bool "IVMS8"
- help
- Say Y here to support the Integrated Voice-Mail Small 8-channel SBC
- from Speech Design, released March 2001. The manufacturer's website
- is at <http://www.speech-design.de/>.
-
-config IVML24
- bool "IVML24"
- help
- Say Y here to support the Integrated Voice-Mail Large 24-channel SBC
- from Speech Design, released March 2001. The manufacturer's website
- is at <http://www.speech-design.de/>.
-
-config HERMES_PRO
- bool "HERMES"
-
-config IP860
- bool "IP860"
-
-config LWMON
- bool "LWMON"
-
-config PCU_E
- bool "PCU_E"
-
-config CCM
- bool "CCM"
-
-config LANTEC
- bool "LANTEC"
+endchoice
-config MBX
- bool "MBX"
- help
- MBX is a line of Motorola single-board computer based around the
- MPC821 and MPC860 processors, and intended for embedded-controller
- applications. Say Y here to support these boards directly.
+menu "Freescale Ethernet driver platform-specific options"
+ depends on (FS_ENET && MPC885ADS)
+
+ config MPC8xx_SECOND_ETH
+ bool "Second Ethernet channel"
+ depends on MPC885ADS
+ default y
+ help
+ This enables support for second Ethernet on MPC885ADS and MPC86xADS boards.
+ The latter will use SCC1, for 885ADS you can select it below.
+
+ choice
+ prompt "Second Ethernet channel"
+ depends on MPC8xx_SECOND_ETH
+ default MPC8xx_SECOND_ETH_FEC2
+
+ config MPC8xx_SECOND_ETH_FEC2
+ bool "FEC2"
+ depends on MPC885ADS
+ help
+ Enable FEC2 to serve as 2-nd Ethernet channel. Note that SMC2
+ (often 2-nd UART) will not work if this is enabled.
+
+ config MPC8xx_SECOND_ETH_SCC3
+ bool "SCC3"
+ depends on MPC885ADS
+ help
+ Enable SCC3 to serve as 2-nd Ethernet channel. Note that SMC1
+ (often 1-nd UART) will not work if this is enabled.
+
+ endchoice
-config WINCEPT
- bool "WinCept"
- help
- The Wincept 100/110 is a Motorola single-board computer based on the
- MPC821 PowerPC, introduced in 1998 and designed to be used in
- thin-client machines. Say Y to support it directly.
+endmenu
-endchoice
+endmenu
#
# MPC8xx Communication options
@@ -219,79 +78,6 @@ endchoice
menu "MPC8xx CPM Options"
depends on 8xx
-config SCC_ENET
- bool "CPM SCC Ethernet"
- depends on NET_ETHERNET
- help
- Enable Ethernet support via the Motorola MPC8xx serial
- communications controller.
-
-choice
- prompt "SCC used for Ethernet"
- depends on SCC_ENET
- default SCC1_ENET
-
-config SCC1_ENET
- bool "SCC1"
- help
- Use MPC8xx serial communications controller 1 to drive Ethernet
- (default).
-
-config SCC2_ENET
- bool "SCC2"
- help
- Use MPC8xx serial communications controller 2 to drive Ethernet.
-
-config SCC3_ENET
- bool "SCC3"
- help
- Use MPC8xx serial communications controller 3 to drive Ethernet.
-
-endchoice
-
-config FEC_ENET
- bool "860T FEC Ethernet"
- depends on NET_ETHERNET
- help
- Enable Ethernet support via the Fast Ethernet Controller (FCC) on
- the Motorola MPC8260.
-
-config USE_MDIO
- bool "Use MDIO for PHY configuration"
- depends on FEC_ENET
- help
- On some boards the hardware configuration of the ethernet PHY can be
- used without any software interaction over the MDIO interface, so
- all MII code can be omitted. Say N here if unsure or if you don't
- need link status reports.
-
-config FEC_AM79C874
- bool "Support AMD79C874 PHY"
- depends on USE_MDIO
-
-config FEC_LXT970
- bool "Support LXT970 PHY"
- depends on USE_MDIO
-
-config FEC_LXT971
- bool "Support LXT971 PHY"
- depends on USE_MDIO
-
-config FEC_QS6612
- bool "Support QS6612 PHY"
- depends on USE_MDIO
-
-config ENET_BIG_BUFFERS
- bool "Use Big CPM Ethernet Buffers"
- depends on SCC_ENET || FEC_ENET
- help
- Allocate large buffers for MPC8xx Ethernet. Increases throughput
- and decreases the likelihood of dropped packets, but costs memory.
-
-config HTDMSOUND
- bool "Embedded Planet HIOX Audio"
- depends on SOUND=y
-
# This doesn't really belong here, but it is convenient to ask
# 8xx specific questions.
comment "Generic MPC8xx Options"
diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile
new file mode 100644
index 000000000000..1b59ffa92521
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the PowerPC 8xx linux kernel.
+#
+obj-$(CONFIG_PPC_8xx) += m8xx_setup.o
+obj-$(CONFIG_MPC885ADS) += mpc885ads_setup.o
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
new file mode 100644
index 000000000000..9ed7125f0150
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 1995 Linus Torvalds
+ * Adapted from 'alpha' version by Gary Thomas
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * Modified for MBX using prep/chrp/pmac functions by Dan (dmalek@jlc.net)
+ * Further modified for generic 8xx by Dan.
+ */
+
+/*
+ * bootup setup stuff..
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/a.out.h>
+#include <linux/tty.h>
+#include <linux/major.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/ioport.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/time.h>
+#include <linux/rtc.h>
+
+#include <asm/mmu.h>
+#include <asm/reg.h>
+#include <asm/residual.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/mpc8xx.h>
+#include <asm/8xx_immap.h>
+#include <asm/machdep.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/prom.h>
+#include <asm/fs_pd.h>
+#include <mm/mmu_decl.h>
+
+#include "sysdev/mpc8xx_pic.h"
+
+void m8xx_calibrate_decr(void);
+extern void m8xx_wdt_handler_install(bd_t *bp);
+extern int cpm_pic_init(void);
+extern int cpm_get_irq(void);
+
+/* A place holder for time base interrupts, if they are ever enabled. */
+irqreturn_t timebase_interrupt(int irq, void * dev)
+{
+ printk ("timebase_interrupt()\n");
+
+ return IRQ_HANDLED;
+}
+
+static struct irqaction tbint_irqaction = {
+ .handler = timebase_interrupt,
+ .mask = CPU_MASK_NONE,
+ .name = "tbint",
+};
+
+/* per-board overridable init_internal_rtc() function. */
+void __init __attribute__ ((weak))
+init_internal_rtc(void)
+{
+ sit8xx_t *sys_tmr = (sit8xx_t *) immr_map(im_sit);
+
+ /* Disable the RTC one second and alarm interrupts. */
+ clrbits16(&sys_tmr->sit_rtcsc, (RTCSC_SIE | RTCSC_ALE));
+
+ /* Enable the RTC */
+ setbits16(&sys_tmr->sit_rtcsc, (RTCSC_RTF | RTCSC_RTE));
+ immr_unmap(sys_tmr);
+}
+
+static int __init get_freq(char *name, unsigned long *val)
+{
+ struct device_node *cpu;
+ unsigned int *fp;
+ int found = 0;
+
+ /* The cpu node should have timebase and clock frequency properties */
+ cpu = of_find_node_by_type(NULL, "cpu");
+
+ if (cpu) {
+ fp = (unsigned int *)get_property(cpu, name, NULL);
+ if (fp) {
+ found = 1;
+ *val = *fp++;
+ }
+
+ of_node_put(cpu);
+ }
+
+ return found;
+}
+
+/* The decrementer counts at the system (internal) clock frequency divided by
+ * sixteen, or external oscillator divided by four. We force the processor
+ * to use system clock divided by sixteen.
+ */
+void __init mpc8xx_calibrate_decr(void)
+{
+ struct device_node *cpu;
+ cark8xx_t *clk_r1;
+ car8xx_t *clk_r2;
+ sitk8xx_t *sys_tmr1;
+ sit8xx_t *sys_tmr2;
+ int irq, virq;
+
+ clk_r1 = (cark8xx_t *) immr_map(im_clkrstk);
+
+ /* Unlock the SCCR. */
+ out_be32(&clk_r1->cark_sccrk, ~KAPWR_KEY);
+ out_be32(&clk_r1->cark_sccrk, KAPWR_KEY);
+ immr_unmap(clk_r1);
+
+ /* Force all 8xx processors to use divide by 16 processor clock. */
+ clk_r2 = (car8xx_t *) immr_map(im_clkrst);
+ setbits32(&clk_r2->car_sccr, 0x02000000);
+ immr_unmap(clk_r2);
+
+ /* Processor frequency is MHz.
+ */
+ ppc_tb_freq = 50000000;
+ if (!get_freq("bus-frequency", &ppc_tb_freq)) {
+ printk(KERN_ERR "WARNING: Estimating decrementer frequency "
+ "(not found)\n");
+ }
+ ppc_tb_freq /= 16;
+ ppc_proc_freq = 50000000;
+ if (!get_freq("clock-frequency", &ppc_proc_freq))
+ printk(KERN_ERR "WARNING: Estimating processor frequency"
+ "(not found)\n");
+
+ printk("Decrementer Frequency = 0x%lx\n", ppc_tb_freq);
+
+ /* Perform some more timer/timebase initialization. This used
+ * to be done elsewhere, but other changes caused it to get
+ * called more than once....that is a bad thing.
+ *
+ * First, unlock all of the registers we are going to modify.
+ * To protect them from corruption during power down, registers
+ * that are maintained by keep alive power are "locked". To
+ * modify these registers we have to write the key value to
+ * the key location associated with the register.
+ * Some boards power up with these unlocked, while others
+ * are locked. Writing anything (including the unlock code?)
+ * to the unlocked registers will lock them again. So, here
+ * we guarantee the registers are locked, then we unlock them
+ * for our use.
+ */
+ sys_tmr1 = (sitk8xx_t *) immr_map(im_sitk);
+ out_be32(&sys_tmr1->sitk_tbscrk, ~KAPWR_KEY);
+ out_be32(&sys_tmr1->sitk_rtcsck, ~KAPWR_KEY);
+ out_be32(&sys_tmr1->sitk_tbk, ~KAPWR_KEY);
+ out_be32(&sys_tmr1->sitk_tbscrk, KAPWR_KEY);
+ out_be32(&sys_tmr1->sitk_rtcsck, KAPWR_KEY);
+ out_be32(&sys_tmr1->sitk_tbk, KAPWR_KEY);
+ immr_unmap(sys_tmr1);
+
+ init_internal_rtc();
+
+ /* Enabling the decrementer also enables the timebase interrupts
+ * (or from the other point of view, to get decrementer interrupts
+ * we have to enable the timebase). The decrementer interrupt
+ * is wired into the vector table, nothing to do here for that.
+ */
+ cpu = of_find_node_by_type(NULL, "cpu");
+ virq= irq_of_parse_and_map(cpu, 0);
+ irq = irq_map[virq].hwirq;
+
+ sys_tmr2 = (sit8xx_t *) immr_map(im_sit);
+ out_be16(&sys_tmr2->sit_tbscr, ((1 << (7 - (irq/2))) << 8) |
+ (TBSCR_TBF | TBSCR_TBE));
+ immr_unmap(sys_tmr2);
+
+ if (setup_irq(virq, &tbint_irqaction))
+ panic("Could not allocate timer IRQ!");
+
+#ifdef CONFIG_8xx_WDT
+ /* Install watchdog timer handler early because it might be
+ * already enabled by the bootloader
+ */
+ m8xx_wdt_handler_install(binfo);
+#endif
+}
+
+/* The RTC on the MPC8xx is an internal register.
+ * We want to protect this during power down, so we need to unlock,
+ * modify, and re-lock.
+ */
+
+int mpc8xx_set_rtc_time(struct rtc_time *tm)
+{
+ sitk8xx_t *sys_tmr1;
+ sit8xx_t *sys_tmr2;
+ int time;
+
+ sys_tmr1 = (sitk8xx_t *) immr_map(im_sitk);
+ sys_tmr2 = (sit8xx_t *) immr_map(im_sit);
+ time = mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+
+ out_be32(&sys_tmr1->sitk_rtck, KAPWR_KEY);
+ out_be32(&sys_tmr2->sit_rtc, time);
+ out_be32(&sys_tmr1->sitk_rtck, ~KAPWR_KEY);
+
+ immr_unmap(sys_tmr2);
+ immr_unmap(sys_tmr1);
+ return 0;
+}
+
+void mpc8xx_get_rtc_time(struct rtc_time *tm)
+{
+ unsigned long data;
+ sit8xx_t *sys_tmr = (sit8xx_t *) immr_map(im_sit);
+
+ /* Get time from the RTC. */
+ data = in_be32(&sys_tmr->sit_rtc);
+ to_tm(data, tm);
+ tm->tm_year -= 1900;
+ tm->tm_mon -= 1;
+ immr_unmap(sys_tmr);
+ return;
+}
+
+void mpc8xx_restart(char *cmd)
+{
+ __volatile__ unsigned char dummy;
+ car8xx_t * clk_r = (car8xx_t *) immr_map(im_clkrst);
+
+
+ local_irq_disable();
+
+ setbits32(&clk_r->car_plprcr, 0x00000080);
+ /* Clear the ME bit in MSR to cause checkstop on machine check
+ */
+ mtmsr(mfmsr() & ~0x1000);
+
+ dummy = in_8(&clk_r->res[0]);
+ printk("Restart failed\n");
+ while(1);
+}
+
+void mpc8xx_show_cpuinfo(struct seq_file *m)
+{
+ struct device_node *root;
+ uint memsize = total_memory;
+ const char *model = "";
+
+ seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
+
+ root = of_find_node_by_path("/");
+ if (root)
+ model = get_property(root, "model", NULL);
+ seq_printf(m, "Machine\t\t: %s\n", model);
+ of_node_put(root);
+
+ seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
+}
+
+static void cpm_cascade(unsigned int irq, struct irq_desc *desc)
+{
+ int cascade_irq;
+
+ if ((cascade_irq = cpm_get_irq()) >= 0) {
+ struct irq_desc *cdesc = irq_desc + cascade_irq;
+
+ generic_handle_irq(cascade_irq);
+ cdesc->chip->eoi(cascade_irq);
+ }
+ desc->chip->eoi(irq);
+}
+
+/* Initialize the internal interrupt controller. The number of
+ * interrupts supported can vary with the processor type, and the
+ * 82xx family can have up to 64.
+ * External interrupts can be either edge or level triggered, and
+ * need to be initialized by the appropriate driver.
+ */
+void __init m8xx_pic_init(void)
+{
+ int irq;
+
+ if (mpc8xx_pic_init()) {
+ printk(KERN_ERR "Failed interrupt 8xx controller initialization\n");
+ return;
+ }
+
+ irq = cpm_pic_init();
+ if (irq != NO_IRQ)
+ set_irq_chained_handler(irq, cpm_cascade);
+}
diff --git a/arch/powerpc/platforms/8xx/mpc885ads.h b/arch/powerpc/platforms/8xx/mpc885ads.h
new file mode 100644
index 000000000000..30cbebfe84c5
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/mpc885ads.h
@@ -0,0 +1,95 @@
+/*
+ * A collection of structures, addresses, and values associated with
+ * the Freescale MPC885ADS board.
+ * Copied from the FADS stuff.
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * 2005 (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.
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_MPC885ADS_H__
+#define __ASM_MPC885ADS_H__
+
+#include <asm/ppcboot.h>
+#include <sysdev/fsl_soc.h>
+
+/* U-Boot maps BCSR to 0xff080000 */
+#define BCSR_ADDR ((uint)0xff080000)
+#define BCSR_SIZE ((uint)32)
+#define BCSR0 ((uint)(BCSR_ADDR + 0x00))
+#define BCSR1 ((uint)(BCSR_ADDR + 0x04))
+#define BCSR2 ((uint)(BCSR_ADDR + 0x08))
+#define BCSR3 ((uint)(BCSR_ADDR + 0x0c))
+#define BCSR4 ((uint)(BCSR_ADDR + 0x10))
+
+#define CFG_PHYDEV_ADDR ((uint)0xff0a0000)
+#define BCSR5 ((uint)(CFG_PHYDEV_ADDR + 0x300))
+
+#define IMAP_ADDR (get_immrbase())
+#define IMAP_SIZE ((uint)(64 * 1024))
+
+#define MPC8xx_CPM_OFFSET (0x9c0)
+#define CPM_MAP_ADDR (get_immrbase() + MPC8xx_CPM_OFFSET)
+#define CPM_IRQ_OFFSET 16 // for compability with cpm_uart driver
+
+#define PCMCIA_MEM_ADDR (uint)0xff020000)
+#define PCMCIA_MEM_SIZE ((uint)(64 * 1024))
+
+/* Bits of interest in the BCSRs.
+ */
+#define BCSR1_ETHEN ((uint)0x20000000)
+#define BCSR1_IRDAEN ((uint)0x10000000)
+#define BCSR1_RS232EN_1 ((uint)0x01000000)
+#define BCSR1_PCCEN ((uint)0x00800000)
+#define BCSR1_PCCVCC0 ((uint)0x00400000)
+#define BCSR1_PCCVPP0 ((uint)0x00200000)
+#define BCSR1_PCCVPP1 ((uint)0x00100000)
+#define BCSR1_PCCVPP_MASK (BCSR1_PCCVPP0 | BCSR1_PCCVPP1)
+#define BCSR1_RS232EN_2 ((uint)0x00040000)
+#define BCSR1_PCCVCC1 ((uint)0x00010000)
+#define BCSR1_PCCVCC_MASK (BCSR1_PCCVCC0 | BCSR1_PCCVCC1)
+
+#define BCSR4_ETH10_RST ((uint)0x80000000) /* 10Base-T PHY reset*/
+#define BCSR4_USB_LO_SPD ((uint)0x04000000)
+#define BCSR4_USB_VCC ((uint)0x02000000)
+#define BCSR4_USB_FULL_SPD ((uint)0x00040000)
+#define BCSR4_USB_EN ((uint)0x00020000)
+
+#define BCSR5_MII2_EN 0x40
+#define BCSR5_MII2_RST 0x20
+#define BCSR5_T1_RST 0x10
+#define BCSR5_ATM155_RST 0x08
+#define BCSR5_ATM25_RST 0x04
+#define BCSR5_MII1_EN 0x02
+#define BCSR5_MII1_RST 0x01
+
+/* Interrupt level assignments */
+#define PHY_INTERRUPT SIU_IRQ7 /* PHY link change interrupt */
+#define SIU_INT_FEC1 SIU_LEVEL1 /* FEC1 interrupt */
+#define SIU_INT_FEC2 SIU_LEVEL3 /* FEC2 interrupt */
+#define FEC_INTERRUPT SIU_INT_FEC1 /* FEC interrupt */
+
+/* We don't use the 8259 */
+#define NR_8259_INTS 0
+
+/* CPM Ethernet through SCC3 */
+#define PA_ENET_RXD ((ushort)0x0040)
+#define PA_ENET_TXD ((ushort)0x0080)
+#define PE_ENET_TCLK ((uint)0x00004000)
+#define PE_ENET_RCLK ((uint)0x00008000)
+#define PE_ENET_TENA ((uint)0x00000010)
+#define PC_ENET_CLSN ((ushort)0x0400)
+#define PC_ENET_RENA ((ushort)0x0800)
+
+/* Control bits in the SICR to route TCLK (CLK5) and RCLK (CLK6) to
+ * SCC3. Also, make sure GR3 (bit 8) and SC3 (bit 9) are zero */
+#define SICR_ENET_MASK ((uint)0x00ff0000)
+#define SICR_ENET_CLKRT ((uint)0x002c0000)
+
+#endif /* __ASM_MPC885ADS_H__ */
+#endif /* __KERNEL__ */
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
new file mode 100644
index 000000000000..c5fefdf66c0a
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -0,0 +1,387 @@
+/*arch/ppc/platforms/mpc885ads-setup.c
+ *
+ * Platform setup for the Freescale mpc885ads board
+ *
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * Copyright 2005 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/init.h>
+#include <linux/module.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/root_dev.h>
+
+#include <linux/fs_enet_pd.h>
+#include <linux/fs_uart_pd.h>
+#include <linux/mii.h>
+
+#include <asm/delay.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/page.h>
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/time.h>
+#include <asm/ppcboot.h>
+#include <asm/mpc8xx.h>
+#include <asm/8xx_immap.h>
+#include <asm/commproc.h>
+#include <asm/fs_pd.h>
+#include <asm/prom.h>
+
+extern void cpm_reset(void);
+extern void mpc8xx_show_cpuinfo(struct seq_file*);
+extern void mpc8xx_restart(char *cmd);
+extern void mpc8xx_calibrate_decr(void);
+extern int mpc8xx_set_rtc_time(struct rtc_time *tm);
+extern void mpc8xx_get_rtc_time(struct rtc_time *tm);
+extern void m8xx_pic_init(void);
+extern unsigned int mpc8xx_get_irq(void);
+
+static void init_smc1_uart_ioports(struct fs_uart_platform_info* fpi);
+static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi);
+static void init_scc3_ioports(struct fs_platform_info* ptr);
+
+void __init mpc885ads_board_setup(void)
+{
+ cpm8xx_t *cp;
+ unsigned int *bcsr_io;
+ u8 tmpval8;
+
+#ifdef CONFIG_FS_ENET
+ iop8xx_t *io_port;
+#endif
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+ cp = (cpm8xx_t *)immr_map(im_cpm);
+
+ if (bcsr_io == NULL) {
+ printk(KERN_CRIT "Could not remap BCSR\n");
+ return;
+ }
+#ifdef CONFIG_SERIAL_CPM_SMC1
+ clrbits32(bcsr_io, BCSR1_RS232EN_1);
+ clrbits32(&cp->cp_simode, 0xe0000000 >> 17); /* brg1 */
+ tmpval8 = in_8(&(cp->cp_smc[0].smc_smcm)) | (SMCM_RX | SMCM_TX);
+ out_8(&(cp->cp_smc[0].smc_smcm), tmpval8);
+ clrbits16(&cp->cp_smc[0].smc_smcmr, SMCMR_REN | SMCMR_TEN); /* brg1 */
+#else
+ setbits32(bcsr_io,BCSR1_RS232EN_1);
+ out_be16(&cp->cp_smc[0].smc_smcmr, 0);
+ out_8(&cp->cp_smc[0].smc_smce, 0);
+#endif
+
+#ifdef CONFIG_SERIAL_CPM_SMC2
+ clrbits32(bcsr_io,BCSR1_RS232EN_2);
+ clrbits32(&cp->cp_simode, 0xe0000000 >> 1);
+ setbits32(&cp->cp_simode, 0x20000000 >> 1); /* brg2 */
+ tmpval8 = in_8(&(cp->cp_smc[1].smc_smcm)) | (SMCM_RX | SMCM_TX);
+ out_8(&(cp->cp_smc[1].smc_smcm), tmpval8);
+ clrbits16(&cp->cp_smc[1].smc_smcmr, SMCMR_REN | SMCMR_TEN);
+
+ init_smc2_uart_ioports(0);
+#else
+ setbits32(bcsr_io,BCSR1_RS232EN_2);
+ out_be16(&cp->cp_smc[1].smc_smcmr, 0);
+ out_8(&cp->cp_smc[1].smc_smce, 0);
+#endif
+ immr_unmap(cp);
+ iounmap(bcsr_io);
+
+#ifdef CONFIG_FS_ENET
+ /* use MDC for MII (common) */
+ io_port = (iop8xx_t*)immr_map(im_ioport);
+ setbits16(&io_port->iop_pdpar, 0x0080);
+ clrbits16(&io_port->iop_pddir, 0x0080);
+
+ bcsr_io = ioremap(BCSR5, sizeof(unsigned long));
+ clrbits32(bcsr_io,BCSR5_MII1_EN);
+ clrbits32(bcsr_io,BCSR5_MII1_RST);
+#ifndef CONFIG_FC_ENET_HAS_SCC
+ clrbits32(bcsr_io,BCSR5_MII2_EN);
+ clrbits32(bcsr_io,BCSR5_MII2_RST);
+
+#endif
+ iounmap(bcsr_io);
+ immr_unmap(io_port);
+
+#endif
+}
+
+
+static void init_fec1_ioports(struct fs_platform_info* ptr)
+{
+ cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm);
+ iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport);
+
+ /* configure FEC1 pins */
+ setbits16(&io_port->iop_papar, 0xf830);
+ setbits16(&io_port->iop_padir, 0x0830);
+ clrbits16(&io_port->iop_padir, 0xf000);
+
+ setbits32(&cp->cp_pbpar, 0x00001001);
+ clrbits32(&cp->cp_pbdir, 0x00001001);
+
+ setbits16(&io_port->iop_pcpar, 0x000c);
+ clrbits16(&io_port->iop_pcdir, 0x000c);
+
+ setbits32(&cp->cp_pepar, 0x00000003);
+ setbits32(&cp->cp_pedir, 0x00000003);
+ clrbits32(&cp->cp_peso, 0x00000003);
+ clrbits32(&cp->cp_cptr, 0x00000100);
+
+ immr_unmap(io_port);
+ immr_unmap(cp);
+}
+
+
+static void init_fec2_ioports(struct fs_platform_info* ptr)
+{
+ cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm);
+ iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport);
+
+ /* configure FEC2 pins */
+ setbits32(&cp->cp_pepar, 0x0003fffc);
+ setbits32(&cp->cp_pedir, 0x0003fffc);
+ clrbits32(&cp->cp_peso, 0x000087fc);
+ setbits32(&cp->cp_peso, 0x00037800);
+ clrbits32(&cp->cp_cptr, 0x00000080);
+
+ immr_unmap(io_port);
+ immr_unmap(cp);
+}
+
+void init_fec_ioports(struct fs_platform_info *fpi)
+{
+ int fec_no = fs_get_fec_index(fpi->fs_no);
+
+ switch (fec_no) {
+ case 0:
+ init_fec1_ioports(fpi);
+ break;
+ case 1:
+ init_fec2_ioports(fpi);
+ break;
+ default:
+ printk(KERN_ERR "init_fec_ioports: invalid FEC number\n");
+ return;
+ }
+}
+
+static void init_scc3_ioports(struct fs_platform_info* fpi)
+{
+ unsigned *bcsr_io;
+ iop8xx_t *io_port;
+ cpm8xx_t *cp;
+
+ bcsr_io = ioremap(BCSR_ADDR, BCSR_SIZE);
+ io_port = (iop8xx_t *)immr_map(im_ioport);
+ cp = (cpm8xx_t *)immr_map(im_cpm);
+
+ if (bcsr_io == NULL) {
+ printk(KERN_CRIT "Could not remap BCSR\n");
+ return;
+ }
+
+ /* Enable the PHY.
+ */
+ clrbits32(bcsr_io+4, BCSR4_ETH10_RST);
+ udelay(1000);
+ setbits32(bcsr_io+4, BCSR4_ETH10_RST);
+ /* Configure port A pins for Txd and Rxd.
+ */
+ setbits16(&io_port->iop_papar, PA_ENET_RXD | PA_ENET_TXD);
+ clrbits16(&io_port->iop_padir, PA_ENET_RXD | PA_ENET_TXD);
+
+ /* Configure port C pins to enable CLSN and RENA.
+ */
+ clrbits16(&io_port->iop_pcpar, PC_ENET_CLSN | PC_ENET_RENA);
+ clrbits16(&io_port->iop_pcdir, PC_ENET_CLSN | PC_ENET_RENA);
+ setbits16(&io_port->iop_pcso, PC_ENET_CLSN | PC_ENET_RENA);
+
+ /* Configure port E for TCLK and RCLK.
+ */
+ setbits32(&cp->cp_pepar, PE_ENET_TCLK | PE_ENET_RCLK);
+ clrbits32(&cp->cp_pepar, PE_ENET_TENA);
+ clrbits32(&cp->cp_pedir,
+ PE_ENET_TCLK | PE_ENET_RCLK | PE_ENET_TENA);
+ clrbits32(&cp->cp_peso, PE_ENET_TCLK | PE_ENET_RCLK);
+ setbits32(&cp->cp_peso, PE_ENET_TENA);
+
+ /* Configure Serial Interface clock routing.
+ * First, clear all SCC bits to zero, then set the ones we want.
+ */
+ clrbits32(&cp->cp_sicr, SICR_ENET_MASK);
+ setbits32(&cp->cp_sicr, SICR_ENET_CLKRT);
+
+ /* Disable Rx and Tx. SMC1 sshould be stopped if SCC3 eternet are used.
+ */
+ clrbits16(&cp->cp_smc[0].smc_smcmr, SMCMR_REN | SMCMR_TEN);
+ /* On the MPC885ADS SCC ethernet PHY is initialized in the full duplex mode
+ * by H/W setting after reset. SCC ethernet controller support only half duplex.
+ * This discrepancy of modes causes a lot of carrier lost errors.
+ */
+
+ /* In the original SCC enet driver the following code is placed at
+ the end of the initialization */
+ setbits32(&cp->cp_pepar, PE_ENET_TENA);
+ clrbits32(&cp->cp_pedir, PE_ENET_TENA);
+ setbits32(&cp->cp_peso, PE_ENET_TENA);
+
+ setbits32(bcsr_io+4, BCSR1_ETHEN);
+ iounmap(bcsr_io);
+ immr_unmap(io_port);
+ immr_unmap(cp);
+}
+
+void init_scc_ioports(struct fs_platform_info *fpi)
+{
+ int scc_no = fs_get_scc_index(fpi->fs_no);
+
+ switch (scc_no) {
+ case 2:
+ init_scc3_ioports(fpi);
+ break;
+ default:
+ printk(KERN_ERR "init_scc_ioports: invalid SCC number\n");
+ return;
+ }
+}
+
+
+
+static void init_smc1_uart_ioports(struct fs_uart_platform_info* ptr)
+{
+ unsigned *bcsr_io;
+ cpm8xx_t *cp;
+
+ cp = (cpm8xx_t *)immr_map(im_cpm);
+ setbits32(&cp->cp_pepar, 0x000000c0);
+ clrbits32(&cp->cp_pedir, 0x000000c0);
+ clrbits32(&cp->cp_peso, 0x00000040);
+ setbits32(&cp->cp_peso, 0x00000080);
+ immr_unmap(cp);
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+
+ if (bcsr_io == NULL) {
+ printk(KERN_CRIT "Could not remap BCSR1\n");
+ return;
+ }
+ clrbits32(bcsr_io,BCSR1_RS232EN_1);
+ iounmap(bcsr_io);
+}
+
+static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi)
+{
+ unsigned *bcsr_io;
+ cpm8xx_t *cp;
+
+ cp = (cpm8xx_t *)immr_map(im_cpm);
+ setbits32(&cp->cp_pepar, 0x00000c00);
+ clrbits32(&cp->cp_pedir, 0x00000c00);
+ clrbits32(&cp->cp_peso, 0x00000400);
+ setbits32(&cp->cp_peso, 0x00000800);
+ immr_unmap(cp);
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+
+ if (bcsr_io == NULL) {
+ printk(KERN_CRIT "Could not remap BCSR1\n");
+ return;
+ }
+ clrbits32(bcsr_io,BCSR1_RS232EN_2);
+ iounmap(bcsr_io);
+}
+
+void init_smc_ioports(struct fs_uart_platform_info *data)
+{
+ int smc_no = fs_uart_id_fsid2smc(data->fs_no);
+
+ switch (smc_no) {
+ case 0:
+ init_smc1_uart_ioports(data);
+ data->brg = data->clk_rx;
+ break;
+ case 1:
+ init_smc2_uart_ioports(data);
+ data->brg = data->clk_rx;
+ break;
+ default:
+ printk(KERN_ERR "init_scc_ioports: invalid SCC number\n");
+ return;
+ }
+}
+
+int platform_device_skip(char *model, int id)
+{
+#ifdef CONFIG_MPC8xx_SECOND_ETH_SCC3
+ const char *dev = "FEC";
+ int n = 2;
+#else
+ const char *dev = "SCC";
+ int n = 3;
+#endif
+
+ if (!strcmp(model, dev) && n == id)
+ return 1;
+
+ return 0;
+}
+
+static void __init mpc885ads_setup_arch(void)
+{
+ struct device_node *cpu;
+
+ cpu = of_find_node_by_type(NULL, "cpu");
+ if (cpu != 0) {
+ const unsigned int *fp;
+
+ fp = get_property(cpu, "clock-frequency", NULL);
+ if (fp != 0)
+ loops_per_jiffy = *fp / HZ;
+ else
+ loops_per_jiffy = 50000000 / HZ;
+ of_node_put(cpu);
+ }
+
+ cpm_reset();
+
+ mpc885ads_board_setup();
+
+ ROOT_DEV = Root_NFS;
+}
+
+static int __init mpc885ads_probe(void)
+{
+ char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+ "model", NULL);
+ if (model == NULL)
+ return 0;
+ if (strcmp(model, "MPC885ADS"))
+ return 0;
+
+ return 1;
+}
+
+define_machine(mpc885_ads) {
+ .name = "MPC885 ADS",
+ .probe = mpc885ads_probe,
+ .setup_arch = mpc885ads_setup_arch,
+ .init_IRQ = m8xx_pic_init,
+ .show_cpuinfo = mpc8xx_show_cpuinfo,
+ .get_irq = mpc8xx_get_irq,
+ .restart = mpc8xx_restart,
+ .calibrate_decr = mpc8xx_calibrate_decr,
+ .set_rtc_time = mpc8xx_set_rtc_time,
+ .get_rtc_time = mpc8xx_get_rtc_time,
+};