powerpc: drop MPC832x_MDS platform support

This final variant in the e300 family of Modular Development System
(MDS) in this series was actually aimed at feature reduction - things
like floating point and ethernet were removed in order to make for a
lower power and lower cost system.

Like all the MDS systems, it was meant as a vehicle to get the CPU out
early to hardware OEMs so software and board development could take place
in parallel.

These were made in limited numbers and availability preference was given
to partners who were planning to make their own boards.

Given that the whole reason for existence was to assist in enabling new
board designs [not happening for 10+ years], and that they weren't
generally available, and that the hardware wasn't really hobbyist friendly
even for retro computing, it makes sense to retire the support for this
particular platform.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
[mpe: Drop stale reference to MPC832x_MDS in arch/powerpc/boot/Makefile]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-5-paul.gortmaker@windriver.com

arch/powerpc/boot/Makefile

@@ -334,7 +334,6 @@ image-$(CONFIG_PQ2FADS)			+= cuImage.pq2fads
 image-$(CONFIG_EP8248E)			+= dtbImage.ep8248e
 
 # Board ports in arch/powerpc/platform/83xx/Kconfig
-image-$(CONFIG_MPC832x_MDS)		+= cuImage.mpc832x_mds
 image-$(CONFIG_MPC832x_RDB)		+= cuImage.mpc832x_rdb
 image-$(CONFIG_MPC834x_ITX)		+= cuImage.mpc8349emitx \
 					   cuImage.mpc8349emitxgp

arch/powerpc/configs/83xx/mpc832x_mds_defconfig

-CONFIG_SYSVIPC=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_EXPERT=y
-# CONFIG_KALLSYMS is not set
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_MSDOS_PARTITION is not set
-# CONFIG_PPC_CHRP is not set
-# CONFIG_PPC_PMAC is not set
-CONFIG_PPC_83xx=y
-CONFIG_MPC832x_MDS=y
-CONFIG_MATH_EMULATION=y
-CONFIG_PCI=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_SYN_COOKIES=y
-# CONFIG_IPV6 is not set
-# CONFIG_FW_LOADER is not set
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=32768
-CONFIG_SCSI=y
-CONFIG_NETDEVICES=y
-CONFIG_UCC_GETH=y
-CONFIG_DAVICOM_PHY=y
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_HW_RANDOM=y
-CONFIG_I2C=y
-CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_MPC=y
-CONFIG_WATCHDOG=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_DS1374=y
-CONFIG_QUICC_ENGINE=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT4_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V4=y
-CONFIG_ROOT_NFS=y
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_PCBC=m

arch/powerpc/configs/mpc83xx_defconfig

@@ -11,7 +11,6 @@ CONFIG_PARTITION_ADVANCED=y
 # CONFIG_PPC_PMAC is not set
 CONFIG_PPC_83xx=y
 CONFIG_MPC831x_RDB=y
-CONFIG_MPC832x_MDS=y
 CONFIG_MPC832x_RDB=y
 CONFIG_MPC834x_ITX=y
 CONFIG_MPC836x_RDK=y

arch/powerpc/configs/ppc6xx_defconfig

@@ -44,7 +44,6 @@ CONFIG_EP8248E=y
 CONFIG_MGCOGE=y
 CONFIG_PPC_83xx=y
 CONFIG_MPC831x_RDB=y
-CONFIG_MPC832x_MDS=y
 CONFIG_MPC832x_RDB=y
 CONFIG_MPC834x_ITX=y
 CONFIG_MPC836x_RDK=y

arch/powerpc/platforms/83xx/Kconfig

@@ -25,13 +25,6 @@ config MPC831x_RDB
 	help
 	  This option enables support for the MPC8313 RDB and MPC8315 RDB boards.
 
-config MPC832x_MDS
-	bool "Freescale MPC832x MDS"
-	select DEFAULT_UIMAGE
-	select PPC_MPC832x
-	help
-	  This option enables support for the MPC832x MDS evaluation board.
-
 config MPC832x_RDB
 	bool "Freescale MPC832x RDB"
 	select DEFAULT_UIMAGE

arch/powerpc/platforms/83xx/Makefile

@@ -10,7 +10,6 @@ obj-$(CONFIG_MPC831x_RDB)	+= mpc831x_rdb.o
 obj-$(CONFIG_MPC832x_RDB)	+= mpc832x_rdb.o
 obj-$(CONFIG_MPC834x_ITX)	+= mpc834x_itx.o
 obj-$(CONFIG_MPC836x_RDK)	+= mpc836x_rdk.o
-obj-$(CONFIG_MPC832x_MDS)	+= mpc832x_mds.o
 obj-$(CONFIG_MPC837x_RDB)	+= mpc837x_rdb.o
 obj-$(CONFIG_ASP834x)		+= asp834x.o
 obj-$(CONFIG_KMETER1)		+= km83xx.o

arch/powerpc/platforms/83xx/mpc832x_mds.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved.
- *
- * Description:
- * MPC832xE MDS board specific routines.
- */
-
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/initrd.h>
-#include <linux/of_platform.h>
-#include <linux/of_device.h>
-
-#include <linux/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/ipic.h>
-#include <asm/irq.h>
-#include <asm/udbg.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <soc/fsl/qe/qe.h>
-
-#include "mpc83xx.h"
-
-#undef DEBUG
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-static void __init mpc832x_sys_setup_arch(void)
-{
-	struct device_node *np;
-	u8 __iomem *bcsr_regs = NULL;
-
-	mpc83xx_setup_arch();
-
-	/* Map BCSR area */
-	np = of_find_node_by_name(NULL, "bcsr");
-	if (np) {
-		struct resource res;
-
-		of_address_to_resource(np, 0, &res);
-		bcsr_regs = ioremap(res.start, resource_size(&res));
-		of_node_put(np);
-	}
-
-#ifdef CONFIG_QUICC_ENGINE
-	if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
-		par_io_init(np);
-		of_node_put(np);
-
-		for_each_node_by_name(np, "ucc")
-			par_io_of_config(np);
-	}
-
-	if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
-			!= NULL){
-		/* Reset the Ethernet PHYs */
-#define BCSR8_FETH_RST 0x50
-		clrbits8(&bcsr_regs[8], BCSR8_FETH_RST);
-		udelay(1000);
-		setbits8(&bcsr_regs[8], BCSR8_FETH_RST);
-		iounmap(bcsr_regs);
-		of_node_put(np);
-	}
-#endif				/* CONFIG_QUICC_ENGINE */
-}
-
-machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices);
-
-define_machine(mpc832x_mds) {
-	.name 		= "MPC832x MDS",
-	.compatible	= "MPC832xMDS",
-	.setup_arch 	= mpc832x_sys_setup_arch,
-	.discover_phbs	= mpc83xx_setup_pci,
-	.init_IRQ	= mpc83xx_ipic_init_IRQ,
-	.get_irq 	= ipic_get_irq,
-	.restart 	= mpc83xx_restart,
-	.time_init 	= mpc83xx_time_init,
-	.progress 	= udbg_progress,
-};