powerpc: drop MPC834x_MDS platform support

This 2006 era Modular Development System (MDS) has, at its core
component, a full length card with a PCI-64 edge.  No case.  Serial
and network connectors were on card, so it could optionally be fitted
with plastic stand-offs and run stand-alone off a power brick.

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.

To that end, the BGA CPU was held in place with a mechanical spring
loaded pressure assembly (vs. solder) so that early rev silicon could
be replaced in the field.  Not for COTS deployment!

These were made in limited numbers and availability preference was
given to partners who were planning to make their own boards, like
our WR SBC8349 [since retired in v4.18 (2017, commit 3bc6cf5a86e5)]

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 platform.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-2-paul.gortmaker@windriver.com

3 files changed, 0 insertions, 105 deletions

diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index bee119725f61..1ca0ba3b0f1c 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -39,18 +39,6 @@ config MPC832x_RDB
 	help
 	  This option enables support for the MPC8323 RDB board.
 
-config MPC834x_MDS
-	bool "Freescale MPC834x MDS"
-	select DEFAULT_UIMAGE
-	select PPC_MPC834x
-	help
-	  This option enables support for the MPC 834x MDS evaluation board.
-
-	  Be aware that PCI buses can only function when MDS board is plugged
-	  into the PIB (Platform IO Board) board from Freescale which provide
-	  3 PCI slots.  The PIBs PCI initialization is the bootloader's
-	  responsibility.
-
 config MPC834x_ITX
 	bool "Freescale MPC834x ITX"
 	select DEFAULT_UIMAGE
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index 41cb5f842eff..5697b70492b8 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_MCU_MPC8349EMITX)	+= mcu_mpc8349emitx.o
 obj-$(CONFIG_MPC830x_RDB)	+= mpc830x_rdb.o
 obj-$(CONFIG_MPC831x_RDB)	+= mpc831x_rdb.o
 obj-$(CONFIG_MPC832x_RDB)	+= mpc832x_rdb.o
-obj-$(CONFIG_MPC834x_MDS)	+= mpc834x_mds.o
 obj-$(CONFIG_MPC834x_ITX)	+= mpc834x_itx.o
 obj-$(CONFIG_MPC836x_MDS)	+= mpc836x_mds.o
 obj-$(CONFIG_MPC836x_RDK)	+= mpc836x_rdk.o
diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
deleted file mode 100644
index d08974a60848..000000000000
--- a/arch/powerpc/platforms/83xx/mpc834x_mds.c
+++ /dev/null
@@ -1,92 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/powerpc/platforms/83xx/mpc834x_mds.c
- *
- * MPC834x MDS board specific routines
- *
- * Maintainer: Kumar Gala <galak@kernel.crashing.org>
- */
-
-#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/of_address.h>
-#include <linux/of_platform.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 "mpc83xx.h"
-
-#define BCSR5_INT_USB		0x02
-static int __init mpc834xemds_usb_cfg(void)
-{
-	struct device_node *np;
-	void __iomem *bcsr_regs = NULL;
-	u8 bcsr5;
-
-	mpc834x_usb_cfg();
-	/* 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);
-	}
-	if (!bcsr_regs)
-		return -1;
-
-	/*
-	 * if Processor Board is plugged into PIB board,
-	 * force to use the PHY on Processor Board
-	 */
-	bcsr5 = in_8(bcsr_regs + 5);
-	if (!(bcsr5 & BCSR5_INT_USB))
-		out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
-	iounmap(bcsr_regs);
-	return 0;
-}
-
-/* ************************************************************************
- *
- * Setup the architecture
- *
- */
-static void __init mpc834x_mds_setup_arch(void)
-{
-	mpc83xx_setup_arch();
-
-	mpc834xemds_usb_cfg();
-}
-
-machine_device_initcall(mpc834x_mds, mpc83xx_declare_of_platform_devices);
-
-define_machine(mpc834x_mds) {
-	.name			= "MPC834x MDS",
-	.compatible		= "MPC834xMDS",
-	.setup_arch		= mpc834x_mds_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,
-};