powerpc: drop HPCD/MPC8610 evaluation platform support

This evaluation platform was essentially a single core 8641 with
integrated graphics/display support - in an effort to reduce chip count
on kiosk and similar applications.

Compared to other evaluation platforms considered for removal in other
recent commits, this platform was relatively rare.  Unlike all the other
10+ platforms, I couldn't find any documentation on it - just a link to
downloading the 2007 era BSP in "LTIB" format as was done back then.

With all that in mind, it seems prudent to remove it here in 2023.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
[mpe: Drop stale reference to MPC8610_HPCD in 86xx/Kconfig]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230225201318.3682-4-paul.gortmaker@windriver.com

3 files changed, 0 insertions, 330 deletions

diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 4fe385f37f3b..8bfafc9d2bf7 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -10,13 +10,6 @@ menuconfig PPC_86xx
 
 if PPC_86xx
 
-config MPC8610_HPCD
-	bool "Freescale MPC8610 HPCD"
-	select DEFAULT_UIMAGE
-	select FSL_ULI1575 if PCI
-	help
-	  This option enables support for the MPC8610 HPCD board.
-
 config GEF_PPC9A
 	bool "GE PPC9A"
 	select DEFAULT_UIMAGE
@@ -67,4 +60,3 @@ config MPC8610
 	select FSL_PCI if PCI
 	select PPC_UDBG_16550
 	select MPIC
-	default y if MPC8610_HPCD
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index ab2c15114228..dafbc037ff42 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -5,7 +5,6 @@
 
 obj-y				:= pic.o common.o
 obj-$(CONFIG_SMP)		+= mpc86xx_smp.o
-obj-$(CONFIG_MPC8610_HPCD)	+= mpc8610_hpcd.o
 obj-$(CONFIG_GEF_SBC610)	+= gef_sbc610.o
 obj-$(CONFIG_GEF_SBC310)	+= gef_sbc310.o
 obj-$(CONFIG_GEF_PPC9A)		+= gef_ppc9a.o
diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
deleted file mode 100644
index 6a403705ae44..000000000000
--- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c
+++ /dev/null
@@ -1,321 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * MPC8610 HPCD board specific routines
- *
- * Initial author: Xianghua Xiao <x.xiao@freescale.com>
- * Recode: Jason Jin <jason.jin@freescale.com>
- *         York Sun <yorksun@freescale.com>
- *
- * Rewrite the interrupt routing. remove the 8259PIC support,
- * All the integrated device in ULI use sideband interrupt.
- *
- * Copyright 2008 Freescale Semiconductor Inc.
- */
-
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/seq_file.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/fsl/guts.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/udbg.h>
-
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_pci.h>
-#include <sysdev/fsl_soc.h>
-
-#include "mpc86xx.h"
-
-static struct device_node *pixis_node;
-static unsigned char *pixis_bdcfg0, *pixis_arch;
-
-/* DIU Pixel Clock bits of the CLKDVDR Global Utilities register */
-#define CLKDVDR_PXCKEN		0x80000000
-#define CLKDVDR_PXCKINV		0x10000000
-#define CLKDVDR_PXCKDLY		0x06000000
-#define CLKDVDR_PXCLK_MASK	0x001F0000
-
-#ifdef CONFIG_SUSPEND
-static irqreturn_t mpc8610_sw9_irq(int irq, void *data)
-{
-	pr_debug("%s: PIXIS' event (sw9/wakeup) IRQ handled\n", __func__);
-	return IRQ_HANDLED;
-}
-
-static void __init mpc8610_suspend_init(void)
-{
-	int irq;
-	int ret;
-
-	if (!pixis_node)
-		return;
-
-	irq = irq_of_parse_and_map(pixis_node, 0);
-	if (!irq) {
-		pr_err("%s: can't map pixis event IRQ.\n", __func__);
-		return;
-	}
-
-	ret = request_irq(irq, mpc8610_sw9_irq, 0, "sw9:wakeup", NULL);
-	if (ret) {
-		pr_err("%s: can't request pixis event IRQ: %d\n",
-		       __func__, ret);
-		irq_dispose_mapping(irq);
-	}
-
-	enable_irq_wake(irq);
-}
-#else
-static inline void mpc8610_suspend_init(void) { }
-#endif /* CONFIG_SUSPEND */
-
-static const struct of_device_id mpc8610_ids[] __initconst = {
-	{ .compatible = "fsl,mpc8610-immr", },
-	{ .compatible = "fsl,mpc8610-guts", },
-	/* So that the DMA channel nodes can be probed individually: */
-	{ .compatible = "fsl,eloplus-dma", },
-	/* PCI controllers */
-	{ .compatible = "fsl,mpc8610-pci", },
-	{}
-};
-
-static int __init mpc8610_declare_of_platform_devices(void)
-{
-	/* Enable wakeup on PIXIS' event IRQ. */
-	mpc8610_suspend_init();
-
-	mpc86xx_common_publish_devices();
-
-	/* Without this call, the SSI device driver won't get probed. */
-	of_platform_bus_probe(NULL, mpc8610_ids, NULL);
-
-	return 0;
-}
-machine_arch_initcall(mpc86xx_hpcd, mpc8610_declare_of_platform_devices);
-
-#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-
-/*
- * DIU Area Descriptor
- *
- * The MPC8610 reference manual shows the bits of the AD register in
- * little-endian order, which causes the BLUE_C field to be split into two
- * parts. To simplify the definition of the MAKE_AD() macro, we define the
- * fields in big-endian order and byte-swap the result.
- *
- * So even though the registers don't look like they're in the
- * same bit positions as they are on the P1022, the same value is written to
- * the AD register on the MPC8610 and on the P1022.
- */
-#define AD_BYTE_F		0x10000000
-#define AD_ALPHA_C_MASK		0x0E000000
-#define AD_ALPHA_C_SHIFT	25
-#define AD_BLUE_C_MASK		0x01800000
-#define AD_BLUE_C_SHIFT		23
-#define AD_GREEN_C_MASK		0x00600000
-#define AD_GREEN_C_SHIFT	21
-#define AD_RED_C_MASK		0x00180000
-#define AD_RED_C_SHIFT		19
-#define AD_PALETTE		0x00040000
-#define AD_PIXEL_S_MASK		0x00030000
-#define AD_PIXEL_S_SHIFT	16
-#define AD_COMP_3_MASK		0x0000F000
-#define AD_COMP_3_SHIFT		12
-#define AD_COMP_2_MASK		0x00000F00
-#define AD_COMP_2_SHIFT		8
-#define AD_COMP_1_MASK		0x000000F0
-#define AD_COMP_1_SHIFT		4
-#define AD_COMP_0_MASK		0x0000000F
-#define AD_COMP_0_SHIFT		0
-
-#define MAKE_AD(alpha, red, blue, green, size, c0, c1, c2, c3) \
-	cpu_to_le32(AD_BYTE_F | (alpha << AD_ALPHA_C_SHIFT) | \
-	(blue << AD_BLUE_C_SHIFT) | (green << AD_GREEN_C_SHIFT) | \
-	(red << AD_RED_C_SHIFT) | (c3 << AD_COMP_3_SHIFT) | \
-	(c2 << AD_COMP_2_SHIFT) | (c1 << AD_COMP_1_SHIFT) | \
-	(c0 << AD_COMP_0_SHIFT) | (size << AD_PIXEL_S_SHIFT))
-
-u32 mpc8610hpcd_get_pixel_format(enum fsl_diu_monitor_port port,
-				 unsigned int bits_per_pixel)
-{
-	static const u32 pixelformat[][3] = {
-		{
-			MAKE_AD(3, 0, 2, 1, 3, 8, 8, 8, 8),
-			MAKE_AD(4, 2, 0, 1, 2, 8, 8, 8, 0),
-			MAKE_AD(4, 0, 2, 1, 1, 5, 6, 5, 0)
-		},
-		{
-			MAKE_AD(3, 2, 0, 1, 3, 8, 8, 8, 8),
-			MAKE_AD(4, 0, 2, 1, 2, 8, 8, 8, 0),
-			MAKE_AD(4, 2, 0, 1, 1, 5, 6, 5, 0)
-		},
-	};
-	unsigned int arch_monitor;
-
-	/* The DVI port is mis-wired on revision 1 of this board. */
-	arch_monitor =
-		((*pixis_arch == 0x01) && (port == FSL_DIU_PORT_DVI)) ? 0 : 1;
-
-	switch (bits_per_pixel) {
-	case 32:
-		return pixelformat[arch_monitor][0];
-	case 24:
-		return pixelformat[arch_monitor][1];
-	case 16:
-		return pixelformat[arch_monitor][2];
-	default:
-		pr_err("fsl-diu: unsupported pixel depth %u\n", bits_per_pixel);
-		return 0;
-	}
-}
-
-void mpc8610hpcd_set_gamma_table(enum fsl_diu_monitor_port port,
-				 char *gamma_table_base)
-{
-	int i;
-	if (port == FSL_DIU_PORT_DLVDS) {
-		for (i = 0; i < 256*3; i++)
-			gamma_table_base[i] = (gamma_table_base[i] << 2) |
-					 ((gamma_table_base[i] >> 6) & 0x03);
-	}
-}
-
-#define PX_BRDCFG0_DVISEL	(1 << 3)
-#define PX_BRDCFG0_DLINK	(1 << 4)
-#define PX_BRDCFG0_DIU_MASK	(PX_BRDCFG0_DVISEL | PX_BRDCFG0_DLINK)
-
-void mpc8610hpcd_set_monitor_port(enum fsl_diu_monitor_port port)
-{
-	switch (port) {
-	case FSL_DIU_PORT_DVI:
-		clrsetbits_8(pixis_bdcfg0, PX_BRDCFG0_DIU_MASK,
-			     PX_BRDCFG0_DVISEL | PX_BRDCFG0_DLINK);
-		break;
-	case FSL_DIU_PORT_LVDS:
-		clrsetbits_8(pixis_bdcfg0, PX_BRDCFG0_DIU_MASK,
-			     PX_BRDCFG0_DLINK);
-		break;
-	case FSL_DIU_PORT_DLVDS:
-		clrbits8(pixis_bdcfg0, PX_BRDCFG0_DIU_MASK);
-		break;
-	}
-}
-
-/**
- * mpc8610hpcd_set_pixel_clock: program the DIU's clock
- *
- * @pixclock: the wavelength, in picoseconds, of the clock
- */
-void mpc8610hpcd_set_pixel_clock(unsigned int pixclock)
-{
-	struct device_node *guts_np = NULL;
-	struct ccsr_guts __iomem *guts;
-	unsigned long freq;
-	u64 temp;
-	u32 pxclk;
-
-	/* Map the global utilities registers. */
-	guts_np = of_find_compatible_node(NULL, NULL, "fsl,mpc8610-guts");
-	if (!guts_np) {
-		pr_err("mpc8610hpcd: missing global utilities device node\n");
-		return;
-	}
-
-	guts = of_iomap(guts_np, 0);
-	of_node_put(guts_np);
-	if (!guts) {
-		pr_err("mpc8610hpcd: could not map global utilities device\n");
-		return;
-	}
-
-	/* Convert pixclock from a wavelength to a frequency */
-	temp = 1000000000000ULL;
-	do_div(temp, pixclock);
-	freq = temp;
-
-	/*
-	 * 'pxclk' is the ratio of the platform clock to the pixel clock.
-	 * On the MPC8610, the value programmed into CLKDVDR is the ratio
-	 * minus one.  The valid range of values is 2-31.
-	 */
-	pxclk = DIV_ROUND_CLOSEST(fsl_get_sys_freq(), freq) - 1;
-	pxclk = clamp_t(u32, pxclk, 2, 31);
-
-	/* Disable the pixel clock, and set it to non-inverted and no delay */
-	clrbits32(&guts->clkdvdr,
-		  CLKDVDR_PXCKEN | CLKDVDR_PXCKDLY | CLKDVDR_PXCLK_MASK);
-
-	/* Enable the clock and set the pxclk */
-	setbits32(&guts->clkdvdr, CLKDVDR_PXCKEN | (pxclk << 16));
-
-	iounmap(guts);
-}
-
-enum fsl_diu_monitor_port
-mpc8610hpcd_valid_monitor_port(enum fsl_diu_monitor_port port)
-{
-	return port;
-}
-
-#endif
-
-static void __init mpc86xx_hpcd_setup_arch(void)
-{
-	struct resource r;
-	unsigned char *pixis;
-
-	if (ppc_md.progress)
-		ppc_md.progress("mpc86xx_hpcd_setup_arch()", 0);
-
-	fsl_pci_assign_primary();
-
-#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-	diu_ops.get_pixel_format	= mpc8610hpcd_get_pixel_format;
-	diu_ops.set_gamma_table		= mpc8610hpcd_set_gamma_table;
-	diu_ops.set_monitor_port	= mpc8610hpcd_set_monitor_port;
-	diu_ops.set_pixel_clock		= mpc8610hpcd_set_pixel_clock;
-	diu_ops.valid_monitor_port	= mpc8610hpcd_valid_monitor_port;
-#endif
-
-	pixis_node = of_find_compatible_node(NULL, NULL, "fsl,fpga-pixis");
-	if (pixis_node) {
-		of_address_to_resource(pixis_node, 0, &r);
-		of_node_put(pixis_node);
-		pixis = ioremap(r.start, 32);
-		if (!pixis) {
-			printk(KERN_ERR "Err: can't map FPGA cfg register!\n");
-			return;
-		}
-		pixis_bdcfg0 = pixis + 8;
-		pixis_arch = pixis + 1;
-	} else
-		printk(KERN_ERR "Err: "
-				"can't find device node 'fsl,fpga-pixis'\n");
-
-	printk("MPC86xx HPCD board from Freescale Semiconductor\n");
-}
-
-define_machine(mpc86xx_hpcd) {
-	.name			= "MPC86xx HPCD",
-	.compatible		= "fsl,MPC8610HPCD",
-	.setup_arch		= mpc86xx_hpcd_setup_arch,
-	.init_IRQ		= mpc86xx_init_irq,
-	.get_irq		= mpic_get_irq,
-	.time_init		= mpc86xx_time_init,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-};