avr32: Retire AVR32 for good

AVR32 is gone. It's already more than two years for no support in Buildroot,
even longer there is no support in GCC (last version is heavily patched 4.2.4).

Linux kernel v4.12 got rid of it (and v4.11 didn't build successfully).

There is no good point to keep this support in U-Boot either.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

5 files changed, 0 insertions, 343 deletions

diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile
deleted file mode 100644
index 8108ae5..0000000
--- a/arch/avr32/lib/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# (C) Copyright 2002-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# (C) Copyright 2004-2006 Atmel Corporation
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-obj-y	+= memset.o
-obj-$(CONFIG_CMD_BOOTM) += bootm.o
-obj-y	+= interrupts.o
-obj-y	+= dram_init.o
diff --git a/arch/avr32/lib/bootm.c b/arch/avr32/lib/bootm.c
deleted file mode 100644
index 342b9e2..0000000
--- a/arch/avr32/lib/bootm.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <command.h>
-#include <image.h>
-#include <u-boot/zlib.h>
-#include <asm/byteorder.h>
-#include <asm/arch/addrspace.h>
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/arch/clk.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* CPU-specific hook to allow flushing of caches, etc. */
-extern void prepare_to_boot(void);
-
-static struct tag *setup_start_tag(struct tag *params)
-{
-	params->hdr.tag = ATAG_CORE;
-	params->hdr.size = tag_size(tag_core);
-
-	params->u.core.flags = 0;
-	params->u.core.pagesize = 4096;
-	params->u.core.rootdev = 0;
-
-	return tag_next(params);
-}
-
-static struct tag *setup_memory_tags(struct tag *params)
-{
-	bd_t *bd = gd->bd;
-	int i;
-
-	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-		params->hdr.tag = ATAG_MEM;
-		params->hdr.size = tag_size(tag_mem_range);
-
-		params->u.mem_range.addr = bd->bi_dram[i].start;
-		params->u.mem_range.size = bd->bi_dram[i].size;
-
-		params = tag_next(params);
-	}
-
-	return params;
-}
-
-static struct tag *setup_commandline_tag(struct tag *params, char *cmdline)
-{
-	if (!cmdline)
-		return params;
-
-	/* eat leading white space */
-	while (*cmdline == ' ') cmdline++;
-
-	/*
-	 * Don't include tags for empty command lines; let the kernel
-	 * use its default command line.
-	 */
-	if (*cmdline == '\0')
-		return params;
-
-	params->hdr.tag = ATAG_CMDLINE;
-	params->hdr.size =
-		(sizeof (struct tag_header) + strlen(cmdline) + 1 + 3) >> 2;
-	strcpy(params->u.cmdline.cmdline, cmdline);
-
-	return tag_next(params);
-}
-
-static struct tag *setup_ramdisk_tag(struct tag *params,
-				     unsigned long rd_start,
-				     unsigned long rd_end)
-{
-	if (rd_start == rd_end)
-		return params;
-
-	params->hdr.tag = ATAG_RDIMG;
-	params->hdr.size = tag_size(tag_mem_range);
-
-	params->u.mem_range.addr = rd_start;
-	params->u.mem_range.size = rd_end - rd_start;
-
-	return tag_next(params);
-}
-
-static struct tag *setup_clock_tags(struct tag *params)
-{
-	params->hdr.tag = ATAG_CLOCK;
-	params->hdr.size = tag_size(tag_clock);
-	params->u.clock.clock_id = ACLOCK_BOOTCPU;
-	params->u.clock.clock_flags = 0;
-	params->u.clock.clock_hz = gd->arch.cpu_hz;
-
-#ifdef CONFIG_AT32AP7000
-	/*
-	 * New kernels don't need this, but we should be backwards
-	 * compatible for a while...
-	 */
-	params = tag_next(params);
-
-	params->hdr.tag = ATAG_CLOCK;
-	params->hdr.size = tag_size(tag_clock);
-	params->u.clock.clock_id = ACLOCK_HSB;
-	params->u.clock.clock_flags = 0;
-	params->u.clock.clock_hz = get_hsb_clk_rate();
-#endif
-
-	return tag_next(params);
-}
-
-static struct tag *setup_ethernet_tag(struct tag *params,
-				      char *addr, int index)
-{
-	char *s, *e;
-	int i;
-
-	params->hdr.tag = ATAG_ETHERNET;
-	params->hdr.size = tag_size(tag_ethernet);
-
-	params->u.ethernet.mac_index = index;
-	params->u.ethernet.mii_phy_addr = gd->bd->bi_phy_id[index];
-
-	s = addr;
-	for (i = 0; i < 6; i++) {
-		params->u.ethernet.hw_address[i] = simple_strtoul(s, &e, 16);
-		s = e + 1;
-	}
-
-	return tag_next(params);
-}
-
-static struct tag *setup_ethernet_tags(struct tag *params)
-{
-	char name[16] = "ethaddr";
-	char *addr;
-	int i = 0;
-
-	do {
-		addr = getenv(name);
-		if (addr)
-			params = setup_ethernet_tag(params, addr, i);
-		sprintf(name, "eth%daddr", ++i);
-	} while (i < 4);
-
-	return params;
-}
-
-static struct tag *setup_boardinfo_tag(struct tag *params)
-{
-	params->hdr.tag = ATAG_BOARDINFO;
-	params->hdr.size = tag_size(tag_boardinfo);
-
-	params->u.boardinfo.board_number = gd->bd->bi_board_number;
-
-	return tag_next(params);
-}
-
-static void setup_end_tag(struct tag *params)
-{
-	params->hdr.tag = ATAG_NONE;
-	params->hdr.size = 0;
-}
-
-int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
-{
-	void	(*theKernel)(int magic, void *tagtable);
-	struct	tag *params, *params_start;
-	char	*commandline = getenv("bootargs");
-
-	/*
-	 * allow the PREP bootm subcommand, it is required for bootm to work
-	 *
-	 * TODO: Andreas Bießmann <andreas@biessmann.org> refactor the
-	 * do_bootm_linux() for avr32
-	 */
-	if (flag & BOOTM_STATE_OS_PREP)
-		return 0;
-
-	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
-		return 1;
-
-	theKernel = (void *)images->ep;
-
-	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
-
-	params = params_start = (struct tag *)gd->bd->bi_boot_params;
-	params = setup_start_tag(params);
-	params = setup_memory_tags(params);
-	if (images->rd_start) {
-		params = setup_ramdisk_tag(params,
-					   PHYSADDR(images->rd_start),
-					   PHYSADDR(images->rd_end));
-	}
-	params = setup_commandline_tag(params, commandline);
-	params = setup_clock_tags(params);
-	params = setup_ethernet_tags(params);
-	params = setup_boardinfo_tag(params);
-	setup_end_tag(params);
-
-	printf("\nStarting kernel at %p (params at %p)...\n\n",
-	       theKernel, params_start);
-
-	prepare_to_boot();
-
-	theKernel(ATAG_MAGIC, params_start);
-	/* does not return */
-
-	return 1;
-}
diff --git a/arch/avr32/lib/dram_init.c b/arch/avr32/lib/dram_init.c
deleted file mode 100644
index 79c2455..0000000
--- a/arch/avr32/lib/dram_init.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (C) 2015 Andreas Bießmann <andreas@biessmann.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-int dram_init(void)
-{
-	/* check for the maximum amount of memory possible on AP7000 devices */
-	gd->ram_size = get_ram_size(
-		(void *)CONFIG_SYS_SDRAM_BASE,
-		(256<<20));
-	return 0;
-}
diff --git a/arch/avr32/lib/interrupts.c b/arch/avr32/lib/interrupts.c
deleted file mode 100644
index 5f3a49e..0000000
--- a/arch/avr32/lib/interrupts.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-
-#include <asm/sysreg.h>
-
-int interrupt_init(void)
-{
-	return 0;
-}
-
-void enable_interrupts(void)
-{
-	asm volatile("csrf	%0" : : "n"(SYSREG_GM_OFFSET));
-}
-
-int disable_interrupts(void)
-{
-	unsigned long sr;
-
-	sr = sysreg_read(SR);
-	asm volatile("ssrf	%0" : : "n"(SYSREG_GM_OFFSET));
-
-#ifdef CONFIG_AT32UC3A0xxx
-	/* Two NOPs are required after masking interrupts on the
-	 * AT32UC3A0512ES. See errata 41.4.5.5. */
-	asm("nop");
-	asm("nop");
-#endif
-
-	return !SYSREG_BFEXT(GM, sr);
-}
diff --git a/arch/avr32/lib/memset.S b/arch/avr32/lib/memset.S
deleted file mode 100644
index ac2d388..0000000
--- a/arch/avr32/lib/memset.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-	/*
-	 * r12:	void *b
-	 * r11:	int c
-	 * r10:	size_t len
-	 *
-	 * Returns b in r12
-	 */
-	.section .text.memset, "ax", @progbits
-
-	.global	memset
-	.type	memset, @function
-	.align	2
-memset:
-	mov	r9, r12
-	mov	r8, r12
-	or	r11, r11, r11 << 8
-	andl	r9, 3, COH
-	brne	1f
-
-2:	or	r11, r11, r11 << 16
-	sub	r10, 4
-	brlt	5f
-
-	/* Let's do some real work */
-4:	st.w	r8++, r11
-	sub	r10, 4
-	brge	4b
-
-	/*
-	 * When we get here, we've got less than 4 bytes to set. r10
-	 * might be negative.
-	 */
-5:	sub	r10, -4
-	reteq	r12
-
-	/* Fastpath ends here, exactly 32 bytes from memset */
-
-	/* Handle unaligned count or pointer */
-	bld	r10, 1
-	brcc	6f
-	st.b	r8++, r11
-	st.b	r8++, r11
-	bld	r10, 0
-	retcc	r12
-6:	st.b	r8++, r11
-	mov	pc, lr
-
-	/* Handle unaligned pointer */
-1:	sub	r10, 4
-	brlt	5b
-	add	r10, r9
-	lsl	r9, 1
-	add	pc, r9
-	st.b	r8++, r11
-	st.b	r8++, r11
-	st.b	r8++, r11
-	rjmp	2b
-
-	.size	memset, . - memset