8 files changed, 701 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/arch/mips/lib/Makefile b/qemu/roms/u-boot/arch/mips/lib/Makefile
new file mode 100644
index 000000000..e483e86f6
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/Makefile
@@ -0,0 +1,15 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+ifndef CONFIG_SYS_GENERIC_BOARD
+obj-y	+= board.o
+endif
+obj-y	+= io.o
+
+obj-$(CONFIG_CMD_BOOTM) += bootm.o
+
+lib-$(CONFIG_USE_PRIVATE_LIBGCC) += ashldi3.o ashrdi3.o lshrdi3.o
diff --git a/qemu/roms/u-boot/arch/mips/lib/ashldi3.c b/qemu/roms/u-boot/arch/mips/lib/ashldi3.c
new file mode 100644
index 000000000..9b50d866a
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/ashldi3.c
@@ -0,0 +1,25 @@
+#include "libgcc.h"
+
+long long __ashldi3(long long u, word_type b)
+{
+	DWunion uu, w;
+	word_type bm;
+
+	if (b == 0)
+		return u;
+
+	uu.ll = u;
+	bm = 32 - b;
+
+	if (bm <= 0) {
+		w.s.low = 0;
+		w.s.high = (unsigned int) uu.s.low << -bm;
+	} else {
+		const unsigned int carries = (unsigned int) uu.s.low >> bm;
+
+		w.s.low = (unsigned int) uu.s.low << b;
+		w.s.high = ((unsigned int) uu.s.high << b) | carries;
+	}
+
+	return w.ll;
+}
diff --git a/qemu/roms/u-boot/arch/mips/lib/ashrdi3.c b/qemu/roms/u-boot/arch/mips/lib/ashrdi3.c
new file mode 100644
index 000000000..f30359b73
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/ashrdi3.c
@@ -0,0 +1,27 @@
+#include "libgcc.h"
+
+long long __ashrdi3(long long u, word_type b)
+{
+	DWunion uu, w;
+	word_type bm;
+
+	if (b == 0)
+		return u;
+
+	uu.ll = u;
+	bm = 32 - b;
+
+	if (bm <= 0) {
+		/* w.s.high = 1..1 or 0..0 */
+		w.s.high =
+		    uu.s.high >> 31;
+		w.s.low = uu.s.high >> -bm;
+	} else {
+		const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+		w.s.high = uu.s.high >> b;
+		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+	}
+
+	return w.ll;
+}
diff --git a/qemu/roms/u-boot/arch/mips/lib/board.c b/qemu/roms/u-boot/arch/mips/lib/board.c
new file mode 100644
index 000000000..3feb02071
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/board.c
@@ -0,0 +1,320 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <serial.h>
+#include <stdio_dev.h>
+#include <version.h>
+#include <net.h>
+#include <environment.h>
+#include <nand.h>
+#include <onenand_uboot.h>
+#include <spi.h>
+
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ulong monitor_flash_len;
+
+static char *failed = "*** failed ***\n";
+
+int __board_early_init_f(void)
+{
+	/*
+	 * Nothing to do in this dummy implementation
+	 */
+	return 0;
+}
+int board_early_init_f(void)
+	__attribute__((weak, alias("__board_early_init_f")));
+
+static int init_func_ram(void)
+{
+#ifdef	CONFIG_BOARD_TYPES
+	int board_type = gd->board_type;
+#else
+	int board_type = 0;	/* use dummy arg */
+#endif
+	puts("DRAM:  ");
+
+	gd->ram_size = initdram(board_type);
+	if (gd->ram_size > 0) {
+		print_size(gd->ram_size, "\n");
+		return 0;
+	}
+	puts(failed);
+	return 1;
+}
+
+static int display_banner(void)
+{
+
+	printf("\n\n%s\n\n", version_string);
+	return 0;
+}
+
+#ifndef CONFIG_SYS_NO_FLASH
+static void display_flash_config(ulong size)
+{
+	puts("Flash: ");
+	print_size(size, "\n");
+}
+#endif
+
+static int init_baudrate(void)
+{
+	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
+	return 0;
+}
+
+
+/*
+ * Breath some life into the board...
+ *
+ * The first part of initialization is running from Flash memory;
+ * its main purpose is to initialize the RAM so that we
+ * can relocate the monitor code to RAM.
+ */
+
+/*
+ * All attempts to come up with a "common" initialization sequence
+ * that works for all boards and architectures failed: some of the
+ * requirements are just _too_ different. To get rid of the resulting
+ * mess of board dependend #ifdef'ed code we now make the whole
+ * initialization sequence configurable to the user.
+ *
+ * The requirements for any new initalization function is simple: it
+ * receives a pointer to the "global data" structure as it's only
+ * argument, and returns an integer return code, where 0 means
+ * "continue" and != 0 means "fatal error, hang the system".
+ */
+typedef int (init_fnc_t)(void);
+
+init_fnc_t *init_sequence[] = {
+	board_early_init_f,
+	timer_init,
+	env_init,		/* initialize environment */
+	init_baudrate,		/* initialize baudrate settings */
+	serial_init,		/* serial communications setup */
+	console_init_f,
+	display_banner,		/* say that we are here */
+	checkboard,
+	init_func_ram,
+	NULL,
+};
+
+
+void board_init_f(ulong bootflag)
+{
+	gd_t gd_data, *id;
+	bd_t *bd;
+	init_fnc_t **init_fnc_ptr;
+	ulong addr, addr_sp, len;
+	ulong *s;
+
+	/* Pointer is writable since we allocated a register for it.
+	 */
+	gd = &gd_data;
+	/* compiler optimization barrier needed for GCC >= 3.4 */
+	__asm__ __volatile__("" : : : "memory");
+
+	memset((void *)gd, 0, sizeof(gd_t));
+
+	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+		if ((*init_fnc_ptr)() != 0)
+			hang();
+	}
+
+	/*
+	 * Now that we have DRAM mapped and working, we can
+	 * relocate the code and continue running from DRAM.
+	 */
+	addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
+
+	/* We can reserve some RAM "on top" here.
+	 */
+
+	/* round down to next 4 kB limit.
+	 */
+	addr &= ~(4096 - 1);
+	debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
+
+	/* Reserve memory for U-Boot code, data & bss
+	 * round down to next 16 kB limit
+	 */
+	len = bss_end() - CONFIG_SYS_MONITOR_BASE;
+	addr -= len;
+	addr &= ~(16 * 1024 - 1);
+
+	debug("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
+
+	 /* Reserve memory for malloc() arena.
+	 */
+	addr_sp = addr - TOTAL_MALLOC_LEN;
+	debug("Reserving %dk for malloc() at: %08lx\n",
+			TOTAL_MALLOC_LEN >> 10, addr_sp);
+
+	/*
+	 * (permanently) allocate a Board Info struct
+	 * and a permanent copy of the "global" data
+	 */
+	addr_sp -= sizeof(bd_t);
+	bd = (bd_t *)addr_sp;
+	gd->bd = bd;
+	debug("Reserving %zu Bytes for Board Info at: %08lx\n",
+			sizeof(bd_t), addr_sp);
+
+	addr_sp -= sizeof(gd_t);
+	id = (gd_t *)addr_sp;
+	debug("Reserving %zu Bytes for Global Data at: %08lx\n",
+			sizeof(gd_t), addr_sp);
+
+	/* Reserve memory for boot params.
+	 */
+	addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
+	bd->bi_boot_params = addr_sp;
+	debug("Reserving %dk for boot params() at: %08lx\n",
+			CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
+
+	/*
+	 * Finally, we set up a new (bigger) stack.
+	 *
+	 * Leave some safety gap for SP, force alignment on 16 byte boundary
+	 * Clear initial stack frame
+	 */
+	addr_sp -= 16;
+	addr_sp &= ~0xF;
+	s = (ulong *)addr_sp;
+	*s-- = 0;
+	*s-- = 0;
+	addr_sp = (ulong)s;
+	debug("Stack Pointer at: %08lx\n", addr_sp);
+
+	/*
+	 * Save local variables to board info struct
+	 */
+	bd->bi_memstart	= CONFIG_SYS_SDRAM_BASE;	/* start of DRAM */
+	bd->bi_memsize	= gd->ram_size;		/* size of DRAM in bytes */
+
+	memcpy(id, (void *)gd, sizeof(gd_t));
+
+	relocate_code(addr_sp, id, addr);
+
+	/* NOTREACHED - relocate_code() does not return */
+}
+
+/*
+ * This is the next part if the initialization sequence: we are now
+ * running from RAM and have a "normal" C environment, i. e. global
+ * data can be written, BSS has been cleared, the stack size in not
+ * that critical any more, etc.
+ */
+
+void board_init_r(gd_t *id, ulong dest_addr)
+{
+#ifndef CONFIG_SYS_NO_FLASH
+	ulong size;
+#endif
+	bd_t *bd;
+
+	gd = id;
+	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
+
+	debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
+
+	gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
+
+	monitor_flash_len = image_copy_end() - dest_addr;
+
+	serial_initialize();
+
+	bd = gd->bd;
+
+	/* The Malloc area is immediately below the monitor copy in DRAM */
+	mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
+			TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
+
+#ifndef CONFIG_SYS_NO_FLASH
+	/* configure available FLASH banks */
+	size = flash_init();
+	display_flash_config(size);
+	bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
+	bd->bi_flashsize = size;
+
+#if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE
+	bd->bi_flashoffset = monitor_flash_len;	/* reserved area for U-Boot */
+#else
+	bd->bi_flashoffset = 0;
+#endif
+#else
+	bd->bi_flashstart = 0;
+	bd->bi_flashsize = 0;
+	bd->bi_flashoffset = 0;
+#endif
+
+#ifdef CONFIG_CMD_NAND
+	puts("NAND:  ");
+	nand_init();		/* go init the NAND */
+#endif
+
+#if defined(CONFIG_CMD_ONENAND)
+	onenand_init();
+#endif
+
+	/* relocate environment function pointers etc. */
+	env_relocate();
+
+#if defined(CONFIG_PCI)
+	/*
+	 * Do pci configuration
+	 */
+	pci_init();
+#endif
+
+/** leave this here (after malloc(), environment and PCI are working) **/
+	/* Initialize stdio devices */
+	stdio_init();
+
+	jumptable_init();
+
+	/* Initialize the console (after the relocation and devices init) */
+	console_init_r();
+/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
+
+	/* Initialize from environment */
+	load_addr = getenv_ulong("loadaddr", 16, load_addr);
+
+#ifdef CONFIG_CMD_SPI
+	puts("SPI:   ");
+	spi_init();		/* go init the SPI */
+	puts("ready\n");
+#endif
+
+#if defined(CONFIG_MISC_INIT_R)
+	/* miscellaneous platform dependent initialisations */
+	misc_init_r();
+#endif
+
+#ifdef CONFIG_BITBANGMII
+	bb_miiphy_init();
+#endif
+#if defined(CONFIG_CMD_NET)
+	puts("Net:   ");
+	eth_initialize(gd->bd);
+#endif
+
+	/* main_loop() can return to retry autoboot, if so just run it again. */
+	for (;;)
+		main_loop();
+
+	/* NOTREACHED - no way out of command loop except booting */
+}
diff --git a/qemu/roms/u-boot/arch/mips/lib/bootm.c b/qemu/roms/u-boot/arch/mips/lib/bootm.c
new file mode 100644
index 000000000..71bb0d2a1
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/bootm.c
@@ -0,0 +1,252 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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/addrspace.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define	LINUX_MAX_ENVS		256
+#define	LINUX_MAX_ARGS		256
+
+#if defined(CONFIG_MALTA)
+#define mips_boot_malta		1
+#else
+#define mips_boot_malta		0
+#endif
+
+static int linux_argc;
+static char **linux_argv;
+static char *linux_argp;
+
+static char **linux_env;
+static char *linux_env_p;
+static int linux_env_idx;
+
+static ulong arch_get_sp(void)
+{
+	ulong ret;
+
+	__asm__ __volatile__("move %0, $sp" : "=r"(ret) : );
+
+	return ret;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+	ulong sp;
+
+	sp = arch_get_sp();
+	debug("## Current stack ends at 0x%08lx\n", sp);
+
+	/* adjust sp by 4K to be safe */
+	sp -= 4096;
+	lmb_reserve(lmb, sp, CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp);
+}
+
+static void linux_cmdline_init(void)
+{
+	linux_argc = 1;
+	linux_argv = (char **)UNCACHED_SDRAM(gd->bd->bi_boot_params);
+	linux_argv[0] = 0;
+	linux_argp = (char *)(linux_argv + LINUX_MAX_ARGS);
+}
+
+static void linux_cmdline_set(const char *value, size_t len)
+{
+	linux_argv[linux_argc] = linux_argp;
+	memcpy(linux_argp, value, len);
+	linux_argp[len] = 0;
+
+	linux_argp += len + 1;
+	linux_argc++;
+}
+
+static void linux_cmdline_dump(void)
+{
+	int i;
+
+	debug("## cmdline argv at 0x%p, argp at 0x%p\n",
+	      linux_argv, linux_argp);
+
+	for (i = 1; i < linux_argc; i++)
+		debug("   arg %03d: %s\n", i, linux_argv[i]);
+}
+
+static void boot_cmdline_linux(bootm_headers_t *images)
+{
+	const char *bootargs, *next, *quote;
+
+	linux_cmdline_init();
+
+	bootargs = getenv("bootargs");
+	if (!bootargs)
+		return;
+
+	next = bootargs;
+
+	while (bootargs && *bootargs && linux_argc < LINUX_MAX_ARGS) {
+		quote = strchr(bootargs, '"');
+		next = strchr(bootargs, ' ');
+
+		while (next && quote && quote < next) {
+			/*
+			 * we found a left quote before the next blank
+			 * now we have to find the matching right quote
+			 */
+			next = strchr(quote + 1, '"');
+			if (next) {
+				quote = strchr(next + 1, '"');
+				next = strchr(next + 1, ' ');
+			}
+		}
+
+		if (!next)
+			next = bootargs + strlen(bootargs);
+
+		linux_cmdline_set(bootargs, next - bootargs);
+
+		if (*next)
+			next++;
+
+		bootargs = next;
+	}
+
+	linux_cmdline_dump();
+}
+
+static void linux_env_init(void)
+{
+	linux_env = (char **)(((ulong) linux_argp + 15) & ~15);
+	linux_env[0] = 0;
+	linux_env_p = (char *)(linux_env + LINUX_MAX_ENVS);
+	linux_env_idx = 0;
+}
+
+static void linux_env_set(const char *env_name, const char *env_val)
+{
+	if (linux_env_idx < LINUX_MAX_ENVS - 1) {
+		linux_env[linux_env_idx] = linux_env_p;
+
+		strcpy(linux_env_p, env_name);
+		linux_env_p += strlen(env_name);
+
+		if (mips_boot_malta) {
+			linux_env_p++;
+			linux_env[++linux_env_idx] = linux_env_p;
+		} else {
+			*linux_env_p++ = '=';
+		}
+
+		strcpy(linux_env_p, env_val);
+		linux_env_p += strlen(env_val);
+
+		linux_env_p++;
+		linux_env[++linux_env_idx] = 0;
+	}
+}
+
+static void boot_prep_linux(bootm_headers_t *images)
+{
+	char env_buf[12];
+	const char *cp;
+	ulong rd_start, rd_size;
+
+#ifdef CONFIG_MEMSIZE_IN_BYTES
+	sprintf(env_buf, "%lu", (ulong)gd->ram_size);
+	debug("## Giving linux memsize in bytes, %lu\n", (ulong)gd->ram_size);
+#else
+	sprintf(env_buf, "%lu", (ulong)(gd->ram_size >> 20));
+	debug("## Giving linux memsize in MB, %lu\n",
+	      (ulong)(gd->ram_size >> 20));
+#endif /* CONFIG_MEMSIZE_IN_BYTES */
+
+	rd_start = UNCACHED_SDRAM(images->initrd_start);
+	rd_size = images->initrd_end - images->initrd_start;
+
+	linux_env_init();
+
+	linux_env_set("memsize", env_buf);
+
+	sprintf(env_buf, "0x%08lX", rd_start);
+	linux_env_set("initrd_start", env_buf);
+
+	sprintf(env_buf, "0x%lX", rd_size);
+	linux_env_set("initrd_size", env_buf);
+
+	sprintf(env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart));
+	linux_env_set("flash_start", env_buf);
+
+	sprintf(env_buf, "0x%X", (uint) (gd->bd->bi_flashsize));
+	linux_env_set("flash_size", env_buf);
+
+	cp = getenv("ethaddr");
+	if (cp)
+		linux_env_set("ethaddr", cp);
+
+	cp = getenv("eth1addr");
+	if (cp)
+		linux_env_set("eth1addr", cp);
+
+	if (mips_boot_malta) {
+		sprintf(env_buf, "%un8r", gd->baudrate);
+		linux_env_set("modetty0", env_buf);
+	}
+}
+
+static void boot_jump_linux(bootm_headers_t *images)
+{
+	typedef void __noreturn (*kernel_entry_t)(int, ulong, ulong, ulong);
+	kernel_entry_t kernel = (kernel_entry_t) images->ep;
+	ulong linux_extra = 0;
+
+	debug("## Transferring control to Linux (at address %p) ...\n", kernel);
+
+	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+	if (mips_boot_malta)
+		linux_extra = gd->ram_size;
+
+	/* we assume that the kernel is in place */
+	printf("\nStarting kernel ...\n\n");
+
+	kernel(linux_argc, (ulong)linux_argv, (ulong)linux_env, linux_extra);
+}
+
+int do_bootm_linux(int flag, int argc, char * const argv[],
+			bootm_headers_t *images)
+{
+	/* No need for those on MIPS */
+	if (flag & BOOTM_STATE_OS_BD_T)
+		return -1;
+
+	if (flag & BOOTM_STATE_OS_CMDLINE) {
+		boot_cmdline_linux(images);
+		return 0;
+	}
+
+	if (flag & BOOTM_STATE_OS_PREP) {
+		boot_prep_linux(images);
+		return 0;
+	}
+
+	if (flag & BOOTM_STATE_OS_GO) {
+		boot_jump_linux(images);
+		return 0;
+	}
+
+	boot_cmdline_linux(images);
+	boot_prep_linux(images);
+	boot_jump_linux(images);
+
+	/* does not return */
+	return 1;
+}
diff --git a/qemu/roms/u-boot/arch/mips/lib/io.c b/qemu/roms/u-boot/arch/mips/lib/io.c
new file mode 100644
index 000000000..b2d4a094d
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/io.c
@@ -0,0 +1,12 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * mips_io_port_base is the begin of the address space to which x86 style
+ * I/O ports are mapped.
+ */
+const unsigned long mips_io_port_base = -1;
diff --git a/qemu/roms/u-boot/arch/mips/lib/libgcc.h b/qemu/roms/u-boot/arch/mips/lib/libgcc.h
new file mode 100644
index 000000000..05909d58e
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/libgcc.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_LIBGCC_H
+#define __ASM_LIBGCC_H
+
+#include <asm/byteorder.h>
+
+typedef int word_type __attribute__ ((mode (__word__)));
+
+#ifdef __BIG_ENDIAN
+struct DWstruct {
+	int high, low;
+};
+#elif defined(__LITTLE_ENDIAN)
+struct DWstruct {
+	int low, high;
+};
+#else
+#error I feel sick.
+#endif
+
+typedef union {
+	struct DWstruct s;
+	long long ll;
+} DWunion;
+
+#endif /* __ASM_LIBGCC_H */
diff --git a/qemu/roms/u-boot/arch/mips/lib/lshrdi3.c b/qemu/roms/u-boot/arch/mips/lib/lshrdi3.c
new file mode 100644
index 000000000..bb340accb
--- /dev/null
+++ b/qemu/roms/u-boot/arch/mips/lib/lshrdi3.c
@@ -0,0 +1,25 @@
+#include "libgcc.h"
+
+long long __lshrdi3(long long u, word_type b)
+{
+	DWunion uu, w;
+	word_type bm;
+
+	if (b == 0)
+		return u;
+
+	uu.ll = u;
+	bm = 32 - b;
+
+	if (bm <= 0) {
+		w.s.high = 0;
+		w.s.low = (unsigned int) uu.s.high >> -bm;
+	} else {
+		const unsigned int carries = (unsigned int) uu.s.high << bm;
+
+		w.s.high = (unsigned int) uu.s.high >> b;
+		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
+	}
+
+	return w.ll;
+}