[U-Boot] [PATCH 03/10] nds32: add nds32 arch with lib support
Macpaul Lin
macpaul at andestech.com
Fri Jun 11 11:34:37 CEST 2010
Add nds32 architecture with generic lib C files support.
Signed-off-by: Macpaul Lin <macpaul at andestech.com>
---
arch/nds32/lib/Makefile | 53 ++++++++
arch/nds32/lib/board.c | 341 +++++++++++++++++++++++++++++++++++++++++++++++
arch/nds32/lib/bootm.c | 209 +++++++++++++++++++++++++++++
3 files changed, 603 insertions(+), 0 deletions(-)
create mode 100644 arch/nds32/lib/Makefile
create mode 100644 arch/nds32/lib/board.c
create mode 100644 arch/nds32/lib/bootm.c
diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile
new file mode 100644
index 0000000..0fe0351
--- /dev/null
+++ b/arch/nds32/lib/Makefile
@@ -0,0 +1,53 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# Copyright (C) 2006 Andes Technology Corporation
+# Shawn Lin, Andes Technology Corporation <nobuhiro at andestech.com>
+# Macpaul Lin, Andes Technology Corporation <macpaul at andestech.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+#
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(ARCH).a
+
+OBJS := board.o bootm.o
+SOBJS :=
+
+all: $(LIB)
+
+$(LIB): $(OBJS) $(SOBJS)
+ $(AR) crv $@ $^
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/nds32/lib/board.c b/arch/nds32/lib/board.c
new file mode 100644
index 0000000..d70d8ab
--- /dev/null
+++ b/arch/nds32/lib/board.c
@@ -0,0 +1,341 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * Copyright 2006 (C) Andes Technology Corporation
+ * Shawn Lin, Andes Technology Corporation <nobuhiro at andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul at andestech.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <stdio_dev.h>
+#include <timestamp.h>
+#include <version.h>
+#include <net.h>
+#include <version.h>
+#include <asm/global_data.h>
+#include <asm/andesboot.h>
+//#include <andes.h>
+
+//volatile bd_t sg_bd;
+//volatile gd_t g_gd;
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING ""
+#endif
+
+const char version_string[] =
+ U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"CONFIG_IDENT_STRING;
+
+#ifdef CONFIG_DRIVER_CS8900
+extern void cs8900_get_enetaddr(uchar *addr);
+#endif
+
+#ifdef CONFIG_EPXA1DB_MAC_ADDR
+extern void epxa1db_set_mac_addr(bd_t* bd);
+#endif
+
+/*
+ * Breath some life into the board...
+ *
+ * Initialize an SMC for serial comms, and carry out some hardware
+ * tests.
+ *
+ * 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.
+ */
+
+void LED_Show(ulong u32Val)
+{
+ volatile ulong u32i;
+ LED_ShowHex(u32Val);
+ for(u32i=0; u32i<0x100000; u32i++); // delay
+}
+
+inline void wait_ms(unsigned long ms);
+
+struct NS16550 {
+ unsigned char rbr; /* 0 */
+ int pad1:24;
+ unsigned char ier; /* 1 */
+ int pad2:24;
+ unsigned char fcr; /* 2 */
+ int pad3:24;
+ unsigned char lcr; /* 3 */
+ int pad4:24;
+ unsigned char mcr; /* 4 */
+ int pad5:24;
+ unsigned char lsr; /* 5 */
+ int pad6:24;
+ unsigned char msr; /* 6 */
+ int pad7:24;
+ unsigned char scr; /* 7 */
+ int pad8:24;
+#if defined(CONFIG_OMAP)
+ unsigned char mdr1; /* mode select reset TL16C750*/
+#endif
+#ifdef CONFIG_OMAP1510
+ int pad9:24;
+ unsigned long pad[10];
+ unsigned char osc_12m_sel;
+ int pad10:24;
+#endif
+} __attribute__ ((packed));
+
+
+void test_func(void)
+{
+ struct NS16550 *pND16500 = (struct NS16550*)0x98a00000;
+ memset(pND16500, 0, sizeof(struct NS16550));
+
+ printf("st size: %X \r\n", sizeof(struct NS16550));
+
+ printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier);
+ pND16500->ier = 0xAA;
+ printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier);
+ pND16500->ier = 0x55AA;
+ printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier);
+
+ printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr);
+ pND16500->lsr = 0xAA;
+ printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr);
+ pND16500->lsr = 0x55AA;
+ printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr);
+ printf("pad6 no addr val: %X \r\n", pND16500->pad6);
+}
+
+/*
+ * 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 dependent #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);
+
+int print_cpuinfo (void);
+
+init_fnc_t *init_sequence[] = {
+#if defined(CONFIG_ARCH_CPU_INIT)
+ arch_cpu_init, /* basic arch cpu dependent setup */
+#endif
+// board_init, /* basic board dependent setup */
+#if defined(CONFIG_USE_IRQ)
+ interrupt_init, /* set up exceptions */
+#endif
+// timer_init, /* initialize timer */
+#ifdef CONFIG_FSL_ESDHC
+ get_clocks,
+#endif
+ env_init, /* initialize environment */
+// init_baudrate, /* initialze baudrate settings */
+ serial_init, /* serial communications setup */
+ console_init_f, /* stage 1 init of console */
+// display_banner, /* say that we are here */
+#if defined(CONFIG_DISPLAY_CPUINFO)
+ print_cpuinfo, /* display cpu info (and speed) */
+#endif
+#if defined(CONFIG_DISPLAY_BOARDINFO)
+ checkboard, /* display board info */
+#endif
+#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
+ init_func_i2c,
+#endif
+// dram_init, /* configure available RAM banks */
+//#if defined(CONFIG_CMD_PCI) || defined (CONFIG_PCI)
+// pci_init,
+//#endif
+ display_dram_config,
+ NULL,
+};
+
+void start_andesboot(void)
+{
+ init_fnc_t **init_fnc_ptr;
+ char *s;
+
+ ulong size;
+
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t*)(_andesboot_start - CONFIG_MALLOC_SIZE - sizeof(gd_t));
+ /* compiler optimization barrier needed for GCC >= 3.4 */
+ __asm__ __volatile__("": : :"memory");
+
+ memset ((void*)gd, 0, sizeof (gd_t));
+ gd->bd = (bd_t*)((char*)gd - sizeof(bd_t));
+ memset (gd->bd, 0, sizeof (bd_t));
+
+ gd->flags |= GD_FLG_RELOC;
+
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ if ((*init_fnc_ptr)() != 0) {
+ hang ();
+ }
+ }
+
+#if 0
+ /* set up bd strucuture */
+
+ /* basic cpu dependent setup */
+ cpu_init(); /* reserve stack size in DRAM, prepare for heap setup*/
+#endif
+ /* basic board dependent setup */
+ board_init(gd->bd); /* set arch-number & boot-params*/
+#if 0
+ /* initialize environment */
+// env_init(); /* now refer to the env_flash.c */
+
+ /* serial communications setup */
+ serial_init();
+#endif
+ display_banner(gd->bd);
+
+test_func();
+
+ /* get the devices list going. */
+ stdio_init ();
+
+ /* set up execptions */
+ interrupt_init();
+#if 0
+ /* configure available RAM banks */
+ dram_init(gd->bd);
+#endif
+ display_dram_config(gd->bd);
+ /* configure available FLASH banks */
+
+#ifndef CONFIG_SYS_NO_FLASH
+ /* configure available FLASH banks */
+ display_flash_config (flash_init ());
+#endif /* CONFIG_SYS_NO_FLASH */
+
+//#endif
+
+ /* andesboot_end is defined in the board-specific linker script */
+ mem_malloc_init(_andesboot_start - CONFIG_MALLOC_SIZE, CONFIG_MALLOC_SIZE);
+
+ /* initialize environment */
+ env_relocate();
+
+ /* IP Address */
+ gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+ /* MAC Address */
+ {
+ int i;
+ ulong reg;
+ char *s, *e;
+ char tmp[64];
+
+ i = getenv_r ("ethaddr", tmp, sizeof (tmp));
+ s = (i > 0) ? tmp : NULL;
+
+ for (reg = 0; reg < 6; ++reg) {
+ gd->bd->bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
+ if (s)
+ s = (*e) ? e + 1 : e;
+ }
+ }
+
+#if defined(CONFIG_PCI)
+ pci_init(); /* Do pci configuration */
+#endif
+
+ /* enable exceptions */
+ enable_interrupts();
+
+/*
+ * FIXME: this should probably be rationalised into a standard call for
+ * each board, e.g. enet_mac_init() - but this'll do for now.
+ */
+#ifdef BOARD_POST_INIT // no defined
+ board_post_init(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 */
+}
+
+void hang(void)
+{
+ puts ("### ERROR ### Please RESET the board ###\n");
+ for (;;);
+}
+
+
+void pretty_print_size(ulong size)
+{
+ if (size > 0x100000)
+ printf("%ld MB", size / 0x100000);
+ else
+ printf("%ld KB", size / 0x400);
+}
+
+void display_banner(bd_t *bd)
+{
+ printf ("\n\n%s\n\n", version_string);
+ printf ("ANDES maintain version %d.%d. Clock:%uMHz\n",VERSION_MAJOR_NUM,VERSION_MINOR_NUM,VERSION_CLOCK/1000000);
+ printf("ANDESboot code: %08lx -> %08lx\n", _andesboot_start, _andesboot_end);
+
+#ifdef CONFIG_USE_IRQ
+ printf("IRQ Stack: %08lx\n", IRQ_STACK_START);
+ printf("FIQ Stack: %08lx\n", FIQ_STACK_START);
+#endif
+}
+
+void display_dram_config(bd_t *bd)
+{
+ int i;
+
+ printf("DRAM Configuration:\n");
+
+ for(i=0; i<CONFIG_NR_DRAM_BANKS; i++)
+ {
+ printf("Bank #%d: %08lx ", i, bd->bi_dram[i].start);
+ pretty_print_size(bd->bi_dram[i].size);
+ printf("\n");
+ }
+}
+
+#ifndef CONFIG_SYS_NO_FLASH
+void display_flash_config (ulong size)
+{
+ puts ("Flash: ");
+ print_size (size, "\n");
+}
+#endif /* CONFIG_SYS_NO_FLASH */
+
diff --git a/arch/nds32/lib/bootm.c b/arch/nds32/lib/bootm.c
new file mode 100644
index 0000000..c0bbab1
--- /dev/null
+++ b/arch/nds32/lib/bootm.c
@@ -0,0 +1,209 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt at psyent.com>
+ *
+ * Copyright 2006 (C) Andes Technology Corporation
+ * Shawn Lin, Andes Technology Corporation <nobuhiro at andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul at andestech.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/setup.h>
+#include <asm/andesboot.h>
+#include <command.h>
+#include <asm/byteorder.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+extern image_header_t header; /* common/cmd_bootm.c */
+#undef DEBUG
+static struct tag *params;
+
+static void setup_start_tag(void)
+{
+ params = (struct tag *)gd->bd->bi_boot_params;
+
+ params->hdr.tag = ATAG_CORE;
+ params->hdr.size = tag_size(tag_core);
+
+ params->u.core.flags = 0;
+ params->u.core.pagesize = 0;
+ params->u.core.rootdev = 0;
+
+ params = tag_next(params);
+}
+
+
+static void setup_memory_tags(void)
+{
+ int i;
+
+ for(i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+ {
+ params->hdr.tag = ATAG_MEM;
+ params->hdr.size = tag_size(tag_mem32);
+
+ params->u.mem.start = gd->bd->bi_dram[i].start;
+ params->u.mem.size = gd->bd->bi_dram[i].size;
+#ifdef not_complete_yet
+ printf("params->u.mem.start = %x\n", params->u.mem.start);
+ printf("params->u.mem.size = %x\n", params->u.mem.size);
+#endif /* end_of_not */
+ params = tag_next(params);
+ }
+}
+
+static void setup_commandline_tag(char *commandline)
+{
+ char *p;
+
+ if (commandline == NULL)
+ {
+ return;
+ }
+ /* eat leading white space */
+ for(p = commandline; *p == ' '; p++)
+ ;
+
+ /* skip non-existent command lines so the kernel will still
+ * use its default command line.
+ */
+ if(*p == '\0')
+ return;
+
+ params->hdr.tag = ATAG_CMDLINE;
+ params->hdr.size = (sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2;
+
+ strcpy(params->u.cmdline.cmdline, p);
+
+ params = tag_next(params);
+}
+
+
+static void setup_clock_tags(void)
+{
+#if 0
+ 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->cpu_hz;
+ params = tag_next(params);
+#endif
+}
+
+
+static void setup_ethernet_tag(char *addr, int index)
+{
+#if 0
+ 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;
+ }
+
+ params = tag_next(params);
+#endif
+}
+
+static void setup_ethernet_tags(void)
+{
+#if 0
+ 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);
+
+ params = tag_next(params);
+#endif
+}
+
+static void setup_end_tag(void)
+{
+ params->hdr.tag = ATAG_NONE;
+ params->hdr.size = 0;
+}
+
+
+void show_boot_progress(int progress)
+{
+ //printf("booting, please wait... \r\n");
+}
+
+static void setup_ramdisk_tag(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;
+
+ params = tag_next(params);
+}
+
+
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+ void (*theKernel)(int magic, void *tagtable);
+ char *commandline = getenv("bootargs");
+
+ if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+ return 1;
+
+ theKernel = (void *)images->ep;
+ show_boot_progress (1);
+
+ setup_start_tag();
+ setup_memory_tags();
+ if (images->rd_start) {
+ setup_ramdisk_tag(images->rd_start, images->rd_end);
+ }
+ setup_commandline_tag(commandline);
+ setup_end_tag();
+
+ printf("\nStarting kernel at %p (params at %p)...\n\n",
+ theKernel, params);
+
+ cleanup_before_linux();
+ theKernel(0, params);
+ /* does not return */
+
+ return 1;
+
+}
--
1.7.1
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