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authorAubrey.Li <aubrey.adi@gmail.com>2007-03-09 13:38:44 +0800
committerAubrey.Li <aubrey.adi@gmail.com>2007-03-09 13:38:44 +0800
commit3f0606ad0b5639f7f22848fe5b4574e754d0470f (patch)
tree3cb4fd316134b6a176607ad61739720aeb971a5a /board/bf533-stamp/bf533-stamp.c
parenteb92f613556800f7483666db09d9a237ad911d4a (diff)
downloadu-boot-linaro-stable-3f0606ad0b5639f7f22848fe5b4574e754d0470f.tar.gz
[Blackfin]PATCH-1/2]: Remove obsolete blackfin port and add bf533 platform support
Diffstat (limited to 'board/bf533-stamp/bf533-stamp.c')
-rw-r--r--board/bf533-stamp/bf533-stamp.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/board/bf533-stamp/bf533-stamp.c b/board/bf533-stamp/bf533-stamp.c
new file mode 100644
index 000000000..3e074e3a1
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.c
@@ -0,0 +1,275 @@
+/*
+ * U-boot - stamp.c STAMP board specific routines
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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/mem_init.h>
+#include "bf533-stamp.h"
+
+#define STATUS_LED_OFF 0
+#define STATUS_LED_ON 1
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+int checkboard(void)
+{
+#if (BFIN_CPU == ADSP_BF531)
+ printf("CPU: ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
+#elif (BFIN_CPU == ADSP_BF532)
+ printf("CPU: ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
+#else
+ printf("CPU: ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
+#endif
+ printf("Board: ADI BF533 Stamp board\n");
+ printf(" Support: http://blackfin.uclinux.org/\n");
+ return 0;
+}
+
+long int initdram(int board_type)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+#ifdef DEBUG
+ printf("SDRAM attributes:\n");
+ printf
+ (" tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; "
+ "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11),
+ (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2));
+ printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
+ printf("Bank size = %d MB\n", 128);
+#endif
+ gd->bd->bi_memstart = CFG_SDRAM_BASE;
+ gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
+ return (gd->bd->bi_memsize);
+}
+
+void swap_to(int device_id)
+{
+
+ if (device_id == ETHERNET) {
+ *pFIO_DIR = PF0;
+ __builtin_bfin_ssync();
+ *pFIO_FLAG_S = PF0;
+ __builtin_bfin_ssync();
+ } else if (device_id == FLASH) {
+ *pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0);
+ *pFIO_FLAG_S = (PF4 | PF3 | PF2);
+ *pFIO_MASKA_D = (PF8 | PF6 | PF5);
+ *pFIO_MASKB_D = (PF7);
+ *pFIO_POLAR = (PF8 | PF6 | PF5);
+ *pFIO_EDGE = (PF8 | PF7 | PF6 | PF5);
+ *pFIO_INEN = (PF8 | PF7 | PF6 | PF5);
+ *pFIO_FLAG_D = (PF4 | PF3 | PF2);
+ __builtin_bfin_ssync();
+ } else {
+ printf("Unknown bank to switch\n");
+ }
+
+ return;
+}
+
+#if defined(CONFIG_MISC_INIT_R)
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+ int i;
+ int cf_stat = 0;
+
+ /* Check whether CF card is inserted */
+ *pFIO_EDGE = FIO_EDGE_CF_BITS;
+ *pFIO_POLAR = FIO_POLAR_CF_BITS;
+ for (i = 0; i < 0x300; i++)
+ asm("nop;");
+
+ if ((*pFIO_FLAG_S) & CF_STAT_BITS) {
+ cf_stat = 0;
+ } else {
+ cf_stat = 1;
+ }
+
+ *pFIO_EDGE = FIO_EDGE_BITS;
+ *pFIO_POLAR = FIO_POLAR_BITS;
+
+ if (cf_stat) {
+ printf("Booting from COMPACT flash\n");
+
+ /* Set cycle time for CF */
+ *(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL;
+
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+
+ serial_setbrg();
+ ide_init();
+
+ setenv("bootargs", "");
+ setenv("bootcmd",
+ "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000");
+ } else {
+ printf("Booting from FLASH\n");
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_STAMP_CF
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+ /*
+ * Set PF1 PF0 respectively to 0 1 to divert address
+ * to the expansion memory banks
+ */
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ *(addr) = val;
+ __builtin_bfin_ssync();
+
+ /* Setback PF1 PF0 to 0 0 to address external
+ * memory banks */
+ *(volatile unsigned short *)pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+ volatile unsigned char c;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ c = *(addr);
+ __builtin_bfin_ssync();
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+
+ return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+ int i;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ for (i = 0; i < words; i++) {
+ *(sect_buf + i) = *(addr);
+ __builtin_bfin_ssync();
+ }
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+ int i;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ for (i = 0; i < words; i++) {
+ *(addr) = *(sect_buf + i);
+ __builtin_bfin_ssync();
+ }
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+#endif
+
+void stamp_led_set(int LED1, int LED2, int LED3)
+{
+ *pFIO_INEN &= ~(PF2 | PF3 | PF4);
+ *pFIO_DIR |= (PF2 | PF3 | PF4);
+
+ if (LED1 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF2;
+ else
+ *pFIO_FLAG_C = PF2;
+ if (LED2 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF3;
+ else
+ *pFIO_FLAG_C = PF3;
+ if (LED3 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF4;
+ else
+ *pFIO_FLAG_C = PF4;
+ __builtin_bfin_ssync();
+}
+
+void show_boot_progress(int status)
+{
+ switch (status) {
+ case 1:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON);
+ break;
+ case 2:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF);
+ break;
+ case 3:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON);
+ break;
+ case 4:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF);
+ break;
+ case 5:
+ case 6:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON);
+ break;
+ case 7:
+ case 8:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF);
+ break;
+ case 9:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_OFF);
+ break;
+ default:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON);
+ break;
+ }
+}