Add support for Siemens SX1 mobile phone;

[karo-tx-uboot.git] / board / sx1 / sx1.c

diff --git a/board/sx1/sx1.c b/board/sx1/sx1.c
new file mode 100644 (file)
index 0000000..c14a385
--- /dev/null
+++ b/board/sx1/sx1.c
@@ -0,0 +1,125 @@
+/*
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.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>
+
+static void flash__init (void);
+static void ether__init (void);
+
+static inline void delay (unsigned long loops)
+{
+       __asm__ volatile ("1:\n"
+                         "subs %0, %1, #1\n"
+                         "bne 1b":"=r" (loops):"0" (loops));
+}
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+       DECLARE_GLOBAL_DATA_PTR;
+
+       /* arch number of SX1 Board */
+       gd->bd->bi_arch_number = 241;
+
+       /* adress of boot parameters */
+       gd->bd->bi_boot_params = 0x10000100;
+
+/* kk - this speeds up your boot a quite a bit.         However to make it
+ *  work, you need make sure your kernel startup flush bug is fixed.
+ *  ... rkw ...
+ */
+       icache_enable ();
+
+       flash__init ();
+       ether__init ();
+       return 0;
+}
+
+
+int misc_init_r (void)
+{
+       /* volatile ushort *gdir = (ushort *) (GPIO_DIR_CONTROL_REG); */
+       /* volatile ushort *mdir = (ushort *) (MPUIO_DIR_CONTROL_REG); */
+
+       /* setup gpio direction to match board (no floats!) */
+       /**gdir = 0xCFF9; */
+       /**mdir = 0x103F; */
+
+       return (0);
+}
+
+/******************************
+ Routine:
+ Description:
+******************************/
+static void flash__init (void)
+{
+#define CS0_CHIP_SELECT_REG 0xfffecc10
+#define CS3_CHIP_SELECT_REG 0xfffecc1c
+#define EMIFS_GlB_Config_REG 0xfffecc0c
+
+       unsigned int regval;
+
+       regval = *((volatile unsigned int *) EMIFS_GlB_Config_REG);
+       regval = regval | 0x0001;       /* Turn off write protection for flash devices. */
+       if (regval & 0x0002) {
+               regval = regval & 0xfffd;       /* Swap CS0 and CS3 so that flash is visible at 0x0 and eeprom at 0x0c000000. */
+               /* If, instead, you want to reference flash at 0x0c000000, then it seemed the following were necessary. */
+               /* *((volatile unsigned int *)CS0_CHIP_SELECT_REG) = 0x202090; / * Overrides head.S setting of 0x212090 */
+               /* *((volatile unsigned int *)CS3_CHIP_SELECT_REG) = 0x202090; / * Let's flash chips be fully functional. */
+       }
+       *((volatile unsigned int *) EMIFS_GlB_Config_REG) = regval;
+}
+
+
+/******************************
+ Routine:
+ Description:
+******************************/
+static void ether__init (void)
+{
+#define ETH_CONTROL_REG 0x0800000b
+       /* take the Ethernet controller out of reset and wait
+        * for the EEPROM load to complete.
+        */
+       *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
+       udelay (3);
+}
+
+
+int dram_init (void)
+{
+       DECLARE_GLOBAL_DATA_PTR;
+
+       gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+       gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+       return 0;
+}