#include <common.h>
#include <asm/processor.h>
+#include <asm/io.h>
#include <command.h>
#include <malloc.h>
#define FPGA_DEBUG
#endif
+DECLARE_GLOBAL_DATA_PTR;
+
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern void lxt971_no_sleep(void);
int N_AU_IMAGES = (sizeof(au_image) / sizeof(au_image[0]));
-
/* Prototypes */
int gunzip(void *, int, unsigned char *, unsigned long *);
-
int board_early_init_f (void)
{
/*
mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
mtdcr(uicpr, 0xFFFFFF99); /* set int polarities */
mtdcr(uictr, 0x10000000); /* set int trigger levels */
- mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/
+ mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest prio */
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
/*
- * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
+ * EBC Configuration Register: set ready timeout to
+ * 512 ebc-clks -> ca. 15 us
*/
mtebc (epcr, 0xa8400000); /* ebc always driven */
return 0;
}
-
-int misc_init_f (void)
-{
- return 0; /* dummy implementation */
-}
-
-
int misc_init_r (void)
{
- volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
- volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
+ unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
+ unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
unsigned char *dst;
ulong len = sizeof(fpgadata);
int status;
int index;
int i;
- dst = malloc(CFG_FPGA_MAX_SIZE);
- if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
+ /* adjust flash start and offset */
+ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
+ gd->bd->bi_flashoffset = 0;
+
+ dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
+ if (gunzip (dst, CONFIG_SYS_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
printf ("GUNZIP ERROR - must RESET board to recover\n");
do_reset (NULL, 0, 0, NULL);
}
printf("\nFPGA: Booting failed ");
switch (status) {
case ERROR_FPGA_PRG_INIT_LOW:
- printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
+ printf("(Timeout: INIT not low "
+ "after asserting PROGRAM*)\n");
break;
case ERROR_FPGA_PRG_INIT_HIGH:
- printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
+ printf("(Timeout: INIT not high "
+ "after deasserting PROGRAM*)\n");
break;
case ERROR_FPGA_PRG_DONE:
- printf("(Timeout: DONE not high after programming FPGA)\n ");
+ printf("(Timeout: DONE not high "
+ "after programming FPGA)\n");
break;
}
/*
* Reset external DUARTs
*/
- out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */
- udelay(10); /* wait 10us */
- out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */
- udelay(1000); /* wait 1ms */
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_DUART_RST);
+ udelay(10);
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_DUART_RST);
+ udelay(1000);
/*
* Set NAND-FLASH GPIO signals to default
*/
- out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));
- out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);
+ out_be32((void*)GPIO0_OR,
+ in_be32((void*)GPIO0_OR) & ~(CONFIG_SYS_NAND_CLE | CONFIG_SYS_NAND_ALE));
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_NAND_CE);
+
+ /*
+ * Setup EEPROM write protection
+ */
+ out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
+ out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CONFIG_SYS_EEPROM_WP);
/*
* Enable interrupts in exar duart mcr[3]
*/
- *duart0_mcr = 0x08;
- *duart1_mcr = 0x08;
+ out_8(duart0_mcr, 0x08);
+ out_8(duart1_mcr, 0x08);
return (0);
}
-
/*
* Check Board Identity:
*/
return 0;
}
-
-long int initdram (int board_type)
-{
- unsigned long val;
-
- mtdcr(memcfga, mem_mb0cf);
- val = mfdcr(memcfgd);
-
-#if 0
- printf("\nmb0cf=%x\n", val); /* test-only */
- printf("strap=%x\n", mfdcr(strap)); /* test-only */
-#endif
-
- return (4*1024*1024 << ((val & 0x000e0000) >> 17));
-}
-
-
-int testdram (void)
-{
- /* TODO: XXX XXX XXX */
- printf ("test: 16 MB - ok\n");
-
- return (0);
-}
-
-
#ifdef CONFIG_IDE_RESET
void ide_set_reset(int on)
{
volatile unsigned short *fpga_mode =
- (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL);
+ (unsigned short *)((ulong)CONFIG_SYS_FPGA_BASE_ADDR + CONFIG_SYS_FPGA_CTRL);
/*
* Assert or deassert CompactFlash Reset Pin
*/
if (on) { /* assert RESET */
- *fpga_mode &= ~(CFG_FPGA_CTRL_CF_RESET);
+ *fpga_mode &= ~(CONFIG_SYS_FPGA_CTRL_CF_RESET);
} else { /* release RESET */
- *fpga_mode |= CFG_FPGA_CTRL_CF_RESET;
+ *fpga_mode |= CONFIG_SYS_FPGA_CTRL_CF_RESET;
}
}
#endif /* CONFIG_IDE_RESET */
-
-#if defined(CONFIG_CMD_NAND)
-#include <linux/mtd/nand_legacy.h>
-extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
-
-void nand_init(void)
+void reset_phy(void)
{
- nand_probe(CFG_NAND_BASE);
- if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
- print_size(nand_dev_desc[0].totlen, "\n");
- }
-}
-#endif
+#ifdef CONFIG_LXT971_NO_SLEEP
+ /*
+ * Disable sleep mode in LXT971
+ */
+ lxt971_no_sleep();
+#endif
+}
-#ifdef CONFIG_AUTO_UPDATE_SHOW
-void board_auto_update_show(int au_active)
+#if defined(CONFIG_SYS_EEPROM_WREN)
+/* Input: <dev_addr> I2C address of EEPROM device to enable.
+ * <state> -1: deliver current state
+ * 0: disable write
+ * 1: enable write
+ * Returns: -1: wrong device address
+ * 0: dis-/en- able done
+ * 0/1: current state if <state> was -1.
+ */
+int eeprom_write_enable (unsigned dev_addr, int state)
{
- if (au_active) {
- printf("\n Dies ist die board-funktion: Updating!!!\n");
+ if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) {
+ return -1;
} else {
- printf("\n Dies ist die board-funktion: Updating done!!!\n");
+ switch (state) {
+ case 1:
+ /* Enable write access, clear bit GPIO0. */
+ out_be32((void*)GPIO0_OR,
+ in_be32((void*)GPIO0_OR) & ~CONFIG_SYS_EEPROM_WP);
+ state = 0;
+ break;
+ case 0:
+ /* Disable write access, set bit GPIO0. */
+ out_be32((void*)GPIO0_OR,
+ in_be32((void*)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
+ state = 0;
+ break;
+ default:
+ /* Read current status back. */
+ state = (0 == (in_be32((void*)GPIO0_OR) &
+ CONFIG_SYS_EEPROM_WP));
+ break;
+ }
}
+ return state;
}
-#endif
-void reset_phy(void)
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
-#ifdef CONFIG_LXT971_NO_SLEEP
+ int query = argc == 1;
+ int state = 0;
+
+ if (query) {
+ /* Query write access state. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, -1);
+ if (state < 0) {
+ puts ("Query of write access state failed.\n");
+ } else {
+ printf ("Write access for device 0x%0x is %sabled.\n",
+ CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis");
+ state = 0;
+ }
+ } else {
+ if ('0' == argv[1][0]) {
+ /* Disable write access. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 0);
+ } else {
+ /* Enable write access. */
+ state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 1);
+ }
+ if (state < 0) {
+ puts ("Setup of write access state failed.\n");
+ }
+ }
- /*
- * Disable sleep mode in LXT971
- */
- lxt971_no_sleep();
-#endif
+ return state;
}
+
+U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
+ "eepwren - Enable / disable / query EEPROM write access\n",
+ NULL);
+#endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */
projects / karo-tx-uboot.git / blobdiff