summaryrefslogtreecommitdiff
path: root/board/esd/cpci405/cpci405.c
diff options
context:
space:
mode:
authorstroese <stroese>2003-03-20 15:31:19 +0000
committerstroese <stroese>2003-03-20 15:31:19 +0000
commit6f4474e87b57012cb790229ad7538df9b01507bc (patch)
treeec65e0ecb79c4f7ec16c7b4af1ecac71d9f0f3cd /board/esd/cpci405/cpci405.c
parent97a43d641de267eb715888a6b8aba43f83327b93 (diff)
downloadu-boot-imx-6f4474e87b57012cb790229ad7538df9b01507bc.zip
u-boot-imx-6f4474e87b57012cb790229ad7538df9b01507bc.tar.gz
u-boot-imx-6f4474e87b57012cb790229ad7538df9b01507bc.tar.bz2
CPCI4052 update (support for revision 3).
Diffstat (limited to 'board/esd/cpci405/cpci405.c')
-rw-r--r--board/esd/cpci405/cpci405.c115
1 files changed, 83 insertions, 32 deletions
diff --git a/board/esd/cpci405/cpci405.c b/board/esd/cpci405/cpci405.c
index 2dda8fa..dc498d5 100644
--- a/board/esd/cpci405/cpci405.c
+++ b/board/esd/cpci405/cpci405.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2001
+ * (C) Copyright 2001-2003
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* See file CREDITS for list of people who contributed to this
@@ -50,7 +50,7 @@ const unsigned char fpgadata[] =
/* Prototypes */
-int version2(void);
+int cpci405_version(void);
int gunzip(void *, int, unsigned char *, int *);
@@ -83,7 +83,7 @@ int board_pre_init (void)
* Boot onboard FPGA
*/
#ifndef CONFIG_CPCI405_VER2
- if (!version2()) {
+ if (cpci405_version() == 1) {
status = fpga_boot((unsigned char *)fpgadata, sizeof(fpgadata));
if (status != 0) {
/* booting FPGA failed */
@@ -144,7 +144,11 @@ int board_pre_init (void)
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr(uicer, 0x00000000); /* disable all ints */
mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
- mtdcr(uicpr, 0xFFFFFF81); /* set int polarities */
+ if (cpci405_version() == 3) {
+ mtdcr(uicpr, 0xFFFFFF99); /* set int polarities */
+ } else {
+ mtdcr(uicpr, 0xFFFFFF81); /* set int polarities */
+ }
mtdcr(uictr, 0x10000000); /* set int trigger levels */
mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
@@ -178,29 +182,43 @@ int cpci405_host(void)
}
-int version2(void)
+int cpci405_version(void)
{
unsigned long cntrl0Reg;
unsigned long value;
/*
- * Setup GPIO pins (CS2/GPIO11 as GPIO)
+ * Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO)
*/
cntrl0Reg = mfdcr(cntrl0);
- mtdcr(cntrl0, cntrl0Reg | 0x02000000);
-
+ mtdcr(cntrl0, cntrl0Reg | 0x03000000);
+ out32(IBM405GP_GPIO0_ODR, in32(IBM405GP_GPIO0_ODR) & ~0x00180000);
+ out32(IBM405GP_GPIO0_TCR, in32(IBM405GP_GPIO0_TCR) & ~0x00180000);
udelay(1000); /* wait some time before reading input */
- value = in32(IBM405GP_GPIO0_IR) & 0x00100000; /* test GPIO11 */
+ value = in32(IBM405GP_GPIO0_IR) & 0x00180000; /* get config bits */
/*
- * Setup GPIO pins (CS2/GPIO11 as CS again)
+ * Restore GPIO settings
*/
mtdcr(cntrl0, cntrl0Reg);
- if (value)
- return 0; /* no, board is version 1.x */
- else
- return -1; /* yes, board is version 2.x */
+ switch (value) {
+ case 0x00180000:
+ /* CS2==1 && CS3==1 -> version 1 */
+ return 1;
+ case 0x00080000:
+ /* CS2==0 && CS3==1 -> version 2 */
+ return 2;
+ case 0x00100000:
+ /* CS2==1 && CS3==0 -> version 3 */
+ return 3;
+ case 0x00000000:
+ /* CS2==0 && CS3==0 -> version 4 */
+ return 4;
+ default:
+ /* should not be reached! */
+ return 2;
+ }
}
@@ -230,7 +248,7 @@ int misc_init_r (void)
* FPGA can be gzip compressed (malloc) and booted this late.
*/
- if (version2()) {
+ if (cpci405_version() >= 2) {
/*
* Setup GPIO pins (CS6+CS7 as GPIO)
*/
@@ -291,11 +309,41 @@ int misc_init_r (void)
putc ('\n');
free(dst);
+
+ /*
+ * Reset FPGA via FPGA_DATA pin
+ */
+ SET_FPGA(FPGA_PRG | FPGA_CLK);
+ udelay(1000); /* wait 1ms */
+ SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
+ udelay(1000); /* wait 1ms */
+
+ if (cpci405_version() == 3) {
+ volatile unsigned short *fpga_mode = (unsigned short *)CFG_FPGA_BASE_ADDR;
+ volatile unsigned char *leds = (unsigned char *)CFG_LED_ADDR;
+
+ /*
+ * Enable outputs in fpga on version 3 board
+ */
+ *fpga_mode |= CFG_FPGA_MODE_ENABLE_OUTPUT;
+
+ /*
+ * Set outputs to 0
+ */
+ *leds = 0x00;
+
+ /*
+ * Reset external DUART
+ */
+ *fpga_mode |= CFG_FPGA_MODE_DUART_RESET;
+ udelay(100);
+ *fpga_mode &= ~(CFG_FPGA_MODE_DUART_RESET);
+ }
}
else {
- printf("\n*** U-Boot Version does not match Board Version!\n");
- printf("*** CPCI-405 Version 2.x detected!\n");
- printf("*** Please use correct U-Boot version (CPCI4052)!\n\n");
+ puts("\n*** U-Boot Version does not match Board Version!\n");
+ puts("*** CPCI-405 Version 1.x detected!\n");
+ puts("*** Please use correct U-Boot version (CPCI405 instead of CPCI4052)!\n\n");
}
#else /* CONFIG_CPCI405_VER2 */
@@ -321,10 +369,10 @@ int misc_init_r (void)
}
}
- if (version2()) {
- printf("\n*** U-Boot Version does not match Board Version!\n");
- printf("*** CPCI-405 Board Version 1.x detected!\n");
- printf("*** Please use correct U-Boot version (CPCI405)!\n\n");
+ if (cpci405_version() >= 2) {
+ puts("\n*** U-Boot Version does not match Board Version!\n");
+ puts("*** CPCI-405 Board Version 2.x detected!\n");
+ puts("*** Please use correct U-Boot version (CPCI4052 instead of CPCI405)!\n\n");
}
#endif /* CONFIG_CPCI405_VER2 */
@@ -350,6 +398,7 @@ int checkboard (void)
#endif
unsigned char str[64];
int i = getenv_r ("serial#", str, sizeof(str));
+ unsigned short ver;
puts ("Board: ");
@@ -359,17 +408,19 @@ int checkboard (void)
puts(str);
}
- if (version2())
- puts (" (Ver 2.x, ");
- else
- puts (" (Ver 1.x, ");
+ ver = cpci405_version();
+ printf(" (Ver %d.x, ", ver);
-#if 0
- if ((*(unsigned short *)((unsigned long)CFG_FPGA_BASE_ADDR) + CFG_FPGA_STATUS)
- & CFG_FPGA_STATUS_FLASH)
- puts ("FLASH Bank A, ");
- else
- puts ("FLASH Bank B, ");
+#if 0 /* test-only */
+ if (ver >= 2) {
+ volatile u16 *fpga_status = (u16 *)CFG_FPGA_BASE_ADDR + 1;
+
+ if (*fpga_status & CFG_FPGA_STATUS_FLASH) {
+ puts ("FLASH Bank B, ");
+ } else {
+ puts ("FLASH Bank A, ");
+ }
+ }
#endif
if (ctermm2()) {