summaryrefslogtreecommitdiffstats
path: root/qemu/roms/u-boot/board/esd/vom405/vom405.c
diff options
context:
space:
mode:
authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/esd/vom405/vom405.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/esd/vom405/vom405.c')
-rw-r--r--qemu/roms/u-boot/board/esd/vom405/vom405.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/esd/vom405/vom405.c b/qemu/roms/u-boot/board/esd/vom405/vom405.c
new file mode 100644
index 000000000..7de6f6654
--- /dev/null
+++ b/qemu/roms/u-boot/board/esd/vom405/vom405.c
@@ -0,0 +1,148 @@
+/*
+ * (C) Copyright 2001-2004
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <command.h>
+#include <malloc.h>
+#include <sja1000.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern void lxt971_no_sleep(void);
+
+/*
+ * generate a short spike on the CAN tx line
+ * to bring the couplers in sync
+ */
+void init_coupler(u32 addr)
+{
+ struct sja1000_basic_s *ctrl = (struct sja1000_basic_s *)addr;
+
+ /* reset */
+ out_8(&ctrl->cr, CR_RR);
+
+ /* dominant */
+ out_8(&ctrl->btr0, 0x00); /* btr setup is required */
+ out_8(&ctrl->btr1, 0x14); /* we use 1Mbit/s */
+ out_8(&ctrl->oc, OC_TP1 | OC_TN1 | OC_POL1 |
+ OC_TP0 | OC_TN0 | OC_POL0 | OC_MODE1);
+ out_8(&ctrl->cr, 0x00);
+
+ /* delay */
+ in_8(&ctrl->cr);
+ in_8(&ctrl->cr);
+ in_8(&ctrl->cr);
+ in_8(&ctrl->cr);
+
+ /* reset */
+ out_8(&ctrl->cr, CR_RR);
+}
+
+int board_early_init_f (void)
+{
+ /*
+ * IRQ 0-15 405GP internally generated; active high; level sensitive
+ * IRQ 16 405GP internally generated; active low; level sensitive
+ * IRQ 17-24 RESERVED
+ * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
+ * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
+ * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
+ * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
+ * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
+ * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
+ * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
+ */
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+ mtdcr(UIC0ER, 0x00000000); /* disable all ints */
+ mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
+ mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
+ mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
+ mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
+ mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
+
+ /*
+ * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
+ */
+ mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
+
+ /*
+ * Reset CPLD via GPIO12 (CS3) pin
+ */
+ out_be32((void *)GPIO0_OR,
+ in_be32((void *)GPIO0_OR) & ~(0x80000000 >> 12));
+ udelay(1000); /* wait 1ms */
+ out_be32((void *)GPIO0_OR,
+ in_be32((void *)GPIO0_OR) | (0x80000000 >> 12));
+ udelay(1000); /* wait 1ms */
+
+ return 0;
+}
+
+int misc_init_r (void)
+{
+ /* adjust flash start and offset */
+ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
+ gd->bd->bi_flashoffset = 0;
+
+ /*
+ * Init magnetic coupler
+ */
+ if (!getenv("noinitcoupler"))
+ init_coupler(CAN_BA);
+
+ return (0);
+}
+
+/*
+ * Check Board Identity:
+ */
+int checkboard (void)
+{
+ char str[64];
+ int i = getenv_f("serial#", str, sizeof(str));
+ int flashcnt;
+ int delay;
+ u8 *led_reg = (u8 *)(CAN_BA + 0x1000);
+
+ puts ("Board: ");
+
+ if (i == -1) {
+ puts ("### No HW ID - assuming VOM405");
+ } else {
+ puts(str);
+ }
+
+ printf(" (PLD-Version=%02d)\n", in_8(led_reg));
+
+ /*
+ * Flash LEDs
+ */
+ for (flashcnt = 0; flashcnt < 3; flashcnt++) {
+ out_8(led_reg, 0x40); /* LED_B..D off */
+ for (delay = 0; delay < 100; delay++)
+ udelay(1000);
+ out_8(led_reg, 0x47); /* LED_B..D on */
+ for (delay = 0; delay < 50; delay++)
+ udelay(1000);
+ }
+ out_8(led_reg, 0x40);
+
+ return 0;
+}
+
+void reset_phy(void)
+{
+#ifdef CONFIG_LXT971_NO_SLEEP
+
+ /*
+ * Disable sleep mode in LXT971
+ */
+ lxt971_no_sleep();
+#endif
+}