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Diffstat (limited to 'board/a3m071/a3m071.c')
-rw-r--r--board/a3m071/a3m071.c147
1 files changed, 139 insertions, 8 deletions
diff --git a/board/a3m071/a3m071.c b/board/a3m071/a3m071.c
index 89ced82..0f9f883 100644
--- a/board/a3m071/a3m071.c
+++ b/board/a3m071/a3m071.c
@@ -24,10 +24,15 @@
#include <mpc5xxx.h>
#include <pci.h>
#include <miiphy.h>
+#include <linux/compiler.h>
#include <asm/processor.h>
#include <asm/io.h>
+#ifdef CONFIG_A4M2K
+#include "is46r16320d.h"
+#else
#include "mt46v16m16-75.h"
+#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -63,6 +68,12 @@ static void sdram_start(int hi_addr)
/* normal operation */
out_be32((void *)MPC5XXX_SDRAM_CTRL, control);
+
+ /*
+ * Wait a short while for the DLL to lock before accessing
+ * the SDRAM
+ */
+ udelay(100);
}
#endif
@@ -157,12 +168,6 @@ static void get_revisions(int *failsavelevel, int *digiboardversion,
struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
u8 val;
- /*
- * Figure out failsavelevel
- * see ticket dsvk#59
- */
- *failsavelevel = 0; /* 0=failsave, 1=board ok, 2=fpga ok */
-
/* read digitalboard-version from TMR[2..4] */
val = 0;
val |= (gpt->gpt2.sr & (1 << (31 - 23))) ? (1) : 0;
@@ -170,6 +175,17 @@ static void get_revisions(int *failsavelevel, int *digiboardversion,
val |= (gpt->gpt4.sr & (1 << (31 - 23))) ? (1 << 2) : 0;
*digiboardversion = val;
+ /*
+ * A4M2K only supports digiboardversion. No failsavelevel and
+ * fpgaversion here.
+ */
+#if !defined(CONFIG_A4M2K)
+ /*
+ * Figure out failsavelevel
+ * see ticket dsvk#59
+ */
+ *failsavelevel = 0; /* 0=failsave, 1=board ok, 2=fpga ok */
+
if (*digiboardversion == 0) {
*failsavelevel = 1; /* digiboard-version ok */
@@ -183,6 +199,7 @@ static void get_revisions(int *failsavelevel, int *digiboardversion,
if (*fpgaversion == 1)
*failsavelevel = 2; /* fpga-version ok */
}
+#endif
}
/*
@@ -196,6 +213,11 @@ void spl_board_init(void)
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_mmap_ctl *mm =
(struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+
+#if defined(CONFIG_A4M2K)
+ /* enable CS3 and CS5 (FPGA) */
+ setbits_be32(&mm->ipbi_ws_ctrl, (1 << 19) | (1 << 21));
+#else
int digiboardversion;
int failsavelevel;
int fpgaversion;
@@ -219,6 +241,7 @@ void spl_board_init(void)
/* And write new value back to register */
out_be32(&mm->ipbi_ws_ctrl, val);
+#endif
/*
* No need to change the pin multiplexing (MPC5XXX_GPS_PORT_CONFIG)
@@ -232,8 +255,57 @@ void spl_board_init(void)
* MPC5XXX_WU_GPIO_DIR direction is already 0 (INPUT)
* set bit 0(msb) to 1
*/
- setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, 1 << (31 - 0));
+ setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, CONFIG_WDOG_GPIO_PIN);
+
+#if defined(CONFIG_A4M2K)
+ /* Setup USB[x] as MPCDiag[0..3] GPIO outputs */
+
+ /* set USB0,6,7,8 (MPCDiag[0..3]) direction to output */
+ gpio->simple_ddr |= 1 << (31 - 15);
+ gpio->simple_ddr |= 1 << (31 - 14);
+ gpio->simple_ddr |= 1 << (31 - 13);
+ gpio->simple_ddr |= 1 << (31 - 12);
+
+ /* enable USB0,6,7,8 (MPCDiag[0..3]) as GPIO */
+ gpio->simple_gpioe |= 1 << (31 - 15);
+ gpio->simple_gpioe |= 1 << (31 - 14);
+ gpio->simple_gpioe |= 1 << (31 - 13);
+ gpio->simple_gpioe |= 1 << (31 - 12);
+
+ /* Setup PSC2[0..2] as STSLED[0..2] GPIO outputs */
+
+ /* set PSC2[0..2] (STSLED[0..2]) direction to output */
+ gpio->simple_ddr |= 1 << (31 - 27);
+ gpio->simple_ddr |= 1 << (31 - 26);
+ gpio->simple_ddr |= 1 << (31 - 25);
+
+ /* enable PSC2[0..2] (STSLED[0..2]) as GPIO */
+ gpio->simple_gpioe |= 1 << (31 - 27);
+ gpio->simple_gpioe |= 1 << (31 - 26);
+ gpio->simple_gpioe |= 1 << (31 - 25);
+
+ /* Setup PSC6[2] as MRST2 self reset GPIO output */
+
+ /* set PSC6[2]/IRDA_TX (MRST2) direction to output */
+ gpio->simple_ddr |= 1 << (31 - 3);
+
+ /* set PSC6[2]/IRDA_TX (MRST2) output as open drain */
+ gpio->simple_ode |= 1 << (31 - 3);
+ /* set PSC6[2]/IRDA_TX (MRST2) output as default high */
+ gpio->simple_dvo |= 1 << (31 - 3);
+
+ /* enable PSC6[2]/IRDA_TX (MRST2) as GPIO */
+ gpio->simple_gpioe |= 1 << (31 - 3);
+
+ /* Setup PSC6[3] as HARNSSCD harness code GPIO input */
+
+ /* set PSC6[3]/IR_USB_CLK (HARNSSCD) direction to input */
+ gpio->simple_ddr |= 0 << (31 - 2);
+
+ /* enable PSC6[3]/IR_USB_CLK (HARNSSCD) as GPIO */
+ gpio->simple_gpioe |= 1 << (31 - 2);
+#else
/* setup GPIOs for status-leds if needed - see ticket #57 */
if (failsavelevel > 0) {
/* digiboard-version is OK */
@@ -267,7 +339,7 @@ void spl_board_init(void)
* already cleared (intr_ctrl) MBAR+0x0510 ECLR[0] bit above
*/
}
-
+#endif
}
int checkboard(void)
@@ -278,11 +350,16 @@ int checkboard(void)
get_revisions(&failsavelevel, &digiboardversion, &fpgaversion);
+#ifdef CONFIG_A4M2K
+ puts("Board: A4M2K\n");
+ printf(" digiboard IO version %u\n", digiboardversion);
+#else
puts("Board: A3M071\n");
printf("Rev: failsave level %u\n", failsavelevel);
printf(" digiboard IO version %u\n", digiboardversion);
if (failsavelevel > 0) /* only if fpga-version red */
printf(" fpga IO version %u\n", fpgaversion);
+#endif
return 0;
}
@@ -333,3 +410,57 @@ int spl_start_uboot(void)
return 1;
}
#endif
+
+#if defined(CONFIG_HW_WATCHDOG)
+static int watchdog_toggle;
+
+void hw_watchdog_reset(void)
+{
+ int val;
+
+ /*
+ * Check if watchdog is enabled via user command
+ */
+ if ((gd->flags & GD_FLG_RELOC) && watchdog_toggle) {
+ /* Set direction to output */
+ setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, CONFIG_WDOG_GPIO_PIN);
+
+ /*
+ * Toggle watchdog output
+ */
+ val = (in_be32((void *)MPC5XXX_WU_GPIO_DATA_O) &
+ CONFIG_WDOG_GPIO_PIN);
+ if (val) {
+ clrbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O,
+ CONFIG_WDOG_GPIO_PIN);
+ } else {
+ setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O,
+ CONFIG_WDOG_GPIO_PIN);
+ }
+ }
+}
+
+int do_wdog_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ if (argc != 2)
+ goto usage;
+
+ if (strncmp(argv[1], "on", 2) == 0)
+ watchdog_toggle = 1;
+ else if (strncmp(argv[1], "off", 3) == 0)
+ watchdog_toggle = 0;
+ else
+ goto usage;
+
+ return 0;
+usage:
+ printf("Usage: wdogtoggle %s\n", cmdtp->usage);
+ return 1;
+}
+
+U_BOOT_CMD(
+ wdogtoggle, CONFIG_SYS_MAXARGS, 2, do_wdog_toggle,
+ "toggle GPIO pin to service watchdog",
+ "[on/off] - Switch watchdog toggling via GPIO pin on/off"
+);
+#endif
generated by cgit v1.1 at 2024-11-15 02:14:36 +0000