Module Name: src
Committed By: ryo
Date: Thu Jun 21 11:57:05 UTC 2018
Modified Files:
src/sys/arch/aarch64/aarch64: locore.S
src/sys/arch/evbarm/fdt: fdt_machdep.c
Log Message:
* make to work printf() and panic() even before consinit().
* tidy up output for VERBOSE_INIT_ARM.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/aarch64/aarch64/locore.S
cvs rdiff -u -r1.22 -r1.23 src/sys/arch/evbarm/fdt/fdt_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/aarch64/aarch64/locore.S
diff -u src/sys/arch/aarch64/aarch64/locore.S:1.6 src/sys/arch/aarch64/aarch64/locore.S:1.7
--- src/sys/arch/aarch64/aarch64/locore.S:1.6 Thu May 17 08:24:28 2018
+++ src/sys/arch/aarch64/aarch64/locore.S Thu Jun 21 11:57:05 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.S,v 1.6 2018/05/17 08:24:28 ryo Exp $ */
+/* $NetBSD: locore.S,v 1.7 2018/06/21 11:57:05 ryo Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <[email protected]>
@@ -36,7 +36,7 @@
#include <aarch64/pte.h>
#include "assym.h"
-RCSID("$NetBSD: locore.S,v 1.6 2018/05/17 08:24:28 ryo Exp $")
+RCSID("$NetBSD: locore.S,v 1.7 2018/06/21 11:57:05 ryo Exp $")
/* #define DEBUG_LOCORE */
/* #define DEBUG_MMU */
@@ -181,11 +181,11 @@ ENTRY_NP(aarch64_start)
PRINT("DAIF = ")
mrs x0, daif
bl print_x0
-#endif
PRINT("VSTART = ")
ldr x0, =vstart # virtual address of vstart
bl print_x0
+#endif
ldr x0, =vstart # virtual address of vstart
br x0 # jump to the kernel virtual address
Index: src/sys/arch/evbarm/fdt/fdt_machdep.c
diff -u src/sys/arch/evbarm/fdt/fdt_machdep.c:1.22 src/sys/arch/evbarm/fdt/fdt_machdep.c:1.23
--- src/sys/arch/evbarm/fdt/fdt_machdep.c:1.22 Thu Jun 14 10:53:39 2018
+++ src/sys/arch/evbarm/fdt/fdt_machdep.c Thu Jun 21 11:57:05 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_machdep.c,v 1.22 2018/06/14 10:53:39 jmcneill Exp $ */
+/* $NetBSD: fdt_machdep.c,v 1.23 2018/06/21 11:57:05 ryo Exp $ */
/*-
* Copyright (c) 2015-2017 Jared McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.22 2018/06/14 10:53:39 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.23 2018/06/21 11:57:05 ryo Exp $");
#include "opt_machdep.h"
#include "opt_bootconfig.h"
@@ -55,6 +55,7 @@ __KERNEL_RCSID(0, "$NetBSD: fdt_machdep.
#include <sys/termios.h>
#include <sys/extent.h>
+#include <dev/cons.h>
#include <uvm/uvm_extern.h>
#include <sys/conf.h>
@@ -118,43 +119,46 @@ static void fdt_device_register(device_t
static void fdt_reset(void);
static void fdt_powerdown(void);
-#ifdef VERBOSE_INIT_ARM
+static dev_type_cnputc(earlyconsputc);
+static dev_type_cngetc(earlyconsgetc);
+
+static struct consdev earlycons = {
+ .cn_putc = earlyconsputc,
+ .cn_getc = earlyconsgetc,
+ .cn_pollc = nullcnpollc,
+};
+
static void
fdt_putchar(char c)
{
const struct arm_platform *plat = arm_fdt_platform();
- if (plat && plat->early_putchar)
+ if (plat && plat->early_putchar) {
plat->early_putchar(c);
+ }
+#ifdef EARLYCONS
+ else {
+ void uartputc(int); /* evbarm/fdt/fdt_start.S */
+ uartputc(c);
+ }
+#endif
}
static void
-fdt_putstr(const char *s)
+earlyconsputc(dev_t dev, int c)
{
- for (const char *p = s; *p; p++)
- fdt_putchar(*p);
+ fdt_putchar(c);
}
-static void
-fdt_printn(unsigned long n, int base)
+static int
+earlyconsgetc(dev_t dev)
{
- char *p, buf[(sizeof(unsigned long) * NBBY / 3) + 1 + 2 /* ALT + SIGN */];
-
- p = buf;
- do {
- *p++ = hexdigits[n % base];
- } while (n /= base);
-
- do {
- fdt_putchar(*--p);
- } while (p > buf);
+ return 0; /* XXX */
}
-#define DPRINTF(...) printf(__VA_ARGS__)
-#define DPRINT(x) fdt_putstr(x)
-#define DPRINTN(x,b) fdt_printn((x), (b))
+
+#ifdef VERBOSE_INIT_ARM
+#define DPRINTF(...) printf(__VA_ARGS__)
#else
#define DPRINTF(...)
-#define DPRINT(x)
-#define DPRINTN(x,b)
#endif
/*
@@ -354,6 +358,9 @@ initarm(void *arg)
const struct arm_platform *plat;
uint64_t memory_start, memory_end;
+ /* set temporally to work printf()/panic() even before consinit() */
+ cn_tab = &earlycons;
+
/* Load FDT */
int error = fdt_check_header(fdt_addr_r);
if (error == 0) {
@@ -371,27 +378,25 @@ initarm(void *arg)
panic("Kernel does not support this device");
/* Early console may be available, announce ourselves. */
- DPRINT("FDT<");
- DPRINTN((uintptr_t)fdt_addr_r, 16);
- DPRINT(">");
+ DPRINTF("FDT<%p>\n", fdt_addr_r);
const int chosen = OF_finddevice("/chosen");
if (chosen >= 0)
OF_getprop(chosen, "bootargs", bootargs, sizeof(bootargs));
boot_args = bootargs;
- DPRINT(" devmap");
+ DPRINTF("devmap\n");
pmap_devmap_register(plat->devmap());
#ifdef __aarch64__
pmap_devmap_bootstrap(plat->devmap());
#endif
/* Heads up ... Setup the CPU / MMU / TLB functions. */
- DPRINT(" cpufunc");
+ DPRINTF("cpufunc\n");
if (set_cpufuncs())
panic("cpu not recognized!");
- DPRINT(" bootstrap");
+ DPRINTF("bootstrap\n");
plat->bootstrap();
/*
@@ -400,10 +405,9 @@ initarm(void *arg)
*/
fdt_update_stdout_path();
- DPRINT(" consinit");
+ DPRINTF("consinit ");
consinit();
-
- DPRINTF(" ok\n");
+ DPRINTF("ok\n");
DPRINTF("uboot: args %#lx, %#lx, %#lx, %#lx\n",
uboot_args[0], uboot_args[1], uboot_args[2], uboot_args[3]);
