The serial ports used by kgdb must be initialized very early in the boot.
The ARM 'init_machine' where serial ports are normally initialized is too
late since the 'kgdbwait' command-line option is handled in the early_param()
processing.
Signed-off-by: Kevin Hilman <[EMAIL PROTECTED]>
Signed-off-by: Sergei Shtylyov <[EMAIL PROTECTED]>
---
The patch is an extended version of the original by Kevin; it's against the top
of KGDB patchset in the linux_2_6_21_uprev branch.
arch/arm/mach-ixp4xx/ixdp425-setup.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
Index: linux-2.6/arch/arm/mach-ixp4xx/ixdp425-setup.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ linux-2.6/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -119,6 +119,11 @@ static void __init ixdp425_init(void)
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
+}
+
+static void __init ixdp425_map_io(void)
+{
+ ixp4xx_map_io();
#ifdef CONFIG_KGDB_8250
kgdb8250_add_platform_port(0, &ixdp425_uart_data[0]);
@@ -131,7 +136,7 @@ MACHINE_START(IXDP425, "Intel IXDP425 De
/* Maintainer: MontaVista Software, Inc. */
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
- .map_io = ixp4xx_map_io,
+ .map_io = ixdp425_map_io,
.init_irq = ixp4xx_init_irq,
.timer = &ixp4xx_timer,
.boot_params = 0x0100,
@@ -144,7 +149,7 @@ MACHINE_START(IXDP465, "Intel IXDP465 De
/* Maintainer: MontaVista Software, Inc. */
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
- .map_io = ixp4xx_map_io,
+ .map_io = ixdp425_map_io,
.init_irq = ixp4xx_init_irq,
.timer = &ixp4xx_timer,
.boot_params = 0x0100,
@@ -157,7 +162,7 @@ MACHINE_START(IXCDP1100, "Intel IXCDP110
/* Maintainer: MontaVista Software, Inc. */
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
- .map_io = ixp4xx_map_io,
+ .map_io = ixdp425_map_io,
.init_irq = ixp4xx_init_irq,
.timer = &ixp4xx_timer,
.boot_params = 0x0100,
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