From: Magnus Damm <magnus.damm@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH 04/07] ARM: mach-shmobile: Marzen early console hack
Date: Tue, 06 Dec 2011 16:52:31 +0000 [thread overview]
Message-ID: <20111206165231.19348.35940.sendpatchset@w520> (raw)
From: Magnus Damm <damm@opensource.se>
Hack the Marzen board code to get early debug print outs.
Use with "earlyprint=sh-sci.2,11520" on the kernel command line.
Good to have when tracking down early timer or PFC issues.
Needed by the r8a7779 PFC map hack further in the series.
Never-signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/mach-shmobile/board-marzen.c | 8 ++++++++
arch/arm/mach-shmobile/setup-r8a7779.c | 4 ++--
2 files changed, 10 insertions(+), 2 deletions(-)
--- 0008/arch/arm/mach-shmobile/board-marzen.c
+++ work/arch/arm/mach-shmobile/board-marzen.c 2011-12-06 23:57:23.000000000 +0900
@@ -54,6 +54,13 @@ static struct map_desc marzen_io_desc[]
.length = SZ_16M,
.type = MT_DEVICE_NONSHARED
},
+ /* 16M debug map between 0xfdxxxxxx and 0xffxxxxxx */
+ {
+ .virtual = 0xfd000000,
+ .pfn = __phys_to_pfn(0xff000000),
+ .length = SZ_16M,
+ .type = MT_DEVICE_NONSHARED
+ },
};
static void __init marzen_map_io(void)
@@ -80,6 +87,7 @@ static void __init marzen_init_early(voi
* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
* command line.
*/
+ shmobile_setup_console();
}
static void __init marzen_init(void)
--- 0008/arch/arm/mach-shmobile/setup-r8a7779.c
+++ work/arch/arm/mach-shmobile/setup-r8a7779.c 2011-12-06 23:56:32.000000000 +0900
@@ -70,8 +70,8 @@ static struct platform_device scif1_devi
};
static struct plat_sci_port scif2_platform_data = {
- .mapbase = 0xffe42000,
- .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
+ .mapbase = 0xfde42000,
+ .flags = UPF_BOOT_AUTOCONF,
.scscr = SCSCR_RE | SCSCR_TE | SCSCR_CKE1,
.scbrr_algo_id = SCBRR_ALGO_2,
.type = PORT_SCIF,
reply other threads:[~2011-12-06 16:52 UTC|newest]
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