From: Magnus Damm <magnus.damm@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH 03/03] ARM: mach-shmobile: sh73a0 generic board support via DT
Date: Wed, 07 Mar 2012 05:54:06 +0000 [thread overview]
Message-ID: <20120307055406.20126.40319.sendpatchset@w520> (raw)
From: Magnus Damm <damm@opensource.se>
Add generic DT board support for the sh73a0 SoC.
SCIF serial ports and timers are kept as regular
platform devices. Other on-chip and on-board devices
should be configured via the device tree.
Tested on the kota2 board via kexec using a zImage
kernel with an appended dtb.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
arch/arm/mach-shmobile/setup-sh73a0.c | 41 +++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
--- 0037/arch/arm/mach-shmobile/setup-sh73a0.c
+++ work/arch/arm/mach-shmobile/setup-sh73a0.c 2012-03-07 13:34:29.000000000 +0900
@@ -37,6 +37,7 @@
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
+#include <asm/hardware/gic.h>
static struct map_desc sh73a0_io_desc[] __initdata = {
/* create a 1:1 entity map for 0xe6xxxxxx
@@ -704,3 +705,43 @@ void __init sh73a0_add_early_devices(voi
/* override timer setup with soc-specific code */
shmobile_timer.init = sh73a0_earlytimer_init;
}
+
+#ifdef CONFIG_USE_OF
+
+void __init sh73a0_add_early_devices_dt(void)
+{
+ shmobile_setup_delay(1196, 1, 3); /* Cortex-A9 @ 1196MHz */
+
+ early_platform_add_devices(sh73a0_early_devices,
+ ARRAY_SIZE(sh73a0_early_devices));
+
+ /* setup early console here as well */
+ shmobile_setup_console();
+}
+
+void __init sh73a0_add_standard_devices_dt(void)
+{
+ /* clocks are setup late during boot in the case of DT */
+ sh73a0_clock_init();
+
+ platform_add_devices(sh73a0_early_devices,
+ ARRAY_SIZE(sh73a0_early_devices));
+}
+
+static const char *sh73a0_boards_compat_dt[] __initdata = {
+ "renesas,sh73a0",
+ NULL,
+};
+
+DT_MACHINE_START(SH73A0_DT, "Generic SH73A0 (Flattened Device Tree)")
+ .map_io = sh73a0_map_io,
+ .init_early = sh73a0_add_early_devices_dt,
+ .nr_irqs = NR_IRQS_LEGACY,
+ .init_irq = sh73a0_init_irq,
+ .handle_irq = gic_handle_irq,
+ .init_machine = sh73a0_add_standard_devices_dt,
+ .timer = &shmobile_timer,
+ .dt_compat = sh73a0_boards_compat_dt,
+MACHINE_END
+
+#endif /* CONFIG_USE_OF */
reply other threads:[~2012-03-07 5:54 UTC|newest]
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