[v2,10/14] ARM: OMAP2+: AM43x: basic dt support

Commit Message

Afzal Mohammed May 27, 2013, 2:36 p.m. UTC

Describe minimal DT boot machine details for AM43x based SoC's. AM43x
SoC's are ARM Cortex-A9 based with one core. AM43x is similar to
AM335x w.r.t L4 PER/WKUP memory map. AM43x has a sync timer, here that
is being used as clocksource, while 1ms dmtimer as clockevent.

Signed-off-by: Ankur Kishore <[e-mail]>
Signed-off-by: Afzal Mohammed <[e-mail]>
---

v2: Rely on dmtimer & synctimer for clockevent/source, map peripheral
	memory as in AM335x

 arch/arm/mach-omap2/board-generic.c | 16 ++++++++++++++++
 arch/arm/mach-omap2/timer.c         |  2 +-
 2 files changed, 17 insertions(+), 1 deletion(-)

Patch

diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 88aa6b1..e5fbfed 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -185,3 +185,19 @@  DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
 	.restart	= omap44xx_restart,
 MACHINE_END
 #endif
+
+#ifdef CONFIG_SOC_AM43XX
+static const char *am43_boards_compat[] __initdata = {
+	"ti,am43",
+	NULL,
+};
+
+DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
+	.map_io		= am33xx_map_io,
+	.init_early	= am43xx_init_early,
+	.init_irq	= omap_gic_of_init,
+	.init_machine	= omap_generic_init,
+	.init_time	= omap3_sync32k_timer_init,
+	.dt_compat	= am43_boards_compat,
+MACHINE_END
+#endif
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 8e0c390..5f148e7 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -582,7 +582,7 @@  OMAP_SYS_32K_TIMER_INIT(2, 1, "timer_32k_ck", "ti,timer-alwon",
 			2, "timer_sys_ck", NULL);
 #endif /* CONFIG_ARCH_OMAP2 */
 
-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM43XX)
 OMAP_SYS_32K_TIMER_INIT(3, 1, "timer_32k_ck", "ti,timer-alwon",
 			2, "timer_sys_ck", NULL);
 OMAP_SYS_32K_TIMER_INIT(3_secure, 12, "secure_32k_fck", "ti,timer-secure",