ARM: OMAP2+: AM43x: basic dt support

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 <a-kishore@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 88aa6b1835c3674f4483e2df155ed9e9b0fa613f..e5fbfed69aa2bc5094b508a3219c8988d0d3dbe7 100644 (file)
--- 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 f8b23b8040d9aa61a1593d30a55c5ed951cc5f6a..3bdb0fb020285d8a2b603a4771c7eea60d69baa9 100644 (file)
--- 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",