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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-02-28 13:57:51 +0800
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2012-03-15 23:30:05 +0800
commit2b11ea5bf2fe4b79f9388d2eaf5d84713eb44a4c (patch)
tree706fb6d2d0782d09ec47b6138390d3c14853eb78 /arch
parent8bf7ec6508cdd6e068d42b9acee1ea439543ebe7 (diff)
ARM: at91/dt: add specific DT soc init
This will allow to have static Device mapping and DT probe mapping for the System Controller. Temporary keep the call to ioremap_registers() until we have the binding for the SDRAM/DDR Controller. Temporary keep the main clock hardcoded to 12MHz until we have the binding for the PMC. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-at91/board-dt.c8
-rw-r--r--arch/arm/mach-at91/generic.h1
-rw-r--r--arch/arm/mach-at91/setup.c18
3 files changed, 20 insertions, 7 deletions
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
index 9f729d6c894..c18d4d30780 100644
--- a/arch/arm/mach-at91/board-dt.c
+++ b/arch/arm/mach-at91/board-dt.c
@@ -30,12 +30,6 @@
#include "generic.h"
-static void __init ek_init_early(void)
-{
- /* Initialize processor: 12.000 MHz crystal */
- at91_initialize(12000000);
-}
-
static const struct of_device_id irq_of_match[] __initconst = {
{ .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
@@ -65,7 +59,7 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
- .init_early = ek_init_early,
+ .init_early = at91_dt_initialize,
.init_irq = at91_dt_init_irq,
.init_machine = at91_dt_device_init,
.dt_compat = at91_dt_board_compat,
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index 459f01a4a54..d5f5083880f 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -20,6 +20,7 @@ extern void __init at91_init_sram(int bank, unsigned long base,
extern void __init at91rm9200_set_type(int type);
extern void __init at91_initialize(unsigned long main_clock);
extern void __init at91x40_initialize(unsigned long main_clock);
+extern void __init at91_dt_initialize(void);
/* Interrupts */
extern void __init at91_init_irq_default(void);
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 372396c2ecb..c0bd5a62569 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -9,6 +9,7 @@
#include <linux/io.h>
#include <linux/mm.h>
#include <linux/pm.h>
+#include <linux/of_address.h>
#include <asm/mach/map.h>
@@ -285,6 +286,23 @@ void __init at91_ioremap_matrix(u32 base_addr)
panic("Impossible to ioremap at91_matrix_base\n");
}
+#if defined(CONFIG_OF)
+void __init at91_dt_initialize(void)
+{
+ /* temporary until have the ramc binding*/
+ at91_boot_soc.ioremap_registers();
+
+ /* temporary until have the pmc binding */
+ /* Init clock subsystem */
+ at91_clock_init(12000000);
+
+ /* Register the processor-specific clocks */
+ at91_boot_soc.register_clocks();
+
+ at91_boot_soc.init();
+}
+#endif
+
void __init at91_initialize(unsigned long main_clock)
{
at91_boot_soc.ioremap_registers();