@@ -38,7 +38,6 @@
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
-#include <asm/smp_scu.h>
#include <asm/system_info.h>
#include <asm/hardware/cache-l2x0.h>
@@ -48,8 +47,6 @@
#define ZYNQ_DEVCFG_PS_VERSION_SHIFT 28
#define ZYNQ_DEVCFG_PS_VERSION_MASK 0xF
-void __iomem *zynq_scu_base;
-
/**
* zynq_memory_init - Initialize special memory
*
@@ -153,33 +150,6 @@ static void __init zynq_timer_init(void)
clocksource_probe();
}
-static struct map_desc zynq_cortex_a9_scu_map __initdata = {
- .length = SZ_256,
- .type = MT_DEVICE,
-};
-
-static void __init zynq_scu_map_io(void)
-{
- unsigned long base;
-
- base = scu_a9_get_base();
- zynq_cortex_a9_scu_map.pfn = __phys_to_pfn(base);
- /* Expected address is in vmalloc area that's why simple assign here */
- zynq_cortex_a9_scu_map.virtual = base;
- iotable_init(&zynq_cortex_a9_scu_map, 1);
- zynq_scu_base = (void __iomem *)base;
- BUG_ON(!zynq_scu_base);
-}
-
-/**
- * zynq_map_io - Create memory mappings needed for early I/O.
- */
-static void __init zynq_map_io(void)
-{
- debug_ll_io_init();
- zynq_scu_map_io();
-}
-
static void __init zynq_irq_init(void)
{
zynq_early_slcr_init();
@@ -196,7 +166,7 @@ DT_MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
.l2c_aux_val = 0x00400000,
.l2c_aux_mask = 0xffbfffff,
.smp = smp_ops(zynq_smp_ops),
- .map_io = zynq_map_io,
+ .map_io = debug_ll_io_init,
.init_irq = zynq_irq_init,
.init_machine = zynq_init_machine,
.init_late = zynq_init_late,
@@ -33,8 +33,6 @@ extern int zynq_cpun_start(u32 address, int cpu);
extern const struct smp_operations zynq_smp_ops;
#endif
-extern void __iomem *zynq_scu_base;
-
void zynq_pm_late_init(void);
static inline void zynq_core_pm_init(void)
@@ -33,6 +33,7 @@
* be called from zynq_cpun_start() because it is not in __init section.
*/
static int ncores;
+static void __iomem *zynq_scu_base;
int zynq_cpun_start(u32 address, int cpu)
{
@@ -108,6 +109,7 @@ static void __init zynq_smp_init_cpus(void)
static void __init zynq_smp_prepare_cpus(unsigned int max_cpus)
{
+ zynq_scu_base = of_scu_get_base();
scu_enable(zynq_scu_base);
}
Now as we have of_scu_enable which takes care of mapping scu base from DT, lets use it. At the same time this patch cleans up mach-zynq platform files by removing static mapping of SCU and dropping zynq_scu_map_io and zynq_map_io functions. CC: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> --- arch/arm/mach-zynq/common.c | 32 +------------------------------- arch/arm/mach-zynq/common.h | 2 -- arch/arm/mach-zynq/platsmp.c | 2 ++ 3 files changed, 3 insertions(+), 33 deletions(-)