summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-integrator
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-integrator')
-rw-r--r--arch/arm/mach-integrator/common.h1
-rw-r--r--arch/arm/mach-integrator/core.c19
-rw-r--r--arch/arm/mach-integrator/integrator_ap.c3
-rw-r--r--arch/arm/mach-integrator/integrator_cp.c3
4 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h
new file mode 100644
index 000000000000..5f96e1518aa9
--- /dev/null
+++ b/arch/arm/mach-integrator/common.h
@@ -0,0 +1 @@
+void integrator_reserve(void);
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index b02cfc06e0ae..8f4fb6d638f7 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/memblock.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/termios.h>
@@ -30,6 +31,7 @@
#include <asm/system.h>
#include <asm/leds.h>
#include <asm/mach/time.h>
+#include <asm/pgtable.h>
static struct amba_pl010_data integrator_uart_data;
@@ -119,8 +121,13 @@ static struct clk uartclk = {
.rate = 14745600,
};
+static struct clk dummy_apb_pclk;
+
static struct clk_lookup lookups[] = {
- { /* UART0 */
+ { /* Bus clock */
+ .con_id = "apb_pclk",
+ .clk = &dummy_apb_pclk,
+ }, { /* UART0 */
.dev_id = "mb:16",
.clk = &uartclk,
}, { /* UART1 */
@@ -215,3 +222,13 @@ void cm_control(u32 mask, u32 set)
}
EXPORT_SYMBOL(cm_control);
+
+/*
+ * We need to stop things allocating the low memory; ideally we need a
+ * better implementation of GFP_DMA which does not assume that DMA-able
+ * memory starts at zero.
+ */
+void __init integrator_reserve(void)
+{
+ memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET);
+}
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 227cf4d05088..6ab5a03ab9d8 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -48,6 +48,8 @@
#include <asm/mach/map.h>
#include <asm/mach/time.h>
+#include "common.h"
+
/*
* All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx
* is the (PA >> 12).
@@ -502,6 +504,7 @@ MACHINE_START(INTEGRATOR, "ARM-Integrator")
.io_pg_offst = ((0xf1600000) >> 18) & 0xfffc,
.boot_params = 0x00000100,
.map_io = ap_map_io,
+ .reserve = integrator_reserve,
.init_irq = ap_init_irq,
.timer = &ap_timer,
.init_machine = ap_init,
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index cde57b2b83b5..05db40e3c4f7 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -43,6 +43,8 @@
#include <plat/timer-sp.h>
+#include "common.h"
+
#define INTCP_PA_FLASH_BASE 0x24000000
#define INTCP_FLASH_SIZE SZ_32M
@@ -601,6 +603,7 @@ MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
.io_pg_offst = ((0xf1600000) >> 18) & 0xfffc,
.boot_params = 0x00000100,
.map_io = intcp_map_io,
+ .reserve = integrator_reserve,
.init_irq = intcp_init_irq,
.timer = &cp_timer,
.init_machine = intcp_init,
OpenPOWER on IntegriCloud