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authorJiri Kosina <jkosina@suse.cz>2010-08-04 15:14:38 +0200
committerJiri Kosina <jkosina@suse.cz>2010-08-04 15:14:38 +0200
commitd790d4d583aeaed9fc6f8a9f4d9f8ce6b1c15c7f (patch)
tree854ab394486288d40fa8179cbfaf66e8bdc44b0f /arch/arm/mach-u300
parent73b2c7165b76b20eb1290e7efebc33cfd21db1ca (diff)
parent3a09b1be53d23df780a0cd0e4087a05e2ca4a00c (diff)
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Merge branch 'master' into for-next
Diffstat (limited to 'arch/arm/mach-u300')
-rw-r--r--arch/arm/mach-u300/clock.c6
-rw-r--r--arch/arm/mach-u300/include/mach/memory.h8
-rw-r--r--arch/arm/mach-u300/u300.c17
3 files changed, 23 insertions, 8 deletions
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
index 5af71d5ba665..5d12d547789e 100644
--- a/arch/arm/mach-u300/clock.c
+++ b/arch/arm/mach-u300/clock.c
@@ -1212,6 +1212,8 @@ static struct clk ppm_clk = {
};
#endif
+static struct clk dummy_apb_pclk;
+
#define DEF_LOOKUP(devid, clkref) \
{ \
.dev_id = devid, \
@@ -1223,6 +1225,10 @@ static struct clk ppm_clk = {
* look up through clockdevice.
*/
static struct clk_lookup lookups[] = {
+ {
+ .con_id = "apb_pclk",
+ .clk = &dummy_apb_pclk,
+ },
/* Connected directly to the AMBA bus */
DEF_LOOKUP("amba", &amba_clk),
DEF_LOOKUP("cpu", &cpu_clk),
diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h
index ab000df7fc03..bf134bcc129d 100644
--- a/arch/arm/mach-u300/include/mach/memory.h
+++ b/arch/arm/mach-u300/include/mach/memory.h
@@ -35,14 +35,6 @@
#endif
/*
- * TCM memory whereabouts
- */
-#define ITCM_OFFSET 0xffff2000
-#define ITCM_END 0xffff3fff
-#define DTCM_OFFSET 0xffff4000
-#define DTCM_END 0xffff5fff
-
-/*
* We enable a real big DMA buffer if need be.
*/
#define CONSISTENT_DMA_SIZE SZ_4M
diff --git a/arch/arm/mach-u300/u300.c b/arch/arm/mach-u300/u300.c
index d2a0b8847a18..bfcda9820888 100644
--- a/arch/arm/mach-u300/u300.c
+++ b/arch/arm/mach-u300/u300.c
@@ -14,6 +14,7 @@
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
+#include <linux/memblock.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
@@ -22,6 +23,21 @@
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
+static void __init u300_reserve(void)
+{
+ /*
+ * U300 - This platform family can share physical memory
+ * between two ARM cpus, one running Linux and the other
+ * running another OS.
+ */
+#ifdef CONFIG_MACH_U300_SINGLE_RAM
+#if ((CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1) == 1) && \
+ CONFIG_MACH_U300_2MB_ALIGNMENT_FIX
+ memblock_reserve(PHYS_OFFSET, 0x00100000);
+#endif
+#endif
+}
+
static void __init u300_init_machine(void)
{
u300_init_devices();
@@ -49,6 +65,7 @@ MACHINE_START(U300, MACH_U300_STRING)
.io_pg_offst = ((U300_AHB_PER_VIRT_BASE) >> 18) & 0xfffc,
.boot_params = BOOT_PARAMS_OFFSET,
.map_io = u300_map_io,
+ .reserve = u300_reserve,
.init_irq = u300_init_irq,
.timer = &u300_timer,
.init_machine = u300_init_machine,