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Diffstat (limited to 'arch/arm/mach-davinci/id.c')
-rw-r--r--arch/arm/mach-davinci/id.c35
1 files changed, 29 insertions, 6 deletions
diff --git a/arch/arm/mach-davinci/id.c b/arch/arm/mach-davinci/id.c
index bf067d604918..018b994cd794 100644
--- a/arch/arm/mach-davinci/id.c
+++ b/arch/arm/mach-davinci/id.c
@@ -15,7 +15,9 @@
#include <linux/init.h>
#include <linux/io.h>
-#define JTAG_ID_BASE 0x01c40028
+#define JTAG_ID_BASE IO_ADDRESS(0x01c40028)
+
+static unsigned int davinci_revision;
struct davinci_id {
u8 variant; /* JTAG ID bits 31:28 */
@@ -33,6 +35,20 @@ static struct davinci_id davinci_ids[] __initdata = {
.manufacturer = 0x017,
.type = 0x64460000,
},
+ {
+ /* DM646X */
+ .part_no = 0xb770,
+ .variant = 0x0,
+ .manufacturer = 0x017,
+ .type = 0x64670000,
+ },
+ {
+ /* DM355 */
+ .part_no = 0xb73b,
+ .variant = 0x0,
+ .manufacturer = 0x00f,
+ .type = 0x03550000,
+ },
};
/*
@@ -42,7 +58,7 @@ static u16 __init davinci_get_part_no(void)
{
u32 dev_id, part_no;
- dev_id = davinci_readl(JTAG_ID_BASE);
+ dev_id = __raw_readl(JTAG_ID_BASE);
part_no = ((dev_id >> 12) & 0xffff);
@@ -56,13 +72,19 @@ static u8 __init davinci_get_variant(void)
{
u32 variant;
- variant = davinci_readl(JTAG_ID_BASE);
+ variant = __raw_readl(JTAG_ID_BASE);
variant = (variant >> 28) & 0xf;
return variant;
}
+unsigned int davinci_rev(void)
+{
+ return davinci_revision >> 16;
+}
+EXPORT_SYMBOL(davinci_rev);
+
void __init davinci_check_revision(void)
{
int i;
@@ -75,7 +97,7 @@ void __init davinci_check_revision(void)
/* First check only the major version in a safe way */
for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
if (part_no == (davinci_ids[i].part_no)) {
- system_rev = davinci_ids[i].type;
+ davinci_revision = davinci_ids[i].type;
break;
}
}
@@ -84,10 +106,11 @@ void __init davinci_check_revision(void)
for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
if (part_no == davinci_ids[i].part_no &&
variant == davinci_ids[i].variant) {
- system_rev = davinci_ids[i].type;
+ davinci_revision = davinci_ids[i].type;
break;
}
}
- printk("DaVinci DM%04x variant 0x%x\n", system_rev >> 16, variant);
+ printk(KERN_INFO "DaVinci DM%04x variant 0x%x\n",
+ davinci_rev(), variant);
}