diff options
Diffstat (limited to 'arch/arm/mach-davinci/id.c')
| -rw-r--r-- | arch/arm/mach-davinci/id.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/arch/arm/mach-davinci/id.c b/arch/arm/mach-davinci/id.c index bf067d60491..018b994cd79 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); } |