diff options
Diffstat (limited to 'arch/arm/mach-shmobile/clock-emev2.c')
| -rw-r--r-- | arch/arm/mach-shmobile/clock-emev2.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/clock-emev2.c b/arch/arm/mach-shmobile/clock-emev2.c index 73a12165931..5bc97de4a1e 100644 --- a/arch/arm/mach-shmobile/clock-emev2.c +++ b/arch/arm/mach-shmobile/clock-emev2.c @@ -40,6 +40,7 @@ #define USIB2SCLKDIV 0x65c #define USIB3SCLKDIV 0x660 #define STI_CLKSEL 0x688 +#define SMU_GENERAL_REG0 0x7c0 /* not pretty, but hey */ static void __iomem *smu_base; @@ -50,6 +51,11 @@ static void emev2_smu_write(unsigned long value, int offs) iowrite32(value, smu_base + offs); } +void emev2_set_boot_vector(unsigned long value) +{ + emev2_smu_write(value, SMU_GENERAL_REG0); +} + static struct clk_mapping smu_mapping = { .phys = EMEV2_SMU_BASE, .len = PAGE_SIZE, @@ -194,6 +200,18 @@ static struct clk_lookup lookups[] = { void __init emev2_clock_init(void) { int k, ret = 0; + static int is_setup; + + /* yuck, this is ugly as hell, but the non-smp case of clocks + * code is now designed to rely on ioremap() instead of static + * entity maps. in the case of smp we need access to the SMU + * register earlier than ioremap() is actually working without + * any static maps. to enable SMP in ugly but with dynamic + * mappings we have to call emev2_clock_init() from different + * places depending on UP and SMP... + */ + if (is_setup++) + return; smu_base = ioremap(EMEV2_SMU_BASE, PAGE_SIZE); BUG_ON(!smu_base); |