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| author | Nick Bowler <nbowler@elliptictech.com> | 2011-07-20 15:43:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-08-24 09:45:21 +0100 |
| commit | 0ebb962e00a52b644433065d224ed89f72a84756 (patch) | |
| tree | 349a518542f801d0e34a1afd3faddb4294e89b61 /arch | |
| parent | 0d6cfa3a75f5cde5b3ca0dde748fd22625b4f34c (diff) | |
| download | linux-0ebb962e00a52b644433065d224ed89f72a84756.tar.bz2 | |
ARM: 7003/1: vexpress: Add clock definition for the SP805.
It seems that an entry for the SP805 watchdog in the table of clocks was
missing. This results in the sp805_wdt driver rejecting the device with
the following errors:
sp805-wdt mb:wdt: Clock not found
sp805-wdt mb:wdt: Probe Failed!!!
sp805-wdt: probe of mb:wdt failed with error -2
While not obviously stated in the hardware docs, the onboard SP810's
"REFCLK" is connected to a 32.768KHz crystal, and this drives the
watchdog. Add a struct clk and corresponding lookup entry for it.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-vexpress/v2m.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 9e6b93b1a043..d0d267a8d3f9 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -318,6 +318,10 @@ static struct clk v2m_sp804_clk = { .rate = 1000000, }; +static struct clk v2m_ref_clk = { + .rate = 32768, +}; + static struct clk dummy_apb_pclk; static struct clk_lookup v2m_lookups[] = { @@ -348,6 +352,9 @@ static struct clk_lookup v2m_lookups[] = { }, { /* CLCD */ .dev_id = "mb:clcd", .clk = &osc1_clk, + }, { /* SP805 WDT */ + .dev_id = "mb:wdt", + .clk = &v2m_ref_clk, }, { /* SP804 timers */ .dev_id = "sp804", .con_id = "v2m-timer0", |