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ARM: mvebu: add 25MHz fixed clock for Armada XP 

Armada XP timers can be run from a 25MHz fixed clock. Add the corrsponding
clock and clock alias to SoC setup.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This commit is contained in:
Sebastian Hesselbarth 2014-04-14 10:12:09 +02:00 committed by Sascha Hauer
parent 5be6482b48
commit 7e750b691c
1 changed files with 5 additions and 0 deletions
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5
arch/arm/mach-mvebu/armada-370-xp.c
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@ -27,6 +27,7 @@
ARMADA_370_XP_UARTn_BASE(CONFIG_MVEBU_CONSOLE_UART)
static struct clk *tclk;
static struct clk *refclk;
static inline void armada_370_xp_memory_find(unsigned long *phys_base,
unsigned long *phys_size)
@ -92,6 +93,7 @@ static int armada_xp_init_clocks(void)
{
/* On Armada XP, the TCLK frequency is always 250 Mhz */
tclk = clk_fixed("tclk", 250000000);
refclk = clk_fixed("ref25M", 25000000);
return 0;
}
#define armada_370_xp_init_clocks() armada_xp_init_clocks()
@ -106,6 +108,9 @@ static int armada_370_xp_init_soc(void)
armada_370_xp_init_clocks();
clkdev_add_physbase(tclk, (unsigned int)ARMADA_370_XP_TIMER_BASE, NULL);
if (refclk && !IS_ERR(refclk))
clkdev_add_physbase(refclk, (u32)ARMADA_370_XP_TIMER_BASE,
"fixed");
add_generic_device("mvebu-timer", DEVICE_ID_SINGLE, NULL,
(unsigned int)ARMADA_370_XP_TIMER_BASE, 0x30,
IORESOURCE_MEM, NULL);