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ARM: l2c: omap2: implement new write_sec method 

With the write_sec method, we no longer need to override the default
L2C disable method, and we no longer need the L2C set_debug method.
Both of these can be handled via the write_sec method.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2014-03-16 17:45:56 +00:00
parent 8523f61537
commit 36827edd2e
1 changed files with 26 additions and 16 deletions
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42
arch/arm/mach-omap2/omap4-common.c
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@ -167,17 +167,33 @@ void __iomem *omap4_get_l2cache_base(void)
return l2cache_base;
}
static void omap4_l2x0_disable(void)
static void omap4_l2c310_write_sec(unsigned long val, unsigned reg)
{
outer_flush_all();
/* Disable PL310 L2 Cache controller */
omap_smc1(0x102, 0x0);
}
unsigned smc_op;
static void omap4_l2x0_set_debug(unsigned long val)
{
/* Program PL310 L2 Cache controller debug register */
omap_smc1(0x100, val);
switch (reg) {
case L2X0_CTRL:
smc_op = OMAP4_MON_L2X0_CTRL_INDEX;
break;
case L2X0_AUX_CTRL:
smc_op = OMAP4_MON_L2X0_AUXCTRL_INDEX;
break;
case L2X0_DEBUG_CTRL:
smc_op = OMAP4_MON_L2X0_DBG_CTRL_INDEX;
break;
case L310_PREFETCH_CTRL:
smc_op = OMAP4_MON_L2X0_PREFETCH_INDEX;
break;
default:
WARN_ONCE(1, "OMAP L2C310: ignoring write to reg 0x%x\n", reg);
return;
}
omap_smc1(smc_op, val);
}
static int __init omap_l2_cache_init(void)
@ -211,18 +227,12 @@ static int __init omap_l2_cache_init(void)
/* Enable PL310 L2 Cache controller */
omap_smc1(0x102, 0x1);
outer_cache.write_sec = omap4_l2c310_write_sec;
if (of_have_populated_dt())
l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
else
l2x0_init(l2cache_base, aux_ctrl, L2X0_AUX_CTRL_MASK);
/*
* Override default outer_cache.disable with a OMAP4
* specific one
*/
outer_cache.disable = omap4_l2x0_disable;
outer_cache.set_debug = omap4_l2x0_set_debug;
return 0;
}
omap_early_initcall(omap_l2_cache_init);