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>

diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 48cf74d284ecba3801cf6c1801c293689bfe1541..a51501ad7e8373e697c2c8d53141b881cf54f1ff 100644 (file)
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -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)
@@ -212,18 +228,12 @@ 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);