ARM: l2c: tegra: remove cache size override
authorRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 19 Mar 2014 01:17:21 +0000 (01:17 +0000)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 29 May 2014 23:50:10 +0000 (00:50 +0100)
The cache size should already be present in the L2 cache auxiliary
control register: it is part of the integration process to configure
the hardware IP.  Most platforms get this right, yet still many
cargo-cult program, and assume that they always need specifying to
the L2 cache code.  Remove them so we can find out which really need
this.

Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/mach-tegra/tegra.c

index ecbb5411a1045ea0b72c416ddb2a04ea6d2bffe1..fb802e24b64706a8e78fa9aaf89525ce052ae54f 100644 (file)
@@ -73,25 +73,9 @@ u32 tegra_uart_config[3] = {
 static void __init tegra_init_cache(void)
 {
 #ifdef CONFIG_CACHE_L2X0
-       static const struct of_device_id pl310_ids[] __initconst = {
-               { .compatible = "arm,pl310-cache",  },
-               {}
-       };
-
-       struct device_node *np;
        int ret;
-       void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
-       u32 aux_ctrl, cache_type;
-
-       np = of_find_matching_node(NULL, pl310_ids);
-       if (!np)
-               return;
-
-       cache_type = readl(p + L2X0_CACHE_TYPE);
-       aux_ctrl = (cache_type & 0x700) << (17-8);
-       aux_ctrl |= 0x3c400001;
 
-       ret = l2x0_of_init(aux_ctrl, 0xc200c3fe);
+       ret = l2x0_of_init(0x3c400001, 0xc20fc3fe);
        if (!ret)
                l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
 #endif