[cns3xxx]: add nol2x0 cmdline to disable l2x0 cache
[openwrt/svn-archive/archive.git] / target / linux / cns3xxx / patches-3.3 / 097-l2x0_cmdline_disable.patch
1 --- a/arch/arm/mach-cns3xxx/core.c
2 +++ b/arch/arm/mach-cns3xxx/core.c
3 @@ -284,11 +284,24 @@ struct sys_timer cns3xxx_timer = {
4
5 #ifdef CONFIG_CACHE_L2X0
6
7 +static int cns3xxx_l2x0_enable = 1;
8 +
9 +static int __init cns3xxx_l2x0_disable(char *s)
10 +{
11 + cns3xxx_l2x0_enable = 0;
12 + return 1;
13 +}
14 +__setup("nol2x0", cns3xxx_l2x0_disable);
15 +
16 void __init cns3xxx_l2x0_init(void)
17 {
18 - void __iomem *base = ioremap(CNS3XXX_L2C_BASE, SZ_4K);
19 + void __iomem *base;
20 u32 val;
21
22 + if (!cns3xxx_l2x0_enable)
23 + return;
24 +
25 + base = ioremap(CNS3XXX_L2C_BASE, SZ_4K);
26 if (WARN_ON(!base))
27 return;
28
29 @@ -321,6 +334,7 @@ void __init cns3xxx_l2x0_init(void)
30 /* 32 KiB, 8-way, parity disable */
31 l2x0_init(base, 0x00540000, 0xfe000fff);
32 }
33 +arch_initcall(cns3xxx_l2x0_init);
34
35 #endif /* CONFIG_CACHE_L2X0 */
36
37 --- a/arch/arm/mach-cns3xxx/cns3420vb.c
38 +++ b/arch/arm/mach-cns3xxx/cns3420vb.c
39 @@ -193,8 +193,6 @@ static struct platform_device *cns3420_p
40
41 static void __init cns3420_init(void)
42 {
43 - cns3xxx_l2x0_init();
44 -
45 platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
46
47 cns3xxx_ahci_init();