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authorBarry Song <Baohua.Song@csr.com>2012-12-20 17:20:46 +0800
committerBarry Song <Barry.Song@csr.com>2013-01-22 19:37:15 +0800
commitea38960fb63ab5cce2442fa88f5041bcfb1ae8e3 (patch)
tree88553d5fcf07d5aa59fe59496f47e3c72ccf8b5d /arch/arm/mach-prima2
parent20ddfa9324b470764125f5ca555c315b5af13507 (diff)
downloadop-kernel-dev-ea38960fb63ab5cce2442fa88f5041bcfb1ae8e3.zip
op-kernel-dev-ea38960fb63ab5cce2442fa88f5041bcfb1ae8e3.tar.gz
ARM: PRIMA2: initialize l2x0 according to mach from DT
prima2 and marco have diffetent l2 cache configuration, so we initialize l2x0 cache based on dtb given to kernel. Signed-off-by: Barry Song <Baohua.Song@csr.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Diffstat (limited to 'arch/arm/mach-prima2')
-rw-r--r--arch/arm/mach-prima2/l2x0.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/arch/arm/mach-prima2/l2x0.c b/arch/arm/mach-prima2/l2x0.c
index c998377..cbcbe9c 100644
--- a/arch/arm/mach-prima2/l2x0.c
+++ b/arch/arm/mach-prima2/l2x0.c
@@ -11,19 +11,38 @@
#include <linux/of.h>
#include <asm/hardware/cache-l2x0.h>
-static struct of_device_id prima2_l2x0_ids[] = {
- { .compatible = "sirf,prima2-pl310-cache" },
+struct l2x0_aux
+{
+ u32 val;
+ u32 mask;
+};
+
+static struct l2x0_aux prima2_l2x0_aux __initconst = {
+ .val = 2 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT,
+ .mask = 0,
+};
+
+static struct l2x0_aux marco_l2x0_aux __initconst = {
+ .val = (2 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT) |
+ (1 << L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT),
+ .mask = L2X0_AUX_CTRL_MASK,
+};
+
+static struct of_device_id sirf_l2x0_ids[] __initconst = {
+ { .compatible = "sirf,prima2-pl310-cache", .data = &prima2_l2x0_aux, },
+ { .compatible = "sirf,marco-pl310-cache", .data = &marco_l2x0_aux, },
{},
};
static int __init sirfsoc_l2x0_init(void)
{
struct device_node *np;
+ const struct l2x0_aux *aux;
- np = of_find_matching_node(NULL, prima2_l2x0_ids);
+ np = of_find_matching_node(NULL, sirf_l2x0_ids);
if (np) {
- pr_info("Initializing prima2 L2 cache\n");
- return l2x0_of_init(0x40000, 0);
+ aux = of_match_node(sirf_l2x0_ids, np)->data;
+ return l2x0_of_init(aux->val, aux->mask);
}
return 0;
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