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Diffstat (limited to 'target/linux/bcm53xx/patches-4.1/075-ARM-8391-1-l2c-add-options-to-overwrite-prefetching-.patch')
-rw-r--r--target/linux/bcm53xx/patches-4.1/075-ARM-8391-1-l2c-add-options-to-overwrite-prefetching-.patch60
1 files changed, 0 insertions, 60 deletions
diff --git a/target/linux/bcm53xx/patches-4.1/075-ARM-8391-1-l2c-add-options-to-overwrite-prefetching-.patch b/target/linux/bcm53xx/patches-4.1/075-ARM-8391-1-l2c-add-options-to-overwrite-prefetching-.patch
deleted file mode 100644
index 857d2c4380..0000000000
--- a/target/linux/bcm53xx/patches-4.1/075-ARM-8391-1-l2c-add-options-to-overwrite-prefetching-.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-From ec3bd0e68a679a7af2c46af1ddc9af8b534a8b0e Mon Sep 17 00:00:00 2001
-From: Hauke Mehrtens <hauke@hauke-m.de>
-Date: Wed, 10 Jun 2015 20:23:24 +0100
-Subject: [PATCH] ARM: 8391/1: l2c: add options to overwrite prefetching
- behavior
-
-These options make it possible to overwrites the data and instruction
-prefetching behavior of the arm pl310 cache controller.
-
-Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
-Acked-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
----
- Documentation/devicetree/bindings/arm/l2cc.txt | 5 +++++
- arch/arm/mm/cache-l2x0.c | 20 ++++++++++++++++++++
- 2 files changed, 25 insertions(+)
-
---- a/Documentation/devicetree/bindings/arm/l2cc.txt
-+++ b/Documentation/devicetree/bindings/arm/l2cc.txt
-@@ -67,6 +67,11 @@ Optional properties:
- disable if zero.
- - arm,prefetch-offset : Override prefetch offset value. Valid values are
- 0-7, 15, 23, and 31.
-+- prefetch-data : Data prefetch. Value: <0> (forcibly disable), <1>
-+ (forcibly enable), property absent (retain settings set by firmware)
-+- prefetch-instr : Instruction prefetch. Value: <0> (forcibly disable),
-+ <1> (forcibly enable), property absent (retain settings set by
-+ firmware)
-
- Example:
-
---- a/arch/arm/mm/cache-l2x0.c
-+++ b/arch/arm/mm/cache-l2x0.c
-@@ -1221,6 +1221,26 @@ static void __init l2c310_of_parse(const
- pr_err("L2C-310 OF arm,prefetch-offset property value is missing\n");
- }
-
-+ ret = of_property_read_u32(np, "prefetch-data", &val);
-+ if (ret == 0) {
-+ if (val)
-+ prefetch |= L310_PREFETCH_CTRL_DATA_PREFETCH;
-+ else
-+ prefetch &= ~L310_PREFETCH_CTRL_DATA_PREFETCH;
-+ } else if (ret != -EINVAL) {
-+ pr_err("L2C-310 OF prefetch-data property value is missing\n");
-+ }
-+
-+ ret = of_property_read_u32(np, "prefetch-instr", &val);
-+ if (ret == 0) {
-+ if (val)
-+ prefetch |= L310_PREFETCH_CTRL_INSTR_PREFETCH;
-+ else
-+ prefetch &= ~L310_PREFETCH_CTRL_INSTR_PREFETCH;
-+ } else if (ret != -EINVAL) {
-+ pr_err("L2C-310 OF prefetch-instr property value is missing\n");
-+ }
-+
- l2x0_saved_regs.prefetch_ctrl = prefetch;
- }
-