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Diffstat (limited to 'target/linux/imx6/patches-3.14/0008-ARM-imx-add-speed-grading-check-for-i.mx6-soc.patch')
-rw-r--r--target/linux/imx6/patches-3.14/0008-ARM-imx-add-speed-grading-check-for-i.mx6-soc.patch76
1 files changed, 0 insertions, 76 deletions
diff --git a/target/linux/imx6/patches-3.14/0008-ARM-imx-add-speed-grading-check-for-i.mx6-soc.patch b/target/linux/imx6/patches-3.14/0008-ARM-imx-add-speed-grading-check-for-i.mx6-soc.patch
deleted file mode 100644
index 70b7014314..0000000000
--- a/target/linux/imx6/patches-3.14/0008-ARM-imx-add-speed-grading-check-for-i.mx6-soc.patch
+++ /dev/null
@@ -1,76 +0,0 @@
-From c962a0996335fae7f79e64677f47d4784b86f692 Mon Sep 17 00:00:00 2001
-From: Anson Huang <b20788@freescale.com>
-Date: Wed, 12 Feb 2014 17:57:03 +0800
-Subject: [PATCH] ARM: imx: add speed grading check for i.mx6 soc
-
-The fuse map of speed_grading[1:0] defines the max speed
-of ARM, see below the definition:
-
-2b'11: 1200000000Hz;
-2b'10: 996000000Hz;
-2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
-2b'00: 792000000Hz;
-
-Need to remove all illegal setpoints according to fuse
-map.
-
-Signed-off-by: Anson Huang <b20788@freescale.com>
-Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
----
- arch/arm/mach-imx/mach-imx6q.c | 26 +++++++++++++++++++++++---
- 1 file changed, 23 insertions(+), 3 deletions(-)
-
---- a/arch/arm/mach-imx/mach-imx6q.c
-+++ b/arch/arm/mach-imx/mach-imx6q.c
-@@ -219,8 +219,10 @@ static void __init imx6q_init_machine(vo
- #define OCOTP_CFG3 0x440
- #define OCOTP_CFG3_SPEED_SHIFT 16
- #define OCOTP_CFG3_SPEED_1P2GHZ 0x3
-+#define OCOTP_CFG3_SPEED_996MHZ 0x2
-+#define OCOTP_CFG3_SPEED_852MHZ 0x1
-
--static void __init imx6q_opp_check_1p2ghz(struct device *cpu_dev)
-+static void __init imx6q_opp_check_speed_grading(struct device *cpu_dev)
- {
- struct device_node *np;
- void __iomem *base;
-@@ -238,11 +240,29 @@ static void __init imx6q_opp_check_1p2gh
- goto put_node;
- }
-
-+ /*
-+ * SPEED_GRADING[1:0] defines the max speed of ARM:
-+ * 2b'11: 1200000000Hz;
-+ * 2b'10: 996000000Hz;
-+ * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
-+ * 2b'00: 792000000Hz;
-+ * We need to set the max speed of ARM according to fuse map.
-+ */
- val = readl_relaxed(base + OCOTP_CFG3);
- val >>= OCOTP_CFG3_SPEED_SHIFT;
-- if ((val & 0x3) != OCOTP_CFG3_SPEED_1P2GHZ)
-+ val &= 0x3;
-+
-+ if (val != OCOTP_CFG3_SPEED_1P2GHZ)
- if (dev_pm_opp_disable(cpu_dev, 1200000000))
- pr_warn("failed to disable 1.2 GHz OPP\n");
-+ if (val < OCOTP_CFG3_SPEED_996MHZ)
-+ if (dev_pm_opp_disable(cpu_dev, 996000000))
-+ pr_warn("failed to disable 996 MHz OPP\n");
-+ if (cpu_is_imx6q()) {
-+ if (val != OCOTP_CFG3_SPEED_852MHZ)
-+ if (dev_pm_opp_disable(cpu_dev, 852000000))
-+ pr_warn("failed to disable 852 MHz OPP\n");
-+ }
-
- put_node:
- of_node_put(np);
-@@ -268,7 +288,7 @@ static void __init imx6q_opp_init(void)
- goto put_node;
- }
-
-- imx6q_opp_check_1p2ghz(cpu_dev);
-+ imx6q_opp_check_speed_grading(cpu_dev);
-
- put_node:
- of_node_put(np);