openwrt-archive/target/linux/ipq806x/patches-3.18/160-clk-qcom-Add-EBI2-clocks-for-IPQ806x.patch

From 4c385b25fab119144bffb255ad77712fe586ac10 Mon Sep 17 00:00:00 2001
From: Archit Taneja <architt@codeaurora.org>
Date: Thu, 2 Apr 2015 11:20:41 +0530
Subject: [PATCH] clk: qcom: Add EBI2 clocks for IPQ806x

The NAND controller within EBI2 requires EBI2_CLK and
EBI2_ALWAYS_ON_CLK clocks.  Create structs for these clocks so
that they can be used by the NAND controller driver. Add an entry
for EBI2_AON_CLK in the gcc-ipq806x DT binding document.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
 drivers/clk/qcom/gcc-ipq806x.c               | 32 ++++++++++++++++++++++++++++
 include/dt-bindings/clock/qcom,gcc-ipq806x.h |  1 +
 2 files changed, 33 insertions(+)

--- a/drivers/clk/qcom/gcc-ipq806x.c
+++ b/drivers/clk/qcom/gcc-ipq806x.c
@@ -2239,6 +2239,36 @@ static struct clk_branch usb_fs1_h_clk =
 	},
 };
 
+static struct clk_branch ebi2_clk = {
+	.hwcg_reg = 0x3b00,
+	.hwcg_bit = 6,
+	.halt_reg = 0x2fcc,
+	.halt_bit = 1,
+	.clkr = {
+		.enable_reg = 0x3b00,
+		.enable_mask = BIT(4),
+		.hw.init = &(struct clk_init_data){
+			.name = "ebi2_clk",
+			.ops = &clk_branch_ops,
+			.flags = CLK_IS_ROOT,
+		},
+	},
+};
+
+static struct clk_branch ebi2_aon_clk = {
+	.halt_reg = 0x2fcc,
+	.halt_bit = 0,
+	.clkr = {
+		.enable_reg = 0x3b00,
+		.enable_mask = BIT(8),
+		.hw.init = &(struct clk_init_data){
+			.name = "ebi2_always_on_clk",
+			.ops = &clk_branch_ops,
+			.flags = CLK_IS_ROOT,
+		},
+	},
+};
+
 static struct clk_regmap *gcc_ipq806x_clks[] = {
 	[PLL0] = &pll0.clkr,
 	[PLL0_VOTE] = &pll0_vote,
@@ -2341,6 +2371,8 @@ static struct clk_regmap *gcc_ipq806x_cl
 	[USB_FS1_XCVR_SRC] = &usb_fs1_xcvr_clk_src.clkr,
 	[USB_FS1_XCVR_CLK] = &usb_fs1_xcvr_clk.clkr,
 	[USB_FS1_SYSTEM_CLK] = &usb_fs1_sys_clk.clkr,
+	[EBI2_CLK] = &ebi2_clk.clkr,
+	[EBI2_AON_CLK] = &ebi2_aon_clk.clkr,
 	[PLL9] = &hfpll0.clkr,
 	[PLL10] = &hfpll1.clkr,
 	[PLL12] = &hfpll_l2.clkr,
--- a/include/dt-bindings/clock/qcom,gcc-ipq806x.h
+++ b/include/dt-bindings/clock/qcom,gcc-ipq806x.h
@@ -289,5 +289,6 @@
 #define UBI32_CORE2_CLK_SRC			278
 #define UBI32_CORE1_CLK				279
 #define UBI32_CORE2_CLK				280
+#define EBI2_AON_CLK				281
 
 #endif