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Date: Tue, 12 May 2015 14:00:36 +0300
From: Georgi Djakov <georgi.djakov@...aro.org>
To: sboyd@...eaurora.org
Cc: mturquette@...aro.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH 1/3] clk: qcom: Add MSM8916 iommu clocks
Add support for the msm8916 TCU clocks that are needed for IOMMU.
Signed-off-by: Georgi Djakov <georgi.djakov@...aro.org>
---
drivers/clk/qcom/gcc-msm8916.c | 78 ++++++++++++++++++++++++++
include/dt-bindings/clock/qcom,gcc-msm8916.h | 4 ++
2 files changed, 82 insertions(+)
diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c
index c66f7bc2ae87..7ad4c3751f43 100644
--- a/drivers/clk/qcom/gcc-msm8916.c
+++ b/drivers/clk/qcom/gcc-msm8916.c
@@ -2358,6 +2358,80 @@ static struct clk_branch gcc_sdcc2_apps_clk = {
},
};
+static const struct freq_tbl ftbl_bimc_ddr_clk[] = {
+ F(19200000, P_XO, 1, 0, 0),
+ F(100000000, P_GPLL0, 8, 0, 0),
+ F(200000000, P_GPLL0, 4, 0, 0),
+ F(266500000, P_BIMC, 4, 0, 0),
+ F(400000000, P_GPLL0, 2, 0, 0),
+ F(533000000, P_BIMC, 2, 0, 0),
+ F(800000000, P_GPLL0, 1, 0, 0),
+ F(1066000000, P_BIMC, 1, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 bimc_ddr_clk_src = {
+ .cmd_rcgr = 0x32004,
+ .hid_width = 5,
+ .parent_map = gcc_xo_gpll0_bimc_map,
+ .freq_tbl = ftbl_bimc_ddr_clk,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "bimc_ddr_clk_src",
+ .parent_names = gcc_xo_gpll0_bimc,
+ .num_parents = 3,
+ .ops = &clk_rcg2_ops,
+ },
+};
+
+static struct clk_branch gcc_bimc_clk = {
+ .halt_reg = 0x3101c,
+ .clkr = {
+ .enable_reg = 0x3101c,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_bimc_clk",
+ .parent_names = (const char *[]){
+ "bimc_ddr_clk_src",
+ },
+ .num_parents = 1,
+ .flags = CLK_IGNORE_UNUSED,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_apss_tcu_clk = {
+ .halt_reg = 0x12018,
+ .clkr = {
+ .enable_reg = 0x4500c,
+ .enable_mask = BIT(1),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_apss_tcu_clk",
+ .parent_names = (const char *[]){
+ "gcc_bimc_clk",
+ },
+ .num_parents = 1,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_gfx_tcu_clk = {
+ .halt_reg = 0x12020,
+ .clkr = {
+ .enable_reg = 0x4500c,
+ .enable_mask = BIT(2),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_gfx_tcu_clk",
+ .parent_names = (const char *[]){
+ "gcc_bimc_clk",
+ },
+ .num_parents = 1,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
static struct clk_branch gcc_gtcu_ahb_clk = {
.halt_reg = 0x12044,
.clkr = {
@@ -2701,6 +2775,10 @@ static struct clk_regmap *gcc_msm8916_clocks[] = {
[GCC_VENUS0_AHB_CLK] = &gcc_venus0_ahb_clk.clkr,
[GCC_VENUS0_AXI_CLK] = &gcc_venus0_axi_clk.clkr,
[GCC_VENUS0_VCODEC0_CLK] = &gcc_venus0_vcodec0_clk.clkr,
+ [BIMC_DDR_CLK_SRC] = &bimc_ddr_clk_src.clkr,
+ [GCC_BIMC_CLK] = &gcc_bimc_clk.clkr,
+ [GCC_APSS_TCU_CLK] = &gcc_apss_tcu_clk.clkr,
+ [GCC_GFX_TCU_CLK] = &gcc_gfx_tcu_clk.clkr,
};
static const struct qcom_reset_map gcc_msm8916_resets[] = {
diff --git a/include/dt-bindings/clock/qcom,gcc-msm8916.h b/include/dt-bindings/clock/qcom,gcc-msm8916.h
index e430f644dd6c..0af3b49431df 100644
--- a/include/dt-bindings/clock/qcom,gcc-msm8916.h
+++ b/include/dt-bindings/clock/qcom,gcc-msm8916.h
@@ -152,5 +152,9 @@
#define GCC_VENUS0_AHB_CLK 135
#define GCC_VENUS0_AXI_CLK 136
#define GCC_VENUS0_VCODEC0_CLK 137
+#define BIMC_DDR_CLK_SRC 138
+#define GCC_BIMC_CLK 139
+#define GCC_APSS_TCU_CLK 140
+#define GCC_GFX_TCU_CLK 141
#endif
--
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