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Date: Thu, 7 Nov 2019 11:21:36 -0800
From: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To: mturquette@...libre.com, sboyd@...nel.org
Cc: agross@...nel.org, bjorn.andersson@...aro.org,
sibis@...eaurora.org, linux-arm-msm@...r.kernel.org,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Subject: [PATCH] clk: qcom: Enumerate clocks and reset needed to boot the 8998 modem
We need to control five additional clocks and a reset inorder to boot the
modem on msm8998. If we can boot the modem, we have a place to run the
wlan firmware and get wifi up and running.
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
---
drivers/clk/qcom/gcc-msm8998.c | 72 ++++++++++++++++++++
include/dt-bindings/clock/qcom,gcc-msm8998.h | 6 ++
2 files changed, 78 insertions(+)
diff --git a/drivers/clk/qcom/gcc-msm8998.c b/drivers/clk/qcom/gcc-msm8998.c
index 091acd59c1d6..cf31b5d03270 100644
--- a/drivers/clk/qcom/gcc-msm8998.c
+++ b/drivers/clk/qcom/gcc-msm8998.c
@@ -1266,6 +1266,72 @@ static struct clk_branch gcc_bimc_mss_q6_axi_clk = {
},
};
+static struct clk_branch gcc_mss_cfg_ahb_clk = {
+ .halt_reg = 0x8a000,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x8a000,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_mss_cfg_ahb_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_mss_snoc_axi_clk = {
+ .halt_reg = 0x8a03c,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x8a03c,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_mss_snoc_axi_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_mss_mnoc_bimc_axi_clk = {
+ .halt_reg = 0x8a004,
+ .halt_check = BRANCH_HALT,
+ .clkr = {
+ .enable_reg = 0x8a004,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_mss_mnoc_bimc_axi_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_boot_rom_ahb_clk = {
+ .halt_reg = 0x38004,
+ .halt_check = BRANCH_HALT_VOTED,
+ .hwcg_reg = 0x38004,
+ .hwcg_bit = 1,
+ .clkr = {
+ .enable_reg = 0x52004,
+ .enable_mask = BIT(10),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_boot_rom_ahb_clk",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gcc_mss_gpll0_div_clk_src = {
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x5200c,
+ .enable_mask = BIT(2),
+ .hw.init = &(struct clk_init_data){
+ .name = "gcc_mss_gpll0_div_clk_src",
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
static struct clk_branch gcc_blsp1_ahb_clk = {
.halt_reg = 0x17004,
.halt_check = BRANCH_HALT_VOTED,
@@ -2832,6 +2898,11 @@ static struct clk_regmap *gcc_msm8998_clocks[] = {
[GCC_USB3_CLKREF_CLK] = &gcc_usb3_clkref_clk.clkr,
[GCC_PCIE_CLKREF_CLK] = &gcc_pcie_clkref_clk.clkr,
[GCC_RX1_USB2_CLKREF_CLK] = &gcc_rx1_usb2_clkref_clk.clkr,
+ [GCC_MSS_CFG_AHB_CLK] = &gcc_mss_cfg_ahb_clk.clkr,
+ [GCC_BOOT_ROM_AHB_CLK] = &gcc_boot_rom_ahb_clk.clkr,
+ [GCC_MSS_GPLL0_DIV_CLK_SRC] = &gcc_mss_gpll0_div_clk_src.clkr,
+ [GCC_MSS_SNOC_AXI_CLK] = &gcc_mss_snoc_axi_clk.clkr,
+ [GCC_MSS_MNOC_BIMC_AXI_CLK] = &gcc_mss_mnoc_bimc_axi_clk.clkr,
};
static struct gdsc *gcc_msm8998_gdscs[] = {
@@ -2928,6 +2999,7 @@ static const struct qcom_reset_map gcc_msm8998_resets[] = {
[GCC_GPU_BCR] = { 0x71000 },
[GCC_SPSS_BCR] = { 0x72000 },
[GCC_OBT_ODT_BCR] = { 0x73000 },
+ [GCC_MSS_RESTART] = { 0x79000 },
[GCC_VS_BCR] = { 0x7a000 },
[GCC_MSS_VS_RESET] = { 0x7a100 },
[GCC_GPU_VS_RESET] = { 0x7a104 },
diff --git a/include/dt-bindings/clock/qcom,gcc-msm8998.h b/include/dt-bindings/clock/qcom,gcc-msm8998.h
index ab376262fcea..de1d8a1f5966 100644
--- a/include/dt-bindings/clock/qcom,gcc-msm8998.h
+++ b/include/dt-bindings/clock/qcom,gcc-msm8998.h
@@ -177,6 +177,11 @@
#define GCC_UFS_CLKREF_CLK 168
#define GCC_PCIE_CLKREF_CLK 169
#define GCC_RX1_USB2_CLKREF_CLK 170
+#define GCC_MSS_CFG_AHB_CLK 171
+#define GCC_BOOT_ROM_AHB_CLK 172
+#define GCC_MSS_GPLL0_DIV_CLK_SRC 173
+#define GCC_MSS_SNOC_AXI_CLK 174
+#define GCC_MSS_MNOC_BIMC_AXI_CLK 175
#define PCIE_0_GDSC 0
#define UFS_GDSC 1
@@ -290,5 +295,6 @@
#define GCC_MSMPU_BCR 105
#define GCC_QUSB2PHY_PRIM_BCR 106
#define GCC_QUSB2PHY_SEC_BCR 107
+#define GCC_MSS_RESTART 108
#endif
--
2.17.1
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