diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0079-clk-qcom-Add-basic-support-for-APQ8064-global-clock-.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0079-clk-qcom-Add-basic-support-for-APQ8064-global-clock-.patch | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches/0079-clk-qcom-Add-basic-support-for-APQ8064-global-clock-.patch b/target/linux/ipq806x/patches/0079-clk-qcom-Add-basic-support-for-APQ8064-global-clock-.patch new file mode 100644 index 0000000000..d83d5d9696 --- /dev/null +++ b/target/linux/ipq806x/patches/0079-clk-qcom-Add-basic-support-for-APQ8064-global-clock-.patch @@ -0,0 +1,123 @@ +From 0f171b8a6e1723f0ce6f98f8b3fba7d2583088c1 Mon Sep 17 00:00:00 2001 +From: Kumar Gala <galak@codeaurora.org> +Date: Fri, 4 Apr 2014 11:31:29 -0500 +Subject: [PATCH 079/182] clk: qcom: Add basic support for APQ8064 global + clock controller clocks + +The APQ8064 and MSM8960 share a significant amount of clock data and +code between the two SoCs. Rather than duplicating the data we just add +support for a unqiue APQ8064 clock table into the MSM8960 code. + +For now add just enough clocks to get a basic serial port going on an +APQ8064 device. + +Signed-off-by: Kumar Gala <galak@codeaurora.org> +Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> +Signed-off-by: Mike Turquette <mturquette@linaro.org> +[mturquette@linaro.org: trivial conflict due to missing ipq8064 support] +--- + .../devicetree/bindings/clock/qcom,gcc.txt | 1 + + drivers/clk/qcom/Kconfig | 4 +-- + drivers/clk/qcom/gcc-msm8960.c | 30 ++++++++++++++++++-- + 3 files changed, 30 insertions(+), 5 deletions(-) + +diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt +index 767401f..7b7104e 100644 +--- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt ++++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt +@@ -4,6 +4,7 @@ Qualcomm Global Clock & Reset Controller Binding + Required properties : + - compatible : shall contain only one of the following: + ++ "qcom,gcc-apq8064" + "qcom,gcc-msm8660" + "qcom,gcc-msm8960" + "qcom,gcc-msm8974" +diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig +index 995bcfa..7f696b7 100644 +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -13,10 +13,10 @@ config MSM_GCC_8660 + i2c, USB, SD/eMMC, etc. + + config MSM_GCC_8960 +- tristate "MSM8960 Global Clock Controller" ++ tristate "APQ8064/MSM8960 Global Clock Controller" + depends on COMMON_CLK_QCOM + help +- Support for the global clock controller on msm8960 devices. ++ Support for the global clock controller on apq8064/msm8960 devices. + Say Y if you want to use peripheral devices such as UART, SPI, + i2c, USB, SD/eMMC, SATA, PCIe, etc. + +diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c +index 633b019..8e2b6dd 100644 +--- a/drivers/clk/qcom/gcc-msm8960.c ++++ b/drivers/clk/qcom/gcc-msm8960.c +@@ -1,5 +1,5 @@ + /* +- * Copyright (c) 2013, The Linux Foundation. All rights reserved. ++ * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and +@@ -2868,6 +2868,16 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = { + [RIVA_RESET] = { 0x35e0 }, + }; + ++static struct clk_regmap *gcc_apq8064_clks[] = { ++ [PLL8] = &pll8.clkr, ++ [PLL8_VOTE] = &pll8_vote, ++ [GSBI7_UART_SRC] = &gsbi7_uart_src.clkr, ++ [GSBI7_UART_CLK] = &gsbi7_uart_clk.clkr, ++ [GSBI7_QUP_SRC] = &gsbi7_qup_src.clkr, ++ [GSBI7_QUP_CLK] = &gsbi7_qup_clk.clkr, ++ [GSBI7_H_CLK] = &gsbi7_h_clk.clkr, ++}; ++ + static const struct regmap_config gcc_msm8960_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, +@@ -2884,8 +2894,17 @@ static const struct qcom_cc_desc gcc_msm8960_desc = { + .num_resets = ARRAY_SIZE(gcc_msm8960_resets), + }; + ++static const struct qcom_cc_desc gcc_apq8064_desc = { ++ .config = &gcc_msm8960_regmap_config, ++ .clks = gcc_apq8064_clks, ++ .num_clks = ARRAY_SIZE(gcc_apq8064_clks), ++ .resets = gcc_msm8960_resets, ++ .num_resets = ARRAY_SIZE(gcc_msm8960_resets), ++}; ++ + static const struct of_device_id gcc_msm8960_match_table[] = { +- { .compatible = "qcom,gcc-msm8960" }, ++ { .compatible = "qcom,gcc-msm8960", .data = &gcc_msm8960_desc }, ++ { .compatible = "qcom,gcc-apq8064", .data = &gcc_apq8064_desc }, + { } + }; + MODULE_DEVICE_TABLE(of, gcc_msm8960_match_table); +@@ -2894,6 +2913,11 @@ static int gcc_msm8960_probe(struct platform_device *pdev) + { + struct clk *clk; + struct device *dev = &pdev->dev; ++ const struct of_device_id *match; ++ ++ match = of_match_device(gcc_msm8960_match_table, &pdev->dev); ++ if (!match) ++ return -EINVAL; + + /* Temporary until RPM clocks supported */ + clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000); +@@ -2904,7 +2928,7 @@ static int gcc_msm8960_probe(struct platform_device *pdev) + if (IS_ERR(clk)) + return PTR_ERR(clk); + +- return qcom_cc_probe(pdev, &gcc_msm8960_desc); ++ return qcom_cc_probe(pdev, match->data); + } + + static int gcc_msm8960_remove(struct platform_device *pdev) +-- +1.7.10.4 + |