ipq806x: Add support for IPQ806x chip family

Patches are generated using the "format-patch" command from the
following location:
*https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base
*rev=0771849495b4128cac2faf7d49c85c729fc48b20
Patches numbered 76/77/102/103 have already been integrated in 3.14.12,
so they're not in this list.

All these patches are either integrated are pending integration into
kernel.org, therefore these patches should go away once the kernel
gets upgraded to 3.16.

Support is currently limited to AP148 board but can be extended to other
platforms in the future.

These changes do not cover ethernet connectivity.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42334 3c298f89-4303-0410-b956-a3cf2f4a3e73

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
+