ipq806x: Add support for linux-4.4

1)Changes

- Rebased the patches for linux-4.4.7
- Added patch to fix spi nor fifo and dma support
- Added patch to configure watchdog barktime

2)Testing

Tested on IPQ AP148 Board:
 a. NOR boot and NAND boot
 b. ethernet network and ath10k wifi
 c. ubi sysupgrade

UnTested
 dwc3 usb has not been validated on IPQ board(AP148)

3)Known Issues:
 Once we flash ubi image on AP148, and if we reset the board, uboot on
 first boot creates PEB and LEB for dynamic sized partitions, which is incorrect
 and not what linux expects which causes errors when trying to mount rootfs.
 In order to test this, we can use the below steps:
  a. Flash the ubi image on board and don't reset the board
  b. load the kernel fit image in RAM and boot from there.

Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/139-clk-qcom-Add-IPQ806X-s-HFPLLs.patch b/target/linux/ipq806x/patches-4.4/139-clk-qcom-Add-IPQ806X-s-HFPLLs.patch
new file mode 100644
index 0000000000..5b191b5597
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/139-clk-qcom-Add-IPQ806X-s-HFPLLs.patch
@@ -0,0 +1,127 @@
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: [v3,08/13] clk: qcom: Add IPQ806X's HFPLLs
+From: Stephen Boyd <sboyd@codeaurora.org>
+X-Patchwork-Id: 6063241
+Message-Id: <1426920332-9340-9-git-send-email-sboyd@codeaurora.org>
+To: Mike Turquette <mturquette@linaro.org>, Stephen Boyd <sboyd@codeaurora.org>
+Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
+	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
+	Viresh Kumar <viresh.kumar@linaro.org>
+Date: Fri, 20 Mar 2015 23:45:27 -0700
+
+Describe the HFPLLs present on IPQ806X devices.
+
+Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
+
+---
+drivers/clk/qcom/gcc-ipq806x.c | 83 ++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 83 insertions(+)
+
+--- a/drivers/clk/qcom/gcc-ipq806x.c
++++ b/drivers/clk/qcom/gcc-ipq806x.c
+@@ -30,6 +30,7 @@
+ #include "clk-pll.h"
+ #include "clk-rcg.h"
+ #include "clk-branch.h"
++#include "clk-hfpll.h"
+ #include "reset.h"
+ 
+ static struct clk_pll pll0 = {
+@@ -113,6 +114,85 @@
+ 	},
+ };
+ 
++static struct hfpll_data hfpll0_data = {
++	.mode_reg = 0x3200,
++	.l_reg = 0x3208,
++	.m_reg = 0x320c,
++	.n_reg = 0x3210,
++	.config_reg = 0x3204,
++	.status_reg = 0x321c,
++	.config_val = 0x7845c665,
++	.droop_reg = 0x3214,
++	.droop_val = 0x0108c000,
++	.min_rate = 600000000UL,
++	.max_rate = 1800000000UL,
++};
++
++static struct clk_hfpll hfpll0 = {
++	.d = &hfpll0_data,
++	.clkr.hw.init = &(struct clk_init_data){
++		.parent_names = (const char *[]){ "pxo" },
++		.num_parents = 1,
++		.name = "hfpll0",
++		.ops = &clk_ops_hfpll,
++		.flags = CLK_IGNORE_UNUSED,
++	},
++	.lock = __SPIN_LOCK_UNLOCKED(hfpll0.lock),
++};
++
++static struct hfpll_data hfpll1_data = {
++	.mode_reg = 0x3240,
++	.l_reg = 0x3248,
++	.m_reg = 0x324c,
++	.n_reg = 0x3250,
++	.config_reg = 0x3244,
++	.status_reg = 0x325c,
++	.config_val = 0x7845c665,
++	.droop_reg = 0x3314,
++	.droop_val = 0x0108c000,
++	.min_rate = 600000000UL,
++	.max_rate = 1800000000UL,
++};
++
++static struct clk_hfpll hfpll1 = {
++	.d = &hfpll1_data,
++	.clkr.hw.init = &(struct clk_init_data){
++		.parent_names = (const char *[]){ "pxo" },
++		.num_parents = 1,
++		.name = "hfpll1",
++		.ops = &clk_ops_hfpll,
++		.flags = CLK_IGNORE_UNUSED,
++	},
++	.lock = __SPIN_LOCK_UNLOCKED(hfpll1.lock),
++};
++
++static struct hfpll_data hfpll_l2_data = {
++	.mode_reg = 0x3300,
++	.l_reg = 0x3308,
++	.m_reg = 0x330c,
++	.n_reg = 0x3310,
++	.config_reg = 0x3304,
++	.status_reg = 0x331c,
++	.config_val = 0x7845c665,
++	.droop_reg = 0x3314,
++	.droop_val = 0x0108c000,
++	.min_rate = 600000000UL,
++	.max_rate = 1800000000UL,
++};
++
++static struct clk_hfpll hfpll_l2 = {
++		.d = &hfpll_l2_data,
++		.clkr.hw.init = &(struct clk_init_data){
++		.parent_names = (const char *[]){ "pxo" },
++		.num_parents = 1,
++		.name = "hfpll_l2",
++		.ops = &clk_ops_hfpll,
++		.flags = CLK_IGNORE_UNUSED,
++	},
++	.lock = __SPIN_LOCK_UNLOCKED(hfpll_l2.lock),
++};
++
++
+ static struct clk_pll pll14 = {
+ 	.l_reg = 0x31c4,
+ 	.m_reg = 0x31c8,
+@@ -2837,6 +2917,9 @@
+ 	[UBI32_CORE2_CLK_SRC] = &ubi32_core2_src_clk.clkr,
+ 	[NSSTCM_CLK_SRC] = &nss_tcm_src.clkr,
+ 	[NSSTCM_CLK] = &nss_tcm_clk.clkr,
++	[PLL9] = &hfpll0.clkr,
++	[PLL10] = &hfpll1.clkr,
++	[PLL12] = &hfpll_l2.clkr,
+ };
+ 
+ static const struct qcom_reset_map gcc_ipq806x_resets[] = {