bcm53xx: add clk tree driver

These patches are written by Broadcom and will be in mainline Linux
kernel soon. I had some problems to get them backported to kernel 4.1,
so currently they are only available for 4.3.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 47253

10 files changed, 1545 insertions, 1 deletions

diff --git a/target/linux/bcm53xx/config-4.3 b/target/linux/bcm53xx/config-4.3
index 73c8062fa9..16705a157e 100644
--- a/target/linux/bcm53xx/config-4.3
+++ b/target/linux/bcm53xx/config-4.3
@@ -80,6 +80,7 @@ CONFIG_CLKSRC_MMIO=y
 CONFIG_CLKSRC_OF=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_IPROC=y
 CONFIG_CPU_32v6K=y
 CONFIG_CPU_32v7=y
 CONFIG_CPU_ABRT_EV7=y
diff --git a/target/linux/bcm53xx/patches-4.3/043-clk-iproc-Fix-PLL-output-frequency-calculation.patch b/target/linux/bcm53xx/patches-4.3/043-clk-iproc-Fix-PLL-output-frequency-calculation.patch
new file mode 100644
index 0000000000..20dd90e31c
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/043-clk-iproc-Fix-PLL-output-frequency-calculation.patch
@@ -0,0 +1,59 @@
+From 63243a4da7d0dfa19dcacd0a529782eeb2f86f92 Mon Sep 17 00:00:00 2001
+From: Simran Rai <ssimran@broadcom.com>
+Date: Mon, 19 Oct 2015 15:27:19 -0700
+Subject: [PATCH] clk: iproc: Fix PLL output frequency calculation
+
+This patch affects the clocks that use fractional ndivider in their
+PLL output frequency calculation. Instead of 2^20 divide factor, the
+clock's ndiv integer shift was used. Fixed the bug by replacing ndiv
+integer shift with 2^20 factor.
+
+Signed-off-by: Simran Rai <ssimran@broadcom.com>
+Signed-off-by: Ray Jui <rjui@broadcom.com>
+Reviewed-by: Scott Branden <sbranden@broadcom.com>
+Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support")
+Cc: <stable@vger.kernel.org> # v4.1+
+Signed-off-by: Michael Turquette <mturquette@baylibre.com>
+---
+ drivers/clk/bcm/clk-iproc-pll.c | 13 +++++--------
+ 1 file changed, 5 insertions(+), 8 deletions(-)
+
+--- a/drivers/clk/bcm/clk-iproc-pll.c
++++ b/drivers/clk/bcm/clk-iproc-pll.c
+@@ -345,8 +345,8 @@ static unsigned long iproc_pll_recalc_ra
+ 	struct iproc_pll *pll = clk->pll;
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+ 	u32 val;
+-	u64 ndiv;
+-	unsigned int ndiv_int, ndiv_frac, pdiv;
++	u64 ndiv, ndiv_int, ndiv_frac;
++	unsigned int pdiv;
+ 
+ 	if (parent_rate == 0)
+ 		return 0;
+@@ -366,22 +366,19 @@ static unsigned long iproc_pll_recalc_ra
+ 	val = readl(pll->pll_base + ctrl->ndiv_int.offset);
+ 	ndiv_int = (val >> ctrl->ndiv_int.shift) &
+ 		bit_mask(ctrl->ndiv_int.width);
+-	ndiv = (u64)ndiv_int << ctrl->ndiv_int.shift;
++	ndiv = ndiv_int << 20;
+ 
+ 	if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
+ 		val = readl(pll->pll_base + ctrl->ndiv_frac.offset);
+ 		ndiv_frac = (val >> ctrl->ndiv_frac.shift) &
+ 			bit_mask(ctrl->ndiv_frac.width);
+-
+-		if (ndiv_frac != 0)
+-			ndiv = ((u64)ndiv_int << ctrl->ndiv_int.shift) |
+-				ndiv_frac;
++		ndiv += ndiv_frac;
+ 	}
+ 
+ 	val = readl(pll->pll_base + ctrl->pdiv.offset);
+ 	pdiv = (val >> ctrl->pdiv.shift) & bit_mask(ctrl->pdiv.width);
+ 
+-	clk->rate = (ndiv * parent_rate) >> ctrl->ndiv_int.shift;
++	clk->rate = (ndiv * parent_rate) >> 20;
+ 
+ 	if (pdiv == 0)
+ 		clk->rate *= 2;
diff --git a/target/linux/bcm53xx/patches-4.3/044-clk-cygnus-Convert-all-macros-to-all-caps.patch b/target/linux/bcm53xx/patches-4.3/044-clk-cygnus-Convert-all-macros-to-all-caps.patch
new file mode 100644
index 0000000000..f65aa9cf0b
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/044-clk-cygnus-Convert-all-macros-to-all-caps.patch
@@ -0,0 +1,292 @@
+From b5116083e227fa478e20d5ed945430088aa1a00b Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:25 -0400
+Subject: [PATCH 44/50] clk: cygnus: Convert all macros to all caps
+
+The macros that are being used to initialize the values of the clk
+structures should be all caps.  Find and replace all of them with their
+relevant counterparts.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/clk-cygnus.c | 146 +++++++++++++++++++++----------------------
+ 1 file changed, 73 insertions(+), 73 deletions(-)
+
+--- a/drivers/clk/bcm/clk-cygnus.c
++++ b/drivers/clk/bcm/clk-cygnus.c
+@@ -23,28 +23,28 @@
+ #include <dt-bindings/clock/bcm-cygnus.h>
+ #include "clk-iproc.h"
+ 
+-#define reg_val(o, s, w) { .offset = o, .shift = s, .width = w, }
++#define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, }
+ 
+-#define aon_val(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
++#define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
+ 	.pwr_shift = ps, .iso_shift = is }
+ 
+-#define sw_ctrl_val(o, s) { .offset = o, .shift = s, }
++#define SW_CTRL_VAL(o, s) { .offset = o, .shift = s, }
+ 
+-#define asiu_div_val(o, es, hs, hw, ls, lw) \
++#define ASIU_DIV_VAL(o, es, hs, hw, ls, lw) \
+ 		{ .offset = o, .en_shift = es, .high_shift = hs, \
+ 		.high_width = hw, .low_shift = ls, .low_width = lw }
+ 
+-#define reset_val(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \
++#define RESET_VAL(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \
+ 	.reset_shift = rs, .p_reset_shift = prs, .ki_shift = kis, \
+ 	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
+ 	.ka_width = kaw }
+ 
+-#define vco_ctrl_val(uo, lo) { .u_offset = uo, .l_offset = lo }
++#define VCO_CTRL_VAL(uo, lo) { .u_offset = uo, .l_offset = lo }
+ 
+-#define enable_val(o, es, hs, bs) { .offset = o, .enable_shift = es, \
++#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
+ 	.hold_shift = hs, .bypass_shift = bs }
+ 
+-#define asiu_gate_val(o, es) { .offset = o, .en_shift = es }
++#define ASIU_GATE_VAL(o, es) { .offset = o, .en_shift = es }
+ 
+ static void __init cygnus_armpll_init(struct device_node *node)
+ {
+@@ -55,52 +55,52 @@ CLK_OF_DECLARE(cygnus_armpll, "brcm,cygn
+ static const struct iproc_pll_ctrl genpll = {
+ 	.flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC |
+ 		IPROC_CLK_PLL_NEEDS_SW_CFG,
+-	.aon = aon_val(0x0, 2, 1, 0),
+-	.reset = reset_val(0x0, 11, 10, 4, 3, 0, 4, 7, 3),
+-	.sw_ctrl = sw_ctrl_val(0x10, 31),
+-	.ndiv_int = reg_val(0x10, 20, 10),
+-	.ndiv_frac = reg_val(0x10, 0, 20),
+-	.pdiv = reg_val(0x14, 0, 4),
+-	.vco_ctrl = vco_ctrl_val(0x18, 0x1c),
+-	.status = reg_val(0x28, 12, 1),
++	.aon = AON_VAL(0x0, 2, 1, 0),
++	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 3),
++	.sw_ctrl = SW_CTRL_VAL(0x10, 31),
++	.ndiv_int = REG_VAL(0x10, 20, 10),
++	.ndiv_frac = REG_VAL(0x10, 0, 20),
++	.pdiv = REG_VAL(0x14, 0, 4),
++	.vco_ctrl = VCO_CTRL_VAL(0x18, 0x1c),
++	.status = REG_VAL(0x28, 12, 1),
+ };
+ 
+ static const struct iproc_clk_ctrl genpll_clk[] = {
+ 	[BCM_CYGNUS_GENPLL_AXI21_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_AXI21_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 6, 0, 12),
+-		.mdiv = reg_val(0x20, 0, 8),
++		.enable = ENABLE_VAL(0x4, 6, 0, 12),
++		.mdiv = REG_VAL(0x20, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_GENPLL_250MHZ_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_250MHZ_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 7, 1, 13),
+-		.mdiv = reg_val(0x20, 10, 8),
++		.enable = ENABLE_VAL(0x4, 7, 1, 13),
++		.mdiv = REG_VAL(0x20, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_GENPLL_IHOST_SYS_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_IHOST_SYS_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 8, 2, 14),
+-		.mdiv = reg_val(0x20, 20, 8),
++		.enable = ENABLE_VAL(0x4, 8, 2, 14),
++		.mdiv = REG_VAL(0x20, 20, 8),
+ 	},
+ 	[BCM_CYGNUS_GENPLL_ENET_SW_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_ENET_SW_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 9, 3, 15),
+-		.mdiv = reg_val(0x24, 0, 8),
++		.enable = ENABLE_VAL(0x4, 9, 3, 15),
++		.mdiv = REG_VAL(0x24, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_GENPLL_AUDIO_125_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_AUDIO_125_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 10, 4, 16),
+-		.mdiv = reg_val(0x24, 10, 8),
++		.enable = ENABLE_VAL(0x4, 10, 4, 16),
++		.mdiv = REG_VAL(0x24, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_GENPLL_CAN_CLK] = {
+ 		.channel = BCM_CYGNUS_GENPLL_CAN_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x4, 11, 5, 17),
+-		.mdiv = reg_val(0x24, 20, 8),
++		.enable = ENABLE_VAL(0x4, 11, 5, 17),
++		.mdiv = REG_VAL(0x24, 20, 8),
+ 	},
+ };
+ 
+@@ -113,51 +113,51 @@ CLK_OF_DECLARE(cygnus_genpll, "brcm,cygn
+ 
+ static const struct iproc_pll_ctrl lcpll0 = {
+ 	.flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG,
+-	.aon = aon_val(0x0, 2, 5, 4),
+-	.reset = reset_val(0x0, 31, 30, 27, 3, 23, 4, 19, 4),
+-	.sw_ctrl = sw_ctrl_val(0x4, 31),
+-	.ndiv_int = reg_val(0x4, 16, 10),
+-	.pdiv = reg_val(0x4, 26, 4),
+-	.vco_ctrl = vco_ctrl_val(0x10, 0x14),
+-	.status = reg_val(0x18, 12, 1),
++	.aon = AON_VAL(0x0, 2, 5, 4),
++	.reset = RESET_VAL(0x0, 31, 30, 27, 3, 23, 4, 19, 4),
++	.sw_ctrl = SW_CTRL_VAL(0x4, 31),
++	.ndiv_int = REG_VAL(0x4, 16, 10),
++	.pdiv = REG_VAL(0x4, 26, 4),
++	.vco_ctrl = VCO_CTRL_VAL(0x10, 0x14),
++	.status = REG_VAL(0x18, 12, 1),
+ };
+ 
+ static const struct iproc_clk_ctrl lcpll0_clk[] = {
+ 	[BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_PCIE_PHY_REF_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 7, 1, 13),
+-		.mdiv = reg_val(0x8, 0, 8),
++		.enable = ENABLE_VAL(0x0, 7, 1, 13),
++		.mdiv = REG_VAL(0x8, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_LCPLL0_DDR_PHY_CLK] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_DDR_PHY_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 8, 2, 14),
+-		.mdiv = reg_val(0x8, 10, 8),
++		.enable = ENABLE_VAL(0x0, 8, 2, 14),
++		.mdiv = REG_VAL(0x8, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_LCPLL0_SDIO_CLK] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_SDIO_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 9, 3, 15),
+-		.mdiv = reg_val(0x8, 20, 8),
++		.enable = ENABLE_VAL(0x0, 9, 3, 15),
++		.mdiv = REG_VAL(0x8, 20, 8),
+ 	},
+ 	[BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_USB_PHY_REF_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 10, 4, 16),
+-		.mdiv = reg_val(0xc, 0, 8),
++		.enable = ENABLE_VAL(0x0, 10, 4, 16),
++		.mdiv = REG_VAL(0xc, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_LCPLL0_SMART_CARD_CLK] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_SMART_CARD_CLK,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 11, 5, 17),
+-		.mdiv = reg_val(0xc, 10, 8),
++		.enable = ENABLE_VAL(0x0, 11, 5, 17),
++		.mdiv = REG_VAL(0xc, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_LCPLL0_CH5_UNUSED] = {
+ 		.channel = BCM_CYGNUS_LCPLL0_CH5_UNUSED,
+ 		.flags = IPROC_CLK_AON,
+-		.enable = enable_val(0x0, 12, 6, 18),
+-		.mdiv = reg_val(0xc, 20, 8),
++		.enable = ENABLE_VAL(0x0, 12, 6, 18),
++		.mdiv = REG_VAL(0xc, 20, 8),
+ 	},
+ };
+ 
+@@ -189,52 +189,52 @@ static const struct iproc_pll_vco_param
+ static const struct iproc_pll_ctrl mipipll = {
+ 	.flags = IPROC_CLK_PLL_ASIU | IPROC_CLK_PLL_HAS_NDIV_FRAC |
+ 		 IPROC_CLK_NEEDS_READ_BACK,
+-	.aon = aon_val(0x0, 4, 17, 16),
+-	.asiu = asiu_gate_val(0x0, 3),
+-	.reset = reset_val(0x0, 11, 10, 4, 3, 0, 4, 7, 4),
+-	.ndiv_int = reg_val(0x10, 20, 10),
+-	.ndiv_frac = reg_val(0x10, 0, 20),
+-	.pdiv = reg_val(0x14, 0, 4),
+-	.vco_ctrl = vco_ctrl_val(0x18, 0x1c),
+-	.status = reg_val(0x28, 12, 1),
++	.aon = AON_VAL(0x0, 4, 17, 16),
++	.asiu = ASIU_GATE_VAL(0x0, 3),
++	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 4),
++	.ndiv_int = REG_VAL(0x10, 20, 10),
++	.ndiv_frac = REG_VAL(0x10, 0, 20),
++	.pdiv = REG_VAL(0x14, 0, 4),
++	.vco_ctrl = VCO_CTRL_VAL(0x18, 0x1c),
++	.status = REG_VAL(0x28, 12, 1),
+ };
+ 
+ static const struct iproc_clk_ctrl mipipll_clk[] = {
+ 	[BCM_CYGNUS_MIPIPLL_CH0_UNUSED] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH0_UNUSED,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 12, 6, 18),
+-		.mdiv = reg_val(0x20, 0, 8),
++		.enable = ENABLE_VAL(0x4, 12, 6, 18),
++		.mdiv = REG_VAL(0x20, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_MIPIPLL_CH1_LCD] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH1_LCD,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 13, 7, 19),
+-		.mdiv = reg_val(0x20, 10, 8),
++		.enable = ENABLE_VAL(0x4, 13, 7, 19),
++		.mdiv = REG_VAL(0x20, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_MIPIPLL_CH2_V3D] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH2_V3D,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 14, 8, 20),
+-		.mdiv = reg_val(0x20, 20, 8),
++		.enable = ENABLE_VAL(0x4, 14, 8, 20),
++		.mdiv = REG_VAL(0x20, 20, 8),
+ 	},
+ 	[BCM_CYGNUS_MIPIPLL_CH3_UNUSED] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH3_UNUSED,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 15, 9, 21),
+-		.mdiv = reg_val(0x24, 0, 8),
++		.enable = ENABLE_VAL(0x4, 15, 9, 21),
++		.mdiv = REG_VAL(0x24, 0, 8),
+ 	},
+ 	[BCM_CYGNUS_MIPIPLL_CH4_UNUSED] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH4_UNUSED,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 16, 10, 22),
+-		.mdiv = reg_val(0x24, 10, 8),
++		.enable = ENABLE_VAL(0x4, 16, 10, 22),
++		.mdiv = REG_VAL(0x24, 10, 8),
+ 	},
+ 	[BCM_CYGNUS_MIPIPLL_CH5_UNUSED] = {
+ 		.channel = BCM_CYGNUS_MIPIPLL_CH5_UNUSED,
+ 		.flags = IPROC_CLK_NEEDS_READ_BACK,
+-		.enable = enable_val(0x4, 17, 11, 23),
+-		.mdiv = reg_val(0x24, 20, 8),
++		.enable = ENABLE_VAL(0x4, 17, 11, 23),
++		.mdiv = REG_VAL(0x24, 20, 8),
+ 	},
+ };
+ 
+@@ -247,15 +247,15 @@ static void __init cygnus_mipipll_clk_in
+ CLK_OF_DECLARE(cygnus_mipipll, "brcm,cygnus-mipipll", cygnus_mipipll_clk_init);
+ 
+ static const struct iproc_asiu_div asiu_div[] = {
+-	[BCM_CYGNUS_ASIU_KEYPAD_CLK] = asiu_div_val(0x0, 31, 16, 10, 0, 10),
+-	[BCM_CYGNUS_ASIU_ADC_CLK] = asiu_div_val(0x4, 31, 16, 10, 0, 10),
+-	[BCM_CYGNUS_ASIU_PWM_CLK] = asiu_div_val(0x8, 31, 16, 10, 0, 10),
++	[BCM_CYGNUS_ASIU_KEYPAD_CLK] = ASIU_DIV_VAL(0x0, 31, 16, 10, 0, 10),
++	[BCM_CYGNUS_ASIU_ADC_CLK] = ASIU_DIV_VAL(0x4, 31, 16, 10, 0, 10),
++	[BCM_CYGNUS_ASIU_PWM_CLK] = ASIU_DIV_VAL(0x8, 31, 16, 10, 0, 10),
+ };
+ 
+ static const struct iproc_asiu_gate asiu_gate[] = {
+-	[BCM_CYGNUS_ASIU_KEYPAD_CLK] = asiu_gate_val(0x0, 7),
+-	[BCM_CYGNUS_ASIU_ADC_CLK] = asiu_gate_val(0x0, 9),
+-	[BCM_CYGNUS_ASIU_PWM_CLK] = asiu_gate_val(IPROC_CLK_INVALID_OFFSET, 0),
++	[BCM_CYGNUS_ASIU_KEYPAD_CLK] = ASIU_GATE_VAL(0x0, 7),
++	[BCM_CYGNUS_ASIU_ADC_CLK] = ASIU_GATE_VAL(0x0, 9),
++	[BCM_CYGNUS_ASIU_PWM_CLK] = ASIU_GATE_VAL(IPROC_CLK_INVALID_OFFSET, 0),
+ };
+ 
+ static void __init cygnus_asiu_init(struct device_node *node)
diff --git a/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch b/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch
new file mode 100644
index 0000000000..318bd5ca4e
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/045-clk-iproc-Add-PWRCTRL-support.patch
@@ -0,0 +1,120 @@
+From 7c70cb333deb6e2f88da9c94ddd6b3b00c97b93a Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:26 -0400
+Subject: [PATCH 45/50] clk: iproc: Add PWRCTRL support
+
+Some iProc SoC clocks use a different way to control clock power, via
+the PWRDWN bit in the PLL control register.  Since the PLL control
+register is used to access the PWRDWN bit, there is no need for the
+pwr_base when this is being used.  A new flag, IPROC_CLK_EMBED_PWRCTRL,
+has been added to identify this usage.  We can use the AON interface to
+write the values to enable/disable PWRDOWN.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/clk-iproc-pll.c | 55 ++++++++++++++++++++++++++++-------------
+ drivers/clk/bcm/clk-iproc.h     |  6 +++++
+ 2 files changed, 44 insertions(+), 17 deletions(-)
+
+--- a/drivers/clk/bcm/clk-iproc-pll.c
++++ b/drivers/clk/bcm/clk-iproc-pll.c
+@@ -148,14 +148,25 @@ static void __pll_disable(struct iproc_p
+ 		writel(val, pll->asiu_base + ctrl->asiu.offset);
+ 	}
+ 
+-	/* latch input value so core power can be shut down */
+-	val = readl(pll->pwr_base + ctrl->aon.offset);
+-	val |= (1 << ctrl->aon.iso_shift);
+-	writel(val, pll->pwr_base + ctrl->aon.offset);
+-
+-	/* power down the core */
+-	val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-	writel(val, pll->pwr_base + ctrl->aon.offset);
++	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
++		val = readl(pll->pll_base + ctrl->aon.offset);
++		val |= (bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
++		writel(val, pll->pll_base + ctrl->aon.offset);
++
++		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
++			readl(pll->pll_base + ctrl->aon.offset);
++	}
++
++	if (pll->pwr_base) {
++		/* latch input value so core power can be shut down */
++		val = readl(pll->pwr_base + ctrl->aon.offset);
++		val |= (1 << ctrl->aon.iso_shift);
++		writel(val, pll->pwr_base + ctrl->aon.offset);
++
++		/* power down the core */
++		val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
++		writel(val, pll->pwr_base + ctrl->aon.offset);
++	}
+ }
+ 
+ static int __pll_enable(struct iproc_pll *pll)
+@@ -163,11 +174,22 @@ static int __pll_enable(struct iproc_pll
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+ 	u32 val;
+ 
+-	/* power up the PLL and make sure it's not latched */
+-	val = readl(pll->pwr_base + ctrl->aon.offset);
+-	val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
+-	val &= ~(1 << ctrl->aon.iso_shift);
+-	writel(val, pll->pwr_base + ctrl->aon.offset);
++	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
++		val = readl(pll->pll_base + ctrl->aon.offset);
++		val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
++		writel(val, pll->pll_base + ctrl->aon.offset);
++
++		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
++			readl(pll->pll_base + ctrl->aon.offset);
++	}
++
++	if (pll->pwr_base) {
++		/* power up the PLL and make sure it's not latched */
++		val = readl(pll->pwr_base + ctrl->aon.offset);
++		val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
++		val &= ~(1 << ctrl->aon.iso_shift);
++		writel(val, pll->pwr_base + ctrl->aon.offset);
++	}
+ 
+ 	/* certain PLLs also need to be ungated from the ASIU top level */
+ 	if (ctrl->flags & IPROC_CLK_PLL_ASIU) {
+@@ -607,9 +629,8 @@ void __init iproc_pll_clk_setup(struct d
+ 	if (WARN_ON(!pll->pll_base))
+ 		goto err_pll_iomap;
+ 
++	/* Some SoCs do not require the pwr_base, thus failing is not fatal */
+ 	pll->pwr_base = of_iomap(node, 1);
+-	if (WARN_ON(!pll->pwr_base))
+-		goto err_pwr_iomap;
+ 
+ 	/* some PLLs require gating control at the top ASIU level */
+ 	if (pll_ctrl->flags & IPROC_CLK_PLL_ASIU) {
+@@ -692,9 +713,9 @@ err_pll_register:
+ 		iounmap(pll->asiu_base);
+ 
+ err_asiu_iomap:
+-	iounmap(pll->pwr_base);
++	if (pll->pwr_base)
++		iounmap(pll->pwr_base);
+ 
+-err_pwr_iomap:
+ 	iounmap(pll->pll_base);
+ 
+ err_pll_iomap:
+--- a/drivers/clk/bcm/clk-iproc.h
++++ b/drivers/clk/bcm/clk-iproc.h
+@@ -49,6 +49,12 @@
+ #define IPROC_CLK_PLL_NEEDS_SW_CFG BIT(4)
+ 
+ /*
++ * Some PLLs use a different way to control clock power, via the PWRDWN bit in
++ * the PLL control register
++ */
++#define IPROC_CLK_EMBED_PWRCTRL BIT(5)
++
++/*
+  * Parameters for VCO frequency configuration
+  *
+  * VCO frequency =
diff --git a/target/linux/bcm53xx/patches-4.3/046-clk-nsp-add-clock-support-for-Broadcom-Northstar-Plu.patch b/target/linux/bcm53xx/patches-4.3/046-clk-nsp-add-clock-support-for-Broadcom-Northstar-Plu.patch
new file mode 100644
index 0000000000..c8eda8d102
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/046-clk-nsp-add-clock-support-for-Broadcom-Northstar-Plu.patch
@@ -0,0 +1,219 @@
+From d358480591b34d081806ecb5a9474930a4d59f8a Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:27 -0400
+Subject: [PATCH 46/50] clk: nsp: add clock support for Broadcom Northstar Plus
+ SoC
+
+The Broadcom Northstar Plus SoC is architected under the iProc
+architecture. It has the following PLLs: ARMPLL, GENPLL, LCPLL0, all
+derived from an onboard crystal.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/Makefile            |   2 +
+ drivers/clk/bcm/clk-nsp.c           | 135 ++++++++++++++++++++++++++++++++++++
+ include/dt-bindings/clock/bcm-nsp.h |  51 ++++++++++++++
+ 3 files changed, 188 insertions(+)
+ create mode 100644 drivers/clk/bcm/clk-nsp.c
+ create mode 100644 include/dt-bindings/clock/bcm-nsp.h
+
+--- a/drivers/clk/bcm/Makefile
++++ b/drivers/clk/bcm/Makefile
+@@ -4,3 +4,5 @@ obj-$(CONFIG_CLK_BCM_KONA)	+= clk-bcm281
+ obj-$(CONFIG_CLK_BCM_KONA)	+= clk-bcm21664.o
+ obj-$(CONFIG_COMMON_CLK_IPROC)	+= clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o
+ obj-$(CONFIG_ARCH_BCM_CYGNUS)	+= clk-cygnus.o
++obj-$(CONFIG_ARCH_BCM_NSP)	+= clk-nsp.o
++obj-$(CONFIG_ARCH_BCM_5301X)	+= clk-nsp.o
+--- /dev/null
++++ b/drivers/clk/bcm/clk-nsp.c
+@@ -0,0 +1,135 @@
++/*
++ * Copyright (C) 2015 Broadcom Corporation
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License as
++ * published by the Free Software Foundation version 2.
++ *
++ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
++ * kind, whether express or implied; without even the implied warranty
++ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++
++#include <linux/kernel.h>
++#include <linux/err.h>
++#include <linux/clk-provider.h>
++#include <linux/io.h>
++#include <linux/of.h>
++#include <linux/of_address.h>
++
++#include <dt-bindings/clock/bcm-nsp.h>
++#include "clk-iproc.h"
++
++#define REG_VAL(o, s, w) { .offset = o, .shift = s, .width = w, }
++
++#define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
++	.pwr_shift = ps, .iso_shift = is }
++
++#define RESET_VAL(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \
++	.reset_shift = rs, .p_reset_shift = prs, .ki_shift = kis, \
++	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
++	.ka_width = kaw }
++
++#define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
++	.hold_shift = hs, .bypass_shift = bs }
++
++static void __init nsp_armpll_init(struct device_node *node)
++{
++	iproc_armpll_setup(node);
++}
++CLK_OF_DECLARE(nsp_armpll, "brcm,nsp-armpll", nsp_armpll_init);
++
++static const struct iproc_pll_ctrl genpll = {
++	.flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
++	.aon = AON_VAL(0x0, 1, 12, 0),
++	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 3),
++	.ndiv_int = REG_VAL(0x14, 20, 10),
++	.ndiv_frac = REG_VAL(0x14, 0, 20),
++	.pdiv = REG_VAL(0x18, 24, 3),
++	.status = REG_VAL(0x20, 12, 1),
++};
++
++static const struct iproc_clk_ctrl genpll_clk[] = {
++	[BCM_NSP_GENPLL_PHY_CLK] = {
++		.channel = BCM_NSP_GENPLL_PHY_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 12, 6, 18),
++		.mdiv = REG_VAL(0x18, 16, 8),
++	},
++	[BCM_NSP_GENPLL_ENET_SW_CLK] = {
++		.channel = BCM_NSP_GENPLL_ENET_SW_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 13, 7, 19),
++		.mdiv = REG_VAL(0x18, 8, 8),
++	},
++	[BCM_NSP_GENPLL_USB_PHY_REF_CLK] = {
++		.channel = BCM_NSP_GENPLL_USB_PHY_REF_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 14, 8, 20),
++		.mdiv = REG_VAL(0x18, 0, 8),
++	},
++	[BCM_NSP_GENPLL_IPROCFAST_CLK] = {
++		.channel = BCM_NSP_GENPLL_IPROCFAST_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 15, 9, 21),
++		.mdiv = REG_VAL(0x1c, 16, 8),
++	},
++	[BCM_NSP_GENPLL_SATA1_CLK] = {
++		.channel = BCM_NSP_GENPLL_SATA1_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 16, 10, 22),
++		.mdiv = REG_VAL(0x1c, 8, 8),
++	},
++	[BCM_NSP_GENPLL_SATA2_CLK] = {
++		.channel = BCM_NSP_GENPLL_SATA2_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x4, 17, 11, 23),
++		.mdiv = REG_VAL(0x1c, 0, 8),
++	},
++};
++
++static void __init nsp_genpll_clk_init(struct device_node *node)
++{
++	iproc_pll_clk_setup(node, &genpll, NULL, 0, genpll_clk,
++			    ARRAY_SIZE(genpll_clk));
++}
++CLK_OF_DECLARE(nsp_genpll_clk, "brcm,nsp-genpll", nsp_genpll_clk_init);
++
++static const struct iproc_pll_ctrl lcpll0 = {
++	.flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
++	.aon = AON_VAL(0x0, 1, 24, 0),
++	.reset = RESET_VAL(0x0, 23, 22, 16, 3, 12, 4, 19, 4),
++	.ndiv_int = REG_VAL(0x4, 20, 8),
++	.ndiv_frac = REG_VAL(0x4, 0, 20),
++	.pdiv = REG_VAL(0x4, 28, 3),
++	.status = REG_VAL(0x10, 12, 1),
++};
++
++static const struct iproc_clk_ctrl lcpll0_clk[] = {
++	[BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK] = {
++		.channel = BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x0, 6, 3, 9),
++		.mdiv = REG_VAL(0x8, 24, 8),
++	},
++	[BCM_NSP_LCPLL0_SDIO_CLK] = {
++		.channel = BCM_NSP_LCPLL0_SDIO_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x0, 7, 4, 10),
++		.mdiv = REG_VAL(0x8, 16, 8),
++	},
++	[BCM_NSP_LCPLL0_DDR_PHY_CLK] = {
++		.channel = BCM_NSP_LCPLL0_DDR_PHY_CLK,
++		.flags = IPROC_CLK_AON,
++		.enable = ENABLE_VAL(0x0, 8, 5, 11),
++		.mdiv = REG_VAL(0x8, 8, 8),
++	},
++};
++
++static void __init nsp_lcpll0_clk_init(struct device_node *node)
++{
++	iproc_pll_clk_setup(node, &lcpll0, NULL, 0, lcpll0_clk,
++			    ARRAY_SIZE(lcpll0_clk));
++}
++CLK_OF_DECLARE(nsp_lcpll0_clk, "brcm,nsp-lcpll0", nsp_lcpll0_clk_init);
+--- /dev/null
++++ b/include/dt-bindings/clock/bcm-nsp.h
+@@ -0,0 +1,51 @@
++/*
++ *  BSD LICENSE
++ *
++ *  Copyright(c) 2015 Broadcom Corporation.  All rights reserved.
++ *
++ *  Redistribution and use in source and binary forms, with or without
++ *  modification, are permitted provided that the following conditions
++ *  are met:
++ *
++ *	* Redistributions of source code must retain the above copyright
++ *	  notice, this list of conditions and the following disclaimer.
++ *	* Redistributions in binary form must reproduce the above copyright
++ *	  notice, this list of conditions and the following disclaimer in
++ *	  the documentation and/or other materials provided with the
++ *	  distribution.
++ *	* Neither the name of Broadcom Corporation nor the names of its
++ *	  contributors may be used to endorse or promote products derived
++ *	  from this software without specific prior written permission.
++ *
++ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
++ *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
++ *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
++ *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
++ *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
++ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
++ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#ifndef _CLOCK_BCM_NSP_H
++#define _CLOCK_BCM_NSP_H
++
++/* GENPLL clock channel ID */
++#define BCM_NSP_GENPLL			0
++#define BCM_NSP_GENPLL_PHY_CLK		1
++#define BCM_NSP_GENPLL_ENET_SW_CLK	2
++#define BCM_NSP_GENPLL_USB_PHY_REF_CLK	3
++#define BCM_NSP_GENPLL_IPROCFAST_CLK	4
++#define BCM_NSP_GENPLL_SATA1_CLK	5
++#define BCM_NSP_GENPLL_SATA2_CLK	6
++
++/* LCPLL0 clock channel ID */
++#define BCM_NSP_LCPLL0			0
++#define BCM_NSP_LCPLL0_PCIE_PHY_REF_CLK	1
++#define BCM_NSP_LCPLL0_SDIO_CLK		2
++#define BCM_NSP_LCPLL0_DDR_PHY_CLK	3
++
++#endif /* _CLOCK_BCM_NSP_H */
diff --git a/target/linux/bcm53xx/patches-4.3/047-clk-iproc-Add-PLL-base-write-function.patch b/target/linux/bcm53xx/patches-4.3/047-clk-iproc-Add-PLL-base-write-function.patch
new file mode 100644
index 0000000000..2f07cc6656
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/047-clk-iproc-Add-PLL-base-write-function.patch
@@ -0,0 +1,223 @@
+From acbb7a3de7e4d83b23c0bbb3eaf77d15a041d865 Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:28 -0400
+Subject: [PATCH 47/50] clk: iproc: Add PLL base write function
+
+All writes to the PLL base address must be flushed if the
+IPROC_CLK_NEEDS_READ_BACK flag is set.  If we add a function to make the
+necessary write and reads, we can make sure that any future code which
+makes PLL base writes will do the correct thing.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/clk-iproc-pll.c | 80 +++++++++++++++++------------------------
+ 1 file changed, 33 insertions(+), 47 deletions(-)
+
+--- a/drivers/clk/bcm/clk-iproc-pll.c
++++ b/drivers/clk/bcm/clk-iproc-pll.c
+@@ -137,6 +137,18 @@ static int pll_wait_for_lock(struct ipro
+ 	return -EIO;
+ }
+ 
++static void iproc_pll_write(const struct iproc_pll *pll, void __iomem *base,
++			    const u32 offset, u32 val)
++{
++	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
++
++	writel(val, base + offset);
++
++	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK &&
++		     base == pll->pll_base))
++		val = readl(base + offset);
++}
++
+ static void __pll_disable(struct iproc_pll *pll)
+ {
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+@@ -145,27 +157,24 @@ static void __pll_disable(struct iproc_p
+ 	if (ctrl->flags & IPROC_CLK_PLL_ASIU) {
+ 		val = readl(pll->asiu_base + ctrl->asiu.offset);
+ 		val &= ~(1 << ctrl->asiu.en_shift);
+-		writel(val, pll->asiu_base + ctrl->asiu.offset);
++		iproc_pll_write(pll, pll->asiu_base, ctrl->asiu.offset, val);
+ 	}
+ 
+ 	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
+ 		val = readl(pll->pll_base + ctrl->aon.offset);
+ 		val |= (bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-		writel(val, pll->pll_base + ctrl->aon.offset);
+-
+-		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-			readl(pll->pll_base + ctrl->aon.offset);
++		iproc_pll_write(pll, pll->pll_base, ctrl->aon.offset, val);
+ 	}
+ 
+ 	if (pll->pwr_base) {
+ 		/* latch input value so core power can be shut down */
+ 		val = readl(pll->pwr_base + ctrl->aon.offset);
+ 		val |= (1 << ctrl->aon.iso_shift);
+-		writel(val, pll->pwr_base + ctrl->aon.offset);
++		iproc_pll_write(pll, pll->pwr_base, ctrl->aon.offset, val);
+ 
+ 		/* power down the core */
+ 		val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-		writel(val, pll->pwr_base + ctrl->aon.offset);
++		iproc_pll_write(pll, pll->pwr_base, ctrl->aon.offset, val);
+ 	}
+ }
+ 
+@@ -177,10 +186,7 @@ static int __pll_enable(struct iproc_pll
+ 	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
+ 		val = readl(pll->pll_base + ctrl->aon.offset);
+ 		val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-		writel(val, pll->pll_base + ctrl->aon.offset);
+-
+-		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-			readl(pll->pll_base + ctrl->aon.offset);
++		iproc_pll_write(pll, pll->pll_base, ctrl->aon.offset, val);
+ 	}
+ 
+ 	if (pll->pwr_base) {
+@@ -188,14 +194,14 @@ static int __pll_enable(struct iproc_pll
+ 		val = readl(pll->pwr_base + ctrl->aon.offset);
+ 		val |= bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift;
+ 		val &= ~(1 << ctrl->aon.iso_shift);
+-		writel(val, pll->pwr_base + ctrl->aon.offset);
++		iproc_pll_write(pll, pll->pwr_base, ctrl->aon.offset, val);
+ 	}
+ 
+ 	/* certain PLLs also need to be ungated from the ASIU top level */
+ 	if (ctrl->flags & IPROC_CLK_PLL_ASIU) {
+ 		val = readl(pll->asiu_base + ctrl->asiu.offset);
+ 		val |= (1 << ctrl->asiu.en_shift);
+-		writel(val, pll->asiu_base + ctrl->asiu.offset);
++		iproc_pll_write(pll, pll->asiu_base, ctrl->asiu.offset, val);
+ 	}
+ 
+ 	return 0;
+@@ -209,9 +215,7 @@ static void __pll_put_in_reset(struct ip
+ 
+ 	val = readl(pll->pll_base + reset->offset);
+ 	val &= ~(1 << reset->reset_shift | 1 << reset->p_reset_shift);
+-	writel(val, pll->pll_base + reset->offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + reset->offset);
++	iproc_pll_write(pll, pll->pll_base, reset->offset, val);
+ }
+ 
+ static void __pll_bring_out_reset(struct iproc_pll *pll, unsigned int kp,
+@@ -228,9 +232,7 @@ static void __pll_bring_out_reset(struct
+ 	val |=  ki << reset->ki_shift | kp << reset->kp_shift |
+ 		ka << reset->ka_shift;
+ 	val |= 1 << reset->reset_shift | 1 << reset->p_reset_shift;
+-	writel(val, pll->pll_base + reset->offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + reset->offset);
++	iproc_pll_write(pll, pll->pll_base, reset->offset, val);
+ }
+ 
+ static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index,
+@@ -285,9 +287,8 @@ static int pll_set_rate(struct iproc_clk
+ 	/* put PLL in reset */
+ 	__pll_put_in_reset(pll);
+ 
+-	writel(0, pll->pll_base + ctrl->vco_ctrl.u_offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->vco_ctrl.u_offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->vco_ctrl.u_offset, 0);
++
+ 	val = readl(pll->pll_base + ctrl->vco_ctrl.l_offset);
+ 
+ 	if (rate >= VCO_LOW && rate < VCO_MID)
+@@ -298,17 +299,13 @@ static int pll_set_rate(struct iproc_clk
+ 	else
+ 		val |= (1 << PLL_VCO_HIGH_SHIFT);
+ 
+-	writel(val, pll->pll_base + ctrl->vco_ctrl.l_offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->vco_ctrl.l_offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->vco_ctrl.l_offset, val);
+ 
+ 	/* program integer part of NDIV */
+ 	val = readl(pll->pll_base + ctrl->ndiv_int.offset);
+ 	val &= ~(bit_mask(ctrl->ndiv_int.width) << ctrl->ndiv_int.shift);
+ 	val |= vco->ndiv_int << ctrl->ndiv_int.shift;
+-	writel(val, pll->pll_base + ctrl->ndiv_int.offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->ndiv_int.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->ndiv_int.offset, val);
+ 
+ 	/* program fractional part of NDIV */
+ 	if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
+@@ -316,18 +313,15 @@ static int pll_set_rate(struct iproc_clk
+ 		val &= ~(bit_mask(ctrl->ndiv_frac.width) <<
+ 			 ctrl->ndiv_frac.shift);
+ 		val |= vco->ndiv_frac << ctrl->ndiv_frac.shift;
+-		writel(val, pll->pll_base + ctrl->ndiv_frac.offset);
+-		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-			readl(pll->pll_base + ctrl->ndiv_frac.offset);
++		iproc_pll_write(pll, pll->pll_base, ctrl->ndiv_frac.offset,
++				val);
+ 	}
+ 
+ 	/* program PDIV */
+ 	val = readl(pll->pll_base + ctrl->pdiv.offset);
+ 	val &= ~(bit_mask(ctrl->pdiv.width) << ctrl->pdiv.shift);
+ 	val |= vco->pdiv << ctrl->pdiv.shift;
+-	writel(val, pll->pll_base + ctrl->pdiv.offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->pdiv.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->pdiv.offset, val);
+ 
+ 	__pll_bring_out_reset(pll, kp, ka, ki);
+ 
+@@ -464,14 +458,12 @@ static int iproc_clk_enable(struct clk_h
+ 	/* channel enable is active low */
+ 	val = readl(pll->pll_base + ctrl->enable.offset);
+ 	val &= ~(1 << ctrl->enable.enable_shift);
+-	writel(val, pll->pll_base + ctrl->enable.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
+ 
+ 	/* also make sure channel is not held */
+ 	val = readl(pll->pll_base + ctrl->enable.offset);
+ 	val &= ~(1 << ctrl->enable.hold_shift);
+-	writel(val, pll->pll_base + ctrl->enable.offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->enable.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
+ 
+ 	return 0;
+ }
+@@ -488,9 +480,7 @@ static void iproc_clk_disable(struct clk
+ 
+ 	val = readl(pll->pll_base + ctrl->enable.offset);
+ 	val |= 1 << ctrl->enable.enable_shift;
+-	writel(val, pll->pll_base + ctrl->enable.offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->enable.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
+ }
+ 
+ static unsigned long iproc_clk_recalc_rate(struct clk_hw *hw,
+@@ -559,9 +549,7 @@ static int iproc_clk_set_rate(struct clk
+ 		val &= ~(bit_mask(ctrl->mdiv.width) << ctrl->mdiv.shift);
+ 		val |= div << ctrl->mdiv.shift;
+ 	}
+-	writel(val, pll->pll_base + ctrl->mdiv.offset);
+-	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-		readl(pll->pll_base + ctrl->mdiv.offset);
++	iproc_pll_write(pll, pll->pll_base, ctrl->mdiv.offset, val);
+ 	clk->rate = parent_rate / div;
+ 
+ 	return 0;
+@@ -588,9 +576,7 @@ static void iproc_pll_sw_cfg(struct ipro
+ 
+ 		val = readl(pll->pll_base + ctrl->sw_ctrl.offset);
+ 		val |= BIT(ctrl->sw_ctrl.shift);
+-		writel(val, pll->pll_base + ctrl->sw_ctrl.offset);
+-		if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK))
+-			readl(pll->pll_base + ctrl->sw_ctrl.offset);
++		iproc_pll_write(pll, pll->pll_base, ctrl->sw_ctrl.offset, val);
+ 	}
+ }
+ 
diff --git a/target/linux/bcm53xx/patches-4.3/048-clk-iproc-Split-off-dig_filter.patch b/target/linux/bcm53xx/patches-4.3/048-clk-iproc-Split-off-dig_filter.patch
new file mode 100644
index 0000000000..528311f8d6
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/048-clk-iproc-Split-off-dig_filter.patch
@@ -0,0 +1,158 @@
+From fb9e4932d17ad32786d03cb672fb62f2b337acf5 Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:29 -0400
+Subject: [PATCH 48/50] clk: iproc: Split off dig_filter
+
+The PLL loop filter/gain can be located in a separate register on some
+SoCs.  Split these off into a separate variable, so that an offset can
+be added if necessary.  Also, make the necessary modifications to the
+Cygnus and NSP drivers for this change.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/clk-cygnus.c    | 17 +++++++++++------
+ drivers/clk/bcm/clk-iproc-pll.c | 14 +++++++++-----
+ drivers/clk/bcm/clk-iproc.h     | 10 +++++++++-
+ drivers/clk/bcm/clk-nsp.c       | 14 +++++++++-----
+ 4 files changed, 38 insertions(+), 17 deletions(-)
+
+--- a/drivers/clk/bcm/clk-cygnus.c
++++ b/drivers/clk/bcm/clk-cygnus.c
+@@ -34,9 +34,11 @@
+ 		{ .offset = o, .en_shift = es, .high_shift = hs, \
+ 		.high_width = hw, .low_shift = ls, .low_width = lw }
+ 
+-#define RESET_VAL(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \
+-	.reset_shift = rs, .p_reset_shift = prs, .ki_shift = kis, \
+-	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
++#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
++	.p_reset_shift = prs }
++
++#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
++	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas,    \
+ 	.ka_width = kaw }
+ 
+ #define VCO_CTRL_VAL(uo, lo) { .u_offset = uo, .l_offset = lo }
+@@ -56,7 +58,8 @@ static const struct iproc_pll_ctrl genpl
+ 	.flags = IPROC_CLK_AON | IPROC_CLK_PLL_HAS_NDIV_FRAC |
+ 		IPROC_CLK_PLL_NEEDS_SW_CFG,
+ 	.aon = AON_VAL(0x0, 2, 1, 0),
+-	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 3),
++	.reset = RESET_VAL(0x0, 11, 10),
++	.dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3),
+ 	.sw_ctrl = SW_CTRL_VAL(0x10, 31),
+ 	.ndiv_int = REG_VAL(0x10, 20, 10),
+ 	.ndiv_frac = REG_VAL(0x10, 0, 20),
+@@ -114,7 +117,8 @@ CLK_OF_DECLARE(cygnus_genpll, "brcm,cygn
+ static const struct iproc_pll_ctrl lcpll0 = {
+ 	.flags = IPROC_CLK_AON | IPROC_CLK_PLL_NEEDS_SW_CFG,
+ 	.aon = AON_VAL(0x0, 2, 5, 4),
+-	.reset = RESET_VAL(0x0, 31, 30, 27, 3, 23, 4, 19, 4),
++	.reset = RESET_VAL(0x0, 31, 30),
++	.dig_filter = DF_VAL(0x0, 27, 3, 23, 4, 19, 4),
+ 	.sw_ctrl = SW_CTRL_VAL(0x4, 31),
+ 	.ndiv_int = REG_VAL(0x4, 16, 10),
+ 	.pdiv = REG_VAL(0x4, 26, 4),
+@@ -191,7 +195,8 @@ static const struct iproc_pll_ctrl mipip
+ 		 IPROC_CLK_NEEDS_READ_BACK,
+ 	.aon = AON_VAL(0x0, 4, 17, 16),
+ 	.asiu = ASIU_GATE_VAL(0x0, 3),
+-	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 4),
++	.reset = RESET_VAL(0x0, 11, 10),
++	.dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 4),
+ 	.ndiv_int = REG_VAL(0x10, 20, 10),
+ 	.ndiv_frac = REG_VAL(0x10, 0, 20),
+ 	.pdiv = REG_VAL(0x14, 0, 4),
+--- a/drivers/clk/bcm/clk-iproc-pll.c
++++ b/drivers/clk/bcm/clk-iproc-pll.c
+@@ -224,13 +224,17 @@ static void __pll_bring_out_reset(struct
+ 	u32 val;
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+ 	const struct iproc_pll_reset_ctrl *reset = &ctrl->reset;
++	const struct iproc_pll_dig_filter_ctrl *dig_filter = &ctrl->dig_filter;
++
++	val = readl(pll->pll_base + dig_filter->offset);
++	val &= ~(bit_mask(dig_filter->ki_width) << dig_filter->ki_shift |
++		bit_mask(dig_filter->kp_width) << dig_filter->kp_shift |
++		bit_mask(dig_filter->ka_width) << dig_filter->ka_shift);
++	val |= ki << dig_filter->ki_shift | kp << dig_filter->kp_shift |
++	       ka << dig_filter->ka_shift;
++	iproc_pll_write(pll, pll->pll_base, dig_filter->offset, val);
+ 
+ 	val = readl(pll->pll_base + reset->offset);
+-	val &= ~(bit_mask(reset->ki_width) << reset->ki_shift |
+-		 bit_mask(reset->kp_width) << reset->kp_shift |
+-		 bit_mask(reset->ka_width) << reset->ka_shift);
+-	val |=  ki << reset->ki_shift | kp << reset->kp_shift |
+-		ka << reset->ka_shift;
+ 	val |= 1 << reset->reset_shift | 1 << reset->p_reset_shift;
+ 	iproc_pll_write(pll, pll->pll_base, reset->offset, val);
+ }
+--- a/drivers/clk/bcm/clk-iproc.h
++++ b/drivers/clk/bcm/clk-iproc.h
+@@ -94,12 +94,19 @@ struct iproc_pll_aon_pwr_ctrl {
+ };
+ 
+ /*
+- * Control of the PLL reset, with Ki, Kp, and Ka parameters
++ * Control of the PLL reset
+  */
+ struct iproc_pll_reset_ctrl {
+ 	unsigned int offset;
+ 	unsigned int reset_shift;
+ 	unsigned int p_reset_shift;
++};
++
++/*
++ * Control of the Ki, Kp, and Ka parameters
++ */
++struct iproc_pll_dig_filter_ctrl {
++	unsigned int offset;
+ 	unsigned int ki_shift;
+ 	unsigned int ki_width;
+ 	unsigned int kp_shift;
+@@ -129,6 +136,7 @@ struct iproc_pll_ctrl {
+ 	struct iproc_pll_aon_pwr_ctrl aon;
+ 	struct iproc_asiu_gate asiu;
+ 	struct iproc_pll_reset_ctrl reset;
++	struct iproc_pll_dig_filter_ctrl dig_filter;
+ 	struct iproc_pll_sw_ctrl sw_ctrl;
+ 	struct iproc_clk_reg_op ndiv_int;
+ 	struct iproc_clk_reg_op ndiv_frac;
+--- a/drivers/clk/bcm/clk-nsp.c
++++ b/drivers/clk/bcm/clk-nsp.c
+@@ -26,9 +26,11 @@
+ #define AON_VAL(o, pw, ps, is) { .offset = o, .pwr_width = pw, \
+ 	.pwr_shift = ps, .iso_shift = is }
+ 
+-#define RESET_VAL(o, rs, prs, kis, kiw, kps, kpw, kas, kaw) { .offset = o, \
+-	.reset_shift = rs, .p_reset_shift = prs, .ki_shift = kis, \
+-	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas, \
++#define RESET_VAL(o, rs, prs) { .offset = o, .reset_shift = rs, \
++	.p_reset_shift = prs }
++
++#define DF_VAL(o, kis, kiw, kps, kpw, kas, kaw) { .offset = o, .ki_shift = kis,\
++	.ki_width = kiw, .kp_shift = kps, .kp_width = kpw, .ka_shift = kas,    \
+ 	.ka_width = kaw }
+ 
+ #define ENABLE_VAL(o, es, hs, bs) { .offset = o, .enable_shift = es, \
+@@ -43,7 +45,8 @@ CLK_OF_DECLARE(nsp_armpll, "brcm,nsp-arm
+ static const struct iproc_pll_ctrl genpll = {
+ 	.flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
+ 	.aon = AON_VAL(0x0, 1, 12, 0),
+-	.reset = RESET_VAL(0x0, 11, 10, 4, 3, 0, 4, 7, 3),
++	.reset = RESET_VAL(0x0, 11, 10),
++	.dig_filter = DF_VAL(0x0, 4, 3, 0, 4, 7, 3),
+ 	.ndiv_int = REG_VAL(0x14, 20, 10),
+ 	.ndiv_frac = REG_VAL(0x14, 0, 20),
+ 	.pdiv = REG_VAL(0x18, 24, 3),
+@@ -99,7 +102,8 @@ CLK_OF_DECLARE(nsp_genpll_clk, "brcm,nsp
+ static const struct iproc_pll_ctrl lcpll0 = {
+ 	.flags = IPROC_CLK_PLL_HAS_NDIV_FRAC | IPROC_CLK_EMBED_PWRCTRL,
+ 	.aon = AON_VAL(0x0, 1, 24, 0),
+-	.reset = RESET_VAL(0x0, 23, 22, 16, 3, 12, 4, 19, 4),
++	.reset = RESET_VAL(0x0, 23, 22),
++	.dig_filter = DF_VAL(0x0, 16, 3, 12, 4, 19, 4),
+ 	.ndiv_int = REG_VAL(0x4, 20, 8),
+ 	.ndiv_frac = REG_VAL(0x4, 0, 20),
+ 	.pdiv = REG_VAL(0x4, 28, 3),
diff --git a/target/linux/bcm53xx/patches-4.3/049-clk-iproc-Separate-status-and-control-variables.patch b/target/linux/bcm53xx/patches-4.3/049-clk-iproc-Separate-status-and-control-variables.patch
new file mode 100644
index 0000000000..1e7cbc0d89
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/049-clk-iproc-Separate-status-and-control-variables.patch
@@ -0,0 +1,319 @@
+From eeb32564795a3584dba6281f445ff2aa552be36b Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Thu, 15 Oct 2015 15:48:30 -0400
+Subject: [PATCH 49/50] clk: iproc: Separate status and control variables
+
+Some PLLs have separate registers for Status and Control.  The means the
+pll_base needs to be split into 2 new variables, so that those PLLs can
+specify device tree registers for those independently.  Also, add a new
+driver flag to identify this presence of the split, and let the driver
+know that additional registers need to be used.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ drivers/clk/bcm/clk-iproc-pll.c | 96 ++++++++++++++++++++++++-----------------
+ drivers/clk/bcm/clk-iproc.h     |  6 +++
+ 2 files changed, 62 insertions(+), 40 deletions(-)
+
+--- a/drivers/clk/bcm/clk-iproc-pll.c
++++ b/drivers/clk/bcm/clk-iproc-pll.c
+@@ -74,7 +74,8 @@ struct iproc_clk {
+ };
+ 
+ struct iproc_pll {
+-	void __iomem *pll_base;
++	void __iomem *status_base;
++	void __iomem *control_base;
+ 	void __iomem *pwr_base;
+ 	void __iomem *asiu_base;
+ 
+@@ -127,7 +128,7 @@ static int pll_wait_for_lock(struct ipro
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+ 
+ 	for (i = 0; i < LOCK_DELAY; i++) {
+-		u32 val = readl(pll->pll_base + ctrl->status.offset);
++		u32 val = readl(pll->status_base + ctrl->status.offset);
+ 
+ 		if (val & (1 << ctrl->status.shift))
+ 			return 0;
+@@ -145,7 +146,7 @@ static void iproc_pll_write(const struct
+ 	writel(val, base + offset);
+ 
+ 	if (unlikely(ctrl->flags & IPROC_CLK_NEEDS_READ_BACK &&
+-		     base == pll->pll_base))
++		     (base == pll->status_base || base == pll->control_base)))
+ 		val = readl(base + offset);
+ }
+ 
+@@ -161,9 +162,9 @@ static void __pll_disable(struct iproc_p
+ 	}
+ 
+ 	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
+-		val = readl(pll->pll_base + ctrl->aon.offset);
++		val = readl(pll->control_base + ctrl->aon.offset);
+ 		val |= (bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-		iproc_pll_write(pll, pll->pll_base, ctrl->aon.offset, val);
++		iproc_pll_write(pll, pll->control_base, ctrl->aon.offset, val);
+ 	}
+ 
+ 	if (pll->pwr_base) {
+@@ -184,9 +185,9 @@ static int __pll_enable(struct iproc_pll
+ 	u32 val;
+ 
+ 	if (ctrl->flags & IPROC_CLK_EMBED_PWRCTRL) {
+-		val = readl(pll->pll_base + ctrl->aon.offset);
++		val = readl(pll->control_base + ctrl->aon.offset);
+ 		val &= ~(bit_mask(ctrl->aon.pwr_width) << ctrl->aon.pwr_shift);
+-		iproc_pll_write(pll, pll->pll_base, ctrl->aon.offset, val);
++		iproc_pll_write(pll, pll->control_base, ctrl->aon.offset, val);
+ 	}
+ 
+ 	if (pll->pwr_base) {
+@@ -213,9 +214,9 @@ static void __pll_put_in_reset(struct ip
+ 	const struct iproc_pll_ctrl *ctrl = pll->ctrl;
+ 	const struct iproc_pll_reset_ctrl *reset = &ctrl->reset;
+ 
+-	val = readl(pll->pll_base + reset->offset);
++	val = readl(pll->control_base + reset->offset);
+ 	val &= ~(1 << reset->reset_shift | 1 << reset->p_reset_shift);
+-	iproc_pll_write(pll, pll->pll_base, reset->offset, val);
++	iproc_pll_write(pll, pll->control_base, reset->offset, val);
+ }
+ 
+ static void __pll_bring_out_reset(struct iproc_pll *pll, unsigned int kp,
+@@ -226,17 +227,17 @@ static void __pll_bring_out_reset(struct
+ 	const struct iproc_pll_reset_ctrl *reset = &ctrl->reset;
+ 	const struct iproc_pll_dig_filter_ctrl *dig_filter = &ctrl->dig_filter;
+ 
+-	val = readl(pll->pll_base + dig_filter->offset);
++	val = readl(pll->control_base + dig_filter->offset);
+ 	val &= ~(bit_mask(dig_filter->ki_width) << dig_filter->ki_shift |
+ 		bit_mask(dig_filter->kp_width) << dig_filter->kp_shift |
+ 		bit_mask(dig_filter->ka_width) << dig_filter->ka_shift);
+ 	val |= ki << dig_filter->ki_shift | kp << dig_filter->kp_shift |
+ 	       ka << dig_filter->ka_shift;
+-	iproc_pll_write(pll, pll->pll_base, dig_filter->offset, val);
++	iproc_pll_write(pll, pll->control_base, dig_filter->offset, val);
+ 
+-	val = readl(pll->pll_base + reset->offset);
++	val = readl(pll->control_base + reset->offset);
+ 	val |= 1 << reset->reset_shift | 1 << reset->p_reset_shift;
+-	iproc_pll_write(pll, pll->pll_base, reset->offset, val);
++	iproc_pll_write(pll, pll->control_base, reset->offset, val);
+ }
+ 
+ static int pll_set_rate(struct iproc_clk *clk, unsigned int rate_index,
+@@ -291,9 +292,9 @@ static int pll_set_rate(struct iproc_clk
+ 	/* put PLL in reset */
+ 	__pll_put_in_reset(pll);
+ 
+-	iproc_pll_write(pll, pll->pll_base, ctrl->vco_ctrl.u_offset, 0);
++	iproc_pll_write(pll, pll->control_base, ctrl->vco_ctrl.u_offset, 0);
+ 
+-	val = readl(pll->pll_base + ctrl->vco_ctrl.l_offset);
++	val = readl(pll->control_base + ctrl->vco_ctrl.l_offset);
+ 
+ 	if (rate >= VCO_LOW && rate < VCO_MID)
+ 		val |= (1 << PLL_VCO_LOW_SHIFT);
+@@ -303,29 +304,29 @@ static int pll_set_rate(struct iproc_clk
+ 	else
+ 		val |= (1 << PLL_VCO_HIGH_SHIFT);
+ 
+-	iproc_pll_write(pll, pll->pll_base, ctrl->vco_ctrl.l_offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->vco_ctrl.l_offset, val);
+ 
+ 	/* program integer part of NDIV */
+-	val = readl(pll->pll_base + ctrl->ndiv_int.offset);
++	val = readl(pll->control_base + ctrl->ndiv_int.offset);
+ 	val &= ~(bit_mask(ctrl->ndiv_int.width) << ctrl->ndiv_int.shift);
+ 	val |= vco->ndiv_int << ctrl->ndiv_int.shift;
+-	iproc_pll_write(pll, pll->pll_base, ctrl->ndiv_int.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->ndiv_int.offset, val);
+ 
+ 	/* program fractional part of NDIV */
+ 	if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
+-		val = readl(pll->pll_base + ctrl->ndiv_frac.offset);
++		val = readl(pll->control_base + ctrl->ndiv_frac.offset);
+ 		val &= ~(bit_mask(ctrl->ndiv_frac.width) <<
+ 			 ctrl->ndiv_frac.shift);
+ 		val |= vco->ndiv_frac << ctrl->ndiv_frac.shift;
+-		iproc_pll_write(pll, pll->pll_base, ctrl->ndiv_frac.offset,
++		iproc_pll_write(pll, pll->control_base, ctrl->ndiv_frac.offset,
+ 				val);
+ 	}
+ 
+ 	/* program PDIV */
+-	val = readl(pll->pll_base + ctrl->pdiv.offset);
++	val = readl(pll->control_base + ctrl->pdiv.offset);
+ 	val &= ~(bit_mask(ctrl->pdiv.width) << ctrl->pdiv.shift);
+ 	val |= vco->pdiv << ctrl->pdiv.shift;
+-	iproc_pll_write(pll, pll->pll_base, ctrl->pdiv.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->pdiv.offset, val);
+ 
+ 	__pll_bring_out_reset(pll, kp, ka, ki);
+ 
+@@ -372,7 +373,7 @@ static unsigned long iproc_pll_recalc_ra
+ 		return 0;
+ 
+ 	/* PLL needs to be locked */
+-	val = readl(pll->pll_base + ctrl->status.offset);
++	val = readl(pll->status_base + ctrl->status.offset);
+ 	if ((val & (1 << ctrl->status.shift)) == 0) {
+ 		clk->rate = 0;
+ 		return 0;
+@@ -383,19 +384,19 @@ static unsigned long iproc_pll_recalc_ra
+ 	 *
+ 	 * ((ndiv_int + ndiv_frac / 2^20) * (parent clock rate / pdiv)
+ 	 */
+-	val = readl(pll->pll_base + ctrl->ndiv_int.offset);
++	val = readl(pll->control_base + ctrl->ndiv_int.offset);
+ 	ndiv_int = (val >> ctrl->ndiv_int.shift) &
+ 		bit_mask(ctrl->ndiv_int.width);
+ 	ndiv = ndiv_int << 20;
+ 
+ 	if (ctrl->flags & IPROC_CLK_PLL_HAS_NDIV_FRAC) {
+-		val = readl(pll->pll_base + ctrl->ndiv_frac.offset);
++		val = readl(pll->control_base + ctrl->ndiv_frac.offset);
+ 		ndiv_frac = (val >> ctrl->ndiv_frac.shift) &
+ 			bit_mask(ctrl->ndiv_frac.width);
+ 		ndiv += ndiv_frac;
+ 	}
+ 
+-	val = readl(pll->pll_base + ctrl->pdiv.offset);
++	val = readl(pll->control_base + ctrl->pdiv.offset);
+ 	pdiv = (val >> ctrl->pdiv.shift) & bit_mask(ctrl->pdiv.width);
+ 
+ 	clk->rate = (ndiv * parent_rate) >> 20;
+@@ -460,14 +461,14 @@ static int iproc_clk_enable(struct clk_h
+ 	u32 val;
+ 
+ 	/* channel enable is active low */
+-	val = readl(pll->pll_base + ctrl->enable.offset);
++	val = readl(pll->control_base + ctrl->enable.offset);
+ 	val &= ~(1 << ctrl->enable.enable_shift);
+-	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->enable.offset, val);
+ 
+ 	/* also make sure channel is not held */
+-	val = readl(pll->pll_base + ctrl->enable.offset);
++	val = readl(pll->control_base + ctrl->enable.offset);
+ 	val &= ~(1 << ctrl->enable.hold_shift);
+-	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->enable.offset, val);
+ 
+ 	return 0;
+ }
+@@ -482,9 +483,9 @@ static void iproc_clk_disable(struct clk
+ 	if (ctrl->flags & IPROC_CLK_AON)
+ 		return;
+ 
+-	val = readl(pll->pll_base + ctrl->enable.offset);
++	val = readl(pll->control_base + ctrl->enable.offset);
+ 	val |= 1 << ctrl->enable.enable_shift;
+-	iproc_pll_write(pll, pll->pll_base, ctrl->enable.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->enable.offset, val);
+ }
+ 
+ static unsigned long iproc_clk_recalc_rate(struct clk_hw *hw,
+@@ -499,7 +500,7 @@ static unsigned long iproc_clk_recalc_ra
+ 	if (parent_rate == 0)
+ 		return 0;
+ 
+-	val = readl(pll->pll_base + ctrl->mdiv.offset);
++	val = readl(pll->control_base + ctrl->mdiv.offset);
+ 	mdiv = (val >> ctrl->mdiv.shift) & bit_mask(ctrl->mdiv.width);
+ 	if (mdiv == 0)
+ 		mdiv = 256;
+@@ -546,14 +547,14 @@ static int iproc_clk_set_rate(struct clk
+ 	if (div > 256)
+ 		return -EINVAL;
+ 
+-	val = readl(pll->pll_base + ctrl->mdiv.offset);
++	val = readl(pll->control_base + ctrl->mdiv.offset);
+ 	if (div == 256) {
+ 		val &= ~(bit_mask(ctrl->mdiv.width) << ctrl->mdiv.shift);
+ 	} else {
+ 		val &= ~(bit_mask(ctrl->mdiv.width) << ctrl->mdiv.shift);
+ 		val |= div << ctrl->mdiv.shift;
+ 	}
+-	iproc_pll_write(pll, pll->pll_base, ctrl->mdiv.offset, val);
++	iproc_pll_write(pll, pll->control_base, ctrl->mdiv.offset, val);
+ 	clk->rate = parent_rate / div;
+ 
+ 	return 0;
+@@ -578,9 +579,10 @@ static void iproc_pll_sw_cfg(struct ipro
+ 	if (ctrl->flags & IPROC_CLK_PLL_NEEDS_SW_CFG) {
+ 		u32 val;
+ 
+-		val = readl(pll->pll_base + ctrl->sw_ctrl.offset);
++		val = readl(pll->control_base + ctrl->sw_ctrl.offset);
+ 		val |= BIT(ctrl->sw_ctrl.shift);
+-		iproc_pll_write(pll, pll->pll_base, ctrl->sw_ctrl.offset, val);
++		iproc_pll_write(pll, pll->control_base, ctrl->sw_ctrl.offset,
++				val);
+ 	}
+ }
+ 
+@@ -615,8 +617,8 @@ void __init iproc_pll_clk_setup(struct d
+ 	if (WARN_ON(!pll->clks))
+ 		goto err_clks;
+ 
+-	pll->pll_base = of_iomap(node, 0);
+-	if (WARN_ON(!pll->pll_base))
++	pll->control_base = of_iomap(node, 0);
++	if (WARN_ON(!pll->control_base))
+ 		goto err_pll_iomap;
+ 
+ 	/* Some SoCs do not require the pwr_base, thus failing is not fatal */
+@@ -629,6 +631,16 @@ void __init iproc_pll_clk_setup(struct d
+ 			goto err_asiu_iomap;
+ 	}
+ 
++	if (pll_ctrl->flags & IPROC_CLK_PLL_SPLIT_STAT_CTRL) {
++		/* Some SoCs have a split status/control.  If this does not
++		 * exist, assume they are unified.
++		 */
++		pll->status_base = of_iomap(node, 2);
++		if (!pll->status_base)
++			goto err_status_iomap;
++	} else
++		pll->status_base = pll->control_base;
++
+ 	/* initialize and register the PLL itself */
+ 	pll->ctrl = pll_ctrl;
+ 
+@@ -699,6 +711,10 @@ err_clk_register:
+ 		clk_unregister(pll->clk_data.clks[i]);
+ 
+ err_pll_register:
++	if (pll->status_base != pll->control_base)
++		iounmap(pll->status_base);
++
++err_status_iomap:
+ 	if (pll->asiu_base)
+ 		iounmap(pll->asiu_base);
+ 
+@@ -706,7 +722,7 @@ err_asiu_iomap:
+ 	if (pll->pwr_base)
+ 		iounmap(pll->pwr_base);
+ 
+-	iounmap(pll->pll_base);
++	iounmap(pll->control_base);
+ 
+ err_pll_iomap:
+ 	kfree(pll->clks);
+--- a/drivers/clk/bcm/clk-iproc.h
++++ b/drivers/clk/bcm/clk-iproc.h
+@@ -55,6 +55,12 @@
+ #define IPROC_CLK_EMBED_PWRCTRL BIT(5)
+ 
+ /*
++ * Some PLLs have separate registers for Status and Control.  Identify this to
++ * let the driver know if additional registers need to be used
++ */
++#define IPROC_CLK_PLL_SPLIT_STAT_CTRL BIT(6)
++
++/*
+  * Parameters for VCO frequency configuration
+  *
+  * VCO frequency =
diff --git a/target/linux/bcm53xx/patches-4.3/050-ARM-dts-enable-clock-support-for-BCM5301X.patch b/target/linux/bcm53xx/patches-4.3/050-ARM-dts-enable-clock-support-for-BCM5301X.patch
new file mode 100644
index 0000000000..a9a5246c0c
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.3/050-ARM-dts-enable-clock-support-for-BCM5301X.patch
@@ -0,0 +1,153 @@
+From e96ef422d0095fe9ae39b03c0805a0db8ff7e382 Mon Sep 17 00:00:00 2001
+From: Jon Mason <jonmason@broadcom.com>
+Date: Tue, 13 Oct 2015 17:22:25 -0400
+Subject: [PATCH 50/50] ARM: dts: enable clock support for BCM5301X
+
+Replace current device tree dummy clocks with real clock support for
+Broadcom Northstar SoCs.
+
+Signed-off-by: Jon Mason <jonmason@broadcom.com>
+---
+ arch/arm/boot/dts/bcm5301x.dtsi | 88 ++++++++++++++++++++++++++++++++---------
+ 1 file changed, 69 insertions(+), 19 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
++++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -8,6 +8,7 @@
+  * Licensed under the GNU/GPL. See COPYING for details.
+  */
+ 
++#include <dt-bindings/clock/bcm-nsp.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/input/input.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+@@ -42,41 +43,48 @@
+ 
+ 	mpcore {
+ 		compatible = "simple-bus";
+-		ranges = <0x00000000 0x19020000 0x00003000>;
++		ranges = <0x00000000 0x19000000 0x00023000>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;
+ 
+-		scu@0000 {
++		a9pll: arm_clk@00000 {
++			#clock-cells = <0>;
++			compatible = "brcm,nsp-armpll";
++			clocks = <&osc>;
++			reg = <0x00000 0x1000>;
++		};
++
++		scu@20000 {
+ 			compatible = "arm,cortex-a9-scu";
+-			reg = <0x0000 0x100>;
++			reg = <0x20000 0x100>;
+ 		};
+ 
+-		timer@0200 {
++		timer@20200 {
+ 			compatible = "arm,cortex-a9-global-timer";
+-			reg = <0x0200 0x100>;
++			reg = <0x20200 0x100>;
+ 			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+-			clocks = <&clk_periph>;
++			clocks = <&periph_clk>;
+ 		};
+ 
+-		local-timer@0600 {
++		local-timer@20600 {
+ 			compatible = "arm,cortex-a9-twd-timer";
+-			reg = <0x0600 0x100>;
++			reg = <0x20600 0x100>;
+ 			interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+-			clocks = <&clk_periph>;
++			clocks = <&periph_clk>;
+ 		};
+ 
+-		gic: interrupt-controller@1000 {
++		gic: interrupt-controller@21000 {
+ 			compatible = "arm,cortex-a9-gic";
+ 			#interrupt-cells = <3>;
+ 			#address-cells = <0>;
+ 			interrupt-controller;
+-			reg = <0x1000 0x1000>,
+-			      <0x0100 0x100>;
++			reg = <0x21000 0x1000>,
++			      <0x20100 0x100>;
+ 		};
+ 
+-		L2: cache-controller@2000 {
++		L2: cache-controller@22000 {
+ 			compatible = "arm,pl310-cache";
+-			reg = <0x2000 0x1000>;
++			reg = <0x22000 0x1000>;
+ 			cache-unified;
+ 			arm,shared-override;
+ 			prefetch-data = <1>;
+@@ -94,14 +102,37 @@
+ 
+ 	clocks {
+ 		#address-cells = <1>;
+-		#size-cells = <0>;
++		#size-cells = <1>;
++		ranges;
+ 
+-		/* As long as we do not have a real clock driver us this
+-		 * fixed clock */
+-		clk_periph: periph {
++		osc: oscillator {
++			#clock-cells = <0>;
+ 			compatible = "fixed-clock";
++			clock-frequency = <25000000>;
++		};
++
++		iprocmed: iprocmed {
+ 			#clock-cells = <0>;
+-			clock-frequency = <400000000>;
++			compatible = "fixed-factor-clock";
++			clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
++			clock-div = <2>;
++			clock-mult = <1>;
++		};
++
++		iprocslow: iprocslow {
++			#clock-cells = <0>;
++			compatible = "fixed-factor-clock";
++			clocks = <&genpll BCM_NSP_GENPLL_IPROCFAST_CLK>;
++			clock-div = <4>;
++			clock-mult = <1>;
++		};
++
++		periph_clk: periph_clk {
++			#clock-cells = <0>;
++			compatible = "fixed-factor-clock";
++			clocks = <&a9pll>;
++			clock-div = <2>;
++			clock-mult = <1>;
+ 		};
+ 	};
+ 
+@@ -189,4 +220,23 @@
+ 
+ 		brcm,nand-has-wp;
+ 	};
++
++	lcpll0: lcpll0@1800c100 {
++		#clock-cells = <1>;
++		compatible = "brcm,nsp-lcpll0";
++		reg = <0x1800c100 0x14>;
++		clocks = <&osc>;
++		clock-output-names = "lcpll0", "pcie_phy", "sdio",
++				     "ddr_phy";
++	};
++
++	genpll: genpll@1800c140 {
++		#clock-cells = <1>;
++		compatible = "brcm,nsp-genpll";
++		reg = <0x1800c140 0x24>;
++		clocks = <&osc>;
++		clock-output-names = "genpll", "phy", "ethernetclk",
++				     "usbclk", "iprocfast", "sata1",
++				     "sata2";
++	};
+ };
diff --git a/target/linux/bcm53xx/patches-4.3/301-ARM-BCM5301X-Add-SPROM.patch b/target/linux/bcm53xx/patches-4.3/301-ARM-BCM5301X-Add-SPROM.patch
index 9ca76b3d4c..ed6cc73bcc 100644
--- a/target/linux/bcm53xx/patches-4.3/301-ARM-BCM5301X-Add-SPROM.patch
+++ b/target/linux/bcm53xx/patches-4.3/301-ARM-BCM5301X-Add-SPROM.patch
@@ -13,7 +13,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
 
 --- a/arch/arm/boot/dts/bcm5301x.dtsi
 +++ b/arch/arm/boot/dts/bcm5301x.dtsi
-@@ -105,6 +105,10 @@
+@@ -136,6 +136,10 @@
  		};
  	};