Merge tag 'soc-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates (part 2) from Arnd Bergmann:
 "These patches are all for Renesas shmobile, and depend on the earlier
  pinctrl updates.  Remarkably, this adds support for three new SoCs:
  r8a73a4, r8a73a4 and r8a7778.  The bulk of the code added for these is
  for pinctrl (using the new subsystem) and for clocks (not yet using
  the common clock subsystem).  The latter will have to get converted in
  one of the upcoming releases, but shmobile is not ready for that yet.

  The series also contains Renesas shmobile board changes, adding one
  board file for each of the three new SoCs.  These boards are using a
  mix of classic and device-tree based probing, as there is still a lot
  of infrastructure in shmobile that has not been converted to DT yet.
  Once those are resolved to the degree that no board specific setup
  code is needed, they can get folded into the respective SoC setup files."

* tag 'soc-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits)
  ARM: shmobile: use r8a7790 timer setup code on Lager
  ARM: shmobile: force enable of r8a7790 arch timer
  ARM: shmobile: Add second I/O range for r8a7790 PFC
  ARM: shmobile: bockw: enable network settings on bootargs
  ARM: shmobile: bockw: add SMSC ethernet support
  ARM: shmobile: R8A7778: add Ether support
  ARM: shmobile: bockw: enable SMSC ethernet on defconfig
  ARM: shmobile: r8a7778: add r8a7778_init_irq_extpin()
  ARM: shmobile: r8a7778: remove pointless PLATFORM_INFO()
  ARM: shmobile: mackerel: clean up MMCIF vs. SDHI1 selection
  ARM: shmobile: mackerel: add interrupt names for SDHI0
  ARM: shmobile: mackerel: switch SDHI and MMCIF interfaces to slot-gpio
  ARM: shmobile: mackerel: remove OCR masks, where regulators are used
  ARM: shmobile: mackerel: SDHI resources do not have to be numbered
  ARM: shmobile: Initial r8a7790 Lager board support
  ARM: shmobile: APE6EVM LAN9220 support
  ARM: shmobile: APE6EVM PFC support
  ARM: shmobile: APE6EVM base support
  ARM: shmobile: kzm9g-reference: add ethernet support
  ARM: shmobile: add R-Car M1A Bock-W platform support
  ...

1 files changed, 46 insertions, 69 deletions

diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index 71843dd39e1..784fbaa4cc5 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -21,6 +21,8 @@
 #include <linux/io.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
+#include <asm/processor.h>
+#include <mach/clock.h>
 #include <mach/common.h>
 
 #define FRQCRA		IOMEM(0xe6150000)
@@ -82,61 +84,16 @@ struct clk sh73a0_extal2_clk = {
 	.rate		= 48000000,
 };
 
-/* A fixed divide-by-2 block */
-static unsigned long div2_recalc(struct clk *clk)
-{
-	return clk->parent->rate / 2;
-}
-
-static struct sh_clk_ops div2_clk_ops = {
-	.recalc		= div2_recalc,
-};
-
-static unsigned long div7_recalc(struct clk *clk)
-{
-	return clk->parent->rate / 7;
-}
-
-static struct sh_clk_ops div7_clk_ops = {
-	.recalc		= div7_recalc,
-};
-
-static unsigned long div13_recalc(struct clk *clk)
-{
-	return clk->parent->rate / 13;
-}
-
-static struct sh_clk_ops div13_clk_ops = {
-	.recalc		= div13_recalc,
-};
-
-/* Divide extal1 by two */
-static struct clk extal1_div2_clk = {
-	.ops		= &div2_clk_ops,
-	.parent		= &sh73a0_extal1_clk,
-};
-
-/* Divide extal2 by two */
-static struct clk extal2_div2_clk = {
-	.ops		= &div2_clk_ops,
-	.parent		= &sh73a0_extal2_clk,
-};
-
 static struct sh_clk_ops main_clk_ops = {
 	.recalc		= followparent_recalc,
 };
 
 /* Main clock */
 static struct clk main_clk = {
+	/* .parent wll be set on sh73a0_clock_init() */
 	.ops		= &main_clk_ops,
 };
 
-/* Divide Main clock by two */
-static struct clk main_div2_clk = {
-	.ops		= &div2_clk_ops,
-	.parent		= &main_clk,
-};
-
 /* PLL0, PLL1, PLL2, PLL3 */
 static unsigned long pll_recalc(struct clk *clk)
 {
@@ -192,21 +149,17 @@ static struct clk pll3_clk = {
 	.enable_bit	= 3,
 };
 
-/* Divide PLL */
-static struct clk pll1_div2_clk = {
-	.ops		= &div2_clk_ops,
-	.parent		= &pll1_clk,
-};
-
-static struct clk pll1_div7_clk = {
-	.ops		= &div7_clk_ops,
-	.parent		= &pll1_clk,
-};
+/* A fixed divide block */
+SH_CLK_RATIO(div2,  1, 2);
+SH_CLK_RATIO(div7,  1, 7);
+SH_CLK_RATIO(div13, 1, 13);
 
-static struct clk pll1_div13_clk = {
-	.ops		= &div13_clk_ops,
-	.parent		= &pll1_clk,
-};
+SH_FIXED_RATIO_CLK(extal1_div2_clk,	sh73a0_extal1_clk,	div2);
+SH_FIXED_RATIO_CLK(extal2_div2_clk,	sh73a0_extal2_clk,	div2);
+SH_FIXED_RATIO_CLK(main_div2_clk,	main_clk,		div2);
+SH_FIXED_RATIO_CLK(pll1_div2_clk,	pll1_clk,		div2);
+SH_FIXED_RATIO_CLK(pll1_div7_clk,	pll1_clk,		div7);
+SH_FIXED_RATIO_CLK(pll1_div13_clk,	pll1_clk,		div13);
 
 /* External input clock */
 struct clk sh73a0_extcki_clk = {
@@ -234,14 +187,24 @@ static struct clk *main_clks[] = {
 	&sh73a0_extalr_clk,
 };
 
-static void div4_kick(struct clk *clk)
+static int frqcr_kick(void)
 {
-	unsigned long value;
+	int i;
+
+	/* set KICK bit in FRQCRB to update hardware setting, check success */
+	__raw_writel(__raw_readl(FRQCRB) | (1 << 31), FRQCRB);
+	for (i = 1000; i; i--)
+		if (__raw_readl(FRQCRB) & (1 << 31))
+			cpu_relax();
+		else
+			return i;
 
-	/* set KICK bit in FRQCRB to update hardware setting */
-	value = __raw_readl(FRQCRB);
-	value |= (1 << 31);
-	__raw_writel(value, FRQCRB);
+	return -ETIMEDOUT;
+}
+
+static void div4_kick(struct clk *clk)
+{
+	frqcr_kick();
 }
 
 static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
@@ -258,7 +221,7 @@ static struct clk_div4_table div4_table = {
 };
 
 enum { DIV4_I, DIV4_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
-	DIV4_Z, DIV4_ZTR, DIV4_ZT, DIV4_ZX, DIV4_HP, DIV4_NR };
+	DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR };
 
 #define DIV4(_reg, _bit, _mask, _flags) \
 	SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags)
@@ -271,12 +234,24 @@ static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0),
 	[DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0),
 	[DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0),
-	[DIV4_ZTR] = DIV4(FRQCRB, 20, 0xdff, 0),
-	[DIV4_ZT] = DIV4(FRQCRB, 16, 0xdff, 0),
 	[DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0),
 	[DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0),
 };
 
+static unsigned long twd_recalc(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / 4;
+}
+
+static struct sh_clk_ops twd_clk_ops = {
+	.recalc = twd_recalc,
+};
+
+static struct clk twd_clk = {
+	.parent = &div4_clks[DIV4_Z],
+	.ops = &twd_clk_ops,
+};
+
 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
 	DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
 	DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
@@ -471,6 +446,7 @@ static struct clk dsi1phy_clk = {
 static struct clk *late_main_clks[] = {
 	&dsi0phy_clk,
 	&dsi1phy_clk,
+	&twd_clk,
 };
 
 enum { MSTP001,
@@ -535,6 +511,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 static struct clk_lookup lookups[] = {
 	/* main clocks */
 	CLKDEV_CON_ID("r_clk", &r_clk),
+	CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */
 
 	/* DIV6 clocks */
 	CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),