[GIT PULL 00/23] Renesas ARM-based SoC updates for v3.11

[GIT PULL 00/23] Renesas ARM-based SoC updates for v3.11

[Simon Horman]

Hi Olof, Hi Arnd,

The following changes since commit c7788792a5e7b0d5d7f96d0766b4cb6112d47d75:

  Linux 3.10-rc2 (2013-05-20 14:37:38 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-soc-for-v3.11

for you to fetch changes up to 022a815a9119270a485c4b00ea3dce4314605c35:

  ARM: shmobile: sh73a0: div4 clocks must check the kick bit before changing rate (2013-06-06 14:10:05 +0900)

----------------------------------------------------------------
Renesas ARM-based SoC updates for v3.11

* Increased clock coverage for r8a7740, r8a73a4, r8a7778 and r8a7790
* Use fixed clock ratio for r8a7778
* Always use shmobile_setup_delay for sh73a0
* Add add CPUFreq support for sh73a0
* Check kick bit before changing rate on sh73a0
* Do not overwrite all div4 clock operations on sh73a0

A very small cleanup patch, "ARM: shmobile: remove ";" from
SH_FIXED_RATIO_CLK*() macro", is included as it a dependency
of r8a7790 clock changes.

----------------------------------------------------------------
Bastian Hecht (2):
      ARM: shmobile: r8a7740: Add interim sh-eth device name to clocks list
      ARM: shmobile: r8a7740: Add I2C DT clock names

Guennadi Liakhovetski (4):
      ARM: shmobile: sh73a0: add support for adjusting CPU frequency
      ARM: shmobile: sh73a0: add CPUFreq support
      ARM: shmobile: sh73a0: do not overwrite all div4 clock operations
      ARM: shmobile: sh73a0: div4 clocks must check the kick bit before changing rate

Kuninori Morimoto (12):
      ARM: shmobile: r8a7778: fixup Ether setup code position
      ARM: shmobile: r8a73a4: add main clock
      ARM: shmobile: r8a73a4: add pll clocks
      ARM: shmobile: r8a73a4: add div4 clocks
      ARM: shmobile: r8a73a4: add div6 clocks
      ARM: shmobile: r8a7778: use fixed ratio clock
      ARM: shmobile: r8a7778: add SDHI clock support
      ARM: shmobile: r8a7778: Register SDHI device
      ARM: shmobile: remove ";" from SH_FIXED_RATIO_CLK*() macro
      ARM: shmobile: r8a7790: add main clock
      ARM: shmobile: r8a7790: add div4 clocks
      ARM: shmobile: r8a7790: add div6 clocks

Laurent Pinchart (3):
      ARM: shmobile: r8a7740: add TPU PWM support
      ARM: shmobile: r8a7790: Make private clock arrays static
      ARM: shmobile: r8a7790: add TPU PWM support

Magnus Damm (1):
      ARM: shmobile: sh73a0: Always use shmobile_setup_delay()

Phil Edworthy (1):
      ARM: shmobile: r8a7779: Add PCIe clocks

 arch/arm/mach-shmobile/Kconfig                |   2 +
 arch/arm/mach-shmobile/clock-r8a73a4.c        | 375 ++++++++++++++++++++++++--
 arch/arm/mach-shmobile/clock-r8a7740.c        |   7 +-
 arch/arm/mach-shmobile/clock-r8a7778.c        | 156 ++++++++++-
 arch/arm/mach-shmobile/clock-r8a7779.c        |   4 +-
 arch/arm/mach-shmobile/clock-r8a7790.c        | 238 +++++++++++++++-
 arch/arm/mach-shmobile/clock-sh73a0.c         | 111 +++++++-
 arch/arm/mach-shmobile/include/mach/clock.h   |   4 +-
 arch/arm/mach-shmobile/include/mach/r8a7778.h |   2 +
 arch/arm/mach-shmobile/setup-r8a7778.c        |  52 +++-
 arch/arm/mach-shmobile/setup-sh73a0.c         |  16 +-
 11 files changed, 906 insertions(+), 61 deletions(-)

-- 
1.8.2.1

[PATCH 01/23] ARM: shmobile: r8a7778: fixup Ether setup code position

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Ether setup code position was scattering.
This patch fixes it up

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-r8a7778.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index 30b4a33..d6ee521 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -80,12 +80,6 @@ static struct sh_timer_config sh_tmu1_platform_data = {
 	.clocksource_rating	= 200,
 };
 
-/* Ether */
-static struct resource ether_resources[] = {
-	DEFINE_RES_MEM(0xfde00000, 0x400),
-	DEFINE_RES_IRQ(gic_iid(0x89)),
-};
-
 #define r8a7778_register_tmu(idx)			\
 	platform_device_register_resndata(		\
 		&platform_bus, "sh_tmu", idx,		\
@@ -94,6 +88,20 @@ static struct resource ether_resources[] = {
 		&sh_tmu##idx##_platform_data,		\
 		sizeof(sh_tmu##idx##_platform_data))
 
+/* Ether */
+static struct resource ether_resources[] = {
+	DEFINE_RES_MEM(0xfde00000, 0x400),
+	DEFINE_RES_IRQ(gic_iid(0x89)),
+};
+
+void __init r8a7778_add_ether_device(struct sh_eth_plat_data *pdata)
+{
+	platform_device_register_resndata(&platform_bus, "sh_eth", -1,
+					  ether_resources,
+					  ARRAY_SIZE(ether_resources),
+					  pdata, sizeof(*pdata));
+}
+
 void __init r8a7778_add_standard_devices(void)
 {
 	int i;
@@ -118,14 +126,6 @@ void __init r8a7778_add_standard_devices(void)
 	r8a7778_register_tmu(1);
 }
 
-void __init r8a7778_add_ether_device(struct sh_eth_plat_data *pdata)
-{
-	platform_device_register_resndata(&platform_bus, "sh_eth", -1,
-					  ether_resources,
-					  ARRAY_SIZE(ether_resources),
-					  pdata, sizeof(*pdata));
-}
-
 static struct renesas_intc_irqpin_config irqpin_platform_data = {
 	.irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */
 	.sense_bitfield_width = 2,
-- 
1.8.2.1

[PATCH 02/23] ARM: shmobile: r8a7740: Add interim sh-eth device name to clocks list

[Simon Horman]

From: Bastian Hecht <hechtb@gmail.com>

When we use the ethernet device via DT setup, we need to add it
to a lookup list until this is properly handled later in a DT-only
fashion.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7740.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index c0d39aa..5bd8da0 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -592,6 +592,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_mmcif",		&mstp_clks[MSTP312]),
 	CLKDEV_DEV_ID("e6bd0000.mmcif",         &mstp_clks[MSTP312]),
 	CLKDEV_DEV_ID("sh-eth",			&mstp_clks[MSTP309]),
+	CLKDEV_DEV_ID("e9a00000.sh-eth",	&mstp_clks[MSTP309]),
 
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2",	&mstp_clks[MSTP415]),
 	CLKDEV_DEV_ID("e6870000.sdhi",          &mstp_clks[MSTP415]),
-- 
1.8.2.1

[PATCH 03/23] ARM: shmobile: r8a7740: Add I2C DT clock names

[Simon Horman]

From: Bastian Hecht <hechtb@gmail.com>

Add clock association for i2c0 and i2c1 for the new DT names.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7740.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 5bd8da0..633307d 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -551,6 +551,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_tmu.4",		&mstp_clks[MSTP111]),
 	CLKDEV_DEV_ID("sh_tmu.5",		&mstp_clks[MSTP111]),
 	CLKDEV_DEV_ID("i2c-sh_mobile.0",	&mstp_clks[MSTP116]),
+	CLKDEV_DEV_ID("fff20000.i2c",		&mstp_clks[MSTP116]),
 	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1",	&mstp_clks[MSTP117]),
 	CLKDEV_DEV_ID("sh_tmu.0",		&mstp_clks[MSTP125]),
 	CLKDEV_DEV_ID("sh_tmu.1",		&mstp_clks[MSTP125]),
@@ -584,6 +585,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_cmt.10",		&mstp_clks[MSTP329]),
 	CLKDEV_DEV_ID("sh_fsi2",		&mstp_clks[MSTP328]),
 	CLKDEV_DEV_ID("i2c-sh_mobile.1",	&mstp_clks[MSTP323]),
+	CLKDEV_DEV_ID("e6c20000.i2c",		&mstp_clks[MSTP323]),
 	CLKDEV_DEV_ID("renesas_usbhs",		&mstp_clks[MSTP320]),
 	CLKDEV_DEV_ID("sh_mobile_sdhi.0",	&mstp_clks[MSTP314]),
 	CLKDEV_DEV_ID("e6850000.sdhi",          &mstp_clks[MSTP314]),
-- 
1.8.2.1

[PATCH 04/23] ARM: shmobile: r8a7740: add TPU PWM support

[Simon Horman]

From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7740.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 633307d..cf65ef5 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -461,7 +461,7 @@ enum {
 
 	MSTP329, MSTP328, MSTP323, MSTP320,
 	MSTP314, MSTP313, MSTP312,
-	MSTP309,
+	MSTP309, MSTP304,
 
 	MSTP416, MSTP415, MSTP407, MSTP406,
 
@@ -499,6 +499,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP313] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 13, 0), /* SDHI1 */
 	[MSTP312] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 12, 0), /* MMC */
 	[MSTP309] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3,  9, 0), /* GEther */
+	[MSTP304] = SH_CLK_MSTP32(&div4_clks[DIV4_CP],	SMSTPCR3,  4, 0), /* TPU0 */
 
 	[MSTP416] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4, 16, 0), /* USBHOST */
 	[MSTP415] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR4, 15, 0), /* SDHI2 */
@@ -595,6 +596,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("e6bd0000.mmcif",         &mstp_clks[MSTP312]),
 	CLKDEV_DEV_ID("sh-eth",			&mstp_clks[MSTP309]),
 	CLKDEV_DEV_ID("e9a00000.sh-eth",	&mstp_clks[MSTP309]),
+	CLKDEV_DEV_ID("renesas_tpu_pwm",	&mstp_clks[MSTP304]),
 
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2",	&mstp_clks[MSTP415]),
 	CLKDEV_DEV_ID("e6870000.sdhi",          &mstp_clks[MSTP415]),
-- 
1.8.2.1

[PATCH 05/23] ARM: shmobile: r8a73a4: add main clock

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Almost all clock needs main clock which is basis clock on r8a73a4.
This patch adds it, and, set parent clock via CKSCR register.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 53 ++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index e710c00..42942b4 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
+#include <mach/clock.h>
 #include <mach/common.h>
 
 #define CPG_BASE 0xe6150000
@@ -31,6 +32,8 @@
 #define SMSTPCR2 0xe6150138
 #define SMSTPCR5 0xe6150144
 
+#define CKSCR		0xE61500C0
+
 static struct clk_mapping cpg_mapping = {
 	.phys   = CPG_BASE,
 	.len    = CPG_LEN,
@@ -51,10 +54,32 @@ static struct clk extal2_clk = {
 	.mapping	= &cpg_mapping,
 };
 
+static struct sh_clk_ops followparent_clk_ops = {
+	.recalc	= followparent_recalc,
+};
+
+static struct clk main_clk = {
+	/* .parent will be set r8a73a4_clock_init */
+	.ops	= &followparent_clk_ops,
+};
+
+SH_CLK_RATIO(div2,	1, 2);
+SH_CLK_RATIO(div4,	1, 4);
+
+SH_FIXED_RATIO_CLK(main_div2_clk,	main_clk,		div2);
+SH_FIXED_RATIO_CLK(extal1_div2_clk,	extal1_clk,		div2);
+SH_FIXED_RATIO_CLK(extal2_div2_clk,	extal2_clk,		div2);
+SH_FIXED_RATIO_CLK(extal2_div4_clk,	extal2_clk,		div4);
+
 static struct clk *main_clks[] = {
 	&extalr_clk,
 	&extal1_clk,
+	&extal1_div2_clk,
 	&extal2_clk,
+	&extal2_div2_clk,
+	&extal2_div4_clk,
+	&main_clk,
+	&main_div2_clk,
 };
 
 enum {
@@ -74,6 +99,13 @@ static struct clk mstp_clks[MSTP_NR] = {
 };
 
 static struct clk_lookup lookups[] = {
+	/* main clock */
+	CLKDEV_CON_ID("extal1",			&extal1_clk),
+	CLKDEV_CON_ID("extal1_div2",		&extal1_div2_clk),
+	CLKDEV_CON_ID("extal2",			&extal2_clk),
+	CLKDEV_CON_ID("extal2_div2",		&extal2_div2_clk),
+	CLKDEV_CON_ID("extal2_div4",		&extal2_div4_clk),
+
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]),
@@ -90,6 +122,7 @@ void __init r8a73a4_clock_init(void)
 {
 	void __iomem *cpg_base, *reg;
 	int k, ret = 0;
+	u32 ckscr;
 
 	/* fix MPCLK to EXTAL2 for now.
 	 * this is needed until more detailed clock topology is supported
@@ -100,6 +133,26 @@ void __init r8a73a4_clock_init(void)
 	iowrite32(ioread32(reg) | 1 << 7 | 0x0c, reg); /* set CKSEL */
 	iounmap(cpg_base);
 
+	reg = ioremap_nocache(CKSCR, PAGE_SIZE);
+	BUG_ON(!reg);
+	ckscr = ioread32(reg);
+	iounmap(reg);
+
+	switch ((ckscr >> 28) & 0x3) {
+	case 0:
+		main_clk.parent = &extal1_clk;
+		break;
+	case 1:
+		main_clk.parent = &extal1_div2_clk;
+		break;
+	case 2:
+		main_clk.parent = &extal2_clk;
+		break;
+	case 3:
+		main_clk.parent = &extal2_div2_clk;
+		break;
+	}
+
 	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 		ret = clk_register(main_clks[k]);
 
-- 
1.8.2.1

[PATCH 06/23] ARM: shmobile: r8a73a4: add pll clocks

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

PLL clocks are basis clock for other clock.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 101 +++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 42942b4..2be592f 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -33,6 +33,14 @@
 #define SMSTPCR5 0xe6150144
 
 #define CKSCR		0xE61500C0
+#define PLLECR		0xE61500D0
+#define PLL1CR		0xE6150028
+#define PLL2CR		0xE615002C
+#define PLL2SCR		0xE61501F4
+#define PLL2HCR		0xE61501E4
+
+
+#define CPG_MAP(o) ((o - CPG_BASE) + cpg_mapping.base)
 
 static struct clk_mapping cpg_mapping = {
 	.phys   = CPG_BASE,
@@ -71,6 +79,86 @@ SH_FIXED_RATIO_CLK(extal1_div2_clk,	extal1_clk,		div2);
 SH_FIXED_RATIO_CLK(extal2_div2_clk,	extal2_clk,		div2);
 SH_FIXED_RATIO_CLK(extal2_div4_clk,	extal2_clk,		div4);
 
+/*
+ *		PLL clocks
+ */
+static struct clk *pll_parent_main[] = {
+	[0] = &main_clk,
+	[1] = &main_div2_clk
+};
+
+static struct clk *pll_parent_main_extal[8] = {
+	[0] = &main_div2_clk,
+	[1] = &extal2_div2_clk,
+	[3] = &extal2_div4_clk,
+	[4] = &main_clk,
+	[5] = &extal2_clk,
+};
+
+static unsigned long pll_recalc(struct clk *clk)
+{
+	unsigned long mult = 1;
+
+	if (ioread32(CPG_MAP(PLLECR)) & (1 << clk->enable_bit))
+		mult = (((ioread32(clk->mapped_reg) >> 24) & 0x7f) + 1);
+
+	return clk->parent->rate * mult;
+}
+
+static int pll_set_parent(struct clk *clk, struct clk *parent)
+{
+	u32 val;
+	int i, ret;
+
+	if (!clk->parent_table || !clk->parent_num)
+		return -EINVAL;
+
+	/* Search the parent */
+	for (i = 0; i < clk->parent_num; i++)
+		if (clk->parent_table[i] = parent)
+			break;
+
+	if (i = clk->parent_num)
+		return -ENODEV;
+
+	ret = clk_reparent(clk, parent);
+	if (ret < 0)
+		return ret;
+
+	val = ioread32(clk->mapped_reg) &
+		~(((1 << clk->src_width) - 1) << clk->src_shift);
+
+	iowrite32(val | i << clk->src_shift, clk->mapped_reg);
+
+	return 0;
+}
+
+static struct sh_clk_ops pll_clk_ops = {
+	.recalc		= pll_recalc,
+	.set_parent	= pll_set_parent,
+};
+
+#define PLL_CLOCK(name, p, pt, w, s, reg, e)		\
+	static struct clk name = {			\
+		.ops		= &pll_clk_ops,		\
+		.flags		= CLK_ENABLE_ON_INIT,	\
+		.parent		= p,			\
+		.parent_table	= pt,			\
+		.parent_num	= ARRAY_SIZE(pt),	\
+		.src_width	= w,			\
+		.src_shift	= s,			\
+		.enable_reg	= (void __iomem *)reg,	\
+		.enable_bit	= e,			\
+		.mapping	= &cpg_mapping,		\
+	}
+
+PLL_CLOCK(pll1_clk,  &main_clk,      pll_parent_main,       1, 7, PLL1CR,  1);
+PLL_CLOCK(pll2_clk,  &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2CR,  2);
+PLL_CLOCK(pll2s_clk, &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2SCR, 4);
+PLL_CLOCK(pll2h_clk, &main_div2_clk, pll_parent_main_extal, 3, 5, PLL2HCR, 5);
+
+SH_FIXED_RATIO_CLK(pll1_div2_clk,	pll1_clk,	div2);
+
 static struct clk *main_clks[] = {
 	&extalr_clk,
 	&extal1_clk,
@@ -80,6 +168,11 @@ static struct clk *main_clks[] = {
 	&extal2_div4_clk,
 	&main_clk,
 	&main_div2_clk,
+	&pll1_clk,
+	&pll1_div2_clk,
+	&pll2_clk,
+	&pll2s_clk,
+	&pll2h_clk,
 };
 
 enum {
@@ -106,6 +199,14 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("extal2_div2",		&extal2_div2_clk),
 	CLKDEV_CON_ID("extal2_div4",		&extal2_div4_clk),
 
+	/* pll clock */
+	CLKDEV_CON_ID("pll1",			&pll1_clk),
+	CLKDEV_CON_ID("pll1_div2",		&pll1_div2_clk),
+	CLKDEV_CON_ID("pll2",			&pll2_clk),
+	CLKDEV_CON_ID("pll2s",			&pll2s_clk),
+	CLKDEV_CON_ID("pll2h",			&pll2h_clk),
+
+	/* MSTP */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]),
-- 
1.8.2.1

[PATCH 07/23] ARM: shmobile: r8a73a4: add div4 clocks

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

DIV4 clocks control each core clocks.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 45 ++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 2be592f..147314a 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -32,6 +32,8 @@
 #define SMSTPCR2 0xe6150138
 #define SMSTPCR5 0xe6150144
 
+#define FRQCRA		0xE6150000
+#define FRQCRB		0xE6150004
 #define CKSCR		0xE61500C0
 #define PLLECR		0xE61500D0
 #define PLL1CR		0xE6150028
@@ -175,6 +177,46 @@ static struct clk *main_clks[] = {
 	&pll2h_clk,
 };
 
+/* DIV4 */
+static void div4_kick(struct clk *clk)
+{
+	unsigned long value;
+
+	/* set KICK bit in FRQCRB to update hardware setting */
+	value = ioread32(CPG_MAP(FRQCRB));
+	value |= (1 << 31);
+	iowrite32(value, CPG_MAP(FRQCRB));
+}
+
+static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, 24, 0, 36, 48, 10};
+
+static struct clk_div_mult_table div4_div_mult_table = {
+	.divisors	= divisors,
+	.nr_divisors	= ARRAY_SIZE(divisors),
+};
+
+static struct clk_div4_table div4_table = {
+	.div_mult_table	= &div4_div_mult_table,
+	.kick		= div4_kick,
+};
+
+enum {
+	DIV4_I, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
+	DIV4_ZX, DIV4_ZS, DIV4_HP,
+	DIV4_NR };
+
+static struct clk div4_clks[DIV4_NR] = {
+	[DIV4_I]	= SH_CLK_DIV4(&pll1_clk, FRQCRA, 20, 0x0dff, CLK_ENABLE_ON_INIT),
+	[DIV4_M3]	= SH_CLK_DIV4(&pll1_clk, FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
+	[DIV4_B]	= SH_CLK_DIV4(&pll1_clk, FRQCRA,  8, 0x0dff, CLK_ENABLE_ON_INIT),
+	[DIV4_M1]	= SH_CLK_DIV4(&pll1_clk, FRQCRA,  4, 0x1dff, 0),
+	[DIV4_M2]	= SH_CLK_DIV4(&pll1_clk, FRQCRA,  0, 0x1dff, 0),
+	[DIV4_ZX]	= SH_CLK_DIV4(&pll1_clk, FRQCRB, 12, 0x0dff, 0),
+	[DIV4_ZS]	= SH_CLK_DIV4(&pll1_clk, FRQCRB,  8, 0x0dff, 0),
+	[DIV4_HP]	= SH_CLK_DIV4(&pll1_clk, FRQCRB,  4, 0x0dff, 0),
+};
+
+/* MSTP */
 enum {
 	MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
 	MSTP522,
@@ -258,6 +300,9 @@ void __init r8a73a4_clock_init(void)
 		ret = clk_register(main_clks[k]);
 
 	if (!ret)
+		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+
+	if (!ret)
 		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-- 
1.8.2.1

[PATCH 08/23] ARM: shmobile: r8a73a4: add div6 clocks

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

DIV6 clocks control each core clocks.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 182 +++++++++++++++++++++++++++++----
 1 file changed, 163 insertions(+), 19 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 147314a..f6227bb 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -28,19 +28,34 @@
 #define CPG_BASE 0xe6150000
 #define CPG_LEN 0x270
 
-#define MPCKCR 0xe6150080
 #define SMSTPCR2 0xe6150138
 #define SMSTPCR5 0xe6150144
 
 #define FRQCRA		0xE6150000
 #define FRQCRB		0xE6150004
-#define CKSCR		0xE61500C0
+#define VCLKCR1		0xE6150008
+#define VCLKCR2		0xE615000C
+#define VCLKCR3		0xE615001C
+#define VCLKCR4		0xE6150014
+#define VCLKCR5		0xE6150034
+#define ZBCKCR		0xE6150010
+#define SD0CKCR		0xE6150074
+#define SD1CKCR		0xE6150078
+#define SD2CKCR		0xE615007C
+#define MMC0CKCR	0xE6150240
+#define MMC1CKCR	0xE6150244
+#define FSIACKCR	0xE6150018
+#define FSIBCKCR	0xE6150090
+#define MPCKCR		0xe6150080
+#define SPUVCKCR	0xE6150094
+#define HSICKCR		0xE615026C
+#define M4CKCR		0xE6150098
 #define PLLECR		0xE61500D0
 #define PLL1CR		0xE6150028
 #define PLL2CR		0xE615002C
 #define PLL2SCR		0xE61501F4
 #define PLL2HCR		0xE61501E4
-
+#define CKSCR		0xE61500C0
 
 #define CPG_MAP(o) ((o - CPG_BASE) + cpg_mapping.base)
 
@@ -81,6 +96,13 @@ SH_FIXED_RATIO_CLK(extal1_div2_clk,	extal1_clk,		div2);
 SH_FIXED_RATIO_CLK(extal2_div2_clk,	extal2_clk,		div2);
 SH_FIXED_RATIO_CLK(extal2_div4_clk,	extal2_clk,		div4);
 
+/* External FSIACK/FSIBCK clock */
+static struct clk fsiack_clk = {
+};
+
+static struct clk fsibck_clk = {
+};
+
 /*
  *		PLL clocks
  */
@@ -170,6 +192,8 @@ static struct clk *main_clks[] = {
 	&extal2_div4_clk,
 	&main_clk,
 	&main_div2_clk,
+	&fsiack_clk,
+	&fsibck_clk,
 	&pll1_clk,
 	&pll1_div2_clk,
 	&pll2_clk,
@@ -216,6 +240,111 @@ static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_HP]	= SH_CLK_DIV4(&pll1_clk, FRQCRB,  4, 0x0dff, 0),
 };
 
+enum {
+	DIV6_ZB,
+	DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
+	DIV6_MMC0, DIV6_MMC1,
+	DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_VCK4, DIV6_VCK5,
+	DIV6_FSIA, DIV6_FSIB,
+	DIV6_MP, DIV6_M4, DIV6_HSI, DIV6_SPUV,
+	DIV6_NR };
+
+static struct clk *div6_parents[8] = {
+	[0] = &pll1_div2_clk,
+	[1] = &pll2s_clk,
+	[3] = &extal2_clk,
+	[4] = &main_div2_clk,
+	[6] = &extalr_clk,
+};
+
+static struct clk *fsia_parents[4] = {
+	[0] = &pll1_div2_clk,
+	[1] = &pll2s_clk,
+	[2] = &fsiack_clk,
+};
+
+static struct clk *fsib_parents[4] = {
+	[0] = &pll1_div2_clk,
+	[1] = &pll2s_clk,
+	[2] = &fsibck_clk,
+};
+
+static struct clk *mp_parents[4] = {
+	[0] = &pll1_div2_clk,
+	[1] = &pll2s_clk,
+	[2] = &extal2_clk,
+	[3] = &extal2_clk,
+};
+
+static struct clk *m4_parents[2] = {
+	[0] = &pll2s_clk,
+};
+
+static struct clk *hsi_parents[4] = {
+	[0] = &pll2h_clk,
+	[1] = &pll1_div2_clk,
+	[3] = &pll2s_clk,
+};
+
+/*** FIXME ***
+ * SH_CLK_DIV6_EXT() macro doesn't care .mapping
+ * but, it is necessary on R-Car (= ioremap() base CPG)
+ * The difference between
+ * SH_CLK_DIV6_EXT() <--> SH_CLK_MAP_DIV6_EXT()
+ * is only .mapping
+ */
+#define SH_CLK_MAP_DIV6_EXT(_reg, _flags, _parents,			\
+			    _num_parents, _src_shift, _src_width)	\
+{									\
+	.enable_reg	= (void __iomem *)_reg,				\
+	.enable_bit	= 0, /* unused */				\
+	.flags		= _flags | CLK_MASK_DIV_ON_DISABLE,		\
+	.div_mask	= SH_CLK_DIV6_MSK,				\
+	.parent_table	= _parents,					\
+	.parent_num	= _num_parents,					\
+	.src_shift	= _src_shift,					\
+	.src_width	= _src_width,					\
+	.mapping	= &cpg_mapping,					\
+}
+
+static struct clk div6_clks[DIV6_NR] = {
+	[DIV6_ZB] = SH_CLK_MAP_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT,
+				div6_parents, 2, 7, 1),
+	[DIV6_SDHI0] = SH_CLK_MAP_DIV6_EXT(SD0CKCR, 0,
+				div6_parents, 2, 6, 2),
+	[DIV6_SDHI1] = SH_CLK_MAP_DIV6_EXT(SD1CKCR, 0,
+				div6_parents, 2, 6, 2),
+	[DIV6_SDHI2] = SH_CLK_MAP_DIV6_EXT(SD2CKCR, 0,
+				div6_parents, 2, 6, 2),
+	[DIV6_MMC0] = SH_CLK_MAP_DIV6_EXT(MMC0CKCR, 0,
+				div6_parents, 2, 6, 2),
+	[DIV6_MMC1] = SH_CLK_MAP_DIV6_EXT(MMC1CKCR, 0,
+				div6_parents, 2, 6, 2),
+	[DIV6_VCK1] = SH_CLK_MAP_DIV6_EXT(VCLKCR1, 0, /* didn't care bit[6-7] */
+				div6_parents, ARRAY_SIZE(div6_parents), 12, 3),
+	[DIV6_VCK2] = SH_CLK_MAP_DIV6_EXT(VCLKCR2, 0, /* didn't care bit[6-7] */
+				div6_parents, ARRAY_SIZE(div6_parents), 12, 3),
+	[DIV6_VCK3] = SH_CLK_MAP_DIV6_EXT(VCLKCR3, 0, /* didn't care bit[6-7] */
+				div6_parents, ARRAY_SIZE(div6_parents), 12, 3),
+	[DIV6_VCK4] = SH_CLK_MAP_DIV6_EXT(VCLKCR4, 0, /* didn't care bit[6-7] */
+				div6_parents, ARRAY_SIZE(div6_parents), 12, 3),
+	[DIV6_VCK5] = SH_CLK_MAP_DIV6_EXT(VCLKCR5, 0, /* didn't care bit[6-7] */
+				div6_parents, ARRAY_SIZE(div6_parents), 12, 3),
+	[DIV6_FSIA] = SH_CLK_MAP_DIV6_EXT(FSIACKCR, 0,
+				fsia_parents, ARRAY_SIZE(fsia_parents), 6, 2),
+	[DIV6_FSIB] = SH_CLK_MAP_DIV6_EXT(FSIBCKCR, 0,
+				fsib_parents, ARRAY_SIZE(fsib_parents), 6, 2),
+	[DIV6_MP] = SH_CLK_MAP_DIV6_EXT(MPCKCR, 0, /* it needs bit[9-11] control */
+				mp_parents, ARRAY_SIZE(mp_parents), 6, 2),
+	/* pll2s will be selected always for M4 */
+	[DIV6_M4] = SH_CLK_MAP_DIV6_EXT(M4CKCR, 0, /* it needs bit[9] control */
+				m4_parents, ARRAY_SIZE(m4_parents), 6, 1),
+	[DIV6_HSI] = SH_CLK_MAP_DIV6_EXT(HSICKCR, 0, /* it needs bit[9] control */
+				hsi_parents, ARRAY_SIZE(hsi_parents), 6, 2),
+	[DIV6_SPUV] = SH_CLK_MAP_DIV6_EXT(SPUVCKCR, 0,
+				mp_parents, ARRAY_SIZE(mp_parents), 6, 2),
+};
+
 /* MSTP */
 enum {
 	MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
@@ -224,12 +353,12 @@ enum {
 };
 
 static struct clk mstp_clks[MSTP_NR] = {
-	[MSTP204] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 4, 0), /* SCIFA0 */
-	[MSTP203] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 3, 0), /* SCIFA1 */
-	[MSTP206] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 6, 0), /* SCIFB0 */
-	[MSTP207] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 7, 0), /* SCIFB1 */
-	[MSTP216] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 16, 0), /* SCIFB2 */
-	[MSTP217] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR2, 17, 0), /* SCIFB3 */
+	[MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 4, 0), /* SCIFA0 */
+	[MSTP203] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 3, 0), /* SCIFA1 */
+	[MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 6, 0), /* SCIFB0 */
+	[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 7, 0), /* SCIFB1 */
+	[MSTP216] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 16, 0), /* SCIFB2 */
+	[MSTP217] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 17, 0), /* SCIFB3 */
 	[MSTP522] = SH_CLK_MSTP32(&extal2_clk, SMSTPCR5, 22, 0), /* Thermal */
 };
 
@@ -240,6 +369,8 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("extal2",			&extal2_clk),
 	CLKDEV_CON_ID("extal2_div2",		&extal2_div2_clk),
 	CLKDEV_CON_ID("extal2_div4",		&extal2_div4_clk),
+	CLKDEV_CON_ID("fsiack",			&fsiack_clk),
+	CLKDEV_CON_ID("fsibck",			&fsibck_clk),
 
 	/* pll clock */
 	CLKDEV_CON_ID("pll1",			&pll1_clk),
@@ -248,6 +379,25 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("pll2s",			&pll2s_clk),
 	CLKDEV_CON_ID("pll2h",			&pll2h_clk),
 
+	/* DIV6 */
+	CLKDEV_CON_ID("zb",			&div6_clks[DIV6_ZB]),
+	CLKDEV_CON_ID("sdhi0",			&div6_clks[DIV6_SDHI0]),
+	CLKDEV_CON_ID("sdhi1",			&div6_clks[DIV6_SDHI1]),
+	CLKDEV_CON_ID("sdhi2",			&div6_clks[DIV6_SDHI2]),
+	CLKDEV_CON_ID("mmc0",			&div6_clks[DIV6_MMC0]),
+	CLKDEV_CON_ID("mmc1",			&div6_clks[DIV6_MMC1]),
+	CLKDEV_CON_ID("vck1",			&div6_clks[DIV6_VCK1]),
+	CLKDEV_CON_ID("vck2",			&div6_clks[DIV6_VCK2]),
+	CLKDEV_CON_ID("vck3",			&div6_clks[DIV6_VCK3]),
+	CLKDEV_CON_ID("vck4",			&div6_clks[DIV6_VCK4]),
+	CLKDEV_CON_ID("vck5",			&div6_clks[DIV6_VCK5]),
+	CLKDEV_CON_ID("fsia",			&div6_clks[DIV6_FSIA]),
+	CLKDEV_CON_ID("fsib",			&div6_clks[DIV6_FSIB]),
+	CLKDEV_CON_ID("mp",			&div6_clks[DIV6_MP]),
+	CLKDEV_CON_ID("m4",			&div6_clks[DIV6_M4]),
+	CLKDEV_CON_ID("hsi",			&div6_clks[DIV6_HSI]),
+	CLKDEV_CON_ID("spuv",			&div6_clks[DIV6_SPUV]),
+
 	/* MSTP */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
@@ -263,19 +413,10 @@ static struct clk_lookup lookups[] = {
 
 void __init r8a73a4_clock_init(void)
 {
-	void __iomem *cpg_base, *reg;
+	void __iomem *reg;
 	int k, ret = 0;
 	u32 ckscr;
 
-	/* fix MPCLK to EXTAL2 for now.
-	 * this is needed until more detailed clock topology is supported
-	 */
-	cpg_base = ioremap_nocache(CPG_BASE, CPG_LEN);
-	BUG_ON(!cpg_base);
-	reg = cpg_base + (MPCKCR - CPG_BASE);
-	iowrite32(ioread32(reg) | 1 << 7 | 0x0c, reg); /* set CKSEL */
-	iounmap(cpg_base);
-
 	reg = ioremap_nocache(CKSCR, PAGE_SIZE);
 	BUG_ON(!reg);
 	ckscr = ioread32(reg);
@@ -303,6 +444,9 @@ void __init r8a73a4_clock_init(void)
 		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
 
 	if (!ret)
+		ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR);
+
+	if (!ret)
 		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-- 
1.8.2.1

[PATCH 09/23] ARM: shmobile: r8a7779: Add PCIe clocks

[Simon Horman]

From: Phil Edworthy <Phil.Edworthy@renesas.com>

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7779.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c
index 31d5cd4..9daeb8c 100644
--- a/arch/arm/mach-shmobile/clock-r8a7779.c
+++ b/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -112,7 +112,7 @@ static struct clk *main_clks[] = {
 };
 
 enum { MSTP323, MSTP322, MSTP321, MSTP320,
-	MSTP115, MSTP114,
+	MSTP116, MSTP115, MSTP114,
 	MSTP103, MSTP101, MSTP100,
 	MSTP030,
 	MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
@@ -125,6 +125,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP322] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 22, 0), /* SDHI1 */
 	[MSTP321] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 21, 0), /* SDHI2 */
 	[MSTP320] = SH_CLK_MSTP32(&clkp_clk, MSTPCR3, 20, 0), /* SDHI3 */
+	[MSTP116] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 16, 0), /* PCIe */
 	[MSTP115] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 15, 0), /* SATA */
 	[MSTP114] = SH_CLK_MSTP32(&clkp_clk, MSTPCR1, 14, 0), /* Ether */
 	[MSTP103] = SH_CLK_MSTP32(&clks_clk, MSTPCR1,  3, 0), /* DU */
@@ -161,6 +162,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("peripheral_clk",	&clkp_clk),
 
 	/* MSTP32 clocks */
+	CLKDEV_DEV_ID("rcar-pcie", &mstp_clks[MSTP116]), /* PCIe */
 	CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */
 	CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */
 	CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */
-- 
1.8.2.1

[PATCH 10/23] ARM: shmobile: r8a7778: use fixed ratio clock

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

R-Car M1 has many clocks, and it is possible to
read/use clock ratio of these clocks from FRQMRx.
But, these ratio are fixed value and
these are decided by MD pin status.

This patch reads MD pin status,
and used fixed ratio clock for other clocks.
It was tesed on bock-w board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7778.c | 149 ++++++++++++++++++++++++++++++---
 1 file changed, 136 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c
index cd68552..5cc271e 100644
--- a/arch/arm/mach-shmobile/clock-r8a7778.c
+++ b/arch/arm/mach-shmobile/clock-r8a7778.c
@@ -23,9 +23,23 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+/*
+ *     MD      MD      MD      MD       PLLA   PLLB    EXTAL   clki    clkz
+ *     19      18      12      11                      (HMz)   (MHz)   (MHz)
+ *----------------------------------------------------------------------------
+ *     1       0       0       0       x21     x21     38.00   800     800
+ *     1       0       0       1       x24     x24     33.33   800     800
+ *     1       0       1       0       x28     x28     28.50   800     800
+ *     1       0       1       1       x32     x32     25.00   800     800
+ *     1       1       0       1       x24     x21     33.33   800     700
+ *     1       1       1       0       x28     x21     28.50   800     600
+ *     1       1       1       1       x32     x24     25.00   800     600
+ */
+
 #include <linux/io.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
+#include <mach/clock.h>
 #include <mach/common.h>
 
 #define MSTPCR0		IOMEM(0xffc80030)
@@ -37,6 +51,9 @@
 #define MSTPCR4		IOMEM(0xffc80050)
 #define MSTPCR5		IOMEM(0xffc80054)
 #define MSTPCR6		IOMEM(0xffc80058)
+#define MODEMR		0xFFCC0020
+
+#define MD(nr)	BIT(nr)
 
 /* ioremap() through clock mapping mandatory to avoid
  * collision with ARM coherent DMA virtual memory range.
@@ -47,14 +64,42 @@ static struct clk_mapping cpg_mapping = {
 	.len	= 0x80,
 };
 
-static struct clk clkp = {
-	.rate   = 62500000, /* FIXME: shortcut */
-	.flags  = CLK_ENABLE_ON_INIT,
+static struct clk extal_clk = {
+	/* .rate will be updated on r8a7778_clock_init() */
 	.mapping = &cpg_mapping,
 };
 
+/*
+ * clock ratio of these clock will be updated
+ * on r8a7778_clock_init()
+ */
+SH_FIXED_RATIO_CLK_SET(plla_clk,	extal_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(pllb_clk,	extal_clk, 1, 1);
+SH_FIXED_RATIO_CLK_SET(i_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(s_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(s1_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(s3_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(s4_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(b_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(out_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(p_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(g_clk,		plla_clk,  1, 1);
+SH_FIXED_RATIO_CLK_SET(z_clk,		pllb_clk,  1, 1);
+
 static struct clk *main_clks[] = {
-	&clkp,
+	&extal_clk,
+	&plla_clk,
+	&pllb_clk,
+	&i_clk,
+	&s_clk,
+	&s1_clk,
+	&s3_clk,
+	&s4_clk,
+	&b_clk,
+	&out_clk,
+	&p_clk,
+	&g_clk,
+	&z_clk,
 };
 
 enum {
@@ -64,15 +109,15 @@ enum {
 	MSTP_NR };
 
 static struct clk mstp_clks[MSTP_NR] = {
-	[MSTP114] = SH_CLK_MSTP32(&clkp, MSTPCR1, 14, 0), /* Ether */
-	[MSTP026] = SH_CLK_MSTP32(&clkp, MSTPCR0, 26, 0), /* SCIF0 */
-	[MSTP025] = SH_CLK_MSTP32(&clkp, MSTPCR0, 25, 0), /* SCIF1 */
-	[MSTP024] = SH_CLK_MSTP32(&clkp, MSTPCR0, 24, 0), /* SCIF2 */
-	[MSTP023] = SH_CLK_MSTP32(&clkp, MSTPCR0, 23, 0), /* SCIF3 */
-	[MSTP022] = SH_CLK_MSTP32(&clkp, MSTPCR0, 22, 0), /* SCIF4 */
-	[MSTP021] = SH_CLK_MSTP32(&clkp, MSTPCR0, 21, 0), /* SCIF5 */
-	[MSTP016] = SH_CLK_MSTP32(&clkp, MSTPCR0, 16, 0), /* TMU0 */
-	[MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */
+	[MSTP114] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 14, 0), /* Ether */
+	[MSTP026] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 26, 0), /* SCIF0 */
+	[MSTP025] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 25, 0), /* SCIF1 */
+	[MSTP024] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 24, 0), /* SCIF2 */
+	[MSTP023] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 23, 0), /* SCIF3 */
+	[MSTP022] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 22, 0), /* SCIF4 */
+	[MSTP021] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 21, 0), /* SCIF5 */
+	[MSTP016] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 16, 0), /* TMU0 */
+	[MSTP015] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 15, 0), /* TMU1 */
 };
 
 static struct clk_lookup lookups[] = {
@@ -90,8 +135,86 @@ static struct clk_lookup lookups[] = {
 
 void __init r8a7778_clock_init(void)
 {
+	void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
+	u32 mode;
 	int k, ret = 0;
 
+	BUG_ON(!modemr);
+	mode = ioread32(modemr);
+	iounmap(modemr);
+
+	switch (mode & (MD(19) | MD(18) | MD(12) | MD(11))) {
+	case MD(19):
+		extal_clk.rate = 38000000;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	21, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	21, 1);
+		break;
+	case MD(19) | MD(11):
+		extal_clk.rate = 33333333;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	24, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	24, 1);
+		break;
+	case MD(19) | MD(12):
+		extal_clk.rate = 28500000;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	28, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	28, 1);
+		break;
+	case MD(19) | MD(12) | MD(11):
+		extal_clk.rate = 25000000;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	32, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	32, 1);
+		break;
+	case MD(19) | MD(18) | MD(11):
+		extal_clk.rate = 33333333;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	24, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	21, 1);
+		break;
+	case MD(19) | MD(18) | MD(12):
+		extal_clk.rate = 28500000;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	28, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	21, 1);
+		break;
+	case MD(19) | MD(18) | MD(12) | MD(11):
+		extal_clk.rate = 25000000;
+		SH_CLK_SET_RATIO(&plla_clk_ratio,	32, 1);
+		SH_CLK_SET_RATIO(&pllb_clk_ratio,	24, 1);
+		break;
+	default:
+		BUG();
+	}
+
+	if (mode & MD(1)) {
+		SH_CLK_SET_RATIO(&i_clk_ratio,	1, 1);
+		SH_CLK_SET_RATIO(&s_clk_ratio,	1, 3);
+		SH_CLK_SET_RATIO(&s1_clk_ratio,	1, 6);
+		SH_CLK_SET_RATIO(&s3_clk_ratio,	1, 4);
+		SH_CLK_SET_RATIO(&s4_clk_ratio,	1, 8);
+		SH_CLK_SET_RATIO(&p_clk_ratio,	1, 12);
+		SH_CLK_SET_RATIO(&g_clk_ratio,	1, 12);
+		if (mode & MD(2)) {
+			SH_CLK_SET_RATIO(&b_clk_ratio,		1, 18);
+			SH_CLK_SET_RATIO(&out_clk_ratio,	1, 18);
+		} else {
+			SH_CLK_SET_RATIO(&b_clk_ratio,		1, 12);
+			SH_CLK_SET_RATIO(&out_clk_ratio,	1, 12);
+		}
+	} else {
+		SH_CLK_SET_RATIO(&i_clk_ratio,	1, 1);
+		SH_CLK_SET_RATIO(&s_clk_ratio,	1, 4);
+		SH_CLK_SET_RATIO(&s1_clk_ratio,	1, 8);
+		SH_CLK_SET_RATIO(&s3_clk_ratio,	1, 4);
+		SH_CLK_SET_RATIO(&s4_clk_ratio,	1, 8);
+		SH_CLK_SET_RATIO(&p_clk_ratio,	1, 16);
+		SH_CLK_SET_RATIO(&g_clk_ratio,	1, 12);
+		if (mode & MD(2)) {
+			SH_CLK_SET_RATIO(&b_clk_ratio,		1, 16);
+			SH_CLK_SET_RATIO(&out_clk_ratio,	1, 16);
+		} else {
+			SH_CLK_SET_RATIO(&b_clk_ratio,		1, 12);
+			SH_CLK_SET_RATIO(&out_clk_ratio,	1, 12);
+		}
+	}
+
 	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 		ret = clk_register(main_clks[k]);
 
-- 
1.8.2.1

[PATCH 11/23] ARM: shmobile: r8a7778: add SDHI clock support

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7778.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c
index 5cc271e..b251e4d 100644
--- a/arch/arm/mach-shmobile/clock-r8a7778.c
+++ b/arch/arm/mach-shmobile/clock-r8a7778.c
@@ -103,12 +103,16 @@ static struct clk *main_clks[] = {
 };
 
 enum {
+	MSTP323, MSTP322, MSTP321,
 	MSTP114,
 	MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
 	MSTP016, MSTP015,
 	MSTP_NR };
 
 static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP323] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 23, 0), /* SDHI0 */
+	[MSTP322] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 22, 0), /* SDHI1 */
+	[MSTP321] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 21, 0), /* SDHI2 */
 	[MSTP114] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 14, 0), /* Ether */
 	[MSTP026] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 26, 0), /* SCIF0 */
 	[MSTP025] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 25, 0), /* SCIF1 */
@@ -122,6 +126,9 @@ static struct clk mstp_clks[MSTP_NR] = {
 
 static struct clk_lookup lookups[] = {
 	/* MSTP32 clocks */
+	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP323]), /* SDHI0 */
+	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP322]), /* SDHI1 */
+	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP321]), /* SDHI2 */
 	CLKDEV_DEV_ID("sh-eth",	&mstp_clks[MSTP114]), /* Ether */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */
-- 
1.8.2.1

[PATCH 12/23] ARM: shmobile: r8a7778: Register SDHI device

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

This patch adds SDHI register function which needs id number (= 0/1/2)

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  2 ++
 arch/arm/mach-shmobile/setup-r8a7778.c        | 24 ++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 951149e..b5173b3 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -18,6 +18,7 @@
 #ifndef __ASM_R8A7778_H__
 #define __ASM_R8A7778_H__
 
+#include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/sh_eth.h>
 
 extern void r8a7778_add_standard_devices(void);
@@ -28,5 +29,6 @@ extern void r8a7778_init_irq(void);
 extern void r8a7778_init_irq_dt(void);
 extern void r8a7778_clock_init(void);
 extern void r8a7778_init_irq_extpin(int irlm);
+extern void r8a7778_sdhi_init(int id, struct sh_mobile_sdhi_info *info);
 
 #endif /* __ASM_R8A7778_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index d6ee521..f5b2a57 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -102,6 +102,30 @@ void __init r8a7778_add_ether_device(struct sh_eth_plat_data *pdata)
 					  pdata, sizeof(*pdata));
 }
 
+/* SDHI */
+static struct resource sdhi_resources[] = {
+	/* SDHI0 */
+	DEFINE_RES_MEM(0xFFE4C000, 0x100),
+	DEFINE_RES_IRQ(gic_iid(0x77)),
+	/* SDHI1 */
+	DEFINE_RES_MEM(0xFFE4D000, 0x100),
+	DEFINE_RES_IRQ(gic_iid(0x78)),
+	/* SDHI2 */
+	DEFINE_RES_MEM(0xFFE4F000, 0x100),
+	DEFINE_RES_IRQ(gic_iid(0x76)),
+};
+
+void __init r8a7778_sdhi_init(int id,
+			      struct sh_mobile_sdhi_info *info)
+{
+	BUG_ON(id < 0 || id > 2);
+
+	platform_device_register_resndata(
+		&platform_bus, "sh_mobile_sdhi", id,
+		sdhi_resources + (2 * id), 2,
+		info, sizeof(*info));
+}
+
 void __init r8a7778_add_standard_devices(void)
 {
 	int i;
-- 
1.8.2.1

[PATCH 13/23] ARM: shmobile: remove ";" from SH_FIXED_RATIO_CLK*() macro

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/clock.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-shmobile/include/mach/clock.h b/arch/arm/mach-shmobile/include/mach/clock.h
index 76ac612..8902044 100644
--- a/arch/arm/mach-shmobile/include/mach/clock.h
+++ b/arch/arm/mach-shmobile/include/mach/clock.h
@@ -24,11 +24,11 @@ struct clk name = {			\
 }
 
 #define SH_FIXED_RATIO_CLK(name, p, r)		\
-static SH_FIXED_RATIO_CLKg(name, p, r);
+static SH_FIXED_RATIO_CLKg(name, p, r)
 
 #define SH_FIXED_RATIO_CLK_SET(name, p, m, d)	\
 	SH_CLK_RATIO(name, m, d);		\
-	SH_FIXED_RATIO_CLK(name, p, name);
+	SH_FIXED_RATIO_CLK(name, p, name)
 
 #define SH_CLK_SET_RATIO(p, m, d)	\
 {			\
-- 
1.8.2.1

[PATCH 14/23] ARM: shmobile: r8a7790: add main clock

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Almost all clock needs main clock which is basis clock on r8a7790.
This patch adds it, and, set its parent/ratio via MD pin.
It is based on v0.05 datasheet

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 161 ++++++++++++++++++++++++++++++++-
 1 file changed, 156 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index bad9bf2..850e47f 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -22,32 +22,113 @@
 #include <linux/kernel.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
+#include <mach/clock.h>
 #include <mach/common.h>
 
+/*
+ *   MD		EXTAL		PLL0	PLL1	PLL3
+ * 14 13 19	(MHz)		*1	*1
+ *---------------------------------------------------
+ * 0  0  0	15 x 1		x172/2	x208/2	x106
+ * 0  0  1	15 x 1		x172/2	x208/2	x88
+ * 0  1  0	20 x 1		x130/2	x156/2	x80
+ * 0  1  1	20 x 1		x130/2	x156/2	x66
+ * 1  0  0	26 / 2		x200/2	x240/2	x122
+ * 1  0  1	26 / 2		x200/2	x240/2	x102
+ * 1  1  0	30 / 2		x172/2	x208/2	x106
+ * 1  1  1	30 / 2		x172/2	x208/2	x88
+ *
+ * *1 :	Table 7.6 indicates VCO ouput (PLLx = VCO/2)
+ *	see "p1 / 2" on R8A7790_CLOCK_ROOT() below
+ */
+
+#define MD(nr)	(1 << nr)
+
 #define CPG_BASE 0xe6150000
 #define CPG_LEN 0x1000
 
 #define SMSTPCR2 0xe6150138
 #define SMSTPCR7 0xe615014c
 
+#define MODEMR		0xE6160060
+
 static struct clk_mapping cpg_mapping = {
 	.phys   = CPG_BASE,
 	.len    = CPG_LEN,
 };
 
-static struct clk p_clk = {
-	.rate	= 65000000, /* shortcut for now */
+static struct clk extal_clk = {
+	/* .rate will be updated on r8a7790_clock_init() */
 	.mapping	= &cpg_mapping,
 };
 
-static struct clk mp_clk = {
-	.rate	= 52000000,  /* shortcut for now */
-	.mapping	= &cpg_mapping,
+static struct sh_clk_ops followparent_clk_ops = {
+	.recalc	= followparent_recalc,
 };
 
+static struct clk main_clk = {
+	/* .parent will be set r8a73a4_clock_init */
+	.ops	= &followparent_clk_ops,
+};
+
+/*
+ * clock ratio of these clock will be updated
+ * on r8a7790_clock_init()
+ */
+SH_FIXED_RATIO_CLK_SET(pll1_clk,		main_clk,	1, 1);
+SH_FIXED_RATIO_CLK_SET(pll3_clk,		main_clk,	1, 1);
+SH_FIXED_RATIO_CLK_SET(lb_clk,			pll1_clk,	1, 1);
+SH_FIXED_RATIO_CLK_SET(qspi_clk,		pll1_clk,	1, 1);
+
+/* fixed ratio clock */
+SH_FIXED_RATIO_CLK_SET(extal_div2_clk,		extal_clk,	1, 2);
+SH_FIXED_RATIO_CLK_SET(cp_clk,			extal_clk,	1, 2);
+
+SH_FIXED_RATIO_CLK_SET(pll1_div2_clk,		pll1_clk,	1, 2);
+SH_FIXED_RATIO_CLK_SET(zg_clk,			pll1_clk,	1, 3);
+SH_FIXED_RATIO_CLK_SET(zx_clk,			pll1_clk,	1, 3);
+SH_FIXED_RATIO_CLK_SET(zs_clk,			pll1_clk,	1, 6);
+SH_FIXED_RATIO_CLK_SET(hp_clk,			pll1_clk,	1, 12);
+SH_FIXED_RATIO_CLK_SET(i_clk,			pll1_clk,	1, 2);
+SH_FIXED_RATIO_CLK_SET(b_clk,			pll1_clk,	1, 12);
+SH_FIXED_RATIO_CLK_SET(p_clk,			pll1_clk,	1, 24);
+SH_FIXED_RATIO_CLK_SET(cl_clk,			pll1_clk,	1, 48);
+SH_FIXED_RATIO_CLK_SET(m2_clk,			pll1_clk,	1, 8);
+SH_FIXED_RATIO_CLK_SET(imp_clk,			pll1_clk,	1, 4);
+SH_FIXED_RATIO_CLK_SET(rclk_clk,		pll1_clk,	1, (48 * 1024));
+SH_FIXED_RATIO_CLK_SET(oscclk_clk,		pll1_clk,	1, (12 * 1024));
+
+SH_FIXED_RATIO_CLK_SET(zb3_clk,			pll3_clk,	1, 4);
+SH_FIXED_RATIO_CLK_SET(zb3d2_clk,		pll3_clk,	1, 8);
+SH_FIXED_RATIO_CLK_SET(ddr_clk,			pll3_clk,	1, 8);
+SH_FIXED_RATIO_CLK_SET(mp_clk,			pll1_div2_clk,	1, 15);
+
 static struct clk *main_clks[] = {
+	&extal_clk,
+	&extal_div2_clk,
+	&main_clk,
+	&pll1_clk,
+	&pll1_div2_clk,
+	&pll3_clk,
+	&lb_clk,
+	&qspi_clk,
+	&zg_clk,
+	&zx_clk,
+	&zs_clk,
+	&hp_clk,
+	&i_clk,
+	&b_clk,
 	&p_clk,
+	&cl_clk,
+	&m2_clk,
+	&imp_clk,
+	&rclk_clk,
+	&oscclk_clk,
+	&zb3_clk,
+	&zb3d2_clk,
+	&ddr_clk,
 	&mp_clk,
+	&cp_clk,
 };
 
 enum { MSTP721, MSTP720,
@@ -64,6 +145,35 @@ static struct clk mstp_clks[MSTP_NR] = {
 };
 
 static struct clk_lookup lookups[] = {
+
+	/* main clocks */
+	CLKDEV_CON_ID("extal",		&extal_clk),
+	CLKDEV_CON_ID("extal_div2",	&extal_div2_clk),
+	CLKDEV_CON_ID("main",		&main_clk),
+	CLKDEV_CON_ID("pll1",		&pll1_clk),
+	CLKDEV_CON_ID("pll1_div2",	&pll1_div2_clk),
+	CLKDEV_CON_ID("pll3",		&pll3_clk),
+	CLKDEV_CON_ID("zg",		&zg_clk),
+	CLKDEV_CON_ID("zx",		&zx_clk),
+	CLKDEV_CON_ID("zs",		&zs_clk),
+	CLKDEV_CON_ID("hp",		&hp_clk),
+	CLKDEV_CON_ID("i",		&i_clk),
+	CLKDEV_CON_ID("b",		&b_clk),
+	CLKDEV_CON_ID("lb",		&lb_clk),
+	CLKDEV_CON_ID("p",		&p_clk),
+	CLKDEV_CON_ID("cl",		&cl_clk),
+	CLKDEV_CON_ID("m2",		&m2_clk),
+	CLKDEV_CON_ID("imp",		&imp_clk),
+	CLKDEV_CON_ID("rclk",		&rclk_clk),
+	CLKDEV_CON_ID("oscclk",		&oscclk_clk),
+	CLKDEV_CON_ID("zb3",		&zb3_clk),
+	CLKDEV_CON_ID("zb3d2",		&zb3d2_clk),
+	CLKDEV_CON_ID("ddr",		&ddr_clk),
+	CLKDEV_CON_ID("mp",		&mp_clk),
+	CLKDEV_CON_ID("qspi",		&qspi_clk),
+	CLKDEV_CON_ID("cp",		&cp_clk),
+
+	/* MSTP */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]),
@@ -74,10 +184,51 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP720]),
 };
 
+#define R8A7790_CLOCK_ROOT(e, m, p0, p1, p30, p31)		\
+	extal_clk.rate	= e * 1000 * 1000;			\
+	main_clk.parent	= m;					\
+	SH_CLK_SET_RATIO(&pll1_clk_ratio, p1 / 2, 1);		\
+	if (mode & MD(19))					\
+		SH_CLK_SET_RATIO(&pll3_clk_ratio, p31, 1);	\
+	else							\
+		SH_CLK_SET_RATIO(&pll3_clk_ratio, p30, 1)
+
+
 void __init r8a7790_clock_init(void)
 {
+	void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
+	u32 mode;
 	int k, ret = 0;
 
+	BUG_ON(!modemr);
+	mode = ioread32(modemr);
+	iounmap(modemr);
+
+	switch (mode & (MD(14) | MD(13))) {
+	case 0:
+		R8A7790_CLOCK_ROOT(15, &extal_clk, 172, 208, 106, 88);
+		break;
+	case MD(13):
+		R8A7790_CLOCK_ROOT(20, &extal_clk, 130, 156, 80, 66);
+		break;
+	case MD(14):
+		R8A7790_CLOCK_ROOT(26, &extal_div2_clk, 200, 240, 122, 102);
+		break;
+	case MD(13) | MD(14):
+		R8A7790_CLOCK_ROOT(30, &extal_div2_clk, 172, 208, 106, 88);
+		break;
+	}
+
+	if (mode & (MD(18)))
+		SH_CLK_SET_RATIO(&lb_clk_ratio, 1, 36);
+	else
+		SH_CLK_SET_RATIO(&lb_clk_ratio, 1, 24);
+
+	if ((mode & (MD(3) | MD(2) | MD(1))) = MD(2))
+		SH_CLK_SET_RATIO(&qspi_clk_ratio, 1, 16);
+	else
+		SH_CLK_SET_RATIO(&qspi_clk_ratio, 1, 20);
+
 	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 		ret = clk_register(main_clks[k]);
 
-- 
1.8.2.1

[PATCH 15/23] ARM: shmobile: r8a7790: add div4 clocks

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

DIV4 clocks control SD* core clocks.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index 850e47f..c85e643 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -51,6 +51,7 @@
 #define SMSTPCR7 0xe615014c
 
 #define MODEMR		0xE6160060
+#define SDCKCR		0xE6150074
 
 static struct clk_mapping cpg_mapping = {
 	.phys   = CPG_BASE,
@@ -131,6 +132,29 @@ static struct clk *main_clks[] = {
 	&cp_clk,
 };
 
+/* SDHI (DIV4) clock */
+static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18, 24, 0, 36, 48, 10 };
+
+static struct clk_div_mult_table div4_div_mult_table = {
+	.divisors = divisors,
+	.nr_divisors = ARRAY_SIZE(divisors),
+};
+
+static struct clk_div4_table div4_table = {
+	.div_mult_table = &div4_div_mult_table,
+};
+
+enum {
+	DIV4_SDH, DIV4_SD0, DIV4_SD1, DIV4_NR
+};
+
+struct clk div4_clks[DIV4_NR] = {
+	[DIV4_SDH] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 8, 0x0dff, CLK_ENABLE_ON_INIT),
+	[DIV4_SD0] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 4, 0x1de0, CLK_ENABLE_ON_INIT),
+	[DIV4_SD1] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 0, 0x1de0, CLK_ENABLE_ON_INIT),
+};
+
+/* MSTP */
 enum { MSTP721, MSTP720,
 	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP_NR };
 static struct clk mstp_clks[MSTP_NR] = {
@@ -173,6 +197,11 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("qspi",		&qspi_clk),
 	CLKDEV_CON_ID("cp",		&cp_clk),
 
+	/* DIV4 */
+	CLKDEV_CON_ID("sdh",		&div4_clks[DIV4_SDH]),
+	CLKDEV_CON_ID("sd0",		&div4_clks[DIV4_SD0]),
+	CLKDEV_CON_ID("sd1",		&div4_clks[DIV4_SD1]),
+
 	/* MSTP */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
@@ -233,6 +262,9 @@ void __init r8a7790_clock_init(void)
 		ret = clk_register(main_clks[k]);
 
 	if (!ret)
+		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+
+	if (!ret)
 		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-- 
1.8.2.1

[PATCH 16/23] ARM: shmobile: r8a7790: add div6 clocks

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

DIV6 clocks control SD*/MMC* core clocks.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index c85e643..a481003 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -52,6 +52,12 @@
 
 #define MODEMR		0xE6160060
 #define SDCKCR		0xE6150074
+#define SD2CKCR		0xE6150078
+#define SD3CKCR		0xE615007C
+#define MMC0CKCR	0xE6150240
+#define MMC1CKCR	0xE6150244
+#define SSPCKCR		0xE6150248
+#define SSPRSCKCR	0xE615024C
 
 static struct clk_mapping cpg_mapping = {
 	.phys   = CPG_BASE,
@@ -154,6 +160,23 @@ struct clk div4_clks[DIV4_NR] = {
 	[DIV4_SD1] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 0, 0x1de0, CLK_ENABLE_ON_INIT),
 };
 
+/* DIV6 clocks */
+enum {
+	DIV6_SD2, DIV6_SD3,
+	DIV6_MMC0, DIV6_MMC1,
+	DIV6_SSP, DIV6_SSPRS,
+	DIV6_NR
+};
+
+static struct clk div6_clks[DIV6_NR] = {
+	[DIV6_SD2]	= SH_CLK_DIV6(&pll1_div2_clk, SD2CKCR, 0),
+	[DIV6_SD3]	= SH_CLK_DIV6(&pll1_div2_clk, SD3CKCR, 0),
+	[DIV6_MMC0]	= SH_CLK_DIV6(&pll1_div2_clk, MMC0CKCR, 0),
+	[DIV6_MMC1]	= SH_CLK_DIV6(&pll1_div2_clk, MMC1CKCR, 0),
+	[DIV6_SSP]	= SH_CLK_DIV6(&pll1_div2_clk, SSPCKCR, 0),
+	[DIV6_SSPRS]	= SH_CLK_DIV6(&pll1_div2_clk, SSPRSCKCR, 0),
+};
+
 /* MSTP */
 enum { MSTP721, MSTP720,
 	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP_NR };
@@ -202,6 +225,14 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("sd0",		&div4_clks[DIV4_SD0]),
 	CLKDEV_CON_ID("sd1",		&div4_clks[DIV4_SD1]),
 
+	/* DIV6 */
+	CLKDEV_CON_ID("sd2",		&div6_clks[DIV6_SD2]),
+	CLKDEV_CON_ID("sd3",		&div6_clks[DIV6_SD3]),
+	CLKDEV_CON_ID("mmc0",		&div6_clks[DIV6_MMC0]),
+	CLKDEV_CON_ID("mmc1",		&div6_clks[DIV6_MMC1]),
+	CLKDEV_CON_ID("ssp",		&div6_clks[DIV6_SSP]),
+	CLKDEV_CON_ID("ssprs",		&div6_clks[DIV6_SSPRS]),
+
 	/* MSTP */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
@@ -265,6 +296,9 @@ void __init r8a7790_clock_init(void)
 		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
 
 	if (!ret)
+		ret = sh_clk_div6_register(div6_clks, DIV6_NR);
+
+	if (!ret)
 		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-- 
1.8.2.1

[PATCH 17/23] ARM: shmobile: r8a7790: Make private clock arrays static

[Simon Horman]

From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Both clock-r8a7740.c and clock-r8a7790.c define a div4_clks array as
non-static. Compiling support for both SoCs thus result in a symbol
redefinition. Fix it by defining the arrays as static.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index a481003..bedd20c 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -154,7 +154,7 @@ enum {
 	DIV4_SDH, DIV4_SD0, DIV4_SD1, DIV4_NR
 };
 
-struct clk div4_clks[DIV4_NR] = {
+static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_SDH] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 8, 0x0dff, CLK_ENABLE_ON_INIT),
 	[DIV4_SD0] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 4, 0x1de0, CLK_ENABLE_ON_INIT),
 	[DIV4_SD1] = SH_CLK_DIV4(&pll1_clk, SDCKCR, 0, 0x1de0, CLK_ENABLE_ON_INIT),
-- 
1.8.2.1

[PATCH 18/23] ARM: shmobile: r8a7790: add TPU PWM support

[Simon Horman]

From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index bedd20c..b393592 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -48,6 +48,7 @@
 #define CPG_LEN 0x1000
 
 #define SMSTPCR2 0xe6150138
+#define SMSTPCR3 0xe615013c
 #define SMSTPCR7 0xe615014c
 
 #define MODEMR		0xE6160060
@@ -178,11 +179,17 @@ static struct clk div6_clks[DIV6_NR] = {
 };
 
 /* MSTP */
-enum { MSTP721, MSTP720,
-	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP_NR };
+enum {
+	MSTP721, MSTP720,
+	MSTP304,
+	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202,
+	MSTP_NR
+};
+
 static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP721] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 21, 0), /* SCIF0 */
 	[MSTP720] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 20, 0), /* SCIF1 */
+	[MSTP304] = SH_CLK_MSTP32(&cp_clk, SMSTPCR3, 4, 0), /* TPU0 */
 	[MSTP216] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 16, 0), /* SCIFB2 */
 	[MSTP207] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 7, 0), /* SCIFB1 */
 	[MSTP206] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 6, 0), /* SCIFB0 */
-- 
1.8.2.1

[PATCH 19/23] ARM: shmobile: sh73a0: add support for adjusting CPU frequency

[Simon Horman]

From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

On SH73A0 the output of PLL0 is supplied to two dividers, feeding clock to
the CPU core and SGX. Lower CPU frequencies allow the use of lower supply
voltages and thus reduce power consumption.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-sh73a0.c | 95 ++++++++++++++++++++++++++++++++++-
 1 file changed, 93 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index 784fbaa..acb9e09 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -228,6 +228,11 @@ enum { DIV4_I, DIV4_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
 
 static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT),
+	/*
+	 * ZG clock is dividing PLL0 frequency to supply SGX. Make sure not to
+	 * exceed maximum frequencies of 201.5MHz for VDD_DVFS=1.175 and
+	 * 239.2MHz for VDD_DVFS=1.315V.
+	 */
 	[DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
 	[DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
 	[DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT),
@@ -252,6 +257,85 @@ static struct clk twd_clk = {
 	.ops = &twd_clk_ops,
 };
 
+static int (*div4_set_rate)(struct clk *clk, unsigned long rate);
+static unsigned long (*div4_recalc)(struct clk *clk);
+static long (*div4_round_rate)(struct clk *clk, unsigned long rate);
+
+static int zclk_set_rate(struct clk *clk, unsigned long rate)
+{
+	int ret;
+
+	if (!clk->parent || !__clk_get(clk->parent))
+		return -ENODEV;
+
+	if (readl(FRQCRB) & (1 << 31))
+		return -EBUSY;
+
+	if (rate = clk_get_rate(clk->parent)) {
+		/* 1:1 - switch off divider */
+		__raw_writel(__raw_readl(FRQCRB) & ~(1 << 28), FRQCRB);
+		/* nullify the divider to prepare for the next time */
+		ret = div4_set_rate(clk, rate / 2);
+		if (!ret)
+			ret = frqcr_kick();
+		if (ret > 0)
+			ret = 0;
+	} else {
+		/* Enable the divider */
+		__raw_writel(__raw_readl(FRQCRB) | (1 << 28), FRQCRB);
+
+		ret = frqcr_kick();
+		if (ret >= 0)
+			/*
+			 * set the divider - call the DIV4 method, it will kick
+			 * FRQCRB too
+			 */
+			ret = div4_set_rate(clk, rate);
+		if (ret < 0)
+			goto esetrate;
+	}
+
+esetrate:
+	__clk_put(clk->parent);
+	return ret;
+}
+
+static long zclk_round_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned long div_freq = div4_round_rate(clk, rate),
+		parent_freq = clk_get_rate(clk->parent);
+
+	if (rate > div_freq && abs(parent_freq - rate) < rate - div_freq)
+		return parent_freq;
+
+	return div_freq;
+}
+
+static unsigned long zclk_recalc(struct clk *clk)
+{
+	/*
+	 * Must recalculate frequencies in case PLL0 has been changed, even if
+	 * the divisor is unused ATM!
+	 */
+	unsigned long div_freq = div4_recalc(clk);
+
+	if (__raw_readl(FRQCRB) & (1 << 28))
+		return div_freq;
+
+	return clk_get_rate(clk->parent);
+}
+
+static void zclk_extend(void)
+{
+	/* We extend the DIV4 clock with a 1:1 pass-through case */
+	div4_set_rate = div4_clks[DIV4_Z].ops->set_rate;
+	div4_round_rate = div4_clks[DIV4_Z].ops->round_rate;
+	div4_recalc = div4_clks[DIV4_Z].ops->recalc;
+	div4_clks[DIV4_Z].ops->set_rate = zclk_set_rate;
+	div4_clks[DIV4_Z].ops->round_rate = zclk_round_rate;
+	div4_clks[DIV4_Z].ops->recalc = zclk_recalc;
+}
+
 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
 	DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
 	DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
@@ -450,7 +534,7 @@ static struct clk *late_main_clks[] = {
 };
 
 enum { MSTP001,
-	MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100,
+	MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP112, MSTP100,
 	MSTP219, MSTP218, MSTP217,
 	MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
 	MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322,
@@ -471,6 +555,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
 	[MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX0 */
 	[MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */
+	[MSTP112] = MSTP(&div4_clks[DIV4_ZG], SMSTPCR1, 12, 0), /* SGX */
 	[MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
 	[MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */
 	[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */
@@ -513,6 +598,9 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("r_clk", &r_clk),
 	CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */
 
+	/* DIV4 clocks */
+	CLKDEV_DEV_ID("cpufreq-cpu0", &div4_clks[DIV4_Z]),
+
 	/* DIV6 clocks */
 	CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
 	CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]),
@@ -604,8 +692,11 @@ void __init sh73a0_clock_init(void)
 	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 		ret = clk_register(main_clks[k]);
 
-	if (!ret)
+	if (!ret) {
 		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+		if (!ret)
+			zclk_extend();
+	}
 
 	if (!ret)
 		ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR);
-- 
1.8.2.1

[PATCH 20/23] ARM: shmobile: sh73a0: add CPUFreq support

[Simon Horman]

From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

This patch enables the use of the generic cpufreq-cpu0 driver on sh73a0.
Providing a regulator, a list of OPPs in DT, combined with a virtual
cpufreq-cpu0 platform device and a clock, attached to it is everything,
the cpufreq-cpu0 driver needs. The first sh73a0 platform, implementing
such CPUFreq support is kzm9g-reference.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Kconfig        | 2 ++
 arch/arm/mach-shmobile/setup-sh73a0.c | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 1a517e2..7cfb9d1 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -169,6 +169,8 @@ config MACH_KZM9D
 config MACH_KZM9G
 	bool "KZM-A9-GT board"
 	depends on ARCH_SH73A0
+	select ARCH_HAS_CPUFREQ
+	select ARCH_HAS_OPP
 	select ARCH_REQUIRE_GPIOLIB
 	select REGULATOR_FIXED_VOLTAGE if REGULATOR
 	select SND_SOC_AK4642 if SND_SIMPLE_CARD
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index fdf3894..ed93e01 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -1016,6 +1016,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = {
 
 void __init sh73a0_add_standard_devices_dt(void)
 {
+	struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, };
+
 	/* clocks are setup late during boot in the case of DT */
 	sh73a0_clock_init();
 
@@ -1023,6 +1025,9 @@ void __init sh73a0_add_standard_devices_dt(void)
 			     ARRAY_SIZE(sh73a0_devices_dt));
 	of_platform_populate(NULL, of_default_bus_match_table,
 			     sh73a0_auxdata_lookup, NULL);
+
+	/* Instantiate cpufreq-cpu0 */
+	platform_device_register_full(&devinfo);
 }
 
 static const char *sh73a0_boards_compat_dt[] __initdata = {
-- 
1.8.2.1

[PATCH 21/23] ARM: shmobile: sh73a0: Always use shmobile_setup_delay()

[Simon Horman]

From: Magnus Damm <damm@opensource.se>

Break out the function sh73a0_init_delay() that now
gets called both for the C version of the code and
the DT -reference boards. This way we handle both
cases in the same way.

Allows us to boot with TWD only in the kernel configuration
for C board code. TWD is not yet enabled in the case of
DT -reference - this due to a dependency on CCF.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-sh73a0.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index ed93e01..bea298e 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -982,11 +982,17 @@ void __init sh73a0_add_standard_devices(void)
 			    ARRAY_SIZE(sh73a0_late_devices));
 }
 
+void __init sh73a0_init_delay(void)
+{
+	shmobile_setup_delay(1196, 44, 46); /* Cortex-A9 @ 1196MHz */
+}
+
 /* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */
 void __init __weak sh73a0_register_twd(void) { }
 
 void __init sh73a0_earlytimer_init(void)
 {
+	sh73a0_init_delay();
 	sh73a0_clock_init();
 	shmobile_earlytimer_init();
 	sh73a0_register_twd();
@@ -1005,11 +1011,6 @@ void __init sh73a0_add_early_devices(void)
 
 #ifdef CONFIG_USE_OF
 
-void __init sh73a0_init_delay(void)
-{
-	shmobile_setup_delay(1196, 44, 46); /* Cortex-A9 @ 1196MHz */
-}
-
 static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = {
 	{},
 };
-- 
1.8.2.1

[PATCH 22/23] ARM: shmobile: sh73a0: do not overwrite all div4 clock operations

[Simon Horman]

From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

An earlier commit "ARM: shmobile: sh73a0: add support for adjusting CPU
frequency" intended to replace some clock operations only for the Z-clock,
instead it replaced them for all div4 clocks, since all div4 clocks share
the same copy of clock operations. Fix this by using a separate clock
operations structure for Z-clock.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-sh73a0.c | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index acb9e09..d05cf90 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -257,9 +257,8 @@ static struct clk twd_clk = {
 	.ops = &twd_clk_ops,
 };
 
-static int (*div4_set_rate)(struct clk *clk, unsigned long rate);
-static unsigned long (*div4_recalc)(struct clk *clk);
-static long (*div4_round_rate)(struct clk *clk, unsigned long rate);
+static struct sh_clk_ops zclk_ops;
+static const struct sh_clk_ops *div4_clk_ops;
 
 static int zclk_set_rate(struct clk *clk, unsigned long rate)
 {
@@ -275,7 +274,7 @@ static int zclk_set_rate(struct clk *clk, unsigned long rate)
 		/* 1:1 - switch off divider */
 		__raw_writel(__raw_readl(FRQCRB) & ~(1 << 28), FRQCRB);
 		/* nullify the divider to prepare for the next time */
-		ret = div4_set_rate(clk, rate / 2);
+		ret = div4_clk_ops->set_rate(clk, rate / 2);
 		if (!ret)
 			ret = frqcr_kick();
 		if (ret > 0)
@@ -290,7 +289,7 @@ static int zclk_set_rate(struct clk *clk, unsigned long rate)
 			 * set the divider - call the DIV4 method, it will kick
 			 * FRQCRB too
 			 */
-			ret = div4_set_rate(clk, rate);
+			ret = div4_clk_ops->set_rate(clk, rate);
 		if (ret < 0)
 			goto esetrate;
 	}
@@ -302,7 +301,7 @@ esetrate:
 
 static long zclk_round_rate(struct clk *clk, unsigned long rate)
 {
-	unsigned long div_freq = div4_round_rate(clk, rate),
+	unsigned long div_freq = div4_clk_ops->round_rate(clk, rate),
 		parent_freq = clk_get_rate(clk->parent);
 
 	if (rate > div_freq && abs(parent_freq - rate) < rate - div_freq)
@@ -317,7 +316,7 @@ static unsigned long zclk_recalc(struct clk *clk)
 	 * Must recalculate frequencies in case PLL0 has been changed, even if
 	 * the divisor is unused ATM!
 	 */
-	unsigned long div_freq = div4_recalc(clk);
+	unsigned long div_freq = div4_clk_ops->recalc(clk);
 
 	if (__raw_readl(FRQCRB) & (1 << 28))
 		return div_freq;
@@ -327,13 +326,16 @@ static unsigned long zclk_recalc(struct clk *clk)
 
 static void zclk_extend(void)
 {
+	div4_clk_ops = div4_clks[DIV4_Z].ops;
+
 	/* We extend the DIV4 clock with a 1:1 pass-through case */
-	div4_set_rate = div4_clks[DIV4_Z].ops->set_rate;
-	div4_round_rate = div4_clks[DIV4_Z].ops->round_rate;
-	div4_recalc = div4_clks[DIV4_Z].ops->recalc;
-	div4_clks[DIV4_Z].ops->set_rate = zclk_set_rate;
-	div4_clks[DIV4_Z].ops->round_rate = zclk_round_rate;
-	div4_clks[DIV4_Z].ops->recalc = zclk_recalc;
+	zclk_ops = *div4_clk_ops;
+
+	zclk_ops.set_rate = zclk_set_rate;
+	zclk_ops.round_rate = zclk_round_rate;
+	zclk_ops.recalc = zclk_recalc;
+
+	div4_clks[DIV4_Z].ops = &zclk_ops;
 }
 
 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
-- 
1.8.2.1

[PATCH 23/23] ARM: shmobile: sh73a0: div4 clocks must check the kick bit before changing rate

[Simon Horman]

From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

According to the datasheet, it is not allowed to change div4 clock rates
if an earlier rate change operation is still in progress, as indicated by
a set kick bit.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-sh73a0.c | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index d05cf90..d9fd033 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -257,7 +257,7 @@ static struct clk twd_clk = {
 	.ops = &twd_clk_ops,
 };
 
-static struct sh_clk_ops zclk_ops;
+static struct sh_clk_ops zclk_ops, kicker_ops;
 static const struct sh_clk_ops *div4_clk_ops;
 
 static int zclk_set_rate(struct clk *clk, unsigned long rate)
@@ -324,18 +324,32 @@ static unsigned long zclk_recalc(struct clk *clk)
 	return clk_get_rate(clk->parent);
 }
 
-static void zclk_extend(void)
+static int kicker_set_rate(struct clk *clk, unsigned long rate)
 {
-	div4_clk_ops = div4_clks[DIV4_Z].ops;
+	if (__raw_readl(FRQCRB) & (1 << 31))
+		return -EBUSY;
+
+	return div4_clk_ops->set_rate(clk, rate);
+}
+
+static void div4_clk_extend(void)
+{
+	int i;
+
+	div4_clk_ops = div4_clks[0].ops;
 
+	/* Add a kicker-busy check before changing the rate */
+	kicker_ops = *div4_clk_ops;
 	/* We extend the DIV4 clock with a 1:1 pass-through case */
 	zclk_ops = *div4_clk_ops;
 
+	kicker_ops.set_rate = kicker_set_rate;
 	zclk_ops.set_rate = zclk_set_rate;
 	zclk_ops.round_rate = zclk_round_rate;
 	zclk_ops.recalc = zclk_recalc;
 
-	div4_clks[DIV4_Z].ops = &zclk_ops;
+	for (i = 0; i < DIV4_NR; i++)
+		div4_clks[i].ops = i = DIV4_Z ? &zclk_ops : &kicker_ops;
 }
 
 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
@@ -697,7 +711,7 @@ void __init sh73a0_clock_init(void)
 	if (!ret) {
 		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
 		if (!ret)
-			zclk_extend();
+			div4_clk_extend();
 	}
 
 	if (!ret)
-- 
1.8.2.1

Re: [GIT PULL 00/23] Renesas ARM-based SoC updates for v3.11

[Simon Horman]

Apologies,

I thought I had testes this but I have discovered a build problem
relating to the absence of a clean-up patch. I will reshuffle this
pull request and the one for cleanups and repost.

On Thu, Jun 06, 2013 at 04:28:13PM +0900, Simon Horman wrote:
> Hi Olof, Hi Arnd,
> 
> The following changes since commit c7788792a5e7b0d5d7f96d0766b4cb6112d47d75:
> 
>   Linux 3.10-rc2 (2013-05-20 14:37:38 -0700)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-soc-for-v3.11
> 
> for you to fetch changes up to 022a815a9119270a485c4b00ea3dce4314605c35:
> 
>   ARM: shmobile: sh73a0: div4 clocks must check the kick bit before changing rate (2013-06-06 14:10:05 +0900)
> 
> ----------------------------------------------------------------
> Renesas ARM-based SoC updates for v3.11
> 
> * Increased clock coverage for r8a7740, r8a73a4, r8a7778 and r8a7790
> * Use fixed clock ratio for r8a7778
> * Always use shmobile_setup_delay for sh73a0
> * Add add CPUFreq support for sh73a0
> * Check kick bit before changing rate on sh73a0
> * Do not overwrite all div4 clock operations on sh73a0
> 
> A very small cleanup patch, "ARM: shmobile: remove ";" from
> SH_FIXED_RATIO_CLK*() macro", is included as it a dependency
> of r8a7790 clock changes.
> 
> ----------------------------------------------------------------
> Bastian Hecht (2):
>       ARM: shmobile: r8a7740: Add interim sh-eth device name to clocks list
>       ARM: shmobile: r8a7740: Add I2C DT clock names
> 
> Guennadi Liakhovetski (4):
>       ARM: shmobile: sh73a0: add support for adjusting CPU frequency
>       ARM: shmobile: sh73a0: add CPUFreq support
>       ARM: shmobile: sh73a0: do not overwrite all div4 clock operations
>       ARM: shmobile: sh73a0: div4 clocks must check the kick bit before changing rate
> 
> Kuninori Morimoto (12):
>       ARM: shmobile: r8a7778: fixup Ether setup code position
>       ARM: shmobile: r8a73a4: add main clock
>       ARM: shmobile: r8a73a4: add pll clocks
>       ARM: shmobile: r8a73a4: add div4 clocks
>       ARM: shmobile: r8a73a4: add div6 clocks
>       ARM: shmobile: r8a7778: use fixed ratio clock
>       ARM: shmobile: r8a7778: add SDHI clock support
>       ARM: shmobile: r8a7778: Register SDHI device
>       ARM: shmobile: remove ";" from SH_FIXED_RATIO_CLK*() macro
>       ARM: shmobile: r8a7790: add main clock
>       ARM: shmobile: r8a7790: add div4 clocks
>       ARM: shmobile: r8a7790: add div6 clocks
> 
> Laurent Pinchart (3):
>       ARM: shmobile: r8a7740: add TPU PWM support
>       ARM: shmobile: r8a7790: Make private clock arrays static
>       ARM: shmobile: r8a7790: add TPU PWM support
> 
> Magnus Damm (1):
>       ARM: shmobile: sh73a0: Always use shmobile_setup_delay()
> 
> Phil Edworthy (1):
>       ARM: shmobile: r8a7779: Add PCIe clocks
> 
>  arch/arm/mach-shmobile/Kconfig                |   2 +
>  arch/arm/mach-shmobile/clock-r8a73a4.c        | 375 ++++++++++++++++++++++++--
>  arch/arm/mach-shmobile/clock-r8a7740.c        |   7 +-
>  arch/arm/mach-shmobile/clock-r8a7778.c        | 156 ++++++++++-
>  arch/arm/mach-shmobile/clock-r8a7779.c        |   4 +-
>  arch/arm/mach-shmobile/clock-r8a7790.c        | 238 +++++++++++++++-
>  arch/arm/mach-shmobile/clock-sh73a0.c         | 111 +++++++-
>  arch/arm/mach-shmobile/include/mach/clock.h   |   4 +-
>  arch/arm/mach-shmobile/include/mach/r8a7778.h |   2 +
>  arch/arm/mach-shmobile/setup-r8a7778.c        |  52 +++-
>  arch/arm/mach-shmobile/setup-sh73a0.c         |  16 +-
>  11 files changed, 906 insertions(+), 61 deletions(-)
> 
> -- 
> 1.8.2.1
>