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Diffstat (limited to 'arch/arm/mach-shmobile/clock-r8a7740.c')
-rw-r--r--arch/arm/mach-shmobile/clock-r8a7740.c310
1 files changed, 237 insertions, 73 deletions
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 26eea5f2105..50931e3c97c 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -22,6 +22,7 @@
#include <linux/io.h>
#include <linux/sh_clk.h>
#include <linux/clkdev.h>
+#include <mach/clock.h>
#include <mach/common.h>
#include <mach/r8a7740.h>
@@ -41,24 +42,32 @@
*/
/* CPG registers */
-#define FRQCRA 0xe6150000
-#define FRQCRB 0xe6150004
-#define FRQCRC 0xe61500e0
-#define PLLC01CR 0xe6150028
-
-#define SUBCKCR 0xe6150080
-#define USBCKCR 0xe615008c
-
-#define MSTPSR0 0xe6150030
-#define MSTPSR1 0xe6150038
-#define MSTPSR2 0xe6150040
-#define MSTPSR3 0xe6150048
-#define MSTPSR4 0xe615004c
-#define SMSTPCR0 0xe6150130
-#define SMSTPCR1 0xe6150134
-#define SMSTPCR2 0xe6150138
-#define SMSTPCR3 0xe615013c
-#define SMSTPCR4 0xe6150140
+#define FRQCRA IOMEM(0xe6150000)
+#define FRQCRB IOMEM(0xe6150004)
+#define VCLKCR1 IOMEM(0xE6150008)
+#define VCLKCR2 IOMEM(0xE615000c)
+#define FRQCRC IOMEM(0xe61500e0)
+#define FSIACKCR IOMEM(0xe6150018)
+#define PLLC01CR IOMEM(0xe6150028)
+
+#define SUBCKCR IOMEM(0xe6150080)
+#define USBCKCR IOMEM(0xe615008c)
+
+#define MSTPSR0 IOMEM(0xe6150030)
+#define MSTPSR1 IOMEM(0xe6150038)
+#define MSTPSR2 IOMEM(0xe6150040)
+#define MSTPSR3 IOMEM(0xe6150048)
+#define MSTPSR4 IOMEM(0xe615004c)
+#define FSIBCKCR IOMEM(0xe6150090)
+#define HDMICKCR IOMEM(0xe6150094)
+#define SMSTPCR0 IOMEM(0xe6150130)
+#define SMSTPCR1 IOMEM(0xe6150134)
+#define SMSTPCR2 IOMEM(0xe6150138)
+#define SMSTPCR3 IOMEM(0xe615013c)
+#define SMSTPCR4 IOMEM(0xe6150140)
+
+#define FSIDIVA IOMEM(0xFE1F8000)
+#define FSIDIVB IOMEM(0xFE1F8008)
/* Fixed 32 KHz root clock from EXTALR pin */
static struct clk extalr_clk = {
@@ -89,42 +98,13 @@ static struct clk dv_clk = {
.rate = 27000000,
};
-static unsigned long div_recalc(struct clk *clk)
-{
- return clk->parent->rate / (int)(clk->priv);
-}
+SH_CLK_RATIO(div2, 1, 2);
+SH_CLK_RATIO(div1k, 1, 1024);
-static struct sh_clk_ops div_clk_ops = {
- .recalc = div_recalc,
-};
-
-/* extal1 / 2 */
-static struct clk extal1_div2_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)2,
- .parent = &extal1_clk,
-};
-
-/* extal1 / 1024 */
-static struct clk extal1_div1024_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)1024,
- .parent = &extal1_clk,
-};
-
-/* extal1 / 2 / 1024 */
-static struct clk extal1_div2048_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)1024,
- .parent = &extal1_div2_clk,
-};
-
-/* extal2 / 2 */
-static struct clk extal2_div2_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)2,
- .parent = &extal2_clk,
-};
+SH_FIXED_RATIO_CLK(extal1_div2_clk, extal1_clk, div2);
+SH_FIXED_RATIO_CLK(extal1_div1024_clk, extal1_clk, div1k);
+SH_FIXED_RATIO_CLK(extal1_div2048_clk, extal1_div2_clk, div1k);
+SH_FIXED_RATIO_CLK(extal2_div2_clk, extal2_clk, div2);
static struct sh_clk_ops followparent_clk_ops = {
.recalc = followparent_recalc,
@@ -135,11 +115,7 @@ static struct clk system_clk = {
.ops = &followparent_clk_ops,
};
-static struct clk system_div2_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)2,
- .parent = &system_clk,
-};
+SH_FIXED_RATIO_CLK(system_div2_clk, system_clk, div2);
/* r_clk */
static struct clk r_clk = {
@@ -176,13 +152,25 @@ static struct clk pllc1_clk = {
};
/* PLLC1 / 2 */
-static struct clk pllc1_div2_clk = {
- .ops = &div_clk_ops,
- .priv = (void *)2,
- .parent = &pllc1_clk,
-};
+SH_FIXED_RATIO_CLK(pllc1_div2_clk, pllc1_clk, div2);
/* USB clock */
+/*
+ * USBCKCR is controlling usb24 clock
+ * bit[7] : parent clock
+ * bit[6] : clock divide rate
+ * And this bit[7] is used as a "usb24s" from other devices.
+ * (Video clock / Sub clock / SPU clock)
+ * You can controll this clock as a below.
+ *
+ * struct clk *usb24 = clk_get(dev, "usb24");
+ * struct clk *usb24s = clk_get(NULL, "usb24s");
+ * struct clk *system = clk_get(NULL, "system_clk");
+ * int rate = clk_get_rate(system);
+ *
+ * clk_set_parent(usb24s, system); // for bit[7]
+ * clk_set_rate(usb24, rate / 2); // for bit[6]
+ */
static struct clk *usb24s_parents[] = {
[0] = &system_clk,
[1] = &extal2_clk
@@ -271,7 +259,14 @@ static struct clk usb24_clk = {
.parent = &usb24s_clk,
};
-struct clk *main_clks[] = {
+/* External FSIACK/FSIBCK clock */
+static struct clk fsiack_clk = {
+};
+
+static struct clk fsibck_clk = {
+};
+
+static struct clk *main_clks[] = {
&extalr_clk,
&extal1_clk,
&extal2_clk,
@@ -288,8 +283,11 @@ struct clk *main_clks[] = {
&pllc1_div2_clk,
&usb24s_clk,
&usb24_clk,
+ &fsiack_clk,
+ &fsibck_clk,
};
+/* DIV4 clocks */
static void div4_kick(struct clk *clk)
{
unsigned long value;
@@ -319,7 +317,7 @@ enum {
DIV4_NR
};
-struct clk div4_clks[DIV4_NR] = {
+static struct clk div4_clks[DIV4_NR] = {
[DIV4_I] = SH_CLK_DIV4(&pllc1_clk, FRQCRA, 20, 0x6fff, CLK_ENABLE_ON_INIT),
[DIV4_ZG] = SH_CLK_DIV4(&pllc1_clk, FRQCRA, 16, 0x6fff, CLK_ENABLE_ON_INIT),
[DIV4_B] = SH_CLK_DIV4(&pllc1_clk, FRQCRA, 8, 0x6fff, CLK_ENABLE_ON_INIT),
@@ -333,6 +331,52 @@ struct clk div4_clks[DIV4_NR] = {
[DIV4_CP] = SH_CLK_DIV4(&pllc1_clk, FRQCRC, 0, 0x6fff, 0),
};
+/* DIV6 reparent */
+enum {
+ DIV6_HDMI,
+ DIV6_VCLK1, DIV6_VCLK2,
+ DIV6_FSIA, DIV6_FSIB,
+ DIV6_REPARENT_NR,
+};
+
+static struct clk *hdmi_parent[] = {
+ [0] = &pllc1_div2_clk,
+ [1] = &system_clk,
+ [2] = &dv_clk
+};
+
+static struct clk *vclk_parents[8] = {
+ [0] = &pllc1_div2_clk,
+ [2] = &dv_clk,
+ [3] = &usb24s_clk,
+ [4] = &extal1_div2_clk,
+ [5] = &extalr_clk,
+};
+
+static struct clk *fsia_parents[] = {
+ [0] = &pllc1_div2_clk,
+ [1] = &fsiack_clk, /* external clock */
+};
+
+static struct clk *fsib_parents[] = {
+ [0] = &pllc1_div2_clk,
+ [1] = &fsibck_clk, /* external clock */
+};
+
+static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
+ [DIV6_HDMI] = SH_CLK_DIV6_EXT(HDMICKCR, 0,
+ hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2),
+ [DIV6_VCLK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
+ vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
+ [DIV6_VCLK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
+ vclk_parents, ARRAY_SIZE(vclk_parents), 12, 3),
+ [DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
+ fsia_parents, ARRAY_SIZE(fsia_parents), 6, 2),
+ [DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
+ fsib_parents, ARRAY_SIZE(fsib_parents), 6, 2),
+};
+
+/* DIV6 clocks */
enum {
DIV6_SUB,
DIV6_NR
@@ -342,17 +386,82 @@ static struct clk div6_clks[DIV6_NR] = {
[DIV6_SUB] = SH_CLK_DIV6(&pllc1_div2_clk, SUBCKCR, 0),
};
+/* HDMI1/2 clock */
+static unsigned long hdmi12_recalc(struct clk *clk)
+{
+ u32 val = __raw_readl(HDMICKCR);
+ int shift = (int)clk->priv;
+
+ val >>= shift;
+ val &= 0x3;
+
+ return clk->parent->rate / (1 << val);
+};
+
+static int hdmi12_set_rate(struct clk *clk, unsigned long rate)
+{
+ u32 val, mask;
+ int i, shift;
+
+ for (i = 0; i < 3; i++)
+ if (rate == clk->parent->rate / (1 << i))
+ goto find;
+ return -ENODEV;
+
+find:
+ shift = (int)clk->priv;
+
+ val = __raw_readl(HDMICKCR);
+ mask = ~(0x3 << shift);
+ val = (val & mask) | i << shift;
+ __raw_writel(val, HDMICKCR);
+
+ return 0;
+};
+
+static struct sh_clk_ops hdmi12_clk_ops = {
+ .recalc = hdmi12_recalc,
+ .set_rate = hdmi12_set_rate,
+};
+
+static struct clk hdmi1_clk = {
+ .ops = &hdmi12_clk_ops,
+ .priv = (void *)9,
+ .parent = &div6_reparent_clks[DIV6_HDMI], /* late install */
+};
+
+static struct clk hdmi2_clk = {
+ .ops = &hdmi12_clk_ops,
+ .priv = (void *)11,
+ .parent = &div6_reparent_clks[DIV6_HDMI], /* late install */
+};
+
+static struct clk *late_main_clks[] = {
+ &hdmi1_clk,
+ &hdmi2_clk,
+};
+
+/* FSI DIV */
+enum { FSIDIV_A, FSIDIV_B, FSIDIV_REPARENT_NR };
+
+static struct clk fsidivs[] = {
+ [FSIDIV_A] = SH_CLK_FSIDIV(FSIDIVA, &div6_reparent_clks[DIV6_FSIA]),
+ [FSIDIV_B] = SH_CLK_FSIDIV(FSIDIVB, &div6_reparent_clks[DIV6_FSIB]),
+};
+
+/* MSTP */
enum {
- MSTP125,
+ MSTP128, MSTP127, MSTP125,
MSTP116, MSTP111, MSTP100, MSTP117,
MSTP230,
MSTP222,
+ MSTP218, MSTP217, MSTP216, MSTP214,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP329, MSTP328, MSTP323, MSTP320,
MSTP314, MSTP313, MSTP312,
- MSTP309,
+ MSTP309, MSTP304,
MSTP416, MSTP415, MSTP407, MSTP406,
@@ -360,6 +469,8 @@ enum {
};
static struct clk mstp_clks[MSTP_NR] = {
+ [MSTP128] = SH_CLK_MSTP32(&div4_clks[DIV4_S], SMSTPCR1, 28, 0), /* CEU21 */
+ [MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_S], SMSTPCR1, 27, 0), /* CEU20 */
[MSTP125] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
[MSTP117] = SH_CLK_MSTP32(&div4_clks[DIV4_B], SMSTPCR1, 17, 0), /* LCDC1 */
[MSTP116] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
@@ -368,6 +479,10 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP230] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 30, 0), /* SCIFA6 */
[MSTP222] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 22, 0), /* SCIFA7 */
+ [MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
+ [MSTP217] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
+ [MSTP216] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
+ [MSTP214] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
[MSTP206] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
[MSTP204] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
@@ -384,6 +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 */
@@ -408,6 +524,12 @@ static struct clk_lookup lookups[] = {
CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
CLKDEV_CON_ID("usb24s", &usb24s_clk),
+ CLKDEV_CON_ID("hdmi1", &hdmi1_clk),
+ CLKDEV_CON_ID("hdmi2", &hdmi2_clk),
+ CLKDEV_CON_ID("video1", &div6_reparent_clks[DIV6_VCLK1]),
+ CLKDEV_CON_ID("video2", &div6_reparent_clks[DIV6_VCLK2]),
+ CLKDEV_CON_ID("fsiack", &fsiack_clk),
+ CLKDEV_CON_ID("fsibck", &fsibck_clk),
/* DIV4 clocks */
CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
@@ -426,39 +548,71 @@ static struct clk_lookup lookups[] = {
/* MSTP32 clocks */
CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]),
- CLKDEV_DEV_ID("sh_tmu.1", &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_mobile_ceu.0", &mstp_clks[MSTP127]),
+ CLKDEV_DEV_ID("sh_mobile_ceu.1", &mstp_clks[MSTP128]),
CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]),
+ CLKDEV_DEV_ID("e6c80000.sci", &mstp_clks[MSTP200]),
CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]),
+ CLKDEV_DEV_ID("e6c70000.sci", &mstp_clks[MSTP201]),
CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]),
+ CLKDEV_DEV_ID("e6c60000.sci", &mstp_clks[MSTP202]),
CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
+ CLKDEV_DEV_ID("e6c50000.sci", &mstp_clks[MSTP203]),
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
+ CLKDEV_DEV_ID("e6c40000.sci", &mstp_clks[MSTP204]),
CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]),
+ CLKDEV_DEV_ID("e6c30000.sci", &mstp_clks[MSTP206]),
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]),
-
+ CLKDEV_DEV_ID("e6cb0000.sci", &mstp_clks[MSTP207]),
+ CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]),
+ CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]),
+ CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]),
+ CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP222]),
+ CLKDEV_DEV_ID("e6cd0000.sci", &mstp_clks[MSTP222]),
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP230]),
+ CLKDEV_DEV_ID("e6cc0000.sci", &mstp_clks[MSTP230]),
- CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]),
CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]),
+ CLKDEV_DEV_ID("fe1f0000.sound", &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.sd", &mstp_clks[MSTP314]),
CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]),
+ CLKDEV_DEV_ID("e6860000.sd", &mstp_clks[MSTP313]),
CLKDEV_DEV_ID("sh_mmcif", &mstp_clks[MSTP312]),
- CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP309]),
+ CLKDEV_DEV_ID("e6bd0000.mmc", &mstp_clks[MSTP312]),
+ CLKDEV_DEV_ID("r8a7740-gether", &mstp_clks[MSTP309]),
+ CLKDEV_DEV_ID("e9a00000.ethernet", &mstp_clks[MSTP309]),
+ CLKDEV_DEV_ID("renesas-tpu-pwm", &mstp_clks[MSTP304]),
+ CLKDEV_DEV_ID("e6600000.pwm", &mstp_clks[MSTP304]),
CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]),
+ CLKDEV_DEV_ID("e6870000.sd", &mstp_clks[MSTP415]),
/* ICK */
+ CLKDEV_ICK_ID("fck", "sh-tmu.1", &mstp_clks[MSTP111]),
+ CLKDEV_ICK_ID("fck", "sh-tmu.0", &mstp_clks[MSTP125]),
+ CLKDEV_ICK_ID("fck", "sh-cmt-48.1", &mstp_clks[MSTP329]),
CLKDEV_ICK_ID("host", "renesas_usbhs", &mstp_clks[MSTP416]),
CLKDEV_ICK_ID("func", "renesas_usbhs", &mstp_clks[MSTP407]),
CLKDEV_ICK_ID("phy", "renesas_usbhs", &mstp_clks[MSTP406]),
CLKDEV_ICK_ID("pci", "renesas_usbhs", &div4_clks[DIV4_USBP]),
CLKDEV_ICK_ID("usb24", "renesas_usbhs", &usb24_clk),
+ CLKDEV_ICK_ID("ick", "sh-mobile-hdmi", &div6_reparent_clks[DIV6_HDMI]),
+
+ CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]),
+ CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]),
+ CLKDEV_ICK_ID("diva", "sh_fsi2", &fsidivs[FSIDIV_A]),
+ CLKDEV_ICK_ID("divb", "sh_fsi2", &fsidivs[FSIDIV_B]),
+ CLKDEV_ICK_ID("xcka", "sh_fsi2", &fsiack_clk),
+ CLKDEV_ICK_ID("xckb", "sh_fsi2", &fsibck_clk),
};
void __init r8a7740_clock_init(u8 md_ck)
@@ -495,7 +649,17 @@ void __init r8a7740_clock_init(u8 md_ck)
ret = sh_clk_div6_register(div6_clks, DIV6_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_div6_reparent_register(div6_reparent_clks,
+ DIV6_REPARENT_NR);
+
+ if (!ret)
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
+
+ for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
+ ret = clk_register(late_main_clks[k]);
+
+ if (!ret)
+ ret = sh_clk_fsidiv_register(fsidivs, FSIDIV_REPARENT_NR);
clkdev_add_table(lookups, ARRAY_SIZE(lookups));