ARM: shmobile: r8a7740: add DMAEngine support for FSI
[pandora-kernel.git] / arch / arm / mach-shmobile / clock-r8a7740.c
index 26eea5f..39b1311 100644 (file)
 /* CPG registers */
 #define FRQCRA         0xe6150000
 #define FRQCRB         0xe6150004
+#define VCLKCR1                0xE6150008
+#define VCLKCR2                0xE615000c
 #define FRQCRC         0xe61500e0
+#define FSIACKCR       0xe6150018
 #define PLLC01CR       0xe6150028
 
 #define SUBCKCR                0xe6150080
@@ -54,6 +57,8 @@
 #define MSTPSR2                0xe6150040
 #define MSTPSR3                0xe6150048
 #define MSTPSR4                0xe615004c
+#define FSIBCKCR       0xe6150090
+#define HDMICKCR       0xe6150094
 #define SMSTPCR0       0xe6150130
 #define SMSTPCR1       0xe6150134
 #define SMSTPCR2       0xe6150138
@@ -271,6 +276,13 @@ static struct clk usb24_clk = {
        .parent         = &usb24s_clk,
 };
 
+/* External FSIACK/FSIBCK clock */
+static struct clk fsiack_clk = {
+};
+
+static struct clk fsibck_clk = {
+};
+
 struct clk *main_clks[] = {
        &extalr_clk,
        &extal1_clk,
@@ -288,6 +300,8 @@ struct clk *main_clks[] = {
        &pllc1_div2_clk,
        &usb24s_clk,
        &usb24_clk,
+       &fsiack_clk,
+       &fsibck_clk,
 };
 
 static void div4_kick(struct clk *clk)
@@ -313,6 +327,107 @@ static struct clk_div4_table div4_table = {
        .kick = div4_kick,
 };
 
+/* 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),
+};
+
+/* 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,
+};
+
+/* MSTP */
 enum {
        DIV4_I, DIV4_ZG, DIV4_B, DIV4_M1, DIV4_HP,
        DIV4_HPP, DIV4_USBP, DIV4_S, DIV4_ZB, DIV4_M3, DIV4_CP,
@@ -343,11 +458,12 @@ static struct clk div6_clks[DIV6_NR] = {
 };
 
 enum {
-       MSTP125,
+       MSTP128, MSTP127, MSTP125,
        MSTP116, MSTP111, MSTP100, MSTP117,
 
        MSTP230,
        MSTP222,
+       MSTP218, MSTP217, MSTP216,
        MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
 
        MSTP329, MSTP328, MSTP323, MSTP320,
@@ -360,6 +476,8 @@ 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 +486,9 @@ 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 */
        [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 */
@@ -408,6 +529,12 @@ 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]),
@@ -430,6 +557,8 @@ static struct clk_lookup lookups[] = {
        CLKDEV_DEV_ID("i2c-sh_mobile.0",        &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("sh-sci.3",               &mstp_clks[MSTP201]),
@@ -438,7 +567,9 @@ static struct clk_lookup lookups[] = {
        CLKDEV_DEV_ID("sh-sci.0",               &mstp_clks[MSTP204]),
        CLKDEV_DEV_ID("sh-sci.8",               &mstp_clks[MSTP206]),
        CLKDEV_DEV_ID("sh-sci.5",               &mstp_clks[MSTP207]),
-
+       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("sh-sci.6",               &mstp_clks[MSTP230]),
 
@@ -459,6 +590,10 @@ static struct clk_lookup lookups[] = {
        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]),
 };
 
 void __init r8a7740_clock_init(u8 md_ck)
@@ -494,9 +629,16 @@ void __init r8a7740_clock_init(u8 md_ck)
        if (!ret)
                ret = sh_clk_div6_register(div6_clks, DIV6_NR);
 
+       if (!ret)
+               ret = sh_clk_div6_reparent_register(div6_reparent_clks,
+                                                   DIV6_REPARENT_NR);
+
        if (!ret)
                ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
 
+       for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
+               ret = clk_register(late_main_clks[k]);
+
        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
        if (!ret)