ARM: shmobile: r8a7790: add div6 clocks

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

@@ -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]),
@@ -264,6 +295,9 @@ void __init r8a7790_clock_init(void)
 	if (!ret)
 		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);