sh: clkfwk: Add MSTP bits to SH7785 clock framework.

This plugs in all of the MSTP functions in to the clock framework,
and hands them off to the platform devices that want them.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
index b7a32dd1b2db..cf042b53b3ae 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c
@@ -228,12 +228,75 @@ static struct clk *clks[] = {
 	&umem_clk,
 };
 
+static int mstpcr_clk_enable(struct clk *clk)
+{
+	__raw_writel(__raw_readl(clk->enable_reg) & ~(1 << clk->enable_bit),
+		     clk->enable_reg);
+	return 0;
+}
+
+static void mstpcr_clk_disable(struct clk *clk)
+{
+	__raw_writel(__raw_readl(clk->enable_reg) | (1 << clk->enable_bit),
+		     clk->enable_reg);
+}
+
+static struct clk_ops mstpcr_clk_ops = {
+	.enable		= mstpcr_clk_enable,
+	.disable	= mstpcr_clk_disable,
+	.recalc		= followparent_recalc,
+};
+
+#define MSTPCR0		0xffc80030
+#define MSTPCR1		0xffc80034
+
+#define CLK(_name, _id, _parent, _enable_reg,		\
+	    _enable_bit, _flags)			\
+{							\
+	.name		= _name,			\
+	.id		= _id,				\
+	.parent		= _parent,			\
+	.enable_reg	= (void __iomem *)_enable_reg,	\
+	.enable_bit	= _enable_bit,			\
+	.flags		= _flags,			\
+	.ops		= &mstpcr_clk_ops,		\
+}
+
+static struct clk mstpcr_clks[] = {
+	/* MSTPCR0 */
+	CLK("scif_fck", 5, &peripheral_clk, MSTPCR0, 29, 0),
+	CLK("scif_fck", 4, &peripheral_clk, MSTPCR0, 28, 0),
+	CLK("scif_fck", 3, &peripheral_clk, MSTPCR0, 27, 0),
+	CLK("scif_fck", 2, &peripheral_clk, MSTPCR0, 26, 0),
+	CLK("scif_fck", 1, &peripheral_clk, MSTPCR0, 25, 0),
+	CLK("scif_fck", 0, &peripheral_clk, MSTPCR0, 24, 0),
+	CLK("ssi_fck", 1, &peripheral_clk, MSTPCR0, 21, 0),
+	CLK("ssi_fck", 0, &peripheral_clk, MSTPCR0, 20, 0),
+	CLK("hac_fck", 1, &peripheral_clk, MSTPCR0, 17, 0),
+	CLK("hac_fck", 0, &peripheral_clk, MSTPCR0, 16, 0),
+	CLK("mmcif_fck", -1, &peripheral_clk, MSTPCR0, 13, 0),
+	CLK("flctl_fck", -1, &peripheral_clk, MSTPCR0, 12, 0),
+	CLK("tmu345_fck", -1, &peripheral_clk, MSTPCR0, 9, 0),
+	CLK("tmu012_fck", -1, &peripheral_clk, MSTPCR0, 8, 0),
+	CLK("siof_fck", -1, &peripheral_clk, MSTPCR0, 3, 0),
+	CLK("hspi_fck", -1, &peripheral_clk, MSTPCR0, 2, 0),
+
+	/* MSTPCR1 */
+	CLK("hudi_fck", -1, NULL, MSTPCR1, 19, 0),
+	CLK("ubc_fck", -1, NULL, MSTPCR1, 17, 0),
+	CLK("dmac_11_6_fck", -1, NULL, MSTPCR1, 5, 0),
+	CLK("dmac_5_0_fck", -1, NULL, MSTPCR1, 4, 0),
+	CLK("gdta_fck", -1, NULL, MSTPCR1, 0, 0),
+};
+
 int __init arch_clk_init(void)
 {
 	int i, ret = 0;
 
 	for (i = 0; i < ARRAY_SIZE(clks); i++)
 		ret |= clk_register(clks[i]);
+	for (i = 0; i < ARRAY_SIZE(mstpcr_clks); i++)
+		ret |= clk_register(&mstpcr_clks[i]);
 
 	return ret;
 }