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Commit 222cb1bf authored by Linus Walleij's avatar Linus Walleij Committed by Mike Turquette
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clk: impd1: add pclk clocks 



The IM-PD1 PrimeCells all have pclk assignments though this clock
cannot be controlled, and we need to provide this as a dummy
clock for the PL061 GPIO driver to probe, so let's assign it to
all the cells on the board.

Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
parent 665bb114

drivers/clk/versatile/clk-impd1.c

+29 −7
Original line number Diff line number Diff line
@@ -20,6 +20,8 @@ 
#define IMPD1_LOCK	0x08



struct impd1_clk {

	char *pclkname;

	struct clk *pclk;

	char *vco1name;

	struct clk *vco1clk;

	char *vco2name;
@@ -31,7 +33,7 @@ struct impd1_clk { 
	struct clk *spiclk;

	char *scname;

	struct clk *scclk;

	struct clk_lookup *clks[6];

	struct clk_lookup *clks[15];

};



/* One entry for each connected IM-PD1 LM */
@@ -86,6 +88,7 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id) 
{

	struct impd1_clk *imc;

	struct clk *clk;

	struct clk *pclk;

	int i;



	if (id > 3) {
@@ -94,11 +97,18 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id) 
	}

	imc = &impd1_clks[id];



	/* Register the fixed rate PCLK */

	imc->pclkname = kasprintf(GFP_KERNEL, "lm%x-pclk", id);

	pclk = clk_register_fixed_rate(NULL, imc->pclkname, NULL,

				      CLK_IS_ROOT, 0);

	imc->pclk = pclk;



	imc->vco1name = kasprintf(GFP_KERNEL, "lm%x-vco1", id);

	clk = icst_clk_register(NULL, &impd1_icst1_desc, imc->vco1name, NULL,

				base);

	imc->vco1clk = clk;

	imc->clks[0] = clkdev_alloc(clk, NULL, "lm%x:01000", id);

	imc->clks[0] = clkdev_alloc(pclk, "apb_pclk", "lm%x:01000", id);

	imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:01000", id);



	/* VCO2 is also called "CLK2" */

	imc->vco2name = kasprintf(GFP_KERNEL, "lm%x-vco2", id);
@@ -107,28 +117,38 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id) 
	imc->vco2clk = clk;



	/* MMCI uses CLK2 right off */

	imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:00700", id);

	imc->clks[2] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00700", id);

	imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00700", id);



	/* UART reference clock divides CLK2 by a fixed factor 4 */

	imc->uartname = kasprintf(GFP_KERNEL, "lm%x-uartclk", id);

	clk = clk_register_fixed_factor(NULL, imc->uartname, imc->vco2name,

				   CLK_IGNORE_UNUSED, 1, 4);

	imc->uartclk = clk;

	imc->clks[2] = clkdev_alloc(clk, NULL, "lm%x:00100", id);

	imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00200", id);

	imc->clks[4] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00100", id);

	imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00100", id);

	imc->clks[6] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00200", id);

	imc->clks[7] = clkdev_alloc(clk, NULL, "lm%x:00200", id);



	/* SPI PL022 clock divides CLK2 by a fixed factor 64 */

	imc->spiname = kasprintf(GFP_KERNEL, "lm%x-spiclk", id);

	clk = clk_register_fixed_factor(NULL, imc->spiname, imc->vco2name,

				   CLK_IGNORE_UNUSED, 1, 64);

	imc->clks[4] = clkdev_alloc(clk, NULL, "lm%x:00300", id);

	imc->clks[8] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00300", id);

	imc->clks[9] = clkdev_alloc(clk, NULL, "lm%x:00300", id);



	/* The GPIO blocks and AACI have only PCLK */

	imc->clks[10] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00400", id);

	imc->clks[11] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00500", id);

	imc->clks[12] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00800", id);



	/* Smart Card clock divides CLK2 by a fixed factor 4 */

	imc->scname = kasprintf(GFP_KERNEL, "lm%x-scclk", id);

	clk = clk_register_fixed_factor(NULL, imc->scname, imc->vco2name,

				   CLK_IGNORE_UNUSED, 1, 4);

	imc->scclk = clk;

	imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00600", id);

	imc->clks[13] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00600", id);

	imc->clks[14] = clkdev_alloc(clk, NULL, "lm%x:00600", id);



	for (i = 0; i < ARRAY_SIZE(imc->clks); i++)

		clkdev_add(imc->clks[i]);
@@ -150,10 +170,12 @@ void integrator_impd1_clk_exit(unsigned int id) 
	clk_unregister(imc->uartclk);

	clk_unregister(imc->vco2clk);

	clk_unregister(imc->vco1clk);

	clk_unregister(imc->pclk);

	kfree(imc->scname);

	kfree(imc->spiname);

	kfree(imc->uartname);

	kfree(imc->vco2name);

	kfree(imc->vco1name);

	kfree(imc->pclkname);

}

EXPORT_SYMBOL_GPL(integrator_impd1_clk_exit);