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Commit 9e0afdf8 authored by Juergen Beisert's avatar Juergen Beisert Committed by Sascha Hauer
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MXC NFC: Add the clock resource to support NFC in i.MX35 



Signed-off-by: default avatarJuergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 060d20d3

arch/arm/mach-mx3/clock-imx35.c

+30 −0
Original line number Original line Diff line number Diff line
@@ -387,6 +387,35 @@ DEFINE_CLOCK(csi_clk, 0, CCM_CGR3, 0, get_rate_csi, NULL); 
DEFINE_CLOCK(iim_clk,    0, CCM_CGR3,  2, NULL, NULL);

DEFINE_CLOCK(iim_clk,    0, CCM_CGR3,  2, NULL, NULL);

DEFINE_CLOCK(gpu2d_clk,  0, CCM_CGR3,  4, NULL, NULL);

DEFINE_CLOCK(gpu2d_clk,  0, CCM_CGR3,  4, NULL, NULL);





static int clk_dummy_enable(struct clk *clk)

{

	return 0;

}



static void clk_dummy_disable(struct clk *clk)

{

}



static unsigned long get_rate_nfc(struct clk *clk)

{

	unsigned long div1;



	div1 = (__raw_readl(CCM_BASE + CCM_PDR4) >> 28) + 1;



	return get_rate_ahb(NULL) / div1;

}



/* NAND Controller: It seems it can't be disabled */

static struct clk nfc_clk = {

	.id		= 0,

	.enable_reg	= 0,

	.enable_shift	= 0,

	.get_rate	= get_rate_nfc,

	.set_rate	= NULL, /* set_rate_nfc, */

	.enable		= clk_dummy_enable,

	.disable	= clk_dummy_disable

};



#define _REGISTER_CLOCK(d, n, c)	\

#define _REGISTER_CLOCK(d, n, c)	\

	{				\

	{				\

		.dev_id = d,		\

		.dev_id = d,		\
@@ -449,6 +478,7 @@ static struct clk_lookup lookups[] = { 
	_REGISTER_CLOCK(NULL, "csi", csi_clk)

	_REGISTER_CLOCK(NULL, "csi", csi_clk)

	_REGISTER_CLOCK(NULL, "iim", iim_clk)

	_REGISTER_CLOCK(NULL, "iim", iim_clk)

	_REGISTER_CLOCK(NULL, "gpu2d", gpu2d_clk)

	_REGISTER_CLOCK(NULL, "gpu2d", gpu2d_clk)

	_REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk)

};

};





int __init mx35_clocks_init()

int __init mx35_clocks_init()