Commit d7f563db authored by Tony Lindgren's avatar Tony Lindgren
Browse files

bus: ti-sysc: Add module enable quirk for SGX on omap36xx 



Add module enable quirk for SGX needed on omap36xx.

Cc: Adam Ford <aford173@gmail.com>
Cc: Filip Matijević <filip.matijevic.pz@gmail.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: moaz korena <moaz@korena.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Cc: Philipp Rossak <embed3d@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent c6e78d70

drivers/bus/ti-sysc.c

+21 −0
Original line number Diff line number Diff line
@@ -73,6 +73,7 @@ static const char * const clock_names[SYSC_MAX_CLOCKS] = { 
 * @clk_enable_quirk: module specific clock enable quirk

 * @clk_disable_quirk: module specific clock disable quirk

 * @reset_done_quirk: module specific reset done quirk

 * @module_enable_quirk: module specific enable quirk

 */

struct sysc {

	struct device *dev;
@@ -98,6 +99,7 @@ struct sysc { 
	void (*clk_enable_quirk)(struct sysc *sysc);

	void (*clk_disable_quirk)(struct sysc *sysc);

	void (*reset_done_quirk)(struct sysc *sysc);

	void (*module_enable_quirk)(struct sysc *sysc);

};



static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
@@ -928,6 +930,9 @@ set_autoidle: 
		sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg);

	}



	if (ddata->module_enable_quirk)

		ddata->module_enable_quirk(ddata);



	return 0;

}
@@ -1241,6 +1246,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { 
		   SYSC_MODULE_QUIRK_I2C),

	SYSC_QUIRK("i2c", 0, 0, 0x10, 0x90, 0x5040000a, 0xfffff0f0,

		   SYSC_MODULE_QUIRK_I2C),

	SYSC_QUIRK("gpu", 0x50000000, 0x14, -1, -1, 0x00010201, 0xffffffff, 0),

	SYSC_QUIRK("gpu", 0x50000000, 0xfe00, 0xfe10, -1, 0x40000000 , 0xffffffff,

		   SYSC_MODULE_QUIRK_SGX),

	SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0,

		   SYSC_MODULE_QUIRK_WDT),
@@ -1258,6 +1266,7 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { 
	SYSC_QUIRK("dwc3", 0, 0, 0x10, -1, 0x500a0200, 0xffffffff, 0),

	SYSC_QUIRK("epwmss", 0, 0, 0x4, -1, 0x47400001, 0xffffffff, 0),

	SYSC_QUIRK("gpu", 0, 0x1fc00, 0x1fc10, -1, 0, 0, 0),

	SYSC_QUIRK("gpu", 0, 0xfe00, 0xfe10, -1, 0x40000000 , 0xffffffff, 0),

	SYSC_QUIRK("hsi", 0, 0, 0x10, 0x14, 0x50043101, 0xffffffff, 0),

	SYSC_QUIRK("iss", 0, 0, 0x10, -1, 0x40000101, 0xffffffff, 0),

	SYSC_QUIRK("lcdc", 0, 0, 0x54, -1, 0x4f201000, 0xffffffff, 0),
@@ -1409,6 +1418,15 @@ static void sysc_clk_disable_quirk_i2c(struct sysc *ddata) 
	sysc_clk_quirk_i2c(ddata, false);

}



/* 36xx SGX needs a quirk for to bypass OCP IPG interrupt logic */

static void sysc_module_enable_quirk_sgx(struct sysc *ddata)

{

	int offset = 0xff08;	/* OCP_DEBUG_CONFIG */

	u32 val = BIT(31);	/* THALIA_INT_BYPASS */



	sysc_write(ddata, offset, val);

}



/* Watchdog timer needs a disable sequence after reset */

static void sysc_reset_done_quirk_wdt(struct sysc *ddata)

{
@@ -1451,6 +1469,9 @@ static void sysc_init_module_quirks(struct sysc *ddata) 
		return;

	}



	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_SGX)

		ddata->module_enable_quirk = sysc_module_enable_quirk_sgx;



	if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_WDT)

		ddata->reset_done_quirk = sysc_reset_done_quirk_wdt;

}

include/linux/platform_data/ti-sysc.h

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ struct sysc_regbits { 
	s8 emufree_shift;

};



#define SYSC_MODULE_QUIRK_SGX		BIT(18)

#define SYSC_MODULE_QUIRK_HDQ1W		BIT(17)

#define SYSC_MODULE_QUIRK_I2C		BIT(16)

#define SYSC_MODULE_QUIRK_WDT		BIT(15)

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