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

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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: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2019-08-14 05:18:16 -07:00
parent c6e78d7019
commit d7f563db77
2 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/bus/ti-sysc.c
View File

@ -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;
}

1
include/linux/platform_data/ti-sysc.h
View File

@ -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)