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ARM: OMAP2+: dra762: Add support for device package identification

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dra762 comes in two packages:
- ABZ: Pin compatible package with DRA742 and DDR@1333MHz
- ACD: High performance(OPP_PLUS) package with new IPs

Both the above packages uses the same IDCODE hence needs to
differentiate using package information in DIE_ID_2.
Add support for the same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Lokesh Vutla 2017-12-18 11:50:01 +05:30 committed by Tony Lindgren
parent a7cb4671e1
commit 987d13f6d7
2 changed files with 31 additions and 2 deletions
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17
arch/arm/mach-omap2/id.c
View File

@ -657,8 +657,11 @@ void __init dra7xxx_check_revision(void)
{
u32 idcode;
u16 hawkeye;
u8 rev;
u8 rev, package;
struct omap_die_id odi;
omap_get_die_id(&odi);
package = (odi.id_2 >> 16) & 0x3;
idcode = read_tap_reg(OMAP_TAP_IDCODE);
hawkeye = (idcode >> 12) & 0xffff;
rev = (idcode >> 28) & 0xff;
@ -667,7 +670,17 @@ void __init dra7xxx_check_revision(void)
switch (rev) {
case 0:
default:
omap_revision = DRA762_REV_ES1_0;
switch (package) {
case 0x2:
omap_revision = DRA762_ABZ_REV_ES1_0;
break;
case 0x3:
omap_revision = DRA762_ACD_REV_ES1_0;
break;
default:
omap_revision = DRA762_REV_ES1_0;
break;
}
break;
}
break;

16
arch/arm/mach-omap2/soc.h
View File

@ -143,6 +143,14 @@ static inline int is_dra ##subclass (void) \
return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
}
#define GET_DRA_PACKAGE (omap_rev() & 0xff)
#define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \
static inline int is_dra ##subclass ##_ ##package (void) \
{ \
return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \
}
IS_OMAP_CLASS(24xx, 0x24)
IS_OMAP_CLASS(34xx, 0x34)
IS_OMAP_CLASS(44xx, 0x44)
@ -168,6 +176,8 @@ IS_TI_SUBCLASS(814x, 0x814)
IS_AM_SUBCLASS(335x, 0x335)
IS_AM_SUBCLASS(437x, 0x437)
IS_DRA_SUBCLASS(76x, 0x76)
IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2)
IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3)
IS_DRA_SUBCLASS(75x, 0x75)
IS_DRA_SUBCLASS(72x, 0x72)
@ -317,10 +327,14 @@ IS_OMAP_TYPE(3430, 0x3430)
#if defined(CONFIG_SOC_DRA7XX)
#undef soc_is_dra7xx
#undef soc_is_dra76x
#undef soc_is_dra76x_abz
#undef soc_is_dra76x_acd
#undef soc_is_dra74x
#undef soc_is_dra72x
#define soc_is_dra7xx() is_dra7xx()
#define soc_is_dra76x() is_dra76x()
#define soc_is_dra76x_abz() is_dra76x_abz()
#define soc_is_dra76x_acd() is_dra76x_acd()
#define soc_is_dra74x() is_dra75x()
#define soc_is_dra72x() is_dra72x()
#endif
@ -391,6 +405,8 @@ IS_OMAP_TYPE(3430, 0x3430)
#define DRA7XX_CLASS 0x07000000
#define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8))
#define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0))
#define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0))
#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))