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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2017-12-18 07:20:01 +0100 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-12-21 16:04:10 +0100 |
| commit | 987d13f6d7740a616e8905e6a7b35af28c63b5a4 (patch) | |
| tree | 81599190a0967c13fbb9b72918ec8b3e3f555781 /arch/arm/mach-omap2/id.c | |
| parent | ARM: OMAP2+: Drop unused legacy data for prcm_reg_id and module_bit (diff) | |
| download | linux-987d13f6d7740a616e8905e6a7b35af28c63b5a4.tar.xz linux-987d13f6d7740a616e8905e6a7b35af28c63b5a4.zip | |
ARM: OMAP2+: dra762: Add support for device package identification
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>
Diffstat (limited to 'arch/arm/mach-omap2/id.c')
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index df2c29edbbcd..68ba5f472f6b 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -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; |