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| author | R Sricharan <r.sricharan@ti.com> | 2012-04-19 17:42:19 +0530 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2012-07-09 19:14:39 +0530 |
| commit | b13e80a8bfe442406495a2fc9e7cbb79d33df48a (patch) | |
| tree | 96158952517112c0fc77470af9e049a57453878d /arch/arm/mach-omap2 | |
| parent | b009366f285d03e69aeea5f8cc466782dd6f0004 (diff) | |
| download | linux-b13e80a8bfe442406495a2fc9e7cbb79d33df48a.tar.bz2 | |
ARM: OMAP5: id: Add cpu id for ES versions
Adding the OMAP5 ES1.0, 2.0 and OMAP5432 cpu revision
detection support.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/control.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 42 |
2 files changed, 45 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h index 295b39047a71..b8cdc8531b60 100644 --- a/arch/arm/mach-omap2/control.h +++ b/arch/arm/mach-omap2/control.h @@ -253,6 +253,10 @@ /* TI81XX CONTROL_DEVCONF register offsets */ #define TI81XX_CONTROL_DEVICE_ID (TI81XX_CONTROL_DEVCONF + 0x000) +/* OMAP54XX CONTROL STATUS register */ +#define OMAP5XXX_CONTROL_STATUS 0x134 +#define OMAP5_DEVICETYPE_MASK (0x7 << 6) + /* * REVISIT: This list of registers is not comprehensive - there are more * that should be added. diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 37eb95aaf2f6..40373db649aa 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -50,6 +50,11 @@ int omap_type(void) val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS); } else if (cpu_is_omap44xx()) { val = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STATUS); + } else if (soc_is_omap54xx()) { + val = omap_ctrl_readl(OMAP5XXX_CONTROL_STATUS); + val &= OMAP5_DEVICETYPE_MASK; + val >>= 6; + goto out; } else { pr_err("Cannot detect omap type!\n"); goto out; @@ -100,7 +105,7 @@ static u16 tap_prod_id; void omap_get_die_id(struct omap_die_id *odi) { - if (cpu_is_omap44xx()) { + if (cpu_is_omap44xx() || soc_is_omap54xx()) { odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_0); odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_1); odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_2); @@ -513,6 +518,41 @@ void __init omap4xxx_check_revision(void) ((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 0xf)); } +void __init omap5xxx_check_revision(void) +{ + u32 idcode; + u16 hawkeye; + u8 rev; + + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xff; + switch (hawkeye) { + case 0xb942: + switch (rev) { + case 0: + default: + omap_revision = OMAP5430_REV_ES1_0; + } + break; + + case 0xb998: + switch (rev) { + case 0: + default: + omap_revision = OMAP5432_REV_ES1_0; + } + break; + + default: + /* Unknown default to latest silicon rev as default*/ + omap_revision = OMAP5430_REV_ES1_0; + } + + pr_info("OMAP%04x ES%d.0\n", + omap_rev() >> 16, ((omap_rev() >> 12) & 0xf)); +} + /* * Set up things for map_io and processor detection later on. Gets called * pretty much first thing from board init. For multi-omap, this gets |