From: R Sricharan <r.sricharan@xxxxxx>
The DRA7xx is a high-performance, infotainment application device,
based on enhanced OMAP architecture integrated on a 28-nm technology.
DRA7xx family is composed of DRA75x and DRA74x devices.
Adding the DRA752 ES1.0 cpu revision detection support.
Signed-off-by: R Sricharan <r.sricharan@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
---
arch/arm/mach-omap1/include/mach/soc.h | 1 +
arch/arm/mach-omap2/id.c | 30 ++++++++++++++++++++++--
arch/arm/mach-omap2/soc.h | 39 ++++++++++++++++++++++++++++++++
3 files changed, 68 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-omap1/include/mach/soc.h b/arch/arm/mach-omap1/include/mach/soc.h
index 6cf9c1c..612bd1c 100644
--- a/arch/arm/mach-omap1/include/mach/soc.h
+++ b/arch/arm/mach-omap1/include/mach/soc.h
@@ -195,6 +195,7 @@ IS_OMAP_TYPE(1710, 0x1710)
#define cpu_is_omap34xx() 0
#define cpu_is_omap44xx() 0
#define soc_is_omap54xx() 0
+#define soc_is_dra7xx() 0
#define soc_is_am33xx() 0
#define cpu_class_is_omap1() 1
#define cpu_class_is_omap2() 0
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 2dc62a2..332ae95 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -61,7 +61,7 @@ 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()) {
+ } else if (soc_is_omap54xx() || soc_is_dra7xx()) {
val = omap_ctrl_readl(OMAP5XXX_CONTROL_STATUS);
val &= OMAP5_DEVICETYPE_MASK;
val >>= 6;
@@ -116,7 +116,7 @@ static u16 tap_prod_id;
void omap_get_die_id(struct omap_die_id *odi)
{
- if (cpu_is_omap44xx() || soc_is_omap54xx()) {
+ if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx()) {
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);
@@ -606,6 +606,32 @@ void __init omap5xxx_check_revision(void)
pr_info("%s %s\n", soc_name, soc_rev);
}
+void __init dra7xx_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 0xb990:
+ switch (rev) {
+ case 0:
+ default:
+ omap_revision = DRA752_REV_ES1_0;
+ }
+ break;
+ default:
+ /* Unknown. Default to latest silicon revision */
+ omap_revision = DRA752_REV_ES1_0;
+ }
+
+ pr_info("DRA%03x ES%d.%d\n", omap_rev() >> 16,
+ ((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 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
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index 8c616e4..0d242f1 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -8,6 +8,7 @@
* Written by Tony Lindgren <tony.lindgren@xxxxxxxxx>
*
* Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@xxxxxx>
+ * Added DRA7xxx specific defines - Sricharan R<r.sricharan@xxxxxx>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -105,6 +106,15 @@
# endif
#endif
+#ifdef CONFIG_SOC_DRA7XX
+# ifdef OMAP_NAME
+# undef MULTI_OMAP2
+# define MULTI_OMAP2
+# else
+# define OMAP_NAME DRA7XX
+# endif
+#endif
+
/*
* Omap device type i.e. EMU/HS/TST/GP/BAD
*/
@@ -145,6 +155,7 @@ static inline int soc_is_omap(void)
* cpu_is_omap446x(): True for OMAP4460
* cpu_is_omap447x(): True for OMAP4470
* soc_is_omap543x(): True for OMAP5430, OMAP5432
+ * soc_is_dra75x(): True for DRA752, DRA754, DRA756
*/
#define GET_OMAP_CLASS (omap_rev() & 0xff)
@@ -170,6 +181,12 @@ static inline int is_ti ##class (void) \
return (GET_TI_CLASS == (id)) ? 1 : 0; \
}
+#define IS_DRA_CLASS(class, id) \
+static inline int is_dra ##class(void) \
+{ \
+ return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
+}
+
#define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
#define IS_OMAP_SUBCLASS(subclass, id) \
@@ -190,6 +207,12 @@ static inline int is_am ##subclass (void) \
return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
}
+#define IS_DRA_SUBCLASS(subclass, id) \
+static inline int is_dra ##subclass(void) \
+{ \
+ return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
+}
+
IS_OMAP_CLASS(24xx, 0x24)
IS_OMAP_CLASS(34xx, 0x34)
IS_OMAP_CLASS(44xx, 0x44)
@@ -197,6 +220,7 @@ IS_AM_CLASS(35xx, 0x35)
IS_OMAP_CLASS(54xx, 0x54)
IS_AM_CLASS(33xx, 0x33)
IS_AM_CLASS(43xx, 0x43)
+IS_DRA_CLASS(7xx, 0x7)
IS_TI_CLASS(81xx, 0x81)
@@ -213,6 +237,8 @@ IS_TI_SUBCLASS(816x, 0x816)
IS_TI_SUBCLASS(814x, 0x814)
IS_AM_SUBCLASS(335x, 0x335)
IS_AM_SUBCLASS(437x, 0x437)
+IS_DRA_SUBCLASS(75x, 0x75)
+IS_DRA_SUBCLASS(74x, 0x74)
#define cpu_is_omap24xx() 0
#define cpu_is_omap242x() 0
@@ -233,6 +259,8 @@ IS_AM_SUBCLASS(437x, 0x437)
#define cpu_is_omap447x() 0
#define soc_is_omap54xx() 0
#define soc_is_omap543x() 0
+#define soc_is_dra7xx() 0
+#define soc_is_dra75x() 0
#if defined(MULTI_OMAP2)
# if defined(CONFIG_ARCH_OMAP2)
@@ -379,6 +407,13 @@ IS_OMAP_TYPE(3430, 0x3430)
# define soc_is_omap543x() is_omap543x()
#endif
+# if defined(CONFIG_SOC_DRA7XX)
+# undef soc_is_dra7xx
+# undef soc_is_dra75x
+# define soc_is_dra7xx() is_dra7xx()
+# define soc_is_dra75x() is_dra75x()
+#endif
+
/* Various silicon revisions for omap2 */
#define OMAP242X_CLASS 0x24200024
#define OMAP2420_REV_ES1_0 OMAP242X_CLASS
@@ -443,6 +478,9 @@ IS_OMAP_TYPE(3430, 0x3430)
#define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
#define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
+#define DRA7XX_CLASS 0x07000007
+#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
+
void omap2xxx_check_revision(void);
void omap3xxx_check_revision(void);
void omap4xxx_check_revision(void);
@@ -451,6 +489,7 @@ void omap3xxx_check_features(void);
void ti81xx_check_features(void);
void am33xx_check_features(void);
void omap4xxx_check_features(void);
+void dra7xx_check_revision(void);
/*
* Runtime detection of OMAP3 features
--
1.7.9.5
--
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