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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>
hifive-unleashed-5.1
R Sricharan 2012-04-19 17:42:19 +05:30 committed by Santosh Shilimkar
parent b009366f28
commit b13e80a8bf
3 changed files with 65 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-omap2/control.h
View File

@ -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.

42
arch/arm/mach-omap2/id.c
View File

@ -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

22
arch/arm/plat-omap/include/plat/cpu.h
View File

@ -9,7 +9,7 @@
*
* Written by Tony Lindgren <tony.lindgren@nokia.com>
*
* Added OMAP4 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
* Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
*
* 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
@ -70,6 +70,7 @@ unsigned int omap_rev(void);
* cpu_is_omap443x(): True for OMAP4430
* cpu_is_omap446x(): True for OMAP4460
* cpu_is_omap447x(): True for OMAP4470
* soc_is_omap543x(): True for OMAP5430, OMAP5432
*/
#define GET_OMAP_CLASS (omap_rev() & 0xff)
@ -122,6 +123,7 @@ IS_OMAP_CLASS(24xx, 0x24)
IS_OMAP_CLASS(34xx, 0x34)
IS_OMAP_CLASS(44xx, 0x44)
IS_AM_CLASS(35xx, 0x35)
IS_OMAP_CLASS(54xx, 0x54)
IS_AM_CLASS(33xx, 0x33)
IS_TI_CLASS(81xx, 0x81)
@ -133,6 +135,7 @@ IS_OMAP_SUBCLASS(363x, 0x363)
IS_OMAP_SUBCLASS(443x, 0x443)
IS_OMAP_SUBCLASS(446x, 0x446)
IS_OMAP_SUBCLASS(447x, 0x447)
IS_OMAP_SUBCLASS(543x, 0x543)
IS_TI_SUBCLASS(816x, 0x816)
IS_TI_SUBCLASS(814x, 0x814)
@ -156,6 +159,8 @@ IS_AM_SUBCLASS(335x, 0x335)
#define cpu_is_omap443x() 0
#define cpu_is_omap446x() 0
#define cpu_is_omap447x() 0
#define soc_is_omap54xx() 0
#define soc_is_omap543x() 0
#if defined(MULTI_OMAP1)
# if defined(CONFIG_ARCH_OMAP730)
@ -291,6 +296,7 @@ IS_OMAP_TYPE(3430, 0x3430)
#define cpu_is_omap2430() 0
#define cpu_is_omap3430() 0
#define cpu_is_omap3630() 0
#define soc_is_omap5430() 0
/*
* Whether we have MULTI_OMAP1 or not, we still need to distinguish
@ -371,11 +377,18 @@ IS_OMAP_TYPE(3430, 0x3430)
# define cpu_is_omap447x() is_omap447x()
# endif
# if defined(CONFIG_SOC_OMAP5)
# undef soc_is_omap54xx
# undef soc_is_omap543x
# define soc_is_omap54xx() is_omap54xx()
# define soc_is_omap543x() is_omap543x()
#endif
/* Macros to detect if we have OMAP1 or OMAP2 */
#define cpu_class_is_omap1() (cpu_is_omap7xx() || cpu_is_omap15xx() || \
cpu_is_omap16xx())
#define cpu_class_is_omap2() (cpu_is_omap24xx() || cpu_is_omap34xx() || \
cpu_is_omap44xx())
cpu_is_omap44xx() || soc_is_omap54xx())
/* Various silicon revisions for omap2 */
#define OMAP242X_CLASS 0x24200024
@ -428,9 +441,14 @@ IS_OMAP_TYPE(3430, 0x3430)
#define OMAP447X_CLASS 0x44700044
#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
#define OMAP54XX_CLASS 0x54000054
#define OMAP5430_REV_ES1_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
#define OMAP5432_REV_ES1_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
void omap2xxx_check_revision(void);
void omap3xxx_check_revision(void);
void omap4xxx_check_revision(void);
void omap5xxx_check_revision(void);
void omap3xxx_check_features(void);
void ti81xx_check_features(void);
void omap4xxx_check_features(void);