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Merge branch 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/t…
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…mlind/linux-omap into next/soc

* 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: split omap2/3/4_check_revision function
  ARM: OMAP2+: Make cpu_rev static global variable
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Arnd Bergmann committed Feb 29, 2012
2 parents abf45ce + 5405520 commit b23f46c
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Showing 3 changed files with 92 additions and 110 deletions.
186 changes: 78 additions & 108 deletions arch/arm/mach-omap2/id.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@
#include "control.h"

static unsigned int omap_revision;

static const char *cpu_rev;
u32 omap_features;

unsigned int omap_rev(void)
Expand Down Expand Up @@ -112,7 +112,7 @@ void omap_get_die_id(struct omap_die_id *odi)
odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);
}

static void __init omap24xx_check_revision(void)
void __init omap2xxx_check_revision(void)
{
int i, j;
u32 idcode, prod_id;
Expand Down Expand Up @@ -166,13 +166,63 @@ static void __init omap24xx_check_revision(void)
pr_info("\n");
}

#define OMAP3_SHOW_FEATURE(feat) \
if (omap3_has_ ##feat()) \
printk(#feat" ");

static void __init omap3_cpuinfo(void)
{
const char *cpu_name;

/*
* OMAP3430 and OMAP3530 are assumed to be same.
*
* OMAP3525, OMAP3515 and OMAP3503 can be detected only based
* on available features. Upon detection, update the CPU id
* and CPU class bits.
*/
if (cpu_is_omap3630()) {
cpu_name = "OMAP3630";
} else if (cpu_is_omap3517()) {
/* AM35xx devices */
cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505";
} else if (cpu_is_ti816x()) {
cpu_name = "TI816X";
} else if (cpu_is_am335x()) {
cpu_name = "AM335X";
} else if (cpu_is_ti814x()) {
cpu_name = "TI814X";
} else if (omap3_has_iva() && omap3_has_sgx()) {
/* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
cpu_name = "OMAP3430/3530";
} else if (omap3_has_iva()) {
cpu_name = "OMAP3525";
} else if (omap3_has_sgx()) {
cpu_name = "OMAP3515";
} else {
cpu_name = "OMAP3503";
}

/* Print verbose information */
pr_info("%s ES%s (", cpu_name, cpu_rev);

OMAP3_SHOW_FEATURE(l2cache);
OMAP3_SHOW_FEATURE(iva);
OMAP3_SHOW_FEATURE(sgx);
OMAP3_SHOW_FEATURE(neon);
OMAP3_SHOW_FEATURE(isp);
OMAP3_SHOW_FEATURE(192mhz_clk);

printk(")\n");
}

#define OMAP3_CHECK_FEATURE(status,feat) \
if (((status & OMAP3_ ##feat## _MASK) \
>> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \
omap_features |= OMAP3_HAS_ ##feat; \
}

static void __init omap3_check_features(void)
void __init omap3xxx_check_features(void)
{
u32 status;

Expand All @@ -199,9 +249,11 @@ static void __init omap3_check_features(void)
* TODO: Get additional info (where applicable)
* e.g. Size of L2 cache.
*/

omap3_cpuinfo();
}

static void __init omap4_check_features(void)
void __init omap4xxx_check_features(void)
{
u32 si_type;

Expand All @@ -226,12 +278,13 @@ static void __init omap4_check_features(void)
}
}

static void __init ti81xx_check_features(void)
void __init ti81xx_check_features(void)
{
omap_features = OMAP3_HAS_NEON;
omap3_cpuinfo();
}

static void __init omap3_check_revision(const char **cpu_rev)
void __init omap3xxx_check_revision(void)
{
u32 cpuid, idcode;
u16 hawkeye;
Expand All @@ -245,7 +298,7 @@ static void __init omap3_check_revision(const char **cpu_rev)
cpuid = read_cpuid(CPUID_ID);
if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) {
omap_revision = OMAP3430_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
return;
}

Expand All @@ -266,26 +319,26 @@ static void __init omap3_check_revision(const char **cpu_rev)
case 0: /* Take care of early samples */
case 1:
omap_revision = OMAP3430_REV_ES2_0;
*cpu_rev = "2.0";
cpu_rev = "2.0";
break;
case 2:
omap_revision = OMAP3430_REV_ES2_1;
*cpu_rev = "2.1";
cpu_rev = "2.1";
break;
case 3:
omap_revision = OMAP3430_REV_ES3_0;
*cpu_rev = "3.0";
cpu_rev = "3.0";
break;
case 4:
omap_revision = OMAP3430_REV_ES3_1;
*cpu_rev = "3.1";
cpu_rev = "3.1";
break;
case 7:
/* FALLTHROUGH */
default:
/* Use the latest known revision as default */
omap_revision = OMAP3430_REV_ES3_1_2;
*cpu_rev = "3.1.2";
cpu_rev = "3.1.2";
}
break;
case 0xb868:
Expand All @@ -298,13 +351,13 @@ static void __init omap3_check_revision(const char **cpu_rev)
switch (rev) {
case 0:
omap_revision = OMAP3517_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
break;
case 1:
/* FALLTHROUGH */
default:
omap_revision = OMAP3517_REV_ES1_1;
*cpu_rev = "1.1";
cpu_rev = "1.1";
}
break;
case 0xb891:
Expand All @@ -313,65 +366,65 @@ static void __init omap3_check_revision(const char **cpu_rev)
switch(rev) {
case 0: /* Take care of early samples */
omap_revision = OMAP3630_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
break;
case 1:
omap_revision = OMAP3630_REV_ES1_1;
*cpu_rev = "1.1";
cpu_rev = "1.1";
break;
case 2:
/* FALLTHROUGH */
default:
omap_revision = OMAP3630_REV_ES1_2;
*cpu_rev = "1.2";
cpu_rev = "1.2";
}
break;
case 0xb81e:
switch (rev) {
case 0:
omap_revision = TI8168_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
break;
case 1:
/* FALLTHROUGH */
default:
omap_revision = TI8168_REV_ES1_1;
*cpu_rev = "1.1";
cpu_rev = "1.1";
break;
}
break;
case 0xb944:
omap_revision = AM335X_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
case 0xb8f2:
switch (rev) {
case 0:
/* FALLTHROUGH */
case 1:
omap_revision = TI8148_REV_ES1_0;
*cpu_rev = "1.0";
cpu_rev = "1.0";
break;
case 2:
omap_revision = TI8148_REV_ES2_0;
*cpu_rev = "2.0";
cpu_rev = "2.0";
break;
case 3:
/* FALLTHROUGH */
default:
omap_revision = TI8148_REV_ES2_1;
*cpu_rev = "2.1";
cpu_rev = "2.1";
break;
}
break;
default:
/* Unknown default to latest silicon rev as default */
omap_revision = OMAP3630_REV_ES1_2;
*cpu_rev = "1.2";
cpu_rev = "1.2";
pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n");
}
}

static void __init omap4_check_revision(void)
void __init omap4xxx_check_revision(void)
{
u32 idcode;
u16 hawkeye;
Expand Down Expand Up @@ -444,89 +497,6 @@ static void __init omap4_check_revision(void)
((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 0xf));
}

#define OMAP3_SHOW_FEATURE(feat) \
if (omap3_has_ ##feat()) \
printk(#feat" ");

static void __init omap3_cpuinfo(const char *cpu_rev)
{
const char *cpu_name;

/*
* OMAP3430 and OMAP3530 are assumed to be same.
*
* OMAP3525, OMAP3515 and OMAP3503 can be detected only based
* on available features. Upon detection, update the CPU id
* and CPU class bits.
*/
if (cpu_is_omap3630()) {
cpu_name = "OMAP3630";
} else if (cpu_is_omap3517()) {
/* AM35xx devices */
cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505";
} else if (cpu_is_ti816x()) {
cpu_name = "TI816X";
} else if (cpu_is_am335x()) {
cpu_name = "AM335X";
} else if (cpu_is_ti814x()) {
cpu_name = "TI814X";
} else if (omap3_has_iva() && omap3_has_sgx()) {
/* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
cpu_name = "OMAP3430/3530";
} else if (omap3_has_iva()) {
cpu_name = "OMAP3525";
} else if (omap3_has_sgx()) {
cpu_name = "OMAP3515";
} else {
cpu_name = "OMAP3503";
}

/* Print verbose information */
pr_info("%s ES%s (", cpu_name, cpu_rev);

OMAP3_SHOW_FEATURE(l2cache);
OMAP3_SHOW_FEATURE(iva);
OMAP3_SHOW_FEATURE(sgx);
OMAP3_SHOW_FEATURE(neon);
OMAP3_SHOW_FEATURE(isp);
OMAP3_SHOW_FEATURE(192mhz_clk);

printk(")\n");
}

/*
* Try to detect the exact revision of the omap we're running on
*/
void __init omap2_check_revision(void)
{
const char *cpu_rev;

/*
* At this point we have an idea about the processor revision set
* earlier with omap2_set_globals_tap().
*/
if (cpu_is_omap24xx()) {
omap24xx_check_revision();
} else if (cpu_is_omap34xx()) {
omap3_check_revision(&cpu_rev);

/* TI81XX doesn't have feature register */
if (!cpu_is_ti81xx())
omap3_check_features();
else
ti81xx_check_features();

omap3_cpuinfo(cpu_rev);
return;
} else if (cpu_is_omap44xx()) {
omap4_check_revision();
omap4_check_features();
return;
} else {
pr_err("OMAP revision unknown, please fix!\n");
}
}

/*
* 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
Expand Down
9 changes: 8 additions & 1 deletion arch/arm/mach-omap2/io.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -351,7 +351,6 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)

static void __init omap_common_init_early(void)
{
omap2_check_revision();
omap_init_consistent_dma_size();
}

Expand Down Expand Up @@ -392,6 +391,7 @@ static void __init omap_hwmod_init_postsetup(void)
void __init omap2420_init_early(void)
{
omap2_set_globals_242x();
omap2xxx_check_revision();
omap_common_init_early();
omap2xxx_voltagedomains_init();
omap242x_powerdomains_init();
Expand All @@ -406,6 +406,7 @@ void __init omap2420_init_early(void)
void __init omap2430_init_early(void)
{
omap2_set_globals_243x();
omap2xxx_check_revision();
omap_common_init_early();
omap2xxx_voltagedomains_init();
omap243x_powerdomains_init();
Expand All @@ -424,6 +425,8 @@ void __init omap2430_init_early(void)
void __init omap3_init_early(void)
{
omap2_set_globals_3xxx();
omap3xxx_check_revision();
omap3xxx_check_features();
omap_common_init_early();
omap3xxx_voltagedomains_init();
omap3xxx_powerdomains_init();
Expand Down Expand Up @@ -456,6 +459,8 @@ void __init am35xx_init_early(void)
void __init ti81xx_init_early(void)
{
omap2_set_globals_ti81xx();
omap3xxx_check_revision();
ti81xx_check_features();
omap_common_init_early();
omap3xxx_voltagedomains_init();
omap3xxx_powerdomains_init();
Expand All @@ -470,6 +475,8 @@ void __init ti81xx_init_early(void)
void __init omap4430_init_early(void)
{
omap2_set_globals_443x();
omap4xxx_check_revision();
omap4xxx_check_features();
omap_common_init_early();
omap44xx_voltagedomains_init();
omap44xx_powerdomains_init();
Expand Down
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