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ARM: tegra: Add Tegra114 powergate support

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Extend the list of power gates found on Tegra114. Note that there are
now holes in the list, so perhaps a simple array is no longer the best
data structure to represent it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Thierry Reding 2013-10-16 19:19:02 +02:00 committed by Stephen Warren
parent f0ea2e0bb8
commit bd6a9ddcb9
2 changed files with 50 additions and 2 deletions
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43
arch/arm/mach-tegra/powergate.c
View file

@ -45,6 +45,13 @@ static int tegra_num_cpu_domains;
static const u8 *tegra_cpu_domains;
static const u8 tegra30_cpu_domains[] = {
TEGRA_POWERGATE_CPU,
TEGRA_POWERGATE_CPU1,
TEGRA_POWERGATE_CPU2,
TEGRA_POWERGATE_CPU3,
};
static const u8 tegra114_cpu_domains[] = {
TEGRA_POWERGATE_CPU0,
TEGRA_POWERGATE_CPU1,
TEGRA_POWERGATE_CPU2,
@ -190,6 +197,11 @@ int __init tegra_powergate_init(void)
tegra_num_cpu_domains = 4;
tegra_cpu_domains = tegra30_cpu_domains;
break;
case TEGRA114:
tegra_num_powerdomains = 23;
tegra_num_cpu_domains = 4;
tegra_cpu_domains = tegra114_cpu_domains;
break;
default:
/* Unknown Tegra variant. Disable powergating */
tegra_num_powerdomains = 0;
@ -230,6 +242,27 @@ static const char * const powergate_name_t30[] = {
[TEGRA_POWERGATE_3D1] = "3d1",
};
static const char * const powergate_name_t114[] = {
[TEGRA_POWERGATE_CPU] = "cpu0",
[TEGRA_POWERGATE_3D] = "3d",
[TEGRA_POWERGATE_VENC] = "venc",
[TEGRA_POWERGATE_VDEC] = "vdec",
[TEGRA_POWERGATE_MPE] = "mpe",
[TEGRA_POWERGATE_HEG] = "heg",
[TEGRA_POWERGATE_CPU1] = "cpu1",
[TEGRA_POWERGATE_CPU2] = "cpu2",
[TEGRA_POWERGATE_CPU3] = "cpu3",
[TEGRA_POWERGATE_CELP] = "celp",
[TEGRA_POWERGATE_CPU0] = "cpu0",
[TEGRA_POWERGATE_C0NC] = "c0nc",
[TEGRA_POWERGATE_C1NC] = "c1nc",
[TEGRA_POWERGATE_DIS] = "dis",
[TEGRA_POWERGATE_DISB] = "disb",
[TEGRA_POWERGATE_XUSBA] = "xusba",
[TEGRA_POWERGATE_XUSBB] = "xusbb",
[TEGRA_POWERGATE_XUSBC] = "xusbc",
};
static int powergate_show(struct seq_file *s, void *data)
{
int i;
@ -237,9 +270,14 @@ static int powergate_show(struct seq_file *s, void *data)
seq_printf(s, " powergate powered\n");
seq_printf(s, "------------------\n");
for (i = 0; i < tegra_num_powerdomains; i++)
for (i = 0; i < tegra_num_powerdomains; i++) {
if (!powergate_name[i])
continue;
seq_printf(s, " %9s %7s\n", powergate_name[i],
tegra_powergate_is_powered(i) ? "yes" : "no");
}
return 0;
}
@ -266,6 +304,9 @@ int __init tegra_powergate_debugfs_init(void)
case TEGRA30:
powergate_name = powergate_name_t30;
break;
case TEGRA114:
powergate_name = powergate_name_t114;
break;
}
if (powergate_name) {

9
include/linux/tegra-powergate.h
View file

@ -34,8 +34,15 @@ struct clk;
#define TEGRA_POWERGATE_CPU3 11
#define TEGRA_POWERGATE_CELP 12
#define TEGRA_POWERGATE_3D1 13
#define TEGRA_POWERGATE_CPU0 14
#define TEGRA_POWERGATE_C0NC 15
#define TEGRA_POWERGATE_C1NC 16
#define TEGRA_POWERGATE_DIS 18
#define TEGRA_POWERGATE_DISB 19
#define TEGRA_POWERGATE_XUSBA 20
#define TEGRA_POWERGATE_XUSBB 21
#define TEGRA_POWERGATE_XUSBC 22
#define TEGRA_POWERGATE_CPU0 TEGRA_POWERGATE_CPU
#define TEGRA_POWERGATE_3D0 TEGRA_POWERGATE_3D
int tegra_powergate_is_powered(int id);