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ARM: tegra: Add Tegra124 powergate support 

Three new gates have been added for Tegra124: SOR, VIC and IRAM. In
addition, PCIe and SATA gates are again supported, like on Tegra20 and
Tegra30.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Thierry Reding 2013-12-13 17:31:03 +01:00 committed by Stephen Warren
parent 201fc0f916
commit 9a71657966
2 changed files with 45 additions and 0 deletions
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42
arch/arm/mach-tegra/powergate.c
View File

@ -59,6 +59,13 @@ static const u8 tegra114_cpu_domains[] = {
TEGRA_POWERGATE_CPU3,
};
static const u8 tegra124_cpu_domains[] = {
TEGRA_POWERGATE_CPU0,
TEGRA_POWERGATE_CPU1,
TEGRA_POWERGATE_CPU2,
TEGRA_POWERGATE_CPU3,
};
static DEFINE_SPINLOCK(tegra_powergate_lock);
static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
@ -206,6 +213,11 @@ int __init tegra_powergate_init(void)
tegra_num_cpu_domains = 4;
tegra_cpu_domains = tegra114_cpu_domains;
break;
case TEGRA124:
tegra_num_powerdomains = 25;
tegra_num_cpu_domains = 4;
tegra_cpu_domains = tegra124_cpu_domains;
break;
default:
/* Unknown Tegra variant. Disable powergating */
tegra_num_powerdomains = 0;
@ -267,6 +279,33 @@ static const char * const powergate_name_t114[] = {
[TEGRA_POWERGATE_XUSBC] = "xusbc",
};
static const char * const powergate_name_t124[] = {
[TEGRA_POWERGATE_CPU] = "crail",
[TEGRA_POWERGATE_3D] = "3d",
[TEGRA_POWERGATE_VENC] = "venc",
[TEGRA_POWERGATE_PCIE] = "pcie",
[TEGRA_POWERGATE_VDEC] = "vdec",
[TEGRA_POWERGATE_L2] = "l2",
[TEGRA_POWERGATE_MPE] = "mpe",
[TEGRA_POWERGATE_HEG] = "heg",
[TEGRA_POWERGATE_SATA] = "sata",
[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_SOR] = "sor",
[TEGRA_POWERGATE_DIS] = "dis",
[TEGRA_POWERGATE_DISB] = "disb",
[TEGRA_POWERGATE_XUSBA] = "xusba",
[TEGRA_POWERGATE_XUSBB] = "xusbb",
[TEGRA_POWERGATE_XUSBC] = "xusbc",
[TEGRA_POWERGATE_VIC] = "vic",
[TEGRA_POWERGATE_IRAM] = "iram",
};
static int powergate_show(struct seq_file *s, void *data)
{
int i;
@ -311,6 +350,9 @@ int __init tegra_powergate_debugfs_init(void)
case TEGRA114:
powergate_name = powergate_name_t114;
break;
case TEGRA124:
powergate_name = powergate_name_t124;
break;
}
if (powergate_name) {

3
include/linux/tegra-powergate.h
View File

@ -38,11 +38,14 @@ struct reset_control;
#define TEGRA_POWERGATE_CPU0 14
#define TEGRA_POWERGATE_C0NC 15
#define TEGRA_POWERGATE_C1NC 16
#define TEGRA_POWERGATE_SOR 17
#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_VIC 23
#define TEGRA_POWERGATE_IRAM 24
#define TEGRA_POWERGATE_3D0 TEGRA_POWERGATE_3D