diff options
| author | Rabeeh Khoury <rabeeh@marvell.com> | 2009-03-22 18:30:32 +0300 |
|---|---|---|
| committer | Nicolas Pitre <nico@cam.org> | 2009-06-08 21:04:58 +0400 |
| commit | e8b2b7ba1200de8e50788e358e2d945a0c0fcfad (patch) | |
| tree | db48240d16d267bca6b740fe401406f9838410e3 /arch/arm/mach-kirkwood/pcie.c | |
| parent | fb7b2d3f0dda3fbd711c191fd3b9496653e81ac7 (diff) | |
| download | linux-e8b2b7ba1200de8e50788e358e2d945a0c0fcfad.tar.xz | |
[ARM] Kirkwood: clock gating for unused peripherals
To save power:
1. Enabling clock gating of unused peripherals
2. PLL and PHY of the units are also disabled (when possible.
Signed-off-by: Rabeeh Khoury <rabeeh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Diffstat (limited to 'arch/arm/mach-kirkwood/pcie.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/pcie.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index 73fccacd1a73..d90b9aae308d 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -14,6 +14,7 @@ #include <asm/irq.h> #include <asm/mach/pci.h> #include <plat/pcie.h> +#include <mach/bridge-regs.h> #include "common.h" @@ -95,6 +96,7 @@ static struct pci_ops pcie_ops = { static int kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) { struct resource *res; + extern unsigned int kirkwood_clk_ctrl; /* * Generic PCIe unit setup. @@ -133,6 +135,8 @@ static int kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) sys->resource[2] = NULL; sys->io_offset = 0; + kirkwood_clk_ctrl |= CGC_PEX0; + return 1; } |