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| author | Magnus Damm <damm@opensource.se> | 2011-08-26 05:28:42 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-08-29 16:41:02 +0900 |
| commit | a408baea3cdd2a7b5ad3d70080dff454b8883f62 (patch) | |
| tree | d78d0a97774efb7aa02999e53acdecfd8b246230 /arch/arm/mach-shmobile | |
| parent | 7ceb6666f03bc691e692c8d14ea2a8f3fa879ec8 (diff) | |
| download | blackbird-obmc-linux-a408baea3cdd2a7b5ad3d70080dff454b8883f62.tar.gz blackbird-obmc-linux-a408baea3cdd2a7b5ad3d70080dff454b8883f62.zip | |
ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
Add clock control support for sh7372 CMT hardware blocks.
No upstream sh7372 boards are making use of CMT3 + CMT4,
but the sh7372 hardware happens to come out of reset with
all CMT MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.
This patch relies on the recently merged
794d78f drivers: sh: late disabling of clocks V2
to make sure the unused clocks get disabled as expected.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/arm/mach-shmobile')
| -rw-r--r-- | arch/arm/mach-shmobile/clock-sh7372.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 68092c18fbb7..c250e23ce373 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -513,7 +513,7 @@ enum { MSTP001, MSTP000, MSTP206, MSTP205, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312, MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP407, MSTP406, - MSTP403, MSTP400, + MSTP405, MSTP404, MSTP403, MSTP400, MSTP_NR }; #define MSTP(_parent, _reg, _bit, _flags) \ @@ -563,6 +563,8 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP410] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 10, 0), /* IIC4 */ [MSTP407] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 7, 0), /* USB-DMAC1 */ [MSTP406] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 6, 0), /* USB1 */ + [MSTP405] = MSTP(&r_clk, SMSTPCR4, 5, 0), /* CMT4 */ + [MSTP404] = MSTP(&r_clk, SMSTPCR4, 4, 0), /* CMT3 */ [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */ [MSTP400] = MSTP(&r_clk, SMSTPCR4, 0, 0), /* CMT2 */ }; @@ -663,6 +665,8 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("r8a66597_hcd.1", &mstp_clks[MSTP406]), /* USB1 */ CLKDEV_DEV_ID("r8a66597_udc.1", &mstp_clks[MSTP406]), /* USB1 */ CLKDEV_DEV_ID("renesas_usbhs.1", &mstp_clks[MSTP406]), /* USB1 */ + CLKDEV_DEV_ID("sh_cmt.4", &mstp_clks[MSTP405]), /* CMT4 */ + CLKDEV_DEV_ID("sh_cmt.3", &mstp_clks[MSTP404]), /* CMT3 */ CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */ CLKDEV_DEV_ID("sh_cmt.2", &mstp_clks[MSTP400]), /* CMT2 */ |
