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ARM: mach-shmobile: sh7372 MSIOF clock support

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Add clock control support for sh7372 MSIOF hardware blocks.

No upstream sh7372 boards are making use of MSIOF0->2,
but the sh7372 hardware happens to come out of reset with
all MSIOF 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>
This commit is contained in:
Magnus Damm 2011-08-26 05:25:11 +00:00 committed by Paul Mundt
parent 6b4cb8ffe8
commit 7ceb6666f0
1 changed files with 9 additions and 3 deletions
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12
arch/arm/mach-shmobile/clock-sh7372.c
View file

@ -503,14 +503,14 @@ static struct clk *late_main_clks[] = {
&sh7372_fsidivb_clk,
};
enum { MSTP001,
enum { MSTP001, MSTP000,
MSTP131, MSTP130,
MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
MSTP118, MSTP117, MSTP116, MSTP113,
MSTP106, MSTP101, MSTP100,
MSTP223,
MSTP214, MSTP218, MSTP217, MSTP216,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP218, MSTP217, MSTP216, MSTP214, MSTP208, MSTP207,
MSTP206, MSTP205, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP407, MSTP406,
MSTP403, MSTP400,
@ -521,6 +521,7 @@ enum { MSTP001,
static struct clk mstp_clks[MSTP_NR] = {
[MSTP001] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 1, 0), /* IIC2 */
[MSTP000] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 0, 0), /* MSIOF0 */
[MSTP131] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 31, 0), /* VEU3 */
[MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */
[MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */
@ -540,8 +541,10 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
[MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
[MSTP214] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
[MSTP208] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 8, 0), /* MSIOF1 */
[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
[MSTP205] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 5, 0), /* MSIOF2 */
[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
[MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
[MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
@ -612,6 +615,7 @@ static struct clk_lookup lookups[] = {
/* MSTP32 clocks */
CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
CLKDEV_DEV_ID("spi_sh_msiof.0", &mstp_clks[MSTP000]), /* MSIOF0 */
CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[MSTP131]), /* VEU3 */
CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */
CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */
@ -633,8 +637,10 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */
CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */
CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), /* USB-DMAC0 */
CLKDEV_DEV_ID("spi_sh_msiof.1", &mstp_clks[MSTP208]), /* MSIOF1 */
CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
CLKDEV_DEV_ID("spi_sh_msiof.2", &mstp_clks[MSTP205]), /* MSIOF2 */
CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */