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sh: Add sh7724 notifier for R-standby save/restore
Make use of the recently added notifier chains for sh7724 r-standby register save/restore handling. At this point only the BSC and INTC are handled. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm
Paul Mundt
parent
49f42644fd
commit
da14909eb0
@ -20,6 +20,8 @@
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#include <linux/uio_driver.h>
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#include <linux/sh_timer.h>
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#include <linux/io.h>
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#include <linux/notifier.h>
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#include <asm/suspend.h>
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#include <asm/clock.h>
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#include <asm/mmzone.h>
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#include <cpu/sh7724.h>
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@ -827,3 +829,168 @@ void __init plat_irq_setup(void)
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{
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register_intc_controller(&intc_desc);
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}
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static struct {
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/* BSC */
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unsigned long mmselr;
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unsigned long cs0bcr;
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unsigned long cs4bcr;
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unsigned long cs5abcr;
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unsigned long cs5bbcr;
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unsigned long cs6abcr;
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unsigned long cs6bbcr;
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unsigned long cs4wcr;
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unsigned long cs5awcr;
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unsigned long cs5bwcr;
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unsigned long cs6awcr;
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unsigned long cs6bwcr;
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/* INTC */
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unsigned short ipra;
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unsigned short iprb;
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unsigned short iprc;
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unsigned short iprd;
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unsigned short ipre;
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unsigned short iprf;
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unsigned short iprg;
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unsigned short iprh;
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unsigned short ipri;
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unsigned short iprj;
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unsigned short iprk;
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unsigned short iprl;
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unsigned char imr0;
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unsigned char imr1;
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unsigned char imr2;
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unsigned char imr3;
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unsigned char imr4;
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unsigned char imr5;
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unsigned char imr6;
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unsigned char imr7;
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unsigned char imr8;
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unsigned char imr9;
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unsigned char imr10;
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unsigned char imr11;
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unsigned char imr12;
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} sh7724_rstandby_state;
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static int sh7724_pre_sleep_notifier_call(struct notifier_block *nb,
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unsigned long flags, void *unused)
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{
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if (!(flags & SUSP_SH_RSTANDBY))
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return NOTIFY_DONE;
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/* BCR */
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sh7724_rstandby_state.mmselr = __raw_readl(0xff800020); /* MMSELR */
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sh7724_rstandby_state.mmselr |= 0xa5a50000;
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sh7724_rstandby_state.cs0bcr = __raw_readl(0xfec10004); /* CS0BCR */
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sh7724_rstandby_state.cs4bcr = __raw_readl(0xfec10010); /* CS4BCR */
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sh7724_rstandby_state.cs5abcr = __raw_readl(0xfec10014); /* CS5ABCR */
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sh7724_rstandby_state.cs5bbcr = __raw_readl(0xfec10018); /* CS5BBCR */
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sh7724_rstandby_state.cs6abcr = __raw_readl(0xfec1001c); /* CS6ABCR */
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sh7724_rstandby_state.cs6bbcr = __raw_readl(0xfec10020); /* CS6BBCR */
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sh7724_rstandby_state.cs4wcr = __raw_readl(0xfec10030); /* CS4WCR */
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sh7724_rstandby_state.cs5awcr = __raw_readl(0xfec10034); /* CS5AWCR */
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sh7724_rstandby_state.cs5bwcr = __raw_readl(0xfec10038); /* CS5BWCR */
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sh7724_rstandby_state.cs6awcr = __raw_readl(0xfec1003c); /* CS6AWCR */
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sh7724_rstandby_state.cs6bwcr = __raw_readl(0xfec10040); /* CS6BWCR */
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/* INTC */
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sh7724_rstandby_state.ipra = __raw_readw(0xa4080000); /* IPRA */
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sh7724_rstandby_state.iprb = __raw_readw(0xa4080004); /* IPRB */
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sh7724_rstandby_state.iprc = __raw_readw(0xa4080008); /* IPRC */
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sh7724_rstandby_state.iprd = __raw_readw(0xa408000c); /* IPRD */
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sh7724_rstandby_state.ipre = __raw_readw(0xa4080010); /* IPRE */
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sh7724_rstandby_state.iprf = __raw_readw(0xa4080014); /* IPRF */
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sh7724_rstandby_state.iprg = __raw_readw(0xa4080018); /* IPRG */
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sh7724_rstandby_state.iprh = __raw_readw(0xa408001c); /* IPRH */
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sh7724_rstandby_state.ipri = __raw_readw(0xa4080020); /* IPRI */
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sh7724_rstandby_state.iprj = __raw_readw(0xa4080024); /* IPRJ */
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sh7724_rstandby_state.iprk = __raw_readw(0xa4080028); /* IPRK */
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sh7724_rstandby_state.iprl = __raw_readw(0xa408002c); /* IPRL */
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sh7724_rstandby_state.imr0 = __raw_readb(0xa4080080); /* IMR0 */
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sh7724_rstandby_state.imr1 = __raw_readb(0xa4080084); /* IMR1 */
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sh7724_rstandby_state.imr2 = __raw_readb(0xa4080088); /* IMR2 */
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sh7724_rstandby_state.imr3 = __raw_readb(0xa408008c); /* IMR3 */
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sh7724_rstandby_state.imr4 = __raw_readb(0xa4080090); /* IMR4 */
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sh7724_rstandby_state.imr5 = __raw_readb(0xa4080094); /* IMR5 */
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sh7724_rstandby_state.imr6 = __raw_readb(0xa4080098); /* IMR6 */
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sh7724_rstandby_state.imr7 = __raw_readb(0xa408009c); /* IMR7 */
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sh7724_rstandby_state.imr8 = __raw_readb(0xa40800a0); /* IMR8 */
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sh7724_rstandby_state.imr9 = __raw_readb(0xa40800a4); /* IMR9 */
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sh7724_rstandby_state.imr10 = __raw_readb(0xa40800a8); /* IMR10 */
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sh7724_rstandby_state.imr11 = __raw_readb(0xa40800ac); /* IMR11 */
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sh7724_rstandby_state.imr12 = __raw_readb(0xa40800b0); /* IMR12 */
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return NOTIFY_DONE;
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}
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static int sh7724_post_sleep_notifier_call(struct notifier_block *nb,
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unsigned long flags, void *unused)
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{
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if (!(flags & SUSP_SH_RSTANDBY))
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return NOTIFY_DONE;
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/* BCR */
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__raw_writel(sh7724_rstandby_state.mmselr, 0xff800020); /* MMSELR */
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__raw_writel(sh7724_rstandby_state.cs0bcr, 0xfec10004); /* CS0BCR */
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__raw_writel(sh7724_rstandby_state.cs4bcr, 0xfec10010); /* CS4BCR */
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__raw_writel(sh7724_rstandby_state.cs5abcr, 0xfec10014); /* CS5ABCR */
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__raw_writel(sh7724_rstandby_state.cs5bbcr, 0xfec10018); /* CS5BBCR */
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__raw_writel(sh7724_rstandby_state.cs6abcr, 0xfec1001c); /* CS6ABCR */
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__raw_writel(sh7724_rstandby_state.cs6bbcr, 0xfec10020); /* CS6BBCR */
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__raw_writel(sh7724_rstandby_state.cs4wcr, 0xfec10030); /* CS4WCR */
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__raw_writel(sh7724_rstandby_state.cs5awcr, 0xfec10034); /* CS5AWCR */
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__raw_writel(sh7724_rstandby_state.cs5bwcr, 0xfec10038); /* CS5BWCR */
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__raw_writel(sh7724_rstandby_state.cs6awcr, 0xfec1003c); /* CS6AWCR */
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__raw_writel(sh7724_rstandby_state.cs6bwcr, 0xfec10040); /* CS6BWCR */
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/* INTC */
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__raw_writew(sh7724_rstandby_state.ipra, 0xa4080000); /* IPRA */
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__raw_writew(sh7724_rstandby_state.iprb, 0xa4080004); /* IPRB */
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__raw_writew(sh7724_rstandby_state.iprc, 0xa4080008); /* IPRC */
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__raw_writew(sh7724_rstandby_state.iprd, 0xa408000c); /* IPRD */
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__raw_writew(sh7724_rstandby_state.ipre, 0xa4080010); /* IPRE */
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__raw_writew(sh7724_rstandby_state.iprf, 0xa4080014); /* IPRF */
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__raw_writew(sh7724_rstandby_state.iprg, 0xa4080018); /* IPRG */
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__raw_writew(sh7724_rstandby_state.iprh, 0xa408001c); /* IPRH */
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__raw_writew(sh7724_rstandby_state.ipri, 0xa4080020); /* IPRI */
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__raw_writew(sh7724_rstandby_state.iprj, 0xa4080024); /* IPRJ */
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__raw_writew(sh7724_rstandby_state.iprk, 0xa4080028); /* IPRK */
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__raw_writew(sh7724_rstandby_state.iprl, 0xa408002c); /* IPRL */
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__raw_writeb(sh7724_rstandby_state.imr0, 0xa4080080); /* IMR0 */
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__raw_writeb(sh7724_rstandby_state.imr1, 0xa4080084); /* IMR1 */
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__raw_writeb(sh7724_rstandby_state.imr2, 0xa4080088); /* IMR2 */
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__raw_writeb(sh7724_rstandby_state.imr3, 0xa408008c); /* IMR3 */
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__raw_writeb(sh7724_rstandby_state.imr4, 0xa4080090); /* IMR4 */
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__raw_writeb(sh7724_rstandby_state.imr5, 0xa4080094); /* IMR5 */
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__raw_writeb(sh7724_rstandby_state.imr6, 0xa4080098); /* IMR6 */
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__raw_writeb(sh7724_rstandby_state.imr7, 0xa408009c); /* IMR7 */
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__raw_writeb(sh7724_rstandby_state.imr8, 0xa40800a0); /* IMR8 */
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__raw_writeb(sh7724_rstandby_state.imr9, 0xa40800a4); /* IMR9 */
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__raw_writeb(sh7724_rstandby_state.imr10, 0xa40800a8); /* IMR10 */
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__raw_writeb(sh7724_rstandby_state.imr11, 0xa40800ac); /* IMR11 */
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__raw_writeb(sh7724_rstandby_state.imr12, 0xa40800b0); /* IMR12 */
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return NOTIFY_DONE;
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}
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static struct notifier_block sh7724_pre_sleep_notifier = {
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.notifier_call = sh7724_pre_sleep_notifier_call,
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.priority = SH_MOBILE_PRE(SH_MOBILE_SLEEP_CPU),
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};
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static struct notifier_block sh7724_post_sleep_notifier = {
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.notifier_call = sh7724_post_sleep_notifier_call,
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.priority = SH_MOBILE_POST(SH_MOBILE_SLEEP_CPU),
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};
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static int __init sh7724_sleep_setup(void)
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{
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atomic_notifier_chain_register(&sh_mobile_pre_sleep_notifier_list,
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&sh7724_pre_sleep_notifier);
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atomic_notifier_chain_register(&sh_mobile_post_sleep_notifier_list,
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&sh7724_post_sleep_notifier);
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return 0;
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}
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arch_initcall(sh7724_sleep_setup);
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