add emmc clk power save config.

4 files changed, 16 insertions, 1 deletions

diff --git a/drivers/mtd/rknand/Kconfig b/drivers/mtd/rknand/Kconfig
index a3a99d9e956a..58e91664a6e6 100755
--- a/drivers/mtd/rknand/Kconfig
+++ b/drivers/mtd/rknand/Kconfig
@@ -22,6 +22,12 @@ config MTD_RKNAND_BUFFER
 	depends on MTD_RKNAND 

     default y 

 	help 

+	

+config MTD_EMMC_CLK_POWER_SAVE 

+	tristate "RK29 emmc clock power save" 

+	depends on MTD_RKNAND 

+    default n

+	help 

  

 config MTD_NAND_RK29XX_DEBUG 

 	tristate "RK29 Nand driver debug enables" 

diff --git a/drivers/mtd/rknand/nand_config.h b/drivers/mtd/rknand/nand_config.h
index ab19472d40e3..ecdb030d97b0 100755
--- a/drivers/mtd/rknand/nand_config.h
+++ b/drivers/mtd/rknand/nand_config.h
@@ -62,6 +62,9 @@ extern void rkNand_cond_resched(void);
 

 #define COND_RESCHED() rkNand_cond_resched()//cond_resched()

 

+extern unsigned long rk_dma_mem_alloc(int size);

+extern unsigned long rk_dma_mem_free(unsigned long buf);

+

 #define PRINTF RKNAND_DEBUG

 #endif

 

diff --git a/drivers/mtd/rknand/rknand_base.h b/drivers/mtd/rknand/rknand_base.h
index 2bc4f7aa32b6..a22d22df3330 100755
--- a/drivers/mtd/rknand/rknand_base.h
+++ b/drivers/mtd/rknand/rknand_base.h
@@ -66,6 +66,8 @@ struct rknand_info {
     int (*GetIdBlockSysData)(char * buf, int Sector);

     char (*GetSNSectorInfo)(char * pbuf);

     char (*GetChipSectorInfo)(char * pbuf);

+    int emmc_clk_power_save_en;

+    int reserved[20];

 };

 

 extern int rknand_queue_read(int Index, int nSec, void *buf);

diff --git a/drivers/mtd/rknand/rknand_base_ko.c b/drivers/mtd/rknand/rknand_base_ko.c
index 7ee13b22fa93..74d486e31e2c 100755
--- a/drivers/mtd/rknand/rknand_base_ko.c
+++ b/drivers/mtd/rknand/rknand_base_ko.c
@@ -334,7 +334,11 @@ static int rknand_probe(struct platform_device *pdev)
 

     gpNandInfo->bufSize = MAX_BUFFER_SIZE * 512;

     gpNandInfo->pbuf = grknand_buf;

-   

+

+#ifdef CONFIG_MTD_EMMC_CLK_POWER_SAVE

+    gpNandInfo->emmc_clk_power_save_en = 1;

+#endif

+

 	rknand_mtd.name = dev_name(&pdev->dev);

 	rknand_mtd.priv = &nand_info->rknand;

 	rknand_mtd.owner = THIS_MODULE;