From: Jon Hunter <jon-hunter@ti.com>
Date: Thu, 21 Feb 2013 19:00:21 +0000 (-0600)
Subject: ARM: OMAP2+: Don't configure of chip-select options in gpmc_cs_configure()
X-Git-Tag: v5.15~20202^2~19^2^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3a544354d5b6e97459ba9c15e9d89dac60023553;p=platform%2Fkernel%2Flinux-starfive.git

ARM: OMAP2+: Don't configure of chip-select options in gpmc_cs_configure()

With the addition of the gpmc_cs_program_settings(), we no longer need
or use gpmc_cs_configure() to configure some of the GPMC chip-select
options. So rename the function to gpmc_configure() and remove code that
modifies options in the CONFIG1 register.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
---

diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c
index 75feb95..12e9753 100644
--- a/arch/arm/mach-omap2/gpmc-nand.c
+++ b/arch/arm/mach-omap2/gpmc-nand.c
@@ -154,7 +154,7 @@ int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
 		if (err < 0)
 			goto out_free_cs;
 
-		err = gpmc_cs_configure(gpmc_nand_data->cs, GPMC_CONFIG_WP, 0);
+		err = gpmc_configure(GPMC_CONFIG_WP, 0);
 		if (err < 0)
 			goto out_free_cs;
 	}
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index ee5d0e9..b22771b 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -550,16 +550,14 @@ void gpmc_cs_free(int cs)
 EXPORT_SYMBOL(gpmc_cs_free);
 
 /**
- * gpmc_cs_configure - write request to configure gpmc
- * @cs: chip select number
+ * gpmc_configure - write request to configure gpmc
  * @cmd: command type
  * @wval: value to write
  * @return status of the operation
  */
-int gpmc_cs_configure(int cs, int cmd, int wval)
+int gpmc_configure(int cmd, int wval)
 {
-	int err = 0;
-	u32 regval = 0;
+	u32 regval;
 
 	switch (cmd) {
 	case GPMC_ENABLE_IRQ:
@@ -579,47 +577,14 @@ int gpmc_cs_configure(int cs, int cmd, int wval)
 		gpmc_write_reg(GPMC_CONFIG, regval);
 		break;
 
-	case GPMC_CONFIG_RDY_BSY:
-		regval  = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
-		if (wval)
-			regval |= WR_RD_PIN_MONITORING;
-		else
-			regval &= ~WR_RD_PIN_MONITORING;
-		gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval);
-		break;
-
-	case GPMC_CONFIG_DEV_SIZE:
-		regval  = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
-
-		/* clear 2 target bits */
-		regval &= ~GPMC_CONFIG1_DEVICESIZE(3);
-
-		/* set the proper value */
-		regval |= GPMC_CONFIG1_DEVICESIZE(wval);
-
-		gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval);
-		break;
-
-	case GPMC_CONFIG_DEV_TYPE:
-		regval  = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
-		/* clear 4 target bits */
-		regval &= ~(GPMC_CONFIG1_DEVICETYPE(3) |
-			    GPMC_CONFIG1_MUXTYPE(3));
-		/* set the proper value */
-		regval |= GPMC_CONFIG1_DEVICETYPE(wval);
-		if (wval == GPMC_DEVICETYPE_NOR)
-			regval |= GPMC_CONFIG1_MUXADDDATA;
-		gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval);
-		break;
-
 	default:
-		printk(KERN_ERR "gpmc_configure_cs: Not supported\n");
-		err = -EINVAL;
+		pr_err("%s: command not supported\n", __func__);
+		return -EINVAL;
 	}
 
-	return err;
+	return 0;
 }
-EXPORT_SYMBOL(gpmc_cs_configure);
+EXPORT_SYMBOL(gpmc_configure);
 
 void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs)
 {
diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h
index ce6ae21..87d2a22 100644
--- a/arch/arm/mach-omap2/gpmc.h
+++ b/arch/arm/mach-omap2/gpmc.h
@@ -59,9 +59,6 @@
 #define GPMC_CONFIG1_DEVICETYPE(val)    ((val & 3) << 10)
 #define GPMC_CONFIG1_DEVICETYPE_NOR     GPMC_CONFIG1_DEVICETYPE(0)
 #define GPMC_CONFIG1_MUXTYPE(val)       ((val & 3) << 8)
-#define GPMC_CONFIG1_MUXNONMUX          GPMC_CONFIG1_MUXTYPE(0)
-#define GPMC_CONFIG1_MUXAAD             GPMC_CONFIG1_MUXTYPE(GPMC_MUX_AAD)
-#define GPMC_CONFIG1_MUXADDDATA         GPMC_CONFIG1_MUXTYPE(GPMC_MUX_AD)
 #define GPMC_CONFIG1_TIME_PARA_GRAN     (1 << 4)
 #define GPMC_CONFIG1_FCLK_DIV(val)      (val & 3)
 #define GPMC_CONFIG1_FCLK_DIV2          (GPMC_CONFIG1_FCLK_DIV(1))
@@ -227,6 +224,6 @@ extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base);
 extern void gpmc_cs_free(int cs);
 extern void omap3_gpmc_save_context(void);
 extern void omap3_gpmc_restore_context(void);
-extern int gpmc_cs_configure(int cs, int cmd, int wval);
+extern int gpmc_configure(int cmd, int wval);
 
 #endif