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authorTony Lindgren <tony@atomide.com>2008-01-25 04:24:15 +0300
committerTony Lindgren <tony@atomide.com>2008-04-14 20:57:13 +0400
commit9330899e0f878ff3b7a23b856de8bbb52c9c04fd (patch)
tree7ea8c0362e6320dfbd7c6dd124e34a0b6ef7c6b1 /arch/arm
parentf7337a199acffa9f12fa9d88253d33bfb56ef14a (diff)
downloadlinux-9330899e0f878ff3b7a23b856de8bbb52c9c04fd.tar.xz
ARM: OMAP2: Clean-up mux code
Misc clean-up for the mux code and remove some unnecessary ifdefs. Patch changes debug function so it can be used on both 24xx and 34xx. Changes are mostly for omap2, but patch also cleans up some omap1 and common mux code. Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-omap1/mux.c28
-rw-r--r--arch/arm/mach-omap2/mux.c69
-rw-r--r--arch/arm/plat-omap/mux.c4
3 files changed, 60 insertions, 41 deletions
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
index cf3bdc00cfdb..e207bf7cb853 100644
--- a/arch/arm/mach-omap1/mux.c
+++ b/arch/arm/mach-omap1/mux.c
@@ -3,9 +3,9 @@
*
* OMAP1 pin multiplexing configurations
*
- * Copyright (C) 2003 - 2005 Nokia Corporation
+ * Copyright (C) 2003 - 2008 Nokia Corporation
*
- * Written by Tony Lindgren <tony.lindgren@nokia.com>
+ * Written by Tony Lindgren
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -35,7 +35,7 @@
static struct omap_mux_cfg arch_mux_cfg;
#ifdef CONFIG_ARCH_OMAP730
-struct pin_config __initdata_or_module omap730_pins[] = {
+static struct pin_config __initdata_or_module omap730_pins[] = {
MUX_CFG_730("E2_730_KBR0", 12, 21, 0, 20, 1, 0)
MUX_CFG_730("J7_730_KBR1", 12, 25, 0, 24, 1, 0)
MUX_CFG_730("E1_730_KBR2", 12, 29, 0, 28, 1, 0)
@@ -51,10 +51,14 @@ MUX_CFG_730("AA17_730_USB_DM", 2, 21, 0, 20, 0, 0)
MUX_CFG_730("W16_730_USB_PU_EN", 2, 25, 0, 24, 0, 0)
MUX_CFG_730("W17_730_USB_VBUSI", 2, 29, 0, 28, 0, 0)
};
-#endif
+#define OMAP730_PINS_SZ ARRAY_SIZE(omap730_pins)
+#else
+#define omap730_pins NULL
+#define OMAP730_PINS_SZ 0
+#endif /* CONFIG_ARCH_OMAP730 */
#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
-struct pin_config __initdata_or_module omap1xxx_pins[] = {
+static struct pin_config __initdata_or_module omap1xxx_pins[] = {
/*
* description mux mode mux pull pull pull pu_pd pu dbg
* reg offset mode reg bit ena reg
@@ -308,8 +312,11 @@ MUX_CFG("Y12_1610_CCP_CLKP", 8, 18, 6, 1, 24, 1, 1, 0, 0)
MUX_CFG("W13_1610_CCP_CLKM", 9, 0, 6, 1, 28, 1, 1, 0, 0)
MUX_CFG("W14_1610_CCP_DATAP", 9, 24, 6, 2, 4, 1, 2, 0, 0)
MUX_CFG("Y14_1610_CCP_DATAM", 9, 21, 6, 2, 3, 1, 2, 0, 0)
-
};
+#define OMAP1XXX_PINS_SZ ARRAY_SIZE(omap1xxx_pins)
+#else
+#define omap1xxx_pins NULL
+#define OMAP1XXX_PINS_SZ 0
#endif /* CONFIG_ARCH_OMAP15XX || CONFIG_ARCH_OMAP16XX */
int __init_or_module omap1_cfg_reg(const struct pin_config *cfg)
@@ -422,22 +429,17 @@ int __init_or_module omap1_cfg_reg(const struct pin_config *cfg)
int __init omap1_mux_init(void)
{
-
-#ifdef CONFIG_ARCH_OMAP730
if (cpu_is_omap730()) {
arch_mux_cfg.pins = omap730_pins;
- arch_mux_cfg.size = ARRAY_SIZE(omap730_pins);
+ arch_mux_cfg.size = OMAP730_PINS_SZ;
arch_mux_cfg.cfg_reg = omap1_cfg_reg;
}
-#endif
-#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
arch_mux_cfg.pins = omap1xxx_pins;
- arch_mux_cfg.size = ARRAY_SIZE(omap1xxx_pins);
+ arch_mux_cfg.size = OMAP1XXX_PINS_SZ;
arch_mux_cfg.cfg_reg = omap1_cfg_reg;
}
-#endif
return omap_mux_register(&arch_mux_cfg);
}
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 5cba3a2a2392..0cf7562ff88f 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -1,11 +1,12 @@
/*
* linux/arch/arm/mach-omap2/mux.c
*
- * OMAP1 pin multiplexing configurations
+ * OMAP2 pin multiplexing configurations
*
- * Copyright (C) 2003 - 2005 Nokia Corporation
+ * Copyright (C) 2004 - 2008 Texas Instruments Inc.
+ * Copyright (C) 2003 - 2008 Nokia Corporation
*
- * Written by Tony Lindgren <tony.lindgren@nokia.com>
+ * Written by Tony Lindgren
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -36,7 +37,8 @@ static struct omap_mux_cfg arch_mux_cfg;
/* NOTE: See mux.h for the enumeration */
-struct pin_config __initdata_or_module omap24xx_pins[] = {
+#ifdef CONFIG_ARCH_OMAP24XX
+static struct pin_config __initdata_or_module omap24xx_pins[] = {
/*
* description mux mux pull pull debug
* offset mode ena type
@@ -209,54 +211,69 @@ MUX_CFG_24XX("AE13_2430_MCBSP2_DX_OFF", 0x0130, 0, 0, 0, 1)
MUX_CFG_24XX("AD13_2430_MCBSP2_DR_OFF", 0x0131, 0, 0, 0, 1)
};
-#ifdef CONFIG_ARCH_OMAP24XX
+#define OMAP24XX_PINS_SZ ARRAY_SIZE(omap24xx_pins)
+
+#else
+#define omap24xx_pins NULL
+#define OMAP24XX_PINS_SZ 0
+#endif /* CONFIG_ARCH_OMAP24XX */
#define OMAP24XX_L4_BASE 0x48000000
#define OMAP24XX_PULL_ENA (1 << 3)
#define OMAP24XX_PULL_UP (1 << 4)
/* REVISIT: Convert this code to use ctrl_{read,write}_reg */
+#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
+void __init_or_module omap2_cfg_debug(const struct pin_config *cfg, u8 reg)
+{
+ u16 orig;
+ u8 warn = 0, debug = 0;
+
+ orig = omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg);
+
+#ifdef CONFIG_OMAP_MUX_DEBUG
+ debug = cfg->debug;
+#endif
+ warn = (orig != reg);
+ if (debug || warn)
+ printk(KERN_WARNING
+ "MUX: setup %s (0x%08x): 0x%02x -> 0x%02x\n",
+ cfg->name, omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg));
+}
+#else
+#define omap2_cfg_debug(x, y) do {} while (0)
+#endif
+
+#ifdef CONFIG_ARCH_OMAP24XX
int __init_or_module omap24xx_cfg_reg(const struct pin_config *cfg)
{
+ static DEFINE_SPINLOCK(mux_spin_lock);
+ unsigned long flags;
u8 reg = 0;
- unsigned int warn = 0;
+ spin_lock_irqsave(&mux_spin_lock, flags);
reg |= cfg->mask & 0x7;
if (cfg->pull_val)
reg |= OMAP24XX_PULL_ENA;
- if(cfg->pu_pd_val)
+ if (cfg->pu_pd_val)
reg |= OMAP24XX_PULL_UP;
-#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
- {
- u8 orig = omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg);
- u8 debug = 0;
-
-#ifdef CONFIG_OMAP_MUX_DEBUG
- debug = cfg->debug;
-#endif
- warn = (orig != reg);
- if (debug || warn)
- printk("MUX: setup %s (0x%08x): 0x%02x -> 0x%02x\n",
- cfg->name, OMAP24XX_L4_BASE + cfg->mux_reg,
- orig, reg);
- }
-#endif
+ omap2_cfg_debug(cfg, reg);
omap_writeb(reg, OMAP24XX_L4_BASE + cfg->mux_reg);
+ spin_unlock_irqrestore(&mux_spin_lock, flags);
return 0;
}
+#else
+#define omap24xx_cfg_reg 0
#endif
int __init omap2_mux_init(void)
{
-
-#ifdef CONFIG_ARCH_OMAP24XX
if (cpu_is_omap24xx()) {
arch_mux_cfg.pins = omap24xx_pins;
- arch_mux_cfg.size = ARRAY_SIZE(omap24xx_pins);
+ arch_mux_cfg.size = OMAP24XX_PINS_SZ;
arch_mux_cfg.cfg_reg = omap24xx_cfg_reg;
}
-#endif
return omap_mux_register(&arch_mux_cfg);
}
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 4de18b9ffb16..6f3f459731c8 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -3,9 +3,9 @@
*
* Utility to set the Omap MUX and PULL_DWN registers from a table in mux.h
*
- * Copyright (C) 2003 - 2005 Nokia Corporation
+ * Copyright (C) 2003 - 2008 Nokia Corporation
*
- * Written by Tony Lindgren <tony.lindgren@nokia.com>
+ * Written by Tony Lindgren
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by