diff options
author | Tony Lindgren <tony@atomide.com> | 2010-02-15 09:27:25 -0800 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2010-02-15 09:27:25 -0800 |
commit | 3f1686a9bfe74979c6ad538c78039730f665f77e (patch) | |
tree | 4220c1c16d3db8906fb66643db3ddc769a0e95b0 /arch/arm | |
parent | 4751227df948582e82f19df30efa662ab71fa980 (diff) | |
download | op-kernel-dev-3f1686a9bfe74979c6ad538c78039730f665f77e.zip op-kernel-dev-3f1686a9bfe74979c6ad538c78039730f665f77e.tar.gz |
omap: Fix gpio.c for multi-omap for omap4
Set up METHOD_GPIO_44XX instead of trying to use the METHOD_GPIO_24XX.
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/plat-omap/gpio.c | 224 |
1 files changed, 133 insertions, 91 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index a888304..6055028 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -202,6 +202,7 @@ struct gpio_bank { #define METHOD_GPIO_1610 2 #define METHOD_GPIO_7XX 3 #define METHOD_GPIO_24XX 5 +#define METHOD_GPIO_44XX 6 #ifdef CONFIG_ARCH_OMAP16XX static struct gpio_bank gpio_bank_1610[5] = { @@ -312,17 +313,17 @@ static struct omap3_gpio_regs gpio_context[OMAP34XX_NR_GPIOS]; #ifdef CONFIG_ARCH_OMAP4 static struct gpio_bank gpio_bank_44xx[6] = { { OMAP44XX_GPIO1_BASE, NULL, INT_44XX_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, { OMAP44XX_GPIO2_BASE, NULL, INT_44XX_GPIO_BANK2, IH_GPIO_BASE + 32, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, { OMAP44XX_GPIO3_BASE, NULL, INT_44XX_GPIO_BANK3, IH_GPIO_BASE + 64, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, { OMAP44XX_GPIO4_BASE, NULL, INT_44XX_GPIO_BANK4, IH_GPIO_BASE + 96, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, { OMAP44XX_GPIO5_BASE, NULL, INT_44XX_GPIO_BANK5, IH_GPIO_BASE + 128, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, { OMAP44XX_GPIO6_BASE, NULL, INT_44XX_GPIO_BANK6, IH_GPIO_BASE + 160, - METHOD_GPIO_24XX }, + METHOD_GPIO_44XX }, }; #endif @@ -430,7 +431,7 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) break; #endif #if defined(CONFIG_ARCH_OMAP4) - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP4_GPIO_OE; break; #endif @@ -501,7 +502,7 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) break; #endif #ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: if (enable) reg += OMAP4_GPIO_SETDATAOUT; else @@ -550,7 +551,7 @@ static int _get_gpio_datain(struct gpio_bank *bank, int gpio) break; #endif #ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP4_GPIO_DATAIN; break; #endif @@ -592,6 +593,7 @@ static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) #endif #ifdef CONFIG_ARCH_OMAP2PLUS case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP24XX_GPIO_DATAOUT; break; #endif @@ -622,11 +624,12 @@ void omap_set_gpio_debounce(int gpio, int enable) bank = get_gpio_bank(gpio); reg = bank->base; -#ifdef CONFIG_ARCH_OMAP4 - reg += OMAP4_GPIO_DEBOUNCENABLE; -#else - reg += OMAP24XX_GPIO_DEBOUNCE_EN; -#endif + + if (cpu_is_omap44xx()) + reg += OMAP4_GPIO_DEBOUNCENABLE; + else + reg += OMAP24XX_GPIO_DEBOUNCE_EN; + if (!(bank->mod_usage & l)) { printk(KERN_ERR "GPIO %d not requested\n", gpio); return; @@ -672,11 +675,12 @@ void omap_set_gpio_debounce_time(int gpio, int enc_time) } enc_time &= 0xff; -#ifdef CONFIG_ARCH_OMAP4 - reg += OMAP4_GPIO_DEBOUNCINGTIME; -#else - reg += OMAP24XX_GPIO_DEBOUNCE_VAL; -#endif + + if (cpu_is_omap44xx()) + reg += OMAP4_GPIO_DEBOUNCINGTIME; + else + reg += OMAP24XX_GPIO_DEBOUNCE_VAL; + __raw_writel(enc_time, reg); } EXPORT_SYMBOL(omap_set_gpio_debounce_time); @@ -854,6 +858,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) #endif #ifdef CONFIG_ARCH_OMAP2PLUS case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: set_24xx_gpio_triggering(bank, gpio, trigger); break; #endif @@ -938,7 +943,7 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) break; #endif #if defined(CONFIG_ARCH_OMAP4) - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP4_GPIO_IRQSTATUS0; break; #endif @@ -949,12 +954,11 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) __raw_writel(gpio_mask, reg); /* Workaround for clearing DSP GPIO interrupts to allow retention */ -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2; -#endif -#if defined(CONFIG_ARCH_OMAP4) - reg = bank->base + OMAP4_GPIO_IRQSTATUS1; -#endif + if (cpu_is_omap24xx() || cpu_is_omap34xx()) + reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2; + else if (cpu_is_omap44xx()) + reg = bank->base + OMAP4_GPIO_IRQSTATUS1; + if (cpu_is_omap24xx() || cpu_is_omap34xx() || cpu_is_omap44xx()) { __raw_writel(gpio_mask, reg); @@ -1010,7 +1014,7 @@ static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank) break; #endif #if defined(CONFIG_ARCH_OMAP4) - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP4_GPIO_IRQSTATUSSET0; mask = 0xffffffff; break; @@ -1082,7 +1086,7 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab break; #endif #ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: if (enable) reg += OMAP4_GPIO_IRQSTATUSSET0; else @@ -1128,6 +1132,7 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) #endif #ifdef CONFIG_ARCH_OMAP2PLUS case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: if (bank->non_wakeup_gpios & (1 << gpio)) { printk(KERN_ERR "Unable to modify wakeup on " "non-wakeup GPIO%d\n", @@ -1222,7 +1227,8 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset) } #endif #ifdef CONFIG_ARCH_OMAP2PLUS - if (bank->method == METHOD_GPIO_24XX) { + if ((bank->method == METHOD_GPIO_24XX) || + (bank->method == METHOD_GPIO_44XX)) { /* Disable wake-up during idle for dynamic tick */ void __iomem *reg = bank->base + OMAP24XX_GPIO_CLEARWKUENA; __raw_writel(1 << offset, reg); @@ -1284,7 +1290,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1; #endif #if defined(CONFIG_ARCH_OMAP4) - if (bank->method == METHOD_GPIO_24XX) + if (bank->method == METHOD_GPIO_44XX) isr_reg = bank->base + OMAP4_GPIO_IRQSTATUS0; #endif while(1) { @@ -1564,6 +1570,7 @@ static int gpio_is_input(struct gpio_bank *bank, int mask) reg += OMAP7XX_GPIO_DIR_CONTROL; break; case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: reg += OMAP24XX_GPIO_OE; break; } @@ -1803,28 +1810,41 @@ static int __init _omap_gpio_init(void) } #ifdef CONFIG_ARCH_OMAP2PLUS - if (bank->method == METHOD_GPIO_24XX) { + if ((bank->method == METHOD_GPIO_24XX) || + (bank->method == METHOD_GPIO_44XX)) { static const u32 non_wakeup_gpios[] = { 0xe203ffc0, 0x08700040 }; - if (cpu_is_omap44xx()) { - __raw_writel(0xffffffff, bank->base + + + if (cpu_is_omap44xx()) { + __raw_writel(0xffffffff, bank->base + OMAP4_GPIO_IRQSTATUSCLR0); - __raw_writew(0x0015, bank->base + + __raw_writew(0x0015, bank->base + OMAP4_GPIO_SYSCONFIG); - __raw_writel(0x00000000, bank->base + + __raw_writel(0x00000000, bank->base + OMAP4_GPIO_DEBOUNCENABLE); - /* Initialize interface clock ungated, module enabled */ - __raw_writel(0, bank->base + OMAP4_GPIO_CTRL); - } else { - __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1); - __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1); - __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG); - __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_DEBOUNCE_EN); - - /* Initialize interface clock ungated, module enabled */ - __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL); - } + /* + * Initialize interface clock ungated, + * module enabled + */ + __raw_writel(0, bank->base + OMAP4_GPIO_CTRL); + } else { + __raw_writel(0x00000000, bank->base + + OMAP24XX_GPIO_IRQENABLE1); + __raw_writel(0xffffffff, bank->base + + OMAP24XX_GPIO_IRQSTATUS1); + __raw_writew(0x0015, bank->base + + OMAP24XX_GPIO_SYSCONFIG); + __raw_writel(0x00000000, bank->base + + OMAP24XX_GPIO_DEBOUNCE_EN); + + /* + * Initialize interface clock ungated, + * module enabled + */ + __raw_writel(0, bank->base + + OMAP24XX_GPIO_CTRL); + } if (i < ARRAY_SIZE(non_wakeup_gpios)) bank->non_wakeup_gpios = non_wakeup_gpios[i]; gpio_count = 32; @@ -1926,7 +1946,7 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) break; #endif #ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: wake_status = bank->base + OMAP4_GPIO_IRQWAKEN0; wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0; wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0; @@ -1973,7 +1993,7 @@ static int omap_gpio_resume(struct sys_device *dev) break; #endif #ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_24XX: + case METHOD_GPIO_44XX: wake_clear = bank->base + OMAP4_GPIO_IRQWAKEN0; wake_set = bank->base + OMAP4_GPIO_IRQWAKEN0; break; @@ -2020,29 +2040,42 @@ void omap2_gpio_prepare_for_retention(void) if (!(bank->enabled_non_wakeup_gpios)) continue; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - bank->saved_datain = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); - l1 = __raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT); - l2 = __raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT); -#endif -#ifdef CONFIG_ARCH_OMAP4 - bank->saved_datain = __raw_readl(bank->base + - OMAP4_GPIO_DATAIN); - l1 = __raw_readl(bank->base + OMAP4_GPIO_FALLINGDETECT); - l2 = __raw_readl(bank->base + OMAP4_GPIO_RISINGDETECT); -#endif + + if (cpu_is_omap24xx() || cpu_is_omap34xx()) { + bank->saved_datain = __raw_readl(bank->base + + OMAP24XX_GPIO_DATAIN); + l1 = __raw_readl(bank->base + + OMAP24XX_GPIO_FALLINGDETECT); + l2 = __raw_readl(bank->base + + OMAP24XX_GPIO_RISINGDETECT); + } + + if (cpu_is_omap44xx()) { + bank->saved_datain = __raw_readl(bank->base + + OMAP4_GPIO_DATAIN); + l1 = __raw_readl(bank->base + + OMAP4_GPIO_FALLINGDETECT); + l2 = __raw_readl(bank->base + + OMAP4_GPIO_RISINGDETECT); + } + bank->saved_fallingdetect = l1; bank->saved_risingdetect = l2; l1 &= ~bank->enabled_non_wakeup_gpios; l2 &= ~bank->enabled_non_wakeup_gpios; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - __raw_writel(l1, bank->base + OMAP24XX_GPIO_FALLINGDETECT); - __raw_writel(l2, bank->base + OMAP24XX_GPIO_RISINGDETECT); -#endif -#ifdef CONFIG_ARCH_OMAP4 - __raw_writel(l1, bank->base + OMAP4_GPIO_FALLINGDETECT); - __raw_writel(l2, bank->base + OMAP4_GPIO_RISINGDETECT); -#endif + + if (cpu_is_omap24xx() || cpu_is_omap34xx()) { + __raw_writel(l1, bank->base + + OMAP24XX_GPIO_FALLINGDETECT); + __raw_writel(l2, bank->base + + OMAP24XX_GPIO_RISINGDETECT); + } + + if (cpu_is_omap44xx()) { + __raw_writel(l1, bank->base + OMAP4_GPIO_FALLINGDETECT); + __raw_writel(l2, bank->base + OMAP4_GPIO_RISINGDETECT); + } + c++; } if (!c) { @@ -2064,20 +2097,23 @@ void omap2_gpio_resume_after_retention(void) if (!(bank->enabled_non_wakeup_gpios)) continue; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - __raw_writel(bank->saved_fallingdetect, + + if (cpu_is_omap24xx() || cpu_is_omap34xx()) { + __raw_writel(bank->saved_fallingdetect, bank->base + OMAP24XX_GPIO_FALLINGDETECT); - __raw_writel(bank->saved_risingdetect, + __raw_writel(bank->saved_risingdetect, bank->base + OMAP24XX_GPIO_RISINGDETECT); - l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); -#endif -#ifdef CONFIG_ARCH_OMAP4 - __raw_writel(bank->saved_fallingdetect, + l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); + } + + if (cpu_is_omap44xx()) { + __raw_writel(bank->saved_fallingdetect, bank->base + OMAP4_GPIO_FALLINGDETECT); - __raw_writel(bank->saved_risingdetect, + __raw_writel(bank->saved_risingdetect, bank->base + OMAP4_GPIO_RISINGDETECT); - l = __raw_readl(bank->base + OMAP4_GPIO_DATAIN); -#endif + l = __raw_readl(bank->base + OMAP4_GPIO_DATAIN); + } + /* Check if any of the non-wakeup interrupt GPIOs have changed * state. If so, generate an IRQ by software. This is * horribly racy, but it's the best we can do to work around @@ -2103,30 +2139,36 @@ void omap2_gpio_resume_after_retention(void) if (gen) { u32 old0, old1; -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0); - old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); + + if (cpu_is_omap24xx() || cpu_is_omap44xx()) { + old0 = __raw_readl(bank->base + + OMAP24XX_GPIO_LEVELDETECT0); + old1 = __raw_readl(bank->base + + OMAP24XX_GPIO_LEVELDETECT1); __raw_writel(old0 | gen, bank->base + OMAP24XX_GPIO_LEVELDETECT0); __raw_writel(old1 | gen, bank->base + OMAP24XX_GPIO_LEVELDETECT1); - __raw_writel(old0, bank->base + OMAP24XX_GPIO_LEVELDETECT0); - __raw_writel(old1, bank->base + OMAP24XX_GPIO_LEVELDETECT1); -#endif -#ifdef CONFIG_ARCH_OMAP4 - old0 = __raw_readl(bank->base + + __raw_writel(old0, bank->base + + OMAP24XX_GPIO_LEVELDETECT0); + __raw_writel(old1, bank->base + + OMAP24XX_GPIO_LEVELDETECT1); + } + + if (cpu_is_omap44xx()) { + old0 = __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT0); - old1 = __raw_readl(bank->base + + old1 = __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT1); - __raw_writel(old0 | l, bank->base + + __raw_writel(old0 | l, bank->base + OMAP4_GPIO_LEVELDETECT0); - __raw_writel(old1 | l, bank->base + + __raw_writel(old1 | l, bank->base + OMAP4_GPIO_LEVELDETECT1); - __raw_writel(old0, bank->base + + __raw_writel(old0, bank->base + OMAP4_GPIO_LEVELDETECT0); - __raw_writel(old1, bank->base + + __raw_writel(old1, bank->base + OMAP4_GPIO_LEVELDETECT1); -#endif + } } } |