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path: root/arch/arm/plat-omap/gpio.c
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Diffstat (limited to 'arch/arm/plat-omap/gpio.c')
-rw-r--r--arch/arm/plat-omap/gpio.c111
1 files changed, 105 insertions, 6 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index f856a90b264e..d3fa41e3d8c5 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -81,6 +81,22 @@
#define OMAP730_GPIO_INT_STATUS 0x14
/*
+ * OMAP850 specific GPIO registers
+ */
+#define OMAP850_GPIO1_BASE IO_ADDRESS(0xfffbc000)
+#define OMAP850_GPIO2_BASE IO_ADDRESS(0xfffbc800)
+#define OMAP850_GPIO3_BASE IO_ADDRESS(0xfffbd000)
+#define OMAP850_GPIO4_BASE IO_ADDRESS(0xfffbd800)
+#define OMAP850_GPIO5_BASE IO_ADDRESS(0xfffbe000)
+#define OMAP850_GPIO6_BASE IO_ADDRESS(0xfffbe800)
+#define OMAP850_GPIO_DATA_INPUT 0x00
+#define OMAP850_GPIO_DATA_OUTPUT 0x04
+#define OMAP850_GPIO_DIR_CONTROL 0x08
+#define OMAP850_GPIO_INT_CONTROL 0x0c
+#define OMAP850_GPIO_INT_MASK 0x10
+#define OMAP850_GPIO_INT_STATUS 0x14
+
+/*
* omap24xx specific GPIO registers
*/
#define OMAP242X_GPIO1_BASE IO_ADDRESS(0x48018000)
@@ -159,7 +175,8 @@ struct gpio_bank {
#define METHOD_GPIO_1510 1
#define METHOD_GPIO_1610 2
#define METHOD_GPIO_730 3
-#define METHOD_GPIO_24XX 4
+#define METHOD_GPIO_850 4
+#define METHOD_GPIO_24XX 5
#ifdef CONFIG_ARCH_OMAP16XX
static struct gpio_bank gpio_bank_1610[5] = {
@@ -190,6 +207,19 @@ static struct gpio_bank gpio_bank_730[7] = {
};
#endif
+#ifdef CONFIG_ARCH_OMAP850
+static struct gpio_bank gpio_bank_850[7] = {
+ { OMAP_MPUIO_BASE, INT_850_MPUIO, IH_MPUIO_BASE, METHOD_MPUIO },
+ { OMAP850_GPIO1_BASE, INT_850_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_850 },
+ { OMAP850_GPIO2_BASE, INT_850_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_850 },
+ { OMAP850_GPIO3_BASE, INT_850_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_850 },
+ { OMAP850_GPIO4_BASE, INT_850_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_850 },
+ { OMAP850_GPIO5_BASE, INT_850_GPIO_BANK5, IH_GPIO_BASE + 128, METHOD_GPIO_850 },
+ { OMAP850_GPIO6_BASE, INT_850_GPIO_BANK6, IH_GPIO_BASE + 160, METHOD_GPIO_850 },
+};
+#endif
+
+
#ifdef CONFIG_ARCH_OMAP24XX
static struct gpio_bank gpio_bank_242x[4] = {
@@ -236,7 +266,7 @@ static inline struct gpio_bank *get_gpio_bank(int gpio)
return &gpio_bank[0];
return &gpio_bank[1 + (gpio >> 4)];
}
- if (cpu_is_omap730()) {
+ if (cpu_is_omap7xx()) {
if (OMAP_GPIO_IS_MPUIO(gpio))
return &gpio_bank[0];
return &gpio_bank[1 + (gpio >> 5)];
@@ -251,7 +281,7 @@ static inline struct gpio_bank *get_gpio_bank(int gpio)
static inline int get_gpio_index(int gpio)
{
- if (cpu_is_omap730())
+ if (cpu_is_omap7xx())
return gpio & 0x1f;
if (cpu_is_omap24xx())
return gpio & 0x1f;
@@ -273,7 +303,7 @@ static inline int gpio_valid(int gpio)
return 0;
if ((cpu_is_omap16xx()) && gpio < 64)
return 0;
- if (cpu_is_omap730() && gpio < 192)
+ if (cpu_is_omap7xx() && gpio < 192)
return 0;
if (cpu_is_omap24xx() && gpio < 128)
return 0;
@@ -318,6 +348,11 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
reg += OMAP730_GPIO_DIR_CONTROL;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_DIR_CONTROL;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_OE;
@@ -380,6 +415,16 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
l &= ~(1 << gpio);
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_DATA_OUTPUT;
+ l = __raw_readl(reg);
+ if (enable)
+ l |= 1 << gpio;
+ else
+ l &= ~(1 << gpio);
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
if (enable)
@@ -426,6 +471,11 @@ static int __omap_get_gpio_datain(int gpio)
reg += OMAP730_GPIO_DATA_INPUT;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_DATA_INPUT;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_DATAIN;
@@ -598,6 +648,18 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
goto bad;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_INT_CONTROL;
+ l = __raw_readl(reg);
+ if (trigger & IRQ_TYPE_EDGE_RISING)
+ l |= 1 << gpio;
+ else if (trigger & IRQ_TYPE_EDGE_FALLING)
+ l &= ~(1 << gpio);
+ else
+ goto bad;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
set_24xx_gpio_triggering(bank, gpio, trigger);
@@ -678,6 +740,11 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
reg += OMAP730_GPIO_INT_STATUS;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_INT_STATUS;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_IRQSTATUS1;
@@ -736,6 +803,13 @@ static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank)
inv = 1;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_INT_MASK;
+ mask = 0xffffffff;
+ inv = 1;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_IRQENABLE1;
@@ -799,6 +873,16 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab
l |= gpio_mask;
break;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_INT_MASK;
+ l = __raw_readl(reg);
+ if (enable)
+ l &= ~(gpio_mask);
+ else
+ l |= gpio_mask;
+ break;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
case METHOD_GPIO_24XX:
if (enable)
@@ -983,6 +1067,10 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
if (bank->method == METHOD_GPIO_730)
isr_reg = bank->base + OMAP730_GPIO_INT_STATUS;
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ if (bank->method == METHOD_GPIO_850)
+ isr_reg = bank->base + OMAP850_GPIO_INT_STATUS;
+#endif
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
if (bank->method == METHOD_GPIO_24XX)
isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1;
@@ -1372,6 +1460,13 @@ static int __init _omap_gpio_init(void)
gpio_bank = gpio_bank_730;
}
#endif
+#ifdef CONFIG_ARCH_OMAP850
+ if (cpu_is_omap850()) {
+ printk(KERN_INFO "OMAP850 GPIO hardware\n");
+ gpio_bank_count = 7;
+ gpio_bank = gpio_bank_850;
+ }
+#endif
#ifdef CONFIG_ARCH_OMAP24XX
if (cpu_is_omap242x()) {
@@ -1420,7 +1515,7 @@ static int __init _omap_gpio_init(void)
__raw_writew(0xffff, bank->base + OMAP1610_GPIO_IRQSTATUS1);
__raw_writew(0x0014, bank->base + OMAP1610_GPIO_SYSCONFIG);
}
- if (cpu_is_omap730() && bank->method == METHOD_GPIO_730) {
+ if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_730) {
__raw_writel(0xffffffff, bank->base + OMAP730_GPIO_INT_MASK);
__raw_writel(0x00000000, bank->base + OMAP730_GPIO_INT_STATUS);
@@ -1743,6 +1838,9 @@ static int gpio_is_input(struct gpio_bank *bank, int mask)
case METHOD_GPIO_730:
reg += OMAP730_GPIO_DIR_CONTROL;
break;
+ case METHOD_GPIO_850:
+ reg += OMAP850_GPIO_DIR_CONTROL;
+ break;
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_OE;
break;
@@ -1762,7 +1860,8 @@ static int dbg_gpio_show(struct seq_file *s, void *unused)
if (bank_is_mpuio(bank))
gpio = OMAP_MPUIO(0);
- else if (cpu_class_is_omap2() || cpu_is_omap730())
+ else if (cpu_class_is_omap2() || cpu_is_omap730() ||
+ cpu_is_omap850())
bankwidth = 32;
for (j = 0; j < bankwidth; j++, gpio++, mask <<= 1) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.