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Diffstat (limited to 'arch/arm/mach-imx/mach-mx31ads.c')
-rw-r--r--arch/arm/mach-imx/mach-mx31ads.c104
1 files changed, 73 insertions, 31 deletions
diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
index 4917aab0e25..d08c37c696f 100644
--- a/arch/arm/mach-imx/mach-mx31ads.c
+++ b/arch/arm/mach-imx/mach-mx31ads.c
@@ -21,15 +21,13 @@
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
-#include <mach/common.h>
-#include <mach/board-mx31ads.h>
-#include <mach/iomux-mx3.h>
#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
#include <linux/mfd/wm8350/audio.h>
@@ -37,7 +35,13 @@
#include <linux/mfd/wm8350/pmic.h>
#endif
+#include "common.h"
#include "devices-imx31.h"
+#include "hardware.h"
+#include "iomux-mx3.h"
+
+/* Base address of PBC controller */
+#define PBC_BASE_ADDRESS MX31_CS4_BASE_ADDR_VIRT
/* PBC Board interrupt status register */
#define PBC_INTSTATUS 0x000016
@@ -60,15 +64,18 @@
#define PBC_INTSTATUS_REG (PBC_INTSTATUS + PBC_BASE_ADDRESS)
#define PBC_INTMASK_SET_REG (PBC_INTMASK_SET + PBC_BASE_ADDRESS)
#define PBC_INTMASK_CLEAR_REG (PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
-#define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_4)
-
-#define MXC_IRQ_TO_EXPIO(irq) ((irq) - MXC_EXP_IO_BASE)
-#define EXPIO_INT_XUART_INTA (MXC_EXP_IO_BASE + 10)
-#define EXPIO_INT_XUART_INTB (MXC_EXP_IO_BASE + 11)
+#define EXPIO_INT_XUART_INTA 10
+#define EXPIO_INT_XUART_INTB 11
#define MXC_MAX_EXP_IO_LINES 16
+/* CS8900 */
+#define EXPIO_INT_ENET_INT 8
+#define CS4_CS8900_MMIO_START 0x20000
+
+static struct irq_domain *domain;
+
/*
* The serial port definition structure.
*/
@@ -76,7 +83,6 @@ static struct plat_serial8250_port serial_platform_data[] = {
{
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA),
.mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTA),
- .irq = EXPIO_INT_XUART_INTA,
.uartclk = 14745600,
.regshift = 0,
.iotype = UPIO_MEM,
@@ -84,7 +90,6 @@ static struct plat_serial8250_port serial_platform_data[] = {
}, {
.membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB),
.mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTB),
- .irq = EXPIO_INT_XUART_INTB,
.uartclk = 14745600,
.regshift = 0,
.iotype = UPIO_MEM,
@@ -101,11 +106,37 @@ static struct platform_device serial_device = {
},
};
+static struct resource mx31ads_cs8900_resources[] __initdata = {
+ DEFINE_RES_MEM(MX31_CS4_BASE_ADDR + CS4_CS8900_MMIO_START, SZ_64K),
+ DEFINE_RES_IRQ(-1),
+};
+
+static const struct platform_device_info mx31ads_cs8900_devinfo __initconst = {
+ .name = "cs89x0",
+ .id = 0,
+ .res = mx31ads_cs8900_resources,
+ .num_res = ARRAY_SIZE(mx31ads_cs8900_resources),
+};
+
static int __init mxc_init_extuart(void)
{
+ serial_platform_data[0].irq = irq_find_mapping(domain,
+ EXPIO_INT_XUART_INTA);
+ serial_platform_data[1].irq = irq_find_mapping(domain,
+ EXPIO_INT_XUART_INTB);
return platform_device_register(&serial_device);
}
+static void __init mxc_init_ext_ethernet(void)
+{
+ mx31ads_cs8900_resources[1].start =
+ irq_find_mapping(domain, EXPIO_INT_ENET_INT);
+ mx31ads_cs8900_resources[1].end =
+ irq_find_mapping(domain, EXPIO_INT_ENET_INT);
+ platform_device_register_full(
+ (struct platform_device_info *)&mx31ads_cs8900_devinfo);
+}
+
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
@@ -132,12 +163,12 @@ static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
imr_val = __raw_readw(PBC_INTMASK_SET_REG);
int_valid = __raw_readw(PBC_INTSTATUS_REG) & imr_val;
- expio_irq = MXC_EXP_IO_BASE;
+ expio_irq = 0;
for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
if ((int_valid & 1) == 0)
continue;
- generic_handle_irq(expio_irq);
+ generic_handle_irq(irq_find_mapping(domain, expio_irq));
}
}
@@ -147,7 +178,7 @@ static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
*/
static void expio_mask_irq(struct irq_data *d)
{
- u32 expio = MXC_IRQ_TO_EXPIO(d->irq);
+ u32 expio = d->hwirq;
/* mask the interrupt */
__raw_writew(1 << expio, PBC_INTMASK_CLEAR_REG);
__raw_readw(PBC_INTMASK_CLEAR_REG);
@@ -159,7 +190,7 @@ static void expio_mask_irq(struct irq_data *d)
*/
static void expio_ack_irq(struct irq_data *d)
{
- u32 expio = MXC_IRQ_TO_EXPIO(d->irq);
+ u32 expio = d->hwirq;
/* clear the interrupt status */
__raw_writew(1 << expio, PBC_INTSTATUS_REG);
}
@@ -170,7 +201,7 @@ static void expio_ack_irq(struct irq_data *d)
*/
static void expio_unmask_irq(struct irq_data *d)
{
- u32 expio = MXC_IRQ_TO_EXPIO(d->irq);
+ u32 expio = d->hwirq;
/* unmask the interrupt */
__raw_writew(1 << expio, PBC_INTMASK_SET_REG);
}
@@ -184,7 +215,8 @@ static struct irq_chip expio_irq_chip = {
static void __init mx31ads_init_expio(void)
{
- int i;
+ int irq_base;
+ int i, irq;
printk(KERN_INFO "MX31ADS EXPIO(CPLD) hardware\n");
@@ -196,13 +228,21 @@ static void __init mx31ads_init_expio(void)
/* disable the interrupt and clear the status */
__raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG);
__raw_writew(0xFFFF, PBC_INTSTATUS_REG);
- for (i = MXC_EXP_IO_BASE; i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES);
- i++) {
+
+ irq_base = irq_alloc_descs(-1, 0, MXC_MAX_EXP_IO_LINES, numa_node_id());
+ WARN_ON(irq_base < 0);
+
+ domain = irq_domain_add_legacy(NULL, MXC_MAX_EXP_IO_LINES, irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+ WARN_ON(!domain);
+
+ for (i = irq_base; i < irq_base + MXC_MAX_EXP_IO_LINES; i++) {
irq_set_chip_and_handler(i, &expio_irq_chip, handle_level_irq);
set_irq_flags(i, IRQF_VALID);
}
- irq_set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH);
- irq_set_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
+ irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_4));
+ irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+ irq_set_chained_handler(irq, mx31ads_expio_irq_handler);
}
#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
@@ -454,7 +494,6 @@ static int mx31_wm8350_init(struct wm8350 *wm8350)
static struct wm8350_platform_data __initdata mx31_wm8350_pdata = {
.init = mx31_wm8350_init,
- .irq_base = MXC_BOARD_IRQ_START + MXC_MAX_EXP_IO_LINES,
};
#endif
@@ -463,13 +502,17 @@ static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = {
{
I2C_BOARD_INFO("wm8350", 0x1a),
.platform_data = &mx31_wm8350_pdata,
- .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+ /* irq number is run-time assigned */
},
#endif
};
static void __init mxc_init_i2c(void)
{
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+ mx31ads_i2c1_devices[0].irq =
+ gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
+#endif
i2c_register_board_info(1, mx31ads_i2c1_devices,
ARRAY_SIZE(mx31ads_i2c1_devices));
@@ -492,12 +535,15 @@ static void __init mxc_init_audio(void)
mxc_iomux_setup_multiple_pins(ssi_pins, ARRAY_SIZE(ssi_pins), "ssi");
}
-/* static mappings */
+/*
+ * Static mappings, starting from the CS4 start address up to the start address
+ * of the CS8900.
+ */
static struct map_desc mx31ads_io_desc[] __initdata = {
{
- .virtual = MX31_CS4_BASE_ADDR_VIRT,
+ .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
- .length = MX31_CS4_SIZE / 2,
+ .length = CS4_CS8900_MMIO_START,
.type = MT_DEVICE
},
};
@@ -522,6 +568,7 @@ static void __init mx31ads_init(void)
mxc_init_imx_uart();
mxc_init_i2c();
mxc_init_audio();
+ mxc_init_ext_ethernet();
}
static void __init mx31ads_timer_init(void)
@@ -529,18 +576,13 @@ static void __init mx31ads_timer_init(void)
mx31_clocks_init(26000000);
}
-static struct sys_timer mx31ads_timer = {
- .init = mx31ads_timer_init,
-};
-
MACHINE_START(MX31ADS, "Freescale MX31ADS")
/* Maintainer: Freescale Semiconductor, Inc. */
.atag_offset = 0x100,
.map_io = mx31ads_map_io,
.init_early = imx31_init_early,
.init_irq = mx31ads_init_irq,
- .handle_irq = imx31_handle_irq,
- .timer = &mx31ads_timer,
+ .init_time = mx31ads_timer_init,
.init_machine = mx31ads_init,
.restart = mxc_restart,
MACHINE_END
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 08:20:07 +0000