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-rw-r--r--arch/mips/rb532/Makefile2
-rw-r--r--arch/mips/rb532/Platform7
-rw-r--r--arch/mips/rb532/devices.c111
-rw-r--r--arch/mips/rb532/gpio.c99
-rw-r--r--arch/mips/rb532/irq.c60
-rw-r--r--arch/mips/rb532/prom.c7
-rw-r--r--arch/mips/rb532/serial.c3
-rw-r--r--arch/mips/rb532/setup.c1
8 files changed, 142 insertions, 148 deletions
diff --git a/arch/mips/rb532/Makefile b/arch/mips/rb532/Makefile
index 8f0b6b6a162..efdecdb6e3e 100644
--- a/arch/mips/rb532/Makefile
+++ b/arch/mips/rb532/Makefile
@@ -3,5 +3,3 @@
#
obj-y += irq.o time.o setup.o serial.o prom.o gpio.o devices.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/rb532/Platform b/arch/mips/rb532/Platform
new file mode 100644
index 00000000000..aeec45a7cbb
--- /dev/null
+++ b/arch/mips/rb532/Platform
@@ -0,0 +1,7 @@
+#
+# Routerboard 532
+#
+platform-$(CONFIG_MIKROTIK_RB532) += rb532/
+cflags-$(CONFIG_MIKROTIK_RB532) += \
+ -I$(srctree)/arch/mips/include/asm/mach-rc32434
+load-$(CONFIG_MIKROTIK_RB532) += 0xffffffff80101000
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index c1c29181bd4..3af00b2a26e 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -15,6 +15,7 @@
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/ctype.h>
#include <linux/string.h>
@@ -24,6 +25,7 @@
#include <linux/mtd/partitions.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
+#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
@@ -39,6 +41,29 @@
#define ETH0_RX_DMA_ADDR (DMA0_BASE_ADDR + 0 * DMA_CHAN_OFFSET)
#define ETH0_TX_DMA_ADDR (DMA0_BASE_ADDR + 1 * DMA_CHAN_OFFSET)
+extern unsigned int idt_cpu_freq;
+
+static struct mpmc_device dev3;
+
+void set_latch_u5(unsigned char or_mask, unsigned char nand_mask)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev3.lock, flags);
+
+ dev3.state = (dev3.state | or_mask) & ~nand_mask;
+ writeb(dev3.state, dev3.base);
+
+ spin_unlock_irqrestore(&dev3.lock, flags);
+}
+EXPORT_SYMBOL(set_latch_u5);
+
+unsigned char get_latch_u5(void)
+{
+ return dev3.state;
+}
+EXPORT_SYMBOL(get_latch_u5);
+
static struct resource korina_dev0_res[] = {
{
.name = "korina_regs",
@@ -86,7 +111,6 @@ static struct korina_device korina_dev0_data = {
static struct platform_device korina_dev0 = {
.id = -1,
.name = "korina",
- .dev.platform_data = &korina_dev0_data,
.resource = korina_dev0_res,
.num_resources = ARRAY_SIZE(korina_dev0_res),
};
@@ -176,26 +200,9 @@ static struct platform_device rb532_led = {
.id = -1,
};
-static struct gpio_keys_button rb532_gpio_btn[] = {
- {
- .gpio = 1,
- .code = BTN_0,
- .desc = "S1",
- .active_low = 1,
- }
-};
-
-static struct gpio_keys_platform_data rb532_gpio_btn_data = {
- .buttons = rb532_gpio_btn,
- .nbuttons = ARRAY_SIZE(rb532_gpio_btn),
-};
-
static struct platform_device rb532_button = {
- .name = "gpio-keys",
+ .name = "rb532-button",
.id = -1,
- .dev = {
- .platform_data = &rb532_gpio_btn_data,
- }
};
static struct resource rb532_wdt_res[] = {
@@ -208,51 +215,65 @@ static struct resource rb532_wdt_res[] = {
};
static struct platform_device rb532_wdt = {
- .name = "rc32434_wdt",
- .id = -1,
- .resource = rb532_wdt_res,
+ .name = "rc32434_wdt",
+ .id = -1,
+ .resource = rb532_wdt_res,
.num_resources = ARRAY_SIZE(rb532_wdt_res),
};
+static struct plat_serial8250_port rb532_uart_res[] = {
+ {
+ .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),
+ .irq = UART0_IRQ,
+ .regshift = 2,
+ .iotype = UPIO_MEM,
+ .flags = UPF_BOOT_AUTOCONF,
+ },
+ {
+ .flags = 0,
+ }
+};
+
+static struct platform_device rb532_uart = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = &rb532_uart_res,
+};
+
static struct platform_device *rb532_devs[] = {
&korina_dev0,
&nand_slot0,
&cf_slot0,
&rb532_led,
&rb532_button,
+ &rb532_uart,
&rb532_wdt
};
static void __init parse_mac_addr(char *macstr)
{
- int i, j;
- unsigned char result, value;
+ int i, h, l;
for (i = 0; i < 6; i++) {
- result = 0;
-
if (i != 5 && *(macstr + 2) != ':')
return;
- for (j = 0; j < 2; j++) {
- if (isxdigit(*macstr)
- && (value =
- isdigit(*macstr) ? *macstr -
- '0' : toupper(*macstr) - 'A' + 10) < 16) {
- result = result * 16 + value;
- macstr++;
- } else
- return;
- }
+ h = hex_to_bin(*macstr++);
+ if (h == -1)
+ return;
+
+ l = hex_to_bin(*macstr++);
+ if (l == -1)
+ return;
macstr++;
- korina_dev0_data.mac[i] = result;
+ korina_dev0_data.mac[i] = (h << 4) + l;
}
}
/* NAND definitions */
-#define NAND_CHIP_DELAY 25
+#define NAND_CHIP_DELAY 25
static void __init rb532_nand_setup(void)
{
@@ -272,7 +293,6 @@ static void __init rb532_nand_setup(void)
rb532_nand_data.chip.nr_partitions = ARRAY_SIZE(rb532_partition_info);
rb532_nand_data.chip.partitions = rb532_partition_info;
rb532_nand_data.chip.chip_delay = NAND_CHIP_DELAY;
- rb532_nand_data.chip.options = NAND_NO_AUTOINCR;
}
@@ -291,9 +311,22 @@ static int __init plat_setup_devices(void)
nand_slot0_res[0].start = readl(IDT434_REG_BASE + DEV2BASE);
nand_slot0_res[0].end = nand_slot0_res[0].start + 0x1000;
+ /* Read and map device controller 3 */
+ dev3.base = ioremap_nocache(readl(IDT434_REG_BASE + DEV3BASE), 1);
+
+ if (!dev3.base) {
+ printk(KERN_ERR "rb532: cannot remap device controller 3\n");
+ return -ENXIO;
+ }
+
/* Initialise the NAND device */
rb532_nand_setup();
+ /* set the uart clock to the current cpu frequency */
+ rb532_uart_res[0].uartclk = idt_cpu_freq;
+
+ dev_set_drvdata(&korina_dev0.dev, &korina_dev0_data);
+
return platform_add_devices(rb532_devs, ARRAY_SIZE(rb532_devs));
}
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 0e84c8ab6a3..a18007613c3 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -29,6 +29,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
+#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
@@ -41,72 +42,15 @@ struct rb532_gpio_chip {
void __iomem *regbase;
};
-struct mpmc_device dev3;
-
static struct resource rb532_gpio_reg0_res[] = {
{
- .name = "gpio_reg0",
- .start = REGBASE + GPIOBASE,
- .end = REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) - 1,
- .flags = IORESOURCE_MEM,
- }
-};
-
-static struct resource rb532_dev3_ctl_res[] = {
- {
- .name = "dev3_ctl",
- .start = REGBASE + DEV3BASE,
- .end = REGBASE + DEV3BASE + sizeof(struct dev_reg) - 1,
+ .name = "gpio_reg0",
+ .start = REGBASE + GPIOBASE,
+ .end = REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) - 1,
.flags = IORESOURCE_MEM,
}
};
-void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned val)
-{
- unsigned long flags;
- unsigned data;
- unsigned i = 0;
-
- spin_lock_irqsave(&dev3.lock, flags);
-
- data = readl(IDT434_REG_BASE + reg_offs);
- for (i = 0; i != len; ++i) {
- if (val & (1 << i))
- data |= (1 << (i + bit));
- else
- data &= ~(1 << (i + bit));
- }
- writel(data, (IDT434_REG_BASE + reg_offs));
-
- spin_unlock_irqrestore(&dev3.lock, flags);
-}
-EXPORT_SYMBOL(set_434_reg);
-
-unsigned get_434_reg(unsigned reg_offs)
-{
- return readl(IDT434_REG_BASE + reg_offs);
-}
-EXPORT_SYMBOL(get_434_reg);
-
-void set_latch_u5(unsigned char or_mask, unsigned char nand_mask)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&dev3.lock, flags);
-
- dev3.state = (dev3.state | or_mask) & ~nand_mask;
- writel(dev3.state, &dev3.base);
-
- spin_unlock_irqrestore(&dev3.lock, flags);
-}
-EXPORT_SYMBOL(set_latch_u5);
-
-unsigned char get_latch_u5(void)
-{
- return dev3.state;
-}
-EXPORT_SYMBOL(get_latch_u5);
-
/* rb532_set_bit - sanely set a bit
*
* bitval: new value for the bit
@@ -119,13 +63,11 @@ static inline void rb532_set_bit(unsigned bitval,
unsigned long flags;
u32 val;
- bitval = !!bitval; /* map parameter to {0,1} */
-
local_irq_save(flags);
val = readl(ioaddr);
- val &= ~( ~bitval << offset ); /* unset bit if bitval == 0 */
- val |= ( bitval << offset ); /* set bit if bitval == 1 */
+ val &= ~(!bitval << offset); /* unset bit if bitval == 0 */
+ val |= (!!bitval << offset); /* set bit if bitval == 1 */
writel(val, ioaddr);
local_irq_restore(flags);
@@ -171,8 +113,8 @@ static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
gpch = container_of(chip, struct rb532_gpio_chip, chip);
- if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
- return 1; /* alternate function, GPIOCFG is ignored */
+ /* disable alternate function in case it's set */
+ rb532_set_bit(0, offset, gpch->regbase + GPIOFUNC);
rb532_set_bit(0, offset, gpch->regbase + GPIOCFG);
return 0;
@@ -188,8 +130,8 @@ static int rb532_gpio_direction_output(struct gpio_chip *chip,
gpch = container_of(chip, struct rb532_gpio_chip, chip);
- if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
- return 1; /* alternate function, GPIOCFG is ignored */
+ /* disable alternate function in case it's set */
+ rb532_set_bit(0, offset, gpch->regbase + GPIOFUNC);
/* set the initial output value */
rb532_set_bit(value, offset, gpch->regbase + GPIOD);
@@ -233,17 +175,18 @@ EXPORT_SYMBOL(rb532_gpio_set_istat);
/*
* Configure GPIO alternate function
*/
-static void rb532_gpio_set_func(int bit, unsigned gpio)
+void rb532_gpio_set_func(unsigned gpio)
{
- rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
+ rb532_set_bit(1, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
}
+EXPORT_SYMBOL(rb532_gpio_set_func);
int __init rb532_gpio_init(void)
{
struct resource *r;
r = rb532_gpio_reg0_res;
- rb532_gpio_chip->regbase = ioremap_nocache(r->start, r->end - r->start);
+ rb532_gpio_chip->regbase = ioremap_nocache(r->start, resource_size(r));
if (!rb532_gpio_chip->regbase) {
printk(KERN_ERR "rb532: cannot remap GPIO register 0\n");
@@ -253,20 +196,6 @@ int __init rb532_gpio_init(void)
/* Register our GPIO chip */
gpiochip_add(&rb532_gpio_chip->chip);
- r = rb532_dev3_ctl_res;
- dev3.base = ioremap_nocache(r->start, r->end - r->start);
-
- if (!dev3.base) {
- printk(KERN_ERR "rb532: cannot remap device controller 3\n");
- return -ENXIO;
- }
-
- /* configure CF_GPIO_NUM as CFRDY IRQ source */
- rb532_gpio_set_func(0, CF_GPIO_NUM);
- rb532_gpio_direction_input(&rb532_gpio_chip->chip, CF_GPIO_NUM);
- rb532_gpio_set_ilevel(1, CF_GPIO_NUM);
- rb532_gpio_set_istat(0, CF_GPIO_NUM);
-
return 0;
}
arch_initcall(rb532_gpio_init);
diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c
index 549b46d2fce..3a431e802bb 100644
--- a/arch/mips/rb532/irq.c
+++ b/arch/mips/rb532/irq.c
@@ -21,7 +21,7 @@
*
* Copyright 2002 MontaVista Software Inc.
* Author: MontaVista Software, Inc.
- * stevel@mvista.com or source@mvista.com
+ * stevel@mvista.com or source@mvista.com
*/
#include <linux/bitops.h>
@@ -36,23 +36,22 @@
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/timex.h>
-#include <linux/slab.h>
#include <linux/random.h>
#include <linux/delay.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/mipsregs.h>
-#include <asm/system.h>
#include <asm/mach-rc32434/irq.h>
+#include <asm/mach-rc32434/gpio.h>
struct intr_group {
u32 mask; /* mask of valid bits in pending/mask registers */
volatile u32 *base_addr;
};
-#define RC32434_NR_IRQS (GROUP4_IRQ_BASE + 32)
+#define RC32434_NR_IRQS (GROUP4_IRQ_BASE + 32)
#if (NR_IRQS < RC32434_NR_IRQS)
#error Too little irqs defined. Did you override <asm/irq.h> ?
@@ -111,10 +110,10 @@ static inline void ack_local_irq(unsigned int ip)
clear_c0_cause(ipnum);
}
-static void rb532_enable_irq(unsigned int irq_nr)
+static void rb532_enable_irq(struct irq_data *d)
{
+ unsigned int group, intr_bit, irq_nr = d->irq;
int ip = irq_nr - GROUP0_IRQ_BASE;
- unsigned int group, intr_bit;
volatile unsigned int *addr;
if (ip < 0)
@@ -132,10 +131,10 @@ static void rb532_enable_irq(unsigned int irq_nr)
}
}
-static void rb532_disable_irq(unsigned int irq_nr)
+static void rb532_disable_irq(struct irq_data *d)
{
+ unsigned int group, intr_bit, mask, irq_nr = d->irq;
int ip = irq_nr - GROUP0_IRQ_BASE;
- unsigned int group, intr_bit, mask;
volatile unsigned int *addr;
if (ip < 0) {
@@ -150,6 +149,10 @@ static void rb532_disable_irq(unsigned int irq_nr)
mask |= intr_bit;
WRITE_MASK(addr, mask);
+ /* There is a maximum of 14 GPIO interrupts */
+ if (group == GPIO_MAPPED_IRQ_GROUP && irq_nr <= (GROUP4_IRQ_BASE + 13))
+ rb532_gpio_set_istat(0, irq_nr - GPIO_MAPPED_IRQ_BASE);
+
/*
* if there are no more interrupts enabled in this
* group, disable corresponding IP
@@ -159,18 +162,41 @@ static void rb532_disable_irq(unsigned int irq_nr)
}
}
-static void rb532_mask_and_ack_irq(unsigned int irq_nr)
+static void rb532_mask_and_ack_irq(struct irq_data *d)
+{
+ rb532_disable_irq(d);
+ ack_local_irq(group_to_ip(irq_to_group(d->irq)));
+}
+
+static int rb532_set_type(struct irq_data *d, unsigned type)
{
- rb532_disable_irq(irq_nr);
- ack_local_irq(group_to_ip(irq_to_group(irq_nr)));
+ int gpio = d->irq - GPIO_MAPPED_IRQ_BASE;
+ int group = irq_to_group(d->irq);
+
+ if (group != GPIO_MAPPED_IRQ_GROUP || d->irq > (GROUP4_IRQ_BASE + 13))
+ return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL;
+
+ switch (type) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ rb532_gpio_set_ilevel(1, gpio);
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ rb532_gpio_set_ilevel(0, gpio);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
}
static struct irq_chip rc32434_irq_type = {
.name = "RB532",
- .ack = rb532_disable_irq,
- .mask = rb532_disable_irq,
- .mask_ack = rb532_mask_and_ack_irq,
- .unmask = rb532_enable_irq,
+ .irq_ack = rb532_disable_irq,
+ .irq_mask = rb532_disable_irq,
+ .irq_mask_ack = rb532_mask_and_ack_irq,
+ .irq_unmask = rb532_enable_irq,
+ .irq_set_type = rb532_set_type,
};
void __init arch_init_irq(void)
@@ -180,8 +206,8 @@ void __init arch_init_irq(void)
pr_info("Initializing IRQ's: %d out of %d\n", RC32434_NR_IRQS, NR_IRQS);
for (i = 0; i < RC32434_NR_IRQS; i++)
- set_irq_chip_and_handler(i, &rc32434_irq_type,
- handle_level_irq);
+ irq_set_chip_and_handler(i, &rc32434_irq_type,
+ handle_level_irq);
}
/* Main Interrupt dispatcher */
diff --git a/arch/mips/rb532/prom.c b/arch/mips/rb532/prom.c
index 46ca24dbcc2..a757ded437c 100644
--- a/arch/mips/rb532/prom.c
+++ b/arch/mips/rb532/prom.c
@@ -69,15 +69,14 @@ static inline unsigned long tag2ul(char *arg, const char *tag)
void __init prom_setup_cmdline(void)
{
- char cmd_line[CL_SIZE];
+ static char cmd_line[COMMAND_LINE_SIZE] __initdata;
char *cp, *board;
int prom_argc;
- char **prom_argv, **prom_envp;
+ char **prom_argv;
int i;
prom_argc = fw_arg0;
prom_argv = (char **) fw_arg1;
- prom_envp = (char **) fw_arg2;
cp = cmd_line;
/* Note: it is common that parameters start
@@ -115,7 +114,7 @@ void __init prom_setup_cmdline(void)
strcpy(cp, arcs_cmdline);
cp += strlen(arcs_cmdline);
}
- cmd_line[CL_SIZE-1] = '\0';
+ cmd_line[COMMAND_LINE_SIZE - 1] = '\0';
strcpy(arcs_cmdline, cmd_line);
}
diff --git a/arch/mips/rb532/serial.c b/arch/mips/rb532/serial.c
index 3e0d7ec3a57..70482540b3d 100644
--- a/arch/mips/rb532/serial.c
+++ b/arch/mips/rb532/serial.c
@@ -29,6 +29,7 @@
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
+#include <linux/irq.h>
#include <asm/serial.h>
#include <asm/mach-rc32434/rb.h>
@@ -36,7 +37,7 @@
extern unsigned int idt_cpu_freq;
static struct uart_port rb532_uart = {
- .type = PORT_16550A,
+ .flags = UPF_BOOT_AUTOCONF,
.line = 0,
.irq = UART0_IRQ,
.iotype = UPIO_MEM,
diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c
index 50f530f5b60..d0c64e71d53 100644
--- a/arch/mips/rb532/setup.c
+++ b/arch/mips/rb532/setup.c
@@ -3,6 +3,7 @@
*/
#include <linux/init.h>
+#include <linux/export.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 03:01:31 +0000