+++ /dev/null
---- a/arch/arm/mach-ixp4xx/cambria-setup.c
-+++ b/arch/arm/mach-ixp4xx/cambria-setup.c
-@@ -34,6 +34,7 @@
- #include <asm/mach/arch.h>
- #include <asm/mach/flash.h>
- #include <asm/setup.h>
-+#include <linux/irq.h>
-
- struct cambria_board_info {
- unsigned char *model;
-@@ -127,6 +128,45 @@ static struct platform_device cambria_ua
- .resource = &cambria_uart_resource,
- };
-
-+static struct resource cambria_optional_uart_resources[] = {
-+ {
-+ .start = 0x52000000,
-+ .end = 0x52000fff,
-+ .flags = IORESOURCE_MEM
-+ },
-+ {
-+ .start = 0x53000000,
-+ .end = 0x53000fff,
-+ .flags = IORESOURCE_MEM
-+ }
-+};
-+
-+static struct plat_serial8250_port cambria_optional_uart_data[] = {
-+ {
-+ .flags = UPF_BOOT_AUTOCONF,
-+ .iotype = UPIO_MEM_DELAY,
-+ .regshift = 0,
-+ .uartclk = 1843200,
-+ .rw_delay = 2,
-+ },
-+ {
-+ .flags = UPF_BOOT_AUTOCONF,
-+ .iotype = UPIO_MEM_DELAY,
-+ .regshift = 0,
-+ .uartclk = 1843200,
-+ .rw_delay = 2,
-+ },
-+ { },
-+};
-+
-+static struct platform_device cambria_optional_uart = {
-+ .name = "serial8250",
-+ .id = PLAT8250_DEV_PLATFORM1,
-+ .dev.platform_data = cambria_optional_uart_data,
-+ .num_resources = 2,
-+ .resource = cambria_optional_uart_resources,
-+};
-+
- static struct resource cambria_pata_resources[] = {
- {
- .flags = IORESOURCE_MEM
-@@ -283,6 +323,19 @@ static void __init cambria_gw23xx_setup(
-
- static void __init cambria_gw2350_setup(void)
- {
-+ *IXP4XX_EXP_CS2 = 0xBFFF3C43;
-+ set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
-+ cambria_optional_uart_data[0].mapbase = 0x52FF0000;
-+ cambria_optional_uart_data[0].membase = (void __iomem *)ioremap(0x52FF0000, 0x0fff);
-+ cambria_optional_uart_data[0].irq = IRQ_IXP4XX_GPIO3;
-+
-+ *IXP4XX_EXP_CS3 = 0xBFFF3C43;
-+ set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
-+ cambria_optional_uart_data[1].mapbase = 0x53FF0000;
-+ cambria_optional_uart_data[1].membase = (void __iomem *)ioremap(0x53FF0000, 0x0fff);
-+ cambria_optional_uart_data[1].irq = IRQ_IXP4XX_GPIO4;
-+
-+ platform_device_register(&cambria_optional_uart);
- platform_device_register(&cambria_npec_device);
- platform_device_register(&cambria_npea_device);
-
-@@ -294,6 +347,19 @@ static void __init cambria_gw2350_setup(
-
- static void __init cambria_gw2358_setup(void)
- {
-+ *IXP4XX_EXP_CS3 = 0xBFFF3C43;
-+ set_irq_type(IRQ_IXP4XX_GPIO3, IRQ_TYPE_EDGE_RISING);
-+ cambria_optional_uart_data[0].mapbase = 0x53FC0000;
-+ cambria_optional_uart_data[0].membase = (void __iomem *)ioremap(0x53FC0000, 0x0fff);
-+ cambria_optional_uart_data[0].irq = IRQ_IXP4XX_GPIO3;
-+
-+ set_irq_type(IRQ_IXP4XX_GPIO4, IRQ_TYPE_EDGE_RISING);
-+ cambria_optional_uart_data[1].mapbase = 0x53F80000;
-+ cambria_optional_uart_data[1].membase = (void __iomem *)ioremap(0x53F80000, 0x0fff);
-+ cambria_optional_uart_data[1].irq = IRQ_IXP4XX_GPIO4;
-+
-+ platform_device_register(&cambria_optional_uart);
-+
- platform_device_register(&cambria_npec_device);
- platform_device_register(&cambria_npea_device);
-
---- a/include/linux/serial_8250.h
-+++ b/include/linux/serial_8250.h
-@@ -27,6 +27,7 @@ struct plat_serial8250_port {
- void *private_data;
- unsigned char regshift; /* register shift */
- unsigned char iotype; /* UPIO_* */
-+ unsigned int rw_delay; /* udelay for slower busses IXP4XX Expansion Bus */
- unsigned char hub6;
- upf_t flags; /* UPF_* flags */
- unsigned int type; /* If UPF_FIXED_TYPE */
---- a/include/linux/serial_core.h
-+++ b/include/linux/serial_core.h
-@@ -288,6 +288,7 @@ struct uart_port {
- #define UPIO_TSI (5) /* Tsi108/109 type IO */
- #define UPIO_DWAPB (6) /* DesignWare APB UART */
- #define UPIO_RM9000 (7) /* RM9000 type IO */
-+#define UPIO_MEM_DELAY (8)
-
- unsigned int read_status_mask; /* driver specific */
- unsigned int ignore_status_mask; /* driver specific */
-@@ -330,6 +331,7 @@ struct uart_port {
-
- unsigned int mctrl; /* current modem ctrl settings */
- unsigned int timeout; /* character-based timeout */
-+ unsigned int rw_delay; /* udelay for slow busses, IXP4XX Expansion Bus */
- unsigned int type; /* port type */
- const struct uart_ops *ops;
- unsigned int custom_divisor;
---- a/drivers/serial/8250.c
-+++ b/drivers/serial/8250.c
-@@ -409,6 +409,20 @@ static void mem_serial_out(struct uart_p
- writeb(value, p->membase + offset);
- }
-
-+static unsigned int memdelay_serial_in(struct uart_port *p, int offset)
-+{
-+ struct uart_8250_port *up = (struct uart_8250_port *)p;
-+ udelay(up->port.rw_delay);
-+ return mem_serial_in(p, offset);
-+}
-+
-+static void memdelay_serial_out(struct uart_port *p, int offset, int value)
-+{
-+ struct uart_8250_port *up = (struct uart_8250_port *)p;
-+ udelay(up->port.rw_delay);
-+ mem_serial_out(p, offset, value);
-+}
-+
- static void mem32_serial_out(struct uart_port *p, int offset, int value)
- {
- offset = map_8250_out_reg(p, offset) << p->regshift;
-@@ -502,6 +516,11 @@ static void set_io_from_upio(struct uart
- p->serial_out = mem32_serial_out;
- break;
-
-+ case UPIO_MEM_DELAY:
-+ p->serial_in = memdelay_serial_in;
-+ p->serial_out = memdelay_serial_out;
-+ break;
-+
- #ifdef CONFIG_SERIAL_8250_AU1X00
- case UPIO_AU:
- p->serial_in = au_serial_in;
-@@ -534,6 +553,7 @@ serial_out_sync(struct uart_8250_port *u
- switch (p->iotype) {
- case UPIO_MEM:
- case UPIO_MEM32:
-+ case UPIO_MEM_DELAY:
- #ifdef CONFIG_SERIAL_8250_AU1X00
- case UPIO_AU:
- #endif
-@@ -2450,6 +2470,7 @@ static int serial8250_request_std_resour
- case UPIO_MEM32:
- case UPIO_MEM:
- case UPIO_DWAPB:
-+ case UPIO_MEM_DELAY:
- if (!up->port.mapbase)
- break;
-
-@@ -2487,6 +2508,7 @@ static void serial8250_release_std_resou
- case UPIO_MEM32:
- case UPIO_MEM:
- case UPIO_DWAPB:
-+ case UPIO_MEM_DELAY:
- if (!up->port.mapbase)
- break;
-
-@@ -2964,6 +2986,7 @@ static int __devinit serial8250_probe(st
- port.serial_in = p->serial_in;
- port.serial_out = p->serial_out;
- port.dev = &dev->dev;
-+ port.rw_delay = p->rw_delay;
- port.irqflags |= irqflag;
- ret = serial8250_register_port(&port);
- if (ret < 0) {
-@@ -3113,6 +3136,7 @@ int serial8250_register_port(struct uart
- uart->port.iotype = port->iotype;
- uart->port.flags = port->flags | UPF_BOOT_AUTOCONF;
- uart->port.mapbase = port->mapbase;
-+ uart->port.rw_delay = port->rw_delay;
- uart->port.private_data = port->private_data;
- if (port->dev)
- uart->port.dev = port->dev;
---- a/drivers/serial/serial_core.c
-+++ b/drivers/serial/serial_core.c
-@@ -2144,6 +2144,7 @@ uart_report_port(struct uart_driver *drv
- snprintf(address, sizeof(address),
- "I/O 0x%lx offset 0x%x", port->iobase, port->hub6);
- break;
-+ case UPIO_MEM_DELAY:
- case UPIO_MEM:
- case UPIO_MEM32:
- case UPIO_AU:
-@@ -2557,6 +2558,7 @@ int uart_match_port(struct uart_port *po
- case UPIO_HUB6:
- return (port1->iobase == port2->iobase) &&
- (port1->hub6 == port2->hub6);
-+ case UPIO_MEM_DELAY:
- case UPIO_MEM:
- case UPIO_MEM32:
- case UPIO_AU:
projects / openwrt.git / blobdiff