[Blackfin] arch: Added support for 8250-class UARTs in HV Sistemas H8606 board, modification in 8250.c driver for correct compilation with Blackfin

Signed-off-by: Javier Herrero <jherrero@hvsistemas.es>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 49 insertions, 2 deletions

diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 6bcf4047f89..675fd1c6280 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -40,6 +40,7 @@
 #endif
 #include <linux/pata_platform.h>
 #include <linux/irq.h>
+
 #include <asm/dma.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/reboot.h>
@@ -303,7 +304,49 @@ static struct platform_device bfin_uart_device = {
 };
 #endif
 
-static struct platform_device *stamp_devices[] __initdata = {
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+
+#include <linux/serial_8250.h>
+#include <linux/serial.h>
+
+/*
+ * Configuration for two 16550 UARTS in FPGA at addresses 0x20200000 and 0x202000010.
+ * running at half system clock, both with interrupt output or-ed to PF8. Change to
+ * suit different FPGA configuration, or to suit real 16550 UARTS connected to the bus
+ */
+
+static struct plat_serial8250_port serial8250_platform_data [] = {
+        {
+                .membase = 0x20200000,
+                .mapbase = 0x20200000,
+                .irq = IRQ_PF8,
+                .flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE,
+                .iotype = UPIO_MEM,
+                .regshift = 1,
+                .uartclk = 66666667,
+        }, {
+                .membase = 0x20200010,
+                .mapbase = 0x20200010,
+                .irq = IRQ_PF8,
+                .flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE,
+                .iotype = UPIO_MEM,
+                .regshift = 1,
+                .uartclk = 66666667,
+        }, {
+        }
+};
+
+static struct platform_device serial8250_device = {
+        .id             = PLAT8250_DEV_PLATFORM,
+        .name           = "serial8250",
+        .dev            = {
+                .platform_data = serial8250_platform_data,
+        },
+};
+
+#endif
+
+static struct platform_device *h8606_devices[] __initdata = {
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
         &rtc_device,
 #endif
@@ -327,13 +370,17 @@ static struct platform_device *stamp_devices[] __initdata = {
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
         &bfin_uart_device,
 #endif
+
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
+        &serial8250_device,
+#endif
 };
 
 static int __init H8606_init(void)
 {
         printk(KERN_INFO "HV Sistemas H8606 board support by http://www.hvsistemas.com\n");
         printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
-        platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
+        platform_add_devices(h8606_devices, ARRAY_SIZE(h8606_devices));
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
         spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif