RealView: Move the UART definitions to EB specific files

Since the PB1176 has different UART base addresses, this patch moves
the definitions form platorm.h to board-eb.h. It also modifies
uncompress.h to detect the platform type at run-time.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm/mach-realview/realview_eb.c

@@ -78,8 +78,8 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
 	},
 #ifdef CONFIG_DEBUG_LL
 	{
-		.virtual	= IO_ADDRESS(REALVIEW_UART0_BASE),
-		.pfn		= __phys_to_pfn(REALVIEW_UART0_BASE),
+		.virtual	= IO_ADDRESS(REALVIEW_EB_UART0_BASE),
+		.pfn		= __phys_to_pfn(REALVIEW_EB_UART0_BASE),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
 	}
@@ -164,14 +164,14 @@ static void __init realview_eb_map_io(void)
  */
 #define SCI_IRQ		{ IRQ_EB_SCI, NO_IRQ }
 #define SCI_DMA		{ 7, 6 }
-#define UART0_IRQ	{ IRQ_EB_UART0, NO_IRQ }
-#define UART0_DMA	{ 15, 14 }
-#define UART1_IRQ	{ IRQ_EB_UART1, NO_IRQ }
-#define UART1_DMA	{ 13, 12 }
-#define UART2_IRQ	{ IRQ_EB_UART2, NO_IRQ }
-#define UART2_DMA	{ 11, 10 }
-#define UART3_IRQ	{ IRQ_EB_UART3, NO_IRQ }
-#define UART3_DMA	{ 0x86, 0x87 }
+#define EB_UART0_IRQ	{ IRQ_EB_UART0, NO_IRQ }
+#define EB_UART0_DMA	{ 15, 14 }
+#define EB_UART1_IRQ	{ IRQ_EB_UART1, NO_IRQ }
+#define EB_UART1_DMA	{ 13, 12 }
+#define EB_UART2_IRQ	{ IRQ_EB_UART2, NO_IRQ }
+#define EB_UART2_DMA	{ 11, 10 }
+#define EB_UART3_IRQ	{ IRQ_EB_UART3, NO_IRQ }
+#define EB_UART3_DMA	{ 0x86, 0x87 }
 #define SSP_IRQ		{ IRQ_EB_SSP, NO_IRQ }
 #define SSP_DMA		{ 9, 8 }
 
@@ -180,7 +180,7 @@ AMBA_DEVICE(aaci,  "fpga:04", AACI,     NULL);
 AMBA_DEVICE(mmc0,  "fpga:05", MMCI0,    &realview_mmc0_plat_data);
 AMBA_DEVICE(kmi0,  "fpga:06", KMI0,     NULL);
 AMBA_DEVICE(kmi1,  "fpga:07", KMI1,     NULL);
-AMBA_DEVICE(uart3, "fpga:09", UART3,    NULL);
+AMBA_DEVICE(uart3, "fpga:09", EB_UART3, NULL);
 
 /* DevChip Primecells */
 AMBA_DEVICE(smc,   "dev:00",  SMC,      NULL);
@@ -193,9 +193,9 @@ AMBA_DEVICE(gpio1, "dev:e5",  GPIO1,    NULL);
 AMBA_DEVICE(gpio2, "dev:e6",  GPIO2,    NULL);
 AMBA_DEVICE(rtc,   "dev:e8",  RTC,      NULL);
 AMBA_DEVICE(sci0,  "dev:f0",  SCI,      NULL);
-AMBA_DEVICE(uart0, "dev:f1",  UART0,    NULL);
-AMBA_DEVICE(uart1, "dev:f2",  UART1,    NULL);
-AMBA_DEVICE(uart2, "dev:f3",  UART2,    NULL);
+AMBA_DEVICE(uart0, "dev:f1",  EB_UART0, NULL);
+AMBA_DEVICE(uart1, "dev:f2",  EB_UART1, NULL);
+AMBA_DEVICE(uart2, "dev:f3",  EB_UART2, NULL);
 AMBA_DEVICE(ssp0,  "dev:f4",  SSP,      NULL);
 
 static struct amba_device *amba_devs[] __initdata = {
@@ -388,8 +388,8 @@ static void __init realview_eb_init(void)
 
 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_UART0_BASE,
-	.io_pg_offst	= (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
+	.phys_io	= REALVIEW_EB_UART0_BASE,
+	.io_pg_offst	= (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
 	.map_io		= realview_eb_map_io,
 	.init_irq	= gic_init_irq,

include/asm-arm/arch-realview/board-eb.h

@@ -26,6 +26,10 @@
 /*
  * RealView EB + ARM11MPCore peripheral addresses
  */
+#define REALVIEW_EB_UART0_BASE		0x10009000	/* UART 0 */
+#define REALVIEW_EB_UART1_BASE		0x1000A000	/* UART 1 */
+#define REALVIEW_EB_UART2_BASE		0x1000B000	/* UART 2 */
+#define REALVIEW_EB_UART3_BASE		0x1000C000	/* UART 3 */
 #define REALVIEW_EB_TIMER0_1_BASE	0x10011000	/* Timer 0 and 1 */
 #define REALVIEW_EB_TIMER2_3_BASE	0x10012000	/* Timer 2 and 3 */
 #define REALVIEW_EB_GIC_CPU_BASE	0x10040000	/* Generic interrupt controller CPU interface */

include/asm-arm/arch-realview/platform.h

@@ -182,10 +182,6 @@
 #define REALVIEW_KMI0_BASE            0x10006000	/* KMI interface */
 #define REALVIEW_KMI1_BASE            0x10007000	/* KMI 2nd interface */
 #define REALVIEW_CHAR_LCD_BASE        0x10008000	/* Character LCD */
-#define REALVIEW_UART0_BASE           0x10009000	/* UART 0 */
-#define REALVIEW_UART1_BASE           0x1000A000	/* UART 1 */
-#define REALVIEW_UART2_BASE           0x1000B000	/* UART 2 */
-#define REALVIEW_UART3_BASE           0x1000C000	/* UART 3 */
 #define REALVIEW_SSP_BASE             0x1000D000	/* Synchronous Serial Port */
 #define REALVIEW_SCI_BASE             0x1000E000	/* Smart card controller */
 	/* Reserved 0x1000F000 */

include/asm-arm/arch-realview/uncompress.h

@@ -18,28 +18,44 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include <asm/hardware.h>
+#include <asm/mach-types.h>
 
-#include <asm/arch/platform.h>
+#include <asm/arch/board-eb.h>
 
-#define AMBA_UART_DR	(*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x00))
-#define AMBA_UART_LCRH	(*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x2c))
-#define AMBA_UART_CR	(*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x30))
-#define AMBA_UART_FR	(*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x18))
+#define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))
+#define AMBA_UART_LCRH(base)	(*(volatile unsigned char *)((base) + 0x2c))
+#define AMBA_UART_CR(base)	(*(volatile unsigned char *)((base) + 0x30))
+#define AMBA_UART_FR(base)	(*(volatile unsigned char *)((base) + 0x18))
+
+/*
+ * Return the UART base address
+ */
+static inline unsigned long get_uart_base(void)
+{
+	if (machine_is_realview_eb())
+		return REALVIEW_EB_UART0_BASE;
+	else
+		return 0;
+}
 
 /*
  * This does not append a newline
  */
 static inline void putc(int c)
 {
-	while (AMBA_UART_FR & (1 << 5))
+	unsigned long base = get_uart_base();
+
+	while (AMBA_UART_FR(base) & (1 << 5))
 		barrier();
 
-	AMBA_UART_DR = c;
+	AMBA_UART_DR(base) = c;
 }
 
 static inline void flush(void)
 {
-	while (AMBA_UART_FR & (1 << 3))
+	unsigned long base = get_uart_base();
+
+	while (AMBA_UART_FR(base) & (1 << 3))
 		barrier();
 }