MXC uncompress macros: determine uart base by machine type
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index de6fe03..98c8a602 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -26,8 +26,11 @@
#define __MXC_BOOT_UNCOMPRESS
#include <mach/hardware.h>
+#include <asm/mach-types.h>
-#define UART(x) (*(volatile unsigned long *)(serial_port + (x)))
+static unsigned long uart_base;
+
+#define UART(x) (*(volatile unsigned long *)(uart_base + (x)))
#define USR2 0x98
#define USR2_TXFE (1<<14)
@@ -46,19 +49,10 @@
static void putc(int ch)
{
- static unsigned long serial_port = 0;
-
- if (unlikely(serial_port == 0)) {
- do {
- serial_port = UART1_BASE_ADDR;
- if (UART(UCR1) & UCR1_UARTEN)
- break;
- serial_port = UART2_BASE_ADDR;
- if (UART(UCR1) & UCR1_UARTEN)
- break;
- return;
- } while (0);
- }
+ if (!uart_base)
+ return;
+ if (!(UART(UCR1) & UCR1_UARTEN))
+ return;
while (!(UART(USR2) & USR2_TXFE))
barrier();
@@ -68,11 +62,41 @@
#define flush() do { } while (0)
-/*
- * nothing to do
- */
-#define arch_decomp_setup()
+#define MX1_UART1_BASE_ADDR 0x00206000
+#define MX2X_UART1_BASE_ADDR 0x1000a000
+#define MX3X_UART1_BASE_ADDR 0x43F90000
+static __inline__ void __arch_decomp_setup(unsigned long arch_id)
+{
+ switch (arch_id) {
+ case MACH_TYPE_MX1ADS:
+ case MACH_TYPE_SCB9328:
+ uart_base = MX1_UART1_BASE_ADDR;
+ break;
+ case MACH_TYPE_IMX27LITE:
+ case MACH_TYPE_MX27_3DS:
+ case MACH_TYPE_MX27ADS:
+ case MACH_TYPE_PCM038:
+ case MACH_TYPE_MX21ADS:
+ uart_base = MX2X_UART1_BASE_ADDR;
+ break;
+ case MACH_TYPE_MX31LITE:
+ case MACH_TYPE_ARMADILLO5X0:
+ case MACH_TYPE_MX31MOBOARD:
+ case MACH_TYPE_QONG:
+ case MACH_TYPE_MX31_3DS:
+ case MACH_TYPE_PCM037:
+ case MACH_TYPE_MX31ADS:
+ case MACH_TYPE_MX35_3DS:
+ case MACH_TYPE_PCM043:
+ uart_base = MX3X_UART1_BASE_ADDR;
+ break;
+ default:
+ break;
+ }
+}
+
+#define arch_decomp_setup() __arch_decomp_setup(arch_id)
#define arch_decomp_wdog()
#endif /* __ASM_ARCH_MXC_UNCOMPRESS_H__ */
