---

yaml --- r: 91181 b: refs/heads/master c: a287453 h: refs/heads/master i: 91179: fac2a26 v: v3
git-mirror · Mar 31, 2008 · 5e4924a · 5e4924a
1 parent b3c220d
commit 5e4924a
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Showing 2 changed files with 137 additions and 8 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 724ce5ee15ff4c4f3035110b683b990a3b33c832
+refs/heads/master: a287453e37a11a128ee0761e1db2e79d7faacdb3
diff --git a/trunk/include/asm-arm/arch-ns9xxx/uncompress.h b/trunk/include/asm-arm/arch-ns9xxx/uncompress.h
@@ -11,20 +11,149 @@
 #ifndef __ASM_ARCH_UNCOMPRESS_H
 #define __ASM_ARCH_UNCOMPRESS_H
 
-static void putc(char c)
+#include <asm/io.h>
+
+#define __REG(x)	((void __iomem __force *)(x))
+
+static void putc_dummy(char c, void __iomem *base)
 {
-	volatile u8 *base = (volatile u8 *)0x40000000;
-	int t = 0x10000;
+	/* nothing */
+}
 
+static void putc_ns9360(char c, void __iomem *base)
+{
+	static int t = 0x10000;
+	do {
+		if (t)
+			--t;
+
+		if (__raw_readl(base + 8) & (1 << 3)) {
+			__raw_writeb(c, base + 16);
+			t = 0x10000;
+			break;
+		}
+	} while (t);
+}
+
+static void putc_a9m9750dev(char c, void __iomem *base)
+{
+	static int t = 0x10000;
+	do {
+		if (t)
+			--t;
+
+		if (__raw_readb(base + 5) & (1 << 5)) {
+			__raw_writeb(c, base);
+			t = 0x10000;
+			break;
+		}
+	} while (t);
+
+}
+
+static void putc_ns921x(char c, void __iomem *base)
+{
+	static int t = 0x10000;
 	do {
-		if (base[5] & 0x20) {
-			base[0] = c;
+		if (t)
+			--t;
+
+		if (!(__raw_readl(base) & (1 << 11))) {
+			__raw_writeb(c, base + 0x0028);
+			t = 0x10000;
 			break;
 		}
-	} while (--t);
+	} while (t);
 }
 
-#define arch_decomp_setup()
+#define MSCS __REG(0xA0900184)
+
+#define NS9360_UARTA	__REG(0x90200040)
+#define NS9360_UARTB	__REG(0x90200000)
+#define NS9360_UARTC	__REG(0x90300000)
+#define NS9360_UARTD	__REG(0x90300040)
+
+#define NS9360_UART_ENABLED(base)					\
+		(__raw_readl(NS9360_UARTA) & (1 << 31))
+
+#define A9M9750DEV_UARTA	__REG(0x40000000)
+
+#define NS921XSYS_CLOCK	__REG(0xa090017c)
+#define NS921X_UARTA	__REG(0x90010000)
+#define NS921X_UARTB	__REG(0x90018000)
+#define NS921X_UARTC	__REG(0x90020000)
+#define NS921X_UARTD	__REG(0x90028000)
+
+#define NS921X_UART_ENABLED(base)					\
+		(__raw_readl((base) + 0x1000) & (1 << 29))
+
+static void autodetect(void (**putc)(char, void __iomem *), void __iomem **base)
+{
+	if (((__raw_readl(MSCS) >> 16) & 0xfe) == 0x00) {
+		/* ns9360 or ns9750 */
+		if (NS9360_UART_ENABLED(NS9360_UARTA)) {
+			*putc = putc_ns9360;
+			*base = NS9360_UARTA;
+			return;
+		} else if (NS9360_UART_ENABLED(NS9360_UARTB)) {
+			*putc = putc_ns9360;
+			*base = NS9360_UARTB;
+			return;
+		} else if (NS9360_UART_ENABLED(NS9360_UARTC)) {
+			*putc = putc_ns9360;
+			*base = NS9360_UARTC;
+			return;
+		} else if (NS9360_UART_ENABLED(NS9360_UARTD)) {
+			*putc = putc_ns9360;
+			*base = NS9360_UARTD;
+			return;
+		} else if (__raw_readl(__REG(0xa09001f4)) == 0xfffff001) {
+			*putc = putc_a9m9750dev;
+			*base = A9M9750DEV_UARTA;
+			return;
+		}
+	} else if (((__raw_readl(MSCS) >> 16) & 0xfe) == 0x02) {
+		/* ns921x */
+		u32 clock = __raw_readl(NS921XSYS_CLOCK);
+
+		if ((clock & (1 << 1)) &&
+				NS921X_UART_ENABLED(NS921X_UARTA)) {
+			*putc = putc_ns921x;
+			*base = NS921X_UARTA;
+			return;
+		} else if ((clock & (1 << 2)) &&
+				NS921X_UART_ENABLED(NS921X_UARTB)) {
+			*putc = putc_ns921x;
+			*base = NS921X_UARTB;
+			return;
+		} else if ((clock & (1 << 3)) &&
+				NS921X_UART_ENABLED(NS921X_UARTC)) {
+			*putc = putc_ns921x;
+			*base = NS921X_UARTC;
+			return;
+		} else if ((clock & (1 << 4)) &&
+				NS921X_UART_ENABLED(NS921X_UARTD)) {
+			*putc = putc_ns921x;
+			*base = NS921X_UARTD;
+			return;
+		}
+	}
+
+	*putc = putc_dummy;
+}
+
+void (*myputc)(char, void __iomem *);
+void __iomem *base;
+
+static void putc(char c)
+{
+	myputc(c, base);
+}
+
+static void arch_decomp_setup(void)
+{
+	autodetect(&myputc, &base);
+}
 #define arch_decomp_wdog()
 
 static void flush(void)