From 3a0505d2f6f58778edc6407162566e782086105d Mon Sep 17 00:00:00 2001
From: Mariano Alvira <mar@devl.org>
Date: Fri, 10 Apr 2009 16:01:57 -0400
Subject: [PATCH] test to make a rom image

---
 tests/romimg.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 tests/romimg.c

diff --git a/tests/romimg.c b/tests/romimg.c
new file mode 100644
index 000000000..51ba68d8b
--- /dev/null
+++ b/tests/romimg.c
@@ -0,0 +1,91 @@
+#define GPIO_FUNC_SEL0  0x80000018 /* GPIO 15 - 0;  2 bit blocks */
+
+#define BASE_UART1      0x80005000
+#define UART1_CON       0x80005000
+#define UART1_STAT      0x80005004
+#define UART1_DATA      0x80005008
+#define UR1CON          0x8000500c
+#define UT1CON          0x80005010
+#define UART1_CTS       0x80005014
+#define UART1_BR        0x80005018
+
+#include "embedded_types.h"
+
+#define reg(x) (*(volatile uint32_t *)(x))
+
+#define DELAY 400000
+
+void putc(uint8_t c);
+void puts(uint8_t *s);
+void put_hex(uint8_t x);
+void put_hex16(uint16_t x);
+void put_hex32(uint32_t x);
+
+const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
+		 '8','9','a','b','c','d','e','f'};
+
+#define DUMP_BASE 0x00000000
+#define DUMP_LEN  0x00014000
+//#define DUMP_LEN  16
+
+__attribute__ ((section ("startup")))
+void main(void) {
+	volatile uint32_t i;
+//	volatile uint8_t *data;
+	volatile uint8_t *data;
+
+	/* Restore UART regs. to default */
+	/* in case there is still bootloader state leftover */
+
+	reg(UART1_CON) = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
+
+	/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
+	#define INC 767
+	#define MOD 9999
+	reg(UART1_BR) = INC<<16 | MOD; 
+
+	/* see Section 11.5.1.2 Alternate Modes */
+	/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
+	/* From the datasheet: "The peripheral function will control operation of the pad IF */
+	/* THE PERIPHERAL IS ENABLED. */
+	reg(UART1_CON) = 0x00000003; /* enable receive and transmit */
+	reg(GPIO_FUNC_SEL0) = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
+
+	for(data=DUMP_BASE; data<(DUMP_BASE+DUMP_LEN); data++) {
+		putc(*data);
+	}
+
+	while(1);
+
+}
+
+void putc(uint8_t c) {
+	while(reg(UT1CON)==31); /* wait for there to be room in the buffer */
+	reg(UART1_DATA) = c;
+}
+	
+void puts(uint8_t *s) {
+	while(s && *s!=0) {
+		putc(*s++);
+	}
+}
+
+void put_hex(uint8_t x)
+{
+        putc(hex[x >> 4]);
+        putc(hex[x & 15]);
+}
+
+void put_hex16(uint16_t x)
+{
+        put_hex((x >> 8) & 0xFF);
+        put_hex((x) & 0xFF);
+}
+
+void put_hex32(uint32_t x)
+{
+        put_hex((x >> 24) & 0xFF);
+        put_hex((x >> 16) & 0xFF);
+        put_hex((x >> 8) & 0xFF);
+        put_hex((x) & 0xFF);
+}