From 2ce704dea301fad5df46cdb4f7feb6472fbc7330 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 29 Mar 2022 13:45:32 +0100
Subject: [PATCH] quick-and-dirty QSPI read test

---
 coldboot/coldboot.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/coldboot/coldboot.c b/coldboot/coldboot.c
index 16b7780..5017c39 100644
--- a/coldboot/coldboot.c
+++ b/coldboot/coldboot.c
@@ -68,6 +68,28 @@ int main(void) {
 
 	puts("fw..");
 #if 1
+	volatile uint32_t *qspi = (uint32_t*)0x10000000;
+    // let's not, eh? writel(0xDEAF0123, (unsigned long)&(qspi[0]));
+    // tmp = readl((unsigned long)&(qspi[0]));
+    while (1) {
+        unsigned char c = getchar();
+        putchar(c);
+        if (c == 13) { // if CR send LF
+
+            // quick read
+            tmp = readl((unsigned long)&(qspi[1<<i]));
+            puts("read ");
+            uart_writeuint32(1<<i);
+            puts(" ");
+            uart_writeuint32(tmp);
+            putchar(10);
+            i++;
+        }
+    }
+
+    return 0;
+#endif
+#if 0
 	volatile uint32_t *hyperram = (uint32_t*)0xa0000000;
     writel(0xDEAF0123, (unsigned long)&(hyperram[0]));
     tmp = readl((unsigned long)&(hyperram[0]));
-- 
2.30.2