From 357102ee9ccaea7e26c95e409c4c364a63aed423 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Fri, 25 Mar 2022 12:34:00 -0700
Subject: 19200 baud over 3MHz

---
 kernel/cpu/irq.c      | 1 +
 kernel/drivers/uart.c | 4 ++--
 usr/main.c            | 1 -
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/cpu/irq.c b/kernel/cpu/irq.c
index 09b3346..f718b7e 100644
--- a/kernel/cpu/irq.c
+++ b/kernel/cpu/irq.c
@@ -114,6 +114,7 @@ unsigned long c_fiq_handler(void)
 	if (source & (1 << 3) && irqs[LOCAL_TIMER_IRQ].handler != 0) {
 		add_thread(irqs[LOCAL_TIMER_IRQ].handler, 0, 1);
 		write_cntv_tval(cntfrq);
+		return 1;
 	}
 	return 0;
 }
diff --git a/kernel/drivers/uart.c b/kernel/drivers/uart.c
index 2107a6f..33f9e82 100644
--- a/kernel/drivers/uart.c
+++ b/kernel/drivers/uart.c
@@ -31,8 +31,8 @@ void uart_init(void)
 	// Clear pending interrupts
 	store32(0x7FF, UART0_ICR);
 	// Set to 3Mhz
-	store32(10, UART0_IBRD);
-	store32(20, UART0_FBRD);
+	store32(9, UART0_IBRD);
+	store32(49, UART0_FBRD);
 	// Enable FIFO and 8 bit transmission
 	store32((1<<4)|(1<<5)|(1<<6), UART0_LCRH);
 	// Mask all interrupts
diff --git a/usr/main.c b/usr/main.c
index 85491e1..415d6c9 100644
--- a/usr/main.c
+++ b/usr/main.c
@@ -59,5 +59,4 @@ void main(void)
 	subscribe_irq(GPIO_BANK_1_IRQ, gptest, &gpinfo);
 	add_thread(loop, 0, 8);
 	add_thread(consumer, 0, 3);
-	uart_string("00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000");
 }
-- 
cgit v1.2.1