From 68d001928b151a0c50f367c0bdca645b3d5e9ed3 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Wed, 14 Nov 2012 15:04:42 +0100 Subject: [PATCH] mips/malta: fix CBUS UART interrupt pin According to the MIPS Malta Developement Platform User's Manual, the i8259 interrupt controller is supposed to be connected to the hardware IRQ0, and the CBUS UART to the hardware interrupt 2. In QEMU they are both connected to hardware interrupt 0, the CBUS UART interrupt being wrong. This patch fixes that. It should be noted that the irq array in QEMU includes the software interrupts, hence env->irq[2] is the first hardware interrupt. Cc: Ralf Baechle Reviewed-by: Eric Johnson Signed-off-by: Aurelien Jarno --- hw/mips_malta.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/mips_malta.c b/hw/mips_malta.c index 0571d58908..4d2464a02c 100644 --- a/hw/mips_malta.c +++ b/hw/mips_malta.c @@ -861,7 +861,8 @@ void mips_malta_init(QEMUMachineInitArgs *args) be = 0; #endif /* FPGA */ - malta_fpga_init(system_memory, FPGA_ADDRESS, env->irq[2], serial_hds[2]); + /* The CBUS UART is attached to the MIPS CPU INT2 pin, ie interrupt 4 */ + malta_fpga_init(system_memory, FPGA_ADDRESS, env->irq[4], serial_hds[2]); /* Load firmware in flash / BIOS. */ dinfo = drive_get(IF_PFLASH, 0, fl_idx);