lib/arm/io.c

3  * devices exposed from QEMU, e.g. pl011 and chr-testdev. That's
13 #include <chr-testdev.h>
23  * Use this guess for the uart base in order to make an attempt at
25  * base address that we read from the device tree later. This is
26  * the address we expect the virtual machine manager to put in
36 	 * kvm-unit-tests uses the uart only for output. Both uart models have  in uart0_init_fdt()
38 	 * need to treat them separately.  in uart0_init_fdt()
45 	assert(ret >= 0 || ret == -FDT_ERR_NOTFOUND);  in uart0_init_fdt()
47 	if (ret == -FDT_ERR_NOTFOUND) {  in uart0_init_fdt()
51 			assert(ret == 0 || ret == -FDT_ERR_NOTFOUND);  in uart0_init_fdt()
82 	assert_msg(spcr, "Unable to find ACPI SPCR");  in uart0_init_acpi()
83 	uart0_base = ioremap(spcr->serial_port.address, spcr->serial_port.bit_width);  in uart0_init_acpi()
120 	int c = -1;  in __getchar()
138  * Defining halt to take 'code' as an argument guarantees that it will
139  * be in x0/r0 when we halt. That gives us a final chance to see the exit
149 	 * up when chr-testdev is not present.  in exit()