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openbios
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SPARC64: use serial console when QEMU is launched with -vga none 

If no display device has been installed in the DT e.g. passing -vga none into
the QEMU command line then fall back to using the serial console as already
occurs when launching QEMU in -nographic mode.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Mark Cave-Ayland 2019-06-23 14:57:37 +01:00
parent 6e1e58dddc
commit c79e0ecb84
1 changed files with 11 additions and 2 deletions
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13
arch/sparc64/openbios.c
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@ -537,10 +537,11 @@ void arch_nvram_get(char *data)
uint32_t temp;
uint64_t ram_size;
uint32_t clock_frequency;
uint16_t machine_id;
uint16_t machine_id, nographic;
const char *stdin_path, *stdout_path;
char *bootorder_file, *boot_path;
uint32_t bootorder_sz, sz;
phandle_t display_ph;
fw_cfg_init();
@ -701,7 +702,15 @@ void arch_nvram_get(char *data)
push_str("/chosen");
fword("find-device");
if (fw_cfg_read_i16(FW_CFG_NOGRAPHIC)) {
nographic = fw_cfg_read_i16(FW_CFG_NOGRAPHIC);
/* Check to see if any framebuffer present */
display_ph = dt_iterate_type(0, "display");
if (display_ph == 0) {
nographic = 1;
}
if (nographic) {
stdin_path = stdout_path = "ttya";
} else {
stdin_path = "keyboard";