diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/lpar.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 76 |
1 files changed, 34 insertions, 42 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index cf1bc11b3346..1fe445ab78a6 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -24,6 +24,7 @@ #include <linux/config.h> #include <linux/kernel.h> #include <linux/dma-mapping.h> +#include <linux/console.h> #include <asm/processor.h> #include <asm/mmu.h> #include <asm/page.h> @@ -60,7 +61,7 @@ extern void pSeries_find_serial_port(void); int vtermno; /* virtual terminal# for udbg */ #define __ALIGNED__ __attribute__((__aligned__(sizeof(long)))) -static void udbg_hvsi_putc(unsigned char c) +static void udbg_hvsi_putc(char c) { /* packet's seqno isn't used anyways */ uint8_t packet[] __ALIGNED__ = { 0xff, 5, 0, 0, c }; @@ -111,7 +112,7 @@ static int udbg_hvsi_getc_poll(void) return ch; } -static unsigned char udbg_hvsi_getc(void) +static int udbg_hvsi_getc(void) { int ch; for (;;) { @@ -127,7 +128,7 @@ static unsigned char udbg_hvsi_getc(void) } } -static void udbg_putcLP(unsigned char c) +static void udbg_putcLP(char c) { char buf[16]; unsigned long rc; @@ -172,7 +173,7 @@ static int udbg_getc_pollLP(void) return ch; } -static unsigned char udbg_getcLP(void) +static int udbg_getcLP(void) { int ch; for (;;) { @@ -191,7 +192,7 @@ static unsigned char udbg_getcLP(void) /* call this from early_init() for a working debug console on * vterm capable LPAR machines */ -void udbg_init_debug_lpar(void) +void __init udbg_init_debug_lpar(void) { vtermno = 0; udbg_putc = udbg_putcLP; @@ -200,63 +201,54 @@ void udbg_init_debug_lpar(void) } /* returns 0 if couldn't find or use /chosen/stdout as console */ -int find_udbg_vterm(void) +void __init find_udbg_vterm(void) { struct device_node *stdout_node; u32 *termno; char *name; - int found = 0; + int add_console; /* find the boot console from /chosen/stdout */ if (!of_chosen) - return 0; + return; name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) - return 0; + return; stdout_node = of_find_node_by_path(name); if (!stdout_node) - return 0; - - /* now we have the stdout node; figure out what type of device it is. */ + return; name = (char *)get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; } + /* The user has requested a console so this is already set up. */ + add_console = !strstr(cmd_line, "console="); - if (strncmp(name, "vty", 3) == 0) { - if (device_is_compatible(stdout_node, "hvterm1")) { - termno = (u32 *)get_property(stdout_node, "reg", NULL); - if (termno) { - vtermno = termno[0]; - udbg_putc = udbg_putcLP; - udbg_getc = udbg_getcLP; - udbg_getc_poll = udbg_getc_pollLP; - found = 1; - } - } else if (device_is_compatible(stdout_node, "hvterm-protocol")) { - termno = (u32 *)get_property(stdout_node, "reg", NULL); - if (termno) { - vtermno = termno[0]; - udbg_putc = udbg_hvsi_putc; - udbg_getc = udbg_hvsi_getc; - udbg_getc_poll = udbg_hvsi_getc_poll; - found = 1; - } - } - } else if (strncmp(name, "serial", 6)) { - /* XXX fix ISA serial console */ - printk(KERN_WARNING "serial stdout on LPAR ('%s')! " - "can't print udbg messages\n", - stdout_node->full_name); - } else { - printk(KERN_WARNING "don't know how to print to stdout '%s'\n", - stdout_node->full_name); + /* Check if it's a virtual terminal */ + if (strncmp(name, "vty", 3) != 0) + goto out; + termno = (u32 *)get_property(stdout_node, "reg", NULL); + if (termno == NULL) + goto out; + vtermno = termno[0]; + + if (device_is_compatible(stdout_node, "hvterm1")) { + udbg_putc = udbg_putcLP; + udbg_getc = udbg_getcLP; + udbg_getc_poll = udbg_getc_pollLP; + if (add_console) + add_preferred_console("hvc", termno[0] & 0xff, NULL); + } else if (device_is_compatible(stdout_node, "hvterm-protocol")) { + vtermno = termno[0]; + udbg_putc = udbg_hvsi_putc; + udbg_getc = udbg_hvsi_getc; + udbg_getc_poll = udbg_hvsi_getc_poll; + if (add_console) + add_preferred_console("hvsi", termno[0] & 0xff, NULL); } - out: of_node_put(stdout_node); - return found; } void vpa_init(int cpu) |