Commit 13b8a272 authored by Paul Mackerras's avatar Paul Mackerras
Browse files

powerpc: Introduce a new config symbol to control 16550 early debug code



The previous change by Kumar Gala in this area led to legacy_serial.c
and udbg_16550.c being built as modules when CONFIG_SERIAL_8250=m.
Fix this by introducing a new symbol, CONFIG_PPC_UDBG_16550, to
control whether these files get built, and arrange for it to be selected
for those platforms that need it.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 0f17574a
......@@ -275,6 +275,7 @@ config PPC_PSERIES
select PPC_I8259
select PPC_RTAS
select RTAS_ERROR_LOGGING
select PPC_UDBG_16550
default y
config PPC_CHRP
......@@ -284,6 +285,7 @@ config PPC_CHRP
select PPC_INDIRECT_PCI
select PPC_RTAS
select PPC_MPC106
select PPC_UDBG_16550
default y
config PPC_PMAC
......@@ -306,6 +308,7 @@ config PPC_PREP
depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
select PPC_I8259
select PPC_INDIRECT_PCI
select PPC_UDBG_16550
default y
config PPC_MAPLE
......@@ -314,6 +317,7 @@ config PPC_MAPLE
select U3_DART
select MPIC_BROKEN_U3
select GENERIC_TBSYNC
select PPC_UDBG_16550
default n
help
This option enables support for the Maple 970FX Evaluation Board.
......@@ -324,6 +328,7 @@ config PPC_CELL
depends on PPC_MULTIPLATFORM && PPC64
select PPC_RTAS
select MMIO_NVRAM
select PPC_UDBG_16550
config PPC_OF
def_bool y
......@@ -370,6 +375,10 @@ config MPIC_BROKEN_U3
depends on PPC_MAPLE
default y
config PPC_UDBG_16550
bool
default n
config CELL_IIC
depends on PPC_CELL
bool
......
......@@ -55,7 +55,7 @@ obj-$(CONFIG_BOOTX_TEXT) += btext.o
obj-$(CONFIG_6xx) += idle_6xx.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_SERIAL_8250) += legacy_serial.o udbg_16550.o
obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o
module-$(CONFIG_PPC64) += module_64.o
obj-$(CONFIG_MODULES) += $(module-y)
......
......@@ -299,9 +299,7 @@ void __init setup_arch(char **cmdline_p)
if (ppc_md.init_early)
ppc_md.init_early();
#ifdef CONFIG_SERIAL_8250
find_legacy_serial_ports();
#endif
finish_device_tree();
smp_setup_cpu_maps();
......
......@@ -472,9 +472,7 @@ void __init setup_system(void)
* hash table management for us, thus ioremap works. We do that early
* so that further code can be debugged
*/
#ifdef CONFIG_SERIAL_8250
find_legacy_serial_ports();
#endif
/*
* "Finish" the device-tree, that is do the actual parsing of
......
......@@ -71,9 +71,6 @@
#define DBG(fmt...)
#endif
extern void generic_find_legacy_serial_ports(u64 *physport,
unsigned int *default_speed);
static void maple_restart(char *cmd)
{
unsigned int maple_nvram_base;
......
......@@ -15,6 +15,10 @@
/* Default baud base if not found in device-tree */
#define BASE_BAUD ( 1843200 / 16 )
#ifdef CONFIG_PPC_UDBG_16550
extern void find_legacy_serial_ports(void);
#else
#define find_legacy_serial_ports() do { } while (0)
#endif
#endif /* _PPC64_SERIAL_H */
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