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authorPaul Mackerras <paulus@samba.org>2006-01-15 17:30:44 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-15 17:30:44 +1100
commita7fdd90bc43e3e9cb08bc1b13650024d419b89e5 (patch)
tree5c99a41b9d157186668ed63c001f72a09965143b /arch/ppc/xmon
parente8625d463560198cff7cb3eb22886c47d728d501 (diff)
downloadlinux-linaro-stable-a7fdd90bc43e3e9cb08bc1b13650024d419b89e5.tar.gz
[PATCH] ppc: Remove powermac support from ARCH=ppc
This makes it possible to build kernels for PReP and/or CHRP with ARCH=ppc by removing the (non-building) powermac support. It's now also possible to select PReP and CHRP independently. Powermac users should now build with ARCH=powerpc instead of ARCH=ppc. (This does mean that it is no longer possible to build a 32-bit kernel for a G5.) Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/xmon')
-rw-r--r--arch/ppc/xmon/start.c161
-rw-r--r--arch/ppc/xmon/xmon.c13
2 files changed, 13 insertions, 161 deletions
diff --git a/arch/ppc/xmon/start.c b/arch/ppc/xmon/start.c
index c80177f8ec04..4344cbe9b5c5 100644
--- a/arch/ppc/xmon/start.c
+++ b/arch/ppc/xmon/start.c
@@ -18,7 +18,6 @@
#include <asm/bootx.h>
#include <asm/machdep.h>
#include <asm/errno.h>
-#include <asm/pmac_feature.h>
#include <asm/processor.h>
#include <asm/delay.h>
#include <asm/btext.h>
@@ -27,11 +26,9 @@ static volatile unsigned char *sccc, *sccd;
unsigned int TXRDY, RXRDY, DLAB;
static int xmon_expect(const char *str, unsigned int timeout);
-static int use_serial;
static int use_screen;
static int via_modem;
static int xmon_use_sccb;
-static struct device_node *channel_node;
#define TB_SPEED 25000000
@@ -112,96 +109,21 @@ xmon_map_scc(void)
#ifdef CONFIG_PPC_MULTIPLATFORM
volatile unsigned char *base;
- if (_machine == _MACH_Pmac) {
- struct device_node *np;
- unsigned long addr;
-#ifdef CONFIG_BOOTX_TEXT
- if (!use_screen && !use_serial
- && !machine_is_compatible("iMac")) {
- /* see if there is a keyboard in the device tree
- with a parent of type "adb" */
- for (np = find_devices("keyboard"); np; np = np->next)
- if (np->parent && np->parent->type
- && strcmp(np->parent->type, "adb") == 0)
- break;
-
- /* needs to be hacked if xmon_printk is to be used
- from within find_via_pmu() */
-#ifdef CONFIG_ADB_PMU
- if (np != NULL && boot_text_mapped && find_via_pmu())
- use_screen = 1;
-#endif
-#ifdef CONFIG_ADB_CUDA
- if (np != NULL && boot_text_mapped && find_via_cuda())
- use_screen = 1;
-#endif
- }
- if (!use_screen && (np = find_devices("escc")) != NULL) {
- /*
- * look for the device node for the serial port
- * we're using and see if it says it has a modem
- */
- char *name = xmon_use_sccb? "ch-b": "ch-a";
- char *slots;
- int l;
-
- np = np->child;
- while (np != NULL && strcmp(np->name, name) != 0)
- np = np->sibling;
- if (np != NULL) {
- /* XXX should parse this properly */
- channel_node = np;
- slots = get_property(np, "slot-names", &l);
- if (slots != NULL && l >= 10
- && strcmp(slots+4, "Modem") == 0)
- via_modem = 1;
- }
- }
- btext_drawstring("xmon uses ");
- if (use_screen)
- btext_drawstring("screen and keyboard\n");
- else {
- if (via_modem)
- btext_drawstring("modem on ");
- btext_drawstring(xmon_use_sccb? "printer": "modem");
- btext_drawstring(" port\n");
- }
-
-#endif /* CONFIG_BOOTX_TEXT */
-
-#ifdef CHRP_ESCC
- addr = 0xc1013020;
-#else
- addr = 0xf3013020;
-#endif
- TXRDY = 4;
- RXRDY = 1;
-
- np = find_devices("mac-io");
- if (np && np->n_addrs)
- addr = np->addrs[0].address + 0x13020;
- base = (volatile unsigned char *) ioremap(addr & PAGE_MASK, PAGE_SIZE);
- sccc = base + (addr & ~PAGE_MASK);
- sccd = sccc + 0x10;
-
- }
#ifdef CONFIG_PPC_CHRP
- else {
- base = (volatile unsigned char *) isa_io_base;
- if (_machine == _MACH_chrp)
- base = (volatile unsigned char *)
- ioremap(chrp_find_phys_io_base(), 0x1000);
-
- sccc = base + 0x3fd;
- sccd = base + 0x3f8;
- if (xmon_use_sccb) {
- sccc -= 0x100;
- sccd -= 0x100;
- }
- TXRDY = 0x20;
- RXRDY = 1;
- DLAB = 0x80;
+ base = (volatile unsigned char *) isa_io_base;
+ if (_machine == _MACH_chrp)
+ base = (volatile unsigned char *)
+ ioremap(chrp_find_phys_io_base(), 0x1000);
+
+ sccc = base + 0x3fd;
+ sccd = base + 0x3f8;
+ if (xmon_use_sccb) {
+ sccc -= 0x100;
+ sccd -= 0x100;
}
+ TXRDY = 0x20;
+ RXRDY = 1;
+ DLAB = 0x80;
#endif /* CONFIG_PPC_CHRP */
#elif defined(CONFIG_GEMINI)
/* should already be mapped by the kernel boot */
@@ -385,16 +307,6 @@ xmon_read_poll(void)
return *sccd;
}
-static unsigned char scc_inittab[] = {
- 13, 0, /* set baud rate divisor */
- 12, 1,
- 14, 1, /* baud rate gen enable, src=rtxc */
- 11, 0x50, /* clocks = br gen */
- 5, 0xea, /* tx 8 bits, assert DTR & RTS */
- 4, 0x46, /* x16 clock, 1 stop */
- 3, 0xc1, /* rx enable, 8 bits */
-};
-
void
xmon_init_scc(void)
{
@@ -407,43 +319,6 @@ xmon_init_scc(void)
sccd[3] = 3; eieio(); /* LCR = 8N1 */
sccd[1] = 0; eieio(); /* IER = 0 */
}
- else if ( _machine == _MACH_Pmac )
- {
- int i, x;
-
- if (channel_node != 0)
- pmac_call_feature(
- PMAC_FTR_SCC_ENABLE,
- channel_node,
- PMAC_SCC_ASYNC | PMAC_SCC_FLAG_XMON, 1);
- printk(KERN_INFO "Serial port locked ON by debugger !\n");
- if (via_modem && channel_node != 0) {
- unsigned int t0;
-
- pmac_call_feature(
- PMAC_FTR_MODEM_ENABLE,
- channel_node, 0, 1);
- printk(KERN_INFO "Modem powered up by debugger !\n");
- t0 = readtb();
- while (readtb() - t0 < 3*TB_SPEED)
- eieio();
- }
- /* use the B channel if requested */
- if (xmon_use_sccb) {
- sccc = (volatile unsigned char *)
- ((unsigned long)sccc & ~0x20);
- sccd = sccc + 0x10;
- }
- for (i = 20000; i != 0; --i) {
- x = *sccc; eieio();
- }
- *sccc = 9; eieio(); /* reset A or B side */
- *sccc = ((unsigned long)sccc & 0x20)? 0x80: 0x40; eieio();
- for (i = 0; i < sizeof(scc_inittab); ++i) {
- *sccc = scc_inittab[i];
- eieio();
- }
- }
scc_initialized = 1;
if (via_modem) {
for (;;) {
@@ -632,19 +507,9 @@ xmon_fgets(char *str, int nb, void *f)
void
xmon_enter(void)
{
-#ifdef CONFIG_ADB_PMU
- if (_machine == _MACH_Pmac) {
- pmu_suspend();
- }
-#endif
}
void
xmon_leave(void)
{
-#ifdef CONFIG_ADB_PMU
- if (_machine == _MACH_Pmac) {
- pmu_resume();
- }
-#endif
}
diff --git a/arch/ppc/xmon/xmon.c b/arch/ppc/xmon/xmon.c
index 9075a7538e26..bdaf6597b4c2 100644
--- a/arch/ppc/xmon/xmon.c
+++ b/arch/ppc/xmon/xmon.c
@@ -16,9 +16,6 @@
#include <asm/bootx.h>
#include <asm/machdep.h>
#include <asm/xmon.h>
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#endif
#include "nonstdio.h"
#include "privinst.h"
@@ -260,16 +257,6 @@ int xmon(struct pt_regs *excp)
*/
#endif /* CONFIG_SMP */
remove_bpts();
-#ifdef CONFIG_PMAC_BACKLIGHT
- if( setjmp(bus_error_jmp) == 0 ) {
- debugger_fault_handler = handle_fault;
- sync();
- set_backlight_enable(1);
- set_backlight_level(BACKLIGHT_MAX);
- sync();
- }
- debugger_fault_handler = NULL;
-#endif /* CONFIG_PMAC_BACKLIGHT */
cmd = cmds(excp);
if (cmd == 's') {
xmon_trace[smp_processor_id()] = SSTEP;