summaryrefslogtreecommitdiffstats
path: root/arch/ppc64
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/kernel/Makefile7
-rw-r--r--arch/ppc64/kernel/udbg.c125
-rw-r--r--arch/ppc64/kernel/udbg_16550.c123
-rw-r--r--arch/ppc64/kernel/udbg_scc.c135
4 files changed, 0 insertions, 390 deletions
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 58b19f107656..7bf1a6f6f401 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -13,7 +13,6 @@ endif
obj-y += idle.o dma.o \
align.o \
- udbg.o \
rtc.o \
iommu.o vdso.o
obj-y += vdso32/ vdso64/
@@ -27,8 +26,6 @@ ifneq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
endif
-obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
-
obj-$(CONFIG_KEXEC) += machine_kexec.o
obj-$(CONFIG_MODULES) += module.o
ifneq ($(CONFIG_PPC_MERGE),y)
@@ -40,10 +37,6 @@ obj-$(CONFIG_BOOTX_TEXT) += btext.o
endif
obj-$(CONFIG_HVCS) += hvcserver.o
-obj-$(CONFIG_PPC_PMAC) += udbg_scc.o
-
-obj-$(CONFIG_PPC_MAPLE) += udbg_16550.o
-
obj-$(CONFIG_KPROBES) += kprobes.o
ifneq ($(CONFIG_PPC_MERGE),y)
diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c
deleted file mode 100644
index 0d878e72fc44..000000000000
--- a/arch/ppc64/kernel/udbg.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * polling mode stateless debugging stuff, originally for NS16550 Serial Ports
- *
- * c 2001 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/console.h>
-#include <asm/processor.h>
-
-void (*udbg_putc)(unsigned char c);
-unsigned char (*udbg_getc)(void);
-int (*udbg_getc_poll)(void);
-
-/* udbg library, used by xmon et al */
-void udbg_puts(const char *s)
-{
- if (udbg_putc) {
- char c;
-
- if (s && *s != '\0') {
- while ((c = *s++) != '\0')
- udbg_putc(c);
- }
- }
-#if 0
- else {
- printk("%s", s);
- }
-#endif
-}
-
-int udbg_write(const char *s, int n)
-{
- int remain = n;
- char c;
-
- if (!udbg_putc)
- return 0;
-
- if (s && *s != '\0') {
- while (((c = *s++) != '\0') && (remain-- > 0)) {
- udbg_putc(c);
- }
- }
-
- return n - remain;
-}
-
-int udbg_read(char *buf, int buflen)
-{
- char c, *p = buf;
- int i;
-
- if (!udbg_getc)
- return 0;
-
- for (i = 0; i < buflen; ++i) {
- do {
- c = udbg_getc();
- } while (c == 0x11 || c == 0x13);
- if (c == 0)
- break;
- *p++ = c;
- }
-
- return i;
-}
-
-#define UDBG_BUFSIZE 256
-void udbg_printf(const char *fmt, ...)
-{
- unsigned char buf[UDBG_BUFSIZE];
- va_list args;
-
- va_start(args, fmt);
- vsnprintf(buf, UDBG_BUFSIZE, fmt, args);
- udbg_puts(buf);
- va_end(args);
-}
-
-/*
- * Early boot console based on udbg
- */
-static void udbg_console_write(struct console *con, const char *s,
- unsigned int n)
-{
- udbg_write(s, n);
-}
-
-static struct console udbg_console = {
- .name = "udbg",
- .write = udbg_console_write,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-static int early_console_initialized;
-
-void __init disable_early_printk(void)
-{
- if (!early_console_initialized)
- return;
- unregister_console(&udbg_console);
- early_console_initialized = 0;
-}
-
-/* called by setup_system */
-void register_early_udbg_console(void)
-{
- early_console_initialized = 1;
- register_console(&udbg_console);
-}
-
-#if 0 /* if you want to use this as a regular output console */
-console_initcall(register_udbg_console);
-#endif
diff --git a/arch/ppc64/kernel/udbg_16550.c b/arch/ppc64/kernel/udbg_16550.c
deleted file mode 100644
index 9313574ab935..000000000000
--- a/arch/ppc64/kernel/udbg_16550.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * udbg for for NS16550 compatable serial ports
- *
- * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <asm/udbg.h>
-#include <asm/io.h>
-
-extern u8 real_readb(volatile u8 __iomem *addr);
-extern void real_writeb(u8 data, volatile u8 __iomem *addr);
-
-struct NS16550 {
- /* this struct must be packed */
- unsigned char rbr; /* 0 */
- unsigned char ier; /* 1 */
- unsigned char fcr; /* 2 */
- unsigned char lcr; /* 3 */
- unsigned char mcr; /* 4 */
- unsigned char lsr; /* 5 */
- unsigned char msr; /* 6 */
- unsigned char scr; /* 7 */
-};
-
-#define thr rbr
-#define iir fcr
-#define dll rbr
-#define dlm ier
-#define dlab lcr
-
-#define LSR_DR 0x01 /* Data ready */
-#define LSR_OE 0x02 /* Overrun */
-#define LSR_PE 0x04 /* Parity error */
-#define LSR_FE 0x08 /* Framing error */
-#define LSR_BI 0x10 /* Break */
-#define LSR_THRE 0x20 /* Xmit holding register empty */
-#define LSR_TEMT 0x40 /* Xmitter empty */
-#define LSR_ERR 0x80 /* Error */
-
-static volatile struct NS16550 __iomem *udbg_comport;
-
-static void udbg_550_putc(unsigned char c)
-{
- if (udbg_comport) {
- while ((in_8(&udbg_comport->lsr) & LSR_THRE) == 0)
- /* wait for idle */;
- out_8(&udbg_comport->thr, c);
- if (c == '\n')
- udbg_550_putc('\r');
- }
-}
-
-static int udbg_550_getc_poll(void)
-{
- if (udbg_comport) {
- if ((in_8(&udbg_comport->lsr) & LSR_DR) != 0)
- return in_8(&udbg_comport->rbr);
- else
- return -1;
- }
- return -1;
-}
-
-static unsigned char udbg_550_getc(void)
-{
- if (udbg_comport) {
- while ((in_8(&udbg_comport->lsr) & LSR_DR) == 0)
- /* wait for char */;
- return in_8(&udbg_comport->rbr);
- }
- return 0;
-}
-
-void udbg_init_uart(void __iomem *comport, unsigned int speed)
-{
- u16 dll = speed ? (115200 / speed) : 12;
-
- if (comport) {
- udbg_comport = (struct NS16550 __iomem *)comport;
- out_8(&udbg_comport->lcr, 0x00);
- out_8(&udbg_comport->ier, 0xff);
- out_8(&udbg_comport->ier, 0x00);
- out_8(&udbg_comport->lcr, 0x80); /* Access baud rate */
- out_8(&udbg_comport->dll, dll & 0xff); /* 1 = 115200, 2 = 57600,
- 3 = 38400, 12 = 9600 baud */
- out_8(&udbg_comport->dlm, dll >> 8); /* dll >> 8 which should be zero
- for fast rates; */
- out_8(&udbg_comport->lcr, 0x03); /* 8 data, 1 stop, no parity */
- out_8(&udbg_comport->mcr, 0x03); /* RTS/DTR */
- out_8(&udbg_comport->fcr ,0x07); /* Clear & enable FIFOs */
- udbg_putc = udbg_550_putc;
- udbg_getc = udbg_550_getc;
- udbg_getc_poll = udbg_550_getc_poll;
- }
-}
-
-#ifdef CONFIG_PPC_MAPLE
-void udbg_maple_real_putc(unsigned char c)
-{
- if (udbg_comport) {
- while ((real_readb(&udbg_comport->lsr) & LSR_THRE) == 0)
- /* wait for idle */;
- real_writeb(c, &udbg_comport->thr); eieio();
- if (c == '\n')
- udbg_maple_real_putc('\r');
- }
-}
-
-void udbg_init_maple_realmode(void)
-{
- udbg_comport = (volatile struct NS16550 __iomem *)0xf40003f8;
-
- udbg_putc = udbg_maple_real_putc;
- udbg_getc = NULL;
- udbg_getc_poll = NULL;
-}
-#endif /* CONFIG_PPC_MAPLE */
diff --git a/arch/ppc64/kernel/udbg_scc.c b/arch/ppc64/kernel/udbg_scc.c
deleted file mode 100644
index 820c53551507..000000000000
--- a/arch/ppc64/kernel/udbg_scc.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * udbg for for zilog scc ports as found on Apple PowerMacs
- *
- * Copyright (C) 2001-2005 PPC 64 Team, IBM Corp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <linux/types.h>
-#include <asm/udbg.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/pmac_feature.h>
-
-extern u8 real_readb(volatile u8 __iomem *addr);
-extern void real_writeb(u8 data, volatile u8 __iomem *addr);
-
-#define SCC_TXRDY 4
-#define SCC_RXRDY 1
-
-static volatile u8 __iomem *sccc;
-static volatile u8 __iomem *sccd;
-
-static void udbg_scc_putc(unsigned char c)
-{
- if (sccc) {
- while ((in_8(sccc) & SCC_TXRDY) == 0)
- ;
- out_8(sccd, c);
- if (c == '\n')
- udbg_scc_putc('\r');
- }
-}
-
-static int udbg_scc_getc_poll(void)
-{
- if (sccc) {
- if ((in_8(sccc) & SCC_RXRDY) != 0)
- return in_8(sccd);
- else
- return -1;
- }
- return -1;
-}
-
-static unsigned char udbg_scc_getc(void)
-{
- if (sccc) {
- while ((in_8(sccc) & SCC_RXRDY) == 0)
- ;
- return in_8(sccd);
- }
- return 0;
-}
-
-static unsigned char scc_inittab[] = {
- 13, 0, /* set baud rate divisor */
- 12, 0,
- 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 udbg_init_scc(struct device_node *np)
-{
- u32 *reg;
- unsigned long addr;
- int i, x;
-
- if (np == NULL)
- np = of_find_node_by_name(NULL, "escc");
- if (np == NULL || np->parent == NULL)
- return;
-
- udbg_printf("found SCC...\n");
- /* Get address within mac-io ASIC */
- reg = (u32 *)get_property(np, "reg", NULL);
- if (reg == NULL)
- return;
- addr = reg[0];
- udbg_printf("local addr: %lx\n", addr);
- /* Get address of mac-io PCI itself */
- reg = (u32 *)get_property(np->parent, "assigned-addresses", NULL);
- if (reg == NULL)
- return;
- addr += reg[2];
- udbg_printf("final addr: %lx\n", addr);
-
- /* Setup for 57600 8N1 */
- addr += 0x20;
- sccc = (volatile u8 * __iomem) ioremap(addr & PAGE_MASK, PAGE_SIZE) ;
- sccc += addr & ~PAGE_MASK;
- sccd = sccc + 0x10;
-
- udbg_printf("ioremap result sccc: %p\n", sccc);
- mb();
-
- for (i = 20000; i != 0; --i)
- x = in_8(sccc);
- out_8(sccc, 0x09); /* reset A or B side */
- out_8(sccc, 0xc0);
- for (i = 0; i < sizeof(scc_inittab); ++i)
- out_8(sccc, scc_inittab[i]);
-
- udbg_putc = udbg_scc_putc;
- udbg_getc = udbg_scc_getc;
- udbg_getc_poll = udbg_scc_getc_poll;
-
- udbg_puts("Hello World !\n");
-}
-
-static void udbg_real_scc_putc(unsigned char c)
-{
- while ((real_readb(sccc) & SCC_TXRDY) == 0)
- ;
- real_writeb(c, sccd);
- if (c == '\n')
- udbg_real_scc_putc('\r');
-}
-
-void udbg_init_pmac_realmode(void)
-{
- sccc = (volatile u8 __iomem *)0x80013020ul;
- sccd = (volatile u8 __iomem *)0x80013030ul;
-
- udbg_putc = udbg_real_scc_putc;
- udbg_getc = NULL;
- udbg_getc_poll = NULL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 18:09:00 +0000