patch-2.3.30 linux/arch/ppc/kernel/pmac_support.c

• Lines: 108
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.29/linux/arch/ppc/kernel/pmac_support.c
• Orig date: Thu Nov 18 20:25:37 1999

diff -u --recursive --new-file v2.3.29/linux/arch/ppc/kernel/pmac_support.c linux/arch/ppc/kernel/pmac_support.c
@@ -1,107 +0,0 @@
-/*
- * Miscellaneous procedures for dealing with the PowerMac hardware.
- */
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/reboot.h>
-#include <linux/nvram.h>
-#include <linux/init.h>
-#include <asm/init.h>
-#include <asm/ptrace.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/prom.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-
-/*
- * Read and write the non-volatile RAM on PowerMacs and CHRP machines.
- */
-static int nvram_naddrs;
-static volatile unsigned char *nvram_addr;
-static volatile unsigned char *nvram_data;
-static int nvram_mult;
-
-#define NVRAM_SIZE	0x2000	/* 8kB of non-volatile RAM */
-
-
-__init
-void pmac_nvram_init(void)
-{
-	struct device_node *dp;
-
-	dp = find_devices("nvram");
-	if (dp == NULL) {
-		printk(KERN_ERR "Can't find NVRAM device\n");
-		nvram_naddrs = 0;
-		return;
-	}
-	nvram_naddrs = dp->n_addrs;
-	if (_machine == _MACH_chrp && nvram_naddrs == 1) {
-		nvram_data = ioremap(dp->addrs[0].address, dp->addrs[0].size);
-		nvram_mult = 1;
-	} else if (nvram_naddrs == 1) {
-		nvram_data = ioremap(dp->addrs[0].address, dp->addrs[0].size);
-		nvram_mult = (dp->addrs[0].size + NVRAM_SIZE - 1) / NVRAM_SIZE;
-	} else if (nvram_naddrs == 2) {
-		nvram_addr = ioremap(dp->addrs[0].address, dp->addrs[0].size);
-		nvram_data = ioremap(dp->addrs[1].address, dp->addrs[1].size);
-	} else if (nvram_naddrs == 0 && sys_ctrler == SYS_CTRLER_PMU) {
-		nvram_naddrs = -1;
-	} else {
-		printk(KERN_ERR "Don't know how to access NVRAM with %d addresses\n",
-		       nvram_naddrs);
-	}
-}
-
-unsigned char nvram_read_byte(int addr)
-{
-	struct adb_request req;
-
-	switch (nvram_naddrs) {
-#ifdef CONFIG_ADB_PMU
-	case -1:
-		if (pmu_request(&req, NULL, 3, PMU_READ_NVRAM,
-				(addr >> 8) & 0xff, addr & 0xff))
-			break;
-		while (!req.complete)
-			pmu_poll();
-		return req.reply[1];
-#endif
-	case 1:
-		return nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult];
-	case 2:
-		*nvram_addr = addr >> 5;
-		eieio();
-		return nvram_data[(addr & 0x1f) << 4];
-	}
-	return 0;
-}
-
-void nvram_write_byte(unsigned char val, int addr)
-{
-	struct adb_request req;
-
-	switch (nvram_naddrs) {
-#ifdef CONFIG_ADB_PMU
-	case -1:
-		if (pmu_request(&req, NULL, 4, PMU_WRITE_NVRAM,
-				(addr >> 8) & 0xff, addr & 0xff, val))
-			break;
-		while (!req.complete)
-			pmu_poll();
-		break;
-#endif
-	case 1:
-		nvram_data[(addr & (NVRAM_SIZE - 1)) * nvram_mult] = val;
-		break;
-	case 2:
-		*nvram_addr = addr >> 5;
-		eieio();
-		nvram_data[(addr & 0x1f) << 4] = val;
-		break;
-	}
-	eieio();
-}