mirror of https://github.com/hak5/openwrt-owl.git
1071 lines
26 KiB
Diff
1071 lines
26 KiB
Diff
CFE is the only supported and used bootloader on the SiByte boards,
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the standalone kernel support has been never used outside Broadcom.
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Remove it and make the kernel use CFE by default.
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Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
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--- a/arch/mips/Makefile
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+++ b/arch/mips/Makefile
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@@ -167,7 +167,6 @@ libs-$(CONFIG_ARC) += arch/mips/fw/arc/
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libs-$(CONFIG_CFE) += arch/mips/fw/cfe/
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libs-$(CONFIG_SNIPROM) += arch/mips/fw/sni/
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libs-y += arch/mips/fw/lib/
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-libs-$(CONFIG_SIBYTE_CFE) += arch/mips/sibyte/cfe/
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#
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# Board-dependent options and extra files
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--- a/arch/mips/sibyte/cfe/console.c
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+++ /dev/null
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@@ -1,79 +0,0 @@
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-#include <linux/init.h>
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-#include <linux/errno.h>
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-#include <linux/console.h>
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-
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-#include <asm/sibyte/board.h>
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-
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-#include <asm/fw/cfe/cfe_api.h>
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-#include <asm/fw/cfe/cfe_error.h>
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-
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-extern int cfe_cons_handle;
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-
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-static void cfe_console_write(struct console *cons, const char *str,
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- unsigned int count)
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-{
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- int i, last, written;
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-
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- for (i=0, last=0; i<count; i++) {
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- if (!str[i])
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- /* XXXKW can/should this ever happen? */
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- return;
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- if (str[i] == '\n') {
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- do {
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- written = cfe_write(cfe_cons_handle, &str[last], i-last);
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- if (written < 0)
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- ;
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- last += written;
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- } while (last < i);
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- while (cfe_write(cfe_cons_handle, "\r", 1) <= 0)
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- ;
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- }
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- }
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- if (last != count) {
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- do {
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- written = cfe_write(cfe_cons_handle, &str[last], count-last);
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- if (written < 0)
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- ;
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- last += written;
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- } while (last < count);
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- }
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-
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-}
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-
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-static int cfe_console_setup(struct console *cons, char *str)
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-{
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- char consdev[32];
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- /* XXXKW think about interaction with 'console=' cmdline arg */
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- /* If none of the console options are configured, the build will break. */
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- if (cfe_getenv("BOOT_CONSOLE", consdev, 32) >= 0) {
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-#ifdef CONFIG_SERIAL_SB1250_DUART
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- if (!strcmp(consdev, "uart0")) {
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- setleds("u0cn");
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- } else if (!strcmp(consdev, "uart1")) {
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- setleds("u1cn");
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-#endif
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-#ifdef CONFIG_VGA_CONSOLE
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- } else if (!strcmp(consdev, "pcconsole0")) {
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- setleds("pccn");
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-#endif
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- } else
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- return -ENODEV;
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- }
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- return 0;
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-}
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-
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-static struct console sb1250_cfe_cons = {
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- .name = "cfe",
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- .write = cfe_console_write,
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- .setup = cfe_console_setup,
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- .flags = CON_PRINTBUFFER,
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- .index = -1,
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-};
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-
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-static int __init sb1250_cfe_console_init(void)
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-{
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- register_console(&sb1250_cfe_cons);
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- return 0;
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-}
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-
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-console_initcall(sb1250_cfe_console_init);
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--- a/arch/mips/sibyte/cfe/Makefile
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+++ /dev/null
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@@ -1,2 +0,0 @@
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-lib-y = setup.o
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-lib-$(CONFIG_SIBYTE_CFE_CONSOLE) += console.o
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--- a/arch/mips/sibyte/cfe/setup.c
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+++ /dev/null
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@@ -1,344 +0,0 @@
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-/*
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- * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version 2
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- * of the License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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- */
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-
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-#include <linux/init.h>
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-#include <linux/kernel.h>
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-#include <linux/linkage.h>
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-#include <linux/mm.h>
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-#include <linux/blkdev.h>
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-#include <linux/bootmem.h>
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-#include <linux/pm.h>
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-#include <linux/smp.h>
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-
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-#include <asm/bootinfo.h>
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-#include <asm/reboot.h>
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-#include <asm/sibyte/board.h>
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-#include <asm/smp-ops.h>
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-
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-#include <asm/fw/cfe/cfe_api.h>
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-#include <asm/fw/cfe/cfe_error.h>
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-
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-/* Max ram addressable in 32-bit segments */
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-#ifdef CONFIG_64BIT
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-#define MAX_RAM_SIZE (~0ULL)
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-#else
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-#ifdef CONFIG_HIGHMEM
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-#ifdef CONFIG_64BIT_PHYS_ADDR
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-#define MAX_RAM_SIZE (~0ULL)
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-#else
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-#define MAX_RAM_SIZE (0xffffffffULL)
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-#endif
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-#else
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-#define MAX_RAM_SIZE (0x1fffffffULL)
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-#endif
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-#endif
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-
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-#define SIBYTE_MAX_MEM_REGIONS 8
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-phys_t board_mem_region_addrs[SIBYTE_MAX_MEM_REGIONS];
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-phys_t board_mem_region_sizes[SIBYTE_MAX_MEM_REGIONS];
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-unsigned int board_mem_region_count;
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-
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-int cfe_cons_handle;
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-
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-#ifdef CONFIG_BLK_DEV_INITRD
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-extern unsigned long initrd_start, initrd_end;
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-#endif
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-
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-static void __noreturn cfe_linux_exit(void *arg)
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-{
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- int warm = *(int *)arg;
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-
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- if (smp_processor_id()) {
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- static int reboot_smp;
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-
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- /* Don't repeat the process from another CPU */
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- if (!reboot_smp) {
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- /* Get CPU 0 to do the cfe_exit */
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- reboot_smp = 1;
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- smp_call_function(cfe_linux_exit, arg, 0);
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- }
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- } else {
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- printk("Passing control back to CFE...\n");
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- cfe_exit(warm, 0);
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- printk("cfe_exit returned??\n");
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- }
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- while (1);
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-}
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-
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-static void __noreturn cfe_linux_restart(char *command)
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-{
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- static const int zero;
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-
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- cfe_linux_exit((void *)&zero);
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-}
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-
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-static void __noreturn cfe_linux_halt(void)
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-{
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- static const int one = 1;
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-
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- cfe_linux_exit((void *)&one);
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-}
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-
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-static __init void prom_meminit(void)
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-{
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- u64 addr, size, type; /* regardless of 64BIT_PHYS_ADDR */
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- int mem_flags = 0;
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- unsigned int idx;
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- int rd_flag;
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-#ifdef CONFIG_BLK_DEV_INITRD
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- unsigned long initrd_pstart;
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- unsigned long initrd_pend;
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-
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- initrd_pstart = CPHYSADDR(initrd_start);
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- initrd_pend = CPHYSADDR(initrd_end);
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- if (initrd_start &&
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- ((initrd_pstart > MAX_RAM_SIZE)
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- || (initrd_pend > MAX_RAM_SIZE))) {
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- panic("initrd out of addressable memory");
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- }
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-
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-#endif /* INITRD */
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-
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- for (idx = 0; cfe_enummem(idx, mem_flags, &addr, &size, &type) != CFE_ERR_NOMORE;
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- idx++) {
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- rd_flag = 0;
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- if (type == CFE_MI_AVAILABLE) {
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- /*
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- * See if this block contains (any portion of) the
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- * ramdisk
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- */
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-#ifdef CONFIG_BLK_DEV_INITRD
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- if (initrd_start) {
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- if ((initrd_pstart > addr) &&
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- (initrd_pstart < (addr + size))) {
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- add_memory_region(addr,
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- initrd_pstart - addr,
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- BOOT_MEM_RAM);
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- rd_flag = 1;
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- }
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- if ((initrd_pend > addr) &&
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- (initrd_pend < (addr + size))) {
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- add_memory_region(initrd_pend,
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- (addr + size) - initrd_pend,
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- BOOT_MEM_RAM);
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- rd_flag = 1;
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- }
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- }
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-#endif
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- if (!rd_flag) {
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- if (addr > MAX_RAM_SIZE)
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- continue;
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- if (addr+size > MAX_RAM_SIZE)
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- size = MAX_RAM_SIZE - (addr+size) + 1;
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- /*
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- * memcpy/__copy_user prefetch, which
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- * will cause a bus error for
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- * KSEG/KUSEG addrs not backed by RAM.
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- * Hence, reserve some padding for the
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- * prefetch distance.
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- */
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- if (size > 512)
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- size -= 512;
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- add_memory_region(addr, size, BOOT_MEM_RAM);
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- }
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- board_mem_region_addrs[board_mem_region_count] = addr;
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- board_mem_region_sizes[board_mem_region_count] = size;
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- board_mem_region_count++;
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- if (board_mem_region_count ==
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- SIBYTE_MAX_MEM_REGIONS) {
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- /*
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- * Too many regions. Need to configure more
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- */
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- while(1);
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- }
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- }
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- }
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-#ifdef CONFIG_BLK_DEV_INITRD
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- if (initrd_start) {
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- add_memory_region(initrd_pstart, initrd_pend - initrd_pstart,
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- BOOT_MEM_RESERVED);
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- }
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-#endif
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-}
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-
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-#ifdef CONFIG_BLK_DEV_INITRD
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-static int __init initrd_setup(char *str)
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-{
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- char rdarg[64];
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- int idx;
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- char *tmp, *endptr;
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- unsigned long initrd_size;
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-
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- /* Make a copy of the initrd argument so we can smash it up here */
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- for (idx = 0; idx < sizeof(rdarg)-1; idx++) {
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- if (!str[idx] || (str[idx] == ' ')) break;
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- rdarg[idx] = str[idx];
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- }
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-
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- rdarg[idx] = 0;
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- str = rdarg;
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-
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- /*
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- *Initrd location comes in the form "<hex size of ramdisk in bytes>@<location in memory>"
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- * e.g. initrd=3abfd@80010000. This is set up by the loader.
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- */
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- for (tmp = str; *tmp != '@'; tmp++) {
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- if (!*tmp) {
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- goto fail;
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- }
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- }
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- *tmp = 0;
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- tmp++;
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- if (!*tmp) {
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- goto fail;
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- }
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- initrd_size = simple_strtoul(str, &endptr, 16);
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- if (*endptr) {
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- *(tmp-1) = '@';
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- goto fail;
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- }
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- *(tmp-1) = '@';
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- initrd_start = simple_strtoul(tmp, &endptr, 16);
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- if (*endptr) {
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- goto fail;
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- }
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- initrd_end = initrd_start + initrd_size;
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- printk("Found initrd of %lx@%lx\n", initrd_size, initrd_start);
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- return 1;
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- fail:
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- printk("Bad initrd argument. Disabling initrd\n");
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- initrd_start = 0;
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- initrd_end = 0;
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- return 1;
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-}
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-
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-#endif
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-
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-extern struct plat_smp_ops sb_smp_ops;
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-extern struct plat_smp_ops bcm1480_smp_ops;
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-
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-/*
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- * prom_init is called just after the cpu type is determined, from setup_arch()
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- */
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-void __init prom_init(void)
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-{
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- uint64_t cfe_ept, cfe_handle;
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- unsigned int cfe_eptseal;
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- int argc = fw_arg0;
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- char **envp = (char **) fw_arg2;
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- int *prom_vec = (int *) fw_arg3;
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-
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- _machine_restart = cfe_linux_restart;
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- _machine_halt = cfe_linux_halt;
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- pm_power_off = cfe_linux_halt;
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-
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- /*
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- * Check if a loader was used; if NOT, the 4 arguments are
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- * what CFE gives us (handle, 0, EPT and EPTSEAL)
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- */
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- if (argc < 0) {
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- cfe_handle = (uint64_t)(long)argc;
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- cfe_ept = (long)envp;
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- cfe_eptseal = (uint32_t)(unsigned long)prom_vec;
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- } else {
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- if ((int32_t)(long)prom_vec < 0) {
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- /*
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- * Old loader; all it gives us is the handle,
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- * so use the "known" entrypoint and assume
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- * the seal.
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- */
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- cfe_handle = (uint64_t)(long)prom_vec;
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- cfe_ept = (uint64_t)((int32_t)0x9fc00500);
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- cfe_eptseal = CFE_EPTSEAL;
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- } else {
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- /*
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- * Newer loaders bundle the handle/ept/eptseal
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- * Note: prom_vec is in the loader's useg
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- * which is still alive in the TLB.
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- */
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- cfe_handle = (uint64_t)((int32_t *)prom_vec)[0];
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- cfe_ept = (uint64_t)((int32_t *)prom_vec)[2];
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- cfe_eptseal = (unsigned int)((uint32_t *)prom_vec)[3];
|
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- }
|
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- }
|
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- if (cfe_eptseal != CFE_EPTSEAL) {
|
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- /* too early for panic to do any good */
|
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- printk("CFE's entrypoint seal doesn't match. Spinning.");
|
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- while (1) ;
|
|
- }
|
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- cfe_init(cfe_handle, cfe_ept);
|
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- /*
|
|
- * Get the handle for (at least) prom_putchar, possibly for
|
|
- * boot console
|
|
- */
|
|
- cfe_cons_handle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE);
|
|
- if (cfe_getenv("LINUX_CMDLINE", arcs_cmdline, CL_SIZE) < 0) {
|
|
- if (argc >= 0) {
|
|
- /* The loader should have set the command line */
|
|
- /* too early for panic to do any good */
|
|
- printk("LINUX_CMDLINE not defined in cfe.");
|
|
- while (1) ;
|
|
- }
|
|
- }
|
|
-
|
|
-#ifdef CONFIG_BLK_DEV_INITRD
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|
- {
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|
- char *ptr;
|
|
- /* Need to find out early whether we've got an initrd. So scan
|
|
- the list looking now */
|
|
- for (ptr = arcs_cmdline; *ptr; ptr++) {
|
|
- while (*ptr == ' ') {
|
|
- ptr++;
|
|
- }
|
|
- if (!strncmp(ptr, "initrd=", 7)) {
|
|
- initrd_setup(ptr+7);
|
|
- break;
|
|
- } else {
|
|
- while (*ptr && (*ptr != ' ')) {
|
|
- ptr++;
|
|
- }
|
|
- }
|
|
- }
|
|
- }
|
|
-#endif /* CONFIG_BLK_DEV_INITRD */
|
|
-
|
|
- /* Not sure this is needed, but it's the safe way. */
|
|
- arcs_cmdline[CL_SIZE-1] = 0;
|
|
-
|
|
- prom_meminit();
|
|
-
|
|
-#if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250)
|
|
- register_smp_ops(&sb_smp_ops);
|
|
-#endif
|
|
-#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
|
|
- register_smp_ops(&bcm1480_smp_ops);
|
|
-#endif
|
|
-}
|
|
-
|
|
-void __init prom_free_prom_memory(void)
|
|
-{
|
|
- /* Not sure what I'm supposed to do here. Nothing, I think */
|
|
-}
|
|
-
|
|
-void prom_putchar(char c)
|
|
-{
|
|
- int ret;
|
|
-
|
|
- while ((ret = cfe_write(cfe_cons_handle, &c, 1)) == 0)
|
|
- ;
|
|
-}
|
|
--- /dev/null
|
|
+++ b/arch/mips/sibyte/common/cfe.c
|
|
@@ -0,0 +1,350 @@
|
|
+/*
|
|
+ * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
|
|
+ *
|
|
+ * 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.
|
|
+ *
|
|
+ * This program is distributed in the hope that it will be useful,
|
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
+ * GNU General Public License for more details.
|
|
+ *
|
|
+ * You should have received a copy of the GNU General Public License
|
|
+ * along with this program; if not, write to the Free Software
|
|
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
+ */
|
|
+
|
|
+#include <linux/init.h>
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/linkage.h>
|
|
+#include <linux/mm.h>
|
|
+#include <linux/blkdev.h>
|
|
+#include <linux/bootmem.h>
|
|
+#include <linux/pm.h>
|
|
+#include <linux/smp.h>
|
|
+
|
|
+#include <asm/bootinfo.h>
|
|
+#include <asm/reboot.h>
|
|
+#include <asm/sibyte/board.h>
|
|
+#include <asm/smp-ops.h>
|
|
+
|
|
+#include <asm/fw/cfe/cfe_api.h>
|
|
+#include <asm/fw/cfe/cfe_error.h>
|
|
+
|
|
+/* Max ram addressable in 32-bit segments */
|
|
+#ifdef CONFIG_64BIT
|
|
+#define MAX_RAM_SIZE (~0ULL)
|
|
+#else
|
|
+#ifdef CONFIG_HIGHMEM
|
|
+#ifdef CONFIG_64BIT_PHYS_ADDR
|
|
+#define MAX_RAM_SIZE (~0ULL)
|
|
+#else
|
|
+#define MAX_RAM_SIZE (0xffffffffULL)
|
|
+#endif
|
|
+#else
|
|
+#define MAX_RAM_SIZE (0x1fffffffULL)
|
|
+#endif
|
|
+#endif
|
|
+
|
|
+#define SIBYTE_MAX_MEM_REGIONS 8
|
|
+phys_t board_mem_region_addrs[SIBYTE_MAX_MEM_REGIONS];
|
|
+phys_t board_mem_region_sizes[SIBYTE_MAX_MEM_REGIONS];
|
|
+unsigned int board_mem_region_count;
|
|
+
|
|
+int cfe_cons_handle;
|
|
+
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+extern unsigned long initrd_start, initrd_end;
|
|
+#endif
|
|
+
|
|
+static void __noreturn cfe_linux_exit(void *arg)
|
|
+{
|
|
+ int warm = *(int *)arg;
|
|
+
|
|
+ if (smp_processor_id()) {
|
|
+ static int reboot_smp;
|
|
+
|
|
+ /* Don't repeat the process from another CPU */
|
|
+ if (!reboot_smp) {
|
|
+ /* Get CPU 0 to do the cfe_exit */
|
|
+ reboot_smp = 1;
|
|
+ smp_call_function(cfe_linux_exit, arg, 0);
|
|
+ }
|
|
+ } else {
|
|
+ printk("Passing control back to CFE...\n");
|
|
+ cfe_exit(warm, 0);
|
|
+ printk("cfe_exit returned??\n");
|
|
+ }
|
|
+ while (1);
|
|
+}
|
|
+
|
|
+static void __noreturn cfe_linux_restart(char *command)
|
|
+{
|
|
+ static const int zero;
|
|
+
|
|
+ cfe_linux_exit((void *)&zero);
|
|
+}
|
|
+
|
|
+static void __noreturn cfe_linux_halt(void)
|
|
+{
|
|
+ static const int one = 1;
|
|
+
|
|
+ cfe_linux_exit((void *)&one);
|
|
+}
|
|
+
|
|
+static __init void prom_meminit(void)
|
|
+{
|
|
+ u64 addr, size, type; /* regardless of 64BIT_PHYS_ADDR */
|
|
+ int mem_flags = 0;
|
|
+ unsigned int idx;
|
|
+ int rd_flag;
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+ unsigned long initrd_pstart;
|
|
+ unsigned long initrd_pend;
|
|
+
|
|
+ initrd_pstart = CPHYSADDR(initrd_start);
|
|
+ initrd_pend = CPHYSADDR(initrd_end);
|
|
+ if (initrd_start &&
|
|
+ ((initrd_pstart > MAX_RAM_SIZE)
|
|
+ || (initrd_pend > MAX_RAM_SIZE))) {
|
|
+ panic("initrd out of addressable memory");
|
|
+ }
|
|
+
|
|
+#endif /* INITRD */
|
|
+
|
|
+ for (idx = 0; cfe_enummem(idx, mem_flags, &addr, &size, &type) != CFE_ERR_NOMORE;
|
|
+ idx++) {
|
|
+ rd_flag = 0;
|
|
+ if (type == CFE_MI_AVAILABLE) {
|
|
+ /*
|
|
+ * See if this block contains (any portion of) the
|
|
+ * ramdisk
|
|
+ */
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+ if (initrd_start) {
|
|
+ if ((initrd_pstart > addr) &&
|
|
+ (initrd_pstart < (addr + size))) {
|
|
+ add_memory_region(addr,
|
|
+ initrd_pstart - addr,
|
|
+ BOOT_MEM_RAM);
|
|
+ rd_flag = 1;
|
|
+ }
|
|
+ if ((initrd_pend > addr) &&
|
|
+ (initrd_pend < (addr + size))) {
|
|
+ add_memory_region(initrd_pend,
|
|
+ (addr + size) - initrd_pend,
|
|
+ BOOT_MEM_RAM);
|
|
+ rd_flag = 1;
|
|
+ }
|
|
+ }
|
|
+#endif
|
|
+ if (!rd_flag) {
|
|
+ if (addr > MAX_RAM_SIZE)
|
|
+ continue;
|
|
+ if (addr+size > MAX_RAM_SIZE)
|
|
+ size = MAX_RAM_SIZE - (addr+size) + 1;
|
|
+ /*
|
|
+ * memcpy/__copy_user prefetch, which
|
|
+ * will cause a bus error for
|
|
+ * KSEG/KUSEG addrs not backed by RAM.
|
|
+ * Hence, reserve some padding for the
|
|
+ * prefetch distance.
|
|
+ */
|
|
+ if (size > 512)
|
|
+ size -= 512;
|
|
+ add_memory_region(addr, size, BOOT_MEM_RAM);
|
|
+ }
|
|
+ board_mem_region_addrs[board_mem_region_count] = addr;
|
|
+ board_mem_region_sizes[board_mem_region_count] = size;
|
|
+ board_mem_region_count++;
|
|
+ if (board_mem_region_count ==
|
|
+ SIBYTE_MAX_MEM_REGIONS) {
|
|
+ /*
|
|
+ * Too many regions. Need to configure more
|
|
+ */
|
|
+ while(1);
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+ if (initrd_start) {
|
|
+ add_memory_region(initrd_pstart, initrd_pend - initrd_pstart,
|
|
+ BOOT_MEM_RESERVED);
|
|
+ }
|
|
+#endif
|
|
+}
|
|
+
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+static int __init initrd_setup(char *str)
|
|
+{
|
|
+ char rdarg[64];
|
|
+ int idx;
|
|
+ char *tmp, *endptr;
|
|
+ unsigned long initrd_size;
|
|
+
|
|
+ /* Make a copy of the initrd argument so we can smash it up here */
|
|
+ for (idx = 0; idx < sizeof(rdarg)-1; idx++) {
|
|
+ if (!str[idx] || (str[idx] == ' ')) break;
|
|
+ rdarg[idx] = str[idx];
|
|
+ }
|
|
+
|
|
+ rdarg[idx] = 0;
|
|
+ str = rdarg;
|
|
+
|
|
+ /*
|
|
+ *Initrd location comes in the form "<hex size of ramdisk in bytes>@<location in memory>"
|
|
+ * e.g. initrd=3abfd@80010000. This is set up by the loader.
|
|
+ */
|
|
+ for (tmp = str; *tmp != '@'; tmp++) {
|
|
+ if (!*tmp) {
|
|
+ goto fail;
|
|
+ }
|
|
+ }
|
|
+ *tmp = 0;
|
|
+ tmp++;
|
|
+ if (!*tmp) {
|
|
+ goto fail;
|
|
+ }
|
|
+ initrd_size = simple_strtoul(str, &endptr, 16);
|
|
+ if (*endptr) {
|
|
+ *(tmp-1) = '@';
|
|
+ goto fail;
|
|
+ }
|
|
+ *(tmp-1) = '@';
|
|
+ initrd_start = simple_strtoul(tmp, &endptr, 16);
|
|
+ if (*endptr) {
|
|
+ goto fail;
|
|
+ }
|
|
+ initrd_end = initrd_start + initrd_size;
|
|
+ printk("Found initrd of %lx@%lx\n", initrd_size, initrd_start);
|
|
+ return 1;
|
|
+ fail:
|
|
+ printk("Bad initrd argument. Disabling initrd\n");
|
|
+ initrd_start = 0;
|
|
+ initrd_end = 0;
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+#endif
|
|
+
|
|
+extern struct plat_smp_ops sb_smp_ops;
|
|
+extern struct plat_smp_ops bcm1480_smp_ops;
|
|
+
|
|
+/*
|
|
+ * prom_init is called just after the cpu type is determined, from setup_arch()
|
|
+ */
|
|
+void __init prom_init(void)
|
|
+{
|
|
+ uint64_t cfe_ept, cfe_handle;
|
|
+ unsigned int cfe_eptseal;
|
|
+ int argc = fw_arg0;
|
|
+ char **envp = (char **) fw_arg2;
|
|
+ int *prom_vec = (int *) fw_arg3;
|
|
+
|
|
+ _machine_restart = cfe_linux_restart;
|
|
+ _machine_halt = cfe_linux_halt;
|
|
+ pm_power_off = cfe_linux_halt;
|
|
+
|
|
+ /*
|
|
+ * Check if a loader was used; if NOT, the 4 arguments are
|
|
+ * what CFE gives us (handle, 0, EPT and EPTSEAL)
|
|
+ */
|
|
+ if (argc < 0) {
|
|
+ cfe_handle = (uint64_t)(long)argc;
|
|
+ cfe_ept = (long)envp;
|
|
+ cfe_eptseal = (uint32_t)(unsigned long)prom_vec;
|
|
+ } else {
|
|
+ if ((int32_t)(long)prom_vec < 0) {
|
|
+ /*
|
|
+ * Old loader; all it gives us is the handle,
|
|
+ * so use the "known" entrypoint and assume
|
|
+ * the seal.
|
|
+ */
|
|
+ cfe_handle = (uint64_t)(long)prom_vec;
|
|
+ cfe_ept = (uint64_t)((int32_t)0x9fc00500);
|
|
+ cfe_eptseal = CFE_EPTSEAL;
|
|
+ } else {
|
|
+ /*
|
|
+ * Newer loaders bundle the handle/ept/eptseal
|
|
+ * Note: prom_vec is in the loader's useg
|
|
+ * which is still alive in the TLB.
|
|
+ */
|
|
+ cfe_handle = (uint64_t)((int32_t *)prom_vec)[0];
|
|
+ cfe_ept = (uint64_t)((int32_t *)prom_vec)[2];
|
|
+ cfe_eptseal = (unsigned int)((uint32_t *)prom_vec)[3];
|
|
+ }
|
|
+ }
|
|
+ if (cfe_eptseal != CFE_EPTSEAL) {
|
|
+ /* too early for panic to do any good */
|
|
+ printk("CFE's entrypoint seal doesn't match. Spinning.");
|
|
+ while (1) ;
|
|
+ }
|
|
+ cfe_init(cfe_handle, cfe_ept);
|
|
+ /*
|
|
+ * Get the handle for (at least) prom_putchar, possibly for
|
|
+ * boot console
|
|
+ */
|
|
+ cfe_cons_handle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE);
|
|
+ if (cfe_getenv("LINUX_CMDLINE", arcs_cmdline, CL_SIZE) < 0) {
|
|
+ if (argc < 0) {
|
|
+ /*
|
|
+ * It's OK for direct boot to not provide a
|
|
+ * command line
|
|
+ */
|
|
+ strcpy(arcs_cmdline, "root=/dev/ram0 ");
|
|
+ } else {
|
|
+ /* The loader should have set the command line */
|
|
+ /* too early for panic to do any good */
|
|
+ printk("LINUX_CMDLINE not defined in cfe.");
|
|
+ while (1) ;
|
|
+ }
|
|
+ }
|
|
+
|
|
+#ifdef CONFIG_BLK_DEV_INITRD
|
|
+ {
|
|
+ char *ptr;
|
|
+ /* Need to find out early whether we've got an initrd. So scan
|
|
+ the list looking now */
|
|
+ for (ptr = arcs_cmdline; *ptr; ptr++) {
|
|
+ while (*ptr == ' ') {
|
|
+ ptr++;
|
|
+ }
|
|
+ if (!strncmp(ptr, "initrd=", 7)) {
|
|
+ initrd_setup(ptr+7);
|
|
+ break;
|
|
+ } else {
|
|
+ while (*ptr && (*ptr != ' ')) {
|
|
+ ptr++;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+#endif /* CONFIG_BLK_DEV_INITRD */
|
|
+
|
|
+ /* Not sure this is needed, but it's the safe way. */
|
|
+ arcs_cmdline[CL_SIZE-1] = 0;
|
|
+
|
|
+ prom_meminit();
|
|
+
|
|
+#if defined(CONFIG_SIBYTE_BCM112X) || defined(CONFIG_SIBYTE_SB1250)
|
|
+ register_smp_ops(&sb_smp_ops);
|
|
+#endif
|
|
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
|
|
+ register_smp_ops(&bcm1480_smp_ops);
|
|
+#endif
|
|
+}
|
|
+
|
|
+void __init prom_free_prom_memory(void)
|
|
+{
|
|
+ /* Not sure what I'm supposed to do here. Nothing, I think */
|
|
+}
|
|
+
|
|
+void prom_putchar(char c)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ while ((ret = cfe_write(cfe_cons_handle, &c, 1)) == 0)
|
|
+ ;
|
|
+}
|
|
--- /dev/null
|
|
+++ b/arch/mips/sibyte/common/cfe_console.c
|
|
@@ -0,0 +1,79 @@
|
|
+#include <linux/init.h>
|
|
+#include <linux/errno.h>
|
|
+#include <linux/console.h>
|
|
+
|
|
+#include <asm/sibyte/board.h>
|
|
+
|
|
+#include <asm/fw/cfe/cfe_api.h>
|
|
+#include <asm/fw/cfe/cfe_error.h>
|
|
+
|
|
+extern int cfe_cons_handle;
|
|
+
|
|
+static void cfe_console_write(struct console *cons, const char *str,
|
|
+ unsigned int count)
|
|
+{
|
|
+ int i, last, written;
|
|
+
|
|
+ for (i=0, last=0; i<count; i++) {
|
|
+ if (!str[i])
|
|
+ /* XXXKW can/should this ever happen? */
|
|
+ return;
|
|
+ if (str[i] == '\n') {
|
|
+ do {
|
|
+ written = cfe_write(cfe_cons_handle, &str[last], i-last);
|
|
+ if (written < 0)
|
|
+ ;
|
|
+ last += written;
|
|
+ } while (last < i);
|
|
+ while (cfe_write(cfe_cons_handle, "\r", 1) <= 0)
|
|
+ ;
|
|
+ }
|
|
+ }
|
|
+ if (last != count) {
|
|
+ do {
|
|
+ written = cfe_write(cfe_cons_handle, &str[last], count-last);
|
|
+ if (written < 0)
|
|
+ ;
|
|
+ last += written;
|
|
+ } while (last < count);
|
|
+ }
|
|
+
|
|
+}
|
|
+
|
|
+static int cfe_console_setup(struct console *cons, char *str)
|
|
+{
|
|
+ char consdev[32];
|
|
+ /* XXXKW think about interaction with 'console=' cmdline arg */
|
|
+ /* If none of the console options are configured, the build will break. */
|
|
+ if (cfe_getenv("BOOT_CONSOLE", consdev, 32) >= 0) {
|
|
+#ifdef CONFIG_SERIAL_SB1250_DUART
|
|
+ if (!strcmp(consdev, "uart0")) {
|
|
+ setleds("u0cn");
|
|
+ } else if (!strcmp(consdev, "uart1")) {
|
|
+ setleds("u1cn");
|
|
+#endif
|
|
+#ifdef CONFIG_VGA_CONSOLE
|
|
+ } else if (!strcmp(consdev, "pcconsole0")) {
|
|
+ setleds("pccn");
|
|
+#endif
|
|
+ } else
|
|
+ return -ENODEV;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static struct console sb1250_cfe_cons = {
|
|
+ .name = "cfe",
|
|
+ .write = cfe_console_write,
|
|
+ .setup = cfe_console_setup,
|
|
+ .flags = CON_PRINTBUFFER,
|
|
+ .index = -1,
|
|
+};
|
|
+
|
|
+static int __init sb1250_cfe_console_init(void)
|
|
+{
|
|
+ register_console(&sb1250_cfe_cons);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+console_initcall(sb1250_cfe_console_init);
|
|
--- a/arch/mips/sibyte/common/Makefile
|
|
+++ b/arch/mips/sibyte/common/Makefile
|
|
@@ -1,5 +1,5 @@
|
|
-obj-y :=
|
|
-
|
|
+obj-y := cfe.o
|
|
+obj-$(CONFIG_SIBYTE_CFE_CONSOLE) += cfe_console.o
|
|
obj-$(CONFIG_SIBYTE_TBPROF) += sb_tbprof.o
|
|
|
|
EXTRA_CFLAGS += -Werror
|
|
--- a/arch/mips/sibyte/Kconfig
|
|
+++ b/arch/mips/sibyte/Kconfig
|
|
@@ -75,6 +75,8 @@ config SIBYTE_SB1xxx_SOC
|
|
select SWAP_IO_SPACE
|
|
select SYS_SUPPORTS_32BIT_KERNEL
|
|
select SYS_SUPPORTS_64BIT_KERNEL
|
|
+ select CFE
|
|
+ select SYS_HAS_EARLY_PRINTK
|
|
|
|
choice
|
|
prompt "SiByte SOC Stepping"
|
|
@@ -136,34 +138,14 @@ config SB1_CERR_STALL
|
|
bool "Stall (rather than panic) on fatal cache error"
|
|
depends on SIBYTE_SB1xxx_SOC
|
|
|
|
-config SIBYTE_CFE
|
|
- bool "Booting from CFE"
|
|
- depends on SIBYTE_SB1xxx_SOC
|
|
- select CFE
|
|
- select SYS_HAS_EARLY_PRINTK
|
|
- help
|
|
- Make use of the CFE API for enumerating available memory,
|
|
- controlling secondary CPUs, and possibly console output.
|
|
-
|
|
config SIBYTE_CFE_CONSOLE
|
|
bool "Use firmware console"
|
|
- depends on SIBYTE_CFE
|
|
+ depends on SIBYTE_SB1xxx_SOC
|
|
help
|
|
Use the CFE API's console write routines during boot. Other console
|
|
options (VT console, sb1250 duart console, etc.) should not be
|
|
configured.
|
|
|
|
-config SIBYTE_STANDALONE
|
|
- bool
|
|
- depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
|
|
- select SYS_HAS_EARLY_PRINTK
|
|
- default y
|
|
-
|
|
-config SIBYTE_STANDALONE_RAM_SIZE
|
|
- int "Memory size (in megabytes)"
|
|
- depends on SIBYTE_STANDALONE
|
|
- default "32"
|
|
-
|
|
config SIBYTE_BUS_WATCHER
|
|
bool "Support for Bus Watcher statistics"
|
|
depends on SIBYTE_SB1xxx_SOC
|
|
--- a/arch/mips/sibyte/sb1250/Makefile
|
|
+++ b/arch/mips/sibyte/sb1250/Makefile
|
|
@@ -1,7 +1,6 @@
|
|
obj-y := setup.o irq.o time.o
|
|
|
|
obj-$(CONFIG_SMP) += smp.o
|
|
-obj-$(CONFIG_SIBYTE_STANDALONE) += prom.o
|
|
obj-$(CONFIG_SIBYTE_BUS_WATCHER) += bus_watcher.o
|
|
|
|
EXTRA_CFLAGS += -Werror
|
|
--- a/arch/mips/sibyte/sb1250/prom.c
|
|
+++ /dev/null
|
|
@@ -1,96 +0,0 @@
|
|
-/*
|
|
- * Copyright (C) 2000, 2001 Broadcom Corporation
|
|
- *
|
|
- * 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.
|
|
- *
|
|
- * This program is distributed in the hope that it will be useful,
|
|
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
- * GNU General Public License for more details.
|
|
- *
|
|
- * You should have received a copy of the GNU General Public License
|
|
- * along with this program; if not, write to the Free Software
|
|
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
- */
|
|
-
|
|
-#include <linux/init.h>
|
|
-#include <linux/kernel.h>
|
|
-#include <linux/mm.h>
|
|
-#include <linux/blkdev.h>
|
|
-#include <linux/bootmem.h>
|
|
-#include <linux/smp.h>
|
|
-#include <linux/initrd.h>
|
|
-#include <linux/pm.h>
|
|
-
|
|
-#include <asm/bootinfo.h>
|
|
-#include <asm/reboot.h>
|
|
-
|
|
-#define MAX_RAM_SIZE ((CONFIG_SIBYTE_STANDALONE_RAM_SIZE * 1024 * 1024) - 1)
|
|
-
|
|
-static __init void prom_meminit(void)
|
|
-{
|
|
-#ifdef CONFIG_BLK_DEV_INITRD
|
|
- unsigned long initrd_pstart;
|
|
- unsigned long initrd_pend;
|
|
-
|
|
- initrd_pstart = __pa(initrd_start);
|
|
- initrd_pend = __pa(initrd_end);
|
|
- if (initrd_start &&
|
|
- ((initrd_pstart > MAX_RAM_SIZE)
|
|
- || (initrd_pend > MAX_RAM_SIZE))) {
|
|
- panic("initrd out of addressable memory");
|
|
- }
|
|
-
|
|
- add_memory_region(0, initrd_pstart,
|
|
- BOOT_MEM_RAM);
|
|
- add_memory_region(initrd_pstart, initrd_pend - initrd_pstart,
|
|
- BOOT_MEM_RESERVED);
|
|
- add_memory_region(initrd_pend,
|
|
- (CONFIG_SIBYTE_STANDALONE_RAM_SIZE * 1024 * 1024) - initrd_pend,
|
|
- BOOT_MEM_RAM);
|
|
-#else
|
|
- add_memory_region(0, CONFIG_SIBYTE_STANDALONE_RAM_SIZE * 1024 * 1024,
|
|
- BOOT_MEM_RAM);
|
|
-#endif
|
|
-}
|
|
-
|
|
-void prom_cpu0_exit(void *unused)
|
|
-{
|
|
- while (1) ;
|
|
-}
|
|
-
|
|
-static void prom_linux_exit(void)
|
|
-{
|
|
-#ifdef CONFIG_SMP
|
|
- if (smp_processor_id()) {
|
|
- smp_call_function(prom_cpu0_exit, NULL, 1);
|
|
- }
|
|
-#endif
|
|
- while(1);
|
|
-}
|
|
-
|
|
-/*
|
|
- * prom_init is called just after the cpu type is determined, from setup_arch()
|
|
- */
|
|
-void __init prom_init(void)
|
|
-{
|
|
- _machine_restart = (void (*)(char *))prom_linux_exit;
|
|
- _machine_halt = prom_linux_exit;
|
|
- pm_power_off = prom_linux_exit;
|
|
-
|
|
- strcpy(arcs_cmdline, "root=/dev/ram0 ");
|
|
-
|
|
- prom_meminit();
|
|
-}
|
|
-
|
|
-void __init prom_free_prom_memory(void)
|
|
-{
|
|
- /* Not sure what I'm supposed to do here. Nothing, I think */
|
|
-}
|
|
-
|
|
-void prom_putchar(char c)
|
|
-{
|
|
-}
|
|
--- a/arch/mips/sibyte/swarm/setup.c
|
|
+++ b/arch/mips/sibyte/swarm/setup.c
|
|
@@ -136,16 +136,6 @@ void __init plat_mem_setup(void)
|
|
if (m41t81_probe())
|
|
swarm_rtc_type = RTC_M4LT81;
|
|
|
|
- printk("This kernel optimized for "
|
|
- "board"
|
|
- " runs "
|
|
-#ifdef CONFIG_SIBYTE_CFE
|
|
- "with"
|
|
-#else
|
|
- "without"
|
|
-#endif
|
|
- " CFE\n");
|
|
-
|
|
#ifdef CONFIG_VT
|
|
screen_info = (struct screen_info) {
|
|
0, 0, /* orig-x, orig-y */
|