[MIPS] TXx9: Add 64-bit support
SYS_SUPPORTS_64BIT_KERNEL is enabled for RBTX4927/RBTX4938, but
actually it was broken for long time (or from the beginning). Now it
should work.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index 1657fd9..3da20ea 100644
--- a/arch/mips/txx9/rbtx4927/setup.c
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -53,17 +53,10 @@
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/txx9tmr.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4927.h>
#include <asm/txx9/tx4938.h> /* for TX4937 */
-#ifdef CONFIG_SERIAL_TXX9
-#include <linux/serial_core.h>
-#endif
-
-static int tx4927_ccfg_toeon = 1;
#ifdef CONFIG_PCI
static void __init tx4927_pci_setup(void)
@@ -184,14 +177,14 @@
printk(KERN_NOTICE "System Rebooting...\n");
/* enable the s/w reset register */
- writeb(RBTX4927_SW_RESET_ENABLE_SET, RBTX4927_SW_RESET_ENABLE);
+ writeb(1, rbtx4927_softresetlock_addr);
/* wait for enable to be seen */
- while ((readb(RBTX4927_SW_RESET_ENABLE) &
- RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
+ while (!(readb(rbtx4927_softresetlock_addr) & 1))
+ ;
/* do a s/w reset */
- writeb(RBTX4927_SW_RESET_DO_SET, RBTX4927_SW_RESET_DO);
+ writeb(1, rbtx4927_softreset_addr);
/* do something passive while waiting for reset */
local_irq_disable();
@@ -213,9 +206,11 @@
/* no return */
}
+static void __init rbtx4927_clock_init(void);
+static void __init rbtx4937_clock_init(void);
+
static void __init rbtx4927_mem_setup(void)
{
- int i;
u32 cp0_config;
char *argptr;
@@ -227,16 +222,18 @@
cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
write_c0_config(cp0_config);
- ioport_resource.end = 0xffffffff;
- iomem_resource.end = 0xffffffff;
+ if (TX4927_REV_PCODE() == 0x4927) {
+ rbtx4927_clock_init();
+ tx4927_setup();
+ } else {
+ rbtx4937_clock_init();
+ tx4938_setup();
+ }
_machine_restart = toshiba_rbtx4927_restart;
_machine_halt = toshiba_rbtx4927_halt;
pm_power_off = toshiba_rbtx4927_power_off;
- for (i = 0; i < TX4927_NR_TMR; i++)
- txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
-
#ifdef CONFIG_PCI
txx9_alloc_pci_controller(&txx9_primary_pcic,
RBTX4927_PCIMEM, RBTX4927_PCIMEM_SIZE,
@@ -245,36 +242,13 @@
set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET);
#endif
- /* CCFG */
- /* do reset on watchdog */
- tx4927_ccfg_set(TX4927_CCFG_WR);
- /* enable Timeout BusError */
- if (tx4927_ccfg_toeon)
- tx4927_ccfg_set(TX4927_CCFG_TOE);
-
-#ifdef CONFIG_SERIAL_TXX9
- {
- extern int early_serial_txx9_setup(struct uart_port *port);
- struct uart_port req;
- for(i = 0; i < 2; i++) {
- memset(&req, 0, sizeof(req));
- req.line = i;
- req.iotype = UPIO_MEM;
- req.membase = (char *)(0xff1ff300 + i * 0x100);
- req.mapbase = 0xff1ff300 + i * 0x100;
- req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i);
- req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
- req.uartclk = 50000000;
- early_serial_txx9_setup(&req);
- }
- }
+ tx4927_setup_serial();
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
argptr = prom_getcmdline();
if (strstr(argptr, "console=") == NULL) {
strcat(argptr, " console=ttyS0,38400");
}
#endif
-#endif
#ifdef CONFIG_ROOT_NFS
argptr = prom_getcmdline();
@@ -291,19 +265,7 @@
#endif
}
-static void __init rbtx49x7_common_time_init(void)
-{
- /* change default value to udelay/mdelay take reasonable time */
- loops_per_jiffy = txx9_cpu_clock / HZ / 2;
-
- mips_hpt_frequency = txx9_cpu_clock / 2;
- if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
- txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
- TXX9_IRQ_BASE + 17,
- 50000000);
-}
-
-static void __init rbtx4927_time_init(void)
+static void __init rbtx4927_clock_init(void)
{
/*
* ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
@@ -325,11 +287,9 @@
default:
txx9_cpu_clock = 200000000; /* 200MHz */
}
-
- rbtx49x7_common_time_init();
}
-static void __init rbtx4937_time_init(void)
+static void __init rbtx4937_clock_init(void)
{
/*
* ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
@@ -357,15 +317,18 @@
default:
txx9_cpu_clock = 333333333; /* 333MHz */
}
+}
- rbtx49x7_common_time_init();
+static void __init rbtx4927_time_init(void)
+{
+ tx4927_time_init(0);
}
static int __init toshiba_rbtx4927_rtc_init(void)
{
- static struct resource __initdata res = {
- .start = 0x1c010000,
- .end = 0x1c010000 + 0x800 - 1,
+ struct resource res = {
+ .start = RBTX4927_BRAMRTC_BASE - IO_BASE,
+ .end = RBTX4927_BRAMRTC_BASE - IO_BASE + 0x800 - 1,
.flags = IORESOURCE_MEM,
};
struct platform_device *dev =
@@ -375,7 +338,7 @@
static int __init rbtx4927_ne_init(void)
{
- static struct resource __initdata res[] = {
+ struct resource res[] = {
{
.start = RBTX4927_RTL_8019_BASE,
.end = RBTX4927_RTL_8019_BASE + 0x20 - 1,
@@ -434,7 +397,7 @@
.prom_init = rbtx4927_prom_init,
.mem_setup = rbtx4927_mem_setup,
.irq_setup = rbtx4927_irq_setup,
- .time_init = rbtx4937_time_init,
+ .time_init = rbtx4927_time_init,
.device_init = rbtx4927_device_init,
.arch_init = rbtx4937_arch_init,
#ifdef CONFIG_PCI