[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/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index c1e076c..6c2b99b 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -20,21 +20,14 @@
#include <linux/gpio.h>
#include <asm/reboot.h>
-#include <asm/time.h>
-#include <asm/txx9tmr.h>
#include <asm/io.h>
#include <asm/txx9/generic.h>
#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4938.h>
-#ifdef CONFIG_SERIAL_TXX9
-#include <linux/serial_core.h>
-#endif
#include <linux/spi/spi.h>
#include <asm/txx9/spi.h>
#include <asm/txx9pio.h>
-static int tx4938_ccfg_toeon = 1;
-
static void rbtx4938_machine_halt(void)
{
printk(KERN_NOTICE "System Halted\n");
@@ -182,189 +175,10 @@
}
static struct resource rbtx4938_fpga_resource;
-static struct resource tx4938_sdram_resource[4];
-static struct resource tx4938_sram_resource;
-
-void __init tx4938_board_setup(void)
-{
- int i;
- unsigned long divmode;
- int cpuclk = 0;
- unsigned long pcode = TX4938_REV_PCODE();
-
- ioport_resource.start = 0;
- ioport_resource.end = 0xffffffff;
- iomem_resource.start = 0;
- iomem_resource.end = 0xffffffff; /* expand to 4GB */
-
- txx9_reg_res_init(pcode, TX4938_REG_BASE,
- TX4938_REG_SIZE);
- /* SDRAMC,EBUSC are configured by PROM */
- for (i = 0; i < 8; i++) {
- if (!(TX4938_EBUSC_CR(i) & 0x8))
- continue; /* disabled */
- txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
- txx9_ce_res[i].end =
- txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
- request_resource(&iomem_resource, &txx9_ce_res[i]);
- }
-
- /* clocks */
- if (txx9_master_clock) {
- u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
- /* calculate gbus_clock and cpu_clock_freq from master_clock */
- divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
- switch (divmode) {
- case TX4938_CCFG_DIVMODE_8:
- case TX4938_CCFG_DIVMODE_10:
- case TX4938_CCFG_DIVMODE_12:
- case TX4938_CCFG_DIVMODE_16:
- case TX4938_CCFG_DIVMODE_18:
- txx9_gbus_clock = txx9_master_clock * 4; break;
- default:
- txx9_gbus_clock = txx9_master_clock;
- }
- switch (divmode) {
- case TX4938_CCFG_DIVMODE_2:
- case TX4938_CCFG_DIVMODE_8:
- cpuclk = txx9_gbus_clock * 2; break;
- case TX4938_CCFG_DIVMODE_2_5:
- case TX4938_CCFG_DIVMODE_10:
- cpuclk = txx9_gbus_clock * 5 / 2; break;
- case TX4938_CCFG_DIVMODE_3:
- case TX4938_CCFG_DIVMODE_12:
- cpuclk = txx9_gbus_clock * 3; break;
- case TX4938_CCFG_DIVMODE_4:
- case TX4938_CCFG_DIVMODE_16:
- cpuclk = txx9_gbus_clock * 4; break;
- case TX4938_CCFG_DIVMODE_4_5:
- case TX4938_CCFG_DIVMODE_18:
- cpuclk = txx9_gbus_clock * 9 / 2; break;
- }
- txx9_cpu_clock = cpuclk;
- } else {
- u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
- if (txx9_cpu_clock == 0) {
- txx9_cpu_clock = 300000000; /* 300MHz */
- }
- /* calculate gbus_clock and master_clock from cpu_clock_freq */
- cpuclk = txx9_cpu_clock;
- divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
- switch (divmode) {
- case TX4938_CCFG_DIVMODE_2:
- case TX4938_CCFG_DIVMODE_8:
- txx9_gbus_clock = cpuclk / 2; break;
- case TX4938_CCFG_DIVMODE_2_5:
- case TX4938_CCFG_DIVMODE_10:
- txx9_gbus_clock = cpuclk * 2 / 5; break;
- case TX4938_CCFG_DIVMODE_3:
- case TX4938_CCFG_DIVMODE_12:
- txx9_gbus_clock = cpuclk / 3; break;
- case TX4938_CCFG_DIVMODE_4:
- case TX4938_CCFG_DIVMODE_16:
- txx9_gbus_clock = cpuclk / 4; break;
- case TX4938_CCFG_DIVMODE_4_5:
- case TX4938_CCFG_DIVMODE_18:
- txx9_gbus_clock = cpuclk * 2 / 9; break;
- }
- switch (divmode) {
- case TX4938_CCFG_DIVMODE_8:
- case TX4938_CCFG_DIVMODE_10:
- case TX4938_CCFG_DIVMODE_12:
- case TX4938_CCFG_DIVMODE_16:
- case TX4938_CCFG_DIVMODE_18:
- txx9_master_clock = txx9_gbus_clock / 4; break;
- default:
- txx9_master_clock = txx9_gbus_clock;
- }
- }
- /* change default value to udelay/mdelay take reasonable time */
- loops_per_jiffy = txx9_cpu_clock / HZ / 2;
-
- /* CCFG */
- /* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
- tx4938_ccfg_set(TX4938_CCFG_WDRST | TX4938_CCFG_BEOW);
- /* do reset on watchdog */
- tx4938_ccfg_set(TX4938_CCFG_WR);
- /* clear PCIC1 reset */
- txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
-
- /* enable Timeout BusError */
- if (tx4938_ccfg_toeon)
- tx4938_ccfg_set(TX4938_CCFG_TOE);
-
- /* DMA selection */
- txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
-
- /* Use external clock for external arbiter */
- if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
- txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
-
- printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
- txx9_pcode_str,
- (cpuclk + 500000) / 1000000,
- (txx9_master_clock + 500000) / 1000000,
- (__u32)____raw_readq(&tx4938_ccfgptr->crir),
- (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
- (unsigned long long)____raw_readq(&tx4938_ccfgptr->pcfg));
-
- printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
- for (i = 0; i < 4; i++) {
- u64 cr = TX4938_SDRAMC_CR(i);
- unsigned long ram_base, ram_size;
- if (!((unsigned long)cr & 0x00000400))
- continue; /* disabled */
- ram_base = (unsigned long)(cr >> 49) << 21;
- ram_size = ((unsigned long)(cr >> 33) + 1) << 21;
- if (ram_base >= 0x20000000)
- continue; /* high memory (ignore) */
- printk(KERN_CONT " CR%d:%016llx", i, cr);
- tx4938_sdram_resource[i].name = "SDRAM";
- tx4938_sdram_resource[i].start = ram_base;
- tx4938_sdram_resource[i].end = ram_base + ram_size - 1;
- tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
- request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
- }
- printk(KERN_CONT " TR:%09llx\n", ____raw_readq(&tx4938_sdramcptr->tr));
-
- /* SRAM */
- if (____raw_readq(&tx4938_sramcptr->cr) & 1) {
- unsigned int size = 0x800;
- unsigned long base =
- (____raw_readq(&tx4938_sramcptr->cr) >> (39-11))
- & ~(size - 1);
- tx4938_sram_resource.name = "SRAM";
- tx4938_sram_resource.start = base;
- tx4938_sram_resource.end = base + size - 1;
- tx4938_sram_resource.flags = IORESOURCE_MEM;
- request_resource(&iomem_resource, &tx4938_sram_resource);
- }
-
- /* TMR */
- for (i = 0; i < TX4938_NR_TMR; i++)
- txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
-
- /* enable DMA */
- for (i = 0; i < 2; i++)
- ____raw_writeq(TX4938_DMA_MCR_MSTEN,
- (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
-
- /* PIO */
- __raw_writel(0, &tx4938_pioptr->maskcpu);
- __raw_writel(0, &tx4938_pioptr->maskext);
-
-#ifdef CONFIG_PCI
- txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
-#endif
-}
static void __init rbtx4938_time_init(void)
{
- mips_hpt_frequency = txx9_cpu_clock / 2;
- if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
- txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
- TXX9_IRQ_BASE + TX4938_IR_TMR(0),
- txx9_gbus_clock / 2);
+ tx4938_time_init(0);
}
static void __init rbtx4938_mem_setup(void)
@@ -372,39 +186,24 @@
unsigned long long pcfg;
char *argptr;
- iomem_resource.end = 0xffffffff; /* 4GB */
-
if (txx9_master_clock == 0)
txx9_master_clock = 25000000; /* 25MHz */
- tx4938_board_setup();
-#ifndef CONFIG_PCI
+
+ tx4938_setup();
+
+#ifdef CONFIG_PCI
+ txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
+#else
set_io_port_base(RBTX4938_ETHER_BASE);
#endif
-#ifdef CONFIG_SERIAL_TXX9
- {
- extern int early_serial_txx9_setup(struct uart_port *port);
- int i;
- 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 = RBTX4938_IRQ_IRC_SIO(i);
- req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
- req.uartclk = 50000000;
- early_serial_txx9_setup(&req);
- }
- }
+ tx4938_setup_serial();
#ifdef CONFIG_SERIAL_TXX9_CONSOLE
argptr = prom_getcmdline();
if (strstr(argptr, "console=") == NULL) {
strcat(argptr, " console=ttyS0,38400");
}
#endif
-#endif
#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
printk("PIOSEL: disabling both ata and nand selection\n");
@@ -568,7 +367,6 @@
static void __init rbtx4938_arch_init(void)
{
- txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
gpiochip_add(&rbtx4938_spi_gpio_chip);
rbtx4938_pci_setup();
rbtx4938_spi_init();