--- /dev/null
+/*
+ * arch/ppc/platforms/ev64260.c
+ *
+ * Board setup routines for the Marvell/Galileo EV-64260-BP Evaluation Board.
+ *
+ * Author: Mark A. Greer <mgreer@mvista.com>
+ *
+ * 2001-2003 (c) MontaVista, Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+/*
+ * The EV-64260-BP port is the result of hard work from many people from
+ * many companies. In particular, employees of Marvell/Galileo, Mission
+ * Critical Linux, Xyterra, and MontaVista Software were heavily involved.
+ *
+ * Note: I have not been able to get *all* PCI slots to work reliably
+ * at 66 MHz. I recommend setting jumpers J15 & J16 to short pins 1&2
+ * so that 33 MHz is used. --MAG
+ * Note: The 750CXe and 7450 are not stable with a 125MHz or 133MHz TCLK/SYSCLK.
+ * At 100MHz, they are solid.
+ */
+#include <linux/config.h>
+
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+#include <linux/irq.h>
+#include <linux/fs.h>
+#include <linux/seq_file.h>
+#include <linux/console.h>
+#include <linux/initrd.h>
+#include <linux/root_dev.h>
+#if !defined(CONFIG_SERIAL_MPSC_CONSOLE)
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#endif
+#include <asm/bootinfo.h>
+#include <asm/machdep.h>
+#include <asm/mv64x60.h>
+#include <asm/ppcboot.h>
+#include <asm/todc.h>
+#include <asm/time.h>
+#include <asm/ocp.h>
+
+#include <platforms/ev64260.h>
+
+#define BOARD_VENDOR "Marvell/Galileo"
+#define BOARD_MACHINE "EV-64260-BP"
+
+/* Set IDE controllers into Native mode? */
+/* XXXX
+#define SET_PCI_IDE_NATIVE
+*/
+
+ulong ev64260_mem_size = 0;
+bd_t ppcboot_bd;
+int ppcboot_bd_valid=0;
+
+static mv64x60_handle_t bh;
+
+#if !defined(CONFIG_SERIAL_MPSC_CONSOLE)
+extern void gen550_progress(char *, unsigned short);
+extern void gen550_init(int, struct serial_struct *);
+#endif
+
+static const unsigned int cpu_7xx[16] = { /* 7xx & 74xx (but not 745x) */
+ 18, 15, 14, 2, 4, 13, 5, 9, 6, 11, 8, 10, 16, 12, 7, 0
+};
+static const unsigned int cpu_745x[2][16] = { /* PLL_EXT 0 & 1 */
+ { 1, 15, 14, 2, 4, 13, 5, 9, 6, 11, 8, 10, 16, 12, 7, 0 },
+ { 0, 30, 0, 2, 0, 26, 0, 18, 0, 22, 20, 24, 28, 32, 0, 0 }
+};
+
+
+TODC_ALLOC();
+
+static int
+ev64260_get_bus_speed(void)
+{
+ int speed;
+
+ if (ppcboot_bd_valid) {
+ speed = ppcboot_bd.bi_busfreq;
+ }
+ else {
+ speed = 100000000; /* Only 100MHz is stable */
+ }
+
+ return speed;
+}
+
+static int
+ev64260_get_cpu_speed(void)
+{
+ unsigned long pvr, hid1, pll_ext;
+
+ pvr = PVR_VER(mfspr(PVR));
+
+ if (pvr != PVR_VER(PVR_7450)) {
+ hid1 = mfspr(HID1) >> 28;
+ return ev64260_get_bus_speed() * cpu_7xx[hid1]/2;
+ }
+ else {
+ hid1 = (mfspr(HID1) & 0x0001e000) >> 13;
+ pll_ext = 0; /* No way to read; must get from schematic */
+ return ev64260_get_bus_speed() * cpu_745x[pll_ext][hid1]/2;
+ }
+}
+
+unsigned long __init
+ev64260_find_end_of_memory(void)
+{
+ if(!ppcboot_bd_valid) {
+ return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE,
+ MV64x60_TYPE_GT64260A);
+ }
+ return ppcboot_bd.bi_memsize;
+}
+
+#if 0 /* XXXX */
+#ifdef SET_PCI_IDE_NATIVE
+static void __init
+set_pci_native_mode(void)
+{
+ struct pci_dev *dev;
+
+ /* Better way of doing this ??? */
+ pci_for_each_dev(dev) {
+ int class = dev->class >> 8;
+
+ /* enable pci native mode */
+ if (class == PCI_CLASS_STORAGE_IDE) {
+ u8 reg;
+
+ pci_read_config_byte(dev, 0x9, ®);
+ if (reg == 0x8a) {
+ printk("PCI: Enabling PCI IDE native mode on %s\n", dev->slot_name);
+ pci_write_config_byte(dev, 0x9, 0x8f);
+
+ /* let the pci code set this device up after we change it */
+ pci_setup_device(dev);
+ } else if (reg != 0x8f) {
+ printk("PCI: IDE chip in unknown mode 0x%02x on %s", reg, dev->slot_name);
+ }
+ }
+ }
+}
+#endif
+#endif
+
+static void __init
+ev64260_pci_fixups(void)
+{
+#ifdef SET_PCI_IDE_NATIVE
+ set_pci_native_mode();
+#endif
+}
+
+
+/*
+ * Marvell/Galileo EV-64260-BP Evaluation Board PCI interrupt routing.
+ * Note: By playing with J8 and JP1-4, you can get 2 IRQ's from the first
+ * PCI bus (in which cast, INTPIN B would be EV64260_PCI_1_IRQ).
+ * This is the most IRQs you can get from one bus with this board, though.
+ */
+static int __init
+ev64260_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+ struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
+
+ if (hose->index == 0) {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {EV64260_PCI_0_IRQ,0,0,0}, /* IDSEL 7 - PCI bus 0 */
+ {EV64260_PCI_0_IRQ,0,0,0}, /* IDSEL 8 - PCI bus 0 */
+ };
+
+ const long min_idsel = 7, max_idsel = 8, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ }
+ else {
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ { EV64260_PCI_1_IRQ,0,0,0}, /* IDSEL 7 - PCI bus 1 */
+ { EV64260_PCI_1_IRQ,0,0,0}, /* IDSEL 8 - PCI bus 1 */
+ };
+
+ const long min_idsel = 7, max_idsel = 8, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+ }
+}
+
+static void __init
+ev64260_setup_peripherals(void)
+{
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
+ EV64260_EMB_FLASH_BASE, EV64260_EMB_FLASH_SIZE, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN,
+ EV64260_EXT_SRAM_BASE, EV64260_EXT_SRAM_SIZE, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN,
+ EV64260_TODC_BASE, EV64260_TODC_SIZE, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN,
+ EV64260_UART_BASE, EV64260_UART_SIZE, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_3_WIN,
+ EV64260_EXT_FLASH_BASE, EV64260_EXT_FLASH_SIZE, 0);
+
+ TODC_INIT(TODC_TYPE_DS1501, 0, 0,
+ ioremap(EV64260_TODC_BASE, EV64260_TODC_SIZE), 8);
+
+ mv64x60_clr_bits(&bh, MV64x60_CPU_CONFIG, ((1<<28) | (1<<29)));
+ mv64x60_set_bits(&bh, MV64x60_CPU_CONFIG, (1<<27));
+
+ if (ev64260_get_bus_speed() > 100000000) {
+ mv64x60_set_bits(&bh, MV64x60_CPU_CONFIG, (1<<23));
+ }
+
+ mv64x60_set_bits(&bh, MV64x60_PCI0_PCI_DECODE_CNTL,((1<<0) | (1<<3)));
+ mv64x60_set_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL,((1<<0) | (1<<3)));
+
+ /*
+ * Enabling of PCI internal-vs-external arbitration
+ * is a platform- and errata-dependent decision.
+ */
+ if (bh.type == MV64x60_TYPE_GT64260A ) {
+ mv64x60_set_bits(&bh, MV64x60_PCI0_ARBITER_CNTL, (1<<31));
+ mv64x60_set_bits(&bh, MV64x60_PCI1_ARBITER_CNTL, (1<<31));
+ }
+
+ mv64x60_set_bits(&bh, MV64x60_CPU_MASTER_CNTL, (1<<9)); /* Only 1 cpu */
+
+ /*
+ * The EV-64260-BP uses several Multi-Purpose Pins (MPP) on the 64260
+ * bridge as interrupt inputs (via the General Purpose Ports (GPP)
+ * register). Need to route the MPP inputs to the GPP and set the
+ * polarity correctly.
+ *
+ * In MPP Control 2 Register
+ * MPP 21 -> GPP 21 (DUART channel A intr) bits 20-23 -> 0
+ * MPP 22 -> GPP 22 (DUART channel B intr) bits 24-27 -> 0
+ */
+ mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_2, (0xf<<20) | (0xf<<24) );
+
+ /*
+ * In MPP Control 3 Register
+ * MPP 26 -> GPP 26 (RTC INT) bits 8-11 -> 0
+ * MPP 27 -> GPP 27 (PCI 0 INTA) bits 12-15 -> 0
+ * MPP 29 -> GPP 29 (PCI 1 INTA) bits 20-23 -> 0
+ */
+ mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_3,
+ (0xf<<8) | (0xf<<12) | (0xf<<20));
+
+#define GPP_EXTERNAL_INTERRUPTS \
+ ((1<<21) | (1<<22) | (1<<26) | (1<<27) | (1<<29))
+ /* DUART & PCI interrupts are inputs */
+ mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, GPP_EXTERNAL_INTERRUPTS);
+ /* DUART & PCI interrupts are active low */
+ mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, GPP_EXTERNAL_INTERRUPTS);
+
+ /* Clear any pending interrupts for these inputs and enable them. */
+ mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~GPP_EXTERNAL_INTERRUPTS);
+ mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, GPP_EXTERNAL_INTERRUPTS);
+
+ /*
+ * Set MPSC Multiplex RMII
+ * NOTE: ethernet driver modifies bit 0 and 1
+ */
+ mv64x60_write(&bh, GT64260_MPP_SERIAL_PORTS_MULTIPLEX, 0x00001102);
+ return;
+}
+
+
+static void __init
+ev64260_setup_bridge(void)
+{
+ mv64x60_setup_info_t si;
+ int i;
+
+ memset(&si, 0, sizeof(si));
+
+ si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
+ si.map_irq = ev64260_map_irq;
+
+ si.pci_0.enable_bus = 1;
+ si.pci_0.enumerate_bus = 1;
+ si.pci_0.pci_io.cpu_base = 0xa0000000;
+ si.pci_0.pci_io.pci_base_hi = 0;
+ si.pci_0.pci_io.pci_base_lo = 0;
+ si.pci_0.pci_io.size = 0x01000000;
+ si.pci_0.pci_io.swap = 0x01000000; /* XXXX No swapping */
+ si.pci_0.pci_mem[0].cpu_base = 0x80000000;
+ si.pci_0.pci_mem[0].pci_base_hi = 0;
+ si.pci_0.pci_mem[0].pci_base_lo = 0x80000000;
+ si.pci_0.pci_mem[0].size = 0x10000000;
+ si.pci_0.pci_mem[0].swap = 0x01000000; /* XXXX No swapping */
+ si.pci_0.pci_mem[1].cpu_base = 0;
+ si.pci_0.pci_mem[1].pci_base_hi = 0;
+ si.pci_0.pci_mem[1].pci_base_lo = 0;
+ si.pci_0.pci_mem[1].size = 0; /* Don't use this window */
+ si.pci_0.pci_mem[1].swap = 0;
+ si.pci_0.pci_mem[2].cpu_base = 0;
+ si.pci_0.pci_mem[2].pci_base_hi = 0;
+ si.pci_0.pci_mem[2].pci_base_lo = 0;
+ si.pci_0.pci_mem[2].size = 0; /* Don't use this window */
+ si.pci_0.pci_mem[1].swap = 0;
+ si.pci_0.pci_cmd_bits = 0;
+ si.pci_0.latency_timer = 0x8;
+
+ si.pci_1.enable_bus = 1;
+ si.pci_1.enumerate_bus = 1;
+ si.pci_1.pci_io.cpu_base = 0xa1000000;
+ si.pci_1.pci_io.pci_base_hi = 0;
+ si.pci_1.pci_io.pci_base_lo = 0x01000000;
+ si.pci_1.pci_io.size = 0x01000000;
+ si.pci_1.pci_io.swap = 0x01000000; /* XXXX No swapping */
+ si.pci_1.pci_mem[0].cpu_base = 0x90000000;
+ si.pci_1.pci_mem[0].pci_base_hi = 0;
+ si.pci_1.pci_mem[0].pci_base_lo = 0x90000000;
+ si.pci_1.pci_mem[0].size = 0x10000000;
+ si.pci_1.pci_mem[0].swap = 0x01000000; /* XXXX No swapping */
+ si.pci_1.pci_mem[1].cpu_base = 0;
+ si.pci_1.pci_mem[1].pci_base_hi = 0;
+ si.pci_1.pci_mem[1].pci_base_lo = 0;
+ si.pci_1.pci_mem[1].size = 0; /* Don't use this window */
+ si.pci_1.pci_mem[1].swap = 0;
+ si.pci_1.pci_mem[2].cpu_base = 0;
+ si.pci_1.pci_mem[2].pci_base_hi = 0;
+ si.pci_1.pci_mem[2].pci_base_lo = 0;
+ si.pci_1.pci_mem[2].size = 0; /* Don't use this window */
+ si.pci_1.pci_mem[1].swap = 0;
+ si.pci_1.pci_cmd_bits = 0;
+ si.pci_1.latency_timer = 0x8;
+ si.pci_1.pci_cmd_bits = 0;
+ si.pci_1.latency_timer = 0x8;
+
+ for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++) {
+ si.cpu_prot_options[i] = 0;
+ si.cpu_snoop_options[i] = GT64260_CPU_SNOOP_WB;
+ si.pci_0.acc_cntl_options[i] =
+ /* Breaks PCI (especially slot 4)
+ GT64260_PCI_ACC_CNTL_PREFETCHEN |
+ */
+ GT64260_PCI_ACC_CNTL_DREADEN |
+ GT64260_PCI_ACC_CNTL_RDPREFETCH |
+ GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
+ GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
+ GT64260_PCI_ACC_CNTL_SWAP_NONE |
+ GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
+ si.pci_0.snoop_options[i] = GT64260_PCI_SNOOP_WB;
+ si.pci_1.acc_cntl_options[i] =
+ /* Breaks PCI (especially slot 4)
+ GT64260_PCI_ACC_CNTL_PREFETCHEN |
+ */
+ GT64260_PCI_ACC_CNTL_DREADEN |
+ GT64260_PCI_ACC_CNTL_RDPREFETCH |
+ GT64260_PCI_ACC_CNTL_RDLINEPREFETCH |
+ GT64260_PCI_ACC_CNTL_RDMULPREFETCH |
+ GT64260_PCI_ACC_CNTL_SWAP_NONE |
+ GT64260_PCI_ACC_CNTL_MBURST_32_BTYES;
+ si.pci_1.snoop_options[i] = GT64260_PCI_SNOOP_WB;
+ }
+
+ /* Lookup PCI host bridges */
+ if (mv64x60_init(&bh, &si)) {
+ printk("Bridge initialization failed.\n");
+ }
+
+ return;
+}
+
+#if defined(CONFIG_SERIAL_8250) && !defined(CONFIG_SERIAL_MPSC_CONSOLE)
+static void __init
+ev64260_early_serial_map(void)
+{
+ struct uart_port port;
+ static char first_time = 1;
+
+ if (first_time) {
+ memset(&port, 0, sizeof(port));
+
+ port.membase = ioremap(EV64260_SERIAL_0, EV64260_UART_SIZE);
+ port.irq = EV64260_UART_0_IRQ;
+ port.uartclk = BASE_BAUD * 16;
+ port.regshift = 2;
+ port.iotype = SERIAL_IO_MEM;
+ port.flags = STD_COM_FLAGS;
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ gen550_init(0, &port);
+#endif
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 0 failed\n");
+ }
+
+#if 0 /* XXXX */
+ /* Assume early_serial_setup() doesn't modify port */
+ port.membase = ioremap(EV64260_SERIAL_1, EV64260_UART_SIZE);
+ port.irq = EV64260_UART_1_IRQ;
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ gen550_init(1, &port);
+#endif
+
+ if (early_serial_setup(&port) != 0) {
+ printk("Early serial init of port 1 failed\n");
+ }
+#endif
+
+ first_time = 0;
+ }
+
+ return;
+}
+#elif defined(CONFIG_SERIAL_MPSC_CONSOLE)
+static void __init
+ev64260_early_serial_map(void)
+{
+#ifdef CONFIG_KGDB
+ static char first_time = 1;
+
+
+#if defined(CONFIG_KGDB_TTYS0)
+#define KGDB_PORT 0
+#elif defined(CONFIG_KGDB_TTYS1)
+#define KGDB_PORT 1
+#else
+#error "Invalid kgdb_tty port"
+#endif
+
+ if (first_time) {
+ gt_early_mpsc_init(KGDB_PORT, B9600|CS8|CREAD|HUPCL|CLOCAL);
+ first_time = 0;
+ }
+
+ return;
+#endif
+}
+#endif
+
+static void __init
+ev64260_fixup_ocp(void)
+{
+#if defined(CONFIG_SERIAL_MPSC)
+ struct ocp_device *dev;
+ mv64x60_ocp_mpsc_data_t *dp;
+
+ if ((dev = ocp_find_device(OCP_VENDOR_MARVELL, OCP_FUNC_MPSC, 0))
+ != NULL) {
+ dp = (mv64x60_ocp_mpsc_data_t *)dev->def->additions;
+
+ dp->max_idle = 40; /* XXXX what should this be? */
+ dp->default_baud = EV64260_DEFAULT_BAUD;
+ dp->brg_clk_src = EV64260_MPSC_CLK_SRC;
+ dp->brg_clk_freq = EV64260_MPSC_CLK_FREQ;
+ }
+
+ if ((dev = ocp_find_device(OCP_VENDOR_MARVELL, OCP_FUNC_MPSC, 1))
+ != NULL) {
+ dp = (mv64x60_ocp_mpsc_data_t *)dev->def->additions;
+
+ dp->max_idle = 40; /* XXXX what should this be? */
+ dp->default_baud = 9600; /* XXXX */
+ dp->brg_clk_src = EV64260_MPSC_CLK_SRC;
+ dp->brg_clk_freq = EV64260_MPSC_CLK_FREQ;
+ }
+#endif
+
+ return;
+}
+
+static void __init
+ev64260_setup_arch(void)
+{
+ if ( ppc_md.progress )
+ ppc_md.progress("ev64260_setup_arch: enter", 0);
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (initrd_start)
+ ROOT_DEV = Root_RAM0;
+ else
+#endif
+#ifdef CONFIG_ROOT_NFS
+ ROOT_DEV = Root_NFS;
+#else
+ ROOT_DEV = Root_SDA2;
+#endif
+
+ if ( ppc_md.progress )
+ ppc_md.progress("ev64260_setup_arch: Enabling L2 cache", 0);
+
+ /* Enable L2 and L3 caches (if 745x) */
+ _set_L2CR(_get_L2CR() | L2CR_L2E);
+ _set_L3CR(_get_L3CR() | L3CR_L3E);
+
+ if ( ppc_md.progress )
+ ppc_md.progress("ev64260_setup_arch: Initializing bridge", 0);
+
+ ev64260_setup_bridge(); /* set up PCI bridge(s) */
+ ev64260_setup_peripherals(); /* set up chip selects/GPP/MPP etc */
+
+ if ( ppc_md.progress )
+ ppc_md.progress("ev64260_setup_arch: bridge init complete", 0);
+
+ /* Set OCP values to reflect this board's setup */
+ ev64260_fixup_ocp();
+
+#ifdef CONFIG_DUMMY_CONSOLE
+ conswitchp = &dummy_con;
+#endif
+#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_MPSC_CONSOLE)
+ ev64260_early_serial_map();
+#endif
+
+ printk(BOARD_VENDOR " " BOARD_MACHINE "\n");
+ printk("EV-64260-BP port (C) 2001 MontaVista Software, Inc. (source@mvista.com)\n");
+
+ if ( ppc_md.progress )
+ ppc_md.progress("ev64260_setup_arch: exit", 0);
+
+ return;
+}
+
+static void
+ev64260_reset_board(void *addr)
+{
+ local_irq_disable();
+
+ /* disable and invalidate the L2 cache */
+ _set_L2CR(0);
+ _set_L2CR(0x200000);
+
+ /* flush and disable L1 I/D cache */
+ __asm__ __volatile__
+ ("mfspr 3,1008\n\t"
+ "ori 5,5,0xcc00\n\t"
+ "ori 4,3,0xc00\n\t"
+ "andc 5,3,5\n\t"
+ "sync\n\t"
+ "mtspr 1008,4\n\t"
+ "isync\n\t"
+ "sync\n\t"
+ "mtspr 1008,5\n\t"
+ "isync\n\t"
+ "sync\n\t");
+
+ /* unmap any other random cs's that might overlap with bootcs */
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN, 0, 0, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN, 0, 0, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN, 0, 0, 0);
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_3_WIN, 0, 0, 0);
+
+ /* map bootrom back in to gt @ reset defaults */
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
+ 0xff800000, 8*1024*1024, 0);
+
+ /* move gt reg base back to default, setup default pci0 swapping
+ * config... */
+ mv64x60_write(&bh, MV64x60_INTERNAL_SPACE_DECODE,
+ (1<<24) | MV64x60_INTERNAL_SPACE_DEFAULT_ADDR>>20);
+
+ /* NOTE: FROM NOW ON no more GT_REGS accesses.. 0x1 is not mapped
+ * via BAT or MMU, and MSR IR/DR is ON */
+#if 0
+ /* BROKEN... IR/DR is still on !! won't work!! */
+ /* Set exception prefix high - to the firmware */
+ _nmask_and_or_msr(0, MSR_IP);
+
+ out_8((u_char *)EV64260_BOARD_MODRST_REG, 0x01);
+#else
+ /* SRR0 has system reset vector, SRR1 has default MSR value */
+ /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */
+ /* NOTE: assumes reset vector is at 0xfff00100 */
+ __asm__ __volatile__
+ ("mtspr 26, %0\n\t"
+ "li 4,(1<<6)\n\t"
+ "mtspr 27,4\n\t"
+ "rfi\n\t"
+ :: "r" (addr):"r4");
+#endif
+ return;
+}
+
+static void
+ev64260_restart(char *cmd)
+{
+ volatile ulong i = 10000000;
+
+ ev64260_reset_board((void *)0xfff00100);
+
+ while (i-- > 0);
+ panic("restart failed\n");
+}
+
+static void
+ev64260_halt(void)
+{
+ local_irq_disable();
+ while (1);
+ /* NOTREACHED */
+}
+
+static void
+ev64260_power_off(void)
+{
+ ev64260_halt();
+ /* NOTREACHED */
+}
+
+static int
+ev64260_show_cpuinfo(struct seq_file *m)
+{
+ uint pvid;
+
+ pvid = mfspr(PVR);
+ seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
+ seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
+ seq_printf(m, "cpu MHz\t\t: %d\n", ev64260_get_cpu_speed()/1000/1000);
+ seq_printf(m, "bus MHz\t\t: %d\n", ev64260_get_bus_speed()/1000/1000);
+
+ return 0;
+}
+
+/* DS1501 RTC has too much variation to use RTC for calibration */
+static void __init
+ev64260_calibrate_decr(void)
+{
+ ulong freq;
+
+ freq = ev64260_get_bus_speed()/4;
+
+ printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
+ freq/1000000, freq%1000000);
+
+ tb_ticks_per_jiffy = freq / HZ;
+ tb_to_us = mulhwu_scale_factor(freq, 1000000);
+
+ return;
+}
+
+#if 0 /* XXXX */
+#ifdef CONFIG_USE_PPCBOOT
+static void parse_ppcbootinfo(unsigned long r3,
+ unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ bd_t *bd=NULL;
+ char *cmdline_start=NULL;
+ int cmdline_len=0;
+
+ if(r3) {
+ if((r3 & 0xf0000000) == 0) r3 += KERNELBASE;
+ if((r3 & 0xf0000000) == KERNELBASE) {
+ bd=(void *)r3;
+
+ /* hack for ppcboot loaders that report freqs in Mhz */
+ if(bd->bi_intfreq<1000000) bd->bi_intfreq*=1000000;
+ if(bd->bi_busfreq<1000000) bd->bi_busfreq*=1000000;
+
+ memcpy(&ppcboot_bd,bd,sizeof(ppcboot_bd));
+ ppcboot_bd_valid=1;
+ }
+ }
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ if(r4 && r5 && r5>r4) {
+ if((r4 & 0xf0000000) == 0) r4 += KERNELBASE;
+ if((r5 & 0xf0000000) == 0) r5 += KERNELBASE;
+ if((r4 & 0xf0000000) == KERNELBASE) {
+ initrd_start=r4;
+ initrd_end=r5;
+ initrd_below_start_ok = 1;
+ }
+ }
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+ if(r6 && r7 && r7>r6) {
+ if((r6 & 0xf0000000) == 0) r6 += KERNELBASE;
+ if((r7 & 0xf0000000) == 0) r7 += KERNELBASE;
+ if((r6 & 0xf0000000) == KERNELBASE) {
+ cmdline_start=(void *)r6;
+ cmdline_len=(r7-r6);
+ strncpy(cmd_line,cmdline_start,cmdline_len);
+ }
+ }
+
+ if(ppcboot_bd_valid) {
+ printk("found bd_t @%p\n", bd);
+ printk("memstart=%08lx\n", bd->bi_memstart);
+ printk("memsize=%08lx\n", bd->bi_memsize);
+ printk("enetaddr=%02x%02x%02x%02x%02x%02x\n",
+ bd->bi_enetaddr[0],
+ bd->bi_enetaddr[1],
+ bd->bi_enetaddr[2],
+ bd->bi_enetaddr[3],
+ bd->bi_enetaddr[4],
+ bd->bi_enetaddr[5]
+ );
+ printk("intfreq=%ld\n", bd->bi_intfreq);
+ printk("busfreq=%ld\n", bd->bi_busfreq);
+ printk("baudrate=%ld\n", bd->bi_baudrate);
+ }
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ if(initrd_start) {
+ printk("found initrd @%lx-%lx\n", initrd_start, initrd_end);
+ }
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+ if(cmdline_start && cmdline_len) {
+ printk("found cmdline: '%s'\n", cmd_line);
+ }
+}
+#endif /* USE PPC_BOOT */
+#endif
+
+#if 0 /* XXXX */
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+static int
+ev64260_ide_check_region(ide_ioreg_t from, unsigned int extent)
+{
+ return check_region(from, extent);
+}
+
+static void
+ev64260_ide_request_region(ide_ioreg_t from,
+ unsigned int extent,
+ const char *name)
+{
+ request_region(from, extent, name);
+ return;
+}
+
+static void
+ev64260_ide_release_region(ide_ioreg_t from,
+ unsigned int extent)
+{
+ release_region(from, extent);
+ return;
+}
+
+static void __init
+ev64260_ide_pci_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port,
+ ide_ioreg_t ctrl_port, int *irq)
+{
+ struct pci_dev *dev;
+#if 1 /* NTL */
+ int i;
+
+ //printk("regs %d to %d @ 0x%x\n", IDE_DATA_OFFSET, IDE_STATUS_OFFSET, data_port);
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+ hw->io_ports[i] = data_port;
+ data_port++;
+ }
+
+ //printk("ctrl %d @ 0x%x\n", IDE_CONTROL_OFFSET, ctrl_port);
+ hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
+#endif
+
+ pci_for_each_dev(dev) {
+ if (((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) ||
+ ((dev->class >> 8) == PCI_CLASS_STORAGE_RAID)) {
+ hw->irq = dev->irq;
+
+ if (irq != NULL) {
+ *irq = dev->irq;
+ }
+ }
+ }
+
+ return;
+}
+#endif
+#endif
+
+#if !defined(CONFIG_USE_PPCBOOT)
+/*
+ * Set BAT 3 to map 0xfb000000 to 0xfc000000 of physical memory space.
+ */
+static __inline__ void
+ev64260_set_bat(void)
+{
+ mb();
+ mtspr(DBAT1U, 0xfb0001fe);
+ mtspr(DBAT1L, 0xfb00002a);
+ mb();
+
+ return;
+}
+#endif
+
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+static void __init
+ev64260_map_io(void)
+{
+ io_block_mapping(0xfb000000, 0xfb000000, 0x01000000, _PAGE_IO);
+}
+#endif
+
+void __init
+platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+ extern int initrd_below_start_ok;
+
+ initrd_start=initrd_end=0;
+ initrd_below_start_ok=0;
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+ ppcboot_bd_valid=0;
+ memset(&ppcboot_bd,0,sizeof(ppcboot_bd));
+
+#ifdef CONFIG_USE_PPCBOOT
+ parse_ppcbootinfo(r3, r4, r5, r6, r7);
+#else
+ parse_bootinfo(find_bootinfo());
+#endif
+
+ isa_mem_base = 0;
+ isa_io_base = 0xa0000000; /* XXXX */
+ pci_dram_offset = 0x80000000; /* XXXX */
+
+ loops_per_jiffy = ev64260_get_cpu_speed() / HZ;
+
+ ppc_md.setup_arch = ev64260_setup_arch;
+ ppc_md.show_cpuinfo = ev64260_show_cpuinfo;
+ ppc_md.init_IRQ = gt64260_init_irq;
+ ppc_md.get_irq = gt64260_get_irq;
+
+ ppc_md.pcibios_fixup = ev64260_pci_fixups;
+
+ ppc_md.restart = ev64260_restart;
+ ppc_md.power_off = ev64260_power_off;
+ ppc_md.halt = ev64260_halt;
+
+ ppc_md.find_end_of_memory = ev64260_find_end_of_memory;
+
+ ppc_md.init = NULL;
+
+ ppc_md.time_init = todc_time_init;
+ ppc_md.set_rtc_time = todc_set_rtc_time;
+ ppc_md.get_rtc_time = todc_get_rtc_time;
+
+ ppc_md.nvram_read_val = todc_direct_read_val;
+ ppc_md.nvram_write_val = todc_direct_write_val;
+
+ ppc_md.calibrate_decr = ev64260_calibrate_decr;
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+ ppc_ide_md.ide_init_hwif = ev64260_ide_pci_init_hwif_ports;
+#endif
+
+ bh.p_base = CONFIG_MV64X60_NEW_BASE;
+
+#if !defined(CONFIG_USE_PPCBOOT)
+ ev64260_set_bat();
+#endif
+
+#ifdef CONFIG_SERIAL_8250
+#if defined(CONFIG_SERIAL_TEXT_DEBUG)
+ ppc_md.setup_io_mappings = ev64260_map_io;
+ ppc_md.progress = gen550_progress;
+#endif
+#if defined(CONFIG_KGDB)
+ ppc_md.setup_io_mappings = ev64260_map_io;
+ ppc_md.early_serial_map = ev64260_early_serial_map;
+#endif
+#elif defined(CONFIG_SERIAL_MPSC_CONSOLE)
+#ifdef CONFIG_SERIAL_TEXT_DEBUG
+ ppc_md.setup_io_mappings = ev64260_map_io;
+ ppc_md.progress = gt64260_mpsc_progress;
+#endif /* CONFIG_SERIAL_TEXT_DEBUG */
+#ifdef CONFIG_KGDB
+ ppc_md.setup_io_mappings = ev64260_map_io;
+ ppc_md.early_serial_map = ev64260_early_serial_map;
+#endif /* CONFIG_KGDB */
+
+#endif
+
+ return;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff