--- /dev/null
+/*
+ * arch/ppc/platforms/radstone_ppc7d.c
+ *
+ * Board setup routines for the Radstone PPC7D boards.
+ *
+ * Author: James Chapman <jchapman@katalix.com>
+ *
+ * Based on code done by Rabeeh Khoury - rabeeh@galileo.co.il
+ * Based on code done by - Mark A. Greer <mgreer@mvista.com>
+ *
+ * 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.
+ */
+
+/* Radstone PPC7D boards are rugged VME boards with PPC 7447A CPUs,
+ * Discovery-II, dual gigabit ethernet, dual PMC, USB, keyboard/mouse,
+ * 4 serial ports, 2 high speed serial ports (MPSCs) and optional
+ * SCSI / VGA.
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/initrd.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/ide.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/serial.h>
+#include <linux/tty.h> /* for linux/serial_core.h */
+#include <linux/serial_core.h>
+#include <linux/mv643xx.h>
+#include <linux/netdevice.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/time.h>
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/smp.h>
+#include <asm/vga.h>
+#include <asm/open_pic.h>
+#include <asm/i8259.h>
+#include <asm/todc.h>
+#include <asm/bootinfo.h>
+#include <asm/mpc10x.h>
+#include <asm/pci-bridge.h>
+#include <asm/mv64x60.h>
+#include <asm/i8259.h>
+
+#include "radstone_ppc7d.h"
+
+#undef DEBUG
+
+#define PPC7D_RST_PIN 17 /* GPP17 */
+
+extern u32 mv64360_irq_base;
+extern spinlock_t rtc_lock;
+
+static struct mv64x60_handle bh;
+static int ppc7d_has_alma;
+
+extern void gen550_progress(char *, unsigned short);
+extern void gen550_init(int, struct uart_port *);
+
+/* FIXME - move to h file */
+extern int ds1337_do_command(int id, int cmd, void *arg);
+#define DS1337_GET_DATE 0
+#define DS1337_SET_DATE 1
+
+/* residual data */
+unsigned char __res[sizeof(bd_t)];
+
+/*****************************************************************************
+ * Serial port code
+ *****************************************************************************/
+
+#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
+static void __init ppc7d_early_serial_map(void)
+{
+#if defined(CONFIG_SERIAL_MPSC_CONSOLE)
+ mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
+#elif defined(CONFIG_SERIAL_8250)
+ struct uart_port serial_req;
+
+ /* Setup serial port access */
+ memset(&serial_req, 0, sizeof(serial_req));
+ serial_req.uartclk = UART_CLK;
+ serial_req.irq = 4;
+ serial_req.flags = STD_COM_FLAGS;
+ serial_req.iotype = SERIAL_IO_MEM;
+ serial_req.membase = (u_char *) PPC7D_SERIAL_0;
+
+ gen550_init(0, &serial_req);
+ if (early_serial_setup(&serial_req) != 0)
+ printk(KERN_ERR "Early serial init of port 0 failed\n");
+
+ /* Assume early_serial_setup() doesn't modify serial_req */
+ serial_req.line = 1;
+ serial_req.irq = 3;
+ serial_req.membase = (u_char *) PPC7D_SERIAL_1;
+
+ gen550_init(1, &serial_req);
+ if (early_serial_setup(&serial_req) != 0)
+ printk(KERN_ERR "Early serial init of port 1 failed\n");
+#else
+#error CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG has no supported CONFIG_SERIAL_XXX
+#endif
+}
+#endif /* CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG */
+
+/*****************************************************************************
+ * Low-level board support code
+ *****************************************************************************/
+
+static unsigned long __init ppc7d_find_end_of_memory(void)
+{
+ bd_t *bp = (bd_t *) __res;
+
+ if (bp->bi_memsize)
+ return bp->bi_memsize;
+
+ return (256 * 1024 * 1024);
+}
+
+static void __init ppc7d_map_io(void)
+{
+ /* remove temporary mapping */
+ mtspr(SPRN_DBAT3U, 0x00000000);
+ mtspr(SPRN_DBAT3L, 0x00000000);
+
+ io_block_mapping(0xe8000000, 0xe8000000, 0x08000000, _PAGE_IO);
+ io_block_mapping(0xfe000000, 0xfe000000, 0x02000000, _PAGE_IO);
+}
+
+static void ppc7d_restart(char *cmd)
+{
+ u32 data;
+
+ /* Disable GPP17 interrupt */
+ data = mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
+ data &= ~(1 << PPC7D_RST_PIN);
+ mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, data);
+
+ /* Configure MPP17 as GPP */
+ data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
+ data &= ~(0x0000000f << 4);
+ mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
+
+ /* Enable pin GPP17 for output */
+ data = mv64x60_read(&bh, MV64x60_GPP_IO_CNTL);
+ data |= (1 << PPC7D_RST_PIN);
+ mv64x60_write(&bh, MV64x60_GPP_IO_CNTL, data);
+
+ /* Toggle GPP9 pin to reset the board */
+ mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, 1 << PPC7D_RST_PIN);
+ mv64x60_write(&bh, MV64x60_GPP_VALUE_SET, 1 << PPC7D_RST_PIN);
+
+ for (;;) ; /* Spin until reset happens */
+ /* NOTREACHED */
+}
+
+static void ppc7d_power_off(void)
+{
+ u32 data;
+
+ local_irq_disable();
+
+ /* Ensure that internal MV643XX watchdog is disabled.
+ * The Disco watchdog uses MPP17 on this hardware.
+ */
+ data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
+ data &= ~(0x0000000f << 4);
+ mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
+
+ data = mv64x60_read(&bh, MV64x60_WDT_WDC);
+ if (data & 0x80000000) {
+ mv64x60_write(&bh, MV64x60_WDT_WDC, 1 << 24);
+ mv64x60_write(&bh, MV64x60_WDT_WDC, 2 << 24);
+ }
+
+ for (;;) ; /* No way to shut power off with software */
+ /* NOTREACHED */
+}
+
+static void ppc7d_halt(void)
+{
+ ppc7d_power_off();
+ /* NOTREACHED */
+}
+
+static unsigned long ppc7d_led_no_pulse;
+
+static int __init ppc7d_led_pulse_disable(char *str)
+{
+ ppc7d_led_no_pulse = 1;
+ return 1;
+}
+
+/* This kernel option disables the heartbeat pulsing of a board LED */
+__setup("ledoff", ppc7d_led_pulse_disable);
+
+static void ppc7d_heartbeat(void)
+{
+ u32 data32;
+ u8 data8;
+ static int max706_wdog = 0;
+
+ /* Unfortunately we can't access the LED control registers
+ * during early init because they're on the CPLD which is the
+ * other side of a PCI bridge which goes unreachable during
+ * PCI scan. So write the LEDs only if the MV64360 watchdog is
+ * enabled (i.e. userspace apps are running so kernel is up)..
+ */
+ data32 = mv64x60_read(&bh, MV64x60_WDT_WDC);
+ if (data32 & 0x80000000) {
+ /* Enable MAX706 watchdog if not done already */
+ if (!max706_wdog) {
+ outb(3, PPC7D_CPLD_RESET);
+ max706_wdog = 1;
+ }
+
+ /* Hit the MAX706 watchdog */
+ outb(0, PPC7D_CPLD_WATCHDOG_TRIG);
+
+ /* Pulse LED DS219 if not disabled */
+ if (!ppc7d_led_no_pulse) {
+ static int led_on = 0;
+
+ data8 = inb(PPC7D_CPLD_LEDS);
+ if (led_on)
+ data8 &= ~PPC7D_CPLD_LEDS_DS219_MASK;
+ else
+ data8 |= PPC7D_CPLD_LEDS_DS219_MASK;
+
+ outb(data8, PPC7D_CPLD_LEDS);
+ led_on = !led_on;
+ }
+ }
+ ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
+}
+
+static int ppc7d_show_cpuinfo(struct seq_file *m)
+{
+ u8 val;
+ u8 val1, val2;
+ static int flash_sizes[4] = { 64, 32, 0, 16 };
+ static int flash_banks[4] = { 4, 3, 2, 1 };
+ static int sdram_bank_sizes[4] = { 128, 256, 512, 1 };
+ int sdram_num_banks = 2;
+ static char *pci_modes[] = { "PCI33", "PCI66",
+ "Unknown", "Unknown",
+ "PCIX33", "PCIX66",
+ "PCIX100", "PCIX133"
+ };
+
+ seq_printf(m, "vendor\t\t: Radstone Technology\n");
+ seq_printf(m, "machine\t\t: PPC7D\n");
+
+ val = inb(PPC7D_CPLD_BOARD_REVISION);
+ val1 = (val & PPC7D_CPLD_BOARD_REVISION_NUMBER_MASK) >> 5;
+ val2 = (val & PPC7D_CPLD_BOARD_REVISION_LETTER_MASK);
+ seq_printf(m, "revision\t: %hd%c%c\n",
+ val1,
+ (val2 <= 0x18) ? 'A' + val2 : 'Y',
+ (val2 > 0x18) ? 'A' + (val2 - 0x19) : ' ');
+
+ val = inb(PPC7D_CPLD_MOTHERBOARD_TYPE);
+ val1 = val & PPC7D_CPLD_MB_TYPE_PLL_MASK;
+ val2 = val & (PPC7D_CPLD_MB_TYPE_ECC_FITTED_MASK |
+ PPC7D_CPLD_MB_TYPE_ECC_ENABLE_MASK);
+ seq_printf(m, "bus speed\t: %dMHz\n",
+ (val1 == PPC7D_CPLD_MB_TYPE_PLL_133) ? 133 :
+ (val1 == PPC7D_CPLD_MB_TYPE_PLL_100) ? 100 :
+ (val1 == PPC7D_CPLD_MB_TYPE_PLL_64) ? 64 : 0);
+
+ val = inb(PPC7D_CPLD_MEM_CONFIG);
+ if (val & PPC7D_CPLD_SDRAM_BANK_NUM_MASK) sdram_num_banks--;
+
+ val = inb(PPC7D_CPLD_MEM_CONFIG_EXTEND);
+ val1 = (val & PPC7D_CPLD_SDRAM_BANK_SIZE_MASK) >> 6;
+ seq_printf(m, "SDRAM\t\t: %d banks of %d%c, total %d%c",
+ sdram_num_banks,
+ sdram_bank_sizes[val1],
+ (sdram_bank_sizes[val1] < 128) ? 'G' : 'M',
+ sdram_num_banks * sdram_bank_sizes[val1],
+ (sdram_bank_sizes[val1] < 128) ? 'G' : 'M');
+ if (val2 & PPC7D_CPLD_MB_TYPE_ECC_FITTED_MASK) {
+ seq_printf(m, " [ECC %sabled]",
+ (val2 & PPC7D_CPLD_MB_TYPE_ECC_ENABLE_MASK) ? "en" :
+ "dis");
+ }
+ seq_printf(m, "\n");
+
+ val1 = (val & PPC7D_CPLD_FLASH_DEV_SIZE_MASK);
+ val2 = (val & PPC7D_CPLD_FLASH_BANK_NUM_MASK) >> 2;
+ seq_printf(m, "FLASH\t\t: %d banks of %dM, total %dM\n",
+ flash_banks[val2], flash_sizes[val1],
+ flash_banks[val2] * flash_sizes[val1]);
+
+ val = inb(PPC7D_CPLD_FLASH_WRITE_CNTL);
+ val1 = inb(PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
+ seq_printf(m, " write links\t: %s%s%s%s\n",
+ (val & PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK) ? "WRITE " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK) ? "BOOT " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK) ? "USER " : "",
+ (val & (PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK |
+ PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK |
+ PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK)) ==
+ 0 ? "NONE" : "");
+ seq_printf(m, " write sector h/w enables: %s%s%s%s%s\n",
+ (val & PPD7D_CPLD_FLASH_CNTL_RECO_WR_MASK) ? "RECOVERY " :
+ "",
+ (val & PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK) ? "BOOT " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_USER_WR_MASK) ? "USER " : "",
+ (val1 & PPC7D_CPLD_FLASH_CNTL_NVRAM_PROT_MASK) ? "NVRAM " :
+ "",
+ (((val &
+ (PPD7D_CPLD_FLASH_CNTL_RECO_WR_MASK |
+ PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK |
+ PPD7D_CPLD_FLASH_CNTL_BOOT_WR_MASK)) == 0)
+ && ((val1 & PPC7D_CPLD_FLASH_CNTL_NVRAM_PROT_MASK) ==
+ 0)) ? "NONE" : "");
+ val1 =
+ inb(PPC7D_CPLD_SW_FLASH_WRITE_PROTECT) &
+ (PPC7D_CPLD_SW_FLASH_WRPROT_SYSBOOT_MASK |
+ PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK);
+ seq_printf(m, " software sector enables: %s%s%s\n",
+ (val1 & PPC7D_CPLD_SW_FLASH_WRPROT_SYSBOOT_MASK) ? "SYSBOOT "
+ : "",
+ (val1 & PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK) ? "USER " : "",
+ (val1 == 0) ? "NONE " : "");
+
+ seq_printf(m, "Boot options\t: %s%s%s%s\n",
+ (val & PPC7D_CPLD_FLASH_CNTL_ALTBOOT_LINK_MASK) ?
+ "ALTERNATE " : "",
+ (val & PPC7D_CPLD_FLASH_CNTL_VMEBOOT_LINK_MASK) ? "VME " :
+ "",
+ (val & PPC7D_CPLD_FLASH_CNTL_RECBOOT_LINK_MASK) ? "RECOVERY "
+ : "",
+ ((val &
+ (PPC7D_CPLD_FLASH_CNTL_ALTBOOT_LINK_MASK |
+ PPC7D_CPLD_FLASH_CNTL_VMEBOOT_LINK_MASK |
+ PPC7D_CPLD_FLASH_CNTL_RECBOOT_LINK_MASK)) ==
+ 0) ? "NONE" : "");
+
+ val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_1);
+ seq_printf(m, "Fitted modules\t: %s%s%s%s\n",
+ (val & PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK) ? "" : "PMC1 ",
+ (val & PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK) ? "" : "PMC2 ",
+ (val & PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK) ? "AFIX " : "",
+ ((val & (PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK |
+ PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK |
+ PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK)) ==
+ (PPC7D_CPLD_EQPT_PRES_1_PMC1_MASK |
+ PPC7D_CPLD_EQPT_PRES_1_PMC2_MASK)) ? "NONE" : "");
+
+ if (val & PPC7D_CPLD_EQPT_PRES_1_AFIX_MASK) {
+ static const char *ids[] = {
+ "unknown",
+ "1553 (Dual Channel)",
+ "1553 (Single Channel)",
+ "8-bit SCSI + VGA",
+ "16-bit SCSI + VGA",
+ "1553 (Single Channel with sideband)",
+ "1553 (Dual Channel with sideband)",
+ NULL
+ };
+ u8 id = __raw_readb((void *)PPC7D_AFIX_REG_BASE + 0x03);
+ seq_printf(m, "AFIX module\t: 0x%hx [%s]\n", id,
+ id < 7 ? ids[id] : "unknown");
+ }
+
+ val = inb(PPC7D_CPLD_PCI_CONFIG);
+ val1 = (val & PPC7D_CPLD_PCI_CONFIG_PCI0_MASK) >> 4;
+ val2 = (val & PPC7D_CPLD_PCI_CONFIG_PCI1_MASK);
+ seq_printf(m, "PCI#0\t\t: %s\nPCI#1\t\t: %s\n",
+ pci_modes[val1], pci_modes[val2]);
+
+ val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_2);
+ seq_printf(m, "PMC1\t\t: %s\nPMC2\t\t: %s\n",
+ (val & PPC7D_CPLD_EQPT_PRES_3_PMC1_V_MASK) ? "3.3v" : "5v",
+ (val & PPC7D_CPLD_EQPT_PRES_3_PMC2_V_MASK) ? "3.3v" : "5v");
+ seq_printf(m, "PMC power source: %s\n",
+ (val & PPC7D_CPLD_EQPT_PRES_3_PMC_POWER_MASK) ? "VME" :
+ "internal");
+
+ val = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_4);
+ val2 = inb(PPC7D_CPLD_EQUIPMENT_PRESENT_2);
+ seq_printf(m, "Fit options\t: %s%s%s%s%s%s%s\n",
+ (val & PPC7D_CPLD_EQPT_PRES_4_LPT_MASK) ? "LPT " : "",
+ (val & PPC7D_CPLD_EQPT_PRES_4_PS2_FITTED) ? "PS2 " : "",
+ (val & PPC7D_CPLD_EQPT_PRES_4_USB2_FITTED) ? "USB2 " : "",
+ (val2 & PPC7D_CPLD_EQPT_PRES_2_UNIVERSE_MASK) ? "VME " : "",
+ (val2 & PPC7D_CPLD_EQPT_PRES_2_COM36_MASK) ? "COM3-6 " : "",
+ (val2 & PPC7D_CPLD_EQPT_PRES_2_GIGE_MASK) ? "eth0 " : "",
+ (val2 & PPC7D_CPLD_EQPT_PRES_2_DUALGIGE_MASK) ? "eth1 " :
+ "");
+
+ val = inb(PPC7D_CPLD_ID_LINK);
+ val1 = val & (PPC7D_CPLD_ID_LINK_E6_MASK |
+ PPC7D_CPLD_ID_LINK_E7_MASK |
+ PPC7D_CPLD_ID_LINK_E12_MASK |
+ PPC7D_CPLD_ID_LINK_E13_MASK);
+
+ val = inb(PPC7D_CPLD_FLASH_WRITE_CNTL) &
+ (PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK |
+ PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK |
+ PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK);
+
+ seq_printf(m, "Board links present: %s%s%s%s%s%s%s%s\n",
+ (val1 & PPC7D_CPLD_ID_LINK_E6_MASK) ? "E6 " : "",
+ (val1 & PPC7D_CPLD_ID_LINK_E7_MASK) ? "E7 " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_WR_LINK_MASK) ? "E9 " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_BOOT_LINK_MASK) ? "E10 " : "",
+ (val & PPD7D_CPLD_FLASH_CNTL_USER_LINK_MASK) ? "E11 " : "",
+ (val1 & PPC7D_CPLD_ID_LINK_E12_MASK) ? "E12 " : "",
+ (val1 & PPC7D_CPLD_ID_LINK_E13_MASK) ? "E13 " : "",
+ ((val == 0) && (val1 == 0)) ? "NONE" : "");
+
+ val = inb(PPC7D_CPLD_WDOG_RESETSW_MASK);
+ seq_printf(m, "Front panel reset switch: %sabled\n",
+ (val & PPC7D_CPLD_WDOG_RESETSW_MASK) ? "dis" : "en");
+
+ return 0;
+}
+
+static void __init ppc7d_calibrate_decr(void)
+{
+ ulong freq;
+
+ freq = 100000000 / 4;
+
+ pr_debug("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);
+}
+
+/*****************************************************************************
+ * Interrupt stuff
+ *****************************************************************************/
+
+static irqreturn_t ppc7d_i8259_intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+ u32 temp = mv64x60_read(&bh, MV64x60_GPP_INTR_CAUSE);
+ if (temp & (1 << 28)) {
+ i8259_irq(regs);
+ mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, temp & (~(1 << 28)));
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+
+/*
+ * Each interrupt cause is assigned an IRQ number.
+ * Southbridge has 16*2 (two 8259's) interrupts.
+ * Discovery-II has 96 interrupts (cause-hi, cause-lo, gpp x 32).
+ * If multiple interrupts are pending, get_irq() returns the
+ * lowest pending irq number first.
+ *
+ *
+ * IRQ # Source Trig Active
+ * =============================================================
+ *
+ * Southbridge
+ * -----------
+ * IRQ # Source Trig
+ * =============================================================
+ * 0 ISA High Resolution Counter Edge
+ * 1 Keyboard Edge
+ * 2 Cascade From (IRQ 8-15) Edge
+ * 3 Com 2 (Uart 2) Edge
+ * 4 Com 1 (Uart 1) Edge
+ * 5 PCI Int D/AFIX IRQZ ID4 (2,7) Level
+ * 6 GPIO Level
+ * 7 LPT Edge
+ * 8 RTC Alarm Edge
+ * 9 PCI Int A/PMC 2/AFIX IRQW ID1 (2,0) Level
+ * 10 PCI Int B/PMC 1/AFIX IRQX ID2 (2,1) Level
+ * 11 USB2 Level
+ * 12 Mouse Edge
+ * 13 Reserved internally by Ali M1535+
+ * 14 PCI Int C/VME/AFIX IRQY ID3 (2,6) Level
+ * 15 COM 5/6 Level
+ *
+ * 16..112 Discovery-II...
+ *
+ * MPP28 Southbridge Edge High
+ *
+ *
+ * Interrupts are cascaded through to the Discovery-II.
+ *
+ * PCI ---
+ * \
+ * CPLD --> ALI1535 -------> DISCOVERY-II
+ * INTF MPP28
+ */
+static void __init ppc7d_init_irq(void)
+{
+ int irq;
+
+ pr_debug("%s\n", __FUNCTION__);
+ i8259_init(0);
+ mv64360_init_irq();
+
+ /* IRQ 0..15 are handled by the cascaded 8259's of the Ali1535 */
+ for (irq = 0; irq < 16; irq++) {
+ irq_desc[irq].handler = &i8259_pic;
+ }
+ /* IRQs 5,6,9,10,11,14,15 are level sensitive */
+ irq_desc[5].status |= IRQ_LEVEL;
+ irq_desc[6].status |= IRQ_LEVEL;
+ irq_desc[9].status |= IRQ_LEVEL;
+ irq_desc[10].status |= IRQ_LEVEL;
+ irq_desc[11].status |= IRQ_LEVEL;
+ irq_desc[14].status |= IRQ_LEVEL;
+ irq_desc[15].status |= IRQ_LEVEL;
+
+ /* GPP28 is edge triggered */
+ irq_desc[mv64360_irq_base + MV64x60_IRQ_GPP28].status &= ~IRQ_LEVEL;
+}
+
+static u32 ppc7d_irq_canonicalize(u32 irq)
+{
+ if ((irq >= 16) && (irq < (16 + 96)))
+ irq -= 16;
+
+ return irq;
+}
+
+static int ppc7d_get_irq(struct pt_regs *regs)
+{
+ int irq;
+
+ irq = mv64360_get_irq(regs);
+ if (irq == (mv64360_irq_base + MV64x60_IRQ_GPP28))
+ irq = i8259_irq(regs);
+ return irq;
+}
+
+/*
+ * 9 PCI Int A/PMC 2/AFIX IRQW ID1 (2,0) Level
+ * 10 PCI Int B/PMC 1/AFIX IRQX ID2 (2,1) Level
+ * 14 PCI Int C/VME/AFIX IRQY ID3 (2,6) Level
+ * 5 PCI Int D/AFIX IRQZ ID4 (2,7) Level
+ */
+static int __init ppc7d_map_irq(struct pci_dev *dev, unsigned char idsel,
+ unsigned char pin)
+{
+ static const char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {10, 14, 5, 9}, /* IDSEL 10 - PMC2 / AFIX IRQW */
+ {9, 10, 14, 5}, /* IDSEL 11 - PMC1 / AFIX IRQX */
+ {5, 9, 10, 14}, /* IDSEL 12 - AFIX IRQY */
+ {14, 5, 9, 10}, /* IDSEL 13 - AFIX IRQZ */
+ };
+ const long min_idsel = 10, max_idsel = 14, irqs_per_slot = 4;
+
+ pr_debug("%s: %04x/%04x/%x: idsel=%hx pin=%hu\n", __FUNCTION__,
+ dev->vendor, dev->device, PCI_FUNC(dev->devfn), idsel, pin);
+
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+
+void __init ppc7d_intr_setup(void)
+{
+ u32 data;
+
+ /*
+ * Define GPP 28 interrupt polarity as active high
+ * input signal and level triggered
+ */
+ data = mv64x60_read(&bh, MV64x60_GPP_LEVEL_CNTL);
+ data &= ~(1 << 28);
+ mv64x60_write(&bh, MV64x60_GPP_LEVEL_CNTL, data);
+ data = mv64x60_read(&bh, MV64x60_GPP_IO_CNTL);
+ data &= ~(1 << 28);
+ mv64x60_write(&bh, MV64x60_GPP_IO_CNTL, data);
+
+ /* Config GPP intr ctlr to respond to level trigger */
+ data = mv64x60_read(&bh, MV64x60_COMM_ARBITER_CNTL);
+ data |= (1 << 10);
+ mv64x60_write(&bh, MV64x60_COMM_ARBITER_CNTL, data);
+
+ /* XXXX Erranum FEr PCI-#8 */
+ data = mv64x60_read(&bh, MV64x60_PCI0_CMD);
+ data &= ~((1 << 5) | (1 << 9));
+ mv64x60_write(&bh, MV64x60_PCI0_CMD, data);
+ data = mv64x60_read(&bh, MV64x60_PCI1_CMD);
+ data &= ~((1 << 5) | (1 << 9));
+ mv64x60_write(&bh, MV64x60_PCI1_CMD, data);
+
+ /*
+ * Dismiss and then enable interrupt on GPP interrupt cause
+ * for CPU #0
+ */
+ mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~(1 << 28));
+ data = mv64x60_read(&bh, MV64x60_GPP_INTR_MASK);
+ data |= (1 << 28);
+ mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, data);
+
+ /*
+ * Dismiss and then enable interrupt on CPU #0 high cause reg
+ * BIT27 summarizes GPP interrupts 23-31
+ */
+ mv64x60_write(&bh, MV64360_IC_MAIN_CAUSE_HI, ~(1 << 27));
+ data = mv64x60_read(&bh, MV64360_IC_CPU0_INTR_MASK_HI);
+ data |= (1 << 27);
+ mv64x60_write(&bh, MV64360_IC_CPU0_INTR_MASK_HI, data);
+}
+
+/*****************************************************************************
+ * Platform device data fixup routines.
+ *****************************************************************************/
+
+#if defined(CONFIG_SERIAL_MPSC)
+static void __init ppc7d_fixup_mpsc_pdata(struct platform_device *pdev)
+{
+ struct mpsc_pdata *pdata;
+
+ pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
+
+ pdata->max_idle = 40;
+ pdata->default_baud = PPC7D_DEFAULT_BAUD;
+ pdata->brg_clk_src = PPC7D_MPSC_CLK_SRC;
+ pdata->brg_clk_freq = PPC7D_MPSC_CLK_FREQ;
+
+ return;
+}
+#endif
+
+#if defined(CONFIG_MV643XX_ETH)
+static void __init ppc7d_fixup_eth_pdata(struct platform_device *pdev)
+{
+ struct mv643xx_eth_platform_data *eth_pd;
+ static u16 phy_addr[] = {
+ PPC7D_ETH0_PHY_ADDR,
+ PPC7D_ETH1_PHY_ADDR,
+ PPC7D_ETH2_PHY_ADDR,
+ };
+ int i;
+
+ eth_pd = pdev->dev.platform_data;
+ eth_pd->force_phy_addr = 1;
+ eth_pd->phy_addr = phy_addr[pdev->id];
+ eth_pd->tx_queue_size = PPC7D_ETH_TX_QUEUE_SIZE;
+ eth_pd->rx_queue_size = PPC7D_ETH_RX_QUEUE_SIZE;
+
+ /* Adjust IRQ by mv64360_irq_base */
+ for (i = 0; i < pdev->num_resources; i++) {
+ struct resource *r = &pdev->resource[i];
+
+ if (r->flags & IORESOURCE_IRQ) {
+ r->start += mv64360_irq_base;
+ r->end += mv64360_irq_base;
+ pr_debug("%s, uses IRQ %d\n", pdev->name,
+ (int)r->start);
+ }
+ }
+
+}
+#endif
+
+#if defined(CONFIG_I2C_MV64XXX)
+static void __init
+ppc7d_fixup_i2c_pdata(struct platform_device *pdev)
+{
+ struct mv64xxx_i2c_pdata *pdata;
+ int i;
+
+ pdata = pdev->dev.platform_data;
+ if (pdata == NULL) {
+ pdata = kmalloc(sizeof(*pdata), GFP_KERNEL);
+ if (pdata == NULL)
+ return;
+
+ memset(pdata, 0, sizeof(*pdata));
+ pdev->dev.platform_data = pdata;
+ }
+
+ /* divisors M=8, N=3 for 100kHz I2C from 133MHz system clock */
+ pdata->freq_m = 8;
+ pdata->freq_n = 3;
+ pdata->timeout = 500;
+ pdata->retries = 3;
+
+ /* Adjust IRQ by mv64360_irq_base */
+ for (i = 0; i < pdev->num_resources; i++) {
+ struct resource *r = &pdev->resource[i];
+
+ if (r->flags & IORESOURCE_IRQ) {
+ r->start += mv64360_irq_base;
+ r->end += mv64360_irq_base;
+ pr_debug("%s, uses IRQ %d\n", pdev->name, (int) r->start);
+ }
+ }
+}
+#endif
+
+static int __init ppc7d_platform_notify(struct device *dev)
+{
+ static struct {
+ char *bus_id;
+ void ((*rtn) (struct platform_device * pdev));
+ } dev_map[] = {
+#if defined(CONFIG_SERIAL_MPSC)
+ { MPSC_CTLR_NAME ".0", ppc7d_fixup_mpsc_pdata },
+ { MPSC_CTLR_NAME ".1", ppc7d_fixup_mpsc_pdata },
+#endif
+#if defined(CONFIG_MV643XX_ETH)
+ { MV643XX_ETH_NAME ".0", ppc7d_fixup_eth_pdata },
+ { MV643XX_ETH_NAME ".1", ppc7d_fixup_eth_pdata },
+ { MV643XX_ETH_NAME ".2", ppc7d_fixup_eth_pdata },
+#endif
+#if defined(CONFIG_I2C_MV64XXX)
+ { MV64XXX_I2C_CTLR_NAME ".0", ppc7d_fixup_i2c_pdata },
+#endif
+ };
+ struct platform_device *pdev;
+ int i;
+
+ if (dev && dev->bus_id)
+ for (i = 0; i < ARRAY_SIZE(dev_map); i++)
+ if (!strncmp(dev->bus_id, dev_map[i].bus_id,
+ BUS_ID_SIZE)) {
+
+ pdev = container_of(dev,
+ struct platform_device,
+ dev);
+ dev_map[i].rtn(pdev);
+ }
+
+ return 0;
+}
+
+/*****************************************************************************
+ * PCI device fixups.
+ * These aren't really fixups per se. They are used to init devices as they
+ * are found during PCI scan.
+ *
+ * The PPC7D has an HB8 PCI-X bridge which must be set up during a PCI
+ * scan in order to find other devices on its secondary side.
+ *****************************************************************************/
+
+static void __init ppc7d_fixup_hb8(struct pci_dev *dev)
+{
+ u16 val16;
+
+ if (dev->bus->number == 0) {
+ pr_debug("PCI: HB8 init\n");
+
+ pci_write_config_byte(dev, 0x1c,
+ ((PPC7D_PCI0_IO_START_PCI_ADDR & 0xf000)
+ >> 8) | 0x01);
+ pci_write_config_byte(dev, 0x1d,
+ (((PPC7D_PCI0_IO_START_PCI_ADDR +
+ PPC7D_PCI0_IO_SIZE -
+ 1) & 0xf000) >> 8) | 0x01);
+ pci_write_config_word(dev, 0x30,
+ PPC7D_PCI0_IO_START_PCI_ADDR >> 16);
+ pci_write_config_word(dev, 0x32,
+ ((PPC7D_PCI0_IO_START_PCI_ADDR +
+ PPC7D_PCI0_IO_SIZE -
+ 1) >> 16) & 0xffff);
+
+ pci_write_config_word(dev, 0x20,
+ PPC7D_PCI0_MEM0_START_PCI_LO_ADDR >> 16);
+ pci_write_config_word(dev, 0x22,
+ ((PPC7D_PCI0_MEM0_START_PCI_LO_ADDR +
+ PPC7D_PCI0_MEM0_SIZE -
+ 1) >> 16) & 0xffff);
+ pci_write_config_word(dev, 0x24, 0);
+ pci_write_config_word(dev, 0x26, 0);
+ pci_write_config_dword(dev, 0x28, 0);
+ pci_write_config_dword(dev, 0x2c, 0);
+
+ pci_read_config_word(dev, 0x3e, &val16);
+ val16 |= ((1 << 5) | (1 << 1)); /* signal master aborts and
+ * SERR to primary
+ */
+ val16 &= ~(1 << 2); /* ISA disable, so all ISA
+ * ports forwarded to secondary
+ */
+ pci_write_config_word(dev, 0x3e, val16);
+ }
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0028, ppc7d_fixup_hb8);
+
+/* This should perhaps be a separate driver as we're actually initializing
+ * the chip for this board here. It's hardly a fixup...
+ */
+static void __init ppc7d_fixup_ali1535(struct pci_dev *dev)
+{
+ pr_debug("PCI: ALI1535 init\n");
+
+ if (dev->bus->number == 1) {
+ /* Configure the ISA Port Settings */
+ pci_write_config_byte(dev, 0x43, 0x00);
+
+ /* Disable PCI Interrupt polling mode */
+ pci_write_config_byte(dev, 0x45, 0x00);
+
+ /* Multifunction pin select INTFJ -> INTF */
+ pci_write_config_byte(dev, 0x78, 0x00);
+
+ /* Set PCI INT -> IRQ Routing control in for external
+ * pins south bridge.
+ */
+ pci_write_config_byte(dev, 0x48, 0x31); /* [7-4] INT B -> IRQ10
+ * [3-0] INT A -> IRQ9
+ */
+ pci_write_config_byte(dev, 0x49, 0x5D); /* [7-4] INT D -> IRQ5
+ * [3-0] INT C -> IRQ14
+ */
+
+ /* PPC7D setup */
+ /* NEC USB device on IRQ 11 (INTE) - INTF disabled */
+ pci_write_config_byte(dev, 0x4A, 0x09);
+
+ /* GPIO on IRQ 6 */
+ pci_write_config_byte(dev, 0x76, 0x07);
+
+ /* SIRQ I (COMS 5/6) use IRQ line 15.
+ * Positive (not subtractive) address decode.
+ */
+ pci_write_config_byte(dev, 0x44, 0x0f);
+
+ /* SIRQ II disabled */
+ pci_write_config_byte(dev, 0x75, 0x0);
+
+ /* On board USB and RTC disabled */
+ pci_write_config_word(dev, 0x52, (1 << 14));
+ pci_write_config_byte(dev, 0x74, 0x00);
+
+ /* On board IDE disabled */
+ pci_write_config_byte(dev, 0x58, 0x00);
+
+ /* Decode 32-bit addresses */
+ pci_write_config_byte(dev, 0x5b, 0);
+
+ /* Disable docking IO */
+ pci_write_config_word(dev, 0x5c, 0x0000);
+
+ /* Disable modem, enable sound */
+ pci_write_config_byte(dev, 0x77, (1 << 6));
+
+ /* Disable hot-docking mode */
+ pci_write_config_byte(dev, 0x7d, 0x00);
+ }
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1533, ppc7d_fixup_ali1535);
+
+static int ppc7d_pci_exclude_device(u8 bus, u8 devfn)
+{
+ /* Early versions of this board were fitted with IBM ALMA
+ * PCI-VME bridge chips. The PCI config space of these devices
+ * was not set up correctly and causes PCI scan problems.
+ */
+ if ((bus == 1) && (PCI_SLOT(devfn) == 4) && ppc7d_has_alma)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return mv64x60_pci_exclude_device(bus, devfn);
+}
+
+/* This hook is called when each PCI bus is probed.
+ */
+static void ppc7d_pci_fixup_bus(struct pci_bus *bus)
+{
+ pr_debug("PCI BUS %hu: %lx/%lx %lx/%lx %lx/%lx %lx/%lx\n",
+ bus->number,
+ bus->resource[0] ? bus->resource[0]->start : 0,
+ bus->resource[0] ? bus->resource[0]->end : 0,
+ bus->resource[1] ? bus->resource[1]->start : 0,
+ bus->resource[1] ? bus->resource[1]->end : 0,
+ bus->resource[2] ? bus->resource[2]->start : 0,
+ bus->resource[2] ? bus->resource[2]->end : 0,
+ bus->resource[3] ? bus->resource[3]->start : 0,
+ bus->resource[3] ? bus->resource[3]->end : 0);
+
+ if ((bus->number == 1) && (bus->resource[2] != NULL)) {
+ /* Hide PCI window 2 of Bus 1 which is used only to
+ * map legacy ISA memory space.
+ */
+ bus->resource[2]->start = 0;
+ bus->resource[2]->end = 0;
+ bus->resource[2]->flags = 0;
+ }
+}
+
+/*****************************************************************************
+ * Board device setup code
+ *****************************************************************************/
+
+void __init ppc7d_setup_peripherals(void)
+{
+ u32 val32;
+
+ /* Set up windows for boot CS */
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
+ PPC7D_BOOT_WINDOW_BASE, PPC7D_BOOT_WINDOW_SIZE,
+ 0);
+ bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
+
+ /* Boot firmware configures the following DevCS addresses.
+ * DevCS0 - board control/status
+ * DevCS1 - test registers
+ * DevCS2 - AFIX port/address registers (for identifying)
+ * DevCS3 - FLASH
+ *
+ * We don't use DevCS0, DevCS1.
+ */
+ val32 = mv64x60_read(&bh, MV64360_CPU_BAR_ENABLE);
+ val32 |= ((1 << 4) | (1 << 5));
+ mv64x60_write(&bh, MV64360_CPU_BAR_ENABLE, val32);
+ mv64x60_write(&bh, MV64x60_CPU2DEV_0_BASE, 0);
+ mv64x60_write(&bh, MV64x60_CPU2DEV_0_SIZE, 0);
+ mv64x60_write(&bh, MV64x60_CPU2DEV_1_BASE, 0);
+ mv64x60_write(&bh, MV64x60_CPU2DEV_1_SIZE, 0);
+
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_2_WIN,
+ PPC7D_AFIX_REG_BASE, PPC7D_AFIX_REG_SIZE, 0);
+ bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_2_WIN);
+
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_3_WIN,
+ PPC7D_FLASH_BASE, PPC7D_FLASH_SIZE_ACTUAL, 0);
+ bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_3_WIN);
+
+ mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
+ PPC7D_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE,
+ 0);
+ bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
+
+ /* Set up Enet->SRAM window */
+ mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN,
+ PPC7D_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE,
+ 0x2);
+ bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
+
+ /* Give enet r/w access to memory region */
+ val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_0);
+ val32 |= (0x3 << (4 << 1));
+ mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_0, val32);
+ val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_1);
+ val32 |= (0x3 << (4 << 1));
+ mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_1, val32);
+ val32 = mv64x60_read(&bh, MV64360_ENET2MEM_ACC_PROT_2);
+ val32 |= (0x3 << (4 << 1));
+ mv64x60_write(&bh, MV64360_ENET2MEM_ACC_PROT_2, val32);
+
+ val32 = mv64x60_read(&bh, MV64x60_TIMR_CNTR_0_3_CNTL);
+ val32 &= ~((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24));
+ mv64x60_write(&bh, MV64x60_TIMR_CNTR_0_3_CNTL, val32);
+
+ /* Enumerate pci bus.
+ *
+ * We scan PCI#0 first (the bus with the HB8 and other
+ * on-board peripherals). We must configure the 64360 before
+ * each scan, according to the bus number assignments. Busses
+ * are assigned incrementally, starting at 0. PCI#0 is
+ * usually assigned bus#0, the secondary side of the HB8 gets
+ * bus#1 and PCI#1 (second PMC site) gets bus#2. However, if
+ * any PMC card has a PCI bridge, these bus assignments will
+ * change.
+ */
+
+ /* Turn off PCI retries */
+ val32 = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
+ val32 |= (1 << 17);
+ mv64x60_write(&bh, MV64x60_CPU_CONFIG, val32);
+
+ /* Scan PCI#0 */
+ mv64x60_set_bus(&bh, 0, 0);
+ bh.hose_a->first_busno = 0;
+ bh.hose_a->last_busno = 0xff;
+ bh.hose_a->last_busno = pciauto_bus_scan(bh.hose_a, 0);
+ printk(KERN_INFO "PCI#0: first=%d last=%d\n",
+ bh.hose_a->first_busno, bh.hose_a->last_busno);
+
+ /* Scan PCI#1 */
+ bh.hose_b->first_busno = bh.hose_a->last_busno + 1;
+ mv64x60_set_bus(&bh, 1, bh.hose_b->first_busno);
+ bh.hose_b->last_busno = 0xff;
+ bh.hose_b->last_busno = pciauto_bus_scan(bh.hose_b,
+ bh.hose_b->first_busno);
+ printk(KERN_INFO "PCI#1: first=%d last=%d\n",
+ bh.hose_b->first_busno, bh.hose_b->last_busno);
+
+ /* Turn on PCI retries */
+ val32 = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
+ val32 &= ~(1 << 17);
+ mv64x60_write(&bh, MV64x60_CPU_CONFIG, val32);
+
+ /* Setup interrupts */
+ ppc7d_intr_setup();
+}
+
+static void __init ppc7d_setup_bridge(void)
+{
+ struct mv64x60_setup_info si;
+ int i;
+ u32 temp;
+
+ mv64360_irq_base = 16; /* first 16 intrs are 2 x 8259's */
+
+ memset(&si, 0, sizeof(si));
+
+ si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
+
+ si.pci_0.enable_bus = 1;
+ si.pci_0.pci_io.cpu_base = PPC7D_PCI0_IO_START_PROC_ADDR;
+ si.pci_0.pci_io.pci_base_hi = 0;
+ si.pci_0.pci_io.pci_base_lo = PPC7D_PCI0_IO_START_PCI_ADDR;
+ si.pci_0.pci_io.size = PPC7D_PCI0_IO_SIZE;
+ si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_0.pci_mem[0].cpu_base = PPC7D_PCI0_MEM0_START_PROC_ADDR;
+ si.pci_0.pci_mem[0].pci_base_hi = PPC7D_PCI0_MEM0_START_PCI_HI_ADDR;
+ si.pci_0.pci_mem[0].pci_base_lo = PPC7D_PCI0_MEM0_START_PCI_LO_ADDR;
+ si.pci_0.pci_mem[0].size = PPC7D_PCI0_MEM0_SIZE;
+ si.pci_0.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_0.pci_mem[1].cpu_base = PPC7D_PCI0_MEM1_START_PROC_ADDR;
+ si.pci_0.pci_mem[1].pci_base_hi = PPC7D_PCI0_MEM1_START_PCI_HI_ADDR;
+ si.pci_0.pci_mem[1].pci_base_lo = PPC7D_PCI0_MEM1_START_PCI_LO_ADDR;
+ si.pci_0.pci_mem[1].size = PPC7D_PCI0_MEM1_SIZE;
+ si.pci_0.pci_mem[1].swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_0.pci_cmd_bits = 0;
+ si.pci_0.latency_timer = 0x80;
+
+ si.pci_1.enable_bus = 1;
+ si.pci_1.pci_io.cpu_base = PPC7D_PCI1_IO_START_PROC_ADDR;
+ si.pci_1.pci_io.pci_base_hi = 0;
+ si.pci_1.pci_io.pci_base_lo = PPC7D_PCI1_IO_START_PCI_ADDR;
+ si.pci_1.pci_io.size = PPC7D_PCI1_IO_SIZE;
+ si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_1.pci_mem[0].cpu_base = PPC7D_PCI1_MEM0_START_PROC_ADDR;
+ si.pci_1.pci_mem[0].pci_base_hi = PPC7D_PCI1_MEM0_START_PCI_HI_ADDR;
+ si.pci_1.pci_mem[0].pci_base_lo = PPC7D_PCI1_MEM0_START_PCI_LO_ADDR;
+ si.pci_1.pci_mem[0].size = PPC7D_PCI1_MEM0_SIZE;
+ si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_1.pci_mem[1].cpu_base = PPC7D_PCI1_MEM1_START_PROC_ADDR;
+ si.pci_1.pci_mem[1].pci_base_hi = PPC7D_PCI1_MEM1_START_PCI_HI_ADDR;
+ si.pci_1.pci_mem[1].pci_base_lo = PPC7D_PCI1_MEM1_START_PCI_LO_ADDR;
+ si.pci_1.pci_mem[1].size = PPC7D_PCI1_MEM1_SIZE;
+ si.pci_1.pci_mem[1].swap = MV64x60_CPU2PCI_SWAP_NONE;
+ si.pci_1.pci_cmd_bits = 0;
+ si.pci_1.latency_timer = 0x80;
+
+ /* Don't clear the SRAM window since we use it for debug */
+ si.window_preserve_mask_32_lo = (1 << MV64x60_CPU2SRAM_WIN);
+
+ printk(KERN_INFO "PCI: MV64360 PCI#0 IO at %x, size %x\n",
+ si.pci_0.pci_io.cpu_base, si.pci_0.pci_io.size);
+ printk(KERN_INFO "PCI: MV64360 PCI#1 IO at %x, size %x\n",
+ si.pci_1.pci_io.cpu_base, si.pci_1.pci_io.size);
+
+ for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) {
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+ si.cpu_prot_options[i] = 0;
+ si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE;
+ si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE;
+ si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE;
+
+ si.pci_0.acc_cntl_options[i] =
+ MV64360_PCI_ACC_CNTL_SNOOP_NONE |
+ MV64360_PCI_ACC_CNTL_SWAP_NONE |
+ MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
+ MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
+
+ si.pci_1.acc_cntl_options[i] =
+ MV64360_PCI_ACC_CNTL_SNOOP_NONE |
+ MV64360_PCI_ACC_CNTL_SWAP_NONE |
+ MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
+ MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
+#else
+ si.cpu_prot_options[i] = 0;
+ /* All PPC7D hardware uses B0 or newer MV64360 silicon which
+ * does not have snoop bugs.
+ */
+ si.enet_options[i] = MV64360_ENET2MEM_SNOOP_WB;
+ si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_WB;
+ si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_WB;
+
+ si.pci_0.acc_cntl_options[i] =
+ MV64360_PCI_ACC_CNTL_SNOOP_WB |
+ MV64360_PCI_ACC_CNTL_SWAP_NONE |
+ MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
+ MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
+
+ si.pci_1.acc_cntl_options[i] =
+ MV64360_PCI_ACC_CNTL_SNOOP_WB |
+ MV64360_PCI_ACC_CNTL_SWAP_NONE |
+ MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
+ MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
+#endif
+ }
+
+ /* Lookup PCI host bridges */
+ if (mv64x60_init(&bh, &si))
+ printk(KERN_ERR "MV64360 initialization failed.\n");
+
+ pr_debug("MV64360 regs @ %lx/%p\n", bh.p_base, bh.v_base);
+
+ /* Enable WB Cache coherency on SRAM */
+ temp = mv64x60_read(&bh, MV64360_SRAM_CONFIG);
+ pr_debug("SRAM_CONFIG: %x\n", temp);
+#if defined(CONFIG_NOT_COHERENT_CACHE)
+ mv64x60_write(&bh, MV64360_SRAM_CONFIG, temp & ~0x2);
+#else
+ mv64x60_write(&bh, MV64360_SRAM_CONFIG, temp | 0x2);
+#endif
+ /* If system operates with internal bus arbiter (CPU master
+ * control bit8) clear AACK Delay bit [25] in CPU
+ * configuration register.
+ */
+ temp = mv64x60_read(&bh, MV64x60_CPU_MASTER_CNTL);
+ if (temp & (1 << 8)) {
+ temp = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
+ mv64x60_write(&bh, MV64x60_CPU_CONFIG, (temp & ~(1 << 25)));
+ }
+
+ /* Data and address parity is enabled */
+ temp = mv64x60_read(&bh, MV64x60_CPU_CONFIG);
+ mv64x60_write(&bh, MV64x60_CPU_CONFIG,
+ (temp | (1 << 26) | (1 << 19)));
+
+ pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = ppc7d_map_irq;
+ ppc_md.pci_exclude_device = ppc7d_pci_exclude_device;
+
+ mv64x60_set_bus(&bh, 0, 0);
+ bh.hose_a->first_busno = 0;
+ bh.hose_a->last_busno = 0xff;
+ bh.hose_a->mem_space.start = PPC7D_PCI0_MEM0_START_PCI_LO_ADDR;
+ bh.hose_a->mem_space.end =
+ PPC7D_PCI0_MEM0_START_PCI_LO_ADDR + PPC7D_PCI0_MEM0_SIZE;
+
+ /* These will be set later, as a result of PCI0 scan */
+ bh.hose_b->first_busno = 0;
+ bh.hose_b->last_busno = 0xff;
+ bh.hose_b->mem_space.start = PPC7D_PCI1_MEM0_START_PCI_LO_ADDR;
+ bh.hose_b->mem_space.end =
+ PPC7D_PCI1_MEM0_START_PCI_LO_ADDR + PPC7D_PCI1_MEM0_SIZE;
+
+ pr_debug("MV64360: PCI#0 IO decode %08x/%08x IO remap %08x\n",
+ mv64x60_read(&bh, 0x48), mv64x60_read(&bh, 0x50),
+ mv64x60_read(&bh, 0xf0));
+}
+
+static void __init ppc7d_setup_arch(void)
+{
+ int port;
+
+ loops_per_jiffy = 100000000 / HZ;
+
+#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_HDA1;
+#endif
+
+ if ((cur_cpu_spec[0]->cpu_features & CPU_FTR_SPEC7450) ||
+ (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR))
+ /* 745x is different. We only want to pass along enable. */
+ _set_L2CR(L2CR_L2E);
+ else if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L2CR)
+ /* All modules have 1MB of L2. We also assume that an
+ * L2 divisor of 3 will work.
+ */
+ _set_L2CR(L2CR_L2E | L2CR_L2SIZ_1MB | L2CR_L2CLK_DIV3
+ | L2CR_L2RAM_PIPE | L2CR_L2OH_1_0 | L2CR_L2DF);
+
+ if (cur_cpu_spec[0]->cpu_features & CPU_FTR_L3CR)
+ /* No L3 cache */
+ _set_L3CR(0);
+
+#ifdef CONFIG_DUMMY_CONSOLE
+ conswitchp = &dummy_con;
+#endif
+
+ /* Lookup PCI host bridges */
+ if (ppc_md.progress)
+ ppc_md.progress("ppc7d_setup_arch: calling setup_bridge", 0);
+
+ ppc7d_setup_bridge();
+ ppc7d_setup_peripherals();
+
+ /* Disable ethernet. It might have been setup by the bootrom */
+ for (port = 0; port < 3; port++)
+ mv64x60_write(&bh, MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(port),
+ 0x0000ff00);
+
+ /* Clear queue pointers to ensure they are all initialized,
+ * otherwise since queues 1-7 are unused, they have random
+ * pointers which look strange in register dumps. Don't bother
+ * with queue 0 since it will be initialized later.
+ */
+ for (port = 0; port < 3; port++) {
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_1(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_2(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_3(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_4(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_5(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_6(port),
+ 0x00000000);
+ mv64x60_write(&bh,
+ MV643XX_ETH_RX_CURRENT_QUEUE_DESC_PTR_7(port),
+ 0x00000000);
+ }
+
+ printk(KERN_INFO "Radstone Technology PPC7D\n");
+ if (ppc_md.progress)
+ ppc_md.progress("ppc7d_setup_arch: exit", 0);
+
+}
+
+/* Real Time Clock support.
+ * PPC7D has a DS1337 accessed by I2C.
+ */
+static ulong ppc7d_get_rtc_time(void)
+{
+ struct rtc_time tm;
+ int result;
+
+ spin_lock(&rtc_lock);
+ result = ds1337_do_command(0, DS1337_GET_DATE, &tm);
+ spin_unlock(&rtc_lock);
+
+ if (result == 0)
+ result = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+ return result;
+}
+
+static int ppc7d_set_rtc_time(unsigned long nowtime)
+{
+ struct rtc_time tm;
+ int result;
+
+ spin_lock(&rtc_lock);
+ to_tm(nowtime, &tm);
+ result = ds1337_do_command(0, DS1337_SET_DATE, &tm);
+ spin_unlock(&rtc_lock);
+
+ return result;
+}
+
+/* This kernel command line parameter can be used to have the target
+ * wait for a JTAG debugger to attach. Of course, a JTAG debugger
+ * with hardware breakpoint support can have the target stop at any
+ * location during init, but this is a convenience feature that makes
+ * it easier in the common case of loading the code using the ppcboot
+ * bootloader..
+ */
+static unsigned long ppc7d_wait_debugger;
+
+static int __init ppc7d_waitdbg(char *str)
+{
+ ppc7d_wait_debugger = 1;
+ return 1;
+}
+
+__setup("waitdbg", ppc7d_waitdbg);
+
+/* Second phase board init, called after other (architecture common)
+ * low-level services have been initialized.
+ */
+static void ppc7d_init2(void)
+{
+ unsigned long flags;
+ u32 data;
+ u8 data8;
+
+ pr_debug("%s: enter\n", __FUNCTION__);
+
+ /* Wait for debugger? */
+ if (ppc7d_wait_debugger) {
+ printk("Waiting for debugger...\n");
+
+ while (readl(&ppc7d_wait_debugger)) ;
+ }
+
+ /* Hook up i8259 interrupt which is connected to GPP28 */
+ request_irq(mv64360_irq_base + MV64x60_IRQ_GPP28, ppc7d_i8259_intr,
+ SA_INTERRUPT, "I8259 (GPP28) interrupt", (void *)0);
+
+ /* Configure MPP16 as watchdog NMI, MPP17 as watchdog WDE */
+ spin_lock_irqsave(&mv64x60_lock, flags);
+ data = mv64x60_read(&bh, MV64x60_MPP_CNTL_2);
+ data &= ~(0x0000000f << 0);
+ data |= (0x00000004 << 0);
+ data &= ~(0x0000000f << 4);
+ data |= (0x00000004 << 4);
+ mv64x60_write(&bh, MV64x60_MPP_CNTL_2, data);
+ spin_unlock_irqrestore(&mv64x60_lock, flags);
+
+ /* All LEDs off */
+ data8 = inb(PPC7D_CPLD_LEDS);
+ data8 &= ~0x08;
+ data8 |= 0x07;
+ outb(data8, PPC7D_CPLD_LEDS);
+
+ /* Hook up RTC. We couldn't do this earlier because we need the I2C subsystem */
+ ppc_md.set_rtc_time = ppc7d_set_rtc_time;
+ ppc_md.get_rtc_time = ppc7d_get_rtc_time;
+
+ pr_debug("%s: exit\n", __FUNCTION__);
+}
+
+/* Called from machine_init(), early, before any of the __init functions
+ * have run. We must init software-configurable pins before other functions
+ * such as interrupt controllers are initialised.
+ */
+void __init platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ u8 val8;
+ u8 rev_num;
+
+ /* Map 0xe0000000-0xffffffff early because we need access to SRAM
+ * and the ISA memory space (for serial port) here. This mapping
+ * is redone properly in ppc7d_map_io() later.
+ */
+ mtspr(SPRN_DBAT3U, 0xe0003fff);
+ mtspr(SPRN_DBAT3L, 0xe000002a);
+
+ /*
+ * Zero SRAM. Note that this generates parity errors on
+ * internal data path in SRAM if it's first time accessing it
+ * after reset.
+ *
+ * We do this ASAP to avoid parity errors when reading
+ * uninitialized SRAM.
+ */
+ memset((void *)PPC7D_INTERNAL_SRAM_BASE, 0, MV64360_SRAM_SIZE);
+
+ pr_debug("platform_init: r3-r7: %lx %lx %lx %lx %lx\n",
+ r3, r4, r5, r6, r7);
+
+ parse_bootinfo(find_bootinfo());
+
+ /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
+ * are non-zero, then we should use the board info from the bd_t
+ * structure and the cmdline pointed to by r6 instead of the
+ * information from birecs, if any. Otherwise, use the information
+ * from birecs as discovered by the preceeding call to
+ * parse_bootinfo(). This rule should work with both PPCBoot, which
+ * uses a bd_t board info structure, and the kernel boot wrapper,
+ * which uses birecs.
+ */
+ if (r3 && r6) {
+ bd_t *bp = (bd_t *) __res;
+
+ /* copy board info structure */
+ memcpy((void *)__res, (void *)(r3 + KERNELBASE), sizeof(bd_t));
+ /* copy command line */
+ *(char *)(r7 + KERNELBASE) = 0;
+ strcpy(cmd_line, (char *)(r6 + KERNELBASE));
+
+ printk(KERN_INFO "Board info data:-\n");
+ printk(KERN_INFO " Internal freq: %lu MHz, bus freq: %lu MHz\n",
+ bp->bi_intfreq, bp->bi_busfreq);
+ printk(KERN_INFO " Memory: %lx, size %lx\n", bp->bi_memstart,
+ bp->bi_memsize);
+ printk(KERN_INFO " Console baudrate: %lu\n", bp->bi_baudrate);
+ printk(KERN_INFO " Ethernet address: "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ bp->bi_enetaddr[0], bp->bi_enetaddr[1],
+ bp->bi_enetaddr[2], bp->bi_enetaddr[3],
+ bp->bi_enetaddr[4], bp->bi_enetaddr[5]);
+ }
+#ifdef CONFIG_BLK_DEV_INITRD
+ /* take care of initrd if we have one */
+ if (r4) {
+ initrd_start = r4 + KERNELBASE;
+ initrd_end = r5 + KERNELBASE;
+ printk(KERN_INFO "INITRD @ %lx/%lx\n", initrd_start, initrd_end);
+ }
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+ /* Map in board regs, etc. */
+ isa_io_base = 0xe8000000;
+ isa_mem_base = 0xe8000000;
+ pci_dram_offset = 0x00000000;
+ ISA_DMA_THRESHOLD = 0x00ffffff;
+ DMA_MODE_READ = 0x44;
+ DMA_MODE_WRITE = 0x48;
+
+ ppc_md.setup_arch = ppc7d_setup_arch;
+ ppc_md.init = ppc7d_init2;
+ ppc_md.show_cpuinfo = ppc7d_show_cpuinfo;
+ ppc_md.irq_canonicalize = ppc7d_irq_canonicalize;
+ ppc_md.init_IRQ = ppc7d_init_irq;
+ ppc_md.get_irq = ppc7d_get_irq;
+
+ ppc_md.restart = ppc7d_restart;
+ ppc_md.power_off = ppc7d_power_off;
+ ppc_md.halt = ppc7d_halt;
+
+ ppc_md.find_end_of_memory = ppc7d_find_end_of_memory;
+ ppc_md.setup_io_mappings = ppc7d_map_io;
+
+ ppc_md.time_init = NULL;
+ ppc_md.set_rtc_time = NULL;
+ ppc_md.get_rtc_time = NULL;
+ ppc_md.calibrate_decr = ppc7d_calibrate_decr;
+ ppc_md.nvram_read_val = NULL;
+ ppc_md.nvram_write_val = NULL;
+
+ ppc_md.heartbeat = ppc7d_heartbeat;
+ ppc_md.heartbeat_reset = HZ;
+ ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
+
+ ppc_md.pcibios_fixup_bus = ppc7d_pci_fixup_bus;
+
+#if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH) || \
+ defined(CONFIG_I2C_MV64XXX)
+ platform_notify = ppc7d_platform_notify;
+#endif
+
+#ifdef CONFIG_SERIAL_MPSC
+ /* On PPC7D, we must configure MPSC support via CPLD control
+ * registers.
+ */
+ outb(PPC7D_CPLD_RTS_COM4_SCLK |
+ PPC7D_CPLD_RTS_COM56_ENABLED, PPC7D_CPLD_RTS);
+ outb(PPC7D_CPLD_COMS_COM3_TCLKEN |
+ PPC7D_CPLD_COMS_COM3_TXEN |
+ PPC7D_CPLD_COMS_COM4_TCLKEN |
+ PPC7D_CPLD_COMS_COM4_TXEN, PPC7D_CPLD_COMS);
+#endif /* CONFIG_SERIAL_MPSC */
+
+#if defined(CONFIG_KGDB) || defined(CONFIG_SERIAL_TEXT_DEBUG)
+ ppc7d_early_serial_map();
+#ifdef CONFIG_SERIAL_TEXT_DEBUG
+#if defined(CONFIG_SERIAL_MPSC_CONSOLE)
+ ppc_md.progress = mv64x60_mpsc_progress;
+#elif defined(CONFIG_SERIAL_8250)
+ ppc_md.progress = gen550_progress;
+#else
+#error CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG has no supported CONFIG_SERIAL_XXX
+#endif /* CONFIG_SERIAL_8250 */
+#endif /* CONFIG_SERIAL_TEXT_DEBUG */
+#endif /* CONFIG_KGDB || CONFIG_SERIAL_TEXT_DEBUG */
+
+ /* Enable write access to user flash. This is necessary for
+ * flash probe.
+ */
+ val8 = readb((void *)isa_io_base + PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
+ writeb(val8 | (PPC7D_CPLD_SW_FLASH_WRPROT_ENABLED &
+ PPC7D_CPLD_SW_FLASH_WRPROT_USER_MASK),
+ (void *)isa_io_base + PPC7D_CPLD_SW_FLASH_WRITE_PROTECT);
+
+ /* Determine if this board has IBM ALMA VME devices */
+ val8 = readb((void *)isa_io_base + PPC7D_CPLD_BOARD_REVISION);
+ rev_num = (val8 & PPC7D_CPLD_BOARD_REVISION_NUMBER_MASK) >> 5;
+ if (rev_num <= 1)
+ ppc7d_has_alma = 1;
+
+#ifdef DEBUG
+ console_printk[0] = 8;
+#endif
+}
git://git.onelab.eu / linux-2.6.git / blobdiff