diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/platforms/radstone_ppc7d.c | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ppc/platforms/radstone_ppc7d.c')
-rw-r--r-- | arch/ppc/platforms/radstone_ppc7d.c | 1452 |
1 files changed, 1452 insertions, 0 deletions
diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c new file mode 100644 index 0000000..2a99b43 --- /dev/null +++ b/arch/ppc/platforms/radstone_ppc7d.c @@ -0,0 +1,1452 @@ +/* + * 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; + +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 *); + +/* 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 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_EXTEND); + val1 = val & PPC7D_CPLD_SDRAM_BANK_SIZE_MASK; + seq_printf(m, "SDRAM\t\t: %d%c", + (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_128M) ? 128 : + (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_256M) ? 256 : + (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_512M) ? 512 : 1, + (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_1G) ? '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); +} + +/* 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); + + 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 +} |