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-rw-r--r--arch/ppc/platforms/hdpu.c1015
1 files changed, 0 insertions, 1015 deletions
diff --git a/arch/ppc/platforms/hdpu.c b/arch/ppc/platforms/hdpu.c
deleted file mode 100644
index 904b518c152e..000000000000
--- a/arch/ppc/platforms/hdpu.c
+++ /dev/null
@@ -1,1015 +0,0 @@
-/*
- * Board setup routines for the Sky Computers HDPU Compute Blade.
- *
- * Written by Brian Waite <waite@skycomputers.com>
- *
- * Based on code done by - Mark A. Greer <mgreer@mvista.com>
- * Rabeeh Khoury - rabeeh@galileo.co.il
- *
- * 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.
- */
-
-
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/platform_device.h>
-
-#include <linux/initrd.h>
-#include <linux/root_dev.h>
-#include <linux/smp.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/todc.h>
-#include <asm/mv64x60.h>
-#include <asm/ppcboot.h>
-#include <platforms/hdpu.h>
-#include <linux/mv643xx.h>
-#include <linux/hdpu_features.h>
-#include <linux/device.h>
-#include <linux/mtd/physmap.h>
-
-#define BOARD_VENDOR "Sky Computers"
-#define BOARD_MACHINE "HDPU-CB-A"
-
-bd_t ppcboot_bd;
-int ppcboot_bd_valid = 0;
-
-static mv64x60_handle_t bh;
-
-extern char cmd_line[];
-
-unsigned long hdpu_find_end_of_memory(void);
-void hdpu_mpsc_progress(char *s, unsigned short hex);
-void hdpu_heartbeat(void);
-
-static void parse_bootinfo(unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7);
-static void hdpu_set_l1pe(void);
-static void hdpu_cpustate_set(unsigned char new_state);
-#ifdef CONFIG_SMP
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned int timebase_upper = 0, timebase_lower = 0;
-extern int smp_tb_synchronized;
-
-void __devinit hdpu_tben_give(void);
-void __devinit hdpu_tben_take(void);
-#endif
-
-static int __init
-hdpu_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
- struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
-
- if (hose->index == 0) {
- static char pci_irq_table[][4] = {
- {HDPU_PCI_0_IRQ, 0, 0, 0},
- {HDPU_PCI_0_IRQ, 0, 0, 0},
- };
-
- const long min_idsel = 1, max_idsel = 2, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
- } else {
- static char pci_irq_table[][4] = {
- {HDPU_PCI_1_IRQ, 0, 0, 0},
- };
-
- const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
- }
-}
-
-static void __init hdpu_intr_setup(void)
-{
- mv64x60_write(&bh, MV64x60_GPP_IO_CNTL,
- (1 | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) |
- (1 << 6) | (1 << 7) | (1 << 12) | (1 << 16) |
- (1 << 18) | (1 << 19) | (1 << 20) | (1 << 21) |
- (1 << 22) | (1 << 23) | (1 << 24) | (1 << 25) |
- (1 << 26) | (1 << 27) | (1 << 28) | (1 << 29)));
-
- /* XXXX Erranum FEr PCI-#8 */
- mv64x60_clr_bits(&bh, MV64x60_PCI0_CMD, (1 << 5) | (1 << 9));
- mv64x60_clr_bits(&bh, MV64x60_PCI1_CMD, (1 << 5) | (1 << 9));
-
- /*
- * Dismiss and then enable interrupt on GPP interrupt cause
- * for CPU #0
- */
- mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~((1 << 8) | (1 << 13)));
- mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, (1 << 8) | (1 << 13));
-
- /*
- * Dismiss and then enable interrupt on CPU #0 high cause reg
- * BIT25 summarizes GPP interrupts 8-15
- */
- mv64x60_set_bits(&bh, MV64360_IC_CPU0_INTR_MASK_HI, (1 << 25));
-}
-
-static void __init hdpu_setup_peripherals(void)
-{
- unsigned int val;
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
- HDPU_EMB_FLASH_BASE, HDPU_EMB_FLASH_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_0_WIN,
- HDPU_TBEN_BASE, HDPU_TBEN_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_0_WIN);
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN,
- HDPU_NEXUS_ID_BASE, HDPU_NEXUS_ID_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
- HDPU_INTERNAL_SRAM_BASE,
- HDPU_INTERNAL_SRAM_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
-
- bh.ci->disable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
- mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN, 0, 0, 0);
-
- mv64x60_clr_bits(&bh, MV64x60_PCI0_PCI_DECODE_CNTL, (1 << 3));
- mv64x60_clr_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL, (1 << 3));
- mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
- ((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24)));
-
- /* Enable pipelining */
- mv64x60_set_bits(&bh, MV64x60_CPU_CONFIG, (1 << 13));
- /* Enable Snoop Pipelining */
- mv64x60_set_bits(&bh, MV64360_D_UNIT_CONTROL_HIGH, (1 << 24));
-
- /*
- * Change DRAM read buffer assignment.
- * Assign read buffer 0 dedicated only for CPU,
- * and the rest read buffer 1.
- */
- val = mv64x60_read(&bh, MV64360_SDRAM_CONFIG);
- val = val & 0x03ffffff;
- val = val | 0xf8000000;
- mv64x60_write(&bh, MV64360_SDRAM_CONFIG, val);
-
- /*
- * Configure internal SRAM -
- * Cache coherent write back, if CONFIG_MV64360_SRAM_CACHE_COHERENT set
- * Parity enabled.
- * Parity error propagation
- * Arbitration not parked for CPU only
- * Other bits are reserved.
- */
-#ifdef CONFIG_MV64360_SRAM_CACHE_COHERENT
- mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b2);
-#else
- mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b0);
-#endif
-
- hdpu_intr_setup();
-}
-
-static void __init hdpu_setup_bridge(void)
-{
- struct mv64x60_setup_info si;
- int i;
-
- memset(&si, 0, sizeof(si));
-
- si.phys_reg_base = HDPU_BRIDGE_REG_BASE;
- si.pci_0.enable_bus = 1;
- si.pci_0.pci_io.cpu_base = HDPU_PCI0_IO_START_PROC_ADDR;
- si.pci_0.pci_io.pci_base_hi = 0;
- si.pci_0.pci_io.pci_base_lo = HDPU_PCI0_IO_START_PCI_ADDR;
- si.pci_0.pci_io.size = HDPU_PCI0_IO_SIZE;
- si.pci_0.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
- si.pci_0.pci_mem[0].cpu_base = HDPU_PCI0_MEM_START_PROC_ADDR;
- si.pci_0.pci_mem[0].pci_base_hi = HDPU_PCI0_MEM_START_PCI_HI_ADDR;
- si.pci_0.pci_mem[0].pci_base_lo = HDPU_PCI0_MEM_START_PCI_LO_ADDR;
- si.pci_0.pci_mem[0].size = HDPU_PCI0_MEM_SIZE;
- si.pci_0.pci_mem[0].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 = HDPU_PCI1_IO_START_PROC_ADDR;
- si.pci_1.pci_io.pci_base_hi = 0;
- si.pci_1.pci_io.pci_base_lo = HDPU_PCI1_IO_START_PCI_ADDR;
- si.pci_1.pci_io.size = HDPU_PCI1_IO_SIZE;
- si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
- si.pci_1.pci_mem[0].cpu_base = HDPU_PCI1_MEM_START_PROC_ADDR;
- si.pci_1.pci_mem[0].pci_base_hi = HDPU_PCI1_MEM_START_PCI_HI_ADDR;
- si.pci_1.pci_mem[0].pci_base_lo = HDPU_PCI1_MEM_START_PCI_LO_ADDR;
- si.pci_1.pci_mem[0].size = HDPU_PCI1_MEM_SIZE;
- si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
- si.pci_1.pci_cmd_bits = 0;
- si.pci_1.latency_timer = 0x80;
-
- 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_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;
-
- 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;
-
-#else
- si.cpu_prot_options[i] = 0;
- si.enet_options[i] = MV64360_ENET2MEM_SNOOP_WB; /* errata */
- si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_WB; /* errata */
- si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_WB; /* errata */
-
- 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_256_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_256_BYTES;
-#endif
- }
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_INIT_PCI);
-
- /* Lookup PCI host bridges */
- mv64x60_init(&bh, &si);
- pci_dram_offset = 0; /* System mem at same addr on PCI & cpu bus */
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = hdpu_map_irq;
-
- 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);
-
- 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);
-
- ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_INIT_REG);
- /*
- * Enabling of PCI internal-vs-external arbitration
- * is a platform- and errata-dependent decision.
- */
- return;
-}
-
-#if defined(CONFIG_SERIAL_MPSC_CONSOLE)
-static void __init hdpu_early_serial_map(void)
-{
-#ifdef CONFIG_KGDB
- static char first_time = 1;
-
-#if defined(CONFIG_KGDB_TTYS0)
-#define KGDB_PORT 0
-#elif defined(CONFIG_KGDB_TTYS1)
-#define KGDB_PORT 1
-#else
-#error "Invalid kgdb_tty port"
-#endif
-
- if (first_time) {
- gt_early_mpsc_init(KGDB_PORT,
- B9600 | CS8 | CREAD | HUPCL | CLOCAL);
- first_time = 0;
- }
-
- return;
-#endif
-}
-#endif
-
-static void hdpu_init2(void)
-{
- return;
-}
-
-#if defined(CONFIG_MV643XX_ETH)
-static void __init hdpu_fixup_eth_pdata(struct platform_device *pd)
-{
-
- struct mv643xx_eth_platform_data *eth_pd;
- eth_pd = pd->dev.platform_data;
-
- eth_pd->force_phy_addr = 1;
- eth_pd->phy_addr = pd->id;
- eth_pd->speed = SPEED_100;
- eth_pd->duplex = DUPLEX_FULL;
- eth_pd->tx_queue_size = 400;
- eth_pd->rx_queue_size = 800;
-}
-#endif
-
-static void __init hdpu_fixup_mpsc_pdata(struct platform_device *pd)
-{
-
- struct mpsc_pdata *pdata;
-
- pdata = (struct mpsc_pdata *)pd->dev.platform_data;
-
- pdata->max_idle = 40;
- if (ppcboot_bd_valid)
- pdata->default_baud = ppcboot_bd.bi_baudrate;
- else
- pdata->default_baud = HDPU_DEFAULT_BAUD;
- pdata->brg_clk_src = HDPU_MPSC_CLK_SRC;
- pdata->brg_clk_freq = HDPU_MPSC_CLK_FREQ;
-}
-
-#if defined(CONFIG_HDPU_FEATURES)
-static void __init hdpu_fixup_cpustate_pdata(struct platform_device *pd)
-{
- struct platform_device *pds[1];
- pds[0] = pd;
- mv64x60_pd_fixup(&bh, pds, 1);
-}
-#endif
-
-static int hdpu_platform_notify(struct device *dev)
-{
- static struct {
- char *bus_id;
- void ((*rtn) (struct platform_device * pdev));
- } dev_map[] = {
- {
- MPSC_CTLR_NAME ".0", hdpu_fixup_mpsc_pdata},
-#if defined(CONFIG_MV643XX_ETH)
- {
- MV643XX_ETH_NAME ".0", hdpu_fixup_eth_pdata},
-#endif
-#if defined(CONFIG_HDPU_FEATURES)
- {
- HDPU_CPUSTATE_NAME ".0", hdpu_fixup_cpustate_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;
-}
-
-static void __init hdpu_setup_arch(void)
-{
- if (ppc_md.progress)
- ppc_md.progress("hdpu_setup_arch: enter", 0);
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_SDA2;
-#endif
-
- ppc_md.heartbeat = hdpu_heartbeat;
-
- ppc_md.heartbeat_reset = HZ;
- ppc_md.heartbeat_count = 1;
-
- if (ppc_md.progress)
- ppc_md.progress("hdpu_setup_arch: Enabling L2 cache", 0);
-
- /* Enable L1 Parity Bits */
- hdpu_set_l1pe();
-
- /* Enable L2 and L3 caches (if 745x) */
- _set_L2CR(0x80080000);
-
- if (ppc_md.progress)
- ppc_md.progress("hdpu_setup_arch: enter", 0);
-
- hdpu_setup_bridge();
-
- hdpu_setup_peripherals();
-
-#ifdef CONFIG_SERIAL_MPSC_CONSOLE
- hdpu_early_serial_map();
-#endif
-
- printk("SKY HDPU Compute Blade \n");
-
- if (ppc_md.progress)
- ppc_md.progress("hdpu_setup_arch: exit", 0);
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_OK);
- return;
-}
-static void __init hdpu_init_irq(void)
-{
- mv64360_init_irq();
-}
-
-static void __init hdpu_set_l1pe()
-{
- unsigned long ictrl;
- asm volatile ("mfspr %0, 1011":"=r" (ictrl):);
- ictrl |= ICTRL_EICE | ICTRL_EDC | ICTRL_EICP;
- asm volatile ("mtspr 1011, %0"::"r" (ictrl));
-}
-
-/*
- * Set BAT 1 to map 0xf1000000 to end of physical memory space.
- */
-static __inline__ void hdpu_set_bat(void)
-{
- mb();
- mtspr(SPRN_DBAT1U, 0xf10001fe);
- mtspr(SPRN_DBAT1L, 0xf100002a);
- mb();
-
- return;
-}
-
-unsigned long __init hdpu_find_end_of_memory(void)
-{
- return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE,
- MV64x60_TYPE_MV64360);
-}
-
-static void hdpu_reset_board(void)
-{
- volatile int infinite = 1;
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_RESET);
-
- local_irq_disable();
-
- /* Clear all the LEDs */
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, ((1 << 4) |
- (1 << 5) | (1 << 6)));
-
- /* disable and invalidate the L2 cache */
- _set_L2CR(0);
- _set_L2CR(0x200000);
-
- /* flush and disable L1 I/D cache */
- __asm__ __volatile__
- ("\n"
- "mfspr 3,1008\n"
- "ori 5,5,0xcc00\n"
- "ori 4,3,0xc00\n"
- "andc 5,3,5\n"
- "sync\n"
- "mtspr 1008,4\n"
- "isync\n" "sync\n" "mtspr 1008,5\n" "isync\n" "sync\n");
-
- /* Hit the reset bit */
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, (1 << 3));
-
- while (infinite)
- infinite = infinite;
-
- return;
-}
-
-static void hdpu_restart(char *cmd)
-{
- volatile ulong i = 10000000;
-
- hdpu_reset_board();
-
- while (i-- > 0) ;
- panic("restart failed\n");
-}
-
-static void hdpu_halt(void)
-{
- local_irq_disable();
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_HALT);
-
- /* Clear all the LEDs */
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, ((1 << 4) | (1 << 5) |
- (1 << 6)));
- while (1) ;
- /* NOTREACHED */
-}
-
-static void hdpu_power_off(void)
-{
- hdpu_halt();
- /* NOTREACHED */
-}
-
-static int hdpu_show_cpuinfo(struct seq_file *m)
-{
- uint pvid;
-
- pvid = mfspr(SPRN_PVR);
- seq_printf(m, "vendor\t\t: Sky Computers\n");
- seq_printf(m, "machine\t\t: HDPU Compute Blade\n");
- seq_printf(m, "PVID\t\t: 0x%x, vendor: %s\n",
- pvid, (pvid & (1 << 15) ? "IBM" : "Motorola"));
-
- return 0;
-}
-
-static void __init hdpu_calibrate_decr(void)
-{
- ulong freq;
-
- if (ppcboot_bd_valid)
- freq = ppcboot_bd.bi_busfreq / 4;
- else
- freq = 133000000;
-
- printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
- freq / 1000000, freq % 1000000);
-
- tb_ticks_per_jiffy = freq / HZ;
- tb_to_us = mulhwu_scale_factor(freq, 1000000);
-
- return;
-}
-
-static void parse_bootinfo(unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- bd_t *bd = NULL;
- char *cmdline_start = NULL;
- int cmdline_len = 0;
-
- if (r3) {
- if ((r3 & 0xf0000000) == 0)
- r3 += KERNELBASE;
- if ((r3 & 0xf0000000) == KERNELBASE) {
- bd = (void *)r3;
-
- memcpy(&ppcboot_bd, bd, sizeof(ppcboot_bd));
- ppcboot_bd_valid = 1;
- }
- }
-#ifdef CONFIG_BLK_DEV_INITRD
- if (r4 && r5 && r5 > r4) {
- if ((r4 & 0xf0000000) == 0)
- r4 += KERNELBASE;
- if ((r5 & 0xf0000000) == 0)
- r5 += KERNELBASE;
- if ((r4 & 0xf0000000) == KERNELBASE) {
- initrd_start = r4;
- initrd_end = r5;
- initrd_below_start_ok = 1;
- }
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- if (r6 && r7 && r7 > r6) {
- if ((r6 & 0xf0000000) == 0)
- r6 += KERNELBASE;
- if ((r7 & 0xf0000000) == 0)
- r7 += KERNELBASE;
- if ((r6 & 0xf0000000) == KERNELBASE) {
- cmdline_start = (void *)r6;
- cmdline_len = (r7 - r6);
- strncpy(cmd_line, cmdline_start, cmdline_len);
- }
- }
-}
-
-void hdpu_heartbeat(void)
-{
- if (mv64x60_read(&bh, MV64x60_GPP_VALUE) & (1 << 5))
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, (1 << 5));
- else
- mv64x60_write(&bh, MV64x60_GPP_VALUE_SET, (1 << 5));
-
- ppc_md.heartbeat_count = ppc_md.heartbeat_reset;
-
-}
-
-static void __init hdpu_map_io(void)
-{
- io_block_mapping(0xf1000000, 0xf1000000, 0x20000, _PAGE_IO);
-}
-
-#ifdef CONFIG_SMP
-char hdpu_smp0[] = "SMP Cpu #0";
-char hdpu_smp1[] = "SMP Cpu #1";
-
-static irqreturn_t hdpu_smp_cpu0_int_handler(int irq, void *dev_id)
-{
- volatile unsigned int doorbell;
-
- doorbell = mv64x60_read(&bh, MV64360_CPU0_DOORBELL);
-
- /* Ack the doorbell interrupts */
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL_CLR, doorbell);
-
- if (doorbell & 1) {
- smp_message_recv(0);
- }
- if (doorbell & 2) {
- smp_message_recv(1);
- }
- if (doorbell & 4) {
- smp_message_recv(2);
- }
- if (doorbell & 8) {
- smp_message_recv(3);
- }
- return IRQ_HANDLED;
-}
-
-static irqreturn_t hdpu_smp_cpu1_int_handler(int irq, void *dev_id)
-{
- volatile unsigned int doorbell;
-
- doorbell = mv64x60_read(&bh, MV64360_CPU1_DOORBELL);
-
- /* Ack the doorbell interrupts */
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL_CLR, doorbell);
-
- if (doorbell & 1) {
- smp_message_recv(0);
- }
- if (doorbell & 2) {
- smp_message_recv(1);
- }
- if (doorbell & 4) {
- smp_message_recv(2);
- }
- if (doorbell & 8) {
- smp_message_recv(3);
- }
- return IRQ_HANDLED;
-}
-
-static void smp_hdpu_CPU_two(void)
-{
- __asm__ __volatile__
- ("\n"
- "lis 3,0x0000\n"
- "ori 3,3,0x00c0\n"
- "mtspr 26, 3\n" "li 4,0\n" "mtspr 27,4\n" "rfi");
-
-}
-
-static int smp_hdpu_probe(void)
-{
- int *cpu_count_reg;
- int num_cpus = 0;
-
- cpu_count_reg = ioremap(HDPU_NEXUS_ID_BASE, HDPU_NEXUS_ID_SIZE);
- if (cpu_count_reg) {
- num_cpus = (*cpu_count_reg >> 20) & 0x3;
- iounmap(cpu_count_reg);
- }
-
- /* Validate the bits in the CPLD. If we could not map the reg, return 2.
- * If the register reported 0 or 3, return 2.
- * Older CPLD revisions set these bits to all ones (val = 3).
- */
- if ((num_cpus < 1) || (num_cpus > 2)) {
- printk
- ("Unable to determine the number of processors %d . deafulting to 2.\n",
- num_cpus);
- num_cpus = 2;
- }
- return num_cpus;
-}
-
-static void
-smp_hdpu_message_pass(int target, int msg)
-{
- if (msg > 0x3) {
- printk("SMP %d: smp_message_pass: unknown msg %d\n",
- smp_processor_id(), msg);
- return;
- }
- switch (target) {
- case MSG_ALL:
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL, 1 << msg);
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL, 1 << msg);
- break;
- case MSG_ALL_BUT_SELF:
- if (smp_processor_id())
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL, 1 << msg);
- else
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL, 1 << msg);
- break;
- default:
- if (target == 0)
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL, 1 << msg);
- else
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL, 1 << msg);
- break;
- }
-}
-
-static void smp_hdpu_kick_cpu(int nr)
-{
- volatile unsigned int *bootaddr;
-
- if (ppc_md.progress)
- ppc_md.progress("smp_hdpu_kick_cpu", 0);
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR | CPUSTATE_KERNEL_CPU1_KICK);
-
- /* Disable BootCS. Must also reduce the windows size to zero. */
- bh.ci->disable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, 0, 0, 0);
-
- bootaddr = ioremap(HDPU_INTERNAL_SRAM_BASE, HDPU_INTERNAL_SRAM_SIZE);
- if (!bootaddr) {
- if (ppc_md.progress)
- ppc_md.progress("smp_hdpu_kick_cpu: ioremap failed", 0);
- return;
- }
-
- memcpy((void *)(bootaddr + 0x40), (void *)&smp_hdpu_CPU_two, 0x20);
-
- /* map SRAM to 0xfff00000 */
- bh.ci->disable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
- 0xfff00000, HDPU_INTERNAL_SRAM_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
-
- /* Enable CPU1 arbitration */
- mv64x60_clr_bits(&bh, MV64x60_CPU_MASTER_CNTL, (1 << 9));
-
- /*
- * Wait 100mSecond until other CPU has reached __secondary_start.
- * When it reaches, it is permittable to rever the SRAM mapping etc...
- */
- mdelay(100);
- *(unsigned long *)KERNELBASE = nr;
- asm volatile ("dcbf 0,%0"::"r" (KERNELBASE):"memory");
-
- iounmap(bootaddr);
-
- /* Set up window for internal sram (256KByte insize) */
- bh.ci->disable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
- HDPU_INTERNAL_SRAM_BASE,
- HDPU_INTERNAL_SRAM_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
- /*
- * Set up windows for embedded FLASH (using boot CS window).
- */
-
- bh.ci->disable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
- HDPU_EMB_FLASH_BASE, HDPU_EMB_FLASH_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
-}
-
-static void smp_hdpu_setup_cpu(int cpu_nr)
-{
- if (cpu_nr == 0) {
- if (ppc_md.progress)
- ppc_md.progress("smp_hdpu_setup_cpu 0", 0);
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL_CLR, 0xff);
- mv64x60_write(&bh, MV64360_CPU0_DOORBELL_MASK, 0xff);
- request_irq(60, hdpu_smp_cpu0_int_handler,
- IRQF_DISABLED, hdpu_smp0, 0);
- }
-
- if (cpu_nr == 1) {
- if (ppc_md.progress)
- ppc_md.progress("smp_hdpu_setup_cpu 1", 0);
-
- hdpu_cpustate_set(CPUSTATE_KERNEL_MAJOR |
- CPUSTATE_KERNEL_CPU1_OK);
-
- /* Enable L1 Parity Bits */
- hdpu_set_l1pe();
-
- /* Enable L2 cache */
- _set_L2CR(0);
- _set_L2CR(0x80080000);
-
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL_CLR, 0x0);
- mv64x60_write(&bh, MV64360_CPU1_DOORBELL_MASK, 0xff);
- request_irq(28, hdpu_smp_cpu1_int_handler,
- IRQF_DISABLED, hdpu_smp1, 0);
- }
-
-}
-
-void __devinit hdpu_tben_give()
-{
- volatile unsigned long *val = 0;
-
- /* By writing 0 to the TBEN_BASE, the timebases is frozen */
- val = ioremap(HDPU_TBEN_BASE, 4);
- *val = 0;
- mb();
-
- spin_lock(&timebase_lock);
- timebase_upper = get_tbu();
- timebase_lower = get_tbl();
- spin_unlock(&timebase_lock);
-
- while (timebase_upper || timebase_lower)
- barrier();
-
- /* By writing 1 to the TBEN_BASE, the timebases is thawed */
- *val = 1;
- mb();
-
- iounmap(val);
-
-}
-
-void __devinit hdpu_tben_take()
-{
- while (!(timebase_upper || timebase_lower))
- barrier();
-
- spin_lock(&timebase_lock);
- set_tb(timebase_upper, timebase_lower);
- timebase_upper = 0;
- timebase_lower = 0;
- spin_unlock(&timebase_lock);
-}
-
-static struct smp_ops_t hdpu_smp_ops = {
- .message_pass = smp_hdpu_message_pass,
- .probe = smp_hdpu_probe,
- .kick_cpu = smp_hdpu_kick_cpu,
- .setup_cpu = smp_hdpu_setup_cpu,
- .give_timebase = hdpu_tben_give,
- .take_timebase = hdpu_tben_take,
-};
-#endif /* CONFIG_SMP */
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- parse_bootinfo(r3, r4, r5, r6, r7);
-
- isa_mem_base = 0;
-
- ppc_md.setup_arch = hdpu_setup_arch;
- ppc_md.init = hdpu_init2;
- ppc_md.show_cpuinfo = hdpu_show_cpuinfo;
- ppc_md.init_IRQ = hdpu_init_irq;
- ppc_md.get_irq = mv64360_get_irq;
- ppc_md.restart = hdpu_restart;
- ppc_md.power_off = hdpu_power_off;
- ppc_md.halt = hdpu_halt;
- ppc_md.find_end_of_memory = hdpu_find_end_of_memory;
- ppc_md.calibrate_decr = hdpu_calibrate_decr;
- ppc_md.setup_io_mappings = hdpu_map_io;
-
- bh.p_base = CONFIG_MV64X60_NEW_BASE;
- bh.v_base = (unsigned long *)bh.p_base;
-
- hdpu_set_bat();
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG)
- ppc_md.progress = hdpu_mpsc_progress; /* embedded UART */
- mv64x60_progress_init(bh.p_base);
-#endif /* CONFIG_SERIAL_TEXT_DEBUG */
-
-#ifdef CONFIG_SMP
- smp_ops = &hdpu_smp_ops;
-#endif /* CONFIG_SMP */
-
-#if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH)
- platform_notify = hdpu_platform_notify;
-#endif
- return;
-}
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
-/* SMP safe version of the serial text debug routine. Uses Semaphore 0 */
-void hdpu_mpsc_progress(char *s, unsigned short hex)
-{
- while (mv64x60_read(&bh, MV64360_WHO_AM_I) !=
- mv64x60_read(&bh, MV64360_SEMAPHORE_0)) {
- }
- mv64x60_mpsc_progress(s, hex);
- mv64x60_write(&bh, MV64360_SEMAPHORE_0, 0xff);
-}
-#endif
-
-static void hdpu_cpustate_set(unsigned char new_state)
-{
- unsigned int state = (new_state << 21);
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, (0xff << 21));
- mv64x60_write(&bh, MV64x60_GPP_VALUE_CLR, state);
-}
-
-#ifdef CONFIG_MTD_PHYSMAP
-static struct mtd_partition hdpu_partitions[] = {
- {
- .name = "Root FS",
- .size = 0x03400000,
- .offset = 0,
- .mask_flags = 0,
- },{
- .name = "User FS",
- .size = 0x00800000,
- .offset = 0x03400000,
- .mask_flags = 0,
- },{
- .name = "Kernel Image",
- .size = 0x002C0000,
- .offset = 0x03C00000,
- .mask_flags = 0,
- },{
- .name = "bootEnv",
- .size = 0x00040000,
- .offset = 0x03EC0000,
- .mask_flags = 0,
- },{
- .name = "bootROM",
- .size = 0x00100000,
- .offset = 0x03F00000,
- .mask_flags = 0,
- }
-};
-
-static int __init hdpu_setup_mtd(void)
-{
-
- physmap_set_partitions(hdpu_partitions, 5);
- return 0;
-}
-
-arch_initcall(hdpu_setup_mtd);
-#endif
-
-#ifdef CONFIG_HDPU_FEATURES
-
-static struct resource hdpu_cpustate_resources[] = {
- [0] = {
- .name = "addr base",
- .start = MV64x60_GPP_VALUE_SET,
- .end = MV64x60_GPP_VALUE_CLR + 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct resource hdpu_nexus_resources[] = {
- [0] = {
- .name = "nexus register",
- .start = HDPU_NEXUS_ID_BASE,
- .end = HDPU_NEXUS_ID_BASE + HDPU_NEXUS_ID_SIZE,
- .flags = IORESOURCE_MEM,
- },
-};
-
-static struct platform_device hdpu_cpustate_device = {
- .name = HDPU_CPUSTATE_NAME,
- .id = 0,
- .num_resources = ARRAY_SIZE(hdpu_cpustate_resources),
- .resource = hdpu_cpustate_resources,
-};
-
-static struct platform_device hdpu_nexus_device = {
- .name = HDPU_NEXUS_NAME,
- .id = 0,
- .num_resources = ARRAY_SIZE(hdpu_nexus_resources),
- .resource = hdpu_nexus_resources,
-};
-
-static int __init hdpu_add_pds(void)
-{
- platform_device_register(&hdpu_cpustate_device);
- platform_device_register(&hdpu_nexus_device);
- return 0;
-}
-
-arch_initcall(hdpu_add_pds);
-#endif
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