#include <asm/octeon/octeon.h>
#include <asm/octeon/pci-octeon.h>
+#include <asm/octeon/cvmx-mio-defs.h>
#ifdef CONFIG_CAVIUM_DECODE_RSL
extern void cvmx_interrupt_rsl_decode(void);
*/
uint64_t octeon_get_clock_rate(void)
{
- if (octeon_is_simulation())
- octeon_bootinfo->eclock_hz = 6000000;
- return octeon_bootinfo->eclock_hz;
+ struct cvmx_sysinfo *sysinfo = cvmx_sysinfo_get();
+
+ return sysinfo->cpu_clock_hz;
}
EXPORT_SYMBOL(octeon_get_clock_rate);
+static u64 octeon_io_clock_rate;
+
+u64 octeon_get_io_clock_rate(void)
+{
+ return octeon_io_clock_rate;
+}
+EXPORT_SYMBOL(octeon_get_io_clock_rate);
+
+
/**
* Write to the LCD display connected to the bootbus. This display
* exists on most Cavium evaluation boards. If it doesn't exist, then
cvmmemctl.s.wbfltime = 0;
/* R/W If set, do not put Istream in the L2 cache. */
cvmmemctl.s.istrnol2 = 0;
- /* R/W The write buffer threshold. */
- cvmmemctl.s.wbthresh = 10;
+
+ /*
+ * R/W The write buffer threshold. As per erratum Core-14752
+ * for CN63XX, a sc/scd might fail if the write buffer is
+ * full. Lowering WBTHRESH greatly lowers the chances of the
+ * write buffer ever being full and triggering the erratum.
+ */
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X))
+ cvmmemctl.s.wbthresh = 4;
+ else
+ cvmmemctl.s.wbthresh = 10;
+
/* R/W If set, CVMSEG is available for loads/stores in
* kernel/debug mode. */
#if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0
* is max legal value. */
cvmmemctl.s.lmemsz = CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE;
+ write_c0_cvmmemctl(cvmmemctl.u64);
if (smp_processor_id() == 0)
pr_notice("CVMSEG size: %d cache lines (%d bytes)\n",
CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE,
CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE * 128);
- write_c0_cvmmemctl(cvmmemctl.u64);
-
/* Move the performance counter interrupts to IRQ 6 */
cvmctl = read_c0_cvmctl();
cvmctl &= ~(7 << 7);
cvmx_phys_to_ptr(octeon_boot_desc_ptr->cvmx_desc_vaddr);
cvmx_bootmem_init(cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr));
+ sysinfo = cvmx_sysinfo_get();
+ memset(sysinfo, 0, sizeof(*sysinfo));
+ sysinfo->system_dram_size = octeon_bootinfo->dram_size << 20;
+ sysinfo->phy_mem_desc_ptr =
+ cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr);
+ sysinfo->core_mask = octeon_bootinfo->core_mask;
+ sysinfo->exception_base_addr = octeon_bootinfo->exception_base_addr;
+ sysinfo->cpu_clock_hz = octeon_bootinfo->eclock_hz;
+ sysinfo->dram_data_rate_hz = octeon_bootinfo->dclock_hz * 2;
+ sysinfo->board_type = octeon_bootinfo->board_type;
+ sysinfo->board_rev_major = octeon_bootinfo->board_rev_major;
+ sysinfo->board_rev_minor = octeon_bootinfo->board_rev_minor;
+ memcpy(sysinfo->mac_addr_base, octeon_bootinfo->mac_addr_base,
+ sizeof(sysinfo->mac_addr_base));
+ sysinfo->mac_addr_count = octeon_bootinfo->mac_addr_count;
+ memcpy(sysinfo->board_serial_number,
+ octeon_bootinfo->board_serial_number,
+ sizeof(sysinfo->board_serial_number));
+ sysinfo->compact_flash_common_base_addr =
+ octeon_bootinfo->compact_flash_common_base_addr;
+ sysinfo->compact_flash_attribute_base_addr =
+ octeon_bootinfo->compact_flash_attribute_base_addr;
+ sysinfo->led_display_base_addr = octeon_bootinfo->led_display_base_addr;
+ sysinfo->dfa_ref_clock_hz = octeon_bootinfo->dfa_ref_clock_hz;
+ sysinfo->bootloader_config_flags = octeon_bootinfo->config_flags;
+
+ if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) {
+ /* I/O clock runs at a different rate than the CPU. */
+ union cvmx_mio_rst_boot rst_boot;
+ rst_boot.u64 = cvmx_read_csr(CVMX_MIO_RST_BOOT);
+ octeon_io_clock_rate = 50000000 * rst_boot.s.pnr_mul;
+ } else {
+ octeon_io_clock_rate = sysinfo->cpu_clock_hz;
+ }
+
/*
* Only enable the LED controller if we're running on a CN38XX, CN58XX,
* or CN56XX. The CN30XX and CN31XX don't have an LED controller.
}
#endif
- sysinfo = cvmx_sysinfo_get();
- memset(sysinfo, 0, sizeof(*sysinfo));
- sysinfo->system_dram_size = octeon_bootinfo->dram_size << 20;
- sysinfo->phy_mem_desc_ptr =
- cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr);
- sysinfo->core_mask = octeon_bootinfo->core_mask;
- sysinfo->exception_base_addr = octeon_bootinfo->exception_base_addr;
- sysinfo->cpu_clock_hz = octeon_bootinfo->eclock_hz;
- sysinfo->dram_data_rate_hz = octeon_bootinfo->dclock_hz * 2;
- sysinfo->board_type = octeon_bootinfo->board_type;
- sysinfo->board_rev_major = octeon_bootinfo->board_rev_major;
- sysinfo->board_rev_minor = octeon_bootinfo->board_rev_minor;
- memcpy(sysinfo->mac_addr_base, octeon_bootinfo->mac_addr_base,
- sizeof(sysinfo->mac_addr_base));
- sysinfo->mac_addr_count = octeon_bootinfo->mac_addr_count;
- memcpy(sysinfo->board_serial_number,
- octeon_bootinfo->board_serial_number,
- sizeof(sysinfo->board_serial_number));
- sysinfo->compact_flash_common_base_addr =
- octeon_bootinfo->compact_flash_common_base_addr;
- sysinfo->compact_flash_attribute_base_addr =
- octeon_bootinfo->compact_flash_attribute_base_addr;
- sysinfo->led_display_base_addr = octeon_bootinfo->led_display_base_addr;
- sysinfo->dfa_ref_clock_hz = octeon_bootinfo->dfa_ref_clock_hz;
- sysinfo->bootloader_config_flags = octeon_bootinfo->config_flags;
-
-
octeon_check_cpu_bist();
octeon_uart = octeon_get_boot_uart();
void prom_free_prom_memory(void)
{
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X)) {
+ /* Check for presence of Core-14449 fix. */
+ u32 insn;
+ u32 *foo;
+
+ foo = &insn;
+
+ asm volatile("# before" : : : "memory");
+ prefetch(foo);
+ asm volatile(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ "bal 1f\n\t"
+ "nop\n"
+ "1:\tlw %0,-12($31)\n\t"
+ ".set pop\n\t"
+ : "=r" (insn) : : "$31", "memory");
+
+ if ((insn >> 26) != 0x33)
+ panic("No PREF instruction at Core-14449 probe point.\n");
+
+ if (((insn >> 16) & 0x1f) != 28)
+ panic("Core-14449 WAR not in place (%04x).\n"
+ "Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).\n", insn);
+ }
#ifdef CONFIG_CAVIUM_DECODE_RSL
cvmx_interrupt_rsl_enable();
git.openpandora.org / pandora-kernel.git / blobdiff