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-rw-r--r--arch/mips/pmc-sierra/yosemite/i2c-yosemite.h96
-rw-r--r--arch/mips/pmc-sierra/yosemite/prom.c7
-rw-r--r--arch/mips/pmc-sierra/yosemite/smp.c149
3 files changed, 89 insertions, 163 deletions
diff --git a/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h b/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
deleted file mode 100644
index 31c5523276f..00000000000
--- a/arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * arch/mips/pmc-sierra/yosemite/i2c-yosemite.h
- *
- * Copyright (C) 2003 PMC-Sierra Inc.
- * Author: Manish Lachwani (lachwani@pmc-sierra.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.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __I2C_YOSEMITE_H
-#define __I2C_YOSEMITE_H
-
-/* Read and Write operations to the chip */
-
-#define TITAN_I2C_BASE 0xbb000000 /* XXX Needs to change */
-
-#define TITAN_I2C_WRITE(offset, data) \
- *(volatile unsigned long *)(TITAN_I2C_BASE + offset) = data
-
-#define TITAN_I2C_READ(offset) *(volatile unsigned long *)(TITAN_I2C_BASE + offset)
-
-
-/* Local constansts*/
-#define TITAN_I2C_MAX_FILTER 15
-#define TITAN_I2C_MAX_CLK 1023
-#define TITAN_I2C_MAX_ARBF 15
-#define TITAN_I2C_MAX_NAK 15
-#define TITAN_I2C_MAX_MASTERCODE 7
-#define TITAN_I2C_MAX_WORDS_PER_RW 4
-#define TITAN_I2C_MAX_POLL 100
-
-/* Registers used for I2C work */
-#define TITAN_I2C_SCMB_CONTROL 0x0180 /* SCMB Control */
-#define TITAN_I2C_SCMB_CLOCK_A 0x0184 /* SCMB Clock A */
-#define TITAN_I2C_SCMB_CLOCK_B 0x0188 /* SCMB Clock B */
-#define TITAN_I2C_CONFIG 0x01A0 /* I2C Config */
-#define TITAN_I2C_COMMAND 0x01A4 /* I2C Command */
-#define TITAN_I2C_SLAVE_ADDRESS 0x01A8 /* I2C Slave Address */
-#define TITAN_I2C_DATA 0x01AC /* I2C Data [15:0] */
-#define TITAN_I2C_INTERRUPTS 0x01BC /* I2C Interrupts */
-
-/* Error */
-#define TITAN_I2C_ERR_ARB_LOST (-9220)
-#define TITAN_I2C_ERR_NO_RESP (-9221)
-#define TITAN_I2C_ERR_DATA_COLLISION (-9222)
-#define TITAN_I2C_ERR_TIMEOUT (-9223)
-#define TITAN_I2C_ERR_OK 0
-
-/* I2C Command Type */
-typedef enum {
- TITAN_I2C_CMD_WRITE = 0,
- TITAN_I2C_CMD_READ = 1,
- TITAN_I2C_CMD_READ_WRITE = 2
-} titan_i2c_cmd_type;
-
-/* I2C structures */
-typedef struct {
- int filtera; /* Register 0x0184, bits 15 - 12 */
- int clka; /* Register 0x0184, bits 9 - 0 */
- int filterb; /* Register 0x0188, bits 15 - 12 */
- int clkb; /* Register 0x0188, bits 9 - 0 */
-} titan_i2c_config;
-
-/* I2C command type */
-typedef struct {
- titan_i2c_cmd_type type; /* Type of command */
- int num_arb; /* Register 0x01a0, bits 15 - 12 */
- int num_nak; /* Register 0x01a0, bits 11 - 8 */
- int addr_size; /* Register 0x01a0, bit 7 */
- int mst_code; /* Register 0x01a0, bits 6 - 4 */
- int arb_en; /* Register 0x01a0, bit 1 */
- int speed; /* Register 0x01a0, bit 0 */
- int slave_addr; /* Register 0x01a8 */
- int write_size; /* Register 0x01a4, bits 10 - 8 */
- unsigned int *data; /* Register 0x01ac */
-} titan_i2c_command;
-
-#endif /* __I2C_YOSEMITE_H */
diff --git a/arch/mips/pmc-sierra/yosemite/prom.c b/arch/mips/pmc-sierra/yosemite/prom.c
index 9b9936de658..35dc435846a 100644
--- a/arch/mips/pmc-sierra/yosemite/prom.c
+++ b/arch/mips/pmc-sierra/yosemite/prom.c
@@ -19,6 +19,7 @@
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/reboot.h>
+#include <asm/smp-ops.h>
#include <asm/system.h>
#include <asm/bootinfo.h>
#include <asm/pmon.h>
@@ -78,6 +79,8 @@ static void prom_halt(void)
__asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0");
}
+extern struct plat_smp_ops yos_smp_ops;
+
/*
* Init routine which accepts the variables from PMON
*/
@@ -126,9 +129,9 @@ void __init prom_init(void)
env++;
}
- mips_machtype = MACH_TITAN_YOSEMITE;
-
prom_grab_secondary();
+
+ register_smp_ops(&yos_smp_ops);
}
void __init prom_free_prom_memory(void)
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index b0f12cd2968..653f3ec61ca 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -42,70 +42,6 @@ void __init prom_grab_secondary(void)
launchstack + LAUNCHSTACK_SIZE, 0);
}
-/*
- * Detect available CPUs, populate phys_cpu_present_map before smp_init
- *
- * We don't want to start the secondary CPU yet nor do we have a nice probing
- * feature in PMON so we just assume presence of the secondary core.
- */
-void __init plat_smp_setup(void)
-{
- int i;
-
- cpus_clear(phys_cpu_present_map);
-
- for (i = 0; i < 2; i++) {
- cpu_set(i, phys_cpu_present_map);
- __cpu_number_map[i] = i;
- __cpu_logical_map[i] = i;
- }
-}
-
-void __init plat_prepare_cpus(unsigned int max_cpus)
-{
- /*
- * Be paranoid. Enable the IPI only if we're really about to go SMP.
- */
- if (cpus_weight(cpu_possible_map))
- set_c0_status(STATUSF_IP5);
-}
-
-/*
- * Firmware CPU startup hook
- * Complicated by PMON's weird interface which tries to minimic the UNIX fork.
- * It launches the next * available CPU and copies some information on the
- * stack so the first thing we do is throw away that stuff and load useful
- * values into the registers ...
- */
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
-{
- unsigned long gp = (unsigned long) task_thread_info(idle);
- unsigned long sp = __KSTK_TOS(idle);
-
- secondary_sp = sp;
- secondary_gp = gp;
-
- spin_unlock(&launch_lock);
-}
-
-/* Hook for after all CPUs are online */
-void prom_cpus_done(void)
-{
-}
-
-/*
- * After we've done initial boot, this function is called to allow the
- * board code to clean up state, if needed
- */
-void __cpuinit prom_init_secondary(void)
-{
- set_c0_status(ST0_CO | ST0_IE | ST0_IM);
-}
-
-void __cpuinit prom_smp_finish(void)
-{
-}
-
void titan_mailbox_irq(void)
{
int cpu = smp_processor_id();
@@ -133,7 +69,7 @@ void titan_mailbox_irq(void)
/*
* Send inter-processor interrupt
*/
-void core_send_ipi(int cpu, unsigned int action)
+static void yos_send_ipi_single(int cpu, unsigned int action)
{
/*
* Generate an INTMSG so that it can be sent over to the
@@ -159,3 +95,86 @@ void core_send_ipi(int cpu, unsigned int action)
break;
}
}
+
+static void yos_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+ unsigned int i;
+
+ for_each_cpu_mask(i, mask)
+ yos_send_ipi_single(i, action);
+}
+
+/*
+ * After we've done initial boot, this function is called to allow the
+ * board code to clean up state, if needed
+ */
+static void __cpuinit yos_init_secondary(void)
+{
+ set_c0_status(ST0_CO | ST0_IE | ST0_IM);
+}
+
+static void __cpuinit yos_smp_finish(void)
+{
+}
+
+/* Hook for after all CPUs are online */
+static void yos_cpus_done(void)
+{
+}
+
+/*
+ * Firmware CPU startup hook
+ * Complicated by PMON's weird interface which tries to minimic the UNIX fork.
+ * It launches the next * available CPU and copies some information on the
+ * stack so the first thing we do is throw away that stuff and load useful
+ * values into the registers ...
+ */
+static void __cpuinit yos_boot_secondary(int cpu, struct task_struct *idle)
+{
+ unsigned long gp = (unsigned long) task_thread_info(idle);
+ unsigned long sp = __KSTK_TOS(idle);
+
+ secondary_sp = sp;
+ secondary_gp = gp;
+
+ spin_unlock(&launch_lock);
+}
+
+/*
+ * Detect available CPUs, populate phys_cpu_present_map before smp_init
+ *
+ * We don't want to start the secondary CPU yet nor do we have a nice probing
+ * feature in PMON so we just assume presence of the secondary core.
+ */
+static void __init yos_smp_setup(void)
+{
+ int i;
+
+ cpus_clear(phys_cpu_present_map);
+
+ for (i = 0; i < 2; i++) {
+ cpu_set(i, phys_cpu_present_map);
+ __cpu_number_map[i] = i;
+ __cpu_logical_map[i] = i;
+ }
+}
+
+static void __init yos_prepare_cpus(unsigned int max_cpus)
+{
+ /*
+ * Be paranoid. Enable the IPI only if we're really about to go SMP.
+ */
+ if (cpus_weight(cpu_possible_map))
+ set_c0_status(STATUSF_IP5);
+}
+
+struct plat_smp_ops yos_smp_ops = {
+ .send_ipi_single = yos_send_ipi_single,
+ .send_ipi_mask = yos_send_ipi_mask,
+ .init_secondary = yos_init_secondary,
+ .smp_finish = yos_smp_finish,
+ .cpus_done = yos_cpus_done,
+ .boot_secondary = yos_boot_secondary,
+ .smp_setup = yos_smp_setup,
+ .prepare_cpus = yos_prepare_cpus,
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-31 07:53:33 +0000