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authorDan Handley <dan.handley@arm.com>2014-04-11 11:52:12 +0100
committerDan Handley <dan.handley@arm.com>2014-05-06 12:35:02 +0100
commite8246c07142cf18db3c7f37bd1fb84dc416746f3 (patch)
tree61e7598ec9295a2c6a010c4642a350f03c06ea7b /plat
parent4ecca33988b90de43ec4f4a929094a38a23fda31 (diff)
downloadarm-trusted-firmware-e8246c07142cf18db3c7f37bd1fb84dc416746f3.tar.gz
Move FVP power driver to FVP platform
Move the FVP power driver to a directory under the FVP platform port as this is not a generically usable driver. Change-Id: Ibc78bd88752eb3e3964336741488349ac345f4f0
Diffstat (limited to 'plat')
-rw-r--r--plat/fvp/aarch64/bl1_plat_helpers.S2
-rw-r--r--plat/fvp/bl31_plat_setup.c2
-rw-r--r--plat/fvp/drivers/pwrc/fvp_pwrc.c111
-rw-r--r--plat/fvp/drivers/pwrc/fvp_pwrc.h77
-rw-r--r--plat/fvp/plat_pm.c2
-rw-r--r--plat/fvp/plat_topology.c2
-rw-r--r--plat/fvp/platform.mk4
7 files changed, 194 insertions, 6 deletions
diff --git a/plat/fvp/aarch64/bl1_plat_helpers.S b/plat/fvp/aarch64/bl1_plat_helpers.S
index 15e3a21..69fb14b 100644
--- a/plat/fvp/aarch64/bl1_plat_helpers.S
+++ b/plat/fvp/aarch64/bl1_plat_helpers.S
@@ -30,9 +30,9 @@
#include <arch.h>
#include <platform.h>
-#include <fvp_pwrc.h>
#include <gic.h>
#include <asm_macros.S>
+#include "../drivers/pwrc/fvp_pwrc.h"
.globl platform_get_entrypoint
.globl platform_cold_boot_init
diff --git a/plat/fvp/bl31_plat_setup.c b/plat/fvp/bl31_plat_setup.c
index 9bf83eb..bd167df 100644
--- a/plat/fvp/bl31_plat_setup.c
+++ b/plat/fvp/bl31_plat_setup.c
@@ -30,8 +30,8 @@
#include <platform.h>
#include <arch.h>
-#include <fvp_pwrc.h>
#include <console.h>
+#include "drivers/pwrc/fvp_pwrc.h"
/*******************************************************************************
* Declarations of linker defined symbols which will help us find the layout
diff --git a/plat/fvp/drivers/pwrc/fvp_pwrc.c b/plat/fvp/drivers/pwrc/fvp_pwrc.c
new file mode 100644
index 0000000..164a734
--- /dev/null
+++ b/plat/fvp/drivers/pwrc/fvp_pwrc.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <assert.h>
+#include <arch_helpers.h>
+#include <platform.h>
+#include <bakery_lock.h>
+#include "fvp_pwrc.h"
+
+/*
+ * TODO: Someday there will be a generic power controller api. At the moment
+ * each platform has its own pwrc so just exporting functions is fine.
+ */
+static bakery_lock pwrc_lock __attribute__ ((section("tzfw_coherent_mem")));
+
+unsigned int fvp_pwrc_get_cpu_wkr(unsigned long mpidr)
+{
+ unsigned int rc = 0;
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PSYSR_OFF, (unsigned int) mpidr);
+ rc = PSYSR_WK(mmio_read_32(PWRC_BASE + PSYSR_OFF));
+ bakery_lock_release(mpidr, &pwrc_lock);
+ return rc;
+}
+
+unsigned int fvp_pwrc_read_psysr(unsigned long mpidr)
+{
+ unsigned int rc = 0;
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PSYSR_OFF, (unsigned int) mpidr);
+ rc = mmio_read_32(PWRC_BASE + PSYSR_OFF);
+ bakery_lock_release(mpidr, &pwrc_lock);
+ return rc;
+}
+
+void fvp_pwrc_write_pponr(unsigned long mpidr)
+{
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PPONR_OFF, (unsigned int) mpidr);
+ bakery_lock_release(mpidr, &pwrc_lock);
+}
+
+void fvp_pwrc_write_ppoffr(unsigned long mpidr)
+{
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PPOFFR_OFF, (unsigned int) mpidr);
+ bakery_lock_release(mpidr, &pwrc_lock);
+}
+
+void fvp_pwrc_set_wen(unsigned long mpidr)
+{
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PWKUPR_OFF,
+ (unsigned int) (PWKUPR_WEN | mpidr));
+ bakery_lock_release(mpidr, &pwrc_lock);
+}
+
+void fvp_pwrc_clr_wen(unsigned long mpidr)
+{
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PWKUPR_OFF,
+ (unsigned int) mpidr);
+ bakery_lock_release(mpidr, &pwrc_lock);
+}
+
+void fvp_pwrc_write_pcoffr(unsigned long mpidr)
+{
+ bakery_lock_get(mpidr, &pwrc_lock);
+ mmio_write_32(PWRC_BASE + PCOFFR_OFF, (unsigned int) mpidr);
+ bakery_lock_release(mpidr, &pwrc_lock);
+}
+
+/* Nothing else to do here apart from initializing the lock */
+int fvp_pwrc_setup(void)
+{
+ bakery_lock_init(&pwrc_lock);
+ return 0;
+}
+
+
+
diff --git a/plat/fvp/drivers/pwrc/fvp_pwrc.h b/plat/fvp/drivers/pwrc/fvp_pwrc.h
new file mode 100644
index 0000000..f600a24
--- /dev/null
+++ b/plat/fvp/drivers/pwrc/fvp_pwrc.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+#ifndef __FVP_PWRC_H__
+#define __FVP_PWRC_H__
+
+/* FVP Power controller register offset etc */
+#define PPOFFR_OFF 0x0
+#define PPONR_OFF 0x4
+#define PCOFFR_OFF 0x8
+#define PWKUPR_OFF 0xc
+#define PSYSR_OFF 0x10
+
+#define PWKUPR_WEN (1ull << 31)
+
+#define PSYSR_AFF_L2 (1 << 31)
+#define PSYSR_AFF_L1 (1 << 30)
+#define PSYSR_AFF_L0 (1 << 29)
+#define PSYSR_WEN (1 << 28)
+#define PSYSR_PC (1 << 27)
+#define PSYSR_PP (1 << 26)
+
+#define PSYSR_WK_SHIFT 24
+#define PSYSR_WK_MASK 0x3
+#define PSYSR_WK(x) (x >> PSYSR_WK_SHIFT) & PSYSR_WK_MASK
+
+#define WKUP_COLD 0x0
+#define WKUP_RESET 0x1
+#define WKUP_PPONR 0x2
+#define WKUP_GICREQ 0x3
+
+#define PSYSR_INVALID 0xffffffff
+
+#ifndef __ASSEMBLY__
+
+/*******************************************************************************
+ * Function & variable prototypes
+ ******************************************************************************/
+extern int fvp_pwrc_setup(void);
+extern void fvp_pwrc_write_pcoffr(unsigned long);
+extern void fvp_pwrc_write_ppoffr(unsigned long);
+extern void fvp_pwrc_write_pponr(unsigned long);
+extern void fvp_pwrc_set_wen(unsigned long);
+extern void fvp_pwrc_clr_wen(unsigned long);
+extern unsigned int fvp_pwrc_read_psysr(unsigned long);
+extern unsigned int fvp_pwrc_get_cpu_wkr(unsigned long);
+
+#endif /*__ASSEMBLY__*/
+
+#endif /* __FVP_PWRC_H__ */
diff --git a/plat/fvp/plat_pm.c b/plat/fvp/plat_pm.c
index 7b51476..2a414c9 100644
--- a/plat/fvp/plat_pm.c
+++ b/plat/fvp/plat_pm.c
@@ -39,9 +39,9 @@
#include <bakery_lock.h>
#include <cci400.h>
#include <gic.h>
-#include <fvp_pwrc.h>
/* Only included for error codes */
#include <psci.h>
+#include "drivers/pwrc/fvp_pwrc.h"
/*******************************************************************************
* FVP handler called when an affinity instance is about to enter standby.
diff --git a/plat/fvp/plat_topology.c b/plat/fvp/plat_topology.c
index 0c8c525..765077e 100644
--- a/plat/fvp/plat_topology.c
+++ b/plat/fvp/plat_topology.c
@@ -31,9 +31,9 @@
#include <string.h>
#include <assert.h>
#include <platform.h>
-#include <fvp_pwrc.h>
/* TODO: Reusing psci error codes & state information. Get our own! */
#include <psci.h>
+#include "drivers/pwrc/fvp_pwrc.h"
/* We treat '255' as an invalid affinity instance */
#define AFFINST_INVAL 0xff
diff --git a/plat/fvp/platform.mk b/plat/fvp/platform.mk
index 2b904ee..f55000d 100644
--- a/plat/fvp/platform.mk
+++ b/plat/fvp/platform.mk
@@ -57,8 +57,8 @@ PLAT_BL31_C_VPATH := drivers/arm/cci-400 \
lib/${ARCH} \
lib/semihosting \
lib/stdlib \
- drivers/power \
- drivers/io
+ drivers/io \
+ plat/fvp/drivers/pwrc
PLAT_BL31_S_VPATH := lib/semihosting/${ARCH}