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09d40e0e08
Enforce full include path for includes. Deprecate old paths.
The following folders inside include/lib have been left unchanged:
- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}
The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).
For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.
Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <drivers/delay_timer.h>
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#include <lib/mmio.h>
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uintptr_t sp804_base_addr;
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#define SP804_TIMER1_LOAD (sp804_base_addr + 0x000)
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#define SP804_TIMER1_VALUE (sp804_base_addr + 0x004)
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#define SP804_TIMER1_CONTROL (sp804_base_addr + 0x008)
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#define SP804_TIMER1_BGLOAD (sp804_base_addr + 0x018)
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#define TIMER_CTRL_ONESHOT (1 << 0)
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#define TIMER_CTRL_32BIT (1 << 1)
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#define TIMER_CTRL_DIV1 (0 << 2)
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#define TIMER_CTRL_DIV16 (1 << 2)
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#define TIMER_CTRL_DIV256 (2 << 2)
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#define TIMER_CTRL_IE (1 << 5)
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#define TIMER_CTRL_PERIODIC (1 << 6)
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#define TIMER_CTRL_ENABLE (1 << 7)
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/********************************************************************
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* The SP804 timer delay function
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********************************************************************/
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uint32_t sp804_get_timer_value(void)
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{
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return mmio_read_32(SP804_TIMER1_VALUE);
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}
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/********************************************************************
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* Initialize the 1st timer in the SP804 dual timer with a base
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* address and a timer ops
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********************************************************************/
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void sp804_timer_ops_init(uintptr_t base_addr, const timer_ops_t *ops)
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{
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assert(base_addr != 0);
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assert(ops != 0 && ops->get_timer_value == sp804_get_timer_value);
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sp804_base_addr = base_addr;
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timer_init(ops);
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/* disable timer1 */
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mmio_write_32(SP804_TIMER1_CONTROL, 0);
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mmio_write_32(SP804_TIMER1_LOAD, UINT32_MAX);
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mmio_write_32(SP804_TIMER1_VALUE, UINT32_MAX);
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/* enable as a free running 32-bit counter */
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mmio_write_32(SP804_TIMER1_CONTROL,
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TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE);
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}
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