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MT8183 only allows booting from eMMC, so we have to do eMMC emulation
from an external source, for example EC, which makes the size of
bootblock very important.
This CL adds a new function mt8183_early_init, which includes all
initializations that should be done in early stages. All mainboards
using MT8183 should manually call it in either bootblock or verstage.
BRANCH=none
BUG=b:120588396
TEST=manually boot into kernel
Change-Id: I35d7ab875395da913b967ae1f7b72359be3e744a
Signed-off-by: You-Cheng Syu <youcheng@google.com>
Reviewed-on: https://review.coreboot.org/c/31024
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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Since we move mtk_mmu_init() from bootblock to decompressor, we don't
need to build mmu_opertations.c in bootblock and we don't need to
include <soc/mmu_operations.h> in bootblock.c.
BUG=b:80501386
TEST=manually flashed into kukui and boots into romstage.
Change-Id: I58f97ac1705e4dfde5e2d497d9bec33a1d8d17c2
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27655
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
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MT8183 only allows booting from eMMC, so we have to do eMMC emulation
from an external source, for example EC, which makes the size of
bootblock very important.
A fully functional bootblock (that can boot into verstage or romstage)
is about 38000 bytes. If self decompression (CONFIG_COMPRESS_BOOTBLOCK)
is enabled, only 25088 (66%) bytes are needed.
Inspired from crosreview.com/1070018.
BUG=b:80501386
TEST=manually flashed into kukui and boots into romstage.
Change-Id: I7a739866a4ea3bcafe2ff7b9e88d5ed00f3f3e40
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/27599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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Add PLL and clock init code.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui. Checked with frequency meter in SOC.
Change-Id: I1f561f66bcf12de6a95c2f64eecd9508bd9bb26c
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Reviewed-on: https://review.coreboot.org/27031
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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Enable MMU in bootblock for performance, link common code to provide
mtk_mmu_after_dram() to update MMU table in romstage after dram ready,
implement mtk_soc_disable_l2c_sram(), and call
mtk_mmu_disable_l2c_sram() to turn off L2C sram in ramstage.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui.
Change-Id: I4e35f8276ca23de7fd13da3515b9f48d944ead32
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27303
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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Using common watchdog timer (WDT) code for reset. Set up watchdog timer
in mtk_wdt_init() to get reset status and disable auto-reboot. Link
common do_hard_reset() to support hard reset.
BUG=b:80501386
BRANCH=none
TEST=both mtk_wdt_init() and do_hard_reset() work on Kukui.
Change-Id: I4be3a133dbb8a64604133cefb0c5f02d01afd0d4
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27026
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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