This patch series adds preliminary support for booting Qualcomm MSM8917.
Specifically, it includes carving out reserved memory regions (no-map) at
early init to avoid security violations, A Global Clock Controller (GCC)
driver providing essential clocks, resets, and GDSCs needed for U-Boot and
a pinctrl driver to configure pin parameters and manage GPIOs.
This patch series depends on the GDSC flags series by Luca Weiss and
Alexey Minnekhanov [1], specifically patch 4/4 ("clk/qcom: Treat different
GDSCs differently") [2]. On MSM8917, MDSS_GDSC does not have POLL_CFG_GDSCR
and requires polling the GDSCR register directly instead of CFG_GDSCR,
which is addressed by [2].
Changes in v3:
- Drop "clk: qcom: Add an option to poll for GDSCR GDSC_POWER_ON bit"
in favor of Alexey Minnekhanov's series [1] / [2].
- Update MDSS_GDSC in clock-msm8917 to comply with the new 'flags'
member in struct qcom_power_map introduced by [2].
Changes in v2:
- Change license to GPL-2.0-only
- Mention the source of the ported code
- Add error check for out-of-range pin selector
- Use macros for RCGR address constants
v2: https://lore.kernel.org/u-boot/[email protected]
v1: https://lore.kernel.org/u-boot/[email protected]
1:
https://lore.kernel.org/u-boot/[email protected]
2:
https://lore.kernel.org/u-boot/[email protected]
---
Reza Kurniawan (3):
mach-snapdragon: Carve out reserved memory at init for MSM8917
clk: qcom: Add Global Clock Controller (GCC) driver for MSM8917
pinctrl: qcom: Add pinctrl driver for MSM8917
arch/arm/mach-snapdragon/mem_map.c | 3 +-
configs/qcom_defconfig | 1 +
drivers/clk/qcom/Kconfig | 8 +
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/clock-msm8917.c | 210 +++++++++++
drivers/pinctrl/qcom/Kconfig | 8 +
drivers/pinctrl/qcom/Makefile | 1 +
drivers/pinctrl/qcom/pinctrl-msm8917.c | 645 +++++++++++++++++++++++++++++++++
8 files changed, 876 insertions(+), 1 deletion(-)
---
base-commit: d27c992cebb95bd903d09f3d1da55032a7a145da
change-id: 20260915-msm8917-support-e56f0d21881b
prerequisite-message-id: <[email protected]>
prerequisite-patch-id: a1b270485786a326cb40fda882935fcc0fbf3bba
prerequisite-patch-id: 1d4a1450016d914394cf6a7e24ec9e5bc12fe80a
prerequisite-patch-id: 568826d73bd992c6ff16681ad33e6891e25af5f5
prerequisite-patch-id: bad5df259c02085a5aa51d130459ae1eecd0f638
Best regards,
--
Reza Kurniawan <[email protected]>
