[PATCH 07/26] ARM: shmobile: bockw: add pin pull-up setting for SDHI
From: Simon Horman <hidden>
Date: 2013-12-23 02:07:12
Also in:
linux-sh
Subsystem:
arm port, arm/risc-v/renesas architecture, the rest · Maintainers:
Russell King, Geert Uytterhoeven, Magnus Damm, Linus Torvalds
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> SDHI CD/WP pin needs pull-up Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <redacted> --- arch/arm/mach-shmobile/board-bockw-reference.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/arch/arm/mach-shmobile/board-bockw-reference.c b/arch/arm/mach-shmobile/board-bockw-reference.c
index c7b217d..6586f5c 100644
--- a/arch/arm/mach-shmobile/board-bockw-reference.c
+++ b/arch/arm/mach-shmobile/board-bockw-reference.c@@ -38,9 +38,13 @@ static const struct pinctrl_map bockw_pinctrl_map[] = { #define FPGA 0x18200000 #define IRQ0MR 0x30 #define COMCTLR 0x101c + +#define PFC 0xfffc0000 +#define PUPR4 0x110 static void __init bockw_init(void) { void __iomem *fpga; + void __iomem *pfc; r8a7778_clock_init(); r8a7778_init_irq_extpin_dt(1);
@@ -66,6 +70,17 @@ static void __init bockw_init(void) iounmap(fpga); } + pfc = ioremap_nocache(PFC, 0x200); + if (pfc) { + /* + * FIXME + * + * SDHI CD/WP pin needs pull-up + */ + iowrite32(ioread32(pfc + PUPR4) | (3 << 26), pfc + PUPR4); + iounmap(pfc); + } + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); }
--
1.8.4