[PATCH 08/13] ARM: imx35: Retrieve the IIM base address from devicetree
flat view
STALE2213d
SUPERSEDED
From: Fabio Estevam <festevam@gmail.com>
Date: 2020-09-16 20:58:45
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v2 [diff vs current]
Now that imx35 has been converted to a devicetree-only platform, retrieve the IIM base address from devicetree. Signed-off-by: Fabio Estevam <festevam@gmail.com> --- arch/arm/mach-imx/cpu-imx35.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/cpu-imx35.c b/arch/arm/mach-imx/cpu-imx35.c
index ebb3cdabd506..80e7d8ab9f1b 100644
--- a/arch/arm/mach-imx/cpu-imx35.c
+++ b/arch/arm/mach-imx/cpu-imx35.c@@ -5,6 +5,7 @@ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> */ #include <linux/module.h> +#include <linux/of_address.h> #include <linux/io.h> #include "hardware.h"
@@ -14,9 +15,15 @@ static int mx35_cpu_rev = -1; static int mx35_read_cpu_rev(void) { + void __iomem *iim_base; + struct device_node *np; u32 rev; - rev = imx_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV)); + np = of_find_compatible_node(NULL, NULL, "fsl,imx35-iim"); + iim_base = of_iomap(np, 0); + BUG_ON(!iim_base); + + rev = imx_readl(iim_base + MXC_IIMSREV); switch (rev) { case 0x00: return IMX_CHIP_REVISION_1_0;
--
2.17.1
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