From: Fabio Estevam <festevam@gmail.com>
To: shawnguo@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
Fabio Estevam <festevam@gmail.com>,
arnd@arndb.de, linux-imx@nxp.com, kernel@pengutronix.de
Subject: [PATCH v2 03/11] ARM: imx31: Retrieve the IIM base address from devicetree
Date: Wed, 16 Sep 2020 21:41:17 -0300 [thread overview]
Message-ID: <20200917004125.18487-4-festevam@gmail.com> (raw)
In-Reply-To: <20200917004125.18487-1-festevam@gmail.com>
Now that imx31 has been converted to a devicetree-only platform,
retrieve the IIM base address from devicetree.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Chamges since v1:
- None
arch/arm/mach-imx/cpu-imx31.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/cpu-imx31.c b/arch/arm/mach-imx/cpu-imx31.c
index 3ee684b71006..b9c24b851d1a 100644
--- a/arch/arm/mach-imx/cpu-imx31.c
+++ b/arch/arm/mach-imx/cpu-imx31.c
@@ -6,6 +6,7 @@
*/
#include <linux/module.h>
+#include <linux/of_address.h>
#include <linux/io.h>
#include "common.h"
@@ -32,10 +33,16 @@ static struct {
static int mx31_read_cpu_rev(void)
{
+ void __iomem *iim_base;
+ struct device_node *np;
u32 i, srev;
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx31-iim");
+ iim_base = of_iomap(np, 0);
+ BUG_ON(!iim_base);
+
/* read SREV register from IIM module */
- srev = imx_readl(MX31_IO_ADDRESS(MX31_IIM_BASE_ADDR + MXC_IIMSREV));
+ srev = imx_readl(iim_base + MXC_IIMSREV);
srev &= 0xff;
for (i = 0; i < ARRAY_SIZE(mx31_cpu_type); i++)
--
2.17.1
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next prev parent reply other threads:[~2020-09-17 0:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 0:41 [PATCH v2 00/11] ARM: imx: Further cleanups due to dt-only conversion Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 01/11] ARM: imx27: Retrieve the SYSCTRL base address from devicetree Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 02/11] ARM: imx27: Retrieve the CCM " Fabio Estevam
2020-09-17 0:41 ` Fabio Estevam [this message]
2020-09-17 0:41 ` [PATCH v2 04/11] ARM: imx3: " Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 05/11] ARM: imx3: Retrieve the AVIC " Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 06/11] ARM: imx35: Retrieve the IIM " Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 07/11] ARM: imx: Remove unused definitions Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 08/11] clk: imx: imx27: Remove mx27_clocks_init() Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 09/11] clk: imx: imx31: Remove mx31_clocks_init() Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 10/11] clk: imx: imx35: Remove mx35_clocks_init() Fabio Estevam
2020-09-17 0:41 ` [PATCH v2 11/11] clk: imx: imx21: Remove clock driver Fabio Estevam
2020-09-17 8:12 ` [PATCH v2 00/11] ARM: imx: Further cleanups due to dt-only conversion Arnd Bergmann
2020-09-22 6:09 ` Shawn Guo
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