From: Angelo Dureghello <angelo@kernel-space.org>
To: gerg@linux-m68k.org, wg@grandegger.com, mkl@pengutronix.de
Cc: geert@linux-m68k.org, linux-m68k@vger.kernel.org,
linux-can@vger.kernel.org, qiangqing.zhang@nxp.com,
Angelo Dureghello <angelo@kernel-space.org>
Subject: [PATCH 3/5] m68k: m5441x: add flexcan support
Date: Tue, 8 Jun 2021 22:45:40 +0200 [thread overview]
Message-ID: <20210608204542.983925-3-angelo@kernel-space.org> (raw)
In-Reply-To: <20210608204542.983925-1-angelo@kernel-space.org>
Add flexcan support.
Signed-off-by: Angelo Dureghello <angelo@kernel-space.org>
---
arch/m68k/coldfire/device.c | 31 +++++++++++++++++++++++++++++++
arch/m68k/coldfire/m5441x.c | 8 ++++----
arch/m68k/include/asm/m5441xsim.h | 19 +++++++++++++++++++
3 files changed, 54 insertions(+), 4 deletions(-)
diff --git a/arch/m68k/coldfire/device.c b/arch/m68k/coldfire/device.c
index 59f7dfe50a4d..b3263283bf71 100644
--- a/arch/m68k/coldfire/device.c
+++ b/arch/m68k/coldfire/device.c
@@ -23,6 +23,7 @@
#include <linux/platform_data/edma.h>
#include <linux/platform_data/dma-mcf-edma.h>
#include <linux/platform_data/mmc-esdhc-mcf.h>
+#include <linux/platform_data/flexcan-mcf.h>
/*
* All current ColdFire parts contain from 2, 3, 4 or 10 UARTS.
@@ -581,6 +582,33 @@ static struct platform_device mcf_esdhc = {
};
#endif /* MCFSDHC_BASE */
+#if IS_ENABLED(CONFIG_CAN)
+static struct mcf_flexcan_platform_data mcf_flexcan_info = {
+ .clk_src = 1,
+ .clock_frequency = 120000000,
+};
+
+static struct resource mcf_flexcan0_resource[] = {
+ {
+ .start = MCFFLEXCAN_BASE0,
+ .end = MCFFLEXCAN_BASE0 + MCFFLEXCAN_SIZE,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MCF_IRQ_IFL0,
+ .end = MCF_IRQ_ERR0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device mcf_flexcan0 = {
+ .name = "flexcan",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(mcf_flexcan0_resource),
+ .resource = mcf_flexcan0_resource,
+ .dev.platform_data = &mcf_flexcan_info,
+};
+#endif /* IS_ENABLED(CONFIG_CAN) */
+
static struct platform_device *mcf_devices[] __initdata = {
&mcf_uart,
#if IS_ENABLED(CONFIG_FEC)
@@ -616,6 +644,9 @@ static struct platform_device *mcf_devices[] __initdata = {
#ifdef MCFSDHC_BASE
&mcf_esdhc,
#endif
+#if IS_ENABLED(CONFIG_CAN)
+ &mcf_flexcan0,
+#endif
};
/*
diff --git a/arch/m68k/coldfire/m5441x.c b/arch/m68k/coldfire/m5441x.c
index 1e5259a652d1..18b152edb69c 100644
--- a/arch/m68k/coldfire/m5441x.c
+++ b/arch/m68k/coldfire/m5441x.c
@@ -18,8 +18,8 @@
#include <asm/mcfclk.h>
DEFINE_CLK(0, "flexbus", 2, MCF_CLK);
-DEFINE_CLK(0, "mcfcan.0", 8, MCF_CLK);
-DEFINE_CLK(0, "mcfcan.1", 9, MCF_CLK);
+DEFINE_CLK(0, "flexcan.0", 8, MCF_CLK);
+DEFINE_CLK(0, "flexcan.1", 9, MCF_CLK);
DEFINE_CLK(0, "imx1-i2c.1", 14, MCF_CLK);
DEFINE_CLK(0, "mcfdspi.1", 15, MCF_CLK);
DEFINE_CLK(0, "edma", 17, MCF_CLK);
@@ -146,6 +146,8 @@ struct clk *mcf_clks[] = {
static struct clk * const enable_clks[] __initconst = {
/* make sure these clocks are enabled */
+ &__clk_0_8, /* flexcan.0 */
+ &__clk_0_9, /* flexcan.1 */
&__clk_0_15, /* dspi.1 */
&__clk_0_17, /* eDMA */
&__clk_0_18, /* intc0 */
@@ -166,8 +168,6 @@ static struct clk * const enable_clks[] __initconst = {
&__clk_1_37, /* gpio */
};
static struct clk * const disable_clks[] __initconst = {
- &__clk_0_8, /* can.0 */
- &__clk_0_9, /* can.1 */
&__clk_0_14, /* i2c.1 */
&__clk_0_22, /* i2c.0 */
&__clk_0_23, /* dspi.0 */
diff --git a/arch/m68k/include/asm/m5441xsim.h b/arch/m68k/include/asm/m5441xsim.h
index e091e36d3464..f48cf63bd782 100644
--- a/arch/m68k/include/asm/m5441xsim.h
+++ b/arch/m68k/include/asm/m5441xsim.h
@@ -73,6 +73,12 @@
#define MCFINT0_FECENTC1 55
/* on interrupt controller 1 */
+#define MCFINT1_FLEXCAN0_IFL 0
+#define MCFINT1_FLEXCAN0_BOFF 1
+#define MCFINT1_FLEXCAN0_ERR 3
+#define MCFINT1_FLEXCAN1_IFL 4
+#define MCFINT1_FLEXCAN1_BOFF 5
+#define MCFINT1_FLEXCAN1_ERR 7
#define MCFINT1_UART4 48
#define MCFINT1_UART5 49
#define MCFINT1_UART6 50
@@ -314,4 +320,17 @@
#define MCF_IRQ_SDHC (MCFINT2_VECBASE + MCFINT2_SDHC)
#define MCFSDHC_CLK (MCFSDHC_BASE + 0x2c)
+/*
+ * Flexcan module
+ */
+#define MCFFLEXCAN_BASE0 0xfc020000
+#define MCFFLEXCAN_BASE1 0xfc024000
+#define MCFFLEXCAN_SIZE 0x4000
+#define MCF_IRQ_IFL0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_IFL)
+#define MCF_IRQ_BOFF0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_BOFF)
+#define MCF_IRQ_ERR0 (MCFINT1_VECBASE + MCFINT1_FLEXCAN0_ERR)
+#define MCF_IRQ_IFL1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_IFL)
+#define MCF_IRQ_BOFF1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_BOFF)
+#define MCF_IRQ_ERR1 (MCFINT1_VECBASE + MCFINT1_FLEXCAN1_ERR)
+
#endif /* m5441xsim_h */
--
2.31.1
next prev parent reply other threads:[~2021-06-08 20:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-08 20:45 [PATCH 1/5] can: flexcan: add platform data for ColdFire Angelo Dureghello
2021-06-08 20:45 ` [PATCH 2/5] m68k: stmark2: update board setup Angelo Dureghello
2021-06-08 20:45 ` Angelo Dureghello [this message]
2021-06-09 13:24 ` [PATCH 3/5] m68k: m5441x: add flexcan support Greg Ungerer
2021-06-10 7:59 ` Angelo Dureghello
2021-06-11 12:38 ` Greg Ungerer
2021-06-08 20:45 ` [PATCH 4/5] can: flexcan: enable Kconfig for ColdFire Angelo Dureghello
2021-06-08 20:45 ` [PATCH 5/5] can: flexcan: add mcf5441x support Angelo Dureghello
2021-06-09 2:05 ` Joakim Zhang
2021-06-09 8:12 ` Geert Uytterhoeven
2021-06-09 8:42 ` Angelo Dureghello
2021-06-09 13:18 ` Greg Ungerer
2021-06-09 8:35 ` Angelo Dureghello
2021-06-09 8:56 ` Marc Kleine-Budde
2021-06-09 9:05 ` Angelo Dureghello
2021-06-09 2:05 ` [PATCH 1/5] can: flexcan: add platform data for ColdFire Joakim Zhang
2021-06-09 7:57 ` Angelo Dureghello
2021-06-09 8:14 ` Geert Uytterhoeven
2021-06-09 8:56 ` Angelo Dureghello
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