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Message-Id: <dbab65547b41b82719df19067b50db9c82eeb6d6.1259893118.git.amit.kucheria@canonical.com>
Date: Fri, 4 Dec 2009 04:47:08 +0200
From: Amit Kucheria <amit.kucheria@...onical.com>
To: List Linux Kernel <linux-kernel@...r.kernel.org>
Cc: Dinh Nguyen <Dinh.Nguyen@...escale.com>,
linux-arm-kernel@...ts.infradead.org, s.hauer@...gutronix.de,
valentin.longchamp@...l.ch, daniel@...aq.de,
grant.likely@...retlab.ca, r.herring@...escale.com
Subject: [RFC][PATCH 08/10] arm: mxc: Add IO multiplexing support for FEC
From: Dinh Nguyen <Dinh.Nguyen@...escale.com>
Setup correct multiplexing in order to use the FEC ethernet device on the
Babbage board.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@...escale.com>
Signed-off-by: Amit Kucheria <amit.kucheria@...onical.com>
---
arch/arm/mach-mx5/board-mx51_babbage.c | 43 +++++++++++++++++++++++++++++
arch/arm/plat-mxc/include/mach/iomux-v3.h | 8 +++++
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index a1bc9c4..cefcb90 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/arch/arm/mach-mx5/board-mx51_babbage.c
@@ -33,6 +33,8 @@ extern void __init mx51_babbage_io_init(void);
#define MX51_UART2_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST)
#define MX51_UART3_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST)
+#define MX51_FEC_PAD_CTRL (PAD_CTL_DRV_VOT_HIGH | PAD_CTL_DRV_HIGH)
+
/* UART1 */
#define MX51_BABBAGE_PAD_UART1_RXD__UART1_RXD IOMUX_PAD(0x618, 0x228, IOMUX_CONFIG_ALT0, 0x9e4, 0, MX51_UART1_PAD_CTRL | PAD_CTL_SRE_FAST)
#define MX51_BABBAGE_PAD_UART1_TXD__UART1_TXD IOMUX_PAD(0x61C, 0x22C, IOMUX_CONFIG_ALT0, 0x0, 0, MX51_UART1_PAD_CTRL | PAD_CTL_SRE_FAST)
@@ -52,6 +54,28 @@ extern void __init mx51_babbage_io_init(void);
#define MX51_BABBAGE_PAD_GPIO_1_8__GPIO1_8 IOMUX_PAD(0x814, 0x3E8, 0, 0x0, 1, (PAD_CTL_SRE_SLOW | PAD_CTL_DSE_MED | PAD_CTL_PUS_100K_UP | PAD_CTL_HYS))
+/* FEC */
+#define MX51_BABBAGE_PAD_EIM_EB2__MDIO IOMUX_PAD(0x468, 0x0d4, IOMUX_CONFIG_ALT3, 0x954, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_CS3__MDC IOMUX_PAD(0x524, 0x13C, IOMUX_CONFIG_ALT2, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_EIM_CS3__RDATA3 IOMUX_PAD(0x480, 0x0ec, IOMUX_CONFIG_ALT3, 0x964, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_EIM_CS2__RDATA2 IOMUX_PAD(0x47c, 0x0e8, IOMUX_CONFIG_ALT3, 0x960, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_EIM_EB3__RDATA1 IOMUX_PAD(0x46c, 0x0d8, IOMUX_CONFIG_ALT3, 0x95c, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_RB6__RDATA0 IOMUX_PAD(0x5DC, 0x134, IOMUX_CONFIG_ALT1, 0x958, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_D11__RX_DV IOMUX_PAD(0x54C, 0x164, IOMUX_CONFIG_ALT2, 0x96c, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_RB3__RX_CLK IOMUX_PAD(0x504, 0x128, IOMUX_CONFIG_ALT1, 0x968, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_EIM_CS4__RX_ER IOMUX_PAD(0x484, 0x0f0, IOMUX_CONFIG_ALT3, 0x970, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_RDY_INT__TX_CLK IOMUX_PAD(0x538, 0x150, IOMUX_CONFIG_ALT1, 0x974, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_CS7__TX_EN IOMUX_PAD(0x534, 0x14C, IOMUX_CONFIG_ALT1, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_D8__TDATA0 IOMUX_PAD(0x558, 0x170, IOMUX_CONFIG_ALT2, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_CS4__TDATA1 IOMUX_PAD(0x528, 0x140, IOMUX_CONFIG_ALT2, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_CS5__TDATA2 IOMUX_PAD(0x52C, 0x144, IOMUX_CONFIG_ALT2, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_CS6__TDATA3 IOMUX_PAD(0x530, 0x148, IOMUX_CONFIG_ALT2, 0x0, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_NANDF_RB2__COL IOMUX_PAD(0x500, 0x124, IOMUX_CONFIG_ALT1, 0x94c, 0, MX51_FEC_PAD_CTRL)
+#define MX51_BABBAGE_PAD_EIM_CS5__CRS IOMUX_PAD(0x52C, 0x144, IOMUX_CONFIG_ALT3, 0x950, 0, MX51_FEC_PAD_CTRL)
+
+
+
+
static struct platform_device *devices[] __initdata = {
&mxc_fec_device,
};
@@ -72,6 +96,25 @@ static struct pad_desc mx51babbage_pads[] = {
MX51_BABBAGE_PAD_EIM_D26__UART3_TXD,
MX51_BABBAGE_PAD_EIM_D27__UART3_RTS,
MX51_BABBAGE_PAD_EIM_D24__UART3_CTS,
+
+ /* FEC */
+ MX51_BABBAGE_PAD_EIM_EB2__MDIO,
+ MX51_BABBAGE_PAD_NANDF_CS3__MDC,
+ MX51_BABBAGE_PAD_EIM_CS3__RDATA3,
+ MX51_BABBAGE_PAD_EIM_CS2__RDATA2,
+ MX51_BABBAGE_PAD_EIM_EB3__RDATA1,
+ MX51_BABBAGE_PAD_NANDF_RB6__RDATA0,
+ MX51_BABBAGE_PAD_NANDF_D11__RX_DV,
+ MX51_BABBAGE_PAD_NANDF_RB3__RX_CLK,
+ MX51_BABBAGE_PAD_EIM_CS4__RX_ER,
+ MX51_BABBAGE_PAD_NANDF_RDY_INT__TX_CLK,
+ MX51_BABBAGE_PAD_NANDF_CS7__TX_EN,
+ MX51_BABBAGE_PAD_NANDF_D8__TDATA0,
+ MX51_BABBAGE_PAD_NANDF_CS4__TDATA1,
+ MX51_BABBAGE_PAD_NANDF_CS5__TDATA2,
+ MX51_BABBAGE_PAD_NANDF_CS6__TDATA3,
+ MX51_BABBAGE_PAD_NANDF_RB2__COL,
+ MX51_BABBAGE_PAD_EIM_CS5__CRS ,
};
/* Serial ports */
diff --git a/arch/arm/plat-mxc/include/mach/iomux-v3.h b/arch/arm/plat-mxc/include/mach/iomux-v3.h
index 8c351d6..78c71f0 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-v3.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-v3.h
@@ -89,6 +89,14 @@ struct pad_desc {
#define PAD_CTL_SRE_FAST (1 << 0)
#define PAD_CTL_SRE_SLOW (0 << 0)
+#define PAD_CTL_DRV_LOW (0 << 1)
+#define PAD_CTL_DRV_MEDIUM (1 << 1)
+#define PAD_CTL_DRV_HIGH (2 << 1)
+#define PAD_CTL_DRV_MAX (3 << 1)
+
+#define PAD_CTL_DRV_VOT_LOW (0 << 13)
+#define PAD_CTL_DRV_VOT_HIGH (1 << 13)
+
/*
* setups a single pad:
* - reserves the pad so that it is not claimed by another driver
--
1.6.3.3
--
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