0510c8a014
This is a first attempt to support the km_kirkwood reference design with a device tree. This km_kirkwood design is present in many Keymile products. It is based on the Marvell Bobcat SOC which integrates a Kirkwood CPU next to a big L2 Ethernet Switch. The Kirkwood in the SOC is very similar to the "normal" one, but there are a few differences. This initial support is minimal: the kernel can boot with network (ge0), serial port and NAND functional. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> Cc: Holger Brunck <holger.brunck@keymile.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* Copyright 2012 2012 KEYMILE AG, CH-3097 Bern
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* Valentin Longchamp <valentin.longchamp@keymile.com>
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*
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* arch/arm/mach-kirkwood/board-km_kirkwood.c
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*
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* Keymile km_kirkwood Reference Desing Init for drivers not converted to
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* flattened device tree yet.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/clk.h>
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#include <linux/clk-private.h>
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#include "common.h"
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#include "mpp.h"
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static struct mv643xx_eth_platform_data km_kirkwood_ge00_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(0),
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};
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static unsigned int km_kirkwood_mpp_config[] __initdata = {
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MPP8_GPIO, /* I2C SDA */
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MPP9_GPIO, /* I2C SCL */
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0
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};
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void __init km_kirkwood_init(void)
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{
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struct clk *sata_clk;
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/*
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* Basic setup. Needs to be called early.
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*/
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kirkwood_mpp_conf(km_kirkwood_mpp_config);
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/*
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* Our variant of kirkwood (integrated in the Bobcat) hangs on accessing
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* SATA bits (14-15) of the Clock Gating Control Register. Since these
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* devices are also not present in this variant, their clocks get
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* disabled because unused when clk_disable_unused() gets called.
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* That's why we change the flags to these clocks to CLK_IGNORE_UNUSED
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*/
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sata_clk = clk_get_sys("sata_mv.0", "0");
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if (!IS_ERR(sata_clk))
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sata_clk->flags |= CLK_IGNORE_UNUSED;
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sata_clk = clk_get_sys("sata_mv.0", "1");
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if (!IS_ERR(sata_clk))
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sata_clk->flags |= CLK_IGNORE_UNUSED;
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kirkwood_ehci_init();
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kirkwood_ge00_init(&km_kirkwood_ge00_data);
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}
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