mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-03 11:06:42 +07:00
7179380ee9
Not every alchemy-based board might want these options forced on it, and most of this stuff seems to be intended for devboard code anyway. Remove commandline mangling code out of common chip code and instead add relevant sections to all in-tree boards to not change existing behaviour. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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*
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* BRIEF MODULE DESCRIPTION
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* 4G Systems MTX-1 board setup.
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*
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* Copyright 2003, 2008 MontaVista Software Inc.
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* Author: MontaVista Software, Inc. <source@mvista.com>
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* Bruno Randolf <bruno.randolf@4g-systems.biz>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <prom.h>
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extern int (*board_pci_idsel)(unsigned int devsel, int assert);
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int mtx1_pci_idsel(unsigned int devsel, int assert);
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void board_reset(void)
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{
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/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
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au_writel(0x00000000, 0xAE00001C);
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}
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void __init board_setup(void)
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{
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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char *argptr;
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argptr = prom_getcmdline();
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argptr = strstr(argptr, "console=");
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if (argptr == NULL) {
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argptr = prom_getcmdline();
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strcat(argptr, " console=ttyS0,115200");
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}
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#endif
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#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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/* Enable USB power switch */
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au_writel(au_readl(GPIO2_DIR) | 0x10, GPIO2_DIR);
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au_writel(0x100000, GPIO2_OUTPUT);
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#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
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#ifdef CONFIG_PCI
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#if defined(__MIPSEB__)
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au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
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#else
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au_writel(0xf, Au1500_PCI_CFG);
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#endif
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#endif
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/* Initialize sys_pinfunc */
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au_writel(SYS_PF_NI2, SYS_PINFUNC);
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/* Initialize GPIO */
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au_writel(0xFFFFFFFF, SYS_TRIOUTCLR);
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au_writel(0x00000001, SYS_OUTPUTCLR); /* set M66EN (PCI 66MHz) to OFF */
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au_writel(0x00000008, SYS_OUTPUTSET); /* set PCI CLKRUN# to OFF */
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au_writel(0x00000002, SYS_OUTPUTSET); /* set EXT_IO3 ON */
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au_writel(0x00000020, SYS_OUTPUTCLR); /* set eth PHY TX_ER to OFF */
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/* Enable LED and set it to green */
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au_writel(au_readl(GPIO2_DIR) | 0x1800, GPIO2_DIR);
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au_writel(0x18000800, GPIO2_OUTPUT);
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board_pci_idsel = mtx1_pci_idsel;
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printk(KERN_INFO "4G Systems MTX-1 Board\n");
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}
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int
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mtx1_pci_idsel(unsigned int devsel, int assert)
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{
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#define MTX_IDSEL_ONLY_0_AND_3 0
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#if MTX_IDSEL_ONLY_0_AND_3
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if (devsel != 0 && devsel != 3) {
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printk(KERN_ERR "*** not 0 or 3\n");
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return 0;
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}
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#endif
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if (assert && devsel != 0)
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/* Suppress signal to Cardbus */
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au_writel(0x00000002, SYS_OUTPUTCLR); /* set EXT_IO3 OFF */
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else
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au_writel(0x00000002, SYS_OUTPUTSET); /* set EXT_IO3 ON */
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au_sync_udelay(1);
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return 1;
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}
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