0c02c8007e
The OF irq handling code has been overloading the term 'map' to refer to both parsing the data in the device tree and mapping it to the internal linux irq system. This is probably because the device tree does have the concept of an 'interrupt-map' function for translating interrupt references from one node to another, but 'map' is still confusing when the primary purpose of some of the functions are to parse the DT data. This patch renames all the of_irq_map_* functions to of_irq_parse_* which makes it clear that there is a difference between the parsing phase and the mapping phase. Kernel code can make use of just the parsing or just the mapping support as needed by the subsystem. The patch was generated mechanically with a handful of sed commands. Signed-off-by: Grant Likely <grant.likely@linaro.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/*
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* setup serial port in SCC
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*
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* (C) Copyright 2006-2007 TOSHIBA CORPORATION
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <linux/console.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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/* sio irq0=0xb00010022 irq0=0xb00010023 irq2=0xb00010024
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mmio=0xfff000-0x1000,0xff2000-0x1000 */
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static int txx9_serial_bitmap __initdata;
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static struct {
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uint32_t offset;
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uint32_t index;
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} txx9_scc_tab[3] __initdata = {
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{ 0x300, 0 }, /* 0xFFF300 */
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{ 0x400, 0 }, /* 0xFFF400 */
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{ 0x800, 1 } /* 0xFF2800 */
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};
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static int __init txx9_serial_init(void)
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{
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extern int early_serial_txx9_setup(struct uart_port *port);
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struct device_node *node;
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int i;
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struct uart_port req;
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struct of_irq irq;
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struct resource res;
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for_each_compatible_node(node, "serial", "toshiba,sio-scc") {
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for (i = 0; i < ARRAY_SIZE(txx9_scc_tab); i++) {
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if (!(txx9_serial_bitmap & (1<<i)))
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continue;
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if (of_irq_parse_one(node, i, &irq))
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continue;
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if (of_address_to_resource(node,
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txx9_scc_tab[i].index, &res))
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continue;
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memset(&req, 0, sizeof(req));
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req.line = i;
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req.iotype = UPIO_MEM;
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req.mapbase = res.start + txx9_scc_tab[i].offset;
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#ifdef CONFIG_SERIAL_TXX9_CONSOLE
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req.membase = ioremap(req.mapbase, 0x24);
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#endif
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req.irq = irq_create_of_mapping(irq.controller,
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irq.specifier, irq.size);
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req.flags |= UPF_IOREMAP | UPF_BUGGY_UART
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/*HAVE_CTS_LINE*/;
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req.uartclk = 83300000;
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early_serial_txx9_setup(&req);
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}
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}
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return 0;
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}
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static int __init txx9_serial_config(char *ptr)
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{
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int i;
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for (;;) {
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switch (get_option(&ptr, &i)) {
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default:
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return 0;
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case 2:
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txx9_serial_bitmap |= 1 << i;
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break;
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case 1:
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txx9_serial_bitmap |= 1 << i;
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return 0;
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}
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}
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}
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__setup("txx9_serial=", txx9_serial_config);
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console_initcall(txx9_serial_init);
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