parent
4ae75984ec
commit
445230cf78
@ -0,0 +1,76 @@ |
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/*
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* $Id$ |
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* |
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* ADM5120 minimal CLK API implementation |
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* |
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* Copyright (C) 2007 OpenWrt.org |
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* Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu> |
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* |
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* This file was based on the CLK API implementation in: |
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* arch/mips/tx4938/toshiba_rbtx4938/setup.c |
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* Copyright (C) 2000-2001 Toshiba Corporation |
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* 2003-2005 (c) MontaVista Software, Inc. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (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 |
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* along with this program; if not, write to the |
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/string.h> |
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#include <linux/module.h> |
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#include <linux/err.h> |
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#include <linux/clk.h> |
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#include <asm/mach-adm5120/adm5120_defs.h> |
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struct clk { |
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unsigned long rate; |
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}; |
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static struct clk uart_clk = { |
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.rate = ADM5120_UART_CLOCK |
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}; |
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struct clk *clk_get(struct device *dev, const char *id) |
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{ |
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if (!strcmp(id, "UARTCLK")) |
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return &uart_clk; |
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return ERR_PTR(-ENOENT); |
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} |
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EXPORT_SYMBOL(clk_get); |
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int clk_enable(struct clk *clk) |
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{ |
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return 0; |
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} |
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EXPORT_SYMBOL(clk_enable); |
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void clk_disable(struct clk *clk) |
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{ |
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} |
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EXPORT_SYMBOL(clk_disable); |
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unsigned long clk_get_rate(struct clk *clk) |
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{ |
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return clk->rate; |
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} |
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EXPORT_SYMBOL(clk_get_rate); |
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void clk_put(struct clk *clk) |
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{ |
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} |
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EXPORT_SYMBOL(clk_put); |
@ -0,0 +1,56 @@ |
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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 |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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/* DO NOT EDIT!! - this file automatically generated
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* from .s file by awk -f s2h.awk |
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*/ |
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/* Size definitions
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* Copyright (C) ARM Limited 1998. All rights reserved. |
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*/ |
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#ifndef __sizes_h |
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#define __sizes_h 1 |
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/* handy sizes */ |
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#define SZ_16 0x00000010 |
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#define SZ_256 0x00000100 |
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#define SZ_512 0x00000200 |
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#define SZ_1K 0x00000400 |
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#define SZ_4K 0x00001000 |
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#define SZ_8K 0x00002000 |
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#define SZ_16K 0x00004000 |
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#define SZ_64K 0x00010000 |
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#define SZ_128K 0x00020000 |
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#define SZ_256K 0x00040000 |
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#define SZ_512K 0x00080000 |
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#define SZ_1M 0x00100000 |
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#define SZ_2M 0x00200000 |
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#define SZ_4M 0x00400000 |
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#define SZ_8M 0x00800000 |
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#define SZ_16M 0x01000000 |
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#define SZ_32M 0x02000000 |
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#define SZ_64M 0x04000000 |
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#define SZ_128M 0x08000000 |
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#define SZ_256M 0x10000000 |
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#define SZ_512M 0x20000000 |
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#define SZ_1G 0x40000000 |
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#define SZ_2G 0x80000000 |
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#endif |
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/* END */ |
@ -0,0 +1,297 @@ |
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Index: linux/drivers/serial/amba-pl010.c
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===================================================================
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--- linux.orig/drivers/serial/amba-pl010.c
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+++ linux/drivers/serial/amba-pl010.c
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@@ -52,11 +52,10 @@
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#include <asm/io.h>
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-#define UART_NR 8
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-
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#define SERIAL_AMBA_MAJOR 204
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#define SERIAL_AMBA_MINOR 16
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-#define SERIAL_AMBA_NR UART_NR
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+#define SERIAL_AMBA_NR CONFIG_SERIAL_AMBA_PL010_NUMPORTS
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+#define SERIAL_AMBA_NAME CONFIG_SERIAL_AMBA_PL010_PORTNAME
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#define AMBA_ISR_PASS_LIMIT 256
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@@ -82,7 +81,7 @@ static void pl010_stop_tx(struct uart_po
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struct uart_amba_port *uap = (struct uart_amba_port *)port;
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unsigned int cr;
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- cr = readb(uap->port.membase + UART010_CR);
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+ cr = readl(uap->port.membase + UART010_CR);
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cr &= ~UART010_CR_TIE;
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writel(cr, uap->port.membase + UART010_CR);
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}
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@@ -92,7 +91,7 @@ static void pl010_start_tx(struct uart_p
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struct uart_amba_port *uap = (struct uart_amba_port *)port;
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unsigned int cr;
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- cr = readb(uap->port.membase + UART010_CR);
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+ cr = readl(uap->port.membase + UART010_CR);
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cr |= UART010_CR_TIE;
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writel(cr, uap->port.membase + UART010_CR);
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}
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@@ -102,7 +101,7 @@ static void pl010_stop_rx(struct uart_po
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struct uart_amba_port *uap = (struct uart_amba_port *)port;
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unsigned int cr;
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- cr = readb(uap->port.membase + UART010_CR);
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+ cr = readl(uap->port.membase + UART010_CR);
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cr &= ~(UART010_CR_RIE | UART010_CR_RTIE);
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writel(cr, uap->port.membase + UART010_CR);
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}
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@@ -112,7 +111,7 @@ static void pl010_enable_ms(struct uart_
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struct uart_amba_port *uap = (struct uart_amba_port *)port;
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unsigned int cr;
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- cr = readb(uap->port.membase + UART010_CR);
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+ cr = readl(uap->port.membase + UART010_CR);
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cr |= UART010_CR_MSIE;
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writel(cr, uap->port.membase + UART010_CR);
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}
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@@ -122,9 +121,9 @@ static void pl010_rx_chars(struct uart_a
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struct tty_struct *tty = uap->port.info->tty;
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unsigned int status, ch, flag, rsr, max_count = 256;
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- status = readb(uap->port.membase + UART01x_FR);
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+ status = readl(uap->port.membase + UART01x_FR);
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while (UART_RX_DATA(status) && max_count--) {
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- ch = readb(uap->port.membase + UART01x_DR);
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+ ch = readl(uap->port.membase + UART01x_DR);
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flag = TTY_NORMAL;
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uap->port.icount.rx++;
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@@ -133,7 +132,7 @@ static void pl010_rx_chars(struct uart_a
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* Note that the error handling code is
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* out of the main execution path
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*/
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- rsr = readb(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
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+ rsr = readl(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
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if (unlikely(rsr & UART01x_RSR_ANY)) {
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writel(0, uap->port.membase + UART01x_ECR);
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@@ -165,7 +164,7 @@ static void pl010_rx_chars(struct uart_a
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uart_insert_char(&uap->port, rsr, UART01x_RSR_OE, ch, flag);
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ignore_char:
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- status = readb(uap->port.membase + UART01x_FR);
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+ status = readl(uap->port.membase + UART01x_FR);
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}
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spin_unlock(&uap->port.lock);
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tty_flip_buffer_push(tty);
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@@ -210,7 +209,7 @@ static void pl010_modem_status(struct ua
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writel(0, uap->port.membase + UART010_ICR);
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- status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
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+ status = readl(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
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delta = status ^ uap->old_status;
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uap->old_status = status;
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@@ -238,7 +237,7 @@ static irqreturn_t pl010_int(int irq, vo
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spin_lock(&uap->port.lock);
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- status = readb(uap->port.membase + UART010_IIR);
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+ status = readl(uap->port.membase + UART010_IIR);
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if (status) {
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do {
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if (status & (UART010_IIR_RTIS | UART010_IIR_RIS))
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@@ -251,7 +250,7 @@ static irqreturn_t pl010_int(int irq, vo
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if (pass_counter-- == 0)
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break;
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- status = readb(uap->port.membase + UART010_IIR);
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+ status = readl(uap->port.membase + UART010_IIR);
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} while (status & (UART010_IIR_RTIS | UART010_IIR_RIS |
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UART010_IIR_TIS));
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handled = 1;
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@@ -265,7 +264,7 @@ static irqreturn_t pl010_int(int irq, vo
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static unsigned int pl010_tx_empty(struct uart_port *port)
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{
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struct uart_amba_port *uap = (struct uart_amba_port *)port;
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- unsigned int status = readb(uap->port.membase + UART01x_FR);
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+ unsigned int status = readl(uap->port.membase + UART01x_FR);
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return status & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT;
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}
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@@ -275,7 +274,7 @@ static unsigned int pl010_get_mctrl(stru
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unsigned int result = 0;
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unsigned int status;
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- status = readb(uap->port.membase + UART01x_FR);
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+ status = readl(uap->port.membase + UART01x_FR);
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if (status & UART01x_FR_DCD)
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result |= TIOCM_CAR;
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if (status & UART01x_FR_DSR)
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@@ -301,7 +300,7 @@ static void pl010_break_ctl(struct uart_
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unsigned int lcr_h;
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spin_lock_irqsave(&uap->port.lock, flags);
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- lcr_h = readb(uap->port.membase + UART010_LCRH);
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+ lcr_h = readl(uap->port.membase + UART010_LCRH);
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if (break_state == -1)
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lcr_h |= UART01x_LCRH_BRK;
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else
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@@ -334,7 +333,7 @@ static int pl010_startup(struct uart_por
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/*
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* initialise the old status of the modem signals
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*/
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- uap->old_status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
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+ uap->old_status = readl(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY;
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/*
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* Finally, enable interrupts
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@@ -365,7 +364,7 @@ static void pl010_shutdown(struct uart_p
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writel(0, uap->port.membase + UART010_CR);
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/* disable break condition and fifos */
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- writel(readb(uap->port.membase + UART010_LCRH) &
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+ writel(readl(uap->port.membase + UART010_LCRH) &
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~(UART01x_LCRH_BRK | UART01x_LCRH_FEN),
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uap->port.membase + UART010_LCRH);
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@@ -387,7 +386,7 @@ pl010_set_termios(struct uart_port *port
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/*
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* Ask the core to calculate the divisor for us.
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*/
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- baud = uart_get_baud_rate(port, termios, old, 0, uap->port.uartclk/16);
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+ baud = uart_get_baud_rate(port, termios, old, 0, uap->port.uartclk/16);
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quot = uart_get_divisor(port, baud);
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switch (termios->c_cflag & CSIZE) {
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@@ -450,7 +449,7 @@ pl010_set_termios(struct uart_port *port
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uap->port.ignore_status_mask |= UART_DUMMY_RSR_RX;
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/* first, disable everything */
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- old_cr = readb(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
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+ old_cr = readl(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
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if (UART_ENABLE_MS(port, termios->c_cflag))
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old_cr |= UART010_CR_MSIE;
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@@ -540,7 +539,7 @@ static struct uart_ops amba_pl010_pops =
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.verify_port = pl010_verify_port,
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};
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-static struct uart_amba_port *amba_ports[UART_NR];
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+static struct uart_amba_port *amba_ports[SERIAL_AMBA_NR];
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#ifdef CONFIG_SERIAL_AMBA_PL010_CONSOLE
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@@ -550,7 +549,7 @@ static void pl010_console_putchar(struct
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unsigned int status;
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do {
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- status = readb(uap->port.membase + UART01x_FR);
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+ status = readl(uap->port.membase + UART01x_FR);
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barrier();
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} while (!UART_TX_READY(status));
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writel(ch, uap->port.membase + UART01x_DR);
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@@ -567,7 +566,7 @@ pl010_console_write(struct console *co,
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/*
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* First save the CR then disable the interrupts
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*/
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- old_cr = readb(uap->port.membase + UART010_CR);
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+ old_cr = readl(uap->port.membase + UART010_CR);
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writel(UART01x_CR_UARTEN, uap->port.membase + UART010_CR);
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uart_console_write(&uap->port, s, count, pl010_console_putchar);
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@@ -577,7 +576,7 @@ pl010_console_write(struct console *co,
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* and restore the TCR
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*/
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do {
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- status = readb(uap->port.membase + UART01x_FR);
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+ status = readl(uap->port.membase + UART01x_FR);
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barrier();
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} while (status & UART01x_FR_BUSY);
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writel(old_cr, uap->port.membase + UART010_CR);
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@@ -589,9 +588,9 @@ static void __init
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pl010_console_get_options(struct uart_amba_port *uap, int *baud,
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int *parity, int *bits)
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{
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- if (readb(uap->port.membase + UART010_CR) & UART01x_CR_UARTEN) {
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+ if (readl(uap->port.membase + UART010_CR) & UART01x_CR_UARTEN) {
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unsigned int lcr_h, quot;
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- lcr_h = readb(uap->port.membase + UART010_LCRH);
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+ lcr_h = readl(uap->port.membase + UART010_LCRH);
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*parity = 'n';
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if (lcr_h & UART01x_LCRH_PEN) {
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@@ -606,8 +605,8 @@ pl010_console_get_options(struct uart_am
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else
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*bits = 8;
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- quot = readb(uap->port.membase + UART010_LCRL) |
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- readb(uap->port.membase + UART010_LCRM) << 8;
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+ quot = readl(uap->port.membase + UART010_LCRL) |
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+ readl(uap->port.membase + UART010_LCRM) << 8;
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*baud = uap->port.uartclk / (16 * (quot + 1));
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}
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}
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@@ -625,7 +624,7 @@ static int __init pl010_console_setup(st
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* if so, search for the first available port that does have
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* console support.
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*/
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- if (co->index >= UART_NR)
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+ if (co->index >= SERIAL_AMBA_NR)
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co->index = 0;
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uap = amba_ports[co->index];
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if (!uap)
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@@ -643,7 +642,7 @@ static int __init pl010_console_setup(st
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static struct uart_driver amba_reg;
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static struct console amba_console = {
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- .name = "ttyAM",
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+ .name = SERIAL_AMBA_NAME,
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.write = pl010_console_write,
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.device = uart_console_device,
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.setup = pl010_console_setup,
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@@ -659,11 +658,11 @@ static struct console amba_console = {
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static struct uart_driver amba_reg = {
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.owner = THIS_MODULE,
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- .driver_name = "ttyAM",
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- .dev_name = "ttyAM",
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+ .driver_name = SERIAL_AMBA_NAME,
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+ .dev_name = SERIAL_AMBA_NAME,
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.major = SERIAL_AMBA_MAJOR,
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.minor = SERIAL_AMBA_MINOR,
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- .nr = UART_NR,
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+ .nr = SERIAL_AMBA_NR,
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.cons = AMBA_CONSOLE,
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};
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Index: linux/drivers/serial/Kconfig
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===================================================================
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--- linux.orig/drivers/serial/Kconfig
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+++ linux/drivers/serial/Kconfig
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@@ -293,10 +293,25 @@ config SERIAL_AMBA_PL010
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help
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This selects the ARM(R) AMBA(R) PrimeCell PL010 UART. If you have
|
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an Integrator/AP or Integrator/PP2 platform, or if you have a
|
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- Cirrus Logic EP93xx CPU, say Y or M here.
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+ Cirrus Logic EP93xx CPU or an Infineon ADM5120 SOC, say Y or M here.
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If unsure, say N.
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+config SERIAL_AMBA_PL010_NUMPORTS
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+ int "Maximum number of AMBA PL010 serial ports"
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+ depends on SERIAL_AMBA_PL010
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+ default "8"
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+ ---help---
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+ Set this to the number of serial ports you want the AMBA PL010 driver
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+ to support.
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+
|
||||
+config SERIAL_AMBA_PL010_PORTNAME
|
||||
+ string "Name of the AMBA PL010 serial ports"
|
||||
+ depends on SERIAL_AMBA_PL010
|
||||
+ default "ttyAM"
|
||||
+ ---help---
|
||||
+ ::: To be written :::
|
||||
+
|
||||
config SERIAL_AMBA_PL010_CONSOLE
|
||||
bool "Support for console on AMBA serial port"
|
||||
depends on SERIAL_AMBA_PL010=y
|
@ -0,0 +1,15 @@ |
||||
Index: linux/drivers/amba/bus.c
|
||||
===================================================================
|
||||
--- linux.orig/drivers/amba/bus.c
|
||||
+++ linux/drivers/amba/bus.c
|
||||
@@ -17,6 +17,10 @@
|
||||
#include <asm/io.h>
|
||||
#include <asm/sizes.h>
|
||||
|
||||
+#ifndef NO_IRQ
|
||||
+#define NO_IRQ (-1)
|
||||
+#endif
|
||||
+
|
||||
#define to_amba_device(d) container_of(d, struct amba_device, dev)
|
||||
#define to_amba_driver(d) container_of(d, struct amba_driver, drv)
|
||||
|
Loading…
Reference in new issue