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author | Arnd Bergmann <arnd@arndb.de> | 2018-03-07 21:36:19 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-09 23:20:00 +0100 |
commit | 553b085c2075f6a4a2591108554f830fa61e881f (patch) | |
tree | 68d63911f2c12e0fb9fa23498df9300442a88f92 /arch/m32r/platforms/usrv/io.c | |
parent | fd8773f9f544955f6f47dc2ac3ab85ad64376b7f (diff) | |
download | linux-553b085c2075f6a4a2591108554f830fa61e881f.tar.gz linux-553b085c2075f6a4a2591108554f830fa61e881f.tar.bz2 linux-553b085c2075f6a4a2591108554f830fa61e881f.zip |
arch: remove m32r port
The Mitsubishi/Renesas m32r architecture has been around for many years,
but the Linux port has been obsolete for a very long time as well, with
the last significant updates done for linux-2.6.14.
While some m32r microcontrollers are still being marketed by Renesas,
those are apparently no longer possible to support, mainly due to the
lack of an external memory interface.
Hirokazu Takata was the maintainer until the architecture got marked
Orphaned in 2014.
Link: http://www.linux-m32r.org/
Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/m32r/platforms/usrv/io.c')
-rw-r--r-- | arch/m32r/platforms/usrv/io.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/arch/m32r/platforms/usrv/io.c b/arch/m32r/platforms/usrv/io.c deleted file mode 100644 index f5e50d37badb..000000000000 --- a/arch/m32r/platforms/usrv/io.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - * linux/arch/m32r/platforms/usrv/io.c - * - * Typical I/O routines for uServer board. - * - * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata, - * Hitoshi Yamamoto, Takeo Takahashi - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file "COPYING" in the main directory of this - * archive for more details. - * - */ - -#include <asm/m32r.h> -#include <asm/page.h> -#include <asm/io.h> - -#include <linux/types.h> -#include "../../../../drivers/pcmcia/m32r_cfc.h" - -extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int); -extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int); -extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int); -extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int); -#define CFC_IOSTART CFC_IOPORT_BASE -#define CFC_IOEND (CFC_IOSTART + (M32R_PCC_MAPSIZE * M32R_MAX_PCC) - 1) - -#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) -#define UART0_REGSTART 0x04c20000 -#define UART1_REGSTART 0x04c20100 -#define UART_IOMAP_SIZE 8 -#define UART0_IOSTART 0x3f8 -#define UART0_IOEND (UART0_IOSTART + UART_IOMAP_SIZE - 1) -#define UART1_IOSTART 0x2f8 -#define UART1_IOEND (UART1_IOSTART + UART_IOMAP_SIZE - 1) -#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */ - -#define PORT2ADDR(port) _port2addr(port) - -static inline void *_port2addr(unsigned long port) -{ -#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) - if (port >= UART0_IOSTART && port <= UART0_IOEND) - port = ((port - UART0_IOSTART) << 1) + UART0_REGSTART; - else if (port >= UART1_IOSTART && port <= UART1_IOEND) - port = ((port - UART1_IOSTART) << 1) + UART1_REGSTART; -#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */ - return (void *)(port | (NONCACHE_OFFSET)); -} - -static inline void delay(void) -{ - __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory"); -} - -unsigned char _inb(unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) { - unsigned char b; - pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0); - return b; - } else - return *(volatile unsigned char *)PORT2ADDR(port); -} - -unsigned short _inw(unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) { - unsigned short w; - pcc_ioread_word(0, port, &w, sizeof(w), 1, 0); - return w; - } else - return *(volatile unsigned short *)PORT2ADDR(port); -} - -unsigned long _inl(unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) { - unsigned long l; - pcc_ioread_word(0, port, &l, sizeof(l), 1, 0); - return l; - } else - return *(volatile unsigned long *)PORT2ADDR(port); -} - -unsigned char _inb_p(unsigned long port) -{ - unsigned char v = _inb(port); - delay(); - return v; -} - -unsigned short _inw_p(unsigned long port) -{ - unsigned short v = _inw(port); - delay(); - return v; -} - -unsigned long _inl_p(unsigned long port) -{ - unsigned long v = _inl(port); - delay(); - return v; -} - -void _outb(unsigned char b, unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0); - else - *(volatile unsigned char *)PORT2ADDR(port) = b; -} - -void _outw(unsigned short w, unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0); - else - *(volatile unsigned short *)PORT2ADDR(port) = w; -} - -void _outl(unsigned long l, unsigned long port) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0); - else - *(volatile unsigned long *)PORT2ADDR(port) = l; -} - -void _outb_p(unsigned char b, unsigned long port) -{ - _outb(b, port); - delay(); -} - -void _outw_p(unsigned short w, unsigned long port) -{ - _outw(w, port); - delay(); -} - -void _outl_p(unsigned long l, unsigned long port) -{ - _outl(l, port); - delay(); -} - -void _insb(unsigned int port, void * addr, unsigned long count) -{ - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_ioread_byte(0, port, addr, sizeof(unsigned char), count, 1); - else { - unsigned char *buf = addr; - unsigned char *portp = PORT2ADDR(port); - while (count--) - *buf++ = *(volatile unsigned char *)portp; - } -} - -void _insw(unsigned int port, void * addr, unsigned long count) -{ - unsigned short *buf = addr; - unsigned short *portp; - - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_ioread_word(0, port, addr, sizeof(unsigned short), count, - 1); - else { - portp = PORT2ADDR(port); - while (count--) - *buf++ = *(volatile unsigned short *)portp; - } -} - -void _insl(unsigned int port, void * addr, unsigned long count) -{ - unsigned long *buf = addr; - unsigned long *portp; - - portp = PORT2ADDR(port); - while (count--) - *buf++ = *(volatile unsigned long *)portp; -} - -void _outsb(unsigned int port, const void * addr, unsigned long count) -{ - const unsigned char *buf = addr; - unsigned char *portp; - - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char), - count, 1); - else { - portp = PORT2ADDR(port); - while (count--) - *(volatile unsigned char *)portp = *buf++; - } -} - -void _outsw(unsigned int port, const void * addr, unsigned long count) -{ - const unsigned short *buf = addr; - unsigned short *portp; - - if (port >= CFC_IOSTART && port <= CFC_IOEND) - pcc_iowrite_word(0, port, (void *)addr, sizeof(unsigned short), - count, 1); - else { - portp = PORT2ADDR(port); - while (count--) - *(volatile unsigned short *)portp = *buf++; - } -} - -void _outsl(unsigned int port, const void * addr, unsigned long count) -{ - const unsigned long *buf = addr; - unsigned char *portp; - - portp = PORT2ADDR(port); - while (count--) - *(volatile unsigned long *)portp = *buf++; -} |