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List: linux-serial
Subject: [PATCH 1/7] serial/8250: remove obsolete RM9000 port type
From: Arnd Bergmann <arnd () arndb ! de>
Date: 2011-06-27 21:45:14
Message-ID: 1309211120-2803-2-git-send-email-arnd () arndb ! de
[Download RAW message or body]
This code was only used on the MIPS eXcite platform, which got
removed in 2009. Since no code ever sets UPIO_RM9000, none of
the code is being used any more now.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: linux-serial@vger.kernel.org
---
arch/mips/Kconfig | 7 ----
drivers/tty/serial/8250.c | 68 +------------------------------------------
drivers/tty/serial/Kconfig | 9 ------
include/linux/serial_core.h | 3 +-
4 files changed, 2 insertions(+), 85 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 653da62..a07f7b8 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1045,10 +1045,6 @@ config PCI_GT64XXX_PCI0
config NO_EXCEPT_FILL
bool
-config MIPS_RM9122
- bool
- select SERIAL_RM9000
-
config SOC_EMMA2RH
bool
select CEVT_R4K
@@ -1094,9 +1090,6 @@ config SOC_PNX8550
config SWAP_IO_SPACE
bool
-config SERIAL_RM9000
- bool
-
config SGI_HAS_INDYDOG
bool
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index b40f7b9..cf19b26 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -273,13 +273,6 @@ static const struct serial8250_config uart_config[] = {
.fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
.flags = UART_CAP_FIFO | UART_CAP_UUE | UART_CAP_RTOIE,
},
- [PORT_RM9000] = {
- .name = "RM9000",
- .fifo_size = 16,
- .tx_loadsz = 16,
- .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
- .flags = UART_CAP_FIFO,
- },
[PORT_OCTEON] = {
.name = "OCTEON",
.fifo_size = 64,
@@ -347,44 +340,6 @@ static inline int map_8250_out_reg(struct uart_port *p, int offset)
return au_io_out_map[offset];
}
-#elif defined(CONFIG_SERIAL_8250_RM9K)
-
-static const u8
- regmap_in[8] = {
- [UART_RX] = 0x00,
- [UART_IER] = 0x0c,
- [UART_IIR] = 0x14,
- [UART_LCR] = 0x1c,
- [UART_MCR] = 0x20,
- [UART_LSR] = 0x24,
- [UART_MSR] = 0x28,
- [UART_SCR] = 0x2c
- },
- regmap_out[8] = {
- [UART_TX] = 0x04,
- [UART_IER] = 0x0c,
- [UART_FCR] = 0x18,
- [UART_LCR] = 0x1c,
- [UART_MCR] = 0x20,
- [UART_LSR] = 0x24,
- [UART_MSR] = 0x28,
- [UART_SCR] = 0x2c
- };
-
-static inline int map_8250_in_reg(struct uart_port *p, int offset)
-{
- if (p->iotype != UPIO_RM9000)
- return offset;
- return regmap_in[offset];
-}
-
-static inline int map_8250_out_reg(struct uart_port *p, int offset)
-{
- if (p->iotype != UPIO_RM9000)
- return offset;
- return regmap_out[offset];
-}
-
#else
/* sane hardware needs no mapping */
@@ -524,7 +479,6 @@ static void set_io_from_upio(struct uart_port *p)
p->serial_out = mem_serial_out;
break;
- case UPIO_RM9000:
case UPIO_MEM32:
p->serial_in = mem32_serial_in;
p->serial_out = mem32_serial_out;
@@ -620,24 +574,6 @@ static void serial_dl_write(struct uart_8250_port *up, int value)
else
_serial_dl_write(up, value);
}
-#elif defined(CONFIG_SERIAL_8250_RM9K)
-static int serial_dl_read(struct uart_8250_port *up)
-{
- return (up->port.iotype == UPIO_RM9000) ?
- (((__raw_readl(up->port.membase + 0x10) << 8) |
- (__raw_readl(up->port.membase + 0x08) & 0xff)) & 0xffff) :
- _serial_dl_read(up);
-}
-
-static void serial_dl_write(struct uart_8250_port *up, int value)
-{
- if (up->port.iotype == UPIO_RM9000) {
- __raw_writel(value, up->port.membase + 0x08);
- __raw_writel(value >> 8, up->port.membase + 0x10);
- } else {
- _serial_dl_write(up, value);
- }
-}
#else
#define serial_dl_read(up) _serial_dl_read(up)
#define serial_dl_write(up, value) _serial_dl_write(up, value)
@@ -1394,9 +1330,7 @@ static void serial8250_start_tx(struct uart_port *port)
unsigned char lsr;
lsr = serial_in(up, UART_LSR);
up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
- if ((up->port.type == PORT_RM9000) ?
- (lsr & UART_LSR_THRE) :
- (lsr & UART_LSR_TEMT))
+ if (lsr & UART_LSR_TEMT)
transmit_chars(up);
}
}
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 636144c..ea12815 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -258,15 +258,6 @@ config SERIAL_8250_ACORN
system, say Y to this option. The driver can handle 1, 2, or 3 port
cards. If unsure, say N.
-config SERIAL_8250_RM9K
- bool "Support for MIPS RM9xxx integrated serial port"
- depends on SERIAL_8250 != n && SERIAL_RM9000
- select SERIAL_8250_SHARE_IRQ
- help
- Selecting this option will add support for the integrated serial
- port hardware found on MIPS RM9122 and similar processors.
- If unsure, say N.
-
comment "Non-8250 serial port support"
config SERIAL_AMBA_PL010
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index a5c3114..df295e0 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -41,7 +41,7 @@
#define PORT_RSA 13
#define PORT_NS16550A 14
#define PORT_XSCALE 15
-#define PORT_RM9000 16 /* PMC-Sierra RM9xxx internal UART */
+/* #define PORT_RM9000 16 */ /* was: PMC-Sierra RM9xxx internal UART */
#define PORT_OCTEON 17 /* Cavium OCTEON internal UART */
#define PORT_AR7 18 /* Texas Instruments AR7 internal UART */
#define PORT_U6_16550A 19 /* ST-Ericsson U6xxx internal UART */
@@ -318,7 +318,6 @@ struct uart_port {
#define UPIO_AU (4) /* Au1x00 type IO */
#define UPIO_TSI (5) /* Tsi108/109 type IO */
#define UPIO_DWAPB (6) /* DesignWare APB UART */
-#define UPIO_RM9000 (7) /* RM9000 type IO */
#define UPIO_DWAPB32 (8) /* DesignWare APB UART (32 bit accesses) */
unsigned int read_status_mask; /* driver specific */
--
1.7.5.4
--
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