From: Ralf Baechle Date: Tue, 18 Dec 2012 10:41:14 +0000 (+0100) Subject: serial: Remove RM9000 series serial driver. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a205a56dc24811a2879572e52c902a38425a4473;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git serial: Remove RM9000 series serial driver. Now that support for RM9000 and platforms based on it has been removed, remove the serial driver for it as well. It's really only been a quirk for an almost 8250 compatible UART anyway. Signed-off-by: Ralf Baechle drivers/tty/serial/8250/8250.c | 70 +---------------------------------------- drivers/tty/serial/8250/Kconfig | 9 ------ include/linux/serial_core.h | 1 - 3 files changed, 1 insertion(+), 79 deletions(-) Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index d085e3a8ec06..5fb6577b94dc 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -239,13 +239,6 @@ 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, @@ -364,56 +357,6 @@ static void au_serial_dl_write(struct uart_8250_port *up, int value) #endif -#ifdef 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 unsigned int rm9k_serial_in(struct uart_port *p, int offset) -{ - offset = regmap_in[offset] << p->regshift; - return readl(p->membase + offset); -} - -static void rm9k_serial_out(struct uart_port *p, int offset, int value) -{ - offset = regmap_out[offset] << p->regshift; - writel(value, p->membase + offset); -} - -static int rm9k_serial_dl_read(struct uart_8250_port *up) -{ - return ((__raw_readl(up->port.membase + 0x10) << 8) | - (__raw_readl(up->port.membase + 0x08) & 0xff)) & 0xffff; -} - -static void rm9k_serial_dl_write(struct uart_8250_port *up, int value) -{ - __raw_writel(value, up->port.membase + 0x08); - __raw_writel(value >> 8, up->port.membase + 0x10); -} - -#endif - static unsigned int hub6_serial_in(struct uart_port *p, int offset) { offset = offset << p->regshift; @@ -491,15 +434,6 @@ static void set_io_from_upio(struct uart_port *p) p->serial_out = mem32_serial_out; break; -#ifdef CONFIG_SERIAL_8250_RM9K - case UPIO_RM9000: - p->serial_in = rm9k_serial_in; - p->serial_out = rm9k_serial_out; - up->dl_read = rm9k_serial_dl_read; - up->dl_write = rm9k_serial_dl_write; - break; -#endif - #ifdef CONFIG_MIPS_ALCHEMY case UPIO_AU: p->serial_in = au_serial_in; @@ -1343,9 +1277,7 @@ 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 ((port->type == PORT_RM9000) ? - (lsr & UART_LSR_THRE) : - (lsr & UART_LSR_TEMT)) + if (lsr & UART_LSR_TEMT) serial8250_tx_chars(up); } } diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index c31133a6ea8e..d79208f47237 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -249,15 +249,6 @@ 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. - config SERIAL_8250_FSL bool depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550 diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index a116daa13113..ec5df74c4506 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -136,7 +136,6 @@ struct uart_port { #define UPIO_MEM32 (3) #define UPIO_AU (4) /* Au1x00 type IO */ #define UPIO_TSI (5) /* Tsi108/109 type IO */ -#define UPIO_RM9000 (6) /* RM9000 type IO */ unsigned int read_status_mask; /* driver specific */ unsigned int ignore_status_mask; /* driver specific */