From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/mips/bcm47xx/serial.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 arch/mips/bcm47xx/serial.c (limited to 'arch/mips/bcm47xx/serial.c') diff --git a/arch/mips/bcm47xx/serial.c b/arch/mips/bcm47xx/serial.c new file mode 100644 index 000000000..e3c9872a4 --- /dev/null +++ b/arch/mips/bcm47xx/serial.c @@ -0,0 +1,93 @@ +/* + * 8250 UART probe driver for the BCM47XX platforms + * Author: Aurelien Jarno + * + * 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. + * + * Copyright (C) 2007 Aurelien Jarno + */ + +#include +#include +#include +#include +#include + +static struct plat_serial8250_port uart8250_data[5]; + +static struct platform_device uart8250_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = uart8250_data, + }, +}; + +#ifdef CONFIG_BCM47XX_SSB +static int __init uart8250_init_ssb(void) +{ + int i; + struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore); + + memset(&uart8250_data, 0, sizeof(uart8250_data)); + + for (i = 0; i < mcore->nr_serial_ports && + i < ARRAY_SIZE(uart8250_data) - 1; i++) { + struct plat_serial8250_port *p = &(uart8250_data[i]); + struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]); + + p->mapbase = (unsigned int)ssb_port->regs; + p->membase = (void *)ssb_port->regs; + p->irq = ssb_port->irq + 2; + p->uartclk = ssb_port->baud_base; + p->regshift = ssb_port->reg_shift; + p->iotype = UPIO_MEM; + p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + } + return platform_device_register(&uart8250_device); +} +#endif + +#ifdef CONFIG_BCM47XX_BCMA +static int __init uart8250_init_bcma(void) +{ + int i; + struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc); + + memset(&uart8250_data, 0, sizeof(uart8250_data)); + + for (i = 0; i < cc->nr_serial_ports && + i < ARRAY_SIZE(uart8250_data) - 1; i++) { + struct plat_serial8250_port *p = &(uart8250_data[i]); + struct bcma_serial_port *bcma_port; + bcma_port = &(cc->serial_ports[i]); + + p->mapbase = (unsigned int)bcma_port->regs; + p->membase = (void *)bcma_port->regs; + p->irq = bcma_port->irq; + p->uartclk = bcma_port->baud_base; + p->regshift = bcma_port->reg_shift; + p->iotype = UPIO_MEM; + p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + } + return platform_device_register(&uart8250_device); +} +#endif + +static int __init uart8250_init(void) +{ + switch (bcm47xx_bus_type) { +#ifdef CONFIG_BCM47XX_SSB + case BCM47XX_BUS_TYPE_SSB: + return uart8250_init_ssb(); +#endif +#ifdef CONFIG_BCM47XX_BCMA + case BCM47XX_BUS_TYPE_BCMA: + return uart8250_init_bcma(); +#endif + } + return -EINVAL; +} +device_initcall(uart8250_init); -- cgit v1.2.3