mirror of
https://github.com/edk2-porting/linux-next.git
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ca585cf9fb
Adds basic platform devices for Loongson 1B, including serial port, ethernet, USB, RTC and interrupt handler. The Loongson 1B UART is compatible with NS16550A, the Loongson 1B GMAC is built around a Synopsys IP Core. Use normal instead of enhanced descriptors. Thanks to Giuseppe for updating the normal descriptor in stmmac driver. Thanks to Zhao Zhang for implementing the RTC driver. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: wuzhangjin@gmail.com Cc: zhzhl555@gmail.com Cc: Kelvin Cheung <keguang.zhang@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4133/ Patchwork: https://patchwork.linux-mips.org/patch/4134/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*
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* Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/clk.h>
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#include <linux/dma-mapping.h>
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#include <linux/err.h>
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#include <linux/phy.h>
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#include <linux/serial_8250.h>
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#include <linux/stmmac.h>
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#include <asm-generic/sizes.h>
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#include <loongson1.h>
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#define LS1X_UART(_id) \
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{ \
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.mapbase = LS1X_UART ## _id ## _BASE, \
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.irq = LS1X_UART ## _id ## _IRQ, \
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.iotype = UPIO_MEM, \
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.flags = UPF_IOREMAP | UPF_FIXED_TYPE, \
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.type = PORT_16550A, \
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}
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static struct plat_serial8250_port ls1x_serial8250_port[] = {
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LS1X_UART(0),
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LS1X_UART(1),
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LS1X_UART(2),
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LS1X_UART(3),
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{},
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};
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struct platform_device ls1x_uart_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = ls1x_serial8250_port,
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},
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};
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void __init ls1x_serial_setup(void)
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{
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struct clk *clk;
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struct plat_serial8250_port *p;
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clk = clk_get(NULL, "dc");
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if (IS_ERR(clk))
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panic("unable to get dc clock, err=%ld", PTR_ERR(clk));
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for (p = ls1x_serial8250_port; p->flags != 0; ++p)
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p->uartclk = clk_get_rate(clk);
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}
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/* Synopsys Ethernet GMAC */
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static struct resource ls1x_eth0_resources[] = {
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[0] = {
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.start = LS1X_GMAC0_BASE,
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.end = LS1X_GMAC0_BASE + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.name = "macirq",
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.start = LS1X_GMAC0_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
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.bus_id = 0,
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.phy_mask = 0,
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};
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static struct plat_stmmacenet_data ls1x_eth_data = {
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.bus_id = 0,
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.phy_addr = -1,
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.mdio_bus_data = &ls1x_mdio_bus_data,
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.has_gmac = 1,
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.tx_coe = 1,
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};
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struct platform_device ls1x_eth0_device = {
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.name = "stmmaceth",
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.id = 0,
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.num_resources = ARRAY_SIZE(ls1x_eth0_resources),
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.resource = ls1x_eth0_resources,
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.dev = {
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.platform_data = &ls1x_eth_data,
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},
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};
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/* USB EHCI */
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static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);
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static struct resource ls1x_ehci_resources[] = {
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[0] = {
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.start = LS1X_EHCI_BASE,
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.end = LS1X_EHCI_BASE + SZ_32K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = LS1X_EHCI_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct platform_device ls1x_ehci_device = {
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.name = "ls1x-ehci",
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.id = -1,
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.num_resources = ARRAY_SIZE(ls1x_ehci_resources),
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.resource = ls1x_ehci_resources,
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.dev = {
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.dma_mask = &ls1x_ehci_dmamask,
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},
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};
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/* Real Time Clock */
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struct platform_device ls1x_rtc_device = {
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.name = "ls1x-rtc",
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.id = -1,
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};
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