mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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cd4a05f9df
This allows us to have more mapping functions for more than one i.MX architecture in the kernel. As this is the earliest board specific hook we have, also use it to set the cpu type. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
295 lines
6.9 KiB
C
295 lines
6.9 KiB
C
/*
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2002 Shane Nay (shane@minirl.com)
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* Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/mach/map.h>
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#include <mach/gpio.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux.h>
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#include <mach/board-mx27ads.h>
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#include "devices.h"
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/* ADS's NOR flash */
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static struct physmap_flash_data mx27ads_flash_data = {
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.width = 2,
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};
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static struct resource mx27ads_flash_resource = {
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.start = 0xc0000000,
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.end = 0xc0000000 + 0x02000000 - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device mx27ads_nor_mtd_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &mx27ads_flash_data,
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},
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.num_resources = 1,
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.resource = &mx27ads_flash_resource,
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};
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static int mxc_uart0_pins[] = {
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS
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};
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static int uart_mxc_port0_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
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ARRAY_SIZE(mxc_uart0_pins), "UART0");
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}
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static int uart_mxc_port0_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart0_pins,
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ARRAY_SIZE(mxc_uart0_pins));
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return 0;
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}
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static int mxc_uart1_pins[] = {
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PE3_PF_UART2_CTS,
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PE4_PF_UART2_RTS,
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PE6_PF_UART2_TXD,
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PE7_PF_UART2_RXD
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};
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static int uart_mxc_port1_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins), "UART1");
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}
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static int uart_mxc_port1_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins));
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return 0;
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}
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static int mxc_uart2_pins[] = {
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PE8_PF_UART3_TXD,
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PE9_PF_UART3_RXD,
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PE10_PF_UART3_CTS,
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PE11_PF_UART3_RTS
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};
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static int uart_mxc_port2_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
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ARRAY_SIZE(mxc_uart2_pins), "UART2");
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}
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static int uart_mxc_port2_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart2_pins,
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ARRAY_SIZE(mxc_uart2_pins));
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return 0;
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}
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static int mxc_uart3_pins[] = {
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PB26_AF_UART4_RTS,
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PB28_AF_UART4_TXD,
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PB29_AF_UART4_CTS,
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PB31_AF_UART4_RXD
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};
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static int uart_mxc_port3_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
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ARRAY_SIZE(mxc_uart3_pins), "UART3");
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}
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static int uart_mxc_port3_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart3_pins,
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ARRAY_SIZE(mxc_uart3_pins));
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return 0;
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}
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static int mxc_uart4_pins[] = {
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PB18_AF_UART5_TXD,
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PB19_AF_UART5_RXD,
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PB20_AF_UART5_CTS,
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PB21_AF_UART5_RTS
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};
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static int uart_mxc_port4_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
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ARRAY_SIZE(mxc_uart4_pins), "UART4");
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}
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static int uart_mxc_port4_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart4_pins,
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ARRAY_SIZE(mxc_uart4_pins));
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return 0;
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}
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static int mxc_uart5_pins[] = {
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PB10_AF_UART6_TXD,
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PB12_AF_UART6_CTS,
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PB11_AF_UART6_RXD,
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PB13_AF_UART6_RTS
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};
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static int uart_mxc_port5_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
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ARRAY_SIZE(mxc_uart5_pins), "UART5");
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}
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static int uart_mxc_port5_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart5_pins,
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ARRAY_SIZE(mxc_uart5_pins));
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return 0;
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}
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static struct platform_device *platform_devices[] __initdata = {
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&mx27ads_nor_mtd_device,
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&mxc_fec_device,
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};
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static int mxc_fec_pins[] = {
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN
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};
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static void gpio_fec_active(void)
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{
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mxc_gpio_setup_multiple_pins(mxc_fec_pins,
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ARRAY_SIZE(mxc_fec_pins), "FEC");
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}
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static struct imxuart_platform_data uart_pdata[] = {
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{
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.init = uart_mxc_port0_init,
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.exit = uart_mxc_port0_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart_mxc_port1_init,
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.exit = uart_mxc_port1_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart_mxc_port2_init,
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.exit = uart_mxc_port2_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart_mxc_port3_init,
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.exit = uart_mxc_port3_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart_mxc_port4_init,
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.exit = uart_mxc_port4_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart_mxc_port5_init,
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.exit = uart_mxc_port5_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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},
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};
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static void __init mx27ads_board_init(void)
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{
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gpio_fec_active();
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mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
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mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
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mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
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mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
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mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
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mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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static void __init mx27ads_timer_init(void)
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{
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unsigned long fref = 26000000;
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if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
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fref = 27000000;
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mx27_clocks_init(fref);
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}
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static struct sys_timer mx27ads_timer = {
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.init = mx27ads_timer_init,
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};
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static struct map_desc mx27ads_io_desc[] __initdata = {
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{
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.virtual = PBC_BASE_ADDRESS,
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.pfn = __phys_to_pfn(CS4_BASE_ADDR),
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.length = SZ_1M,
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.type = MT_DEVICE,
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},
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};
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static void __init mx27ads_map_io(void)
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{
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mx27_map_io();
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iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
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}
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MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
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/* maintainer: Freescale Semiconductor, Inc. */
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.phys_io = AIPI_BASE_ADDR,
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.io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx27ads_map_io,
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.init_irq = mxc_init_irq,
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.init_machine = mx27ads_board_init,
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.timer = &mx27ads_timer,
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MACHINE_END
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