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i.MX27: Adding PCM038 platform support
This patch adds support for the phyCORE-i.MX27 cpu module (aka pcm038). It is as generic as possible in order to support any kind of baseboard. Note: This CPU module implementation can't work without a baseboard support. Baseboard support can be added by the PCM-970 (included in this patch stack) or any custom variant. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
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6 changed files with 1255 additions and 0 deletions
1008
arch/arm/configs/pcm038_defconfig
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1008
arch/arm/configs/pcm038_defconfig
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@ -16,3 +16,10 @@ config MACH_MX27ADS
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help
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Include support for MX27ADS platform. This includes specific
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configurations for the board and its peripherals.
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config MACH_PCM038
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bool "Phytec phyCORE-i.MX27 CPU module (pcm038)"
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depends on MACH_MX27
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help
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Include support for phyCORE-i.MX27 (aka pcm038) platform. This
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includes specific configurations for the module and its peripherals.
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@ -10,3 +10,4 @@ obj-$(CONFIG_MACH_MX27) += cpu_imx27.o
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obj-$(CONFIG_MACH_MX27) += clock_imx27.o
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obj-$(CONFIG_MACH_MX27ADS) += mx27ads.o
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obj-$(CONFIG_MACH_PCM038) += pcm038.o
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200
arch/arm/mach-mx2/pcm038.c
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arch/arm/mach-mx2/pcm038.c
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@ -0,0 +1,200 @@
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/*
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* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
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* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <asm/mach/arch.h>
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#include <asm/mach-types.h>
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#include <asm/arch/common.h>
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#include <asm/hardware.h>
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#include <asm/arch/iomux-mx1-mx2.h>
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#include <asm/mach/time.h>
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#include <asm/arch/imx-uart.h>
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#include <asm/arch/board-pcm038.h>
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/*
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* Phytec's phyCORE-i.MX27 comes with 32MiB flash,
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* 16 bit width
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*/
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static struct physmap_flash_data pcm038_flash_data = {
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.width = 2,
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};
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static struct resource pcm038_flash_resource = {
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.start = 0xc0000000,
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.end = 0xc1ffffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device pcm038_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 = &pcm038_flash_data,
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},
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.num_resources = 1,
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.resource = &pcm038_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),
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MXC_GPIO_ALLOC_MODE_NORMAL, "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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return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
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ARRAY_SIZE(mxc_uart0_pins),
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MXC_GPIO_ALLOC_MODE_RELEASE, "UART0");
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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),
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MXC_GPIO_ALLOC_MODE_NORMAL, "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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return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins),
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MXC_GPIO_ALLOC_MODE_RELEASE, "UART1");
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}
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static int mxc_uart2_pins[] = { PE10_PF_UART3_CTS,
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PE9_PF_UART3_RXD,
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PE10_PF_UART3_CTS,
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PE9_PF_UART3_RXD };
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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),
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MXC_GPIO_ALLOC_MODE_NORMAL, "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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return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
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ARRAY_SIZE(mxc_uart2_pins),
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MXC_GPIO_ALLOC_MODE_RELEASE, "UART2");
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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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};
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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_CLR,
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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),
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MXC_GPIO_ALLOC_MODE_NORMAL, "FEC");
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}
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static void gpio_fec_inactive(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),
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MXC_GPIO_ALLOC_MODE_RELEASE, "FEC");
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}
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static struct platform_device *platform_devices[] __initdata = {
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&pcm038_nor_mtd_device,
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};
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static void __init pcm038_init(void)
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{
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int i;
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gpio_fec_active();
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for (i = 0; i < 3; i++)
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imx_init_uart(i, &uart_pdata[i]);
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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static void __init pcm038_timer_init(void)
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{
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mxc_clocks_init(26000000);
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mxc_timer_init("gpt_clk.0");
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}
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struct sys_timer pcm038_timer = {
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.init = pcm038_timer_init,
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};
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MACHINE_START(PCM038, "phyCORE-i.MX27")
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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 = mxc_map_io,
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.init_irq = mxc_init_irq,
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.init_machine = pcm038_init,
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.timer = &pcm038_timer,
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MACHINE_END
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36
include/asm-arm/arch-mxc/board-pcm038.h
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36
include/asm-arm/arch-mxc/board-pcm038.h
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@ -0,0 +1,36 @@
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/*
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* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#ifndef __ASM_ARCH_MXC_BOARD_PCM038_H__
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#define __ASM_ARCH_MXC_BOARD_PCM038_H__
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/* mandatory for CONFIG_LL_DEBUG */
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#define MXC_LL_UART_PADDR UART1_BASE_ADDR
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#define MXC_LL_UART_VADDR (AIPI_BASE_ADDR_VIRT + 0x0A000)
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#ifndef __ASSEMBLY__
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/*
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* This CPU module needs a baseboard to work. After basic initializing
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* its own devices, it calls baseboard's init function.
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* TODO: Add your own baseboard init function and call it from
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* inside pcm038_init().
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*/
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#endif
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#endif /* __ASM_ARCH_MXC_BOARD_PCM038_H__ */
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@ -24,6 +24,9 @@
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#endif
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#ifdef CONFIG_MACH_MX27ADS
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#include <asm/arch/board-mx27ads.h>
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#endif
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#ifdef CONFIG_MACH_PCM038
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#include <asm/arch/board-pcm038.h>
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#endif
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.macro addruart,rx
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mrc p15, 0, \rx, c1, c0
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