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https://github.com/edk2-porting/linux-next.git
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913413c307
The patch extends card_detect and write_protect support to get mx5 family and more scenarios supported. The changes include: * Turn platform_data from optional to mandatory * Add cd_types and wp_types into platform_data to cover more use cases * Remove the use of flag ESDHC_FLAG_GPIO_FOR_CD * Adjust some machine codes to adopt the platform_data changes * Work around the issue that software reset will get card detection circuit stop working With this patch, card_detect and write_protect gets supported on mx5 based platforms. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Chris Ball <cjb@laptop.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org> Acked-by: Chris Ball <cjb@laptop.org>
263 lines
6.6 KiB
C
263 lines
6.6 KiB
C
/*
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* Copyright 2009 Sascha Hauer, <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,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* This machine is known as:
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* - i.MX25 3-Stack Development System
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* - i.MX25 Platform Development Kit (i.MX25 PDK)
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/clk.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/usb/otg.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/memory.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <mach/mx25.h>
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#include <mach/iomux-mx25.h>
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#include "devices-imx25.h"
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static iomux_v3_cfg_t mx25pdk_pads[] = {
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MX25_PAD_FEC_MDC__FEC_MDC,
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MX25_PAD_FEC_MDIO__FEC_MDIO,
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MX25_PAD_FEC_TDATA0__FEC_TDATA0,
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MX25_PAD_FEC_TDATA1__FEC_TDATA1,
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MX25_PAD_FEC_TX_EN__FEC_TX_EN,
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MX25_PAD_FEC_RDATA0__FEC_RDATA0,
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MX25_PAD_FEC_RDATA1__FEC_RDATA1,
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MX25_PAD_FEC_RX_DV__FEC_RX_DV,
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MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
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MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
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MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
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/* LCD */
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MX25_PAD_LD0__LD0,
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MX25_PAD_LD1__LD1,
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MX25_PAD_LD2__LD2,
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MX25_PAD_LD3__LD3,
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MX25_PAD_LD4__LD4,
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MX25_PAD_LD5__LD5,
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MX25_PAD_LD6__LD6,
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MX25_PAD_LD7__LD7,
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MX25_PAD_LD8__LD8,
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MX25_PAD_LD9__LD9,
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MX25_PAD_LD10__LD10,
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MX25_PAD_LD11__LD11,
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MX25_PAD_LD12__LD12,
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MX25_PAD_LD13__LD13,
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MX25_PAD_LD14__LD14,
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MX25_PAD_LD15__LD15,
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MX25_PAD_GPIO_E__LD16,
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MX25_PAD_GPIO_F__LD17,
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MX25_PAD_HSYNC__HSYNC,
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MX25_PAD_VSYNC__VSYNC,
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MX25_PAD_LSCLK__LSCLK,
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MX25_PAD_OE_ACD__OE_ACD,
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MX25_PAD_CONTRAST__CONTRAST,
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/* Keypad */
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MX25_PAD_KPP_ROW0__KPP_ROW0,
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MX25_PAD_KPP_ROW1__KPP_ROW1,
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MX25_PAD_KPP_ROW2__KPP_ROW2,
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MX25_PAD_KPP_ROW3__KPP_ROW3,
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MX25_PAD_KPP_COL0__KPP_COL0,
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MX25_PAD_KPP_COL1__KPP_COL1,
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MX25_PAD_KPP_COL2__KPP_COL2,
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MX25_PAD_KPP_COL3__KPP_COL3,
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/* SD1 */
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MX25_PAD_SD1_CMD__SD1_CMD,
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MX25_PAD_SD1_CLK__SD1_CLK,
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MX25_PAD_SD1_DATA0__SD1_DATA0,
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MX25_PAD_SD1_DATA1__SD1_DATA1,
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MX25_PAD_SD1_DATA2__SD1_DATA2,
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MX25_PAD_SD1_DATA3__SD1_DATA3,
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MX25_PAD_A14__GPIO_2_0, /* WriteProtect */
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MX25_PAD_A15__GPIO_2_1, /* CardDetect */
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/* I2C1 */
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MX25_PAD_I2C1_CLK__I2C1_CLK,
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MX25_PAD_I2C1_DAT__I2C1_DAT,
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};
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static const struct fec_platform_data mx25_fec_pdata __initconst = {
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.phy = PHY_INTERFACE_MODE_RMII,
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};
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#define FEC_ENABLE_GPIO IMX_GPIO_NR(2, 3)
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#define FEC_RESET_B_GPIO IMX_GPIO_NR(4, 8)
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static void __init mx25pdk_fec_reset(void)
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{
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gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
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gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
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gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
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gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
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udelay(2);
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/* turn on PHY power and lift reset */
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gpio_set_value(FEC_ENABLE_GPIO, 1);
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gpio_set_value(FEC_RESET_B_GPIO, 1);
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}
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static const struct mxc_nand_platform_data
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mx25pdk_nand_board_info __initconst = {
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.width = 1,
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.hw_ecc = 1,
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.flash_bbt = 1,
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};
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static struct imx_fb_videomode mx25pdk_modes[] = {
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{
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.mode = {
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.name = "CRT-VGA",
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.refresh = 60,
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.xres = 640,
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.yres = 480,
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.pixclock = 39683,
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.left_margin = 45,
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.right_margin = 114,
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.upper_margin = 33,
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.lower_margin = 11,
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.hsync_len = 1,
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.vsync_len = 1,
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},
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.bpp = 16,
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.pcr = 0xFA208B80,
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},
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};
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static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = {
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.mode = mx25pdk_modes,
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.num_modes = ARRAY_SIZE(mx25pdk_modes),
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.pwmr = 0x00A903FF,
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.lscr1 = 0x00120300,
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.dmacr = 0x00020010,
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};
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static const uint32_t mx25pdk_keymap[] = {
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KEY(0, 0, KEY_UP),
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KEY(0, 1, KEY_DOWN),
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KEY(0, 2, KEY_VOLUMEDOWN),
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KEY(0, 3, KEY_HOME),
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KEY(1, 0, KEY_RIGHT),
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KEY(1, 1, KEY_LEFT),
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KEY(1, 2, KEY_ENTER),
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KEY(1, 3, KEY_VOLUMEUP),
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KEY(2, 0, KEY_F6),
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KEY(2, 1, KEY_F8),
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KEY(2, 2, KEY_F9),
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KEY(2, 3, KEY_F10),
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KEY(3, 0, KEY_F1),
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KEY(3, 1, KEY_F2),
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KEY(3, 2, KEY_F3),
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KEY(3, 3, KEY_POWER),
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};
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static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
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.keymap = mx25pdk_keymap,
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.keymap_size = ARRAY_SIZE(mx25pdk_keymap),
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};
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static int mx25pdk_usbh2_init(struct platform_device *pdev)
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{
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return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
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}
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static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
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.init = mx25pdk_usbh2_init,
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.portsc = MXC_EHCI_MODE_SERIAL,
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};
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static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_UTMI,
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};
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static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = {
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.bitrate = 100000,
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};
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#define SD1_GPIO_WP IMX_GPIO_NR(2, 0)
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#define SD1_GPIO_CD IMX_GPIO_NR(2, 1)
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static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = {
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.wp_gpio = SD1_GPIO_WP,
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.cd_gpio = SD1_GPIO_CD,
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.wp_type = ESDHC_WP_GPIO,
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.cd_type = ESDHC_CD_GPIO,
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};
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static void __init mx25pdk_init(void)
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{
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imx25_soc_init();
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mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
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ARRAY_SIZE(mx25pdk_pads));
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imx25_add_imx_uart0(&uart_pdata);
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imx25_add_fsl_usb2_udc(&otg_device_pdata);
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imx25_add_mxc_ehci_hs(&usbh2_pdata);
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imx25_add_mxc_nand(&mx25pdk_nand_board_info);
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imx25_add_imxdi_rtc(NULL);
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imx25_add_imx_fb(&mx25pdk_fb_pdata);
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imx25_add_imx2_wdt(NULL);
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mx25pdk_fec_reset();
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imx25_add_fec(&mx25_fec_pdata);
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imx25_add_imx_keypad(&mx25pdk_keymap_data);
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imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata);
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imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);
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}
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static void __init mx25pdk_timer_init(void)
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{
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mx25_clocks_init();
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}
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static struct sys_timer mx25pdk_timer = {
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.init = mx25pdk_timer_init,
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};
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MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.boot_params = MX25_PHYS_OFFSET + 0x100,
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.map_io = mx25_map_io,
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.init_early = imx25_init_early,
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.init_irq = mx25_init_irq,
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.timer = &mx25pdk_timer,
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.init_machine = mx25pdk_init,
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MACHINE_END
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