diff options
Diffstat (limited to 'arch/arm/mach-pxa/zylonite_pxa300.c')
| -rw-r--r-- | arch/arm/mach-pxa/zylonite_pxa300.c | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c new file mode 100644 index 000000000..50a8a3547 --- /dev/null +++ b/arch/arm/mach-pxa/zylonite_pxa300.c @@ -0,0 +1,281 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/arch/arm/mach-pxa/zylonite_pxa300.c + * + * PXA300/PXA310 specific support code for the + * PXA3xx Development Platform (aka Zylonite) + * + * Copyright (C) 2007 Marvell Internation Ltd. + * 2007-08-21: eric miao <eric.miao@marvell.com> + * initial version + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/platform_data/i2c-pxa.h> +#include <linux/platform_data/pca953x.h> +#include <linux/gpio.h> +#include <linux/soc/pxa/cpu.h> + +#include "pxa300.h" +#include "devices.h" +#include "zylonite.h" + +#include "generic.h" + +/* PXA300/PXA310 common configurations */ +static mfp_cfg_t common_mfp_cfg[] __initdata = { + /* LCD */ + GPIO54_LCD_LDD_0, + GPIO55_LCD_LDD_1, + GPIO56_LCD_LDD_2, + GPIO57_LCD_LDD_3, + GPIO58_LCD_LDD_4, + GPIO59_LCD_LDD_5, + GPIO60_LCD_LDD_6, + GPIO61_LCD_LDD_7, + GPIO62_LCD_LDD_8, + GPIO63_LCD_LDD_9, + GPIO64_LCD_LDD_10, + GPIO65_LCD_LDD_11, + GPIO66_LCD_LDD_12, + GPIO67_LCD_LDD_13, + GPIO68_LCD_LDD_14, + GPIO69_LCD_LDD_15, + GPIO70_LCD_LDD_16, + GPIO71_LCD_LDD_17, + GPIO72_LCD_FCLK, + GPIO73_LCD_LCLK, + GPIO74_LCD_PCLK, + GPIO75_LCD_BIAS, + GPIO76_LCD_VSYNC, + GPIO127_LCD_CS_N, + GPIO20_PWM3_OUT, /* backlight */ + + /* BTUART */ + GPIO111_UART2_RTS, + GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL, + GPIO113_UART2_TXD, + GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH, + + /* STUART */ + GPIO109_UART3_TXD, + GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL, + + /* AC97 */ + GPIO23_AC97_nACRESET, + GPIO24_AC97_SYSCLK, + GPIO29_AC97_BITCLK, + GPIO25_AC97_SDATA_IN_0, + GPIO27_AC97_SDATA_OUT, + GPIO28_AC97_SYNC, + GPIO17_GPIO, /* SDATA_IN_1 but unused - configure to GPIO */ + + /* SSP3 */ + GPIO91_SSP3_SCLK, + GPIO92_SSP3_FRM, + GPIO93_SSP3_TXD, + GPIO94_SSP3_RXD, + + /* WM9713 IRQ */ + GPIO26_GPIO, + + /* Keypad */ + GPIO107_KP_DKIN_0 | MFP_LPM_EDGE_BOTH, + GPIO108_KP_DKIN_1 | MFP_LPM_EDGE_BOTH, + GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH, + GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH, + GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH, + GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH, + GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH, + GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH, + GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH, + GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH, + GPIO121_KP_MKOUT_0, + GPIO122_KP_MKOUT_1, + GPIO123_KP_MKOUT_2, + GPIO124_KP_MKOUT_3, + GPIO125_KP_MKOUT_4, + GPIO4_2_KP_MKOUT_5, + GPIO5_2_KP_MKOUT_6, + GPIO6_2_KP_MKOUT_7, + + /* MMC1 */ + GPIO3_MMC1_DAT0, + GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH, + GPIO5_MMC1_DAT2, + GPIO6_MMC1_DAT3, + GPIO7_MMC1_CLK, + GPIO8_MMC1_CMD, /* CMD0 for slot 0 */ + GPIO15_GPIO, /* CMD1 default as GPIO for slot 0 */ + + /* MMC2 */ + GPIO9_MMC2_DAT0, + GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH, + GPIO11_MMC2_DAT2, + GPIO12_MMC2_DAT3, + GPIO13_MMC2_CLK, + GPIO14_MMC2_CMD, + + /* USB Host */ + GPIO0_2_USBH_PEN, + GPIO1_2_USBH_PWR, + + /* Standard I2C */ + GPIO21_I2C_SCL, + GPIO22_I2C_SDA, + + /* GPIO */ + GPIO18_GPIO | MFP_PULL_HIGH, /* GPIO Expander #0 INT_N */ + GPIO19_GPIO | MFP_PULL_HIGH, /* GPIO Expander #1 INT_N */ +}; + +static mfp_cfg_t pxa300_mfp_cfg[] __initdata = { + /* FFUART */ + GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL, + GPIO31_UART1_TXD, + GPIO32_UART1_CTS, + GPIO37_UART1_RTS, + GPIO33_UART1_DCD, + GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL, + GPIO35_UART1_RI, + GPIO36_UART1_DTR, + + /* Ethernet */ + GPIO2_nCS3, + GPIO99_GPIO, +}; + +static mfp_cfg_t pxa310_mfp_cfg[] __initdata = { + /* FFUART */ + GPIO99_UART1_RXD | MFP_LPM_EDGE_FALL, + GPIO100_UART1_TXD, + GPIO101_UART1_CTS, + GPIO106_UART1_RTS, + + /* Ethernet */ + GPIO2_nCS3, + GPIO102_GPIO, + + /* MMC3 */ + GPIO7_2_MMC3_DAT0, + GPIO8_2_MMC3_DAT1 | MFP_LPM_EDGE_BOTH, + GPIO9_2_MMC3_DAT2, + GPIO10_2_MMC3_DAT3, + GPIO103_MMC3_CLK, + GPIO105_MMC3_CMD, +}; + +#define NUM_LCD_DETECT_PINS 7 + +static int lcd_detect_pins[] __initdata = { + MFP_PIN_GPIO71, /* LCD_LDD_17 - ORIENT */ + MFP_PIN_GPIO70, /* LCD_LDD_16 - LCDID[5] */ + MFP_PIN_GPIO75, /* LCD_BIAS - LCDID[4] */ + MFP_PIN_GPIO73, /* LCD_LCLK - LCDID[3] */ + MFP_PIN_GPIO72, /* LCD_FCLK - LCDID[2] */ + MFP_PIN_GPIO127,/* LCD_CS_N - LCDID[1] */ + MFP_PIN_GPIO76, /* LCD_VSYNC - LCDID[0] */ +}; + +static void __init zylonite_detect_lcd_panel(void) +{ + unsigned long mfpr_save[NUM_LCD_DETECT_PINS]; + int i, gpio, id = 0; + + /* save the original MFP settings of these pins and configure + * them as GPIO Input, DS01X, Pull Neither, Edge Clear + */ + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { + mfpr_save[i] = pxa3xx_mfp_read(lcd_detect_pins[i]); + pxa3xx_mfp_write(lcd_detect_pins[i], 0x8440); + } + + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) { + id = id << 1; + gpio = mfp_to_gpio(lcd_detect_pins[i]); + gpio_request(gpio, "LCD_ID_PINS"); + gpio_direction_input(gpio); + + if (gpio_get_value(gpio)) + id = id | 0x1; + gpio_free(gpio); + } + + /* lcd id, flush out bit 1 */ + lcd_id = id & 0x3d; + + /* lcd orientation, portrait or landscape */ + lcd_orientation = (id >> 6) & 0x1; + + /* restore the original MFP settings */ + for (i = 0; i < NUM_LCD_DETECT_PINS; i++) + pxa3xx_mfp_write(lcd_detect_pins[i], mfpr_save[i]); +} + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static struct pca953x_platform_data gpio_exp[] = { + [0] = { + .gpio_base = 128, + }, + [1] = { + .gpio_base = 144, + }, +}; + +static struct i2c_board_info zylonite_i2c_board_info[] = { + { + .type = "pca9539", + .dev_name = "pca9539-a", + .addr = 0x74, + .platform_data = &gpio_exp[0], + .irq = PXA_GPIO_TO_IRQ(18), + }, { + .type = "pca9539", + .dev_name = "pca9539-b", + .addr = 0x75, + .platform_data = &gpio_exp[1], + .irq = PXA_GPIO_TO_IRQ(19), + }, +}; + +static void __init zylonite_init_i2c(void) +{ + pxa_set_i2c_info(NULL); + i2c_register_board_info(0, ARRAY_AND_SIZE(zylonite_i2c_board_info)); +} +#else +static inline void zylonite_init_i2c(void) {} +#endif + +void __init zylonite_pxa300_init(void) +{ + if (cpu_is_pxa300() || cpu_is_pxa310()) { + /* initialize MFP */ + pxa3xx_mfp_config(ARRAY_AND_SIZE(common_mfp_cfg)); + + /* detect LCD panel */ + zylonite_detect_lcd_panel(); + + /* WM9713 IRQ */ + wm9713_irq = mfp_to_gpio(MFP_PIN_GPIO26); + + zylonite_init_i2c(); + } + + if (cpu_is_pxa300()) { + pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa300_mfp_cfg)); + gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO99); + } + + if (cpu_is_pxa310()) { + pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg)); + gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102); + } + + /* GPIOs for Debug LEDs */ + gpio_debug_led1 = EXT_GPIO(25); + gpio_debug_led2 = EXT_GPIO(26); +} |