mirror of https://gitee.com/openkylin/linux.git
146 lines
3.7 KiB
C
146 lines
3.7 KiB
C
/*
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* Platform glue data for ST-Ericsson CW1200 driver
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*
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* Copyright (c) 2013, Sagrad, Inc
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* Author: Solomon Peachy <speachy@sagrad.com>
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/cw1200_platform.h>
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MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
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MODULE_DESCRIPTION("ST-Ericsson CW1200 Platform glue driver");
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MODULE_LICENSE("GPL");
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/* Define just one of these. Feel free to customize as needed */
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#define SAGRAD_1091_1098_EVK_SDIO
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/* #define SAGRAD_1091_1098_EVK_SPI */
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#ifdef SAGRAD_1091_1098_EVK_SDIO
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#if 0
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static struct resource cw1200_href_resources[] = {
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{
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.start = 215, /* fix me as appropriate */
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.end = 215, /* ditto */
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.flags = IORESOURCE_IO,
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.name = "cw1200_wlan_reset",
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},
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{
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.start = 216, /* fix me as appropriate */
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.end = 216, /* ditto */
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.flags = IORESOURCE_IO,
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.name = "cw1200_wlan_powerup",
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},
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{
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.start = NOMADIK_GPIO_TO_IRQ(216), /* fix me as appropriate */
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.end = NOMADIK_GPIO_TO_IRQ(216), /* ditto */
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.flags = IORESOURCE_IRQ,
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.name = "cw1200_wlan_irq",
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},
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};
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#endif
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static int cw1200_power_ctrl(const struct cw1200_platform_data_sdio *pdata,
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bool enable)
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{
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/* Control 3v3 and 1v8 to hardware as appropriate */
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/* Note this is not needed if it's controlled elsewhere or always on */
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/* May require delay for power to stabilize */
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return 0;
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}
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static int cw1200_clk_ctrl(const struct cw1200_platform_data_sdio *pdata,
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bool enable)
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{
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/* Turn CLK_32K off and on as appropriate. */
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/* Note this is not needed if it's always on */
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/* May require delay for clock to stabilize */
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return 0;
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}
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static struct cw1200_platform_data_sdio cw1200_platform_data = {
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.ref_clk = 38400,
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.have_5ghz = false,
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#if 0
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.reset = &cw1200_href_resources[0],
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.powerup = &cw1200_href_resources[1],
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.irq = &cw1200_href_resources[2],
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#endif
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.power_ctrl = cw1200_power_ctrl,
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.clk_ctrl = cw1200_clk_ctrl,
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/* .macaddr = ??? */
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.sdd_file = "sdd_sagrad_1091_1098.bin",
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};
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#endif
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#ifdef SAGRAD_1091_1098_EVK_SPI
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/* Note that this is an example of integrating into your board support file */
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static struct resource cw1200_href_resources[] = {
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{
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.start = GPIO_RF_RESET,
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.end = GPIO_RF_RESET,
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.flags = IORESOURCE_IO,
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.name = "cw1200_wlan_reset",
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},
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{
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.start = GPIO_RF_POWERUP,
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.end = GPIO_RF_POWERUP,
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.flags = IORESOURCE_IO,
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.name = "cw1200_wlan_powerup",
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},
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};
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static int cw1200_power_ctrl(const struct cw1200_platform_data_spi *pdata,
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bool enable)
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{
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/* Control 3v3 and 1v8 to hardware as appropriate */
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/* Note this is not needed if it's controlled elsewhere or always on */
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/* May require delay for power to stabilize */
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return 0;
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}
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static int cw1200_clk_ctrl(const struct cw1200_platform_data_spi *pdata,
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bool enable)
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{
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/* Turn CLK_32K off and on as appropriate. */
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/* Note this is not needed if it's always on */
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/* May require delay for clock to stabilize */
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return 0;
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}
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static struct cw1200_platform_data_spi cw1200_platform_data = {
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.ref_clk = 38400,
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.spi_bits_per_word = 16,
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.reset = &cw1200_href_resources[0],
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.powerup = &cw1200_href_resources[1],
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.power_ctrl = cw1200_power_ctrl,
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.clk_ctrl = cw1200_clk_ctrl,
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/* .macaddr = ??? */
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.sdd_file = "sdd_sagrad_1091_1098.bin",
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};
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static struct spi_board_info myboard_spi_devices[] __initdata = {
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{
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.modalias = "cw1200_wlan_spi",
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.max_speed_hz = 10000000, /* 52MHz Max */
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.bus_num = 0,
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.irq = WIFI_IRQ,
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.platform_data = &cw1200_platform_data,
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.chip_select = 0,
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},
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};
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#endif
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const void *cw1200_get_platform_data(void)
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{
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return &cw1200_platform_data;
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}
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EXPORT_SYMBOL_GPL(cw1200_get_platform_data);
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