From c8cee3596d955f9d4f5efa09ff091ab7e26fe066 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Tue, 12 Dec 2017 00:36:25 +0100 Subject: ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivative The BK3 board is a derivative of the ts72xx reference design. Signed-off-by: Lukasz Majewski Acked-by: H Hartley Sweeten Acked-by: Linus Walleij Signed-off-by: Alexander Sverdlin --- arch/arm/mach-ep93xx/ts72xx.c | 136 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) (limited to 'arch/arm/mach-ep93xx/ts72xx.c') diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c index 17af9d834b51..c089a2a4fe30 100644 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ b/arch/arm/mach-ep93xx/ts72xx.c @@ -19,10 +19,15 @@ #include #include #include +#include +#include +#include #include #include #include +#include +#include #include #include @@ -50,6 +55,11 @@ static struct map_desc ts72xx_io_desc[] __initdata = { .pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE), .length = TS72XX_OPTIONS2_SIZE, .type = MT_DEVICE, + }, { + .virtual = (unsigned long)TS72XX_CPLDVER_VIRT_BASE, + .pfn = __phys_to_pfn(TS72XX_CPLDVER_PHYS_BASE), + .length = TS72XX_CPLDVER_SIZE, + .type = MT_DEVICE, } }; @@ -211,6 +221,69 @@ static struct ep93xx_eth_data __initdata ts72xx_eth_data = { .phy_id = 1, }; +/************************************************************************* + * SPI SD/MMC host + *************************************************************************/ +#define BK3_EN_SDCARD_PHYS_BASE 0x12400000 +#define BK3_EN_SDCARD_PWR 0x0 +#define BK3_DIS_SDCARD_PWR 0x0C +static void bk3_mmc_spi_setpower(struct device *dev, unsigned int vdd) +{ + void __iomem *pwr_sd = ioremap(BK3_EN_SDCARD_PHYS_BASE, SZ_4K); + + if (!pwr_sd) { + pr_err("Failed to enable SD card power!"); + return; + } + + pr_debug("%s: SD card pwr %s VDD:0x%x\n", __func__, + !!vdd ? "ON" : "OFF", vdd); + + if (!!vdd) + __raw_writeb(BK3_EN_SDCARD_PWR, pwr_sd); + else + __raw_writeb(BK3_DIS_SDCARD_PWR, pwr_sd); + + iounmap(pwr_sd); +} + +static struct mmc_spi_platform_data bk3_spi_mmc_data = { + .detect_delay = 500, + .powerup_msecs = 100, + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .caps = MMC_CAP_NONREMOVABLE, + .setpower = bk3_mmc_spi_setpower, +}; + +/************************************************************************* + * SPI Bus - SD card access + *************************************************************************/ +static struct spi_board_info bk3_spi_board_info[] __initdata = { + { + .modalias = "mmc_spi", + .platform_data = &bk3_spi_mmc_data, + .max_speed_hz = 7.4E6, + .bus_num = 0, + .chip_select = 0, + .mode = SPI_MODE_0, + }, +}; + +/* + * This is a stub -> the FGPIO[3] pin is not connected on the schematic + * The all work is performed automatically by !SPI_FRAME (SFRM1) and + * goes through CPLD + */ +static int bk3_spi_chipselects[] __initdata = { + EP93XX_GPIO_LINE_F(3), +}; + +static struct ep93xx_spi_info bk3_spi_master __initdata = { + .chipselect = bk3_spi_chipselects, + .num_chipselect = ARRAY_SIZE(bk3_spi_chipselects), + .use_dma = 1, +}; + /************************************************************************* * TS72XX support code *************************************************************************/ @@ -285,3 +358,66 @@ MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC") .init_late = ep93xx_init_late, .restart = ep93xx_restart, MACHINE_END + +/************************************************************************* + * EP93xx I2S audio peripheral handling + *************************************************************************/ +static struct resource ep93xx_i2s_resource[] = { + DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE, 0x100), + DEFINE_RES_IRQ_NAMED(IRQ_EP93XX_SAI, "spilink i2s slave"), +}; + +static struct platform_device ep93xx_i2s_device = { + .name = "ep93xx-spilink-i2s", + .id = -1, + .num_resources = ARRAY_SIZE(ep93xx_i2s_resource), + .resource = ep93xx_i2s_resource, +}; + +/************************************************************************* + * BK3 support code + *************************************************************************/ +static struct mtd_partition bk3_nand_parts[] = { + { + .name = "System", + .offset = 0x00000000, + .size = 0x01e00000, + }, { + .name = "Data", + .offset = 0x01e00000, + .size = 0x05f20000 + }, { + .name = "RedBoot", + .offset = 0x07d20000, + .size = 0x002e0000, + .mask_flags = MTD_WRITEABLE, /* force RO */ + }, +}; + +static void __init bk3_init_machine(void) +{ + ep93xx_init_devices(); + + ts72xx_register_flash(bk3_nand_parts, ARRAY_SIZE(bk3_nand_parts), + EP93XX_CS6_PHYS_BASE); + + ep93xx_register_eth(&ts72xx_eth_data, 1); + + ep93xx_register_spi(&bk3_spi_master, bk3_spi_board_info, + ARRAY_SIZE(bk3_spi_board_info)); + + /* Configure ep93xx's I2S to use AC97 pins */ + ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97); + platform_device_register(&ep93xx_i2s_device); +} + +MACHINE_START(BK3, "Liebherr controller BK3.1") + /* Maintainer: Lukasz Majewski */ + .atag_offset = 0x100, + .map_io = ts72xx_map_io, + .init_irq = ep93xx_init_irq, + .init_time = ep93xx_timer_init, + .init_machine = bk3_init_machine, + .init_late = ep93xx_init_late, + .restart = ep93xx_restart, +MACHINE_END -- cgit v1.2.3-59-g8ed1b