forked from Minki/linux
bace41f80f
Mechanical switch from the legacy "mode" enumeration to the new "engine type" enumeration in drivers and board files. The device tree parsing is also updated to return the new enumeration from the old strings. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-11-miquel.raynal@bootlin.com
455 lines
11 KiB
C
455 lines
11 KiB
C
/*
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* Hawkboard.org based on TI's OMAP-L138 Platform
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*
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* Initial code: Syed Mohammed Khasim
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*
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* Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of
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* any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/rawnand.h>
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#include <linux/platform_data/gpio-davinci.h>
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#include <linux/platform_data/mtd-davinci.h>
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#include <linux/platform_data/mtd-davinci-aemif.h>
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#include <linux/platform_data/ti-aemif.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/machine.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/common.h>
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#include <mach/da8xx.h>
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#include <mach/mux.h>
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#define HAWKBOARD_PHY_ID "davinci_mdio-0:07"
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#define DA850_USB1_VBUS_PIN GPIO_TO_PIN(2, 4)
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#define DA850_USB1_OC_PIN GPIO_TO_PIN(6, 13)
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static short omapl138_hawk_mii_pins[] __initdata = {
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DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
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DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
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DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
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DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
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DA850_MDIO_D,
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-1
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};
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static __init void omapl138_hawk_config_emac(void)
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{
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void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
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int ret;
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u32 val;
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struct davinci_soc_info *soc_info = &davinci_soc_info;
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val = __raw_readl(cfgchip3);
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val &= ~BIT(8);
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ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
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if (ret) {
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pr_warn("%s: CPGMAC/MII mux setup failed: %d\n", __func__, ret);
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return;
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}
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/* configure the CFGCHIP3 register for MII */
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__raw_writel(val, cfgchip3);
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pr_info("EMAC: MII PHY configured\n");
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soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
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ret = da8xx_register_emac();
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if (ret)
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pr_warn("%s: EMAC registration failed: %d\n", __func__, ret);
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}
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/*
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* The following EDMA channels/slots are not being used by drivers (for
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* example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM/Hawkboard,
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* hence they are being reserved for codecs on the DSP side.
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*/
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static const s16 da850_dma0_rsv_chans[][2] = {
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/* (offset, number) */
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{ 8, 6},
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{24, 4},
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{30, 2},
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{-1, -1}
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};
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static const s16 da850_dma0_rsv_slots[][2] = {
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/* (offset, number) */
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{ 8, 6},
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{24, 4},
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{30, 50},
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{-1, -1}
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};
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static const s16 da850_dma1_rsv_chans[][2] = {
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/* (offset, number) */
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{ 0, 28},
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{30, 2},
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{-1, -1}
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};
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static const s16 da850_dma1_rsv_slots[][2] = {
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/* (offset, number) */
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{ 0, 28},
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{30, 90},
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{-1, -1}
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};
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static struct edma_rsv_info da850_edma_cc0_rsv = {
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.rsv_chans = da850_dma0_rsv_chans,
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.rsv_slots = da850_dma0_rsv_slots,
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};
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static struct edma_rsv_info da850_edma_cc1_rsv = {
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.rsv_chans = da850_dma1_rsv_chans,
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.rsv_slots = da850_dma1_rsv_slots,
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};
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static struct edma_rsv_info *da850_edma_rsv[2] = {
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&da850_edma_cc0_rsv,
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&da850_edma_cc1_rsv,
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};
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static const short hawk_mmcsd0_pins[] = {
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DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
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DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
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DA850_GPIO3_12, DA850_GPIO3_13,
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-1
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};
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#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
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#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
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static struct gpiod_lookup_table mmc_gpios_table = {
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.dev_id = "da830-mmc.0",
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.table = {
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GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_CD_PIN, "cd",
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GPIO_ACTIVE_LOW),
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GPIO_LOOKUP("davinci_gpio", DA850_HAWK_MMCSD_WP_PIN, "wp",
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GPIO_ACTIVE_LOW),
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},
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};
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static struct davinci_mmc_config da850_mmc_config = {
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.wires = 4,
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.max_freq = 50000000,
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.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
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};
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static __init void omapl138_hawk_mmc_init(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
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if (ret) {
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pr_warn("%s: MMC/SD0 mux setup failed: %d\n", __func__, ret);
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return;
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}
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gpiod_add_lookup_table(&mmc_gpios_table);
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ret = da8xx_register_mmcsd0(&da850_mmc_config);
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if (ret) {
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pr_warn("%s: MMC/SD0 registration failed: %d\n", __func__, ret);
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goto mmc_setup_mmcsd_fail;
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}
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return;
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mmc_setup_mmcsd_fail:
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gpiod_remove_lookup_table(&mmc_gpios_table);
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}
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static struct mtd_partition omapl138_hawk_nandflash_partition[] = {
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{
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.name = "u-boot env",
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.offset = 0,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "u-boot",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_512K,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "free space",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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},
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};
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static struct davinci_aemif_timing omapl138_hawk_nandflash_timing = {
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.wsetup = 24,
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.wstrobe = 21,
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.whold = 14,
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.rsetup = 19,
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.rstrobe = 50,
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.rhold = 0,
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.ta = 20,
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};
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static struct davinci_nand_pdata omapl138_hawk_nandflash_data = {
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.core_chipsel = 1,
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.parts = omapl138_hawk_nandflash_partition,
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.nr_parts = ARRAY_SIZE(omapl138_hawk_nandflash_partition),
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.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
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.ecc_bits = 4,
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.bbt_options = NAND_BBT_USE_FLASH,
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.options = NAND_BUSWIDTH_16,
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.timing = &omapl138_hawk_nandflash_timing,
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.mask_chipsel = 0,
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.mask_ale = 0,
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.mask_cle = 0,
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};
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static struct resource omapl138_hawk_nandflash_resource[] = {
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{
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.start = DA8XX_AEMIF_CS3_BASE,
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.end = DA8XX_AEMIF_CS3_BASE + SZ_32M,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = DA8XX_AEMIF_CTL_BASE,
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.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct resource omapl138_hawk_aemif_resource[] = {
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{
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.start = DA8XX_AEMIF_CTL_BASE,
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.end = DA8XX_AEMIF_CTL_BASE + SZ_32K,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct aemif_abus_data omapl138_hawk_aemif_abus_data[] = {
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{
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.cs = 3,
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}
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};
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static struct platform_device omapl138_hawk_aemif_devices[] = {
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{
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.name = "davinci_nand",
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.id = -1,
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.dev = {
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.platform_data = &omapl138_hawk_nandflash_data,
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},
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.resource = omapl138_hawk_nandflash_resource,
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.num_resources = ARRAY_SIZE(omapl138_hawk_nandflash_resource),
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}
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};
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static struct aemif_platform_data omapl138_hawk_aemif_pdata = {
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.cs_offset = 2,
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.abus_data = omapl138_hawk_aemif_abus_data,
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.num_abus_data = ARRAY_SIZE(omapl138_hawk_aemif_abus_data),
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.sub_devices = omapl138_hawk_aemif_devices,
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.num_sub_devices = ARRAY_SIZE(omapl138_hawk_aemif_devices),
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};
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static struct platform_device omapl138_hawk_aemif_device = {
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.name = "ti-aemif",
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.id = -1,
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.dev = {
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.platform_data = &omapl138_hawk_aemif_pdata,
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},
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.resource = omapl138_hawk_aemif_resource,
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.num_resources = ARRAY_SIZE(omapl138_hawk_aemif_resource),
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};
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static const short omapl138_hawk_nand_pins[] = {
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DA850_EMA_WAIT_1, DA850_NEMA_OE, DA850_NEMA_WE, DA850_NEMA_CS_3,
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DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
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DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
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DA850_EMA_D_8, DA850_EMA_D_9, DA850_EMA_D_10, DA850_EMA_D_11,
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DA850_EMA_D_12, DA850_EMA_D_13, DA850_EMA_D_14, DA850_EMA_D_15,
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DA850_EMA_A_1, DA850_EMA_A_2,
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-1
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};
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static int omapl138_hawk_register_aemif(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(omapl138_hawk_nand_pins);
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if (ret)
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pr_warn("%s: NAND mux setup failed: %d\n", __func__, ret);
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return platform_device_register(&omapl138_hawk_aemif_device);
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}
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static const short da850_hawk_usb11_pins[] = {
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DA850_GPIO2_4, DA850_GPIO6_13,
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-1
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};
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static struct regulator_consumer_supply hawk_usb_supplies[] = {
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REGULATOR_SUPPLY("vbus", NULL),
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};
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static struct regulator_init_data hawk_usb_vbus_data = {
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.consumer_supplies = hawk_usb_supplies,
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.num_consumer_supplies = ARRAY_SIZE(hawk_usb_supplies),
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.constraints = {
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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};
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static struct fixed_voltage_config hawk_usb_vbus = {
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.supply_name = "vbus",
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.microvolts = 3300000,
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.init_data = &hawk_usb_vbus_data,
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};
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static struct platform_device hawk_usb_vbus_device = {
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.name = "reg-fixed-voltage",
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.id = 0,
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.dev = {
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.platform_data = &hawk_usb_vbus,
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},
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};
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static struct gpiod_lookup_table hawk_usb_oc_gpio_lookup = {
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.dev_id = "ohci-da8xx",
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.table = {
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GPIO_LOOKUP("davinci_gpio", DA850_USB1_OC_PIN, "oc", 0),
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{ }
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},
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};
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static struct gpiod_lookup_table hawk_usb_vbus_gpio_lookup = {
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.dev_id = "reg-fixed-voltage.0",
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.table = {
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GPIO_LOOKUP("davinci_gpio", DA850_USB1_VBUS_PIN, NULL, 0),
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{ }
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},
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};
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static struct gpiod_lookup_table *hawk_usb_gpio_lookups[] = {
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&hawk_usb_oc_gpio_lookup,
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&hawk_usb_vbus_gpio_lookup,
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};
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static struct da8xx_ohci_root_hub omapl138_hawk_usb11_pdata = {
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/* TPS2087 switch @ 5V */
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.potpgt = (3 + 1) / 2, /* 3 ms max */
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};
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static __init void omapl138_hawk_usb_init(void)
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{
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int ret;
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ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
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if (ret) {
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pr_warn("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret);
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return;
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}
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ret = da8xx_register_usb_phy_clocks();
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if (ret)
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pr_warn("%s: USB PHY CLK registration failed: %d\n",
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__func__, ret);
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gpiod_add_lookup_tables(hawk_usb_gpio_lookups,
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ARRAY_SIZE(hawk_usb_gpio_lookups));
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ret = da8xx_register_usb_phy();
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if (ret)
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pr_warn("%s: USB PHY registration failed: %d\n",
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__func__, ret);
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ret = platform_device_register(&hawk_usb_vbus_device);
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if (ret) {
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pr_warn("%s: Unable to register the vbus supply\n", __func__);
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return;
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}
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ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
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if (ret)
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pr_warn("%s: USB 1.1 registration failed: %d\n", __func__, ret);
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return;
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}
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static __init void omapl138_hawk_init(void)
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{
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int ret;
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da850_register_clocks();
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ret = da850_register_gpio();
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if (ret)
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pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
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davinci_serial_init(da8xx_serial_device);
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omapl138_hawk_config_emac();
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ret = da850_register_edma(da850_edma_rsv);
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if (ret)
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pr_warn("%s: EDMA registration failed: %d\n", __func__, ret);
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omapl138_hawk_mmc_init();
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omapl138_hawk_usb_init();
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ret = omapl138_hawk_register_aemif();
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if (ret)
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pr_warn("%s: aemif registration failed: %d\n", __func__, ret);
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ret = da8xx_register_watchdog();
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if (ret)
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pr_warn("%s: watchdog registration failed: %d\n",
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__func__, ret);
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ret = da8xx_register_rproc();
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if (ret)
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pr_warn("%s: dsp/rproc registration failed: %d\n",
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__func__, ret);
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regulator_has_full_constraints();
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}
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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static int __init omapl138_hawk_console_init(void)
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{
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if (!machine_is_omapl138_hawkboard())
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return 0;
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return add_preferred_console("ttyS", 2, "115200");
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}
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console_initcall(omapl138_hawk_console_init);
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#endif
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static void __init omapl138_hawk_map_io(void)
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{
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da850_init();
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}
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MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
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.atag_offset = 0x100,
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.map_io = omapl138_hawk_map_io,
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.init_irq = da850_init_irq,
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.init_time = da850_init_time,
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.init_machine = omapl138_hawk_init,
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.init_late = davinci_init_late,
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.dma_zone_size = SZ_128M,
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.reserve = da8xx_rproc_reserve_cma,
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MACHINE_END
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