diff options
Diffstat (limited to 'arch/arm/mach-kirkwood/openrd-setup.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/openrd-setup.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/openrd-setup.c b/arch/arm/mach-kirkwood/openrd-setup.c new file mode 100644 index 00000000..f69beeff --- /dev/null +++ b/arch/arm/mach-kirkwood/openrd-setup.c @@ -0,0 +1,248 @@ +/* + * arch/arm/mach-kirkwood/openrd-setup.c + * + * Marvell OpenRD (Base|Client|Ultimate) Board Setup + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> +#include <linux/ata_platform.h> +#include <linux/mv643xx_eth.h> +#include <linux/i2c.h> +#include <linux/gpio.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <mach/kirkwood.h> +#include <plat/mvsdio.h> +#include "common.h" +#include "mpp.h" + +static struct mtd_partition openrd_nand_parts[] = { + { + .name = "u-boot", + .offset = 0, + .size = SZ_1M, + .mask_flags = MTD_WRITEABLE + }, { + .name = "uImage", + .offset = MTDPART_OFS_NXTBLK, + .size = SZ_4M + }, { + .name = "root", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL + }, +}; + +static struct mv643xx_eth_platform_data openrd_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +static struct mv643xx_eth_platform_data openrd_ge01_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(24), +}; + +static struct mv_sata_platform_data openrd_sata_data = { + .n_ports = 2, +}; + +static struct mvsdio_platform_data openrd_mvsdio_data = { + .gpio_card_detect = 29, /* MPP29 used as SD card detect */ +}; + +static unsigned int openrd_mpp_config[] __initdata = { + MPP12_SD_CLK, + MPP13_SD_CMD, + MPP14_SD_D0, + MPP15_SD_D1, + MPP16_SD_D2, + MPP17_SD_D3, + MPP28_GPIO, + MPP29_GPIO, + MPP34_GPIO, + 0 +}; + +/* Configure MPP for UART1 */ +static unsigned int openrd_uart1_mpp_config[] __initdata = { + MPP13_UART1_TXD, + MPP14_UART1_RXD, + 0 +}; + +static struct i2c_board_info i2c_board_info[] __initdata = { + { + I2C_BOARD_INFO("cs42l51", 0x4a), + }, +}; + +static int __initdata uart1; + +static int __init sd_uart_selection(char *str) +{ + uart1 = -EINVAL; + + /* Default is SD. Change if required, for UART */ + if (!str) + return 0; + + if (!strncmp(str, "232", 3)) { + uart1 = 232; + } else if (!strncmp(str, "485", 3)) { + /* OpenRD-Base doesn't have RS485. Treat is as an + * unknown argument & just have default setting - + * which is SD */ + if (machine_is_openrd_base()) { + uart1 = -ENODEV; + return 1; + } + + uart1 = 485; + } + return 1; +} +/* Parse boot_command_line string kw_openrd_init_uart1=232/485 */ +__setup("kw_openrd_init_uart1=", sd_uart_selection); + +static int __init uart1_mpp_config(void) +{ + kirkwood_mpp_conf(openrd_uart1_mpp_config); + + if (gpio_request(34, "SD_UART1_SEL")) { + printk(KERN_ERR "GPIO request failed for SD/UART1 selection" + ", gpio: 34\n"); + return -EIO; + } + + if (gpio_request(28, "RS232_RS485_SEL")) { + printk(KERN_ERR "GPIO request failed for RS232/RS485 selection" + ", gpio# 28\n"); + gpio_free(34); + return -EIO; + } + + /* Select UART1 + * Pin # 34: 0 => UART1, 1 => SD */ + gpio_direction_output(34, 0); + + /* Select RS232 OR RS485 + * Pin # 28: 0 => RS232, 1 => RS485 */ + if (uart1 == 232) + gpio_direction_output(28, 0); + else + gpio_direction_output(28, 1); + + gpio_free(34); + gpio_free(28); + + return 0; +} + +static void __init openrd_init(void) +{ + /* + * Basic setup. Needs to be called early. + */ + kirkwood_init(); + kirkwood_mpp_conf(openrd_mpp_config); + + kirkwood_uart0_init(); + kirkwood_nand_init(ARRAY_AND_SIZE(openrd_nand_parts), 25); + + kirkwood_ehci_init(); + + if (machine_is_openrd_ultimate()) { + openrd_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0); + openrd_ge01_data.phy_addr = MV643XX_ETH_PHY_ADDR(1); + } + + kirkwood_ge00_init(&openrd_ge00_data); + if (!machine_is_openrd_base()) + kirkwood_ge01_init(&openrd_ge01_data); + + kirkwood_sata_init(&openrd_sata_data); + + kirkwood_i2c_init(); + + if (machine_is_openrd_client() || machine_is_openrd_ultimate()) { + i2c_register_board_info(0, i2c_board_info, + ARRAY_SIZE(i2c_board_info)); + kirkwood_audio_init(); + } + + if (uart1 <= 0) { + if (uart1 < 0) + printk(KERN_ERR "Invalid kernel parameter to select " + "UART1. Defaulting to SD. ERROR CODE: %d\n", + uart1); + + /* Select SD + * Pin # 34: 0 => UART1, 1 => SD */ + if (gpio_request(34, "SD_UART1_SEL")) { + printk(KERN_ERR "GPIO request failed for SD/UART1 " + "selection, gpio: 34\n"); + } else { + + gpio_direction_output(34, 1); + gpio_free(34); + kirkwood_sdio_init(&openrd_mvsdio_data); + } + } else { + if (!uart1_mpp_config()) + kirkwood_uart1_init(); + } +} + +static int __init openrd_pci_init(void) +{ + if (machine_is_openrd_base() || + machine_is_openrd_client() || + machine_is_openrd_ultimate()) + kirkwood_pcie_init(KW_PCIE0); + + return 0; +} +subsys_initcall(openrd_pci_init); + +#ifdef CONFIG_MACH_OPENRD_BASE +MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board") + /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */ + .boot_params = 0x00000100, + .init_machine = openrd_init, + .map_io = kirkwood_map_io, + .init_early = kirkwood_init_early, + .init_irq = kirkwood_init_irq, + .timer = &kirkwood_timer, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_OPENRD_CLIENT +MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board") + /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */ + .boot_params = 0x00000100, + .init_machine = openrd_init, + .map_io = kirkwood_map_io, + .init_early = kirkwood_init_early, + .init_irq = kirkwood_init_irq, + .timer = &kirkwood_timer, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_OPENRD_ULTIMATE +MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board") + /* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */ + .boot_params = 0x00000100, + .init_machine = openrd_init, + .map_io = kirkwood_map_io, + .init_early = kirkwood_init_early, + .init_irq = kirkwood_init_irq, + .timer = &kirkwood_timer, +MACHINE_END +#endif |