| Albert ARIBAUD \(3ADEV\) | d275c40 | 2015-02-03 18:13:14 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 DENX |
| 3 | * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr> |
| 4 | * |
| 5 | * Derived from code written by Robert Aigner (ra@spiid.net) |
| 6 | * |
| 7 | * Itself derived from Beagle Board and 3430 SDP code by |
| 8 | * Richard Woodruff <r-woodruff2@ti.com> |
| 9 | * Syed Mohammed Khasim <khasim@ti.com> |
| 10 | * |
| 11 | * SPDX-License-Identifier: GPL-2.0+ |
| 12 | */ |
| 13 | #include <common.h> |
| 14 | #include <dm.h> |
| 15 | #include <netdev.h> |
| 16 | #include <ns16550.h> |
| 17 | #include <asm/io.h> |
| 18 | #include <asm/arch/mem.h> |
| 19 | #include <asm/arch/mux.h> |
| 20 | #include <asm/arch/sys_proto.h> |
| 21 | #include <i2c.h> |
| 22 | #include <asm/mach-types.h> |
| 23 | #include <asm/omap_mmc.h> |
| 24 | #include "cairo.h" |
| 25 | |
| 26 | DECLARE_GLOBAL_DATA_PTR; |
| 27 | |
| 28 | /* |
| 29 | * MUSB port on OMAP3EVM Rev >= E requires extvbus programming. |
| 30 | */ |
| 31 | u8 omap3_evm_need_extvbus(void) |
| 32 | { |
| 33 | u8 retval = 0; |
| 34 | |
| 35 | /* TODO: verify if cairo handheld platform needs extvbus programming */ |
| 36 | |
| 37 | return retval; |
| 38 | } |
| 39 | |
| 40 | /* |
| 41 | * Routine: board_init |
| 42 | * Description: Early hardware init. |
| 43 | */ |
| 44 | int board_init(void) |
| 45 | { |
| 46 | gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ |
| 47 | /* board id for Linux */ |
| 48 | gd->bd->bi_arch_number = MACH_TYPE_OMAP3_CAIRO; |
| 49 | /* boot param addr */ |
| 50 | gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); |
| 51 | return 0; |
| 52 | } |
| 53 | |
| 54 | /* |
| 55 | * Routine: set_muxconf_regs |
| 56 | * Description: Setting up the configuration Mux registers specific to the |
| 57 | * hardware. Many pins need to be moved from protect to primary |
| 58 | * mode. |
| 59 | */ |
| 60 | void set_muxconf_regs(void) |
| 61 | { |
| 62 | MUX_CAIRO(); |
| 63 | } |
| 64 | |
| 65 | #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) |
| 66 | int board_mmc_init(bd_t *bis) |
| 67 | { |
| 68 | return omap_mmc_init(0, 0, 0, -1, -1); |
| 69 | } |
| 70 | #endif |
| 71 | |
| 72 | #ifdef CONFIG_SPL_BUILD |
| 73 | /* |
| 74 | * Routine: get_board_mem_timings |
| 75 | * Description: If we use SPL then there is no x-loader nor config header |
| 76 | * so we have to setup the DDR timings ourself on the first bank. This |
| 77 | * provides the timing values back to the function that configures |
| 78 | * the memory. |
| 79 | * |
| 80 | * The Cairo board uses SAMSUNG DDR - K4X51163PG-FGC6 |
| 81 | */ |
| 82 | void get_board_mem_timings(struct board_sdrc_timings *timings) |
| 83 | { |
| 84 | timings->sharing = SAMSUNG_SHARING; |
| 85 | timings->mcfg = SAMSUNG_V_MCFG_165(128 << 20); |
| 86 | timings->ctrla = SAMSUNG_V_ACTIMA_165; |
| 87 | timings->ctrlb = SAMSUNG_V_ACTIMB_165; |
| 88 | timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; |
| 89 | timings->mr = SAMSUNG_V_MR_165; |
| 90 | } |
| 91 | #endif |
| 92 | |
| 93 | static const struct ns16550_platdata cairo_serial = { |
| 94 | OMAP34XX_UART2, |
| 95 | 2, |
| 96 | V_NS16550_CLK |
| 97 | }; |
| 98 | |
| 99 | U_BOOT_DEVICE(cairo_uart) = { |
| 100 | "serial_omap", |
| 101 | &cairo_serial |
| 102 | }; |
| 103 | |
| 104 | /* force SPL booting into U-Boot, not Linux */ |
| 105 | #ifdef CONFIG_SPL_OS_BOOT |
| 106 | int spl_start_uboot(void) |
| 107 | { |
| 108 | return 1; |
| 109 | } |
| 110 | #endif |