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Albert ARIBAUD \(3ADEV\)d275c402015-02-03 18:13:14 +01001/*
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
26DECLARE_GLOBAL_DATA_PTR;
27
28/*
29 * MUSB port on OMAP3EVM Rev >= E requires extvbus programming.
30 */
31u8 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 */
44int 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 */
60void set_muxconf_regs(void)
61{
62 MUX_CAIRO();
63}
64
65#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
66int 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 */
82void 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
93static const struct ns16550_platdata cairo_serial = {
94 OMAP34XX_UART2,
95 2,
96 V_NS16550_CLK
97};
98
99U_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
106int spl_start_uboot(void)
107{
108 return 1;
109}
110#endif