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git01.mediatek.com / filogic / uboot / 26dc25bad3952204705b4f9893759bab9dc9c6cc / . / board / siemens / taurus / taurus.c
blob: 673b3029a66f9e4bcaa8e953ef5bc9be2a057d27 [file] [log] [blame]
Heiko Schochercfcad352013-12-02 07:47:22 +0100[diff] [blame]1/*
2 * Board functions for Siemens TAURUS (AT91SAM9G20) based boards
3 * (C) Copyright Siemens AG
4 *
5 * Based on:
6 * U-Boot file: board/atmel/at91sam9260ek/at91sam9260ek.c
7 *
8 * (C) Copyright 2007-2008
9 * Stelian Pop <stelian@popies.net>
10 * Lead Tech Design <www.leadtechdesign.com>
11 *
12 * SPDX-License-Identifier: GPL-2.0+
13 */
14
15#include <common.h>
16#include <asm/io.h>
17#include <asm/arch/at91sam9260_matrix.h>
18#include <asm/arch/at91sam9_smc.h>
19#include <asm/arch/at91_common.h>
20#include <asm/arch/at91_pmc.h>
21#include <asm/arch/at91_rstc.h>
22#include <asm/arch/gpio.h>
23#include <asm/arch/at91sam9_sdramc.h>
24#include <atmel_mci.h>
25
26#include <net.h>
27#include <netdev.h>
28
29DECLARE_GLOBAL_DATA_PTR;
30
31#ifdef CONFIG_CMD_NAND
32static void taurus_nand_hw_init(void)
33{
34 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
35 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
36 unsigned long csa;
37
38 /* Assign CS3 to NAND/SmartMedia Interface */
39 csa = readl(&matrix->ebicsa);
40 csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
41 writel(csa, &matrix->ebicsa);
42
43 /* Configure SMC CS3 for NAND/SmartMedia */
44 writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
45 AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
46 &smc->cs[3].setup);
47 writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
48 AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(3),
49 &smc->cs[3].pulse);
50 writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
51 &smc->cs[3].cycle);
52 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
53 AT91_SMC_MODE_EXNW_DISABLE |
54 AT91_SMC_MODE_DBW_8 |
55 AT91_SMC_MODE_TDF_CYCLE(3),
56 &smc->cs[3].mode);
57
58 /* Configure RDY/BSY */
59 at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
60
61 /* Enable NandFlash */
62 at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
63}
64#endif
65
66#ifdef CONFIG_MACB
67static void taurus_macb_hw_init(void)
68{
69 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
70
71 /* Enable EMAC clock */
72 writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
73
74 /*
75 * Disable pull-up on:
76 * RXDV (PA17) => PHY normal mode (not Test mode)
77 * ERX0 (PA14) => PHY ADDR0
78 * ERX1 (PA15) => PHY ADDR1
79 * ERX2 (PA25) => PHY ADDR2
80 * ERX3 (PA26) => PHY ADDR3
81 * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
82 *
83 * PHY has internal pull-down
84 */
85 at91_set_pio_pullup(AT91_PIO_PORTA, 14, 0);
86 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
87 at91_set_pio_pullup(AT91_PIO_PORTA, 17, 0);
88 at91_set_pio_pullup(AT91_PIO_PORTA, 25, 0);
89 at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0);
90 at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0);
91
92 at91_phy_reset();
93
94 at91_set_gpio_input(AT91_PIN_PA25, 1); /* ERST tri-state */
95
96 /* Re-enable pull-up */
97 at91_set_pio_pullup(AT91_PIO_PORTA, 14, 1);
98 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
99 at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
100 at91_set_pio_pullup(AT91_PIO_PORTA, 25, 1);
101 at91_set_pio_pullup(AT91_PIO_PORTA, 26, 1);
102 at91_set_pio_pullup(AT91_PIO_PORTA, 28, 1);
103
104 /* Initialize EMAC=MACB hardware */
105 at91_macb_hw_init();
106}
107#endif
108
109#ifdef CONFIG_GENERIC_ATMEL_MCI
110int board_mmc_init(bd_t *bd)
111{
112 at91_mci_hw_init();
113
114 return atmel_mci_init((void *)ATMEL_BASE_MCI);
115}
116#endif
117
118int board_early_init_f(void)
119{
120 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
121
122 /* Enable clocks for all PIOs */
123 writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
124 (1 << ATMEL_ID_PIOC),
125 &pmc->pcer);
126
127 return 0;
128}
129
130int board_init(void)
131{
132 /* adress of boot parameters */
133 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
134
135 at91_seriald_hw_init();
136#ifdef CONFIG_CMD_NAND
137 taurus_nand_hw_init();
138#endif
139#ifdef CONFIG_MACB
140 taurus_macb_hw_init();
141#endif
142
143 return 0;
144}
145
146int dram_init(void)
147{
148 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
149 CONFIG_SYS_SDRAM_SIZE);
150 return 0;
151}
152
153int board_eth_init(bd_t *bis)
154{
155 int rc = 0;
156#ifdef CONFIG_MACB
157 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
158#endif
159 return rc;
160}