1 /*
2 * Copyright (C) 2018 Marvell International Ltd.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 * https://spdx.org/licenses
6 */
7
8 #include <lib/mmio.h>
9
10 #include <armada_common.h>
11 #include <dram_win.h>
12 #include <io_addr_dec.h>
13 #include <marvell_plat_priv.h>
14 #include <plat_marvell.h>
15
16 /* This routine does MPP initialization */
marvell_bl31_mpp_init(void)17 static void marvell_bl31_mpp_init(void)
18 {
19 mmio_clrbits_32(MVEBU_NB_GPIO_SEL_REG, 1 << MVEBU_GPIO_TW1_GPIO_EN_OFF);
20
21 /* Set hidden GPIO setting for SPI.
22 * In north_bridge_pin_out_en_high register 13804,
23 * bit 28 is the one which enables CS, CLK pins to be
24 * output, need to set it to 1.
25 * The initial value of this bit is 1, but in UART boot mode
26 * initialization, this bit is disabled and the SPI CS and CLK pins
27 * are used for downloading image purpose; so after downloading,
28 * we should set this bit to 1 again to enable SPI CS and CLK pins.
29 * And anyway, this bit value should be 1 in all modes,
30 * so here we does not judge boot mode and set this bit to 1 always.
31 */
32 mmio_setbits_32(MVEBU_NB_GPIO_OUTPUT_EN_HIGH_REG,
33 1 << MVEBU_GPIO_NB_SPI_PIN_MODE_OFF);
34 }
35
36 /* This function overruns the same function in marvell_bl31_setup.c */
bl31_plat_arch_setup(void)37 void bl31_plat_arch_setup(void)
38 {
39 struct dec_win_config *io_dec_map;
40 uint32_t dec_win_num;
41 struct dram_win_map dram_wins_map;
42
43 marvell_bl31_plat_arch_setup();
44
45 /* MPP init */
46 marvell_bl31_mpp_init();
47
48 /* initialize the timer for delay functionality */
49 plat_delay_timer_init();
50
51 /* CPU address decoder windows initialization. */
52 cpu_wins_init();
53
54 /* fetch CPU-DRAM window mapping information by reading
55 * CPU-DRAM decode windows (only the enabled ones)
56 */
57 dram_win_map_build(&dram_wins_map);
58
59 /* Get IO address decoder windows */
60 if (marvell_get_io_dec_win_conf(&io_dec_map, &dec_win_num)) {
61 printf("No IO address decoder windows configurations found!\n");
62 return;
63 }
64
65 /* IO address decoder init */
66 if (init_io_addr_dec(&dram_wins_map, io_dec_map, dec_win_num)) {
67 printf("IO address decoder windows initialization failed!\n");
68 return;
69 }
70 }
71