123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * board/renesas/silk/silk_spl.c
- *
- * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
- */
- #include <common.h>
- #include <cpu_func.h>
- #include <malloc.h>
- #include <dm/platform_data/serial_sh.h>
- #include <asm/processor.h>
- #include <asm/mach-types.h>
- #include <asm/io.h>
- #include <linux/errno.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/gpio.h>
- #include <asm/arch/rmobile.h>
- #include <asm/arch/rcar-mstp.h>
- #include <spl.h>
- #define TMU0_MSTP125 BIT(25)
- #define SCIF2_MSTP719 BIT(19)
- #define QSPI_MSTP917 BIT(17)
- #define SD1CKCR 0xE6150078
- #define SD_97500KHZ 0x7
- struct reg_config {
- u16 off;
- u32 val;
- };
- static void dbsc_wait(u16 reg)
- {
- static const u32 dbsc3_0_base = DBSC3_0_BASE;
- while (!(readl(dbsc3_0_base + reg) & BIT(0)))
- ;
- }
- static void spl_init_sys(void)
- {
- u32 r0 = 0;
- writel(0xa5a5a500, 0xe6020004);
- writel(0xa5a5a500, 0xe6030004);
- asm volatile(
- /* ICIALLU - Invalidate I$ to PoU */
- "mcr 15, 0, %0, cr7, cr5, 0 \n"
- /* BPIALL - Invalidate branch predictors */
- "mcr 15, 0, %0, cr7, cr5, 6 \n"
- /* Set SCTLR[IZ] */
- "mrc 15, 0, %0, cr1, cr0, 0 \n"
- "orr %0, #0x1800 \n"
- "mcr 15, 0, %0, cr1, cr0, 0 \n"
- "isb sy \n"
- :"=r"(r0));
- }
- static void spl_init_pfc(void)
- {
- static const struct reg_config pfc_with_unlock[] = {
- { 0x0090, 0x00018040 },
- { 0x0094, 0x00000000 },
- { 0x0098, 0x00000000 },
- { 0x0020, 0x94000000 },
- { 0x0024, 0x00000006 },
- { 0x0028, 0x40000000 },
- { 0x002c, 0x00000155 },
- { 0x0030, 0x00000002 },
- { 0x0034, 0x00000000 },
- { 0x0038, 0x00000000 },
- { 0x003c, 0x00000000 },
- { 0x0040, 0x60000000 },
- { 0x0044, 0x36dab6db },
- { 0x0048, 0x926da012 },
- { 0x004c, 0x0008c383 },
- { 0x0050, 0x00000000 },
- { 0x0054, 0x00000140 },
- { 0x0004, 0xffffffff },
- { 0x0008, 0x00ec3fff },
- { 0x000c, 0x5bffffff },
- { 0x0010, 0x01bfe1ff },
- { 0x0014, 0x5bffffff },
- { 0x0018, 0x0f4b200f },
- { 0x001c, 0x03ffffff },
- };
- static const struct reg_config pfc_without_unlock[] = {
- { 0x0100, 0x00000000 },
- { 0x0104, 0x4203fdf0 },
- { 0x0108, 0x00000000 },
- { 0x010c, 0x159007ff },
- { 0x0110, 0x80000000 },
- { 0x0114, 0x00de481f },
- { 0x0118, 0x00000000 },
- };
- static const struct reg_config pfc_with_unlock2[] = {
- { 0x0060, 0xffffffff },
- { 0x0064, 0xfffff000 },
- { 0x0068, 0x55555500 },
- { 0x006c, 0xffffff00 },
- { 0x0070, 0x00000000 },
- };
- static const u32 pfc_base = 0xe6060000;
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(pfc_with_unlock); i++) {
- writel(~pfc_with_unlock[i].val, pfc_base);
- writel(pfc_with_unlock[i].val,
- pfc_base | pfc_with_unlock[i].off);
- }
- for (i = 0; i < ARRAY_SIZE(pfc_without_unlock); i++)
- writel(pfc_without_unlock[i].val,
- pfc_base | pfc_without_unlock[i].off);
- for (i = 0; i < ARRAY_SIZE(pfc_with_unlock2); i++) {
- writel(~pfc_with_unlock2[i].val, pfc_base);
- writel(pfc_with_unlock2[i].val,
- pfc_base | pfc_with_unlock2[i].off);
- }
- }
- static void spl_init_gpio(void)
- {
- static const u16 gpio_offs[] = {
- 0x1000, 0x2000, 0x3000, 0x4000
- };
- static const struct reg_config gpio_set[] = {
- { 0x2000, 0x24000000 },
- { 0x4000, 0xa4000000 },
- { 0x5000, 0x0084c000 },
- };
- static const struct reg_config gpio_clr[] = {
- { 0x1000, 0x01000000 },
- { 0x2000, 0x24000000 },
- { 0x3000, 0x00000000 },
- { 0x4000, 0xa4000000 },
- { 0x5000, 0x00044380 },
- };
- static const u32 gpio_base = 0xe6050000;
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(gpio_offs); i++)
- writel(0, gpio_base | 0x20 | gpio_offs[i]);
- writel(BIT(23), gpio_base | 0x5020);
- for (i = 0; i < ARRAY_SIZE(gpio_offs); i++)
- writel(0, gpio_base | 0x00 | gpio_offs[i]);
- writel(BIT(23), gpio_base | 0x5000);
- for (i = 0; i < ARRAY_SIZE(gpio_set); i++)
- writel(gpio_set[i].val, gpio_base | 0x08 | gpio_set[i].off);
- for (i = 0; i < ARRAY_SIZE(gpio_clr); i++)
- writel(gpio_clr[i].val, gpio_base | 0x04 | gpio_clr[i].off);
- }
- static void spl_init_lbsc(void)
- {
- static const struct reg_config lbsc_config[] = {
- { 0x00, 0x00000020 },
- { 0x08, 0x00002020 },
- { 0x30, 0x2a103320 },
- { 0x38, 0xff70ff70 },
- };
- static const u16 lbsc_offs[] = {
- 0x80, 0x84, 0x88, 0x8c, 0xa0, 0xc0, 0xc4, 0xc8
- };
- static const u32 lbsc_base = 0xfec00200;
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(lbsc_config); i++) {
- writel(lbsc_config[i].val,
- lbsc_base | lbsc_config[i].off);
- writel(lbsc_config[i].val,
- lbsc_base | (lbsc_config[i].off + 4));
- }
- for (i = 0; i < ARRAY_SIZE(lbsc_offs); i++)
- writel(0, lbsc_base | lbsc_offs[i]);
- }
- static void spl_init_dbsc(void)
- {
- static const struct reg_config dbsc_config1[] = {
- { 0x0018, 0x21000000 },
- { 0x0018, 0x11000000 },
- { 0x0018, 0x10000000 },
- { 0x0280, 0x0000a55a },
- { 0x0290, 0x00000001 },
- { 0x02a0, 0x80000000 },
- { 0x0290, 0x00000004 },
- };
- static const struct reg_config dbsc_config2[] = {
- { 0x0290, 0x00000006 },
- { 0x02a0, 0x0005c000 },
- };
- static const struct reg_config dbsc_config3r2[] = {
- { 0x0290, 0x0000000f },
- { 0x02a0, 0x00181224 },
- };
- static const struct reg_config dbsc_config4[] = {
- { 0x0290, 0x00000010 },
- { 0x02a0, 0xf004649b },
- { 0x0290, 0x00000061 },
- { 0x02a0, 0x0000006d },
- { 0x0290, 0x00000001 },
- { 0x02a0, 0x00000073 },
- { 0x0020, 0x00000007 },
- { 0x0024, 0x0f030a02 },
- { 0x0030, 0x00000001 },
- { 0x00b0, 0x00000000 },
- { 0x0040, 0x00000009 },
- { 0x0044, 0x00000007 },
- { 0x0048, 0x00000000 },
- { 0x0050, 0x00000009 },
- { 0x0054, 0x000a0009 },
- { 0x0058, 0x00000021 },
- { 0x005c, 0x00000018 },
- { 0x0060, 0x00000005 },
- { 0x0064, 0x00000020 },
- { 0x0068, 0x00000007 },
- { 0x006c, 0x0000000a },
- { 0x0070, 0x00000009 },
- { 0x0074, 0x00000010 },
- { 0x0078, 0x000000ae },
- { 0x007c, 0x00140005 },
- { 0x0080, 0x00050004 },
- { 0x0084, 0x50213005 },
- { 0x0088, 0x000c0000 },
- { 0x008c, 0x00000200 },
- { 0x0090, 0x00000040 },
- { 0x0100, 0x00000001 },
- { 0x00c0, 0x00020001 },
- { 0x00c8, 0x20042004 },
- { 0x0380, 0x00020003 },
- { 0x0390, 0x0000001f },
- };
- static const struct reg_config dbsc_config5[] = {
- { 0x0244, 0x00000011 },
- { 0x0290, 0x00000003 },
- { 0x02a0, 0x0300c4e1 },
- { 0x0290, 0x00000023 },
- { 0x02a0, 0x00fcb6d0 },
- { 0x0290, 0x00000011 },
- { 0x02a0, 0x1000040b },
- { 0x0290, 0x00000012 },
- { 0x02a0, 0x85589955 },
- { 0x0290, 0x00000013 },
- { 0x02a0, 0x1a852400 },
- { 0x0290, 0x00000014 },
- { 0x02a0, 0x300210b4 },
- { 0x0290, 0x00000015 },
- { 0x02a0, 0x00000b50 },
- { 0x0290, 0x00000016 },
- { 0x02a0, 0x00000006 },
- { 0x0290, 0x00000017 },
- { 0x02a0, 0x00000010 },
- { 0x0290, 0x0000001a },
- { 0x02a0, 0x910035c7 },
- { 0x0290, 0x00000004 },
- };
- static const struct reg_config dbsc_config6[] = {
- { 0x0290, 0x00000001 },
- { 0x02a0, 0x00000181 },
- { 0x0018, 0x11000000 },
- { 0x0290, 0x00000004 },
- };
- static const struct reg_config dbsc_config7[] = {
- { 0x0290, 0x00000001 },
- { 0x02a0, 0x0000fe01 },
- { 0x0304, 0x00000000 },
- { 0x00f4, 0x01004c20 },
- { 0x00f8, 0x012c00be },
- { 0x00e0, 0x00000140 },
- { 0x00e4, 0x00081450 },
- { 0x00e8, 0x00010000 },
- { 0x0290, 0x00000004 },
- };
- static const struct reg_config dbsc_config8[] = {
- { 0x0014, 0x00000001 },
- { 0x0290, 0x00000010 },
- { 0x02a0, 0xf00464db },
- { 0x0010, 0x00000001 },
- { 0x0280, 0x00000000 },
- };
- static const u32 dbsc3_0_base = DBSC3_0_BASE;
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE(dbsc_config1); i++)
- writel(dbsc_config1[i].val, dbsc3_0_base | dbsc_config1[i].off);
- dbsc_wait(0x2a0);
- for (i = 0; i < ARRAY_SIZE(dbsc_config2); i++)
- writel(dbsc_config2[i].val, dbsc3_0_base | dbsc_config2[i].off);
- for (i = 0; i < ARRAY_SIZE(dbsc_config3r2); i++) {
- writel(dbsc_config3r2[i].val,
- dbsc3_0_base | dbsc_config3r2[i].off);
- }
- for (i = 0; i < ARRAY_SIZE(dbsc_config4); i++)
- writel(dbsc_config4[i].val, dbsc3_0_base | dbsc_config4[i].off);
- dbsc_wait(0x240);
- for (i = 0; i < ARRAY_SIZE(dbsc_config5); i++)
- writel(dbsc_config5[i].val, dbsc3_0_base | dbsc_config5[i].off);
- dbsc_wait(0x2a0);
- for (i = 0; i < ARRAY_SIZE(dbsc_config6); i++)
- writel(dbsc_config6[i].val, dbsc3_0_base | dbsc_config6[i].off);
- dbsc_wait(0x2a0);
- for (i = 0; i < ARRAY_SIZE(dbsc_config7); i++)
- writel(dbsc_config7[i].val, dbsc3_0_base | dbsc_config7[i].off);
- dbsc_wait(0x2a0);
- for (i = 0; i < ARRAY_SIZE(dbsc_config8); i++)
- writel(dbsc_config8[i].val, dbsc3_0_base | dbsc_config8[i].off);
- }
- static void spl_init_qspi(void)
- {
- mstp_clrbits_le32(MSTPSR9, SMSTPCR9, QSPI_MSTP917);
- static const u32 qspi_base = 0xe6b10000;
- writeb(0x08, qspi_base + 0x00);
- writeb(0x00, qspi_base + 0x01);
- writeb(0x06, qspi_base + 0x02);
- writeb(0x01, qspi_base + 0x0a);
- writeb(0x00, qspi_base + 0x0b);
- writeb(0x00, qspi_base + 0x0c);
- writeb(0x00, qspi_base + 0x0d);
- writeb(0x00, qspi_base + 0x0e);
- writew(0xe080, qspi_base + 0x10);
- writeb(0xc0, qspi_base + 0x18);
- writeb(0x00, qspi_base + 0x18);
- writeb(0x00, qspi_base + 0x08);
- writeb(0x48, qspi_base + 0x00);
- }
- void board_init_f(ulong dummy)
- {
- mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
- mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719);
- /* Set SD1 to the 97.5MHz */
- writel(SD_97500KHZ, SD1CKCR);
- spl_init_sys();
- spl_init_pfc();
- spl_init_gpio();
- spl_init_lbsc();
- spl_init_dbsc();
- spl_init_qspi();
- }
- void spl_board_init(void)
- {
- /* UART clocks enabled and gd valid - init serial console */
- preloader_console_init();
- }
- void board_boot_order(u32 *spl_boot_list)
- {
- const u32 jtag_magic = 0x1337c0de;
- const u32 load_magic = 0xb33fc0de;
- /*
- * If JTAG probe sets special word at 0xe6300020, then it must
- * put U-Boot into RAM and SPL will start it from RAM.
- */
- if (readl(CONFIG_SPL_TEXT_BASE + 0x20) == jtag_magic) {
- printf("JTAG boot detected!\n");
- while (readl(CONFIG_SPL_TEXT_BASE + 0x24) != load_magic)
- ;
- spl_boot_list[0] = BOOT_DEVICE_RAM;
- spl_boot_list[1] = BOOT_DEVICE_NONE;
- return;
- }
- /* Boot from SPI NOR with YMODEM UART fallback. */
- spl_boot_list[0] = BOOT_DEVICE_SPI;
- spl_boot_list[1] = BOOT_DEVICE_UART;
- spl_boot_list[2] = BOOT_DEVICE_NONE;
- }
- void reset_cpu(ulong addr)
- {
- }
|