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-rw-r--r--board/renesas/stout/stout_spl.c481
1 files changed, 481 insertions, 0 deletions
diff --git a/board/renesas/stout/stout_spl.c b/board/renesas/stout/stout_spl.c
new file mode 100644
index 0000000..1b06175
--- /dev/null
+++ b/board/renesas/stout/stout_spl.c
@@ -0,0 +1,481 @@
+/*
+ * board/renesas/stout/stout_spl.c
+ *
+ * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.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 SCIFA0_MSTP204 BIT(4)
+#define QSPI_MSTP917 BIT(17)
+
+#define SD2CKCR 0xE615026C
+#define SD_97500KHZ 0x7
+
+#ifdef CONFIG_TPL_BUILD
+struct reg_config {
+ u16 off;
+ u32 val;
+};
+
+static void dbsc_wait(u16 reg)
+{
+ static const u32 dbsc3_0_base = DBSC3_0_BASE;
+ static const u32 dbsc3_1_base = DBSC3_0_BASE + 0x10000;
+
+ while (!(readl(dbsc3_0_base + reg) & BIT(0)))
+ ;
+
+ while (!(readl(dbsc3_1_base + reg) & BIT(0)))
+ ;
+}
+
+static void tpl_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 tpl_init_pfc(void)
+{
+ static const struct reg_config pfc_with_unlock[] = {
+ { 0x0090, 0x00140300 },
+ { 0x0094, 0x09500000 },
+ { 0x0098, 0xc0000084 },
+ { 0x0020, 0x01a33492 },
+ { 0x0024, 0x10000000 },
+ { 0x0028, 0x08449252 },
+ { 0x002c, 0x2925b322 },
+ { 0x0030, 0x0c311249 },
+ { 0x0034, 0x10124000 },
+ { 0x0038, 0x00001295 },
+ { 0x003c, 0x50890000 },
+ { 0x0040, 0x0eaa56aa },
+ { 0x0044, 0x55550000 },
+ { 0x0048, 0x00000005 },
+ { 0x004c, 0x54800000 },
+ { 0x0050, 0x3736db55 },
+ { 0x0054, 0x29148da3 },
+ { 0x0058, 0x48c446e1 },
+ { 0x005c, 0x2a3a54dc },
+ { 0x0160, 0x00000023 },
+ { 0x0004, 0xfca0ffff },
+ { 0x0008, 0x3fbffbf0 },
+ { 0x000c, 0x3ffdffff },
+ { 0x0010, 0x00ffffff },
+ { 0x0014, 0xfc3ffff3 },
+ { 0x0018, 0xe4fdfff7 },
+ };
+
+ static const struct reg_config pfc_without_unlock[] = {
+ { 0x0104, 0xffffbfff },
+ { 0x0108, 0xb1ffffe1 },
+ { 0x010c, 0xffffffff },
+ { 0x0110, 0xffffffff },
+ { 0x0114, 0xe047beab },
+ { 0x0118, 0x00000203 },
+ };
+
+ 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);
+}
+
+static void tpl_init_gpio(void)
+{
+ static const u16 gpio_offs[] = {
+ 0x1000, 0x3000, 0x4000, 0x5000
+ };
+
+ static const struct reg_config gpio_set[] = {
+ { 0x4000, 0x00c00000 },
+ { 0x5000, 0x63020000 },
+ };
+
+ static const struct reg_config gpio_clr[] = {
+ { 0x1000, 0x00000000 },
+ { 0x3000, 0x00000000 },
+ { 0x4000, 0x00c00000 },
+ { 0x5000, 0xe3020000 },
+ };
+
+ 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]);
+
+ for (i = 0; i < ARRAY_SIZE(gpio_offs); i++)
+ writel(0, gpio_base | 0x00 | gpio_offs[i]);
+
+ 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 tpl_init_lbsc(void)
+{
+ static const struct reg_config lbsc_config[] = {
+ { 0x00, 0x00000020 },
+ { 0x08, 0x00002020 },
+ { 0x30, 0x02150326 },
+ { 0x38, 0x077f077f },
+ };
+
+ static const u16 lbsc_offs[] = {
+ 0x80, 0x84, 0x88, 0x8c, 0xa0, 0xc0, 0xc4, 0xc8, 0x180
+ };
+
+ 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 tpl_init_dbsc(void)
+{
+ static const struct reg_config dbsc_config1[] = {
+ { 0x0280, 0x0000a55a },
+ { 0x0018, 0x21000000 },
+ { 0x0018, 0x11000000 },
+ { 0x0018, 0x10000000 },
+ { 0x0290, 0x00000001 },
+ { 0x02a0, 0x80000000 },
+ { 0x0290, 0x00000004 },
+ };
+
+ static const struct reg_config dbsc_config2[] = {
+ { 0x0290, 0x00000006 },
+ { 0x02a0, 0x0001c000 },
+ };
+
+ static const struct reg_config dbsc_config3r0d0[] = {
+ { 0x0290, 0x0000000f },
+ { 0x02a0, 0x00181885 },
+ { 0x0290, 0x00000070 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x00000080 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x00000090 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x000000a0 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x000000b0 },
+ { 0x02a0, 0x7c000880 },
+ { 0x0290, 0x000000c0 },
+ { 0x02a0, 0x7c000880 },
+ { 0x0290, 0x000000d0 },
+ { 0x02a0, 0x7c000880 },
+ { 0x0290, 0x000000e0 },
+ { 0x02a0, 0x7c000880 },
+ };
+
+ static const struct reg_config dbsc_config3r0d1[] = {
+ { 0x0290, 0x0000000f },
+ { 0x02a0, 0x00181885 },
+ { 0x0290, 0x00000070 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x00000080 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x00000090 },
+ { 0x02a0, 0x7c000887 },
+ { 0x0290, 0x000000a0 },
+ { 0x02a0, 0x7c000887 },
+ };
+
+ 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, 0x0000000b },
+ { 0x0044, 0x00000008 },
+ { 0x0048, 0x00000000 },
+ { 0x0050, 0x0000000b },
+ { 0x0054, 0x000c000b },
+ { 0x0058, 0x00000027 },
+ { 0x005c, 0x0000001c },
+ { 0x0060, 0x00000006 },
+ { 0x0064, 0x00000020 },
+ { 0x0068, 0x00000008 },
+ { 0x006c, 0x0000000c },
+ { 0x0070, 0x00000009 },
+ { 0x0074, 0x00000012 },
+ { 0x0078, 0x000000d0 },
+ { 0x007c, 0x00140005 },
+ { 0x0080, 0x00050004 },
+ { 0x0084, 0x70233005 },
+ { 0x0088, 0x000c0000 },
+ { 0x008c, 0x00000200 },
+ { 0x0090, 0x00000040 },
+ { 0x0100, 0x00000001 },
+ { 0x00c0, 0x00020001 },
+ { 0x00c8, 0x20042004 },
+ { 0x0380, 0x00020002 },
+ { 0x0390, 0x0000001f },
+ };
+
+ static const struct reg_config dbsc_config5[] = {
+ { 0x0244, 0x00000011 },
+ { 0x0290, 0x00000003 },
+ { 0x02a0, 0x0300c4e1 },
+ { 0x0290, 0x00000023 },
+ { 0x02a0, 0x00fcdb60 },
+ { 0x0290, 0x00000011 },
+ { 0x02a0, 0x1000040b },
+ { 0x0290, 0x00000012 },
+ { 0x02a0, 0x9d9cbb66 },
+ { 0x0290, 0x00000013 },
+ { 0x02a0, 0x1a868400 },
+ { 0x0290, 0x00000014 },
+ { 0x02a0, 0x300214d8 },
+ { 0x0290, 0x00000015 },
+ { 0x02a0, 0x00000d70 },
+ { 0x0290, 0x00000016 },
+ { 0x02a0, 0x00000006 },
+ { 0x0290, 0x00000017 },
+ { 0x02a0, 0x00000018 },
+ { 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, 0x014000aa },
+ { 0x00e0, 0x00000140 },
+ { 0x00e4, 0x00081860 },
+ { 0x00e8, 0x00010000 },
+ { 0x0290, 0x00000004 },
+ };
+
+ static const struct reg_config dbsc_config8[] = {
+ { 0x0014, 0x00000001 },
+ { 0x0010, 0x00000001 },
+ { 0x0280, 0x00000000 },
+ };
+
+ static const u32 dbsc3_0_base = DBSC3_0_BASE;
+ static const u32 dbsc3_1_base = DBSC3_0_BASE + 0x10000;
+ static const u32 prr_base = 0xff000044;
+ const u16 prr_rev = readl(prr_base) & 0x7fff;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(dbsc_config1); i++) {
+ writel(dbsc_config1[i].val, dbsc3_0_base | dbsc_config1[i].off);
+ writel(dbsc_config1[i].val, dbsc3_1_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);
+ writel(dbsc_config2[i].val, dbsc3_1_base | dbsc_config2[i].off);
+ }
+
+ if (prr_rev == 0x4500) {
+ for (i = 0; i < ARRAY_SIZE(dbsc_config3r0d0); i++) {
+ writel(dbsc_config3r0d0[i].val,
+ dbsc3_0_base | dbsc_config3r0d0[i].off);
+ }
+ for (i = 0; i < ARRAY_SIZE(dbsc_config3r0d1); i++) {
+ writel(dbsc_config3r0d1[i].val,
+ dbsc3_1_base | dbsc_config3r0d1[i].off);
+ }
+ } else if (prr_rev != 0x4510) {
+ for (i = 0; i < ARRAY_SIZE(dbsc_config3r2); i++) {
+ writel(dbsc_config3r2[i].val,
+ dbsc3_0_base | dbsc_config3r2[i].off);
+ writel(dbsc_config3r2[i].val,
+ dbsc3_1_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);
+ writel(dbsc_config4[i].val, dbsc3_1_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);
+ writel(dbsc_config5[i].val, dbsc3_1_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);
+ writel(dbsc_config6[i].val, dbsc3_1_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);
+ writel(dbsc_config7[i].val, dbsc3_1_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);
+ writel(dbsc_config8[i].val, dbsc3_1_base | dbsc_config8[i].off);
+ }
+
+}
+
+static void tpl_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(MSTPSR2, SMSTPCR2, SCIFA0_MSTP204);
+
+ /*
+ * SD0 clock is set to 97.5MHz by default.
+ * Set SD2 to the 97.5MHz as well.
+ */
+ writel(SD_97500KHZ, SD2CKCR);
+
+ tpl_init_sys();
+ tpl_init_pfc();
+ tpl_init_gpio();
+ tpl_init_lbsc();
+ tpl_init_dbsc();
+ tpl_init_qspi();
+}
+#endif
+
+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)
+{
+#ifdef CONFIG_TPL_BUILD
+ 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 TPL will start it from RAM.
+ */
+ if (readl(CONFIG_TPL_TEXT_BASE + 0x20) == jtag_magic) {
+ printf("JTAG boot detected!\n");
+
+ while (readl(CONFIG_TPL_TEXT_BASE + 0x24) != load_magic)
+ ;
+
+ spl_boot_list[0] = BOOT_DEVICE_RAM;
+ spl_boot_list[1] = BOOT_DEVICE_NONE;
+
+ return;
+ }
+#endif
+
+ /* 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)
+{
+}
generated by cgit v1.1 at 2024-07-09 16:18:06 +0000