--- /dev/null
+/*
+ * (C) Copyright 2006
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * (C) Copyright 2004
+ * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <fdt_support.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+#include <malloc.h>
+
+/* some SIMPLE GPIO Pins */
+#define GPIO_USB_8 (31-12)
+#define GPIO_USB_7 (31-13)
+#define GPIO_USB_6 (31-14)
+#define GPIO_USB_0 (31-15)
+#define GPIO_PSC3_7 (31-18)
+#define GPIO_PSC3_6 (31-19)
+#define GPIO_PSC3_1 (31-22)
+#define GPIO_PSC3_0 (31-23)
+
+/* some simple Interrupt GPIO Pins */
+#define GPIO_PSC3_8 2
+#define GPIO_USB1_9 3
+
+#define GPT_OUT_0 0x00000027
+#define GPT_OUT_1 0x00000037
+#define GPT_DISABLE 0x00000000 /* GPT pin disabled */
+
+#define GP_SIMP_ENABLE_O(n, v) {pgpio->simple_dvo |= (v << n); \
+ pgpio->simple_ddr |= (1 << n); \
+ pgpio->simple_gpioe |= (1 << n); \
+ }
+
+#define GP_SIMP_ENABLE_I(n) { pgpio->simple_ddr |= ~(1 << n); \
+ pgpio->simple_gpioe |= (1 << n); \
+ }
+
+#define GP_SIMP_SET_O(n, v) (pgpio->simple_dvo = v ? \
+ (pgpio->simple_dvo | (1 << n)) : \
+ (pgpio->simple_dvo & ~(1 << n)) )
+
+#define GP_SIMP_GET_O(n) ((pgpio->simple_dvo >> n) & 1)
+#define GP_SIMP_GET_I(n) ((pgpio->simple_ival >> n) & 1)
+
+#define GP_SINT_SET_O(n, v) (pgpio->sint_dvo = v ? \
+ (pgpio->sint_dvo | (1 << n)) : \
+ (pgpio->sint_dvo & ~(1 << n)) )
+
+#define GP_SINT_ENABLE_O(n, v) {pgpio->sint_ode &= ~(1 << n); \
+ pgpio->sint_ddr |= (1 << n); \
+ GP_SINT_SET_O(n, v); \
+ pgpio->sint_gpioe |= (1 << n); \
+ }
+
+#define GP_SINT_ENABLE_I(n) { pgpio->sint_ddr |= ~(1 << n); \
+ pgpio->sint_gpioe |= (1 << n); \
+ }
+
+#define GP_SINT_GET_O(n) ((pgpio->sint_ival >> n) & 1)
+#define GP_SINT_GET_I(n) ((pgpio-ntt_ival >> n) & 1)
+
+#define GP_TIMER_ENABLE_O(n, v) ( \
+ ((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->emsr = v ? \
+ GPT_OUT_1 : \
+ GPT_OUT_0 )
+
+#define GP_TIMER_SET_O(n, v) GP_TIMER_ENABLE_O(n, v)
+
+#define GP_TIMER_GET_O(n, v) ( \
+ (((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->emsr & 0x10) >> 4)
+
+#define GP_TIMER_GET_I(n, v) ( \
+ (((volatile struct mpc5xxx_gpt *)(MPC5XXX_GPT + n))->sr & 0x100) >> 8)
+
+#ifndef CONFIG_SYS_RAMBOOT
+static void sdram_start (int hi_addr)
+{
+ long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+ /* unlock mode register */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* precharge all banks */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+#if SDRAM_DDR
+ /* set mode register: extended mode */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
+ __asm__ volatile ("sync");
+
+ /* set mode register: reset DLL */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
+ __asm__ volatile ("sync");
+#endif
+
+ /* precharge all banks */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* auto refresh */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
+ __asm__ volatile ("sync");
+
+ /* set mode register */
+ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
+ __asm__ volatile ("sync");
+
+ /* normal operation */
+ *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
+ __asm__ volatile ("sync");
+}
+#endif
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real use
+ * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE
+ * is something else than 0x00000000.
+ */
+
+phys_size_t initdram (int board_type)
+{
+ ulong dramsize = 0;
+#ifndef CONFIG_SYS_RAMBOOT
+ ulong test1, test2;
+
+ /* setup SDRAM chip selects */
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* disabled */
+ __asm__ volatile ("sync");
+
+ /* setup config registers */
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
+ *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
+ __asm__ volatile ("sync");
+
+#if SDRAM_DDR
+ /* set tap delay */
+ *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
+ __asm__ volatile ("sync");
+#endif
+
+ /* find RAM size using SDRAM CS0 only */
+ sdram_start(0);
+ test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
+ sdram_start(1);
+ test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize = test1;
+ } else {
+ dramsize = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize < (1 << 20)) {
+ dramsize = 0;
+ }
+
+ /* set SDRAM CS0 size according to the amount of RAM found */
+ if (dramsize > 0) {
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 +
+ __builtin_ffs(dramsize >> 20) - 1;
+ } else {
+ *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
+ }
+
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
+#else /* CONFIG_SYS_RAMBOOT */
+
+ /* retrieve size of memory connected to SDRAM CS0 */
+ dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
+ if (dramsize >= 0x13) {
+ dramsize = (1 << (dramsize - 0x13)) << 20;
+ } else {
+ dramsize = 0;
+ }
+
+ /* retrieve size of memory connected to SDRAM CS1 */
+ dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
+ if (dramsize2 >= 0x13) {
+ dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+ } else {
+ dramsize2 = 0;
+ }
+
+#endif /* CONFIG_SYS_RAMBOOT */
+
+/* return dramsize + dramsize2; */
+ return dramsize;
+}
+
+int checkboard (void)
+{
+ puts ("Board: MAN UC101\n");
+ /* clear the Display */
+ *(char *)(CONFIG_SYS_DISP_CWORD) = 0x80;
+ return 0;
+}
+
+static void init_ports (void)
+{
+ volatile struct mpc5xxx_gpio *pgpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+
+ GP_SIMP_ENABLE_I(GPIO_USB_8); /* HEX Bit 3 */
+ GP_SIMP_ENABLE_I(GPIO_USB_7); /* HEX Bit 2 */
+ GP_SIMP_ENABLE_I(GPIO_USB_6); /* HEX Bit 1 */
+ GP_SIMP_ENABLE_I(GPIO_USB_0); /* HEX Bit 0 */
+ GP_SIMP_ENABLE_I(GPIO_PSC3_0); /* Switch Menue A */
+ GP_SIMP_ENABLE_I(GPIO_PSC3_1); /* Switch Menue B */
+ GP_SIMP_ENABLE_I(GPIO_PSC3_6); /* Switch Cold_Warm */
+ GP_SIMP_ENABLE_I(GPIO_PSC3_7); /* Switch Restart */
+ GP_SINT_ENABLE_O(GPIO_PSC3_8, 0); /* LED H2 */
+ GP_SINT_ENABLE_O(GPIO_USB1_9, 0); /* LED H3 */
+ GP_TIMER_ENABLE_O(4, 0); /* LED H4 */
+ GP_TIMER_ENABLE_O(5, 0); /* LED H5 */
+ GP_TIMER_ENABLE_O(3, 0); /* LED HB */
+ GP_TIMER_ENABLE_O(1, 0); /* RES_COLDSTART */
+}
+
+#ifdef CONFIG_PREBOOT
+
+static uchar kbd_magic_prefix[] = "key_magic";
+static uchar kbd_command_prefix[] = "key_cmd";
+
+struct kbd_data_t {
+ char s1;
+};
+
+struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
+{
+ volatile struct mpc5xxx_gpio *pgpio =
+ (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+
+ kbd_data->s1 = GP_SIMP_GET_I(GPIO_USB_8) << 3 | \
+ GP_SIMP_GET_I(GPIO_USB_7) << 2 | \
+ GP_SIMP_GET_I(GPIO_USB_6) << 1 | \
+ GP_SIMP_GET_I(GPIO_USB_0) << 0;
+ return kbd_data;
+}
+
+static int compare_magic (const struct kbd_data_t *kbd_data, char *str)
+{
+ char s1 = str[0];
+
+ if (s1 >= '0' && s1 <= '9')
+ s1 -= '0';
+ else if (s1 >= 'a' && s1 <= 'f')
+ s1 = s1 - 'a' + 10;
+ else if (s1 >= 'A' && s1 <= 'F')
+ s1 = s1 - 'A' + 10;
+ else
+ return -1;
+
+ if (s1 != kbd_data->s1) return -1;
+ return 0;
+}
+
+static char *key_match (const struct kbd_data_t *kbd_data)
+{
+ char magic[sizeof (kbd_magic_prefix) + 1];
+ char *suffix;
+ char *kbd_magic_keys;
+
+ /*
+ * The following string defines the characters that can be appended
+ * to "key_magic" to form the names of environment variables that
+ * hold "magic" key codes, i. e. such key codes that can cause
+ * pre-boot actions. If the string is empty (""), then only
+ * "key_magic" is checked (old behaviour); the string "125" causes
+ * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
+ */
+ if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
+ kbd_magic_keys = "";
+
+ /* loop over all magic keys;
+ * use '\0' suffix in case of empty string
+ */
+ for (suffix = kbd_magic_keys; *suffix ||
+ suffix == kbd_magic_keys; ++suffix) {
+ sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
+
+ if (compare_magic(kbd_data, getenv(magic)) == 0) {
+ char cmd_name[sizeof (kbd_command_prefix) + 1];
+ char *cmd;
+
+ sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
+ cmd = getenv (cmd_name);
+
+ return (cmd);
+ }
+ }
+
+ return (NULL);
+}
+
+#endif /* CONFIG_PREBOOT */
+
+int misc_init_r (void)
+{
+ /* Init the I/O ports */
+ init_ports ();
+
+#ifdef CONFIG_PREBOOT
+ struct kbd_data_t kbd_data;
+ /* Decode keys */
+ char *str = strdup (key_match (get_keys (&kbd_data)));
+ /* Set or delete definition */
+ setenv ("preboot", str);
+ free (str);
+#endif /* CONFIG_PREBOOT */
+ return 0;
+}
+
+int board_early_init_r (void)
+{
+ *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
+ *(vu_long *)MPC5XXX_BOOTCS_START =
+ *(vu_long *)MPC5XXX_CS0_START = START_REG(CONFIG_SYS_FLASH_BASE);
+ *(vu_long *)MPC5XXX_BOOTCS_STOP =
+ *(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE);
+ /* Interbus enable it here ?? */
+ *(vu_long *)MPC5XXX_GPT6_ENABLE = GPT_OUT_1;
+ return 0;
+}
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+extern void pci_mpc5xxx_init(struct pci_controller *);
+
+void pci_init_board(void)
+{
+ pci_mpc5xxx_init(&hose);
+}
+#endif
+
+#if defined(CONFIG_HW_WATCHDOG)
+void hw_watchdog_reset(void)
+{
+ /* Trigger HW Watchdog with TIMER_0 */
+ *(vu_long *)MPC5XXX_GPT0_ENABLE = GPT_OUT_1;
+ *(vu_long *)MPC5XXX_GPT0_ENABLE = GPT_OUT_0;
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
Code Review / kvmfornfv.git / blobdiff