--- /dev/null
+/*
+ * (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 2004-2005
+ * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
+ *
+ * (C) Copyright 2006
+ * Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.de
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+#include <netdev.h>
+
+#ifdef CONFIG_VIDEO_SM501
+#include <sm501.h>
+#endif
+
+#if defined(CONFIG_MPC5200_DDR)
+#include "mt46v16m16-75.h"
+#else
+#include "mt48lc16m16a2-75.h"
+#endif
+
+#ifdef CONFIG_RTC_MPC5200
+#include <rtc.h>
+#endif
+
+#ifdef CONFIG_PS2MULT
+void ps2mult_early_init(void);
+#endif
+
+#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;
+ ulong dramsize2 = 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 */
+ }
+
+ /* let SDRAM CS1 start right after CS0 */
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001c; /* 512MB */
+
+ /* find RAM size using SDRAM CS1 only */
+ sdram_start(0);
+ test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x20000000);
+ sdram_start(1);
+ test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x20000000);
+ if (test1 > test2) {
+ sdram_start(0);
+ dramsize2 = test1;
+ } else {
+ dramsize2 = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize2 < (1 << 20)) {
+ dramsize2 = 0;
+ }
+
+ /* set SDRAM CS1 size according to the amount of RAM found */
+ if (dramsize2 > 0) {
+ *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
+ | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
+ } else {
+ *(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;
+}
+
+int checkboard (void)
+{
+#if defined (CONFIG_TQM5200)
+ puts ("Board: TQM5200 (TQ-Components GmbH)\n");
+#endif
+
+#if defined (CONFIG_BC3450)
+ puts ("Dev: GERSYS BC3450\n");
+#endif
+
+ return 0;
+}
+
+void flash_preinit(void)
+{
+ /*
+ * Now, when we are in RAM, enable flash write
+ * access for detection process.
+ * Note that CS_BOOT cannot be cleared when
+ * executing in flash.
+ */
+ *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
+}
+
+
+#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_CMD_IDE) && defined(CONFIG_IDE_RESET)
+
+void init_ide_reset (void)
+{
+ debug ("init_ide_reset\n");
+
+ /* Configure PSC1_4 as GPIO output for ATA reset */
+ *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4;
+ *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4;
+}
+
+void ide_set_reset (int idereset)
+{
+ debug ("ide_reset(%d)\n", idereset);
+
+ if (idereset) {
+ *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
+ } else {
+ *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
+ }
+}
+#endif
+
+#ifdef CONFIG_POST
+/*
+ * Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
+ * is left open, no keypress is detected.
+ */
+int post_hotkeys_pressed(void)
+{
+ struct mpc5xxx_gpio *gpio;
+
+ gpio = (struct mpc5xxx_gpio*) MPC5XXX_GPIO;
+
+ /*
+ * Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
+ * CODEC or UART mode. Consumer IrDA should still be possible.
+ */
+ gpio->port_config &= ~(0x07000000);
+ gpio->port_config |= 0x03000000;
+
+ /* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
+ gpio->simple_gpioe |= 0x20000000;
+
+ /* Configure GPIO_IRDA_1 as input */
+ gpio->simple_ddr &= ~(0x20000000);
+
+ return ((gpio->simple_ival & 0x20000000) ? 0 : 1);
+}
+#endif
+
+#ifdef CONFIG_BOARD_EARLY_INIT_R
+int board_early_init_r (void)
+{
+#ifdef CONFIG_RTC_MPC5200
+ struct rtc_time t;
+
+ /* set to Wed Dec 31 19:00:00 1969 */
+ t.tm_sec = t.tm_min = 0;
+ t.tm_hour = 19;
+ t.tm_mday = 31;
+ t.tm_mon = 12;
+ t.tm_year = 1969;
+ t.tm_wday = 3;
+
+ rtc_set(&t);
+#endif /* CONFIG_RTC_MPC5200 */
+
+#ifdef CONFIG_PS2MULT
+ ps2mult_early_init();
+#endif /* CONFIG_PS2MULT */
+ return (0);
+}
+#endif /* CONFIG_BOARD_EARLY_INIT_R */
+
+
+int last_stage_init (void)
+{
+ /*
+ * auto scan for really existing devices and re-set chip select
+ * configuration.
+ */
+ u16 save, tmp;
+ int restore;
+
+ /*
+ * Check for SRAM and SRAM size
+ */
+
+ /* save original SRAM content */
+ save = *(volatile u16 *)CONFIG_SYS_CS2_START;
+ restore = 1;
+
+ /* write test pattern to SRAM */
+ *(volatile u16 *)CONFIG_SYS_CS2_START = 0xA5A5;
+ __asm__ volatile ("sync");
+ /*
+ * Put a different pattern on the data lines: otherwise they may float
+ * long enough to read back what we wrote.
+ */
+ tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
+ if (tmp == 0xA5A5)
+ puts ("!! possible error in SRAM detection\n");
+
+ if (*(volatile u16 *)CONFIG_SYS_CS2_START != 0xA5A5) {
+ /* no SRAM at all, disable cs */
+ *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 18);
+ *(vu_long *)MPC5XXX_CS2_START = 0x0000FFFF;
+ *(vu_long *)MPC5XXX_CS2_STOP = 0x0000FFFF;
+ restore = 0;
+ __asm__ volatile ("sync");
+ } else if (*(volatile u16 *)(CONFIG_SYS_CS2_START + (1<<19)) == 0xA5A5) {
+ /* make sure that we access a mirrored address */
+ *(volatile u16 *)CONFIG_SYS_CS2_START = 0x1111;
+ __asm__ volatile ("sync");
+ if (*(volatile u16 *)(CONFIG_SYS_CS2_START + (1<<19)) == 0x1111) {
+ /* SRAM size = 512 kByte */
+ *(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CONFIG_SYS_CS2_START,
+ 0x80000);
+ __asm__ volatile ("sync");
+ puts ("SRAM: 512 kB\n");
+ }
+ else
+ puts ("!! possible error in SRAM detection\n");
+ } else {
+ puts ("SRAM: 1 MB\n");
+ }
+ /* restore origianl SRAM content */
+ if (restore) {
+ *(volatile u16 *)CONFIG_SYS_CS2_START = save;
+ __asm__ volatile ("sync");
+ }
+
+ /*
+ * Check for Grafic Controller
+ */
+
+ /* save origianl FB content */
+ save = *(volatile u16 *)CONFIG_SYS_CS1_START;
+ restore = 1;
+
+ /* write test pattern to FB memory */
+ *(volatile u16 *)CONFIG_SYS_CS1_START = 0xA5A5;
+ __asm__ volatile ("sync");
+ /*
+ * Put a different pattern on the data lines: otherwise they may float
+ * long enough to read back what we wrote.
+ */
+ tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
+ if (tmp == 0xA5A5)
+ puts ("!! possible error in grafic controller detection\n");
+
+ if (*(volatile u16 *)CONFIG_SYS_CS1_START != 0xA5A5) {
+ /* no grafic controller at all, disable cs */
+ *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 17);
+ *(vu_long *)MPC5XXX_CS1_START = 0x0000FFFF;
+ *(vu_long *)MPC5XXX_CS1_STOP = 0x0000FFFF;
+ restore = 0;
+ __asm__ volatile ("sync");
+ } else {
+ puts ("VGA: SMI501 (Voyager) with 8 MB\n");
+ }
+ /* restore origianl FB content */
+ if (restore) {
+ *(volatile u16 *)CONFIG_SYS_CS1_START = save;
+ __asm__ volatile ("sync");
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_SM501
+
+#define DISPLAY_WIDTH 640
+#define DISPLAY_HEIGHT 480
+
+#ifdef CONFIG_VIDEO_SM501_8BPP
+#error CONFIG_VIDEO_SM501_8BPP not supported.
+#endif /* CONFIG_VIDEO_SM501_8BPP */
+
+#ifdef CONFIG_VIDEO_SM501_16BPP
+#error CONFIG_VIDEO_SM501_16BPP not supported.
+#endif /* CONFIG_VIDEO_SM501_16BPP */
+
+#ifdef CONFIG_VIDEO_SM501_32BPP
+static const SMI_REGS init_regs [] =
+{
+#if defined (CONFIG_BC3450_FP) && !defined (CONFIG_BC3450_CRT)
+ /* FP only */
+ {0x00004, 0x0},
+ {0x00048, 0x00021807},
+ {0x0004C, 0x091a0a01},
+ {0x00054, 0x1},
+ {0x00040, 0x00021807},
+ {0x00044, 0x091a0a01},
+ {0x00054, 0x0},
+ {0x80000, 0x01013106},
+ {0x80004, 0xc428bb17},
+ {0x80000, 0x03013106},
+ {0x8000C, 0x00000000},
+ {0x80010, 0x0a000a00},
+ {0x80014, 0x02800000},
+ {0x80018, 0x01e00000},
+ {0x8001C, 0x00000000},
+ {0x80020, 0x01e00280},
+ {0x80024, 0x02fa027f},
+ {0x80028, 0x004a028b},
+ {0x8002C, 0x020c01df},
+ {0x80030, 0x000201e9},
+ {0x80200, 0x00010200},
+ {0x80000, 0x0f013106},
+#elif defined (CONFIG_BC3450_CRT) && !defined (CONFIG_BC3450_FP)
+ /* CRT only */
+ {0x00004, 0x0},
+ {0x00048, 0x00021807},
+ {0x0004C, 0x10090a01},
+ {0x00054, 0x1},
+ {0x00040, 0x00021807},
+ {0x00044, 0x10090a01},
+ {0x00054, 0x0},
+ {0x80200, 0x00010000},
+ {0x80204, 0x0},
+ {0x80208, 0x0A000A00},
+ {0x8020C, 0x02fa027f},
+ {0x80210, 0x004a028b},
+ {0x80214, 0x020c01df},
+ {0x80218, 0x000201e9},
+ {0x80200, 0x00013306},
+#else /* panel + CRT */
+ {0x00004, 0x0},
+ {0x00048, 0x00021807},
+ {0x0004C, 0x091a0a01},
+ {0x00054, 0x1},
+ {0x00040, 0x00021807},
+ {0x00044, 0x091a0a01},
+ {0x00054, 0x0},
+ {0x80000, 0x0f013106},
+ {0x80004, 0xc428bb17},
+ {0x8000C, 0x00000000},
+ {0x80010, 0x0a000a00},
+ {0x80014, 0x02800000},
+ {0x80018, 0x01e00000},
+ {0x8001C, 0x00000000},
+ {0x80020, 0x01e00280},
+ {0x80024, 0x02fa027f},
+ {0x80028, 0x004a028b},
+ {0x8002C, 0x020c01df},
+ {0x80030, 0x000201e9},
+ {0x80200, 0x00010000},
+#endif
+ {0, 0}
+};
+#endif /* CONFIG_VIDEO_SM501_32BPP */
+
+#ifdef CONFIG_CONSOLE_EXTRA_INFO
+/*
+ * Return text to be printed besides the logo.
+ */
+void video_get_info_str (int line_number, char *info)
+{
+ if (line_number == 1) {
+#if defined (CONFIG_TQM5200)
+ strcpy (info, " Board: TQM5200 (TQ-Components GmbH)");
+#else
+#error No supported board selected
+#endif /* CONFIG_TQM5200 */
+
+#if defined (CONFIG_BC3450)
+ } else if (line_number == 2) {
+ strcpy (info, " Dev: GERSYS BC3450");
+#endif /* CONFIG_BC3450 */
+ }
+ else {
+ info [0] = '\0';
+ }
+}
+#endif
+
+/*
+ * Returns SM501 register base address. First thing called in the
+ * driver. Checks if SM501 is physically present.
+ */
+unsigned int board_video_init (void)
+{
+ u16 save, tmp;
+ int restore, ret;
+
+ /*
+ * Check for Grafic Controller
+ */
+
+ /* save origianl FB content */
+ save = *(volatile u16 *)CONFIG_SYS_CS1_START;
+ restore = 1;
+
+ /* write test pattern to FB memory */
+ *(volatile u16 *)CONFIG_SYS_CS1_START = 0xA5A5;
+ __asm__ volatile ("sync");
+ /*
+ * Put a different pattern on the data lines: otherwise they may float
+ * long enough to read back what we wrote.
+ */
+ tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
+ if (tmp == 0xA5A5)
+ puts ("!! possible error in grafic controller detection\n");
+
+ if (*(volatile u16 *)CONFIG_SYS_CS1_START != 0xA5A5) {
+ /* no grafic controller found */
+ restore = 0;
+ ret = 0;
+ } else {
+ ret = SM501_MMIO_BASE;
+ }
+
+ if (restore) {
+ *(volatile u16 *)CONFIG_SYS_CS1_START = save;
+ __asm__ volatile ("sync");
+ }
+ return ret;
+}
+
+/*
+ * Returns SM501 framebuffer address
+ */
+unsigned int board_video_get_fb (void)
+{
+ return SM501_FB_BASE;
+}
+
+/*
+ * Called after initializing the SM501 and before clearing the screen.
+ */
+void board_validate_screen (unsigned int base)
+{
+}
+
+/*
+ * Return a pointer to the initialization sequence.
+ */
+const SMI_REGS *board_get_regs (void)
+{
+ return init_regs;
+}
+
+int board_get_width (void)
+{
+ return DISPLAY_WIDTH;
+}
+
+int board_get_height (void)
+{
+ return DISPLAY_HEIGHT;
+}
+
+#endif /* CONFIG_VIDEO_SM501 */
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis); /* Built in FEC comes first */
+ return pci_eth_init(bis);
+}
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