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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/phytec/pcm030/pcm030.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/phytec/pcm030/pcm030.c')
-rw-r--r--qemu/roms/u-boot/board/phytec/pcm030/pcm030.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/phytec/pcm030/pcm030.c b/qemu/roms/u-boot/board/phytec/pcm030/pcm030.c
new file mode 100644
index 000000000..ce515d834
--- /dev/null
+++ b/qemu/roms/u-boot/board/phytec/pcm030/pcm030.c
@@ -0,0 +1,203 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * (C) Copyright 2006
+ * Eric Schumann, Phytec Messtechnik GmbH
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+#include <asm/io.h>
+
+#include "mt46v32m16-75.h"
+
+#ifndef CONFIG_SYS_RAMBOOT
+static void sdram_start(int hi_addr)
+{
+ volatile struct mpc5xxx_cdm *cdm =
+ (struct mpc5xxx_cdm *)MPC5XXX_CDM;
+ volatile struct mpc5xxx_sdram *sdram =
+ (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+
+ long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+ /* unlock mode register */
+ out_be32 (&sdram->ctrl,
+ (SDRAM_CONTROL | 0x80000000 | hi_addr_bit));
+
+ /* precharge all banks */
+ out_be32 (&sdram->ctrl,
+ (SDRAM_CONTROL | 0x80000002 | hi_addr_bit));
+
+#ifdef SDRAM_DDR
+ /* set mode register: extended mode */
+ out_be32 (&sdram->mode, (SDRAM_EMODE));
+
+ /* set mode register: reset DLL */
+ out_be32 (&sdram->mode,
+ (SDRAM_MODE | 0x04000000));
+#endif
+
+ /* precharge all banks */
+ out_be32 (&sdram->ctrl,
+ (SDRAM_CONTROL | 0x80000002 | hi_addr_bit));
+
+ /* auto refresh */
+ out_be32 (&sdram->ctrl,
+ (SDRAM_CONTROL | 0x80000004 | hi_addr_bit));
+
+ /* set mode register */
+ out_be32 (&sdram->mode, (SDRAM_MODE));
+
+ /* normal operation */
+ out_be32 (&sdram->ctrl,
+ (SDRAM_CONTROL | hi_addr_bit));
+
+ /* set CDM clock enable register, set MPC5200B SDRAM bus */
+ /* to reduced driver strength */
+ out_be32 (&cdm->clock_enable, (0x00CFFFFF));
+}
+#endif
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make
+ * real 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)
+{
+ volatile struct mpc5xxx_mmap_ctl *mm =
+ (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+ volatile struct mpc5xxx_cdm *cdm =
+ (struct mpc5xxx_cdm *)MPC5XXX_CDM;
+ volatile struct mpc5xxx_sdram *sdram =
+ (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+ ulong dramsize = 0;
+ ulong dramsize2 = 0;
+#ifndef CONFIG_SYS_RAMBOOT
+ ulong test1, test2;
+
+ /* setup SDRAM chip selects */
+ /* 256MB at 0x0 */
+ out_be32 (&mm->sdram0, 0x0000001b);
+ /* disabled */
+ out_be32 (&mm->sdram1, 0x10000000);
+
+ /* setup config registers */
+ out_be32 (&sdram->config1, SDRAM_CONFIG1);
+ out_be32 (&sdram->config2, SDRAM_CONFIG2);
+
+#if defined(SDRAM_DDR) && defined(SDRAM_TAPDELAY)
+ /* set tap delay */
+ out_be32 (&cdm->porcfg, SDRAM_TAPDELAY);
+#endif
+
+ /* find RAM size using SDRAM CS0 only */
+ sdram_start(0);
+ test1 = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE, 0x10000000);
+ sdram_start(1);
+ test2 = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE, 0x10000000);
+ 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) {
+ out_be32 (&mm->sdram0,
+ (0x13 + __builtin_ffs(dramsize >> 20) - 1));
+ } else {
+ /* disabled */
+ out_be32 (&mm->sdram0, 0);
+ }
+
+#else /* CONFIG_SYS_RAMBOOT */
+
+ /* retrieve size of memory connected to SDRAM CS0 */
+ dramsize = in_be32(&mm->sdram0) & 0xFF;
+ if (dramsize >= 0x13)
+ dramsize = (1 << (dramsize - 0x13)) << 20;
+ else
+ dramsize = 0;
+
+ /* retrieve size of memory connected to SDRAM CS1 */
+ dramsize2 = in_be32(&mm->sdram1) & 0xFF;
+ if (dramsize2 >= 0x13)
+ dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
+ else
+ dramsize2 = 0;
+
+#endif /* CONFIG_SYS_RAMBOOT */
+
+ return dramsize + dramsize2;
+}
+
+int checkboard(void)
+{
+ puts("Board: phyCORE-MPC5200B-tiny\n");
+ 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_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) */
+
+#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET)
+
+#define GPIO_PSC2_4 0x02000000UL
+
+void init_ide_reset(void)
+{
+ volatile struct mpc5xxx_wu_gpio *wu_gpio =
+ (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+ debug("init_ide_reset\n");
+
+ /* Configure PSC2_4 as GPIO output for ATA reset */
+ setbits_be32(&wu_gpio->enable, GPIO_PSC2_4);
+ setbits_be32(&wu_gpio->ddr, GPIO_PSC2_4);
+ /* Deassert reset */
+ setbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+}
+
+void ide_set_reset(int idereset)
+{
+ volatile struct mpc5xxx_wu_gpio *wu_gpio =
+ (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
+ debug("ide_reset(%d)\n", idereset);
+
+ if (idereset) {
+ clrbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+ /* Make a delay. MPC5200 spec says 25 usec min */
+ udelay(500000);
+ } else
+ setbits_be32(&wu_gpio->dvo, GPIO_PSC2_4);
+}
+#endif /* defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) */