Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / amcc / bamboo / flash.c

diff --git a/qemu/roms/u-boot/board/amcc/bamboo/flash.c b/qemu/roms/u-boot/board/amcc/bamboo/flash.c
new file mode 100644 (file)
index 0000000..6dbe09f
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/bamboo/flash.c
@@ -0,0 +1,155 @@
+/*
+ * (C) Copyright 2004-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
+ * Add support for Am29F016D and dynamic switch setting.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <asm/processor.h>
+#include <asm/ppc440.h>
+#include "bamboo.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif                         /* DEBUG */
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];   /* info for FLASH chips        */
+
+/*
+ * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0
+ */
+static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
+       {0x87800001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
+       {0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66      */
+       {0x87800001, 0x00000000, 0x00000000}, /* 0:boot from nand flash  */
+       {0x87F00000, 0x87F80000, 0xFFC00001}, /* 3:boot from big flash 33*/
+       {0x87F00000, 0x87F80000, 0xFFC00001}, /* 4:boot from big flash 66*/
+       {0x00000000, 0x00000000, 0x00000000}, /* 5:boot from             */
+       {0x00000000, 0x00000000, 0x00000000}, /* 6:boot from pci 66      */
+       {0x00000000, 0x00000000, 0x00000000}, /* 7:boot from             */
+       {0x87C00001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
+};
+
+/*
+ * include common flash code (for amcc boards)
+ */
+#include "../common/flash.c"
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+static int write_word(flash_info_t * info, ulong dest, ulong data);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init(void)
+{
+       unsigned long total_b = 0;
+       unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
+       unsigned short index = 0;
+       int i;
+       unsigned long val;
+       unsigned long ebc_boot_size;
+       unsigned long boot_selection;
+
+       mfsdr(SDR0_PINSTP, val);
+       index = (val & SDR0_PSTRP0_BOOTSTRAP_MASK) >> 29;
+
+       if ((index == 5) || (index == 7)) {
+               /*
+                * Boot Settings in IIC EEprom address 0xA8 or 0xA4
+                * Read Serial Device Strap Register1 in PPC440EP
+                */
+               mfsdr(SDR0_SDSTP1, val);
+               boot_selection  = val & SDR0_SDSTP1_BOOT_SEL_MASK;
+               ebc_boot_size   = val & SDR0_SDSTP1_EBC_ROM_BS_MASK;
+
+               switch(boot_selection) {
+               case SDR0_SDSTP1_BOOT_SEL_EBC:
+                       switch(ebc_boot_size) {
+                       case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
+                               index = 3;
+                               break;
+                       case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
+                               index = 0;
+                               break;
+                       }
+                       break;
+
+               case SDR0_SDSTP1_BOOT_SEL_PCI:
+                       index = 1;
+                       break;
+
+               case SDR0_SDSTP1_BOOT_SEL_NDFC:
+                       index = 2;
+                       break;
+               }
+       } else if (index == 0) {
+               if (in8(FPGA_SETTING_REG) & FPGA_SET_REG_OP_CODE_FLASH_ABOVE) {
+                       index = 8; /* sram below op code flash -> new index 8 */
+               }
+       }
+
+       DEBUGF("\n");
+       DEBUGF("FLASH: Index: %d\n", index);
+
+       /* Init: no FLASHes known */
+       for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+               flash_info[i].flash_id = FLASH_UNKNOWN;
+               flash_info[i].sector_count = -1;
+               flash_info[i].size = 0;
+
+               /* check whether the address is 0 */
+               if (flash_addr_table[index][i] == 0)
+                       continue;
+
+               DEBUGF("Detection bank %d...\n", i);
+               /* call flash_get_size() to initialize sector address */
+               size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
+                                  &flash_info[i]);
+               flash_info[i].size = size_b[i];
+               if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+                       printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
+                              i, size_b[i], size_b[i] << 20);
+                       flash_info[i].sector_count = -1;
+                       flash_info[i].size = 0;
+               }
+
+               /* Monitor protection ON by default */
+               (void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
+                                   CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
+                                   &flash_info[i]);
+#if defined(CONFIG_ENV_IS_IN_FLASH)
+               (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
+                                   CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
+                                   &flash_info[i]);
+#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR_REDUND)
+               (void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+                                   CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
+                                   &flash_info[i]);
+#endif
+#endif
+
+               total_b += flash_info[i].size;
+       }
+
+       return total_b;
+}