X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fboard%2Famcc%2Focotea%2Fflash.c;fp=qemu%2Froms%2Fu-boot%2Fboard%2Famcc%2Focotea%2Fflash.c;h=a9bbf045d4be09e3118bd20af2ae1cb3f3cf30e6;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/board/amcc/ocotea/flash.c b/qemu/roms/u-boot/board/amcc/ocotea/flash.c
new file mode 100644
index 000000000..a9bbf045d
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ocotea/flash.c
@@ -0,0 +1,134 @@
+/*
+ * (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>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif				/* DEBUG */
+
+#define     BOOT_SMALL_FLASH        0x40	/* 01000000 */
+#define     FLASH_ONBD_N            2	/* 00000010 */
+#define     FLASH_SRAM_SEL          1	/* 00000001 */
+#define     FLASH_ONBD_N            2	/* 00000010 */
+#define     FLASH_SRAM_SEL          1	/* 00000001 */
+
+#define     BOOT_SMALL_FLASH_VAL    4
+#define     FLASH_ONBD_N_VAL        2
+#define     FLASH_SRAM_SEL_VAL      1
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];	/* info for FLASH chips        */
+
+static unsigned long flash_addr_table[8][CONFIG_SYS_MAX_FLASH_BANKS] = {
+	{0xFF800000, 0xFF880000, 0xFFC00000},	/* 0:000: configuraton 4 */
+	{0xFF900000, 0xFF980000, 0xFFC00000},	/* 1:001: configuraton 3 */
+	{0x00000000, 0x00000000, 0x00000000},	/* 2:010: configuraton 8 */
+	{0x00000000, 0x00000000, 0x00000000},	/* 3:011: configuraton 7 */
+	{0xFFE00000, 0xFFF00000, 0xFF800000},	/* 4:100: configuraton 2 */
+	{0xFFF00000, 0xFFF80000, 0xFF800000},	/* 5:101: configuraton 1 */
+	{0x00000000, 0x00000000, 0x00000000},	/* 6:110: configuraton 6 */
+	{0x00000000, 0x00000000, 0x00000000}	/* 7:111: configuraton 5 */
+};
+
+/*
+ * 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 char *fpga_base = (unsigned char *)CONFIG_SYS_FPGA_BASE;
+	unsigned char switch_status;
+	unsigned short index = 0;
+	int i;
+
+	/* read FPGA base register FPGA_REG0 */
+	switch_status = *fpga_base;
+
+	/* check the bitmap of switch status */
+	if (switch_status & BOOT_SMALL_FLASH) {
+		index += BOOT_SMALL_FLASH_VAL;
+	}
+	if (switch_status & FLASH_ONBD_N) {
+		index += FLASH_ONBD_N_VAL;
+	}
+	if (switch_status & FLASH_SRAM_SEL) {
+		index += FLASH_SRAM_SEL_VAL;
+	}
+
+	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;
+		}
+
+		/* 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]);
+#ifdef 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]);
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+				    CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
+				    &flash_info[i]);
+#endif
+
+		total_b += flash_info[i].size;
+	}
+
+	return total_b;
+}