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-rw-r--r--qemu/roms/u-boot/board/keymile/km83xx/Makefile8
-rw-r--r--qemu/roms/u-boot/board/keymile/km83xx/README.kmeter191
-rw-r--r--qemu/roms/u-boot/board/keymile/km83xx/km83xx.c410
-rw-r--r--qemu/roms/u-boot/board/keymile/km83xx/km83xx_i2c.c71
4 files changed, 580 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/keymile/km83xx/Makefile b/qemu/roms/u-boot/board/keymile/km83xx/Makefile
new file mode 100644
index 000000000..6c3268853
--- /dev/null
+++ b/qemu/roms/u-boot/board/keymile/km83xx/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += km83xx.o ../common/common.o ../common/ivm.o km83xx_i2c.o
diff --git a/qemu/roms/u-boot/board/keymile/km83xx/README.kmeter1 b/qemu/roms/u-boot/board/keymile/km83xx/README.kmeter1
new file mode 100644
index 000000000..7f4fc999f
--- /dev/null
+++ b/qemu/roms/u-boot/board/keymile/km83xx/README.kmeter1
@@ -0,0 +1,91 @@
+Keymile kmeter1 Board
+-----------------------------------------
+1. Alternative Boot EEPROM
+
+ Upon the kmeter1 startup the I2C_1 controller is used to fetch the boot
+ configuration from a serial EEPROM. During the development and debugging
+ phase it might be helpful to apply an alternative boot configuration in
+ a simple way. Therefore it is an alternative boot eeprom on the PIGGY,
+ which can be activated by setting the "ST" jumper on the PIGGY board.
+
+2. Memory Map
+
+ BaseAddr PortSz Size Device
+ ----------- ------ ----- ------
+ 0x0000_0000 64 bit 256MB DDR
+ 0x8000_0000 8 bit 256KB GPIO/PIGGY on CS1
+ 0xa000_0000 8 bit 256MB PAXE on CS3
+ 0xe000_0000 2MB Int Mem Reg Space
+ 0xf000_0000 16 bit 256MB FLASH on CS0
+
+
+ DDR-SDRAM:
+ The current realization is made with four 16-bits memory devices.
+ Mounting options have been foreseen for device architectures from
+ 4Mx16 to 512Mx16. The kmeter1 is equipped with four 32Mx16 devices
+ thus resulting in a total capacity of 256MBytes.
+
+3. Compilation
+
+ Assuming you're using BASH shell:
+
+ export CROSS_COMPILE=your-cross-compile-prefix
+ cd u-boot
+ make distclean
+ make kmeter1_config
+ make
+
+4. Downloading and Flashing Images
+
+4.0 Download over serial line using Kermit:
+
+ loadb
+ [Drop to kermit:
+ ^\c
+ send <u-boot-bin-image>
+ c
+ ]
+
+
+ Or via tftp:
+
+ tftp 10000 u-boot.bin
+ => run load
+ Using UEC0 device
+ TFTP from server 192.168.1.1; our IP address is 192.168.205.4
+ Filename '/tftpboot/kmeter1/u-boot.bin'.
+ Load address: 0x200000
+ Loading: ##############
+ done
+ Bytes transferred = 204204 (31dac hex)
+ =>
+
+4.1 Reflash U-boot Image using U-boot
+
+ => run update
+ ..... done
+ Un-Protected 5 sectors
+
+ ..... done
+ Erased 5 sectors
+ Copy to Flash... done
+ ..... done
+ Protected 5 sectors
+ Total of 204204 bytes were the same
+ Saving Environment to Flash...
+ . done
+ Un-Protected 1 sectors
+ . done
+ Un-Protected 1 sectors
+ Erasing Flash...
+ . done
+ Erased 1 sectors
+ Writing to Flash... done
+ . done
+ Protected 1 sectors
+ . done
+ Protected 1 sectors
+ =>
+
+5. Notes
+ 1) The console baudrate for kmeter1 is 115200bps.
diff --git a/qemu/roms/u-boot/board/keymile/km83xx/km83xx.c b/qemu/roms/u-boot/board/keymile/km83xx/km83xx.c
new file mode 100644
index 000000000..0543483d5
--- /dev/null
+++ b/qemu/roms/u-boot/board/keymile/km83xx/km83xx.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ * Dave Liu <daveliu@freescale.com>
+ *
+ * Copyright (C) 2007 Logic Product Development, Inc.
+ * Peter Barada <peterb@logicpd.com>
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ * Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * (C) Copyright 2008 - 2010
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <pci.h>
+#include <libfdt.h>
+#include <post.h>
+
+#include "../common/common.h"
+
+const qe_iop_conf_t qe_iop_conf_tab[] = {
+ /* port pin dir open_drain assign */
+#if defined(CONFIG_MPC8360)
+ /* MDIO */
+ {0, 1, 3, 0, 2}, /* MDIO */
+ {0, 2, 1, 0, 1}, /* MDC */
+
+ /* UCC4 - UEC */
+ {1, 14, 1, 0, 1}, /* TxD0 */
+ {1, 15, 1, 0, 1}, /* TxD1 */
+ {1, 20, 2, 0, 1}, /* RxD0 */
+ {1, 21, 2, 0, 1}, /* RxD1 */
+ {1, 18, 1, 0, 1}, /* TX_EN */
+ {1, 26, 2, 0, 1}, /* RX_DV */
+ {1, 27, 2, 0, 1}, /* RX_ER */
+ {1, 24, 2, 0, 1}, /* COL */
+ {1, 25, 2, 0, 1}, /* CRS */
+ {2, 15, 2, 0, 1}, /* TX_CLK - CLK16 */
+ {2, 16, 2, 0, 1}, /* RX_CLK - CLK17 */
+
+ /* DUART - UART2 */
+ {5, 0, 1, 0, 2}, /* UART2_SOUT */
+ {5, 2, 1, 0, 1}, /* UART2_RTS */
+ {5, 3, 2, 0, 2}, /* UART2_SIN */
+ {5, 1, 2, 0, 3}, /* UART2_CTS */
+#elif !defined(CONFIG_MPC8309)
+ /* Local Bus */
+ {0, 16, 1, 0, 3}, /* LA00 */
+ {0, 17, 1, 0, 3}, /* LA01 */
+ {0, 18, 1, 0, 3}, /* LA02 */
+ {0, 19, 1, 0, 3}, /* LA03 */
+ {0, 20, 1, 0, 3}, /* LA04 */
+ {0, 21, 1, 0, 3}, /* LA05 */
+ {0, 22, 1, 0, 3}, /* LA06 */
+ {0, 23, 1, 0, 3}, /* LA07 */
+ {0, 24, 1, 0, 3}, /* LA08 */
+ {0, 25, 1, 0, 3}, /* LA09 */
+ {0, 26, 1, 0, 3}, /* LA10 */
+ {0, 27, 1, 0, 3}, /* LA11 */
+ {0, 28, 1, 0, 3}, /* LA12 */
+ {0, 29, 1, 0, 3}, /* LA13 */
+ {0, 30, 1, 0, 3}, /* LA14 */
+ {0, 31, 1, 0, 3}, /* LA15 */
+
+ /* MDIO */
+ {3, 4, 3, 0, 2}, /* MDIO */
+ {3, 5, 1, 0, 2}, /* MDC */
+
+ /* UCC4 - UEC */
+ {1, 18, 1, 0, 1}, /* TxD0 */
+ {1, 19, 1, 0, 1}, /* TxD1 */
+ {1, 22, 2, 0, 1}, /* RxD0 */
+ {1, 23, 2, 0, 1}, /* RxD1 */
+ {1, 26, 2, 0, 1}, /* RxER */
+ {1, 28, 2, 0, 1}, /* Rx_DV */
+ {1, 30, 1, 0, 1}, /* TxEN */
+ {1, 31, 2, 0, 1}, /* CRS */
+ {3, 10, 2, 0, 3}, /* TxCLK->CLK17 */
+#endif
+
+ /* END of table */
+ {0, 0, 0, 0, QE_IOP_TAB_END},
+};
+
+#if defined(CONFIG_SUVD3)
+const uint upma_table[] = {
+ 0x1ffedc00, 0x0ffcdc80, 0x0ffcdc80, 0x0ffcdc04, /* Words 0 to 3 */
+ 0x0ffcdc00, 0xffffcc00, 0xffffcc01, 0xfffffc01, /* Words 4 to 7 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 8 to 11 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 12 to 15 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 16 to 19 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 20 to 23 */
+ 0x9cfffc00, 0x00fffc80, 0x00fffc80, 0x00fffc00, /* Words 24 to 27 */
+ 0xffffec04, 0xffffec01, 0xfffffc01, 0xfffffc01, /* Words 28 to 31 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 32 to 35 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 36 to 39 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 40 to 43 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 44 to 47 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 48 to 51 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 52 to 55 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01, /* Words 56 to 59 */
+ 0xfffffc01, 0xfffffc01, 0xfffffc01, 0xfffffc01 /* Words 60 to 63 */
+};
+#endif
+
+static int piggy_present(void)
+{
+ struct km_bec_fpga __iomem *base =
+ (struct km_bec_fpga __iomem *)CONFIG_SYS_KMBEC_FPGA_BASE;
+
+ return in_8(&base->bprth) & PIGGY_PRESENT;
+}
+
+#if defined(CONFIG_KMVECT1)
+int ethernet_present(void)
+{
+ /* ethernet port connected to simple switch without piggy */
+ return 1;
+}
+#else
+int ethernet_present(void)
+{
+ return piggy_present();
+}
+#endif
+
+
+int board_early_init_r(void)
+{
+ struct km_bec_fpga *base =
+ (struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
+#if defined(CONFIG_SUVD3)
+ immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ fsl_lbc_t *lbc = &immap->im_lbc;
+ u32 *mxmr = &lbc->mamr;
+#endif
+
+#if defined(CONFIG_MPC8360)
+ unsigned short svid;
+ /*
+ * Because of errata in the UCCs, we have to write to the reserved
+ * registers to slow the clocks down.
+ */
+ svid = SVR_REV(mfspr(SVR));
+ switch (svid) {
+ case 0x0020:
+ /*
+ * MPC8360ECE.pdf QE_ENET10 table 4:
+ * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
+ * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
+ */
+ setbits_be32((void *)(CONFIG_SYS_IMMR + 0x14a8), 0x0c003000);
+ break;
+ case 0x0021:
+ /*
+ * MPC8360ECE.pdf QE_ENET10 table 4:
+ * IMMR + 0x14AC[24:27] = 1010
+ */
+ clrsetbits_be32((void *)(CONFIG_SYS_IMMR + 0x14ac),
+ 0x00000050, 0x000000a0);
+ break;
+ }
+#endif
+
+ /* enable the PHY on the PIGGY */
+ setbits_8(&base->pgy_eth, 0x01);
+ /* enable the Unit LED (green) */
+ setbits_8(&base->oprth, WRL_BOOT);
+ /* enable Application Buffer */
+ setbits_8(&base->oprtl, OPRTL_XBUFENA);
+
+#if defined(CONFIG_SUVD3)
+ /* configure UPMA for APP1 */
+ upmconfig(UPMA, (uint *) upma_table,
+ sizeof(upma_table) / sizeof(uint));
+ out_be32(mxmr, CONFIG_SYS_MAMR);
+#endif
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ return 0;
+}
+
+#if defined(CONFIG_KMVECT1)
+#include <mv88e6352.h>
+/* Marvell MV88E6122 switch configuration */
+static struct mv88e_sw_reg extsw_conf[] = {
+ /* port 1, FRONT_MDI, autoneg */
+ { PORT(1), PORT_PHY, NO_SPEED_FOR },
+ { PORT(1), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ { PHY(1), PHY_1000_CTRL, NO_ADV },
+ { PHY(1), PHY_SPEC_CTRL, AUTO_MDIX_EN },
+ { PHY(1), PHY_CTRL, PHY_100_MBPS | AUTONEG_EN | AUTONEG_RST |
+ FULL_DUPLEX },
+ /* port 2, unused */
+ { PORT(2), PORT_CTRL, PORT_DIS },
+ { PHY(2), PHY_CTRL, PHY_PWR_DOWN },
+ { PHY(2), PHY_SPEC_CTRL, SPEC_PWR_DOWN },
+ /* port 3, BP_MII (CPU), PHY mode, 100BASE */
+ { PORT(3), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /* port 4, ESTAR to slot 11, SerDes, 1000BASE-X */
+ { PORT(4), PORT_STATUS, NO_PHY_DETECT },
+ { PORT(4), PORT_PHY, SPEED_1000_FOR },
+ { PORT(4), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /* port 5, ESTAR to slot 13, SerDes, 1000BASE-X */
+ { PORT(5), PORT_STATUS, NO_PHY_DETECT },
+ { PORT(5), PORT_PHY, SPEED_1000_FOR },
+ { PORT(5), PORT_CTRL, FORWARDING | EGRS_FLD_ALL },
+ /*
+ * Errata Fix: 1.9V Output from Internal 1.8V Regulator,
+ * acc . MV-S300889-00D.pdf , clause 4.5
+ */
+ { PORT(5), 0x1A, 0xADB1 },
+ /* port 6, unused, this port has no phy */
+ { PORT(6), PORT_CTRL, PORT_DIS },
+ /*
+ * Errata Fix: 1.9V Output from Internal 1.8V Regulator,
+ * acc . MV-S300889-00D.pdf , clause 4.5
+ */
+ { PORT(5), 0x1A, 0xADB1 },
+};
+#endif
+
+int last_stage_init(void)
+{
+#if defined(CONFIG_KMVECT1)
+ struct km_bec_fpga __iomem *base =
+ (struct km_bec_fpga __iomem *)CONFIG_SYS_KMBEC_FPGA_BASE;
+ u8 tmp_reg;
+
+ /* Release mv88e6122 from reset */
+ tmp_reg = in_8(&base->res1[0]) | 0x10; /* DIRECT3 register */
+ out_8(&base->res1[0], tmp_reg); /* GP28 as output */
+ tmp_reg = in_8(&base->gprt3) | 0x10; /* GP28 to high */
+ out_8(&base->gprt3, tmp_reg);
+
+ /* configure MV88E6122 switch */
+ char *name = "UEC2";
+
+ if (miiphy_set_current_dev(name))
+ return 0;
+
+ mv88e_sw_program(name, CONFIG_KM_MVEXTSW_ADDR, extsw_conf,
+ ARRAY_SIZE(extsw_conf));
+
+ mv88e_sw_reset(name, CONFIG_KM_MVEXTSW_ADDR);
+
+ if (piggy_present()) {
+ setenv("ethact", "UEC2");
+ setenv("netdev", "eth1");
+ puts("using PIGGY for network boot\n");
+ } else {
+ setenv("netdev", "eth0");
+ puts("using frontport for network boot\n");
+ }
+#endif
+
+#if defined(CONFIG_KMCOGE5NE)
+ struct bfticu_iomap *base =
+ (struct bfticu_iomap *)CONFIG_SYS_BFTIC3_BASE;
+ u8 dip_switch = in_8((u8 *)&(base->mswitch)) & BFTICU_DIPSWITCH_MASK;
+
+ if (dip_switch != 0) {
+ /* start bootloader */
+ puts("DIP: Enabled\n");
+ setenv("actual_bank", "0");
+ }
+#endif
+ set_km_env();
+ return 0;
+}
+
+static int fixed_sdram(void)
+{
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 msize = 0;
+ u32 ddr_size;
+ u32 ddr_size_log2;
+
+ out_be32(&im->sysconf.ddrlaw[0].ar, (LAWAR_EN | 0x1e));
+ out_be32(&im->ddr.csbnds[0].csbnds, (CONFIG_SYS_DDR_CS0_BNDS) | 0x7f);
+ out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CS0_CONFIG);
+ out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
+ out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
+ out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
+ out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
+ out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG);
+ out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_DDR_SDRAM_CFG2);
+ out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
+ out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE2);
+ out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL);
+ out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL);
+ udelay(200);
+ setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN);
+
+ msize = CONFIG_SYS_DDR_SIZE << 20;
+ disable_addr_trans();
+ msize = get_ram_size(CONFIG_SYS_DDR_BASE, msize);
+ enable_addr_trans();
+ msize /= (1024 * 1024);
+ if (CONFIG_SYS_DDR_SIZE != msize) {
+ for (ddr_size = msize << 20, ddr_size_log2 = 0;
+ (ddr_size > 1);
+ ddr_size = ddr_size >> 1, ddr_size_log2++)
+ if (ddr_size & 1)
+ return -1;
+ out_be32(&im->sysconf.ddrlaw[0].ar,
+ (LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE)));
+ out_be32(&im->ddr.csbnds[0].csbnds,
+ (((msize / 16) - 1) & 0xff));
+ }
+
+ return msize;
+}
+
+phys_size_t initdram(int board_type)
+{
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 msize = 0;
+
+ if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im)
+ return -1;
+
+ out_be32(&im->sysconf.ddrlaw[0].bar,
+ CONFIG_SYS_DDR_BASE & LAWBAR_BAR);
+ msize = fixed_sdram();
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+ /*
+ * Initialize DDR ECC byte
+ */
+ ddr_enable_ecc(msize * 1024 * 1024);
+#endif
+
+ /* return total bus SDRAM size(bytes) -- DDR */
+ return msize * 1024 * 1024;
+}
+
+int checkboard(void)
+{
+ puts("Board: Keymile " CONFIG_KM_BOARD_NAME);
+
+ if (piggy_present())
+ puts(" with PIGGY.");
+ puts("\n");
+ return 0;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+#endif
+
+#if defined(CONFIG_HUSH_INIT_VAR)
+int hush_init_var(void)
+{
+ ivm_read_eeprom();
+ return 0;
+}
+#endif
+
+#if defined(CONFIG_POST)
+int post_hotkeys_pressed(void)
+{
+ int testpin = 0;
+ struct km_bec_fpga *base =
+ (struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
+ int testpin_reg = in_8(&base->CONFIG_TESTPIN_REG);
+ testpin = (testpin_reg & CONFIG_TESTPIN_MASK) != 0;
+ debug("post_hotkeys_pressed: %d\n", !testpin);
+ return testpin;
+}
+
+ulong post_word_load(void)
+{
+ void* addr = (ulong *) (CPM_POST_WORD_ADDR);
+ debug("post_word_load 0x%08lX: 0x%08X\n", (ulong)addr, in_le32(addr));
+ return in_le32(addr);
+
+}
+void post_word_store(ulong value)
+{
+ void* addr = (ulong *) (CPM_POST_WORD_ADDR);
+ debug("post_word_store 0x%08lX: 0x%08lX\n", (ulong)addr, value);
+ out_le32(addr, value);
+}
+
+int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
+{
+ *vstart = CONFIG_SYS_MEMTEST_START;
+ *size = CONFIG_SYS_MEMTEST_END - CONFIG_SYS_MEMTEST_START;
+ debug("arch_memory_test_prepare 0x%08X 0x%08X\n", *vstart, *size);
+
+ return 0;
+}
+#endif
diff --git a/qemu/roms/u-boot/board/keymile/km83xx/km83xx_i2c.c b/qemu/roms/u-boot/board/keymile/km83xx/km83xx_i2c.c
new file mode 100644
index 000000000..c96193753
--- /dev/null
+++ b/qemu/roms/u-boot/board/keymile/km83xx/km83xx_i2c.c
@@ -0,0 +1,71 @@
+/*
+ * (C) Copyright 2011
+ * Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/io.h>
+#include <linux/ctype.h>
+#include "../common/common.h"
+
+static void i2c_write_start_seq(void)
+{
+ struct fsl_i2c *dev;
+ dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
+ udelay(DELAY_ABORT_SEQ);
+ out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
+ udelay(DELAY_ABORT_SEQ);
+ out_8(&dev->cr, (I2C_CR_MEN));
+}
+
+int i2c_make_abort(void)
+{
+ struct fsl_i2c *dev;
+ dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
+ uchar last;
+ int nbr_read = 0;
+ int i = 0;
+ int ret = 0;
+
+ /* wait after each operation to finsh with a delay */
+ out_8(&dev->cr, (I2C_CR_MSTA));
+ udelay(DELAY_ABORT_SEQ);
+ out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
+ udelay(DELAY_ABORT_SEQ);
+ in_8(&dev->dr);
+ udelay(DELAY_ABORT_SEQ);
+ last = in_8(&dev->dr);
+ nbr_read++;
+
+ /*
+ * do read until the last bit is 1, but stop if the full eeprom is
+ * read.
+ */
+ while (((last & 0x01) != 0x01) &&
+ (nbr_read < CONFIG_SYS_IVM_EEPROM_MAX_LEN)) {
+ udelay(DELAY_ABORT_SEQ);
+ last = in_8(&dev->dr);
+ nbr_read++;
+ }
+ if ((last & 0x01) != 0x01)
+ ret = -2;
+ if ((last != 0xff) || (nbr_read > 1))
+ printf("[INFO] i2c abort after %d bytes (0x%02x)\n",
+ nbr_read, last);
+ udelay(DELAY_ABORT_SEQ);
+ out_8(&dev->cr, (I2C_CR_MEN));
+ udelay(DELAY_ABORT_SEQ);
+ /* clear status reg */
+ out_8(&dev->sr, 0);
+
+ for (i = 0; i < 5; i++)
+ i2c_write_start_seq();
+ if (ret != 0)
+ printf("[ERROR] i2c abort failed after %d bytes (0x%02x)\n",
+ nbr_read, last);
+
+ return ret;
+}