upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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458 lines
9.8 KiB
458 lines
9.8 KiB
/*
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* (C) Copyright 2009
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* Marvell Semiconductor <www.marvell.com>
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* Prafulla Wadaskar <prafulla@marvell.com>
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*
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* (C) Copyright 2009
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* (C) Copyright 2010
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <common.h>
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#include <i2c.h>
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#include <nand.h>
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#include <netdev.h>
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#include <miiphy.h>
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#include <asm/io.h>
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#include <asm/arch/kirkwood.h>
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#include <asm/arch/mpp.h>
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#include "../common/common.h"
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* BOCO FPGA definitions
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*/
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#define BOCO 0x10
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#define REG_CTRL_H 0x02
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#define MASK_WRL_UNITRUN 0x01
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#define MASK_RBX_PGY_PRESENT 0x40
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#define REG_IRQ_CIRQ2 0x2d
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#define MASK_RBI_DEFECT_16 0x01
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/* Multi-Purpose Pins Functionality configuration */
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u32 kwmpp_config[] = {
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MPP0_NF_IO2,
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MPP1_NF_IO3,
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MPP2_NF_IO4,
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MPP3_NF_IO5,
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MPP4_NF_IO6,
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MPP5_NF_IO7,
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MPP6_SYSRST_OUTn,
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MPP7_PEX_RST_OUTn,
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#if defined(CONFIG_SOFT_I2C)
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MPP8_GPIO, /* SDA */
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MPP9_GPIO, /* SCL */
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#endif
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#if defined(CONFIG_HARD_I2C)
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MPP8_TW_SDA,
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MPP9_TW_SCK,
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#endif
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MPP10_UART0_TXD,
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MPP11_UART0_RXD,
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MPP12_GPO, /* Reserved */
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MPP13_UART1_TXD,
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MPP14_UART1_RXD,
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MPP15_GPIO, /* Not used */
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MPP16_GPIO, /* Not used */
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MPP17_GPIO, /* Reserved */
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MPP18_NF_IO0,
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MPP19_NF_IO1,
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MPP20_GPIO,
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MPP21_GPIO,
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MPP22_GPIO,
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MPP23_GPIO,
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MPP24_GPIO,
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MPP25_GPIO,
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MPP26_GPIO,
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MPP27_GPIO,
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MPP28_GPIO,
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MPP29_GPIO,
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MPP30_GPIO,
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MPP31_GPIO,
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MPP32_GPIO,
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MPP33_GPIO,
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MPP34_GPIO, /* CDL1 (input) */
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MPP35_GPIO, /* CDL2 (input) */
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MPP36_GPIO, /* MAIN_IRQ (input) */
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MPP37_GPIO, /* BOARD_LED */
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MPP38_GPIO, /* Piggy3 LED[1] */
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MPP39_GPIO, /* Piggy3 LED[2] */
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MPP40_GPIO, /* Piggy3 LED[3] */
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MPP41_GPIO, /* Piggy3 LED[4] */
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MPP42_GPIO, /* Piggy3 LED[5] */
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MPP43_GPIO, /* Piggy3 LED[6] */
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MPP44_GPIO, /* Piggy3 LED[7], BIST_EN_L */
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MPP45_GPIO, /* Piggy3 LED[8] */
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MPP46_GPIO, /* Reserved */
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MPP47_GPIO, /* Reserved */
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MPP48_GPIO, /* Reserved */
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MPP49_GPIO, /* SW_INTOUTn */
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0
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};
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#if defined(CONFIG_MGCOGE3UN)
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/*
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* Wait for startup OK from mgcoge3ne
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*/
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int startup_allowed(void)
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{
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unsigned char buf;
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/*
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* Read CIRQ16 bit (bit 0)
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*/
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if (i2c_read(BOCO, REG_IRQ_CIRQ2, 1, &buf, 1) != 0)
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printf("%s: Error reading Boco\n", __func__);
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else
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if ((buf & MASK_RBI_DEFECT_16) == MASK_RBI_DEFECT_16)
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return 1;
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return 0;
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}
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#endif
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#if (defined(CONFIG_MGCOGE3UN)|defined(CONFIG_PORTL2))
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/*
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* These two boards have always ethernet present. Its connected to the mv
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* switch.
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*/
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int ethernet_present(void)
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{
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return 1;
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}
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#else
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int ethernet_present(void)
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{
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uchar buf;
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int ret = 0;
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if (i2c_read(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) {
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printf("%s: Error reading Boco\n", __func__);
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return -1;
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}
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if ((buf & MASK_RBX_PGY_PRESENT) == MASK_RBX_PGY_PRESENT)
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ret = 1;
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return ret;
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}
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#endif
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int initialize_unit_leds(void)
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{
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/*
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* Init the unit LEDs per default they all are
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* ok apart from bootstat
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*/
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uchar buf;
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if (i2c_read(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) {
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printf("%s: Error reading Boco\n", __func__);
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return -1;
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}
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buf |= MASK_WRL_UNITRUN;
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if (i2c_write(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) {
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printf("%s: Error writing Boco\n", __func__);
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return -1;
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}
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return 0;
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}
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#if defined(CONFIG_BOOTCOUNT_LIMIT)
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void set_bootcount_addr(void)
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{
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uchar buf[32];
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unsigned int bootcountaddr;
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bootcountaddr = gd->ram_size - BOOTCOUNT_ADDR;
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sprintf((char *)buf, "0x%x", bootcountaddr);
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setenv("bootcountaddr", (char *)buf);
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}
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#endif
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int misc_init_r(void)
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{
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char *str;
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int mach_type;
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str = getenv("mach_type");
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if (str != NULL) {
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mach_type = simple_strtoul(str, NULL, 10);
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printf("Overwriting MACH_TYPE with %d!!!\n", mach_type);
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gd->bd->bi_arch_number = mach_type;
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}
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#if defined(CONFIG_MGCOGE3UN)
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char *wait_for_ne;
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wait_for_ne = getenv("waitforne");
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if (wait_for_ne != NULL) {
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if (strcmp(wait_for_ne, "true") == 0) {
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int cnt = 0;
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puts("NE go: ");
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while (startup_allowed() == 0) {
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udelay(200000);
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cnt++;
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if (cnt == 5)
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puts("wait\b\b\b\b");
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if (cnt == 10) {
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cnt = 0;
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puts(" \b\b\b\b");
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}
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}
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puts("OK\n");
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}
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}
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#endif
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initialize_unit_leds();
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set_km_env();
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#if defined(CONFIG_BOOTCOUNT_LIMIT)
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set_bootcount_addr();
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#endif
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return 0;
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}
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int board_early_init_f(void)
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{
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u32 tmp;
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kirkwood_mpp_conf(kwmpp_config);
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/*
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* The FLASH_GPIO_PIN switches between using a
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* NAND or a SPI FLASH. Set this pin on start
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* to NAND mode.
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*/
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tmp = readl(KW_GPIO0_BASE);
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writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE);
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tmp = readl(KW_GPIO0_BASE + 4);
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writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE + 4);
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#if defined(CONFIG_SOFT_I2C)
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/* init the GPIO for I2C Bitbang driver */
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kw_gpio_set_valid(KM_KIRKWOOD_SDA_PIN, 1);
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kw_gpio_set_valid(KM_KIRKWOOD_SCL_PIN, 1);
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kw_gpio_direction_output(KM_KIRKWOOD_SDA_PIN, 0);
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kw_gpio_direction_output(KM_KIRKWOOD_SCL_PIN, 0);
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#endif
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#if defined(CONFIG_SYS_EEPROM_WREN)
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kw_gpio_set_valid(KM_KIRKWOOD_ENV_WP, 38);
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kw_gpio_direction_output(KM_KIRKWOOD_ENV_WP, 1);
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#endif
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return 0;
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}
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int board_init(void)
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{
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/*
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* arch number of board
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*/
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gd->bd->bi_arch_number = MACH_TYPE_KM_KIRKWOOD;
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/* address of boot parameters */
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gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
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return 0;
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}
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#if defined(CONFIG_CMD_SF)
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int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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u32 tmp;
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if (argc < 2)
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return cmd_usage(cmdtp);
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if ((strcmp(argv[1], "off") == 0)) {
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printf("SPI FLASH disabled, NAND enabled\n");
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/* Multi-Purpose Pins Functionality configuration */
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kwmpp_config[0] = MPP0_NF_IO2;
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kwmpp_config[1] = MPP1_NF_IO3;
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kwmpp_config[2] = MPP2_NF_IO4;
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kwmpp_config[3] = MPP3_NF_IO5;
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kirkwood_mpp_conf(kwmpp_config);
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tmp = readl(KW_GPIO0_BASE);
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writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE);
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} else if ((strcmp(argv[1], "on") == 0)) {
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printf("SPI FLASH enabled, NAND disabled\n");
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/* Multi-Purpose Pins Functionality configuration */
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kwmpp_config[0] = MPP0_SPI_SCn;
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kwmpp_config[1] = MPP1_SPI_MOSI;
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kwmpp_config[2] = MPP2_SPI_SCK;
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kwmpp_config[3] = MPP3_SPI_MISO;
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kirkwood_mpp_conf(kwmpp_config);
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tmp = readl(KW_GPIO0_BASE);
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writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE);
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} else {
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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U_BOOT_CMD(
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spitoggle, 2, 0, do_spi_toggle,
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"En-/disable SPI FLASH access",
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"<on|off> - Enable (on) or disable (off) SPI FLASH access\n"
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);
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#endif
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int dram_init(void)
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{
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/* dram_init must store complete ramsize in gd->ram_size */
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/* Fix this */
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gd->ram_size = get_ram_size((void *)kw_sdram_bar(0),
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kw_sdram_bs(0));
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return 0;
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}
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void dram_init_banksize(void)
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{
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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gd->bd->bi_dram[i].start = kw_sdram_bar(i);
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gd->bd->bi_dram[i].size = get_ram_size((long *)kw_sdram_bar(i),
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kw_sdram_bs(i));
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}
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}
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#if (defined(CONFIG_MGCOGE3UN)|defined(CONFIG_PORTL2))
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#define PHY_LED_SEL 0x18
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#define PHY_LED0_LINK (0x5)
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#define PHY_LED1_ACT (0x8<<4)
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#define PHY_LED2_INT (0xe<<8)
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#define PHY_SPEC_CTRL 0x1c
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#define PHY_RGMII_CLK_STABLE (0x1<<10)
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#define PHY_CLSA (0x1<<1)
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/* Configure and enable MV88E3018 PHY */
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void reset_phy(void)
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{
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char *name = "egiga0";
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unsigned short reg;
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if (miiphy_set_current_dev(name))
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return;
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/* RGMII clk transition on data stable */
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if (miiphy_read(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL, ®) != 0)
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printf("Error reading PHY spec ctrl reg\n");
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if (miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL,
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reg | PHY_RGMII_CLK_STABLE | PHY_CLSA) != 0)
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printf("Error writing PHY spec ctrl reg\n");
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/* leds setup */
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if (miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_LED_SEL,
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PHY_LED0_LINK | PHY_LED1_ACT | PHY_LED2_INT) != 0)
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printf("Error writing PHY LED reg\n");
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/* reset the phy */
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miiphy_reset(name, CONFIG_PHY_BASE_ADR);
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}
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#else
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/* Configure and enable MV88E1118 PHY on the piggy*/
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void reset_phy(void)
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{
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char *name = "egiga0";
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if (miiphy_set_current_dev(name))
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return;
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/* reset the phy */
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miiphy_reset(name, CONFIG_PHY_BASE_ADR);
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}
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#endif
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#if defined(CONFIG_HUSH_INIT_VAR)
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int hush_init_var(void)
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{
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ivm_read_eeprom();
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return 0;
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}
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#endif
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#if defined(CONFIG_BOOTCOUNT_LIMIT)
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void bootcount_store(ulong a)
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{
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volatile ulong *save_addr;
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volatile ulong size = 0;
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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size += gd->bd->bi_dram[i].size;
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}
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save_addr = (ulong*)(size - BOOTCOUNT_ADDR);
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writel(a, save_addr);
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writel(BOOTCOUNT_MAGIC, &save_addr[1]);
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}
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ulong bootcount_load(void)
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{
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volatile ulong *save_addr;
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volatile ulong size = 0;
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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size += gd->bd->bi_dram[i].size;
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}
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save_addr = (ulong*)(size - BOOTCOUNT_ADDR);
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if (readl(&save_addr[1]) != BOOTCOUNT_MAGIC)
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return 0;
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else
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return readl(save_addr);
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}
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#endif
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#if defined(CONFIG_SOFT_I2C)
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void set_sda(int state)
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{
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I2C_ACTIVE;
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I2C_SDA(state);
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}
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void set_scl(int state)
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{
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I2C_SCL(state);
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}
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int get_sda(void)
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{
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I2C_TRISTATE;
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return I2C_READ;
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}
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int get_scl(void)
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{
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return kw_gpio_get_value(KM_KIRKWOOD_SCL_PIN) ? 1 : 0;
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}
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#endif
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#if defined(CONFIG_SYS_EEPROM_WREN)
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int eeprom_write_enable(unsigned dev_addr, int state)
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{
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kw_gpio_set_value(KM_KIRKWOOD_ENV_WP, !state);
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return !kw_gpio_get_value(KM_KIRKWOOD_ENV_WP);
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}
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#endif
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