igep003x: Add support for IGEP SMARC AM335x
The IGEP SMARC AM335x is an industrial processor module with
following highlights:
o AM3352 TI processor (Up to AM3359)
o Cortex-A8 ARM CPU
o SMARC form factor module
o Up to 512 MB DDR3 SDRAM / 512 MB FLASH
o WiFi a/b/g/n and Bluetooth v4.0 on-board
o Ethernet 10/100/1000 Mbps and 10/100 Mbps controller on-board
o JTAG debug connector available
o Designed for industrial range purposes
Signed-off-by: Pau Pajuelo <ppajuelo@iseebcn.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>
diff --git a/board/isee/igep003x/board.c b/board/isee/igep003x/board.c
index 9abb482..2d0ebbf 100644
--- a/board/isee/igep003x/board.c
+++ b/board/isee/igep003x/board.c
@@ -1,7 +1,7 @@
/*
- * Board functions for IGEP COM AQUILA based boards
+ * Board functions for IGEP COM AQUILA and SMARC AM335x based boards
*
- * Copyright (C) 2013, ISEE 2007 SL - http://www.isee.biz/
+ * Copyright (C) 2013-2017, ISEE 2007 SL - http://www.isee.biz/
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -26,21 +26,72 @@
#include <fdt_support.h>
#include <mtd_node.h>
#include <jffs2/load_kernel.h>
+#include <environment.h>
#include "board.h"
DECLARE_GLOBAL_DATA_PTR;
+/* GPIO0_27 and GPIO0_26 are used to read board revision from IGEP003x boards
+ * and control IGEP0034 green and red LEDs.
+ * U-boot configures these pins as input pullup to detect board revision:
+ * IGEP0034-LITE = 0b00
+ * IGEP0034 (FULL) = 0b01
+ * IGEP0033 = 0b1X
+ */
+#define GPIO_GREEN_REVISION 27
+#define GPIO_RED_REVISION 26
+
static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+/*
+ * Routine: get_board_revision
+ * Description: Returns the board revision
+ */
+static int get_board_revision(void)
+{
+ int revision;
+
+ gpio_request(GPIO_GREEN_REVISION, "green_revision");
+ gpio_direction_input(GPIO_GREEN_REVISION);
+ revision = 2 * gpio_get_value(GPIO_GREEN_REVISION);
+ gpio_free(GPIO_GREEN_REVISION);
+
+ gpio_request(GPIO_RED_REVISION, "red_revision");
+ gpio_direction_input(GPIO_RED_REVISION);
+ revision = revision + gpio_get_value(GPIO_RED_REVISION);
+ gpio_free(GPIO_RED_REVISION);
+
+ return revision;
+}
+
#ifdef CONFIG_SPL_BUILD
-static const struct ddr_data ddr3_data = {
+/* PN H5TQ4G63AFR is equivalent to MT41K256M16HA125*/
+static const struct ddr_data ddr3_igep0034_data = {
+ .datardsratio0 = MT41K256M16HA125E_RD_DQS,
+ .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
+ .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
+ .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
+};
+
+static const struct ddr_data ddr3_igep0034_lite_data = {
.datardsratio0 = K4B2G1646EBIH9_RD_DQS,
.datawdsratio0 = K4B2G1646EBIH9_WR_DQS,
.datafwsratio0 = K4B2G1646EBIH9_PHY_FIFO_WE,
.datawrsratio0 = K4B2G1646EBIH9_PHY_WR_DATA,
};
-static const struct cmd_control ddr3_cmd_ctrl_data = {
+static const struct cmd_control ddr3_igep0034_cmd_ctrl_data = {
+ .cmd0csratio = MT41K256M16HA125E_RATIO,
+ .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+ .cmd1csratio = MT41K256M16HA125E_RATIO,
+ .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+
+ .cmd2csratio = MT41K256M16HA125E_RATIO,
+ .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
+};
+
+static const struct cmd_control ddr3_igep0034_lite_cmd_ctrl_data = {
.cmd0csratio = K4B2G1646EBIH9_RATIO,
.cmd0iclkout = K4B2G1646EBIH9_INVERT_CLKOUT,
@@ -51,7 +102,17 @@
.cmd2iclkout = K4B2G1646EBIH9_INVERT_CLKOUT,
};
-static struct emif_regs ddr3_emif_reg_data = {
+static struct emif_regs ddr3_igep0034_emif_reg_data = {
+ .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
+ .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
+ .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
+ .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
+ .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
+ .zq_config = MT41K256M16HA125E_ZQ_CFG,
+ .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
+};
+
+static struct emif_regs ddr3_igep0034_lite_emif_reg_data = {
.sdram_config = K4B2G1646EBIH9_EMIF_SDCFG,
.ref_ctrl = K4B2G1646EBIH9_EMIF_SDREF,
.sdram_tim1 = K4B2G1646EBIH9_EMIF_TIM1,
@@ -61,6 +122,22 @@
.emif_ddr_phy_ctlr_1 = K4B2G1646EBIH9_EMIF_READ_LATENCY,
};
+const struct ctrl_ioregs ioregs_igep0034 = {
+ .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+ .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
+const struct ctrl_ioregs ioregs_igep0034_lite = {
+ .cm0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
+ .cm1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
+ .cm2ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
+ .dt0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
+ .dt1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
+};
+
#define OSC (V_OSCK/1000000)
const struct dpll_params dpll_ddr = {
400, OSC-1, 1, -1, -1, -1, -1};
@@ -80,18 +157,14 @@
enable_board_pin_mux();
}
-const struct ctrl_ioregs ioregs = {
- .cm0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
- .cm1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
- .cm2ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
- .dt0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
- .dt1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE,
-};
-
void sdram_init(void)
{
- config_ddr(400, &ioregs, &ddr3_data,
- &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
+ if (get_board_revision() == 1)
+ config_ddr(400, &ioregs_igep0034, &ddr3_igep0034_data,
+ &ddr3_igep0034_cmd_ctrl_data, &ddr3_igep0034_emif_reg_data, 0);
+ else
+ config_ddr(400, &ioregs_igep0034_lite, &ddr3_igep0034_lite_data,
+ &ddr3_igep0034_lite_cmd_ctrl_data, &ddr3_igep0034_lite_emif_reg_data, 0);
}
#endif
@@ -107,6 +180,26 @@
return 0;
}
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ switch (get_board_revision()) {
+ case 0:
+ setenv("board_name", "igep0034-lite");
+ break;
+ case 1:
+ setenv("board_name", "igep0034");
+ break;
+ default:
+ setenv("board_name", "igep0033");
+ break;
+ }
+#endif
+ return 0;
+}
+#endif
+
#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, bd_t *bd)
{
@@ -180,6 +273,9 @@
writel((GMII1_SEL_RMII | RMII1_IO_CLK_EN),
&cdev->miisel);
+ if (get_board_revision() == 1)
+ cpsw_slaves[0].phy_addr = 1;
+
rv = cpsw_register(&cpsw_data);
if (rv < 0)
printf("Error %d registering CPSW switch\n", rv);