[U-Boot] [PATCH] imx: mx6ul: support mx6ul 9x9 evk board

Peng Fan
2015-09-06T04:49:21Z

This patch is to support mx6ul_9x9_evk board based on mx6ul_14x14_evk,
the difference between mx6ul 9x9 evk and mx6ul 14x14 evk are:
1. mx6ul 9x9 evk use pfuze3000, while mx6ul 14x14 evk use DCDC.
2. mx6ul 9x9 evk supports 256MB LPDDR2, while mx6ul 14x14 evk
supports 512MB DDR3
3. mx6ul_9x9_evk use 9x9 package, while mx6ul_14x14_evk use 14x14 package.

This patch add the following:
1. Discard PHYS_SDRAM_SIZE from header file, use imx_ddr_size()
2. Introduce a macro is_mx6ul_9x9_evk using
CONFIG_IS_ENABLED(TARGET_MX6UL_9X9_EVK) to avoid "#ifdef xxx" in non-SPL
part. To SPL part, CONFIG_IS_ENABLED(TARGET_MX6UL_9X9_EVK) can not work,
so still use "#ifdef CONFIG_TARGET_MX6UL_9X9_EVK" to differentiate with
mx6ul_14x14_evk. And we have no way to dymaically checking this chip
is 9x9 or 14x14.
3. mx6ul_9x9_evk use pfuze3000, so enabled POWER related configurations.
POWER related configurations also effect for mx6ul_14x14_evk. But
power_init_board implementation using 'if (is_mx6ul_9x9_evk())' to
do initialization for mx6ul_9x9_evk, and do nothing for mx6ul_14x14_evk.
4. mx6ul_9x9_evk use lpddr2 with size 256MB, so add related SPL DRAM
configurations.
5. Enable CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG and setting dtb file
according to board_rev and board_name.
6. Add TARGET_MX6UL_9X9_EVK Kconfig entry

Boot Log:
U-Boot SPL 2015.10-rc2-00356-g536ce34 (Sep 06 2015 - 12:22:53)
reading u-boot.img
reading u-boot.img

U-Boot 2015.10-rc2-00356-g536ce34 (Sep 06 2015 - 12:22:53 +0800)

CPU: Freescale i.MX6UL rev1.0 792 MHz (running at 396 MHz)
CPU: Commercial temperature grade (0C to 95C) at 41C
Reset cause: POR
Board: MX6UL 9x9 EVK
I2C: ready
DRAM: 256 MiB
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
MMC: FSL_SDHC: 0, FSL_SDHC: 1
In: serial
Out: serial
Err: serial
Net: FEC1
Hit any key to stop autoboot: 0

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
---
arch/arm/cpu/armv7/mx6/Kconfig | 8 +
board/freescale/mx6ul_14x14_evk/Kconfig | 2 +-
board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c | 183 ++++++++++++++++++----
configs/mx6ul_9x9_evk_defconfig | 8 +
include/configs/imx6_spl.h | 1 +
include/configs/mx6ul_14x14_evk.h | 26 ++-
6 files changed, 191 insertions(+), 37 deletions(-)
create mode 100644 configs/mx6ul_9x9_evk_defconfig

diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index 8b0120f..b3f7eaf 100644
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -104,6 +104,14 @@ config TARGET_MX6SXSABRESD
select DM
select DM_THERMAL

+config TARGET_MX6UL_9X9_EVK
+ bool "mx6ul_9x9_evk"
+ select MX6UL
+ select CPU_V7
+ select DM
+ select DM_THERMAL
+ select SUPPORT_SPL
+
config TARGET_MX6UL_14X14_EVK
bool "mx6ul_14x14_evk"
select MX6UL
diff --git a/board/freescale/mx6ul_14x14_evk/Kconfig b/board/freescale/mx6ul_14x14_evk/Kconfig
index 393aca6..eda02c9 100644
--- a/board/freescale/mx6ul_14x14_evk/Kconfig
+++ b/board/freescale/mx6ul_14x14_evk/Kconfig
@@ -1,4 +1,4 @@
-if TARGET_MX6UL_14X14_EVK
+if TARGET_MX6UL_14X14_EVK || TARGET_MX6UL_9X9_EVK

config SYS_BOARD
default "mx6ul_14x14_evk"
diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
index c09d84e..612fb78 100644
--- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
+++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
@@ -23,6 +23,9 @@
#include <linux/sizes.h>
#include <mmc.h>
#include <netdev.h>
+#include <power/pmic.h>
+#include <power/pfuze3000_pmic.h>
+#include "../common/pfuze.h"
#include <usb.h>
#include <usb/ehci-fsl.h>

@@ -210,11 +213,56 @@ struct i2c_pads_info i2c_pad_info1 = {
.gp = IMX_GPIO_NR(1, 29),
},
};
+
+#ifdef CONFIG_POWER
+#define I2C_PMIC 0
+int power_init_board(void)
+{
+ if (is_mx6ul_9x9_evk()) {
+ struct pmic *pfuze;
+ int ret;
+ unsigned int reg, rev_id;
+
+ ret = power_pfuze3000_init(I2C_PMIC);
+ if (ret)
+ return ret;
+
+ pfuze = pmic_get("PFUZE3000");
+ ret = pmic_probe(pfuze);
+ if (ret)
+ return ret;
+
+ pmic_reg_read(pfuze, PFUZE3000_DEVICEID, &reg);
+ pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id);
+ printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n",
+ reg, rev_id);
+
+ /* disable Low Power Mode during standby mode */
+ pmic_reg_read(pfuze, PFUZE3000_LDOGCTL, &reg);
+ reg |= 0x1;
+ pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, reg);
+
+ /* SW1B step ramp up time from 2us to 4us/25mV */
+ reg = 0x40;
+ pmic_reg_write(pfuze, PFUZE3000_SW1BCONF, reg);
+
+ /* SW1B mode to APS/PFM */
+ reg = 0xc;
+ pmic_reg_write(pfuze, PFUZE3000_SW1BMODE, reg);
+
+ /* SW1B standby voltage set to 0.975V */
+ reg = 0xb;
+ pmic_reg_write(pfuze, PFUZE3000_SW1BSTBY, reg);
+ }
+
+ return 0;
+}
+#endif
#endif

int dram_init(void)
{
- gd->ram_size = PHYS_SDRAM_SIZE;
+ gd->ram_size = imx_ddr_size();

return 0;
}
@@ -614,6 +662,15 @@ int board_late_init(void)
add_board_boot_modes(board_boot_modes);
#endif

+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ setenv("board_name", "EVK");
+
+ if (is_mx6ul_9x9_evk())
+ setenv("board_rev", "9X9");
+ else
+ setenv("board_rev", "14X14");
+#endif
+
return 0;
}

@@ -624,7 +681,10 @@ u32 get_board_rev(void)

int checkboard(void)
{
- puts("Board: MX6UL 14x14 EVK\n");
+ if (is_mx6ul_9x9_evk())
+ puts("Board: MX6UL 9x9 EVK\n");
+ else
+ puts("Board: MX6UL 14x14 EVK\n");

return 0;
}
@@ -634,7 +694,76 @@ int checkboard(void)
#include <spl.h>
#include <asm/arch/mx6-ddr.h>

-const struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
+
+static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
+ .grp_addds = 0x00000030,
+ .grp_ddrmode_ctl = 0x00020000,
+ .grp_b0ds = 0x00000030,
+ .grp_ctlds = 0x00000030,
+ .grp_b1ds = 0x00000030,
+ .grp_ddrpke = 0x00000000,
+ .grp_ddrmode = 0x00020000,
+#ifdef CONFIG_TARGET_MX6UL_9X9_EVK
+ .grp_ddr_type = 0x00080000,
+#else
+ .grp_ddr_type = 0x000c0000,
+#endif
+};
+
+#ifdef CONFIG_TARGET_MX6UL_9X9_EVK
+static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
+ .dram_dqm0 = 0x00000030,
+ .dram_dqm1 = 0x00000030,
+ .dram_ras = 0x00000030,
+ .dram_cas = 0x00000030,
+ .dram_odt0 = 0x00000000,
+ .dram_odt1 = 0x00000000,
+ .dram_sdba2 = 0x00000000,
+ .dram_sdclk_0 = 0x00000030,
+ .dram_sdqs0 = 0x00003030,
+ .dram_sdqs1 = 0x00003030,
+ .dram_reset = 0x00000030,
+};
+
+static struct mx6_mmdc_calibration mx6_mmcd_calib = {
+ .p0_mpwldectrl0 = 0x00000000,
+ .p0_mpdgctrl0 = 0x20000000,
+ .p0_mprddlctl = 0x4040484f,
+ .p0_mpwrdlctl = 0x40405247,
+ .mpzqlp2ctl = 0x1b4700c7,
+};
+
+static struct mx6_lpddr2_cfg mem_ddr = {
+ .mem_speed = 800,
+ .density = 2,
+ .width = 16,
+ .banks = 4,
+ .rowaddr = 14,
+ .coladdr = 10,
+ .trcd_lp = 1500,
+ .trppb_lp = 1500,
+ .trpab_lp = 2000,
+ .trasmin = 4250,
+};
+
+struct mx6_ddr_sysinfo ddr_sysinfo = {
+ .dsize = 0,
+ .cs_density = 18,
+ .ncs = 1,
+ .cs1_mirror = 0,
+ .walat = 0,
+ .ralat = 5,
+ .mif3_mode = 3,
+ .bi_on = 1,
+ .rtt_wr = 0, /* LPDDR2 does not need rtt_wr rtt_nom */
+ .rtt_nom = 0,
+ .sde_to_rst = 0, /* LPDDR2 does not need this field */
+ .rst_to_cke = 0x10, /* JEDEC value for LPDDR2: 200us */
+ .ddr_type = DDR_TYPE_LPDDR2,
+};
+
+#else
+static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_dqm0 = 0x00000030,
.dram_dqm1 = 0x00000030,
.dram_ras = 0x00000030,
@@ -648,24 +777,29 @@ const struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_reset = 0x00000030,
};

-const struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
- .grp_addds = 0x00000030,
- .grp_ddrmode_ctl = 0x00020000,
- .grp_b0ds = 0x00000030,
- .grp_ctlds = 0x00000030,
- .grp_b1ds = 0x00000030,
- .grp_ddrpke = 0x00000000,
- .grp_ddrmode = 0x00020000,
- .grp_ddr_type = 0x000c0000,
-};
-
-const struct mx6_mmdc_calibration mx6_mmcd_calib = {
+static struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpwldectrl0 = 0x00070007,
.p0_mpdgctrl0 = 0x41490145,
.p0_mprddlctl = 0x40404546,
.p0_mpwrdlctl = 0x4040524D,
};

+struct mx6_ddr_sysinfo ddr_sysinfo = {
+ .dsize = 0,
+ .cs_density = 20,
+ .ncs = 1,
+ .cs1_mirror = 0,
+ .rtt_wr = 2,
+ .rtt_nom = 1, /* RTT_Nom = RZQ/2 */
+ .walat = 1, /* Write additional latency */
+ .ralat = 5, /* Read additional latency */
+ .mif3_mode = 3, /* Command prediction working mode */
+ .bi_on = 1, /* Bank interleaving enabled */
+ .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
+ .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
+ .ddr_type = DDR_TYPE_DDR3,
+};
+
static struct mx6_ddr3_cfg mem_ddr = {
.mem_speed = 800,
.density = 4,
@@ -678,6 +812,7 @@ static struct mx6_ddr3_cfg mem_ddr = {
.trcmin = 4875,
.trasmin = 3500,
};
+#endif

static void ccgr_init(void)
{
@@ -695,24 +830,8 @@ static void ccgr_init(void)

static void spl_dram_init(void)
{
- struct mx6_ddr_sysinfo sysinfo = {
- .dsize = 0,
- .cs_density = 20,
- .ncs = 1,
- .cs1_mirror = 0,
- .rtt_wr = 2,
- .rtt_nom = 1, /* RTT_Nom = RZQ/2 */
- .walat = 1, /* Write additional latency */
- .ralat = 5, /* Read additional latency */
- .mif3_mode = 3, /* Command prediction working mode */
- .bi_on = 1, /* Bank interleaving enabled */
- .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
- .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
- .ddr_type = DDR_TYPE_DDR3,
- };
-
mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
- mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+ mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
}

void board_init_f(ulong dummy)
diff --git a/configs/mx6ul_9x9_evk_defconfig b/configs/mx6ul_9x9_evk_defconfig
new file mode 100644
index 0000000..e54609d
--- /dev/null
+++ b/configs/mx6ul_9x9_evk_defconfig
@@ -0,0 +1,8 @@
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg"
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_TARGET_MX6UL_9X9_EVK=y
+CONFIG_SPL=y
+CONFIG_CMD_NET=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_DHCP=y
diff --git a/include/configs/imx6_spl.h b/include/configs/imx6_spl.h
index 1744f2c..82ec798 100644
--- a/include/configs/imx6_spl.h
+++ b/include/configs/imx6_spl.h
@@ -10,6 +10,7 @@
#ifdef CONFIG_SPL

#define CONFIG_SPL_FRAMEWORK
+#include <linux/kconfig.h>

/*
* see Figure 8-3 in IMX6DQ/IMX6SDL Reference manuals:
diff --git a/include/configs/mx6ul_14x14_evk.h b/include/configs/mx6ul_14x14_evk.h
index 4a2280b..4d4db69 100644
--- a/include/configs/mx6ul_14x14_evk.h
+++ b/include/configs/mx6ul_14x14_evk.h
@@ -14,12 +14,16 @@
#include "mx6_common.h"
#include <asm/imx-common/gpio.h>

+#define is_mx6ul_9x9_evk() CONFIG_IS_ENABLED(TARGET_MX6UL_9X9_EVK)
+
/* SPL options */
#define CONFIG_SPL_LIBCOMMON_SUPPORT
#define CONFIG_SPL_MMC_SUPPORT
#define CONFIG_SPL_FAT_SUPPORT
#include "imx6_spl.h"

+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
#define CONFIG_ROM_UNIFIED_SECTIONS
#define CONFIG_SYS_GENERIC_BOARD
#define CONFIG_DISPLAY_CPUINFO
@@ -66,9 +70,13 @@
#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_MXC
#define CONFIG_SYS_I2C_SPEED 100000
-#endif

-#define PHYS_SDRAM_SIZE SZ_512M
+/* PMIC only for 9X9 EVK */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
+#define CONFIG_POWER_PFUZE3000
+#define CONFIG_POWER_PFUZE3000_I2C_ADDR 0x08
+#endif

#undef CONFIG_CMD_IMLS

@@ -80,7 +88,7 @@
"console=ttymxc0\0" \
"fdt_high=0xffffffff\0" \
"initrd_high=0xffffffff\0" \
- "fdt_file=imx6ul-14x14-evk.dtb\0" \
+ "fdt_file=undefined\0" \
"fdt_addr=0x83000000\0" \
"boot_fdt=try\0" \
"ip_dyn=yes\0" \
@@ -134,9 +142,19 @@
"fi; " \
"else " \
"bootz; " \
- "fi;\0"
+ "fi;\0" \
+ "findfdt="\
+ "if test $fdt_file = undefined; then " \
+ "if test $board_name = EVK && test $board_rev = 9X9; then " \
+ "setenv fdt_file imx6ul-9x9-evk.dtb; fi; " \
+ "if test $board_name = EVK && test $board_rev = 14X14; then " \
+ "setenv fdt_file imx6ul-14x14-evk.dtb; fi; " \
+ "if test $fdt_file = undefined; then " \
+ "echo WARNING: Could not determine dtb to use; fi; " \
+ "fi;\0" \

#define CONFIG_BOOTCOMMAND \
+ "run findfdt;" \
"mmc dev ${mmcdev};" \
"mmc dev ${mmcdev}; if mmc rescan; then " \
"if run loadbootscript; then " \
--
1.8.4