[U-Boot] [PATCH v2 1/5] mx6cuboxi: Fix the defconfig name

[U-Boot] [PATCH v2 1/5] mx6cuboxi: Fix the defconfig name

[Fabio Estevam]

The correct name of the defconfig file is 'mx6cuboxi_defconfig'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- None

 board/solidrun/mx6cuboxi/MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/board/solidrun/mx6cuboxi/MAINTAINERS b/board/solidrun/mx6cuboxi/MAINTAINERS
index 3d468ed..a3506c2 100644
--- a/board/solidrun/mx6cuboxi/MAINTAINERS
+++ b/board/solidrun/mx6cuboxi/MAINTAINERS
@@ -3,4 +3,4 @@ M:	Fabio Estevam <fabio.estevam@freescale.com>
 S:	Maintained
 F:	board/solidrun/mx6cuboxi/
 F:	include/configs/mx6cuboxi.h
-F:	configs/mx6cuboxi_spl_defconfig
+F:	configs/mx6cuboxi_defconfig
-- 
1.9.1

[U-Boot] [PATCH v2 2/5] mx6cuboxi: Prepare for multi SoC support

[Fabio Estevam]

Cubox-i and Hummingboard support several MX6 SoCs: mx6solo, mx6dual-lite,
mx6dual and mx6quad.

Use IOMUX_PADS() macro in order to prepare for the multi-SoC support. 
Also pass 'MX6QDL' in the defconfig to indicate it. 

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- None

 board/solidrun/mx6cuboxi/mx6cuboxi.c | 60 ++++++++++++++++++------------------
 configs/mx6cuboxi_defconfig          |  2 +-
 2 files changed, 31 insertions(+), 31 deletions(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index b696dcb..0377dc4 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -28,7 +28,6 @@
 #include <asm/arch/crm_regs.h>
 #include <asm/io.h>
 #include <asm/arch/sys_proto.h>
-#include <asm/arch/mx6-ddr.h>
 #include <spl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -59,22 +58,22 @@ int dram_init(void)
 }
 
 static iomux_v3_cfg_t const uart1_pads[] = {
-	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
-	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
+	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 };
 
 static iomux_v3_cfg_t const usdhc2_pads[] = {
-	MX6_PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD2_DAT0__SD2_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
-	MX6_PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 };
 
 static void setup_iomux_uart(void)
 {
-	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+	SETUP_IOMUX_PADS(uart1_pads);
 }
 
 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
@@ -88,7 +87,7 @@ int board_mmc_getcd(struct mmc *mmc)
 
 int board_mmc_init(bd_t *bis)
 {
-	imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+	SETUP_IOMUX_PADS(usdhc2_pads);
 	usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
 	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
@@ -97,33 +96,33 @@ int board_mmc_init(bd_t *bis)
 }
 
 static iomux_v3_cfg_t const enet_pads[] = {
-	MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 	/* AR8035 reset */
-	MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 	/* AR8035 interrupt */
-	MX6_PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL)),
 	/* GPIO16 -> AR8035 25MHz */
-	MX6_PAD_GPIO_16__ENET_REF_CLK	  | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_RGMII_TXC__RGMII_TXC	  | MUX_PAD_CTRL(NO_PAD_CTRL),
-	MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK	  | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC	  | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
 	/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
-	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
-	MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
-	MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
-	MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
-	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK)),
+	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
+	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
+	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
 };
 
 static void setup_iomux_enet(void)
 {
-	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+	SETUP_IOMUX_PADS(enet_pads);
 
 	gpio_direction_output(ETH_PHY_RESET, 0);
 	mdelay(2);
@@ -175,6 +174,7 @@ int checkboard(void)
 }
 
 #ifdef CONFIG_SPL_BUILD
+#include <asm/arch/mx6-ddr.h>
 static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
 	.dram_sdclk_0 =  0x00020030,
 	.dram_sdclk_1 =  0x00020030,
diff --git a/configs/mx6cuboxi_defconfig b/configs/mx6cuboxi_defconfig
index 85dc58a..4c2f0e0 100644
--- a/configs/mx6cuboxi_defconfig
+++ b/configs/mx6cuboxi_defconfig
@@ -1,5 +1,5 @@
 CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6Q"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL"
 CONFIG_ARM=y
 CONFIG_TARGET_MX6CUBOXI=y
 CONFIG_DM=y
-- 
1.9.1

[U-Boot] [PATCH v2 3/5] mx6cuboxi: Introduce multi-SoC support

[Fabio Estevam]

Cubox-i and Hummingboard support several MX6 SoCs: mx6solo, mx6dual-lite,
mx6dual and mx6quad. Add support for the different SoC/memory sizes 
combinations.

DDR initialization values were extracted from Solid-run internal U-boot.

Tested on a CuBox-i4Pro, HummingBoard-i2eX and HummingBoard-i1.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- Mention that the DDR init came from Solid-run

 board/solidrun/mx6cuboxi/mx6cuboxi.c | 134 ++++++++++++++++++++++++++++++++---
 1 file changed, 125 insertions(+), 9 deletions(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 0377dc4..1f240ae 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -175,7 +175,7 @@ int checkboard(void)
 
 #ifdef CONFIG_SPL_BUILD
 #include <asm/arch/mx6-ddr.h>
-static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
+static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
 	.dram_sdclk_0 =  0x00020030,
 	.dram_sdclk_1 =  0x00020030,
 	.dram_cas =  0x00020030,
@@ -204,7 +204,36 @@ static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
 	.dram_dqm7 =  0x00020030,
 };
 
-static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
+static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
+	.dram_sdclk_0 = 0x00000028,
+	.dram_sdclk_1 = 0x00000028,
+	.dram_cas =	0x00000028,
+	.dram_ras =	0x00000028,
+	.dram_reset =	0x000c0028,
+	.dram_sdcke0 =	0x00003000,
+	.dram_sdcke1 =	0x00003000,
+	.dram_sdba2 =	0x00000000,
+	.dram_sdodt0 =	0x00003030,
+	.dram_sdodt1 =	0x00003030,
+	.dram_sdqs0 =	0x00000028,
+	.dram_sdqs1 =	0x00000028,
+	.dram_sdqs2 =	0x00000028,
+	.dram_sdqs3 =	0x00000028,
+	.dram_sdqs4 =	0x00000028,
+	.dram_sdqs5 =	0x00000028,
+	.dram_sdqs6 =	0x00000028,
+	.dram_sdqs7 =	0x00000028,
+	.dram_dqm0 =	0x00000028,
+	.dram_dqm1 =	0x00000028,
+	.dram_dqm2 =	0x00000028,
+	.dram_dqm3 =	0x00000028,
+	.dram_dqm4 =	0x00000028,
+	.dram_dqm5 =	0x00000028,
+	.dram_dqm6 =	0x00000028,
+	.dram_dqm7 =	0x00000028,
+};
+
+static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
 	.grp_ddr_type =  0x000C0000,
 	.grp_ddrmode_ctl =  0x00020000,
 	.grp_ddrpke =  0x00000000,
@@ -221,7 +250,25 @@ static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
 	.grp_b7ds =  0x00000030,
 };
 
-static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
+static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
+	.grp_ddr_type = 0x000c0000,
+	.grp_ddrmode_ctl = 0x00020000,
+	.grp_ddrpke = 0x00000000,
+	.grp_addds = 0x00000028,
+	.grp_ctlds = 0x00000028,
+	.grp_ddrmode = 0x00020000,
+	.grp_b0ds = 0x00000028,
+	.grp_b1ds = 0x00000028,
+	.grp_b2ds = 0x00000028,
+	.grp_b3ds = 0x00000028,
+	.grp_b4ds = 0x00000028,
+	.grp_b5ds = 0x00000028,
+	.grp_b6ds = 0x00000028,
+	.grp_b7ds = 0x00000028,
+};
+
+/* microSOM with Dual processor and 1GB memory */
+static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00000000,
 	.p0_mpwldectrl1 =  0x00000000,
 	.p1_mpwldectrl0 =  0x00000000,
@@ -236,7 +283,49 @@ static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 	.p1_mpwrdlctl =    0x422a423c,
 };
 
-static struct mx6_ddr3_cfg mem_ddr = {
+/* microSOM with Quad processor and 2GB memory */
+static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
+	.p0_mpwldectrl0 =  0x00000000,
+	.p0_mpwldectrl1 =  0x00000000,
+	.p1_mpwldectrl0 =  0x00000000,
+	.p1_mpwldectrl1 =  0x00000000,
+	.p0_mpdgctrl0 =    0x0314031c,
+	.p0_mpdgctrl1 =    0x023e0304,
+	.p1_mpdgctrl0 =    0x03240330,
+	.p1_mpdgctrl1 =    0x03180260,
+	.p0_mprddlctl =    0x3630323c,
+	.p1_mprddlctl =    0x3436283a,
+	.p0_mpwrdlctl =    0x36344038,
+	.p1_mpwrdlctl =    0x422a423c,
+};
+
+/* microSOM with Solo processor and 512MB memory */
+static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
+	.p0_mpwldectrl0 = 0x0045004D,
+	.p0_mpwldectrl1 = 0x003A0047,
+	.p0_mpdgctrl0 =   0x023C0224,
+	.p0_mpdgctrl1 =   0x02000220,
+	.p0_mprddlctl =   0x44444846,
+	.p0_mpwrdlctl =   0x32343032,
+};
+
+/* microSOM with Dual lite processor and 1GB memory */
+static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
+	.p0_mpwldectrl0 =  0x0045004D,
+	.p0_mpwldectrl1 =  0x003A0047,
+	.p1_mpwldectrl0 =  0x001F001F,
+	.p1_mpwldectrl1 =  0x00210035,
+	.p0_mpdgctrl0 =    0x023C0224,
+	.p0_mpdgctrl1 =    0x02000220,
+	.p1_mpdgctrl0 =    0x02200220,
+	.p1_mpdgctrl1 =    0x02000220,
+	.p0_mprddlctl =    0x44444846,
+	.p1_mprddlctl =    0x4042463C,
+	.p0_mpwrdlctl =    0x32343032,
+	.p1_mpwrdlctl =    0x36363430,
+};
+
+static struct mx6_ddr3_cfg mem_ddr_2g = {
 	.mem_speed = 1600,
 	.density   = 2,
 	.width     = 16,
@@ -250,6 +339,19 @@ static struct mx6_ddr3_cfg mem_ddr = {
 	.SRT       = 1,
 };
 
+static struct mx6_ddr3_cfg mem_ddr_4g = {
+	.mem_speed = 1600,
+	.density = 4,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 15,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1375,
+	.trcmin = 4875,
+	.trasmin = 3500,
+};
+
 static void ccgr_init(void)
 {
 	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
@@ -278,11 +380,11 @@ static void gpr_init(void)
  * This section requires the differentiation between Solidrun mx6 boards, but
  * for now, it will configure only for the mx6dual hummingboard version.
  */
-static void spl_dram_init(void)
+static void spl_dram_init(int width)
 {
 	struct mx6_ddr_sysinfo sysinfo = {
 		/* width of data bus: 0=16, 1=32, 2=64 */
-		.dsize = 2,
+		.dsize = width / 32,
 		/* config for full 4GB range so that get_mem_size() works */
 		.cs_density = 32,	/* 32Gb per CS */
 		.ncs = 1,		/* single chip select */
@@ -297,8 +399,19 @@ static void spl_dram_init(void)
 		.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
 	};
 
-	mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
-	mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+	if (is_cpu_type(MXC_CPU_MX6D) || is_cpu_type(MXC_CPU_MX6Q))
+		mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
+	else
+		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
+
+	if (is_cpu_type(MXC_CPU_MX6D))
+		mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
+	else if (is_cpu_type(MXC_CPU_MX6Q))
+		mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
+	else if (is_cpu_type(MXC_CPU_MX6DL))
+		mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
+	else if (is_cpu_type(MXC_CPU_MX6SOLO))
+		mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
 }
 
 void board_init_f(ulong dummy)
@@ -319,7 +432,10 @@ void board_init_f(ulong dummy)
 	preloader_console_init();
 
 	/* DDR initialization */
-	spl_dram_init();
+	if (is_cpu_type(MXC_CPU_MX6SOLO))
+		spl_dram_init(32);
+	else
+		spl_dram_init(64);
 
 	/* Clear the BSS. */
 	memset(__bss_start, 0, __bss_end - __bss_start);
-- 
1.9.1

[U-Boot] [PATCH v2 4/5] mx6cuboxi: Differentiate Cubox-i and Hummingboard

[Fabio Estevam]

Introduce is_hummingboard() function that reads GPIOs that can distinguish
between Cubox-i and Hummingboard.

Print the board name accordingly.

Based on a patch from Rabeeh Khoury.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- Attribute the credit to Rabeeh

 board/solidrun/mx6cuboxi/mx6cuboxi.c | 41 +++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 1f240ae..83410b2 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -71,6 +71,12 @@ static iomux_v3_cfg_t const usdhc2_pads[] = {
 	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 };
 
+static iomux_v3_cfg_t const hb_cbi_sense[] = {
+	/* These pins are for sensing if it is a CuBox-i or a HummingBoard */
+	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09  | MUX_PAD_CTRL(UART_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04   | MUX_PAD_CTRL(UART_PAD_CTRL)),
+};
+
 static void setup_iomux_uart(void)
 {
 	SETUP_IOMUX_PADS(uart1_pads);
@@ -167,9 +173,42 @@ int board_init(void)
 	return 0;
 }
 
+static bool is_hummingboard(void)
+{
+	int val1, val2;
+
+	SETUP_IOMUX_PADS(hb_cbi_sense);
+
+	gpio_direction_input(IMX_GPIO_NR(4, 9));
+	gpio_direction_input(IMX_GPIO_NR(3, 4));
+
+	val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
+	val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
+
+	/*
+	 * Machine selection -
+	 * Machine        val1, val2
+	 * -------------------------
+	 * HB rev 3.x     x     0
+	 * CBi            0     1
+	 * HB             1     1
+	 */
+
+	if (val2 == 0)
+		return true;
+	else if (val1 == 0)
+		return false;
+	else
+		return true;
+}
+
 int checkboard(void)
 {
-	puts("Board: MX6 Hummingboard\n");
+	if (is_hummingboard())
+		puts("Board: MX6 Hummingboard\n");
+	else
+		puts("Board: MX6 Cubox-i\n");
+
 	return 0;
 }
 
-- 
1.9.1

[U-Boot] [PATCH v2 5/5] mx6cuboxi: Load the correct 'fdt_file' variable

[Fabio Estevam]

Instead of hardcoding the 'fdt_file' variable, let's detect the SoC and
board variant on the fly and change the dtb name.

Based on a patch from Rabeeh Khoury.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v1:
- Attribute the credit to Rabeeh
- Create a U-boot command for checking if the board is hummingboard

 board/solidrun/mx6cuboxi/mx6cuboxi.c | 30 ++++++++++++++++++++++++++++++
 include/configs/mx6cuboxi.h          | 12 ++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 83410b2..4ea6081 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -212,6 +212,36 @@ int checkboard(void)
 	return 0;
 }
 
+static const char *build_dts_prefix(void)
+{
+	if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
+		return "imx6q";
+	else if (is_cpu_type(MXC_CPU_MX6DL) || is_cpu_type(MXC_CPU_MX6SOLO))
+		return "imx6dl";
+
+	return "unknown";
+}
+
+static int do_is_hummingboard(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	if (is_hummingboard())
+		return CMD_RET_SUCCESS;
+	else
+		return CMD_RET_FAILURE;
+}
+
+U_BOOT_CMD(
+	is_hummingboard, 1, 1, do_is_hummingboard,
+	"detect if it is a Hummingboard or Cubox-i",
+	""
+);
+
+int misc_init_r(void)
+{
+	setenv("dts_prefix", build_dts_prefix());
+	return 0;
+}
+
 #ifdef CONFIG_SPL_BUILD
 #include <asm/arch/mx6-ddr.h>
 static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
index 5d58b16..c3cf633 100644
--- a/include/configs/mx6cuboxi.h
+++ b/include/configs/mx6cuboxi.h
@@ -29,6 +29,7 @@
 
 #define CONFIG_SYS_MALLOC_LEN		(2 * SZ_1M)
 #define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_MISC_INIT_R
 #define CONFIG_MXC_GPIO
 #define CONFIG_MXC_UART
 #define CONFIG_CMD_FUSE
@@ -81,14 +82,19 @@
 #define CONFIG_MXC_UART_BASE	UART1_BASE
 #define CONFIG_CONSOLE_DEV	"ttymxc0"
 #define CONFIG_MMCROOT		"/dev/mmcblk0p2"
-#define CONFIG_DEFAULT_FDT_FILE	"imx6q-hummingboard.dtb"
 #define CONFIG_SYS_FSL_USDHC_NUM	1
 #define CONFIG_SYS_MMC_ENV_DEV		0	/* SDHC2 */
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"script=boot.scr\0" \
 	"image=zImage\0" \
-	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"check_suffix=" \
+		"if is_hummingboard; then " \
+			"setenv dts_suffix -hummingboard.dtb;" \
+		"else " \
+			"setenv dts_suffix -cubox-i.dtb;" \
+		"fi; "\
+	"setenv fdt_file ${dts_prefix}${dts_suffix};" \
 	"fdt_addr=0x18000000\0" \
 	"boot_fdt=try\0" \
 	"ip_dyn=yes\0" \
@@ -119,6 +125,7 @@
 	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
 	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
 	"mmcboot=echo Booting from mmc ...; " \
+		"run check_suffix; "\
 		"run mmcargs; " \
 		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
 			"if run loadfdt; then " \
@@ -137,6 +144,7 @@
 		"root=/dev/nfs " \
 		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
 	"netboot=echo Booting from net ...; " \
+		"run check_suffix; "\
 		"run netargs; " \
 		"if test ${ip_dyn} = yes; then " \
 			"setenv get_cmd dhcp; " \
-- 
1.9.1

[U-Boot] [PATCH v2 4/5] mx6cuboxi: Differentiate Cubox-i and Hummingboard

[Stefano Babic]

Hi Fabio,

On 23/04/2015 21:29, Fabio Estevam wrote:
> Introduce is_hummingboard() function that reads GPIOs that can distinguish
> between Cubox-i and Hummingboard.
> 
> Print the board name accordingly.
> 
> Based on a patch from Rabeeh Khoury.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

Just to be sure: it is enough to refered to another patch in the commit
message ? I have supposed we have to add a Signed-off-by for Rabeeh, too.

Best regards,
Stefano Babic


-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================