[U-Boot] [PATCH 1/1] imx: mx6sabresd: add i.MX6DQP Sabresd support

[Peng Fan]

Add i.MX6DQP-Sabresd board support:
1. set fdt_file according to board_rev which is set at runtime.
2. Add mx6dqp_ddr_ioregs and calibration value for this board.

Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Fabio Estevam <fabio.estevam at freescale.com>
---

Before this patch needs to apply "pci: pcie_imx: Fix hang on mx6qp" from Fabio.
http://lists.denx.de/pipermail/u-boot/2015-October/230018.html.

 board/freescale/mx6sabresd/mx6sabresd.c | 69 ++++++++++++++++++++++++++++++---
 include/configs/mx6sabre_common.h       |  2 +
 2 files changed, 65 insertions(+), 6 deletions(-)

diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index 5644167..5b0b83e 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -684,7 +684,9 @@ int board_late_init(void)
 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 	setenv("board_name", "SABRESD");
 
-	if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
+	if (is_mx6dqp())
+		setenv("board_rev", "MX6QP");
+	else if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
 		setenv("board_rev", "MX6Q");
 	else if (is_cpu_type(MXC_CPU_MX6DL) || is_cpu_type(MXC_CPU_MX6SOLO))
 		setenv("board_rev", "MX6DL");
@@ -732,6 +734,35 @@ const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
 	.dram_dqm7 =  0x00020030,
 };
 
+const struct mx6dq_iomux_ddr_regs mx6dqp_ddr_ioregs = {
+	.dram_sdclk_0 =  0x00000030,
+	.dram_sdclk_1 =  0x00000030,
+	.dram_cas =  0x00000030,
+	.dram_ras =  0x00000030,
+	.dram_reset =  0x00000030,
+	.dram_sdcke0 =  0x00003000,
+	.dram_sdcke1 =  0x00003000,
+	.dram_sdba2 =  0x00000000,
+	.dram_sdodt0 =  0x00003030,
+	.dram_sdodt1 =  0x00003030,
+	.dram_sdqs0 =  0x00000030,
+	.dram_sdqs1 =  0x00000030,
+	.dram_sdqs2 =  0x00000030,
+	.dram_sdqs3 =  0x00000030,
+	.dram_sdqs4 =  0x00000030,
+	.dram_sdqs5 =  0x00000030,
+	.dram_sdqs6 =  0x00000030,
+	.dram_sdqs7 =  0x00000030,
+	.dram_dqm0 =  0x00000030,
+	.dram_dqm1 =  0x00000030,
+	.dram_dqm2 =  0x00000030,
+	.dram_dqm3 =  0x00000030,
+	.dram_dqm4 =  0x00000030,
+	.dram_dqm5 =  0x00000030,
+	.dram_dqm6 =  0x00000030,
+	.dram_dqm7 =  0x00000030,
+};
+
 const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
 	.grp_ddr_type =  0x000C0000,
 	.grp_ddrmode_ctl =  0x00020000,
@@ -764,6 +795,21 @@ const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 	.p1_mpwrdlctl =  0x48254A36,
 };
 
+const struct mx6_mmdc_calibration mx6dqp_mmcd_calib = {
+	.p0_mpwldectrl0 =  0x001B001E,
+	.p0_mpwldectrl1 =  0x002E0029,
+	.p1_mpwldectrl0 =  0x001B002A,
+	.p1_mpwldectrl1 =  0x0019002C,
+	.p0_mpdgctrl0 =  0x43240334,
+	.p0_mpdgctrl1 =  0x0324031A,
+	.p1_mpdgctrl0 =  0x43340344,
+	.p1_mpdgctrl1 =  0x03280276,
+	.p0_mprddlctl =  0x44383A3E,
+	.p1_mprddlctl =  0x3C3C3846,
+	.p0_mpwrdlctl =  0x2E303230,
+	.p1_mpwrdlctl =  0x38283E34,
+};
+
 /* MT41K128M16JT-125 */
 static struct mx6_ddr3_cfg mem_ddr = {
 	.mem_speed = 1600,
@@ -797,9 +843,15 @@ static void gpr_init(void)
 
 	/* enable AXI cache for VDOA/VPU/IPU */
 	writel(0xF00000CF, &iomux->gpr[4]);
-	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
-	writel(0x007F007F, &iomux->gpr[6]);
-	writel(0x007F007F, &iomux->gpr[7]);
+	if (is_mx6dqp()) {
+		/* set IPU AXI-id1 Qos=0x1 AXI-id0/2/3 Qos=0x7 */
+		writel(0x007F007F, &iomux->gpr[6]);
+		writel(0x007F007F, &iomux->gpr[7]);
+	} else {
+		/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+		writel(0x007F007F, &iomux->gpr[6]);
+		writel(0x007F007F, &iomux->gpr[7]);
+	}
 }
 
 /*
@@ -827,8 +879,13 @@ static void spl_dram_init(void)
 		.ddr_type = DDR_TYPE_DDR3,
 	};
 
-	mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
-	mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+	if (is_mx6dqp()) {
+		mx6dq_dram_iocfg(64, &mx6dqp_ddr_ioregs, &mx6_grp_ioregs);
+		mx6_dram_cfg(&sysinfo, &mx6dqp_mmcd_calib, &mem_ddr);
+	} else {
+		mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+		mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+	}
 }
 
 void board_init_f(ulong dummy)
diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h
index 9dcc64e..3e045ef 100644
--- a/include/configs/mx6sabre_common.h
+++ b/include/configs/mx6sabre_common.h
@@ -158,6 +158,8 @@
 					"setenv fdt_file imx6q-sabreauto.dtb; fi; " \
 				"if test $board_name = SABREAUTO && test $board_rev = MX6DL; then " \
 					"setenv fdt_file imx6dl-sabreauto.dtb; fi; " \
+				"if test $board_name = SABRESD && test $board_rev = MX6QP; then " \
+					"setenv fdt_file imx6qp-sabresd.dtb; fi; " \
 				"if test $board_name = SABRESD && test $board_rev = MX6Q; then " \
 					"setenv fdt_file imx6q-sabresd.dtb; fi; " \
 				"if test $board_name = SABRESD && test $board_rev = MX6DL; then " \
-- 
1.8.4