[U-Boot] [PATCH v3 3/5] mx6cuboxi: Introduce multi-SoC support
Fabio Estevam
festevam at gmail.com
Fri Apr 24 13:46:53 CEST 2015
From: Fabio Estevam <fabio.estevam at freescale.com>
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 at freescale.com>
---
Changes since v2:
- None
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
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