The tqmls1046a also has a 8GiB DDR variant. This patch adds support for
this variant as an additional image with suffix _8g in the name.
The 8GiB boards use two different types of DDR chips which can be
distinguished by reading the EEPROM. There is one regular version which
has the string "TQMLS1046A-P2.0201" is the EEPROM. The other one is
possibly only used for Arkona and has the string "TQMLS1046A-CA.0202"
in the EEPROM. There might be other possible strings we are currently
not aware of, we fall back to the P2 variant in this case.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
arch/arm/boards/tqmls1046a/board.c | 32 ++++-
arch/arm/boards/tqmls1046a/lowlevel.c | 237 +++++++++++++++++++++++++++++++++-
arch/arm/boards/tqmls1046a/start.S | 5 +
images/Makefile.layerscape | 14 +-
include/mach/layerscape/layerscape.h | 1 +
5 files changed, 277 insertions(+), 12 deletions(-)
diff --git a/arch/arm/boards/tqmls1046a/board.c b/arch/arm/boards/tqmls1046a/board.c
index 36bcae6bc0..df49d0f780 100644
--- a/arch/arm/boards/tqmls1046a/board.c
+++ b/arch/arm/boards/tqmls1046a/board.c
@@ -13,22 +13,38 @@
#include <mach/layerscape/bbu.h>
#include <mach/layerscape/layerscape.h>
-static int tqmls1046a_mem_init(void)
+static void ls1046a_add_memory(void)
{
+ u32 cs0_bnds;
+ unsigned long long memsize, lower, upper;
int ret;
- if (!of_machine_is_compatible("tq,ls1046a-tqmls1046a"))
- return 0;
+ cs0_bnds = in_be32(LS1046A_DDRC_BASE);
+ switch (cs0_bnds) {
+ case 0x1ff:
+ memsize = SZ_8G;
+ break;
+ case 0x7f:
+ memsize = SZ_2G;
+ break;
+ default:
+ pr_err("Unexpected cs0_bnds: 0x%08x\n", cs0_bnds);
+ memsize = SZ_2G;
+ break;
+ }
+
+ lower = min_t(unsigned long long, memsize, SZ_2G);
+ arm_add_mem_device("ram0", 0x80000000, lower);
- arm_add_mem_device("ram0", 0x80000000, SZ_2G);
+ if (memsize > lower) {
+ upper = memsize - lower;
+ arm_add_mem_device("ram1", 0x880000000, upper);
+ }
ret = ls1046a_ppa_init(0x100000000 - SZ_64M, SZ_64M);
if (ret)
pr_err("Failed to initialize PPA firmware: %s\n", strerror(-ret));
-
- return 0;
}
-mem_initcall(tqmls1046a_mem_init);
static int tqmls1046a_postcore_init(void)
{
@@ -39,6 +55,8 @@ static int tqmls1046a_postcore_init(void)
if (!of_machine_is_compatible("tq,ls1046a-tqmls1046a"))
return 0;
+ ls1046a_add_memory();
+
defaultenv_append_directory(defaultenv_tqmls1046a);
/* Configure iomux for i2c4 */
diff --git a/arch/arm/boards/tqmls1046a/lowlevel.c b/arch/arm/boards/tqmls1046a/lowlevel.c
index 6d25b5cda8..9f471d001e 100644
--- a/arch/arm/boards/tqmls1046a/lowlevel.c
+++ b/arch/arm/boards/tqmls1046a/lowlevel.c
@@ -13,7 +13,7 @@
#include <mach/layerscape/xload.h>
#include <mach/layerscape/layerscape.h>
-static struct fsl_ddr_controller ddrc[] = {
+static struct fsl_ddr_controller tqmls1046a_ddrc[] = {
{
.memctl_opts.ddrtype = SDRAM_TYPE_DDR4,
.base = IOMEM(LSCH2_DDR_ADDR),
@@ -90,11 +90,222 @@ static struct fsl_ddr_controller ddrc[] = {
},
};
+static struct fsl_ddr_controller tqmls1046a_ddrc_8g[] = {
+ {
+ .memctl_opts.ddrtype = SDRAM_TYPE_DDR4,
+ .base = IOMEM(LSCH2_DDR_ADDR),
+ .ddr_freq = LS1046A_DDR_FREQ,
+ .erratum_A008511 = 1,
+ .erratum_A009803 = 1,
+ .erratum_A010165 = 1,
+ .erratum_A009801 = 1,
+ .erratum_A009942 = 1,
+ .chip_selects_per_ctrl = 4,
+ .fsl_ddr_config_reg = {
+ .cs[0].bnds = 0x000001FF,
+ .cs[0].config = 0x80010422,
+ .cs[0].config_2 = 0x00000000,
+ .cs[1].bnds = 0x00000000,
+ .cs[1].config = 0x00000000,
+ .cs[1].config_2 = 0x00000000,
+ .cs[2].bnds = 0x00000000,
+ .cs[2].config = 0x00000000,
+ .cs[2].config_2 = 0x00000000,
+ .cs[3].bnds = 0x00000000,
+ .cs[3].config = 0x00000000,
+ .cs[3].config_2 = 0x00000000,
+ .timing_cfg_3 = 0x020F1100,
+ .timing_cfg_0 = 0xF7660008,
+ .timing_cfg_1 = 0xF1FCC178,
+ .timing_cfg_2 = 0x00590160,
+ .ddr_sdram_cfg = 0x65000008,
+ .ddr_sdram_cfg_2 = 0x00401150,
+ .ddr_sdram_cfg_3 = 0x40000000,
+ .ddr_sdram_mode = 0x01030631,
+ .ddr_sdram_mode_2 = 0x00100200,
+ .ddr_sdram_mode_3 = 0x00000000,
+ .ddr_sdram_mode_4 = 0x00000000,
+ .ddr_sdram_mode_5 = 0x00000000,
+ .ddr_sdram_mode_6 = 0x00000000,
+ .ddr_sdram_mode_7 = 0x00000000,
+ .ddr_sdram_mode_8 = 0x00000000,
+ .ddr_sdram_mode_9 = 0x00000500,
+ .ddr_sdram_mode_10 = 0x08800000,
+ .ddr_sdram_mode_11 = 0x00000000,
+ .ddr_sdram_mode_12 = 0x00000000,
+ .ddr_sdram_mode_13 = 0x00000000,
+ .ddr_sdram_mode_14 = 0x00000000,
+ .ddr_sdram_mode_15 = 0x00000000,
+ .ddr_sdram_mode_16 = 0x00000000,
+ .ddr_sdram_interval = 0x0F3C079E,
+ .ddr_data_init = 0xDEADBEEF,
+ .ddr_sdram_clk_cntl = 0x03000000,
+ .ddr_init_addr = 0x00000000,
+ .ddr_init_ext_addr = 0x00000000,
+ .timing_cfg_4 = 0x00220002,
+ .timing_cfg_5 = 0x00000000,
+ .timing_cfg_6 = 0x00000000,
+ .timing_cfg_7 = 0x25500000,
+ .timing_cfg_8 = 0x05447A00,
+ .timing_cfg_9 = 0x00000000,
+ .ddr_zq_cntl = 0x8A090705,
+ .ddr_wrlvl_cntl = 0x8605070A,
+ .ddr_wrlvl_cntl_2 = 0x0A080807,
+ .ddr_wrlvl_cntl_3 = 0x0706060A,
+ .ddr_sr_cntr = 0x00000000,
+ .ddr_sdram_rcw_1 = 0x00000000,
+ .ddr_sdram_rcw_2 = 0x00000000,
+ .ddr_sdram_rcw_3 = 0x00000000,
+ .ddr_cdr1 = 0x80080000,
+ .ddr_cdr2 = 0x000000C0,
+ .dq_map_0 = 0x00000000,
+ .dq_map_1 = 0x00000000,
+ .dq_map_2 = 0x00000000,
+ .dq_map_3 = 0x00000000,
+ .debug[28] = 0x00700046,
+ },
+ },
+};
+
+static struct fsl_ddr_controller tqmls1046a_ddrc_8g_ca[] = {
+ {
+ .memctl_opts.ddrtype = SDRAM_TYPE_DDR4,
+ .base = IOMEM(LSCH2_DDR_ADDR),
+ .ddr_freq = LS1046A_DDR_FREQ,
+ .erratum_A008511 = 1,
+ .erratum_A009803 = 1,
+ .erratum_A010165 = 1,
+ .erratum_A009801 = 1,
+ .erratum_A009942 = 1,
+ .chip_selects_per_ctrl = 4,
+ .fsl_ddr_config_reg = {
+ .cs[0].bnds = 0x000001FF,
+ .cs[0].config = 0x80010422,
+ .cs[0].config = 0x80010512,
+ .cs[0].config_2 = 0x00000000,
+ .cs[1].bnds = 0x00000000,
+ .cs[1].config = 0x00000000,
+ .cs[1].config_2 = 0x00000000,
+ .cs[2].bnds = 0x00000000,
+ .cs[2].config = 0x00000000,
+ .cs[2].config_2 = 0x00000000,
+ .cs[3].bnds = 0x00000000,
+ .cs[3].config = 0x00000000,
+ .cs[3].config_2 = 0x00000000,
+ .timing_cfg_3 = 0x12551100,
+ .timing_cfg_0 = 0xA0660008,
+ .timing_cfg_1 = 0x060E6278,
+ .timing_cfg_2 = 0x0058625E,
+ .ddr_sdram_cfg = 0x65200008,
+ .ddr_sdram_cfg_2 = 0x00401070,
+ .ddr_sdram_cfg_3 = 0x40000000,
+ .ddr_sdram_mode = 0x05030635,
+ .ddr_sdram_mode_2 = 0x00100000,
+ .ddr_sdram_mode_3 = 0x00000000,
+ .ddr_sdram_mode_4 = 0x00000000,
+ .ddr_sdram_mode_5 = 0x00000000,
+ .ddr_sdram_mode_6 = 0x00000000,
+ .ddr_sdram_mode_7 = 0x00000000,
+ .ddr_sdram_mode_8 = 0x00000000,
+ .ddr_sdram_mode_9 = 0x00000701,
+ .ddr_sdram_mode_10 = 0x08800000,
+ .ddr_sdram_mode_11 = 0x00000000,
+ .ddr_sdram_mode_12 = 0x00000000,
+ .ddr_sdram_mode_13 = 0x00000000,
+ .ddr_sdram_mode_14 = 0x00000000,
+ .ddr_sdram_mode_15 = 0x00000000,
+ .ddr_sdram_mode_16 = 0x00000000,
+ .ddr_sdram_interval = 0x0F3C079E,
+ .ddr_data_init = 0xDEADBEEF,
+ .ddr_sdram_clk_cntl = 0x02400000,
+ .ddr_init_addr = 0x00000000,
+ .ddr_init_ext_addr = 0x00000000,
+ .timing_cfg_4 = 0x00224502,
+ .timing_cfg_5 = 0x06401400,
+ .timing_cfg_6 = 0x00000000,
+ .timing_cfg_7 = 0x25540000,
+ .timing_cfg_8 = 0x06445A00,
+ .timing_cfg_9 = 0x00000000,
+ .ddr_zq_cntl = 0x8A090705,
+ .ddr_wrlvl_cntl = 0x86750608,
+ .ddr_wrlvl_cntl_2 = 0x07070605,
+ .ddr_wrlvl_cntl_3 = 0x05040407,
+ .ddr_sr_cntr = 0x00000000,
+ .ddr_sdram_rcw_1 = 0x00000000,
+ .ddr_sdram_rcw_2 = 0x00000000,
+ .ddr_sdram_rcw_3 = 0x00000000,
+ .ddr_cdr1 = 0x80080000,
+ .ddr_cdr2 = 0x00000080,
+ .dq_map_0 = 0x06106104,
+ .dq_map_1 = 0x84184184,
+ .dq_map_2 = 0x06106104,
+ .dq_map_3 = 0x84184000,
+ .debug[28] = 0x00700046,
+ },
+ },
+};
+
+#define TQ_VARIANT_LEN 18
+#define TQ_VARIANT_TQMLS1046A_P2 0
+#define TQ_VARIANT_TQMLS1046A_CA 1
+
+static int tqmls1046a_get_variant(void)
+{
+ struct pbl_i2c *i2c;
+ unsigned char buf[TQ_VARIANT_LEN + 1] = { 0 };
+ uint8_t pos = 0x40;
+ int ret;
+ int variant = TQ_VARIANT_TQMLS1046A_P2;
+ struct i2c_msg msg[] = {
+ {
+ .addr = 0x50,
+ .len = 1,
+ .buf = &pos,
+ }, {
+ .addr = 0x50,
+ .len = TQ_VARIANT_LEN,
+ .flags = I2C_M_RD,
+ .buf = (void *)&buf,
+ }
+ };
+
+ i2c = ls1046_i2c_init(IOMEM(LSCH2_I2C1_BASE_ADDR));
+
+ ret = pbl_i2c_xfer(i2c, msg, ARRAY_SIZE(msg));
+ if (ret != ARRAY_SIZE(msg)) {
+ pr_err("I2C EEPROM read failed: %d\n", ret);
+ goto out;
+ }
+
+ if (buf[0] == 0xff) {
+ pr_err("Erased EEPROM detected\n");
+ goto out;
+ }
+
+ pr_debug("Board Variant: %s\n", buf);
+
+ if (!strcmp(buf, "TQMLS1046A-CA.0202")) {
+ variant = TQ_VARIANT_TQMLS1046A_CA;
+ goto out;
+ }
+
+ if (!strcmp(buf, "TQMLS1046A-P2.0201")) {
+ variant = TQ_VARIANT_TQMLS1046A_P2;
+ goto out;
+ }
+
+ pr_err("Unknown board variant, using default\n");
+
+out:
+ return variant;
+}
+
extern char __dtb_z_fsl_ls1046a_tqmls1046a_mbls10xxa_start[];
-static noinline __noreturn void tqmls1046a_r_entry(void)
+static noinline __noreturn void tqmls1046a_r_entry(bool is_8g)
{
unsigned long membase = LS1046A_DDR_SDRAM_BASE;
+ int board_variant = 0;
if (get_pc() >= membase)
barebox_arm_entry(membase, 0x80000000 - SZ_64M,
@@ -108,7 +319,15 @@ static noinline __noreturn void tqmls1046a_r_entry(void)
udelay(500);
putc_ll('>');
- fsl_ddr_set_memctl_regs(&ddrc[0], 0, false);
+ if (is_8g) {
+ board_variant = tqmls1046a_get_variant();
+ if (board_variant == TQ_VARIANT_TQMLS1046A_CA)
+ fsl_ddr_set_memctl_regs(&tqmls1046a_ddrc_8g_ca[0], 0, false);
+ else
+ fsl_ddr_set_memctl_regs(&tqmls1046a_ddrc_8g[0], 0, false);
+ } else {
+ fsl_ddr_set_memctl_regs(&tqmls1046a_ddrc[0], 0, false);
+ }
ls1046a_errata_post_ddr();
@@ -126,5 +345,15 @@ __noreturn void tqmls1046a_entry(unsigned long r0, unsigned long r1, unsigned lo
relocate_to_current_adr();
setup_c();
- tqmls1046a_r_entry();
+ tqmls1046a_r_entry(false);
+}
+
+void tqmls1046a_8g_entry(unsigned long r0, unsigned long r1, unsigned long r2);
+
+__noreturn void tqmls1046a_8g_entry(unsigned long r0, unsigned long r1, unsigned long r2)
+{
+ relocate_to_current_adr();
+ setup_c();
+
+ tqmls1046a_r_entry(true);
}
diff --git a/arch/arm/boards/tqmls1046a/start.S b/arch/arm/boards/tqmls1046a/start.S
index 12b785af54..84c4626880 100644
--- a/arch/arm/boards/tqmls1046a/start.S
+++ b/arch/arm/boards/tqmls1046a/start.S
@@ -10,3 +10,8 @@ ENTRY_PROC(start_tqmls1046a)
b tqmls1046a_entry
ENTRY_PROC_END(start_tqmls1046a)
+ENTRY_PROC(start_tqmls1046a_8g)
+ mov x3, #STACK_TOP
+ mov sp, x3
+ b tqmls1046a_8g_entry
+ENTRY_PROC_END(start_tqmls1046a_8g)
diff --git a/images/Makefile.layerscape b/images/Makefile.layerscape
index 9cb88270d7..cfbe4ca35b 100644
--- a/images/Makefile.layerscape
+++ b/images/Makefile.layerscape
@@ -62,8 +62,20 @@ $(obj)/barebox-tqmls1046a-qspi.image: $(obj)/start_tqmls1046a.pblb \
$(board)/tqmls1046a/tqmls1046a_pbi.cfg
$(call if_changed,lspbl_spi_image,ls1046a)
+$(obj)/barebox-tqmls1046a-8g-sd.image: $(obj)/start_tqmls1046a_8g.pblb \
+ $(board)/tqmls1046a/tqmls1046a_rcw_sd_3333_5559.cfg \
+ $(board)/tqmls1046a/tqmls1046a_pbi.cfg
+ $(call if_changed,lspbl_image,ls1046a)
+
+$(obj)/barebox-tqmls1046a-8g-qspi.image: $(obj)/start_tqmls1046a_8g.pblb \
+ $(board)/tqmls1046a/tqmls1046a_rcw_qspi_3333_5559.cfg \
+ $(board)/tqmls1046a/tqmls1046a_pbi.cfg
+ $(call if_changed,lspbl_spi_image,ls1046a)
+
image-$(CONFIG_MACH_TQMLS1046A) += barebox-tqmls1046a-sd.image \
- barebox-tqmls1046a-qspi.image
+ barebox-tqmls1046a-qspi.image \
+ barebox-tqmls1046a-8g-sd.image \
+ barebox-tqmls1046a-8g-qspi.image
pbl-$(CONFIG_MACH_LS1021AIOT) += start_ls1021aiot.pbl
diff --git a/include/mach/layerscape/layerscape.h b/include/mach/layerscape/layerscape.h
index bf4a751b92..7f9dc7d8a1 100644
--- a/include/mach/layerscape/layerscape.h
+++ b/include/mach/layerscape/layerscape.h
@@ -7,6 +7,7 @@
#define LS1046A_DDR_SDRAM_BASE 0x80000000
#define LS1046A_DDR_FREQ 2100000000
+#define LS1046A_DDRC_BASE 0x01080000
#define LS1021A_DDR_SDRAM_BASE 0x80000000
#define LS1021A_DDR_FREQ 1600000000
--
2.39.5
