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openwrtv4/package/boot/uboot-layerscape/patches/0020-armv8-ls1012a-Update-DDR-init-sequence.patch

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layerscape: add 64b/32b target for ls1012ardb device The QorIQ LS1012A processor, optimized for battery-backed or USB-powered, integrates a single ARM Cortex-A53 core with a hardware packet forwarding engine and high-speed interfaces to deliver line-rate networking performance. QorIQ LS1012A Reference Design System (LS1012ARDB) is a high-performance development platform, with a complete debugging environment. The LS1012ARDB board supports the QorIQ LS1012A processor and is optimized to support the high-bandwidth DDR3L memory and a full complement of high-speed SerDes ports. LEDE/OPENWRT will auto strip executable program file while make. So we need select CONFIG_NO_STRIP=y while make menuconfig to avoid the ppfe network fiemware be destroyed, then run make to build ls1012ardb firmware. The fsl-quadspi flash with jffs2 fs is unstable and arise some failed message. This issue have noticed the IP owner for investigate, hope he can solve it earlier. So the ls1012ardb now also provide a xx-firmware.ext4.bin as default firmware, and the uboot bootcmd will run wrtboot_ext4rfs for "rootfstype=ext4" bootargs. Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
2016-10-28 16:18:23 +00:00
From e8703a5bba4bc0e9fa6aefe0eae7caf9141b8bdc Mon Sep 17 00:00:00 2001
From: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Date: Mon, 2 May 2016 18:28:16 +0530
Subject: [PATCH 20/93] armv8: ls1012a: Update DDR init sequence
Current DDR init code uses lots of delay.
Use wait for bit clear instead of delays.
Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
---
board/freescale/ls1012aqds/ls1012aqds.c | 67 +++++++++++++++++--------------
board/freescale/ls1012ardb/ls1012ardb.c | 54 +++++++++++--------------
2 files changed, 60 insertions(+), 61 deletions(-)
diff --git a/board/freescale/ls1012aqds/ls1012aqds.c b/board/freescale/ls1012aqds/ls1012aqds.c
index 6d5fef8..5cb225f 100644
--- a/board/freescale/ls1012aqds/ls1012aqds.c
+++ b/board/freescale/ls1012aqds/ls1012aqds.c
@@ -28,6 +28,20 @@
DECLARE_GLOBAL_DATA_PTR;
+static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits)
+{
+ int timeout = 1000;
+
+ out_be32(ptr, value);
+
+ while (in_be32(ptr) & bits) {
+ udelay(100);
+ timeout--;
+ }
+ if (timeout <= 0)
+ puts("Error: wait for clear timeout.\n");
+}
+
int checkboard(void)
{
puts("Board: LS1012AQDS\n");
@@ -44,7 +58,7 @@ void mmdc_init(void)
out_be32(&mmdc->mdscr, 0x00008000);
/* configure timing parms */
- out_be32(&mmdc->mdotc, 0x12554000);
+ out_be32(&mmdc->mdotc, 0x12554000);
out_be32(&mmdc->mdcfg0, 0xbabf7954);
out_be32(&mmdc->mdcfg1, 0xff328f64);
out_be32(&mmdc->mdcfg2, 0x01ff00db);
@@ -56,7 +70,7 @@ void mmdc_init(void)
out_be32(&mmdc->mpodtctrl, 0x0000022a);
/* out of reset delays */
- out_be32(&mmdc->mdor, 0x00bf1023);
+ out_be32(&mmdc->mdor, 0x00bf1023);
/* physical parms */
out_be32(&mmdc->mdctl, 0x05180000);
@@ -73,69 +87,60 @@ void mmdc_init(void)
/* dram init sequence: ZQCL */
out_be32(&mmdc->mdscr, 0x04008040);
- out_be32(&mmdc->mpzqhwctrl, 0xa1390003);
-
- mdelay(100);
+ set_wait_for_bits_clear(&mmdc->mpzqhwctrl, 0xa1390003, 0x00010000);
/* Calibrations now: wr lvl */
out_be32(&mmdc->mdscr, 0x00848031);
out_be32(&mmdc->mdscr, 0x00008200);
- out_be32(&mmdc->mpwlgcr, 0x00000001);
+ set_wait_for_bits_clear(&mmdc->mpwlgcr, 0x00000001, 0x00000001);
- mdelay(100);
+ mdelay(1);
out_be32(&mmdc->mdscr, 0x00048031);
out_be32(&mmdc->mdscr, 0x00008000);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
+ mdelay(1);
/* Calibrations now: Read DQS gating calibration */
out_be32(&mmdc->mdscr, 0x04008050);
out_be32(&mmdc->mdscr, 0x00048033);
out_be32(&mmdc->mppdcmpr2, 0x00000001);
out_be32(&mmdc->mprddlctl, 0x40404040);
- out_be32(&mmdc->mpdgctrl0, 0x10000000);
-
- mdelay(100);
+ set_wait_for_bits_clear(&mmdc->mpdgctrl0, 0x10000000, 0x10000000);
out_be32(&mmdc->mdscr, 0x00008033);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
/* Calibrations now: Read calibration */
out_be32(&mmdc->mdscr, 0x04008050);
out_be32(&mmdc->mdscr, 0x00048033);
out_be32(&mmdc->mppdcmpr2, 0x00000001);
- out_be32(&mmdc->mprddlhwctl, 0x00000010);
-
- mdelay(400);
+ set_wait_for_bits_clear(&mmdc->mprddlhwctl, 0x00000010, 0x00000010);
out_be32(&mmdc->mdscr, 0x00008033);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
-
/* PD, SR */
out_be32(&mmdc->mdpdc, 0x00030035);
out_be32(&mmdc->mapsr, 0x00001067);
/* refresh scheme */
- out_be32(&mmdc->mdref, 0x103e8000);
-
- mdelay(400);
+ set_wait_for_bits_clear(&mmdc->mdref, 0x103e8000, 0x00000001);
/* disable CON_REQ */
out_be32(&mmdc->mdscr, 0x0);
+}
- mdelay(50);
+int select_i2c_ch_pca9547(u8 ch)
+{
+ int ret;
+
+ ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
+ if (ret) {
+ puts("PCA: failed to select proper channel\n");
+ return ret;
+ }
+
+ return 0;
}
int dram_init(void)
@@ -183,6 +188,8 @@ int board_init(void)
#ifdef CONFIG_ENV_IS_NOWHERE
gd->env_addr = (ulong)&default_environment[0];
#endif
+ select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+
return 0;
}
diff --git a/board/freescale/ls1012ardb/ls1012ardb.c b/board/freescale/ls1012ardb/ls1012ardb.c
index 4a7aaaa..f7b9bce 100644
--- a/board/freescale/ls1012ardb/ls1012ardb.c
+++ b/board/freescale/ls1012ardb/ls1012ardb.c
@@ -23,6 +23,20 @@
DECLARE_GLOBAL_DATA_PTR;
+static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits)
+{
+ int timeout = 1000;
+
+ out_be32(ptr, value);
+
+ while (in_be32(ptr) & bits) {
+ udelay(100);
+ timeout--;
+ }
+ if (timeout <= 0)
+ puts("Error: wait for clear timeout.\n");
+}
+
int checkboard(void)
{
u8 in1;
@@ -67,7 +81,7 @@ void mmdc_init(void)
out_be32(&mmdc->mdscr, 0x00008000);
/* configure timing parms */
- out_be32(&mmdc->mdotc, 0x12554000);
+ out_be32(&mmdc->mdotc, 0x12554000);
out_be32(&mmdc->mdcfg0, 0xbabf7954);
out_be32(&mmdc->mdcfg1, 0xff328f64);
out_be32(&mmdc->mdcfg2, 0x01ff00db);
@@ -79,7 +93,7 @@ void mmdc_init(void)
out_be32(&mmdc->mpodtctrl, 0x0000022a);
/* out of reset delays */
- out_be32(&mmdc->mdor, 0x00bf1023);
+ out_be32(&mmdc->mdor, 0x00bf1023);
/* physical parms */
out_be32(&mmdc->mdctl, 0x05180000);
@@ -96,69 +110,47 @@ void mmdc_init(void)
/* dram init sequence: ZQCL */
out_be32(&mmdc->mdscr, 0x04008040);
- out_be32(&mmdc->mpzqhwctrl, 0xa1390003);
-
- mdelay(100);
+ set_wait_for_bits_clear(&mmdc->mpzqhwctrl, 0xa1390003, 0x00010000);
/* Calibrations now: wr lvl */
out_be32(&mmdc->mdscr, 0x00848031);
out_be32(&mmdc->mdscr, 0x00008200);
- out_be32(&mmdc->mpwlgcr, 0x00000001);
+ set_wait_for_bits_clear(&mmdc->mpwlgcr, 0x00000001, 0x00000001);
- mdelay(100);
+ mdelay(1);
out_be32(&mmdc->mdscr, 0x00048031);
out_be32(&mmdc->mdscr, 0x00008000);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
+ mdelay(1);
/* Calibrations now: Read DQS gating calibration */
out_be32(&mmdc->mdscr, 0x04008050);
out_be32(&mmdc->mdscr, 0x00048033);
out_be32(&mmdc->mppdcmpr2, 0x00000001);
out_be32(&mmdc->mprddlctl, 0x40404040);
- out_be32(&mmdc->mpdgctrl0, 0x10000000);
-
- mdelay(100);
+ set_wait_for_bits_clear(&mmdc->mpdgctrl0, 0x10000000, 0x10000000);
out_be32(&mmdc->mdscr, 0x00008033);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
/* Calibrations now: Read calibration */
out_be32(&mmdc->mdscr, 0x04008050);
out_be32(&mmdc->mdscr, 0x00048033);
out_be32(&mmdc->mppdcmpr2, 0x00000001);
- out_be32(&mmdc->mprddlhwctl, 0x00000010);
-
- mdelay(400);
+ set_wait_for_bits_clear(&mmdc->mprddlhwctl, 0x00000010, 0x00000010);
out_be32(&mmdc->mdscr, 0x00008033);
- /* manual_refresh */
- out_be32(&mmdc->mdscr, 0x00008020);
-
- mdelay(100);
-
/* PD, SR */
out_be32(&mmdc->mdpdc, 0x00030035);
out_be32(&mmdc->mapsr, 0x00001067);
/* refresh scheme */
- out_be32(&mmdc->mdref, 0x103e8000);
-
- mdelay(400);
+ set_wait_for_bits_clear(&mmdc->mdref, 0x103e8000, 0x00000001);
/* disable CON_REQ */
out_be32(&mmdc->mdscr, 0x0);
-
- mdelay(50);
}
int dram_init(void)
--
1.7.9.5
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