driver/ddr/fsl: Add general MMDC driver and reuse common MMDC driver for ls1012a

This general MMDC driver adds basic support for Freescale MMDC
(Multi Mode DDR Controller). Currently MMDC is integrated on ARMv8
LS1012A SoC for DDR3L, there will be a update to this driver to
support more flexible configuration if new features (DDR4, multiple
controllers/chip selections, etc) are implimented in future.

Meantime, reuse common MMDC driver for LS1012ARDB/LS1012AQDS/
LS1012AFRDM.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

1 files changed, 0 insertions, 116 deletions

diff --git a/board/freescale/ls1012ardb/ls1012ardb.c b/board/freescale/ls1012ardb/ls1012ardb.c
index 6598ab3..50f9187 100644
--- a/board/freescale/ls1012ardb/ls1012ardb.c
+++ b/board/freescale/ls1012ardb/ls1012ardb.c
@@ -21,20 +21,6 @@
 
 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;
@@ -70,108 +56,6 @@ int checkboard(void)
 	return 0;
 }
 
-void mmdc_init(void)
-{
-	struct mmdc_p_regs *mmdc =
-		(struct mmdc_p_regs *)CONFIG_SYS_FSL_DDR_ADDR;
-
-	out_be32(&mmdc->mdscr, CONFIGURATION_REQ);
-
-	/* configure timing parms */
-	out_be32(&mmdc->mdotc,  CONFIG_SYS_MMDC_CORE_ODT_TIMING);
-	out_be32(&mmdc->mdcfg0, CONFIG_SYS_MMDC_CORE_TIMING_CFG_0);
-	out_be32(&mmdc->mdcfg1, CONFIG_SYS_MMDC_CORE_TIMING_CFG_1);
-	out_be32(&mmdc->mdcfg2, CONFIG_SYS_MMDC_CORE_TIMING_CFG_2);
-
-	/* other parms	*/
-	out_be32(&mmdc->mdmisc,    CONFIG_SYS_MMDC_CORE_MISC);
-	out_be32(&mmdc->mpmur0,    CONFIG_SYS_MMDC_PHY_MEASURE_UNIT);
-	out_be32(&mmdc->mdrwd,     CONFIG_SYS_MMDC_CORE_RDWR_CMD_DELAY);
-	out_be32(&mmdc->mpodtctrl, CONFIG_SYS_MMDC_PHY_ODT_CTRL);
-
-	/* out of reset delays */
-	out_be32(&mmdc->mdor,  CONFIG_SYS_MMDC_CORE_OUT_OF_RESET_DELAY);
-
-	/* physical parms */
-	out_be32(&mmdc->mdctl, CONFIG_SYS_MMDC_CORE_CONTROL_1);
-	out_be32(&mmdc->mdasp, CONFIG_SYS_MMDC_CORE_ADDR_PARTITION);
-
-       /* Enable MMDC */
-	out_be32(&mmdc->mdctl, CONFIG_SYS_MMDC_CORE_CONTROL_2);
-
-	/* dram init sequence: update MRs */
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x8) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_2));
-	out_be32(&mmdc->mdscr, (CONFIGURATION_REQ | CMD_LOAD_MODE_REG |
-				CMD_BANK_ADDR_3));
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x4) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_1));
-	out_be32(&mmdc->mdscr, (CMD_ADDR_MSB_MR_OP(0x19) |
-				CMD_ADDR_LSB_MR_ADDR(0x30) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_0));
-
-       /* dram init sequence: ZQCL */
-	out_be32(&mmdc->mdscr, (CMD_ADDR_MSB_MR_OP(0x4) | CONFIGURATION_REQ |
-				CMD_ZQ_CALIBRATION | CMD_BANK_ADDR_0));
-	set_wait_for_bits_clear(&mmdc->mpzqhwctrl,
-				CONFIG_SYS_MMDC_PHY_ZQ_HW_CTRL,
-				FORCE_ZQ_AUTO_CALIBRATION);
-
-       /* Calibrations now: wr lvl */
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x84) |
-				CONFIGURATION_REQ | CMD_LOAD_MODE_REG |
-				CMD_BANK_ADDR_1));
-	out_be32(&mmdc->mdscr, (CONFIGURATION_REQ | WL_EN | CMD_NORMAL));
-	set_wait_for_bits_clear(&mmdc->mpwlgcr, WR_LVL_HW_EN, WR_LVL_HW_EN);
-
-	mdelay(1);
-
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x4) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_1));
-	out_be32(&mmdc->mdscr, CONFIGURATION_REQ);
-
-	mdelay(1);
-
-       /* Calibrations now: Read DQS gating calibration */
-	out_be32(&mmdc->mdscr, (CMD_ADDR_MSB_MR_OP(0x4) | CONFIGURATION_REQ |
-				CMD_PRECHARGE_BANK_OPEN | CMD_BANK_ADDR_0));
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x4) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_3));
-	out_be32(&mmdc->mppdcmpr2, MPR_COMPARE_EN);
-	out_be32(&mmdc->mprddlctl, CONFIG_SYS_MMDC_PHY_RD_DLY_LINES_CFG);
-	set_wait_for_bits_clear(&mmdc->mpdgctrl0,
-				AUTO_RD_DQS_GATING_CALIBRATION_EN,
-				AUTO_RD_DQS_GATING_CALIBRATION_EN);
-
-	out_be32(&mmdc->mdscr, (CONFIGURATION_REQ | CMD_LOAD_MODE_REG |
-				CMD_BANK_ADDR_3));
-
-       /* Calibrations now: Read calibration */
-	out_be32(&mmdc->mdscr, (CMD_ADDR_MSB_MR_OP(0x4) | CONFIGURATION_REQ |
-				CMD_PRECHARGE_BANK_OPEN | CMD_BANK_ADDR_0));
-	out_be32(&mmdc->mdscr, (CMD_ADDR_LSB_MR_ADDR(0x4) | CONFIGURATION_REQ |
-				CMD_LOAD_MODE_REG | CMD_BANK_ADDR_3));
-	out_be32(&mmdc->mppdcmpr2,  MPR_COMPARE_EN);
-	set_wait_for_bits_clear(&mmdc->mprddlhwctl,
-				AUTO_RD_CALIBRATION_EN,
-				AUTO_RD_CALIBRATION_EN);
-
-	out_be32(&mmdc->mdscr, (CONFIGURATION_REQ | CMD_LOAD_MODE_REG |
-				CMD_BANK_ADDR_3));
-
-       /* PD, SR */
-	out_be32(&mmdc->mdpdc, CONFIG_SYS_MMDC_CORE_PWR_DOWN_CTRL);
-	out_be32(&mmdc->mapsr, CONFIG_SYS_MMDC_CORE_PWR_SAV_CTRL_STAT);
-
-       /* refresh scheme */
-	set_wait_for_bits_clear(&mmdc->mdref,
-				CONFIG_SYS_MMDC_CORE_REFRESH_CTL,
-				START_REFRESH);
-
-       /* disable CON_REQ */
-	out_be32(&mmdc->mdscr, DISABLE_CFG_REQ);
-}
-
 int dram_init(void)
 {
 	mmdc_init();