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armv8: layerscape: sata: refine port register configuration

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Sata registers PP2C and PP3C are used to control the configuration
of the PHY control OOB timing for the COMINIT/COMWAKE parameters
respectively. Calculate those parameters from port clock frequency.
Overwrite those registers with calculated values to get better OOB
timing.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Yuantian Tang 2017-12-11 13:12:09 +08:00 committed by York Sun
parent fa60abc6e6
commit 1b76f3b8ab
2 changed files with 8 additions and 0 deletions
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6
arch/arm/cpu/armv8/fsl-layerscape/soc.c
View File

@ -341,6 +341,8 @@ int sata_init(void)
#ifdef CONFIG_SYS_SATA2
ccsr_ahci = (void *)CONFIG_SYS_SATA2;
out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
#endif
@ -348,6 +350,8 @@ int sata_init(void)
#ifdef CONFIG_SYS_SATA1
ccsr_ahci = (void *)CONFIG_SYS_SATA1;
out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
@ -368,6 +372,8 @@ int sata_init(void)
/* Disable SATA ECC */
out_le32((void *)CONFIG_SYS_DCSR_DCFG_ADDR + 0x520, 0x80000000);
out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY2_CFG);
out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY3_CFG);
out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);

2
arch/arm/include/asm/arch-fsl-layerscape/soc.h
View File

@ -88,6 +88,8 @@ struct cpu_type {
/* ahci port register default value */
#define AHCI_PORT_PHY_1_CFG 0xa003fffe
#define AHCI_PORT_PHY2_CFG 0x28184d1f
#define AHCI_PORT_PHY3_CFG 0x0e081509
#define AHCI_PORT_TRANS_CFG 0x08000029
#define AHCI_PORT_AXICC_CFG 0x3fffffff