2 * Copyright 2014-2015 Freescale Semiconductor
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/soc.h>
11 #include <asm/global_data.h>
12 #include <asm/arch-fsl-layerscape/config.h>
14 DECLARE_GLOBAL_DATA_PTR;
16 #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A)
18 * This erratum requires setting a value to eddrtqcr1 to
19 * optimal the DDR performance.
21 static void erratum_a008336(void)
25 #ifdef CONFIG_SYS_FSL_ERRATUM_A008336
26 #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR
27 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800;
28 out_le32(eddrtqcr1, 0x63b30002);
30 #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR
31 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800;
32 out_le32(eddrtqcr1, 0x63b30002);
38 * This erratum requires a register write before being Memory
39 * controller 3 being enabled.
41 static void erratum_a008514(void)
45 #ifdef CONFIG_SYS_FSL_ERRATUM_A008514
46 #ifdef CONFIG_SYS_FSL_DCSR_DDR3_ADDR
47 eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800;
48 out_le32(eddrtqcr1, 0x63b20002);
52 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
53 #define PLATFORM_CYCLE_ENV_VAR "a009635_interval_val"
55 static unsigned long get_internval_val_mhz(void)
57 char *interval = getenv(PLATFORM_CYCLE_ENV_VAR);
59 * interval is the number of platform cycles(MHz) between
60 * wake up events generated by EPU.
62 ulong interval_mhz = get_bus_freq(0) / (1000 * 1000);
65 interval_mhz = simple_strtoul(interval, NULL, 10);
70 void erratum_a009635(void)
73 unsigned long interval_mhz = get_internval_val_mhz();
78 val = in_le32(DCSR_CGACRE5);
79 writel(val | 0x00000200, DCSR_CGACRE5);
81 val = in_le32(EPU_EPCMPR5);
82 writel(interval_mhz, EPU_EPCMPR5);
83 val = in_le32(EPU_EPCCR5);
84 writel(val | 0x82820000, EPU_EPCCR5);
85 val = in_le32(EPU_EPSMCR5);
86 writel(val | 0x002f0000, EPU_EPSMCR5);
87 val = in_le32(EPU_EPECR5);
88 writel(val | 0x20000000, EPU_EPECR5);
89 val = in_le32(EPU_EPGCR);
90 writel(val | 0x80000000, EPU_EPGCR);
92 #endif /* CONFIG_SYS_FSL_ERRATUM_A009635 */
94 static void erratum_a008751(void)
96 #ifdef CONFIG_SYS_FSL_ERRATUM_A008751
97 u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
99 writel(0x27672b2a, scfg + SCFG_USB3PRM1CR / 4);
103 static void erratum_rcw_src(void)
105 #if defined(CONFIG_SPL)
106 u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE;
107 u32 __iomem *dcfg_dcsr = (u32 __iomem *)DCFG_DCSR_BASE;
110 val = in_le32(dcfg_ccsr + DCFG_PORSR1 / 4);
111 val &= ~DCFG_PORSR1_RCW_SRC;
112 val |= DCFG_PORSR1_RCW_SRC_NOR;
113 out_le32(dcfg_dcsr + DCFG_DCSR_PORCR1 / 4, val);
117 #define I2C_DEBUG_REG 0x6
118 #define I2C_GLITCH_EN 0x8
120 * This erratum requires setting glitch_en bit to enable
121 * digital glitch filter to improve clock stability.
123 static void erratum_a009203(void)
126 #ifdef CONFIG_SYS_I2C
127 #ifdef I2C1_BASE_ADDR
128 ptr = (u8 __iomem *)(I2C1_BASE_ADDR + I2C_DEBUG_REG);
130 writeb(I2C_GLITCH_EN, ptr);
132 #ifdef I2C2_BASE_ADDR
133 ptr = (u8 __iomem *)(I2C2_BASE_ADDR + I2C_DEBUG_REG);
135 writeb(I2C_GLITCH_EN, ptr);
137 #ifdef I2C3_BASE_ADDR
138 ptr = (u8 __iomem *)(I2C3_BASE_ADDR + I2C_DEBUG_REG);
140 writeb(I2C_GLITCH_EN, ptr);
142 #ifdef I2C4_BASE_ADDR
143 ptr = (u8 __iomem *)(I2C4_BASE_ADDR + I2C_DEBUG_REG);
145 writeb(I2C_GLITCH_EN, ptr);
150 void fsl_lsch3_early_init_f(void)
154 init_early_memctl_regs(); /* tighten IFC timing */
160 #elif defined(CONFIG_LS1043A)
161 void fsl_lsch2_early_init_f(void)
163 struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
165 #ifdef CONFIG_FSL_IFC
166 init_early_memctl_regs(); /* tighten IFC timing */
170 * Enable snoop requests and DVM message requests for
171 * Slave insterface S4 (A53 core cluster)
173 out_le32(&cci->slave[4].snoop_ctrl,
174 CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
178 #ifdef CONFIG_BOARD_LATE_INIT
179 int board_late_init(void)