*
* (C) Copyright 2002
* Jun Gu, Artesyn Technology, jung@artesyncp.com
- * Support for IBM 440 based on OpenBIOS draminit.c from IBM.
+ * Support for AMCC 440 based on OpenBIOS draminit.c from IBM.
*
* (C) Copyright 2005
* Stefan Roese, DENX Software Engineering, sr@denx.de.
/*
* Set default values
*/
-#ifndef CFG_I2C_SPEED
-#define CFG_I2C_SPEED 50000
+#ifndef CFG_I2C_SPEED
+#define CFG_I2C_SPEED 50000
#endif
-#ifndef CFG_I2C_SLAVE
-#define CFG_I2C_SLAVE 0xFE
+#ifndef CFG_I2C_SLAVE
+#define CFG_I2C_SLAVE 0xFE
#endif
-#define ONE_BILLION 1000000000
+#define ONE_BILLION 1000000000
-#ifndef CONFIG_440 /* for 405 WALNUT/SYCAMORE/BUBINGA boards */
+#ifndef CONFIG_440 /* for 405 WALNUT/SYCAMORE/BUBINGA boards */
-#define SDRAM0_CFG_DCE 0x80000000
-#define SDRAM0_CFG_SRE 0x40000000
-#define SDRAM0_CFG_PME 0x20000000
-#define SDRAM0_CFG_MEMCHK 0x10000000
-#define SDRAM0_CFG_REGEN 0x08000000
-#define SDRAM0_CFG_ECCDD 0x00400000
-#define SDRAM0_CFG_EMDULR 0x00200000
-#define SDRAM0_CFG_DRW_SHIFT (31-6)
-#define SDRAM0_CFG_BRPF_SHIFT (31-8)
+#define SDRAM0_CFG_DCE 0x80000000
+#define SDRAM0_CFG_SRE 0x40000000
+#define SDRAM0_CFG_PME 0x20000000
+#define SDRAM0_CFG_MEMCHK 0x10000000
+#define SDRAM0_CFG_REGEN 0x08000000
+#define SDRAM0_CFG_ECCDD 0x00400000
+#define SDRAM0_CFG_EMDULR 0x00200000
+#define SDRAM0_CFG_DRW_SHIFT (31-6)
+#define SDRAM0_CFG_BRPF_SHIFT (31-8)
-#define SDRAM0_TR_CASL_SHIFT (31-8)
-#define SDRAM0_TR_PTA_SHIFT (31-13)
-#define SDRAM0_TR_CTP_SHIFT (31-15)
-#define SDRAM0_TR_LDF_SHIFT (31-17)
-#define SDRAM0_TR_RFTA_SHIFT (31-29)
-#define SDRAM0_TR_RCD_SHIFT (31-31)
+#define SDRAM0_TR_CASL_SHIFT (31-8)
+#define SDRAM0_TR_PTA_SHIFT (31-13)
+#define SDRAM0_TR_CTP_SHIFT (31-15)
+#define SDRAM0_TR_LDF_SHIFT (31-17)
+#define SDRAM0_TR_RFTA_SHIFT (31-29)
+#define SDRAM0_TR_RCD_SHIFT (31-31)
-#define SDRAM0_RTR_SHIFT (31-15)
-#define SDRAM0_ECCCFG_SHIFT (31-11)
+#define SDRAM0_RTR_SHIFT (31-15)
+#define SDRAM0_ECCCFG_SHIFT (31-11)
/* SDRAM0_CFG enable macro */
#define SDRAM0_CFG_BRPF(x) ( ( x & 0x3)<< SDRAM0_CFG_BRPF_SHIFT )
-#define SDRAM0_BXCR_SZ_MASK 0x000e0000
-#define SDRAM0_BXCR_AM_MASK 0x0000e000
+#define SDRAM0_BXCR_SZ_MASK 0x000e0000
+#define SDRAM0_BXCR_AM_MASK 0x0000e000
-#define SDRAM0_BXCR_SZ_SHIFT (31-14)
-#define SDRAM0_BXCR_AM_SHIFT (31-18)
+#define SDRAM0_BXCR_SZ_SHIFT (31-14)
+#define SDRAM0_BXCR_AM_SHIFT (31-18)
-#define SDRAM0_BXCR_SZ(x) ( (( x << SDRAM0_BXCR_SZ_SHIFT) & SDRAM0_BXCR_SZ_MASK) )
-#define SDRAM0_BXCR_AM(x) ( (( x << SDRAM0_BXCR_AM_SHIFT) & SDRAM0_BXCR_AM_MASK) )
+#define SDRAM0_BXCR_SZ(x) ( (( x << SDRAM0_BXCR_SZ_SHIFT) & SDRAM0_BXCR_SZ_MASK) )
+#define SDRAM0_BXCR_AM(x) ( (( x << SDRAM0_BXCR_AM_SHIFT) & SDRAM0_BXCR_AM_MASK) )
#ifdef CONFIG_SPDDRAM_SILENT
# define SPD_ERR(x) do { return 0; } while (0)
* This function is reading data from the DIMM module EEPROM over the SPD bus
* and uses that to program the sdram controller.
*
- * This works on boards that has the same schematics that the IBM walnut has.
+ * This works on boards that has the same schematics that the AMCC walnut has.
*
* Input: null for default I2C spd functions or a pointer to a custom function
* returning spd_data.
* data from DIMM:
* 27 IN Row Precharge Time ( t RP)
* 29 MIN RAS to CAS Delay ( t RCD)
- * 127 Component and Clock Detail ,clk0-clk3, junction temp, CAS
+ * 127 Component and Clock Detail ,clk0-clk3, junction temp, CAS
* -------------------------------------------------------------------*/
/*
*/
tmp = read_spd(127) & 0x6;
- if (tmp == 0x02){ /* only cas = 2 supported */
+ if (tmp == 0x02) { /* only cas = 2 supported */
min_cas = 2;
-/* t_ck = read_spd(9); */
-/* t_ac = read_spd(10); */
- } else if (tmp == 0x04) { /* only cas = 3 supported */
+/* t_ck = read_spd(9); */
+/* t_ac = read_spd(10); */
+ } else if (tmp == 0x04) { /* only cas = 3 supported */
min_cas = 3;
-/* t_ck = read_spd(9); */
-/* t_ac = read_spd(10); */
- } else if (tmp == 0x06) { /* 2,3 supported, so use 2 */
+/* t_ck = read_spd(9); */
+/* t_ac = read_spd(10); */
+ } else if (tmp == 0x06) { /* 2,3 supported, so use 2 */
min_cas = 2;
-/* t_ck = read_spd(23); */
-/* t_ac = read_spd(24); */
+/* t_ck = read_spd(23); */
+/* t_ac = read_spd(24); */
} else {
SPD_ERR("SDRAM - unsupported CAS latency \n");
}
}
/* convert from nsec to bus cycles */
tmp = (tmp * 10) / bus_period_x_10;
- sdram0_rtr = (tmp & 0x3ff8) << SDRAM0_RTR_SHIFT;
+ sdram0_rtr = (tmp & 0x3ff8) << SDRAM0_RTR_SHIFT;
/*------------------------------------------------------------------
* determine the number of banks used
else if (tmp==4)
bank_cnt *= 4;
else
- bank_cnt = 8; /* 8 is an error code */
+ bank_cnt = 8; /* 8 is an error code */
if (bank_cnt > 4) /* we only have 4 banks to work with */
SPD_ERR("SDRAM - unsupported module rows for this width\n");
total_size *= read_spd(5); /* mult by module rows (dimm sides) */
/*------------------------------------------------------------------
- * map rows * cols * banks to a mode
+ * map rows * cols * banks to a mode
* -------------------------------------------------------------------*/
switch (row) {
bank_size = total_size / bank_cnt;
/* convert bank size to bank size code for ppc4xx
by takeing log2(bank_size) - 22 */
- tmp = bank_size; /* start with tmp = bank_size */
+ tmp = bank_size; /* start with tmp = bank_size */
bank_code = 0; /* and bank_code = 0 */
- while (tmp > 1) { /* this takes log2 of tmp */
+ while (tmp > 1) { /* this takes log2 of tmp */
bank_code++; /* and stores result in bank_code */
tmp = tmp >> 1;
} /* bank_code is now log2(bank_size) */
#endif
mtsdram0( mem_sdtr1 , sdram0_tr );
- /* SDRAM have a power on delay, 500 micro should do */
+ /* SDRAM have a power on delay, 500 micro should do */
udelay(500);
sdram0_cfg = SDRAM0_CFG_DCE | SDRAM0_CFG_BRPF(1) | SDRAM0_CFG_ECCDD | SDRAM0_CFG_EMDULR;
if (ecc_on)
int spd_read(uint addr)
{
- char data[2];
+ uchar data[2];
if (i2c_read(SPD_EEPROM_ADDRESS, addr, 1, data, 1) == 0)
return (int)data[0];
return 0;
}
-#else /* CONFIG_440 */
+#else /* CONFIG_440 */
/*-----------------------------------------------------------------------------
| Memory Controller Options 0
+-----------------------------------------------------------------------------*/
-#define SDRAM_CFG0_DCEN 0x80000000 /* SDRAM Controller Enable */
-#define SDRAM_CFG0_MCHK_MASK 0x30000000 /* Memory data errchecking mask */
-#define SDRAM_CFG0_MCHK_NON 0x00000000 /* No ECC generation */
-#define SDRAM_CFG0_MCHK_GEN 0x20000000 /* ECC generation */
-#define SDRAM_CFG0_MCHK_CHK 0x30000000 /* ECC generation and checking */
-#define SDRAM_CFG0_RDEN 0x08000000 /* Registered DIMM enable */
-#define SDRAM_CFG0_PMUD 0x04000000 /* Page management unit */
-#define SDRAM_CFG0_DMWD_MASK 0x02000000 /* DRAM width mask */
-#define SDRAM_CFG0_DMWD_32 0x00000000 /* 32 bits */
-#define SDRAM_CFG0_DMWD_64 0x02000000 /* 64 bits */
-#define SDRAM_CFG0_UIOS_MASK 0x00C00000 /* Unused IO State */
-#define SDRAM_CFG0_PDP 0x00200000 /* Page deallocation policy */
+#define SDRAM_CFG0_DCEN 0x80000000 /* SDRAM Controller Enable */
+#define SDRAM_CFG0_MCHK_MASK 0x30000000 /* Memory data errchecking mask */
+#define SDRAM_CFG0_MCHK_NON 0x00000000 /* No ECC generation */
+#define SDRAM_CFG0_MCHK_GEN 0x20000000 /* ECC generation */
+#define SDRAM_CFG0_MCHK_CHK 0x30000000 /* ECC generation and checking */
+#define SDRAM_CFG0_RDEN 0x08000000 /* Registered DIMM enable */
+#define SDRAM_CFG0_PMUD 0x04000000 /* Page management unit */
+#define SDRAM_CFG0_DMWD_MASK 0x02000000 /* DRAM width mask */
+#define SDRAM_CFG0_DMWD_32 0x00000000 /* 32 bits */
+#define SDRAM_CFG0_DMWD_64 0x02000000 /* 64 bits */
+#define SDRAM_CFG0_UIOS_MASK 0x00C00000 /* Unused IO State */
+#define SDRAM_CFG0_PDP 0x00200000 /* Page deallocation policy */
/*-----------------------------------------------------------------------------
| Memory Controller Options 1
+-----------------------------------------------------------------------------*/
-#define SDRAM_CFG1_SRE 0x80000000 /* Self-Refresh Entry */
-#define SDRAM_CFG1_PMEN 0x40000000 /* Power Management Enable */
+#define SDRAM_CFG1_SRE 0x80000000 /* Self-Refresh Entry */
+#define SDRAM_CFG1_PMEN 0x40000000 /* Power Management Enable */
/*-----------------------------------------------------------------------------+
| SDRAM DEVPOT Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_DEVOPT_DLL 0x80000000
-#define SDRAM_DEVOPT_DS 0x40000000
+#define SDRAM_DEVOPT_DLL 0x80000000
+#define SDRAM_DEVOPT_DS 0x40000000
/*-----------------------------------------------------------------------------+
| SDRAM MCSTS Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_MCSTS_MRSC 0x80000000
-#define SDRAM_MCSTS_SRMS 0x40000000
-#define SDRAM_MCSTS_CIS 0x20000000
+#define SDRAM_MCSTS_MRSC 0x80000000
+#define SDRAM_MCSTS_SRMS 0x40000000
+#define SDRAM_MCSTS_CIS 0x20000000
/*-----------------------------------------------------------------------------
| SDRAM Refresh Timer Register
+-----------------------------------------------------------------------------*/
-#define SDRAM_RTR_RINT_MASK 0xFFFF0000
+#define SDRAM_RTR_RINT_MASK 0xFFFF0000
#define SDRAM_RTR_RINT_ENCODE(n) (((n) << 16) & SDRAM_RTR_RINT_MASK)
-#define sdram_HZ_to_ns(hertz) (1000000000/(hertz))
+#define sdram_HZ_to_ns(hertz) (1000000000/(hertz))
/*-----------------------------------------------------------------------------+
| SDRAM UABus Base Address Reg
+-----------------------------------------------------------------------------*/
-#define SDRAM_UABBA_UBBA_MASK 0x0000000F
+#define SDRAM_UABBA_UBBA_MASK 0x0000000F
/*-----------------------------------------------------------------------------+
| Memory Bank 0-7 configuration
+-----------------------------------------------------------------------------*/
-#define SDRAM_BXCR_SDBA_MASK 0xff800000 /* Base address */
-#define SDRAM_BXCR_SDSZ_MASK 0x000e0000 /* Size */
-#define SDRAM_BXCR_SDSZ_8 0x00020000 /* 8M */
-#define SDRAM_BXCR_SDSZ_16 0x00040000 /* 16M */
-#define SDRAM_BXCR_SDSZ_32 0x00060000 /* 32M */
-#define SDRAM_BXCR_SDSZ_64 0x00080000 /* 64M */
-#define SDRAM_BXCR_SDSZ_128 0x000a0000 /* 128M */
-#define SDRAM_BXCR_SDSZ_256 0x000c0000 /* 256M */
-#define SDRAM_BXCR_SDSZ_512 0x000e0000 /* 512M */
-#define SDRAM_BXCR_SDAM_MASK 0x0000e000 /* Addressing mode */
-#define SDRAM_BXCR_SDAM_1 0x00000000 /* Mode 1 */
-#define SDRAM_BXCR_SDAM_2 0x00002000 /* Mode 2 */
-#define SDRAM_BXCR_SDAM_3 0x00004000 /* Mode 3 */
-#define SDRAM_BXCR_SDAM_4 0x00006000 /* Mode 4 */
-#define SDRAM_BXCR_SDBE 0x00000001 /* Memory Bank Enable */
+#define SDRAM_BXCR_SDBA_MASK 0xff800000 /* Base address */
+#define SDRAM_BXCR_SDSZ_MASK 0x000e0000 /* Size */
+#define SDRAM_BXCR_SDSZ_8 0x00020000 /* 8M */
+#define SDRAM_BXCR_SDSZ_16 0x00040000 /* 16M */
+#define SDRAM_BXCR_SDSZ_32 0x00060000 /* 32M */
+#define SDRAM_BXCR_SDSZ_64 0x00080000 /* 64M */
+#define SDRAM_BXCR_SDSZ_128 0x000a0000 /* 128M */
+#define SDRAM_BXCR_SDSZ_256 0x000c0000 /* 256M */
+#define SDRAM_BXCR_SDSZ_512 0x000e0000 /* 512M */
+#define SDRAM_BXCR_SDAM_MASK 0x0000e000 /* Addressing mode */
+#define SDRAM_BXCR_SDAM_1 0x00000000 /* Mode 1 */
+#define SDRAM_BXCR_SDAM_2 0x00002000 /* Mode 2 */
+#define SDRAM_BXCR_SDAM_3 0x00004000 /* Mode 3 */
+#define SDRAM_BXCR_SDAM_4 0x00006000 /* Mode 4 */
+#define SDRAM_BXCR_SDBE 0x00000001 /* Memory Bank Enable */
/*-----------------------------------------------------------------------------+
| SDRAM TR0 Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_TR0_SDWR_MASK 0x80000000
-#define SDRAM_TR0_SDWR_2_CLK 0x00000000
-#define SDRAM_TR0_SDWR_3_CLK 0x80000000
-#define SDRAM_TR0_SDWD_MASK 0x40000000
-#define SDRAM_TR0_SDWD_0_CLK 0x00000000
-#define SDRAM_TR0_SDWD_1_CLK 0x40000000
-#define SDRAM_TR0_SDCL_MASK 0x01800000
-#define SDRAM_TR0_SDCL_2_0_CLK 0x00800000
-#define SDRAM_TR0_SDCL_2_5_CLK 0x01000000
-#define SDRAM_TR0_SDCL_3_0_CLK 0x01800000
-#define SDRAM_TR0_SDPA_MASK 0x000C0000
-#define SDRAM_TR0_SDPA_2_CLK 0x00040000
-#define SDRAM_TR0_SDPA_3_CLK 0x00080000
-#define SDRAM_TR0_SDPA_4_CLK 0x000C0000
-#define SDRAM_TR0_SDCP_MASK 0x00030000
-#define SDRAM_TR0_SDCP_2_CLK 0x00000000
-#define SDRAM_TR0_SDCP_3_CLK 0x00010000
-#define SDRAM_TR0_SDCP_4_CLK 0x00020000
-#define SDRAM_TR0_SDCP_5_CLK 0x00030000
-#define SDRAM_TR0_SDLD_MASK 0x0000C000
-#define SDRAM_TR0_SDLD_1_CLK 0x00000000
-#define SDRAM_TR0_SDLD_2_CLK 0x00004000
-#define SDRAM_TR0_SDRA_MASK 0x0000001C
-#define SDRAM_TR0_SDRA_6_CLK 0x00000000
-#define SDRAM_TR0_SDRA_7_CLK 0x00000004
-#define SDRAM_TR0_SDRA_8_CLK 0x00000008
-#define SDRAM_TR0_SDRA_9_CLK 0x0000000C
-#define SDRAM_TR0_SDRA_10_CLK 0x00000010
-#define SDRAM_TR0_SDRA_11_CLK 0x00000014
-#define SDRAM_TR0_SDRA_12_CLK 0x00000018
-#define SDRAM_TR0_SDRA_13_CLK 0x0000001C
-#define SDRAM_TR0_SDRD_MASK 0x00000003
-#define SDRAM_TR0_SDRD_2_CLK 0x00000001
-#define SDRAM_TR0_SDRD_3_CLK 0x00000002
-#define SDRAM_TR0_SDRD_4_CLK 0x00000003
+#define SDRAM_TR0_SDWR_MASK 0x80000000
+#define SDRAM_TR0_SDWR_2_CLK 0x00000000
+#define SDRAM_TR0_SDWR_3_CLK 0x80000000
+#define SDRAM_TR0_SDWD_MASK 0x40000000
+#define SDRAM_TR0_SDWD_0_CLK 0x00000000
+#define SDRAM_TR0_SDWD_1_CLK 0x40000000
+#define SDRAM_TR0_SDCL_MASK 0x01800000
+#define SDRAM_TR0_SDCL_2_0_CLK 0x00800000
+#define SDRAM_TR0_SDCL_2_5_CLK 0x01000000
+#define SDRAM_TR0_SDCL_3_0_CLK 0x01800000
+#define SDRAM_TR0_SDPA_MASK 0x000C0000
+#define SDRAM_TR0_SDPA_2_CLK 0x00040000
+#define SDRAM_TR0_SDPA_3_CLK 0x00080000
+#define SDRAM_TR0_SDPA_4_CLK 0x000C0000
+#define SDRAM_TR0_SDCP_MASK 0x00030000
+#define SDRAM_TR0_SDCP_2_CLK 0x00000000
+#define SDRAM_TR0_SDCP_3_CLK 0x00010000
+#define SDRAM_TR0_SDCP_4_CLK 0x00020000
+#define SDRAM_TR0_SDCP_5_CLK 0x00030000
+#define SDRAM_TR0_SDLD_MASK 0x0000C000
+#define SDRAM_TR0_SDLD_1_CLK 0x00000000
+#define SDRAM_TR0_SDLD_2_CLK 0x00004000
+#define SDRAM_TR0_SDRA_MASK 0x0000001C
+#define SDRAM_TR0_SDRA_6_CLK 0x00000000
+#define SDRAM_TR0_SDRA_7_CLK 0x00000004
+#define SDRAM_TR0_SDRA_8_CLK 0x00000008
+#define SDRAM_TR0_SDRA_9_CLK 0x0000000C
+#define SDRAM_TR0_SDRA_10_CLK 0x00000010
+#define SDRAM_TR0_SDRA_11_CLK 0x00000014
+#define SDRAM_TR0_SDRA_12_CLK 0x00000018
+#define SDRAM_TR0_SDRA_13_CLK 0x0000001C
+#define SDRAM_TR0_SDRD_MASK 0x00000003
+#define SDRAM_TR0_SDRD_2_CLK 0x00000001
+#define SDRAM_TR0_SDRD_3_CLK 0x00000002
+#define SDRAM_TR0_SDRD_4_CLK 0x00000003
/*-----------------------------------------------------------------------------+
| SDRAM TR1 Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_TR1_RDSS_MASK 0xC0000000
-#define SDRAM_TR1_RDSS_TR0 0x00000000
-#define SDRAM_TR1_RDSS_TR1 0x40000000
-#define SDRAM_TR1_RDSS_TR2 0x80000000
-#define SDRAM_TR1_RDSS_TR3 0xC0000000
-#define SDRAM_TR1_RDSL_MASK 0x00C00000
-#define SDRAM_TR1_RDSL_STAGE1 0x00000000
-#define SDRAM_TR1_RDSL_STAGE2 0x00400000
-#define SDRAM_TR1_RDSL_STAGE3 0x00800000
-#define SDRAM_TR1_RDCD_MASK 0x00000800
-#define SDRAM_TR1_RDCD_RCD_0_0 0x00000000
-#define SDRAM_TR1_RDCD_RCD_1_2 0x00000800
-#define SDRAM_TR1_RDCT_MASK 0x000001FF
-#define SDRAM_TR1_RDCT_ENCODE(x) (((x) << 0) & SDRAM_TR1_RDCT_MASK)
-#define SDRAM_TR1_RDCT_DECODE(x) (((x) & SDRAM_TR1_RDCT_MASK) >> 0)
-#define SDRAM_TR1_RDCT_MIN 0x00000000
-#define SDRAM_TR1_RDCT_MAX 0x000001FF
+#define SDRAM_TR1_RDSS_MASK 0xC0000000
+#define SDRAM_TR1_RDSS_TR0 0x00000000
+#define SDRAM_TR1_RDSS_TR1 0x40000000
+#define SDRAM_TR1_RDSS_TR2 0x80000000
+#define SDRAM_TR1_RDSS_TR3 0xC0000000
+#define SDRAM_TR1_RDSL_MASK 0x00C00000
+#define SDRAM_TR1_RDSL_STAGE1 0x00000000
+#define SDRAM_TR1_RDSL_STAGE2 0x00400000
+#define SDRAM_TR1_RDSL_STAGE3 0x00800000
+#define SDRAM_TR1_RDCD_MASK 0x00000800
+#define SDRAM_TR1_RDCD_RCD_0_0 0x00000000
+#define SDRAM_TR1_RDCD_RCD_1_2 0x00000800
+#define SDRAM_TR1_RDCT_MASK 0x000001FF
+#define SDRAM_TR1_RDCT_ENCODE(x) (((x) << 0) & SDRAM_TR1_RDCT_MASK)
+#define SDRAM_TR1_RDCT_DECODE(x) (((x) & SDRAM_TR1_RDCT_MASK) >> 0)
+#define SDRAM_TR1_RDCT_MIN 0x00000000
+#define SDRAM_TR1_RDCT_MAX 0x000001FF
/*-----------------------------------------------------------------------------+
| SDRAM WDDCTR Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_WDDCTR_WRCP_MASK 0xC0000000
-#define SDRAM_WDDCTR_WRCP_0DEG 0x00000000
-#define SDRAM_WDDCTR_WRCP_90DEG 0x40000000
-#define SDRAM_WDDCTR_WRCP_180DEG 0x80000000
-#define SDRAM_WDDCTR_DCD_MASK 0x000001FF
+#define SDRAM_WDDCTR_WRCP_MASK 0xC0000000
+#define SDRAM_WDDCTR_WRCP_0DEG 0x00000000
+#define SDRAM_WDDCTR_WRCP_90DEG 0x40000000
+#define SDRAM_WDDCTR_WRCP_180DEG 0x80000000
+#define SDRAM_WDDCTR_DCD_MASK 0x000001FF
/*-----------------------------------------------------------------------------+
| SDRAM CLKTR Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_CLKTR_CLKP_MASK 0xC0000000
-#define SDRAM_CLKTR_CLKP_0DEG 0x00000000
-#define SDRAM_CLKTR_CLKP_90DEG 0x40000000
-#define SDRAM_CLKTR_CLKP_180DEG 0x80000000
-#define SDRAM_CLKTR_DCDT_MASK 0x000001FF
+#define SDRAM_CLKTR_CLKP_MASK 0xC0000000
+#define SDRAM_CLKTR_CLKP_0DEG 0x00000000
+#define SDRAM_CLKTR_CLKP_90DEG 0x40000000
+#define SDRAM_CLKTR_CLKP_180DEG 0x80000000
+#define SDRAM_CLKTR_DCDT_MASK 0x000001FF
/*-----------------------------------------------------------------------------+
| SDRAM DLYCAL Options
+-----------------------------------------------------------------------------*/
-#define SDRAM_DLYCAL_DLCV_MASK 0x000003FC
-#define SDRAM_DLYCAL_DLCV_ENCODE(x) (((x)<<2) & SDRAM_DLYCAL_DLCV_MASK)
-#define SDRAM_DLYCAL_DLCV_DECODE(x) (((x) & SDRAM_DLYCAL_DLCV_MASK)>>2)
+#define SDRAM_DLYCAL_DLCV_MASK 0x000003FC
+#define SDRAM_DLYCAL_DLCV_ENCODE(x) (((x)<<2) & SDRAM_DLYCAL_DLCV_MASK)
+#define SDRAM_DLYCAL_DLCV_DECODE(x) (((x) & SDRAM_DLYCAL_DLCV_MASK)>>2)
/*-----------------------------------------------------------------------------+
| General Definition
+-----------------------------------------------------------------------------*/
-#define DEFAULT_SPD_ADDR1 0x53
-#define DEFAULT_SPD_ADDR2 0x52
-#define MAXBANKS 4 /* at most 4 dimm banks */
-#define MAX_SPD_BYTES 256
-#define NUMHALFCYCLES 4
-#define NUMMEMTESTS 8
-#define NUMMEMWORDS 8
-#define MAXBXCR 4
-#define TRUE 1
-#define FALSE 0
+#define DEFAULT_SPD_ADDR1 0x53
+#define DEFAULT_SPD_ADDR2 0x52
+#define MAXBANKS 4 /* at most 4 dimm banks */
+#define MAX_SPD_BYTES 256
+#define NUMHALFCYCLES 4
+#define NUMMEMTESTS 8
+#define NUMMEMWORDS 8
+#define MAXBXCR 4
+#define TRUE 1
+#define FALSE 0
const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
{0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
0xAA55AA55, 0xAA55AA55}
};
+/* bank_parms is used to sort the bank sizes by descending order */
+struct bank_param {
+ unsigned long cr;
+ unsigned long bank_size_bytes;
+};
+
+typedef struct bank_param BANKPARMS;
+
+#ifdef CFG_SIMULATE_SPD_EEPROM
+extern unsigned char cfg_simulate_spd_eeprom[128];
+#endif
unsigned char spd_read(uchar chip, uint addr);
void get_spd_info(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void check_mem_type
(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void check_volt_type
(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void program_cfg0(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void program_cfg1(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void program_rtr (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void program_tr0 (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks);
+ unsigned long num_dimm_banks);
void program_tr1 (void);
-void program_ecc (unsigned long num_bytes);
+void program_ecc (unsigned long num_bytes);
unsigned
long program_bxcr(unsigned long* dimm_populated,
* This function is reading data from the DIMM module EEPROM over the SPD bus
* and uses that to program the sdram controller.
*
- * This works on boards that has the same schematics that the IBM walnut has.
+ * This works on boards that has the same schematics that the AMCC walnut has.
*
* BUG: Don't handle ECC memory
* BUG: A few values in the TR register is currently hardcoded
unsigned long total_size;
unsigned long cfg0;
unsigned long mcsts;
- unsigned long num_dimm_banks; /* on board dimm banks */
+ unsigned long num_dimm_banks; /* on board dimm banks */
num_dimm_banks = sizeof(iic0_dimm_addr);
*/
check_volt_type(dimm_populated, iic0_dimm_addr, num_dimm_banks);
-#if defined(CONFIG_440GX)
+#if defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) || defined(CONFIG_440SP)
/*
* Soft-reset SDRAM controller.
*/
return total_size;
}
-unsigned char spd_read(uchar chip, uint addr) {
+unsigned char spd_read(uchar chip, uint addr)
+{
unsigned char data[2];
+#ifdef CFG_SIMULATE_SPD_EEPROM
+ if (chip == CFG_SIMULATE_SPD_EEPROM) {
+ /*
+ * Onboard spd eeprom requested -> simulate values
+ */
+ return cfg_simulate_spd_eeprom[addr];
+ }
+#endif /* CFG_SIMULATE_SPD_EEPROM */
+
if (i2c_probe(chip) == 0) {
if (i2c_read(chip, addr, 1, data, 1) == 0) {
return data[0];
void get_spd_info(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long dimm_found;
}
}
-#ifndef CONFIG_BAMBOO /* bamboo has onboard DDR _and_ DDR DIMM's */
if (dimm_found == FALSE) {
printf("ERROR - No memory installed. Install a DDR-SDRAM DIMM.\n\n");
hang();
}
-#endif /* CONFIG_BAMBOO */
}
void check_mem_type(unsigned long* dimm_populated,
void program_cfg0(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long cfg0;
}
/*
- * program Page Management Unit
+ * program Page Management Unit (0 == enabled)
*/
- cfg0 |= SDRAM_CFG0_PMUD;
+ cfg0 &= ~SDRAM_CFG0_PMUD;
/*
* program Memory Controller Options 0
void program_cfg1(unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+ unsigned long num_dimm_banks)
{
unsigned long cfg1;
mfsdram(mem_cfg1, cfg1);
void program_rtr (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long bus_period_x_10;
void program_tr0 (unsigned long* dimm_populated,
unsigned char* iic0_dimm_addr,
- unsigned long num_dimm_banks)
+ unsigned long num_dimm_banks)
{
unsigned long dimm_num;
unsigned long tr0;
for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
if (dimm_populated[dimm_num] == TRUE) {
wcsbc = spd_read(iic0_dimm_addr[dimm_num], 15);
- t_rp_ns = spd_read(iic0_dimm_addr[dimm_num], 27) >> 2;
+ t_rp_ns = spd_read(iic0_dimm_addr[dimm_num], 27) >> 2;
t_rcd_ns = spd_read(iic0_dimm_addr[dimm_num], 29) >> 2;
t_ras_ns = spd_read(iic0_dimm_addr[dimm_num], 30);
cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18);
/*
* Program SD_WR and SD_WCSBC fields
*/
- tr0 |= SDRAM_TR0_SDWR_2_CLK; /* Write Recovery: 2 CLK */
+ tr0 |= SDRAM_TR0_SDWR_2_CLK; /* Write Recovery: 2 CLK */
switch (wcsbc) {
case 0:
tr0 |= SDRAM_TR0_SDWD_0_CLK;
{
unsigned long dimm_num;
unsigned long bank_base_addr;
- unsigned long bank_size_bytes;
unsigned long cr;
unsigned long i;
+ unsigned long j;
unsigned long temp;
unsigned char num_row_addr;
unsigned char num_col_addr;
unsigned char num_banks;
unsigned char bank_size_id;
-
-#ifndef CONFIG_BAMBOO
- unsigned long bxcr_num;
+ unsigned long ctrl_bank_num[MAXBANKS];
+ unsigned long bx_cr_num;
+ unsigned long largest_size_index;
+ unsigned long largest_size;
+ unsigned long current_size_index;
+ BANKPARMS bank_parms[MAXBXCR];
+ unsigned long sorted_bank_num[MAXBXCR]; /* DDR Controller bank number table (sorted by size) */
+ unsigned long sorted_bank_size[MAXBXCR]; /* DDR Controller bank size table (sorted by size)*/
/*
* Set the BxCR regs. First, wipe out the bank config registers.
*/
- for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
- mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
+ for (bx_cr_num = 0; bx_cr_num < MAXBXCR; bx_cr_num++) {
+ mtdcr(memcfga, mem_b0cr + (bx_cr_num << 2));
mtdcr(memcfgd, 0x00000000);
+ bank_parms[bx_cr_num].bank_size_bytes = 0;
}
+
+#ifdef CONFIG_BAMBOO
+ /*
+ * This next section is hardware dependent and must be programmed
+ * to match the hardware. For bammboo, the following holds...
+ * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0
+ * 2. SDRAM0_B1CR: Bank 0 of dimm 1 ctrl_bank_num : 1
+ * 3. SDRAM0_B2CR: Bank 1 of dimm 1 ctrl_bank_num : 1
+ * 4. SDRAM0_B3CR: Bank 0 of dimm 2 ctrl_bank_num : 3
+ * ctrl_bank_num corresponds to the first usable DDR controller bank number by DIMM
+ */
+ ctrl_bank_num[0] = 0;
+ ctrl_bank_num[1] = 1;
+ ctrl_bank_num[2] = 3;
+#else
+ ctrl_bank_num[0] = 0;
+ ctrl_bank_num[1] = 1;
+ ctrl_bank_num[2] = 2;
+ ctrl_bank_num[3] = 3;
#endif
/*
* reset the bank_base address
*/
-#ifndef CONFIG_BAMBOO
bank_base_addr = CFG_SDRAM_BASE;
-#else
- bank_base_addr = CFG_SDRAM_ONBOARD_SIZE;
-#endif
for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
if (dimm_populated[dimm_num] == TRUE) {
* Set the SDRAM0_BxCR regs
*/
cr = 0;
- bank_size_bytes = 4 * 1024 * 1024 * bank_size_id;
switch (bank_size_id) {
case 0x02:
cr |= SDRAM_BXCR_SDSZ_8;
*/
cr |= SDRAM_BXCR_SDBE;
- /*------------------------------------------------------------------
- | This next section is hardware dependent and must be programmed
- | to match the hardware.
- +-----------------------------------------------------------------*/
- if (dimm_num == 0) {
- for (i = 0; i < num_banks; i++) {
-#ifndef CONFIG_BAMBOO
- mtdcr(memcfga, mem_b0cr + (i << 2));
-#else
- mtdcr(memcfga, mem_b1cr + (i << 2));
-#endif
- temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
- SDRAM_BXCR_SDSZ_MASK |
- SDRAM_BXCR_SDAM_MASK |
- SDRAM_BXCR_SDBE);
- cr |= temp;
- cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
- mtdcr(memcfgd, cr);
- bank_base_addr += bank_size_bytes;
- }
- } else {
- for (i = 0; i < num_banks; i++) {
-#ifndef CONFIG_BAMBOO
- mtdcr(memcfga, mem_b2cr + (i << 2));
-#else
- mtdcr(memcfga, mem_b3cr + (i << 2));
-#endif
- temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
- SDRAM_BXCR_SDSZ_MASK |
- SDRAM_BXCR_SDAM_MASK |
- SDRAM_BXCR_SDBE);
- cr |= temp;
- cr |= bank_base_addr & SDRAM_BXCR_SDBA_MASK;
- mtdcr(memcfgd, cr);
- bank_base_addr += bank_size_bytes;
- }
+ for (i = 0; i < num_banks; i++) {
+ bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes =
+ (4 * 1024 * 1024) * bank_size_id;
+ bank_parms[ctrl_bank_num[dimm_num]+i].cr = cr;
}
}
}
+ /* Initialize sort tables */
+ for (i = 0; i < MAXBXCR; i++) {
+ sorted_bank_num[i] = i;
+ sorted_bank_size[i] = bank_parms[i].bank_size_bytes;
+ }
+
+ for (i = 0; i < MAXBXCR-1; i++) {
+ largest_size = sorted_bank_size[i];
+ largest_size_index = 255;
+
+ /* Find the largest remaining value */
+ for (j = i + 1; j < MAXBXCR; j++) {
+ if (sorted_bank_size[j] > largest_size) {
+ /* Save largest remaining value and its index */
+ largest_size = sorted_bank_size[j];
+ largest_size_index = j;
+ }
+ }
+
+ if (largest_size_index != 255) {
+ /* Swap the current and largest values */
+ current_size_index = sorted_bank_num[largest_size_index];
+ sorted_bank_size[largest_size_index] = sorted_bank_size[i];
+ sorted_bank_size[i] = largest_size;
+ sorted_bank_num[largest_size_index] = sorted_bank_num[i];
+ sorted_bank_num[i] = current_size_index;
+ }
+ }
+
+ /* Set the SDRAM0_BxCR regs thanks to sort tables */
+ for (bx_cr_num = 0, bank_base_addr = 0; bx_cr_num < MAXBXCR; bx_cr_num++) {
+ if (bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes) {
+ mtdcr(memcfga, mem_b0cr + (sorted_bank_num[bx_cr_num] << 2));
+ temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK | SDRAM_BXCR_SDSZ_MASK |
+ SDRAM_BXCR_SDAM_MASK | SDRAM_BXCR_SDBE);
+ temp = temp | (bank_base_addr & SDRAM_BXCR_SDBA_MASK) |
+ bank_parms[sorted_bank_num[bx_cr_num]].cr;
+ mtdcr(memcfgd, temp);
+ bank_base_addr += bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes;
+ }
+ }
+
return(bank_base_addr);
}
-void program_ecc (unsigned long num_bytes)
+void program_ecc (unsigned long num_bytes)
{
unsigned long bank_base_addr;
unsigned long current_address;
projects / platform / kernel / u-boot.git / blobdiff