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-rw-r--r--board/lwmon5/sdram.c247
1 files changed, 0 insertions, 247 deletions
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
deleted file mode 100644
index 5dfbb0b..0000000
--- a/board/lwmon5/sdram.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * (C) Copyright 2006
- * Sylvie Gohl, AMCC/IBM, gohl.sylvie@fr.ibm.com
- * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol@fr.ibm.com
- * Thierry Roman, AMCC/IBM, thierry_roman@fr.ibm.com
- * Alain Saurel, AMCC/IBM, alain.saurel@fr.ibm.com
- * Robert Snyder, AMCC/IBM, rob.snyder@fr.ibm.com
- *
- * (C) Copyright 2007-2013
- * Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/* define DEBUG for debugging output (obviously ;-)) */
-#if 0
-#define DEBUG
-#endif
-
-#include <common.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/io.h>
-#include <asm/cache.h>
-#include <asm/ppc440.h>
-#include <watchdog.h>
-
-/*
- * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory
- * region. Right now the cache should still be disabled in U-Boot because of the
- * EMAC driver, that need it's buffer descriptor to be located in non cached
- * memory.
- *
- * If at some time this restriction doesn't apply anymore, just define
- * CONFIG_4xx_DCACHE in the board config file and this code should setup
- * everything correctly.
- */
-#ifdef CONFIG_4xx_DCACHE
-#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */
-#else
-#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */
-#endif
-
-/*-----------------------------------------------------------------------------+
- * Prototypes
- *-----------------------------------------------------------------------------*/
-extern int denali_wait_for_dlllock(void);
-extern void denali_core_search_data_eye(void);
-extern void dcbz_area(u32 start_address, u32 num_bytes);
-
-static u32 is_ecc_enabled(void)
-{
- u32 val;
-
- mfsdram(DDR0_22, val);
- val &= DDR0_22_CTRL_RAW_MASK;
- if (val)
- return 1;
- else
- return 0;
-}
-
-void board_add_ram_info(int use_default)
-{
- PPC4xx_SYS_INFO board_cfg;
- u32 val;
-
- if (is_ecc_enabled())
- puts(" (ECC");
- else
- puts(" (ECC not");
-
- get_sys_info(&board_cfg);
- printf(" enabled, %ld MHz", (board_cfg.freqPLB * 2) / 1000000);
-
- mfsdram(DDR0_03, val);
- val = DDR0_03_CASLAT_DECODE(val);
- printf(", CL%d)", val);
-}
-
-#ifdef CONFIG_DDR_ECC
-static void wait_ddr_idle(void)
-{
- /*
- * Controller idle status cannot be determined for Denali
- * DDR2 code. Just return here.
- */
-}
-
-static void program_ecc(u32 start_address,
- u32 num_bytes,
- u32 tlb_word2_i_value)
-{
- u32 val;
- u32 current_addr = start_address;
- u32 size;
- int bytes_remaining;
-
- sync();
- wait_ddr_idle();
-
- /*
- * Because of 440EPx errata CHIP 11, we don't touch the last 256
- * bytes of SDRAM.
- */
- bytes_remaining = num_bytes - CONFIG_SYS_MEM_TOP_HIDE;
-
- /*
- * We have to write the ECC bytes by zeroing and flushing in smaller
- * steps, since the whole 256MByte takes too long for the external
- * watchdog.
- */
- while (bytes_remaining > 0) {
- size = min((64 << 20), bytes_remaining);
-
- /* Write zero's to SDRAM */
- dcbz_area(current_addr, size);
-
- /* Write modified dcache lines back to memory */
- clean_dcache_range(current_addr, current_addr + size);
-
- current_addr += 64 << 20;
- bytes_remaining -= 64 << 20;
- WATCHDOG_RESET();
- }
-
- sync();
- wait_ddr_idle();
-
- /* Clear error status */
- mfsdram(DDR0_00, val);
- mtsdram(DDR0_00, val | DDR0_00_INT_ACK_ALL);
-
- /* Set 'int_mask' parameter to functionnal value */
- mfsdram(DDR0_01, val);
- mtsdram(DDR0_01, ((val &~ DDR0_01_INT_MASK_MASK) | DDR0_01_INT_MASK_ALL_OFF));
-
- sync();
- wait_ddr_idle();
-}
-#endif
-
-/*************************************************************************
- *
- * initdram -- 440EPx's DDR controller is a DENALI Core
- *
- ************************************************************************/
-phys_size_t initdram (int board_type)
-{
-#if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_LCD4_LWMON5)
- /* CL=4 */
- mtsdram(DDR0_02, 0x00000000);
-
- mtsdram(DDR0_00, 0x0000190A);
- mtsdram(DDR0_01, 0x01000000);
- mtsdram(DDR0_03, 0x02040803); /* A suitable burst length was taken. CAS is right for our board */
-
- mtsdram(DDR0_04, 0x0B030300);
- mtsdram(DDR0_05, 0x02020308);
- mtsdram(DDR0_06, 0x0003C812);
- mtsdram(DDR0_07, 0x00090100);
- mtsdram(DDR0_08, 0x03c80001);
- mtsdram(DDR0_09, 0x00011D5F);
- mtsdram(DDR0_10, 0x00000100);
- mtsdram(DDR0_11, 0x000CC800);
- mtsdram(DDR0_12, 0x00000003);
- mtsdram(DDR0_14, 0x00000000);
- mtsdram(DDR0_17, 0x1e000000);
- mtsdram(DDR0_18, 0x1e1e1e1e);
- mtsdram(DDR0_19, 0x1e1e1e1e);
- mtsdram(DDR0_20, 0x0B0B0B0B);
- mtsdram(DDR0_21, 0x0B0B0B0B);
-#ifdef CONFIG_DDR_ECC
- mtsdram(DDR0_22, 0x00267F0B | DDR0_22_CTRL_RAW_ECC_ENABLE); /* enable ECC */
-#else
- mtsdram(DDR0_22, 0x00267F0B);
-#endif
-
- mtsdram(DDR0_23, 0x01000000);
- mtsdram(DDR0_24, 0x01010001);
-
- mtsdram(DDR0_26, 0x2D93028A);
- mtsdram(DDR0_27, 0x0784682B);
-
- mtsdram(DDR0_28, 0x00000080);
- mtsdram(DDR0_31, 0x00000000);
- mtsdram(DDR0_42, 0x01000008);
-
- mtsdram(DDR0_43, 0x050A0200);
- mtsdram(DDR0_44, 0x00000005);
- mtsdram(DDR0_02, 0x00000001); /* Activate the denali core */
-
- denali_wait_for_dlllock();
-
-#if defined(CONFIG_DDR_DATA_EYE)
- /* -----------------------------------------------------------+
- * Perform data eye search if requested.
- * ----------------------------------------------------------*/
- program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
- TLB_WORD2_I_ENABLE);
- denali_core_search_data_eye();
- remove_tlb(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20);
-#endif
-
- /*
- * Program tlb entries for this size (dynamic)
- */
- program_tlb(0, CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MBYTES_SDRAM << 20,
- MY_TLB_WORD2_I_ENABLE);
-
-#if defined(CONFIG_DDR_ECC)
-#if defined(CONFIG_4xx_DCACHE)
- /*
- * If ECC is enabled, initialize the parity bits.
- */
- program_ecc(0, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
-#else /* CONFIG_4xx_DCACHE */
- /*
- * Setup 2nd TLB with same physical address but different virtual address
- * with cache enabled. This is done for fast ECC generation.
- */
- program_tlb(0, CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
-
- /*
- * If ECC is enabled, initialize the parity bits.
- */
- program_ecc(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20, 0);
-
- /*
- * Now after initialization (auto-calibration and ECC generation)
- * remove the TLB entries with caches enabled and program again with
- * desired cache functionality
- */
- remove_tlb(CONFIG_SYS_DDR_CACHED_ADDR, CONFIG_SYS_MBYTES_SDRAM << 20);
-#endif /* CONFIG_4xx_DCACHE */
-#endif /* CONFIG_DDR_ECC */
-
- /*
- * Clear possible errors resulting from data-eye-search.
- * If not done, then we could get an interrupt later on when
- * exceptions are enabled.
- */
- set_mcsr(get_mcsr());
-#endif /* CONFIG_SPL_BUILD */
-
- return (CONFIG_SYS_MBYTES_SDRAM << 20);
-}
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