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armv8: fsl-layerscale: Rewrite reserving memory for MC and debug server

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MC and debug server are not board-specific. Move reserving memory to SoC
file, using the new board_reserve_ram_top function. Reduce debug server
memory by 2MB to make room for secure memory.

In the system with MC and debug server, the top of u-boot memory
is not the end of memory. PRAM is not used for this reservation.

Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
York Sun 2015-12-07 11:08:58 -08:00
parent aabd7ddb88
commit c04921414c
6 changed files with 25 additions and 60 deletions
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4
README
View File

@ -5056,8 +5056,8 @@ This firmware often needs to be loaded during U-Boot booting.
- CONFIG_SYS_DEBUG_SERVER_DRAM_BLOCK_MIN_SIZE
Define minimum DDR size required for debug server image
- CONFIG_SYS_MEM_TOP_HIDE_MIN
Define minimum DDR size to be hided from top of the DDR memory
- CONFIG_SYS_MC_RSV_MEM_ALIGN
Define alignment of reserved memory MC requires
Reproducible builds
-------------------

21
arch/arm/cpu/armv8/fsl-layerscape/cpu.c
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@ -636,3 +636,24 @@ void reset_cpu(ulong addr)
val |= 0x02;
scfg_out32(rstcr, val);
}
phys_size_t board_reserve_ram_top(phys_size_t ram_size)
{
phys_size_t ram_top = ram_size;
#ifdef CONFIG_SYS_MEM_TOP_HIDE
#error CONFIG_SYS_MEM_TOP_HIDE not to be used together with this function
#endif
/* Carve the Debug Server private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_DEBUG_SERVER
ram_top -= debug_server_get_dram_block_size();
#endif
/* Carve the MC private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_MC_ENET
ram_top -= mc_get_dram_block_size();
ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);
#endif
return ram_top;
}

17
board/freescale/ls2080a/ls2080a.c
View File

@ -68,23 +68,6 @@ int arch_misc_init(void)
}
#endif
unsigned long get_dram_size_to_hide(void)
{
unsigned long dram_to_hide = 0;
/* Carve the Debug Server private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_DEBUG_SERVER
dram_to_hide += debug_server_get_dram_block_size();
#endif
/* Carve the MC private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_MC_ENET
dram_to_hide += mc_get_dram_block_size();
#endif
return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
}
int board_eth_init(bd_t *bis)
{
int error = 0;

17
board/freescale/ls2080aqds/ls2080aqds.c
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@ -253,23 +253,6 @@ int arch_misc_init(void)
}
#endif
unsigned long get_dram_size_to_hide(void)
{
unsigned long dram_to_hide = 0;
/* Carve the Debug Server private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_DEBUG_SERVER
dram_to_hide += debug_server_get_dram_block_size();
#endif
/* Carve the MC private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_MC_ENET
dram_to_hide += mc_get_dram_block_size();
#endif
return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
}
#ifdef CONFIG_FSL_MC_ENET
void fdt_fixup_board_enet(void *fdt)
{

17
board/freescale/ls2080ardb/ls2080ardb.c
View File

@ -219,23 +219,6 @@ int arch_misc_init(void)
}
#endif
unsigned long get_dram_size_to_hide(void)
{
unsigned long dram_to_hide = 0;
/* Carve the Debug Server private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_DEBUG_SERVER
dram_to_hide += debug_server_get_dram_block_size();
#endif
/* Carve the MC private DRAM block from the end of DRAM */
#ifdef CONFIG_FSL_MC_ENET
dram_to_hide += mc_get_dram_block_size();
#endif
return roundup(dram_to_hide, CONFIG_SYS_MEM_TOP_HIDE_MIN);
}
#ifdef CONFIG_FSL_MC_ENET
void fdt_fixup_board_enet(void *fdt)
{

9
include/configs/ls2080a_common.h
View File

@ -195,10 +195,9 @@ unsigned long long get_qixis_addr(void);
* 512MB aligned, so the min size to hide is 512MB.
*/
#if defined(CONFIG_FSL_MC_ENET) || defined(CONFIG_FSL_DEBUG_SERVER)
#define CONFIG_SYS_DEBUG_SERVER_DRAM_BLOCK_MIN_SIZE (256UL * 1024 * 1024)
#define CONFIG_SYS_DEBUG_SERVER_DRAM_BLOCK_MIN_SIZE (254UL * 1024 * 1024)
#define CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE (256UL * 1024 * 1024)
#define CONFIG_SYS_MEM_TOP_HIDE_MIN (512UL * 1024 * 1024)
#define CONFIG_SYS_MEM_TOP_HIDE get_dram_size_to_hide()
#define CONFIG_SYS_MC_RSV_MEM_ALIGN (512UL * 1024 * 1024)
#endif
/* PCIe */
@ -290,10 +289,6 @@ unsigned long long get_qixis_addr(void);
#define CONFIG_AUTO_COMPLETE
#define CONFIG_SYS_MAXARGS 64 /* max command args */
#ifndef __ASSEMBLY__
unsigned long get_dram_size_to_hide(void);
#endif
#define CONFIG_PANIC_HANG /* do not reset board on panic */
#define CONFIG_SPL_BSS_START_ADDR 0x80100000