mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
4705b2e804
This patch is V2 of the MMCIF romImage boot support for sh7724 and the Ecovec board. With this patch applied and CONFIG_ROMIMAGE_MMCIF selected the romImage kernel image can be written to a MMC card and booted directly by the sh7724 cpu. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
48 lines
1023 B
C
48 lines
1023 B
C
#ifdef __ASSEMBLY__
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/* EcoVec board specific boot code:
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* converts the "partner-jet-script.txt" script into assembly
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* the assembly code is the first code to be executed in the romImage
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*/
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#include <asm/romimage-macros.h>
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#include "partner-jet-setup.txt"
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/* execute icbi after enabling cache */
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mov.l 1f, r0
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icbi @r0
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/* jump to cached area */
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mova 2f, r0
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jmp @r0
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nop
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.align 2
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1 : .long 0xa8000000
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2 :
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#else /* __ASSEMBLY__ */
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/* Ecovec board specific information:
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*
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* Set the following to enable MMCIF boot from the MMC card in CN12:
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*
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* DS1.5 = OFF (SH BOOT pin set to L)
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* DS2.6 = OFF (Select MMCIF on CN12 instead of SDHI1)
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* DS2.7 = ON (Select MMCIF on CN12 instead of SDHI1)
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*
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*/
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#define HIZCRA 0xa4050158
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#define PGDR 0xa405012c
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extern inline void mmcif_update_progress(int nr)
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{
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/* disable Hi-Z for LED pins */
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__raw_writew(__raw_readw(HIZCRA) & ~(1 << 1), HIZCRA);
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/* update progress on LED4, LED5, LED6 and LED7 */
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__raw_writeb(1 << (nr - 1), PGDR);
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}
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#endif /* __ASSEMBLY__ */
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