coreboot-mirror
/
opensbi
mirror of https://review.coreboot.org/opensbi.git
1
0
Fork 0
Code Issues Releases Wiki Activity

platform: generic: allwinner: sun20i-d1: Remove duplicated CSR definitions 

All T-Head CSRs are already defined in thead/c9xx_encoding.h.
Let's reuse the values from there instead of redefining them with
a slightly different name.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Christoph Müllner 2024-03-19 10:26:42 +01:00 committed by Anup Patel
parent 3b2f89e3d6
commit 5186da687d
1 changed files with 9 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
platform/generic/allwinner/sun20i-d1.c
View File

@ -33,15 +33,6 @@
#define RISCV_CFG_BGR_REG 0xd0c
#define PPU_BGR_REG 0x1ac
/*
* CSRs
*/
#define CSR_MXSTATUS 0x7c0
#define CSR_MHCR 0x7c1
#define CSR_MCOR 0x7c2
#define CSR_MHINT 0x7c5
static unsigned long csr_mxstatus;
static unsigned long csr_mhcr;
static unsigned long csr_mhint;
@ -49,24 +40,24 @@ static unsigned long csr_mhint;
static void sun20i_d1_csr_save(void)
{
/* Save custom CSRs. */
csr_mxstatus = csr_read(CSR_MXSTATUS);
csr_mhcr = csr_read(CSR_MHCR);
csr_mhint = csr_read(CSR_MHINT);
csr_mxstatus = csr_read(THEAD_C9XX_CSR_MXSTATUS);
csr_mhcr = csr_read(THEAD_C9XX_CSR_MHCR);
csr_mhint = csr_read(THEAD_C9XX_CSR_MHINT);
/* Flush and disable caches. */
csr_write(CSR_MCOR, 0x22);
csr_write(CSR_MHCR, 0x0);
csr_write(THEAD_C9XX_CSR_MCOR, 0x22);
csr_write(THEAD_C9XX_CSR_MHCR, 0x0);
}
static void sun20i_d1_csr_restore(void)
{
/* Invalidate caches and the branch predictor. */
csr_write(CSR_MCOR, 0x70013);
csr_write(THEAD_C9XX_CSR_MCOR, 0x70013);
/* Restore custom CSRs, including the cache state. */
csr_write(CSR_MXSTATUS, csr_mxstatus);
csr_write(CSR_MHCR, csr_mhcr);
csr_write(CSR_MHINT, csr_mhint);
csr_write(THEAD_C9XX_CSR_MXSTATUS, csr_mxstatus);
csr_write(THEAD_C9XX_CSR_MHCR, csr_mhcr);
csr_write(THEAD_C9XX_CSR_MHINT, csr_mhint);
}
/*