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arm64: zynqmp: Fix issue of apps executing from R5 core 1

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In current implementation, applications can execute only on R5 core 0.
The boot address for R5 core 1 is not supplied. Pass TCM address for
R5 core 1 based on the argument to fix the issue.

Remove incomplete comment.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/da865717d26648ab7a84345ca8749712efdddee5.1680699999.git.michal.simek@amd.com
This commit is contained in:
Ashok Reddy Soma
2023-04-05 15:06:45 +02:00
committed by Michal Simek
parent 9b4d52b2e1
commit 66e8b8128b
1 changed files with 16 additions and 10 deletions
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26
arch/arm/mach-zynqmp/mp.c
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@@ -32,7 +32,8 @@
#define ZYNQMP_CRLAPB_RST_LPD_R51_RST_MASK 0x02
#define ZYNQMP_CRLAPB_CPU_R5_CTRL_CLKACT_MASK 0x1000000
#define ZYNQMP_TCM_START_ADDRESS 0xFFE00000
#define ZYNQMP_R5_0_TCM_START_ADDR 0xFFE00000
#define ZYNQMP_R5_1_TCM_START_ADDR 0xFFE90000
#define ZYNQMP_TCM_BOTH_SIZE 0x40000
#define ZYNQMP_CORE_APU0 0
@@ -215,9 +216,14 @@ static void set_r5_start(u8 high)
writel(tmp, &rpu_base->rpu1_cfg);
}
static void write_tcm_boot_trampoline(u32 boot_addr)
static void write_tcm_boot_trampoline(u32 nr, u32 boot_addr)
{
if (boot_addr) {
u64 tcm_start_addr = ZYNQMP_R5_0_TCM_START_ADDR;
if (nr == ZYNQMP_CORE_RPU1)
tcm_start_addr = ZYNQMP_R5_1_TCM_START_ADDR;
/*
* Boot trampoline is simple ASM code below.
*
@@ -229,12 +235,12 @@ static void write_tcm_boot_trampoline(u32 boot_addr)
* bx r1
*/
debug("Write boot trampoline for %x\n", boot_addr);
writel(0xea000000, ZYNQMP_TCM_START_ADDRESS);
writel(boot_addr, ZYNQMP_TCM_START_ADDRESS + 0x4);
writel(0xe59f0004, ZYNQMP_TCM_START_ADDRESS + 0x8);
writel(0xe5901000, ZYNQMP_TCM_START_ADDRESS + 0xc);
writel(0xe12fff11, ZYNQMP_TCM_START_ADDRESS + 0x10);
writel(0x00000004, ZYNQMP_TCM_START_ADDRESS + 0x14); // address for
writel(0xea000000, tcm_start_addr);
writel(boot_addr, tcm_start_addr + 0x4);
writel(0xe59f0004, tcm_start_addr + 0x8);
writel(0xe5901000, tcm_start_addr + 0xc);
writel(0xe12fff11, tcm_start_addr + 0x10);
writel(0x00000004, tcm_start_addr + 0x14);
}
}
@@ -328,7 +334,7 @@ int cpu_release(u32 nr, int argc, char *const argv[])
enable_clock_r5();
release_r5_reset(nr, LOCK);
dcache_disable();
write_tcm_boot_trampoline(boot_addr_uniq);
write_tcm_boot_trampoline(nr, boot_addr_uniq);
dcache_enable();
set_r5_halt_mode(nr, RELEASE, LOCK);
mark_r5_used(nr, LOCK);
@@ -341,7 +347,7 @@ int cpu_release(u32 nr, int argc, char *const argv[])
enable_clock_r5();
release_r5_reset(nr, SPLIT);
dcache_disable();
write_tcm_boot_trampoline(boot_addr_uniq);
write_tcm_boot_trampoline(nr, boot_addr_uniq);
dcache_enable();
set_r5_halt_mode(nr, RELEASE, SPLIT);
mark_r5_used(nr, SPLIT);