From: Jiaxun Yang <jiaxun.y...@flygoat.com>
Replace embedded binary with generated code.
Signed-off-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
Message-Id: <20210127065424.114125-3-jiaxun.y...@flygoat.com>
[PMD: Pass semihosting_get_argc() to bl_gen_jump_kernel()]
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
hw/mips/malta.c | 43 ++++++++++++-------------------------------
1 file changed, 12 insertions(+), 31 deletions(-)
diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index 0e932988e0..e24572c885 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -35,6 +35,7 @@
#include "hw/i2c/smbus_eeprom.h"
#include "hw/block/flash.h"
#include "hw/mips/mips.h"
+#include "hw/mips/bootloader.h"
#include "hw/mips/cpudevs.h"
#include "hw/pci/pci.h"
#include "qemu/log.h"
@@ -866,30 +867,6 @@ static void write_bootloader(uint8_t *base, uint64_t
run_addr,
/* Second part of the bootloader */
p = (uint32_t *) (base + 0x580);
- if (semihosting_get_argc()) {
- /* Preserve a0 content as arguments have been passed */
- stl_p(p++, 0x00000000); /* nop */
- } else {
- stl_p(p++, 0x24040002); /* addiu a0, zero, 2 */
- }
-
- /* lui sp, high(ENVP_VADDR) */
- stl_p(p++, 0x3c1d0000 | (((ENVP_VADDR - 64) >> 16) & 0xffff));
- /* ori sp, sp, low(ENVP_VADDR) */
- stl_p(p++, 0x37bd0000 | ((ENVP_VADDR - 64) & 0xffff));
- /* lui a1, high(ENVP_VADDR) */
- stl_p(p++, 0x3c050000 | ((ENVP_VADDR >> 16) & 0xffff));
- /* ori a1, a1, low(ENVP_VADDR) */
- stl_p(p++, 0x34a50000 | (ENVP_VADDR & 0xffff));
- /* lui a2, high(ENVP_VADDR + 8) */
- stl_p(p++, 0x3c060000 | (((ENVP_VADDR + 8) >> 16) & 0xffff));
- /* ori a2, a2, low(ENVP_VADDR + 8) */
- stl_p(p++, 0x34c60000 | ((ENVP_VADDR + 8) & 0xffff));
- /* lui a3, high(ram_low_size) */
- stl_p(p++, 0x3c070000 | (loaderparams.ram_low_size >> 16));
- /* ori a3, a3, low(ram_low_size) */
- stl_p(p++, 0x34e70000 | (loaderparams.ram_low_size & 0xffff));
-
/* Load BAR registers as done by YAMON */
stl_p(p++, 0x3c09b400); /* lui t1, 0xb400 */
@@ -941,13 +918,17 @@ static void write_bootloader(uint8_t *base, uint64_t
run_addr,
#endif
stl_p(p++, 0xad280088); /* sw t0, 0x0088(t1) */
- /* Jump to kernel code */
- stl_p(p++, 0x3c1f0000 |
- ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
- stl_p(p++, 0x37ff0000 |
- (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry)
*/
- stl_p(p++, 0x03e00009); /* jalr ra */
- stl_p(p++, 0x00000000); /* nop */
+ bl_gen_jump_kernel(&p,
+ true, ENVP_VADDR - 64,
+ /*
+ * If semihosting is used, arguments have already been
+ * passed, so we preserve $a0.
+ */
+ !semihosting_get_argc(), 2,
+ true, ENVP_VADDR,
+ true, ENVP_VADDR + 8,
+ true, loaderparams.ram_low_size,
+ kernel_entry);
/* YAMON subroutines */
p = (uint32_t *) (base + 0x800);
--
2.37.3
