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authorPhilippe Mathieu-Daudé <philmd@linaro.org>2022-12-11 18:47:21 +0100
committerPhilippe Mathieu-Daudé <philmd@linaro.org>2023-01-13 09:32:32 +0100
commit3265f41fc7d988276c672e4bdc46ae60713f141c (patch)
tree7a54d52d91eccefe6c09aed75fca8fc1b0c2680d
parent02e0bec464ff3086446d4ad938e301bd85e57d89 (diff)
downloadfocaccia-qemu-3265f41fc7d988276c672e4bdc46ae60713f141c.tar.gz
focaccia-qemu-3265f41fc7d988276c672e4bdc46ae60713f141c.zip
hw/mips/malta: Use bootloader generator API for nanoMIPS CPUs (4/5)
Part 4/5: Convert GT64120 ISD base address setup

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221211204533.85359-10-philmd@linaro.org>
-rw-r--r--hw/mips/malta.c40
1 files changed, 7 insertions, 33 deletions
diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index f0ed32167f..e618513e35 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -689,46 +689,20 @@ static void write_bootloader_nanomips(uint8_t *base, uint64_t run_addr,
     stw_p(p++, 0x80e7); stw_p(p++, NM_LO(loaderparams.ram_low_size));
                                 /* ori a3,a3,%lo(loaderparams.ram_low_size) */
 
-    /*
-     * Load BAR registers as done by YAMON:
-     */
-    stw_p(p++, 0xe040); stw_p(p++, 0x0681);
-                                /* lui t1, %hi(0xb4000000)      */
-
 #if TARGET_BIG_ENDIAN
 #define cpu_to_gt32 cpu_to_le32
-
-    stw_p(p++, 0xe020); stw_p(p++, 0x0be1);
-                                /* lui t0, %hi(0xdf000000)      */
-
-    /* 0x68 corresponds to GT_ISD (from hw/mips/gt64xxx_pci.c)  */
-    stw_p(p++, 0x8422); stw_p(p++, 0x9068);
-                                /* sw t0, 0x68(t1)              */
-
-    stw_p(p++, 0xe040); stw_p(p++, 0x077d);
-                                /* lui t1, %hi(0xbbe00000)      */
-
-    stw_p(p++, 0xe020); stw_p(p++, 0x0801);
-                                /* lui t0, %hi(0xc0000000)      */
 #else
 #define cpu_to_gt32 cpu_to_be32
-
-    stw_p(p++, 0x0020); stw_p(p++, 0x00df);
-                                /* addiu[32] t0, $0, 0xdf       */
-
-    /* 0x68 corresponds to GT_ISD                               */
-    stw_p(p++, 0x8422); stw_p(p++, 0x9068);
-                                /* sw t0, 0x68(t1)              */
-
-    /* Use kseg2 remapped address 0x1be00000                    */
-    stw_p(p++, 0xe040); stw_p(p++, 0x077d);
-                                /* lui t1, %hi(0xbbe00000)      */
-
-    stw_p(p++, 0x0020); stw_p(p++, 0x00c0);
-                                /* addiu[32] t0, $0, 0xc0       */
 #endif
     v = p;
 
+    /* setup MEM-to-PCI0 mapping as done by YAMON */
+
+    /* move GT64120 registers from 0x14000000 to 0x1be00000 */
+    bl_gen_write_u32(&v, /* GT_ISD */
+                     cpu_mips_phys_to_kseg1(NULL, 0x14000000 + 0x68),
+                     cpu_to_gt32(0x1be00000 << 3));
+
     /* setup PCI0 io window to 0x18000000-0x181fffff */
     bl_gen_write_u32(&v, /* GT_PCI0IOLD */
                      cpu_mips_phys_to_kseg1(NULL, 0x1be00000 + 0x48),