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Mon, 7 Dec 2020 05:03:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=mymailcheap.com; s=default; t=1607317424; bh=vat0YG0Ko72WZjJSiCXittmkMV6Bshp7q44AfzVmbTE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a3G/k1M9EXhATgIAfPSY6ijkqtsCx5F13uuZla0xEa/wl/OsaMoUZYNBWxRfB/RQr 5U4QymZd112k1WlVcjKUVyOXpHTAiObB1nmrzc9+WVJgluZMd850vO8miG4t1Va+s4 b17+HeQ+PoU0ai6R+8XZilfwy7Q8XnGVFZXj4wlg= X-Virus-Scanned: Debian amavisd-new at filter2.mymailcheap.com Authentication-Results: mail20.mymailcheap.com; dkim=pass (1024-bit key; unprotected) header.d=flygoat.com header.i=@flygoat.com header.b="bIEbQ8sN"; dkim-atps=neutral AI-Spam-Status: Not processed DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=flygoat.com; s=default; t=1607317402; bh=vat0YG0Ko72WZjJSiCXittmkMV6Bshp7q44AfzVmbTE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bIEbQ8sNBDsRM7V0RA2U2hiUtXWdDNfN3OwZa3oTVYKOx9aVBRewb8LzyrRwJnC6b eu+TrkzcHcYEp/GBuFX6yWE6C7tk961MgQ28HYYpBd6eoPdVL9g2SiO41eGJMJvxs6 XObHguoMw/yzzW/i5/Hlf7QJ849yx5AxlztYDDCk= From: Jiaxun Yang To: qemu-devel@nongnu.org Subject: [PATCH 2/5] hw/mips/malta: Make use of bootloader helper Date: Mon, 7 Dec 2020 13:02:28 +0800 Message-Id: <20201207050231.2712-3-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201207050231.2712-1-jiaxun.yang@flygoat.com> References: <20201207050231.2712-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: E27CD4226B X-Spamd-Result: default: False [4.90 / 10.00]; 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helo=relay4.mymailcheap.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: chenhuacai@kernel.org, f4bug@amsat.org, paulburton@kernel.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (found 2 invalid signatures) Content-Type: text/plain; charset="utf-8" Use bootloader helper to generate BAR setting code and kernel jump. Signed-off-by: Jiaxun Yang --- hw/mips/malta.c | 108 ++++++++++++------------------------------------ 1 file changed, 26 insertions(+), 82 deletions(-) diff --git a/hw/mips/malta.c b/hw/mips/malta.c index 9d1a3b50b7..e9767e8744 100644 --- a/hw/mips/malta.c +++ b/hw/mips/malta.c @@ -841,14 +841,12 @@ static void write_bootloader_nanomips(uint8_t *base, = int64_t run_addr, static void write_bootloader(uint8_t *base, int64_t run_addr, int64_t kernel_entry) { - uint32_t *p; + uint32_t *p, a0; =20 /* Small bootloader */ p =3D (uint32_t *)base; =20 - stl_p(p++, 0x08000000 | /* j 0x1fc00580 */ - ((run_addr + 0x580) & 0x0fffffff) >> 2); - stl_p(p++, 0x00000000); /* nop */ + bl_gen_jump_to(&p, run_addr + 0x580); =20 /* YAMON service vector */ stl_p(base + 0x500, run_addr + 0x0580); /* start: */ @@ -869,88 +867,34 @@ static void write_bootloader(uint8_t *base, int64_t r= un_addr, /* Second part of the bootloader */ p =3D (uint32_t *) (base + 0x580); =20 - 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_ADDR) */ - stl_p(p++, 0x3c1d0000 | (((ENVP_ADDR - 64) >> 16) & 0xffff)); - /* ori sp, sp, low(ENVP_ADDR) */ - stl_p(p++, 0x37bd0000 | ((ENVP_ADDR - 64) & 0xffff)); - /* lui a1, high(ENVP_ADDR) */ - stl_p(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); - /* ori a1, a1, low(ENVP_ADDR) */ - stl_p(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); - /* lui a2, high(ENVP_ADDR + 8) */ - stl_p(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); - /* ori a2, a2, low(ENVP_ADDR + 8) */ - stl_p(p++, 0x34c60000 | ((ENVP_ADDR + 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 */ - -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c08df00); /* lui t0, 0xdf00 */ -#else - stl_p(p++, 0x340800df); /* ori t0, r0, 0x00df */ -#endif - stl_p(p++, 0xad280068); /* sw t0, 0x0068(t1) */ - - stl_p(p++, 0x3c09bbe0); /* lui t1, 0xbbe0 */ - -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c08c000); /* lui t0, 0xc000 */ -#else - stl_p(p++, 0x340800c0); /* ori t0, r0, 0x00c0 */ -#endif - stl_p(p++, 0xad280048); /* sw t0, 0x0048(t1) */ -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c084000); /* lui t0, 0x4000 */ -#else - stl_p(p++, 0x34080040); /* ori t0, r0, 0x0040 */ -#endif - stl_p(p++, 0xad280050); /* sw t0, 0x0050(t1) */ - -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c088000); /* lui t0, 0x8000 */ -#else - stl_p(p++, 0x34080080); /* ori t0, r0, 0x0080 */ -#endif - stl_p(p++, 0xad280058); /* sw t0, 0x0058(t1) */ -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c083f00); /* lui t0, 0x3f00 */ -#else - stl_p(p++, 0x3408003f); /* ori t0, r0, 0x003f */ -#endif - stl_p(p++, 0xad280060); /* sw t0, 0x0060(t1) */ - + /* GT64xxxx is always big endian */ #ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c08c100); /* lui t0, 0xc100 */ +#define cpu_to_gt32(x) cpu_to_le32(x) #else - stl_p(p++, 0x340800c1); /* ori t0, r0, 0x00c1 */ +#define cpu_to_gt32(x) cpu_to_be32(x) #endif - stl_p(p++, 0xad280080); /* sw t0, 0x0080(t1) */ -#ifdef TARGET_WORDS_BIGENDIAN - stl_p(p++, 0x3c085e00); /* lui t0, 0x5e00 */ -#else - stl_p(p++, 0x3408005e); /* ori t0, r0, 0x005e */ -#endif - stl_p(p++, 0xad280088); /* sw t0, 0x0088(t1) */ + /* Load BAR registers as done by YAMON */ + /* move GT64120 registers from 0x14000000 to 0x1be00000 */ + bl_gen_writel(&p, cpu_to_gt32(0xdf000000), 0xb4000068); + + /* setup MEM-to-PCI0 mapping */ + /* setup PCI0 io window to 0x18000000-0x181fffff */ + bl_gen_writel(&p, cpu_to_gt32(0xc0000000), 0xbbe00048); + bl_gen_writel(&p, cpu_to_gt32(0x40000000), 0xbbe00050); + /* setup PCI0 mem windows */ + bl_gen_writel(&p, cpu_to_gt32(0x80000000), 0xbbe00058); + bl_gen_writel(&p, cpu_to_gt32(0x3f000000), 0xbbe00060); + bl_gen_writel(&p, cpu_to_gt32(0xc1000000), 0xbbe00080); + bl_gen_writel(&p, cpu_to_gt32(0x5e000000), 0xbbe00088); +#undef cpu_to_gt32 =20 - /* 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_ent= ry) */ - stl_p(p++, 0x03e00009); /* jalr ra */ - stl_p(p++, 0x00000000); /* nop */ + if (semihosting_get_argc()) { + a0 =3D 0; + } else { + a0 =3D 2; + } + bl_gen_jump_kernel(&p, ENVP_ADDR - 64, a0, ENVP_ADDR, (ENVP_ADDR + 8), + loaderparams.ram_low_size, kernel_entry); =20 /* YAMON subroutines */ p =3D (uint32_t *) (base + 0x800); --=20 2.29.2