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From: BALATON Zoltan <balaton@eik.bme.hu>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: clg@kaod.org, Daniel Henrique Barboza <danielhb413@gmail.com>,
	Peter Maydell <peter.maydell@linaro.org>
Subject: [PATCH v5 08/21] ppc4xx_sdram: Drop extra zeros for readability
Date: Sun, 18 Sep 2022 22:24:28 +0200 (CEST)	[thread overview]
Message-ID: <edc0b4d001fca7832a166f3188d6f277cdd2e67e.1663531117.git.balaton@eik.bme.hu> (raw)
In-Reply-To: <cover.1663531117.git.balaton@eik.bme.hu>

Constants that are written zero padded for no good reason are hard to
read, it's easier to see what is meant if it's just 0 or 1 instead.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/ppc/ppc4xx_devs.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c
index 3d700e5c85..02ac8ff335 100644
--- a/hw/ppc/ppc4xx_devs.c
+++ b/hw/ppc/ppc4xx_devs.c
@@ -54,31 +54,31 @@ static uint32_t sdram_ddr_bcr(hwaddr ram_base, hwaddr ram_size)
 
     switch (ram_size) {
     case 4 * MiB:
-        bcr = 0x00000000;
+        bcr = 0;
         break;
     case 8 * MiB:
-        bcr = 0x00020000;
+        bcr = 0x20000;
         break;
     case 16 * MiB:
-        bcr = 0x00040000;
+        bcr = 0x40000;
         break;
     case 32 * MiB:
-        bcr = 0x00060000;
+        bcr = 0x60000;
         break;
     case 64 * MiB:
-        bcr = 0x00080000;
+        bcr = 0x80000;
         break;
     case 128 * MiB:
-        bcr = 0x000A0000;
+        bcr = 0xA0000;
         break;
     case 256 * MiB:
-        bcr = 0x000C0000;
+        bcr = 0xC0000;
         break;
     default:
         qemu_log_mask(LOG_GUEST_ERROR,
                       "%s: invalid RAM size 0x%" HWADDR_PRIx "\n", __func__,
                       ram_size);
-        return 0x00000000;
+        return 0;
     }
     bcr |= ram_base & 0xFF800000;
     bcr |= 1;
@@ -109,7 +109,7 @@ static target_ulong sdram_size(uint32_t bcr)
 static void sdram_set_bcr(Ppc4xxSdramDdrState *sdram, int i,
                           uint32_t bcr, int enabled)
 {
-    if (sdram->bank[i].bcr & 0x00000001) {
+    if (sdram->bank[i].bcr & 1) {
         /* Unmap RAM */
         trace_ppc4xx_sdram_unmap(sdram_base(sdram->bank[i].bcr),
                                  sdram_size(sdram->bank[i].bcr));
@@ -120,7 +120,7 @@ static void sdram_set_bcr(Ppc4xxSdramDdrState *sdram, int i,
         object_unparent(OBJECT(&sdram->bank[i].container));
     }
     sdram->bank[i].bcr = bcr & 0xFFDEE001;
-    if (enabled && (bcr & 0x00000001)) {
+    if (enabled && (bcr & 1)) {
         trace_ppc4xx_sdram_map(sdram_base(bcr), sdram_size(bcr));
         memory_region_init(&sdram->bank[i].container, NULL, "sdram-container",
                            sdram_size(bcr));
@@ -141,7 +141,7 @@ static void sdram_map_bcr(Ppc4xxSdramDdrState *sdram)
             sdram_set_bcr(sdram, i, sdram_ddr_bcr(sdram->bank[i].base,
                                                   sdram->bank[i].size), 1);
         } else {
-            sdram_set_bcr(sdram, i, 0x00000000, 0);
+            sdram_set_bcr(sdram, i, 0, 0);
         }
     }
 }
@@ -218,7 +218,7 @@ static uint32_t sdram_ddr_dcr_read(void *opaque, int dcrn)
         break;
     default:
         /* Avoid gcc warning */
-        ret = 0x00000000;
+        ret = 0;
         break;
     }
 
@@ -311,18 +311,18 @@ static void ppc4xx_sdram_ddr_reset(DeviceState *dev)
 {
     Ppc4xxSdramDdrState *sdram = PPC4xx_SDRAM_DDR(dev);
 
-    sdram->addr = 0x00000000;
-    sdram->bear = 0x00000000;
-    sdram->besr0 = 0x00000000; /* No error */
-    sdram->besr1 = 0x00000000; /* No error */
-    sdram->cfg = 0x00000000;
-    sdram->ecccfg = 0x00000000; /* No ECC */
-    sdram->eccesr = 0x00000000; /* No error */
+    sdram->addr = 0;
+    sdram->bear = 0;
+    sdram->besr0 = 0; /* No error */
+    sdram->besr1 = 0; /* No error */
+    sdram->cfg = 0;
+    sdram->ecccfg = 0; /* No ECC */
+    sdram->eccesr = 0; /* No error */
     sdram->pmit = 0x07C00000;
     sdram->rtr = 0x05F00000;
     sdram->tr = 0x00854009;
     /* We pre-initialize RAM banks */
-    sdram->status = 0x00000000;
+    sdram->status = 0;
     sdram->cfg = 0x00800000;
 }
 
-- 
2.30.4



  parent reply	other threads:[~2022-09-18 20:31 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-18 20:24 [PATCH v5 00/21] ppc4xx_sdram QOMify and clean ups BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 01/21] ppc440_bamboo: Remove unnecessary memsets BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 02/21] ppc4xx: Introduce Ppc4xxSdramBank struct BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 03/21] ppc4xx_sdram: Get rid of the init RAM hack BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 04/21] ppc4xx: Use Ppc4xxSdramBank in ppc4xx_sdram_banks() BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 05/21] ppc440_bamboo: Add missing 4 MiB valid memory size BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 06/21] ppc4xx_sdram: Move size check to ppc4xx_sdram_init() BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 07/21] ppc4xx_sdram: QOM'ify BALATON Zoltan
2022-09-18 20:24 ` BALATON Zoltan [this message]
2022-09-18 20:24 ` [PATCH v5 09/21] ppc440_sdram: Split off map/unmap of sdram banks for later reuse BALATON Zoltan
2022-09-18 20:35   ` Philippe Mathieu-Daudé via
2022-09-18 20:24 ` [PATCH v5 10/21] ppc440_sdram: Implement enable bit in the DDR2 SDRAM BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 11/21] ppc440_sdram: Get rid of the init RAM hack BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 12/21] ppc440_sdram: Rename local variable for readability BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 13/21] ppc4xx_sdram: Rename functions to prevent name clashes BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 14/21] ppc440_sdram: Move RAM size check to ppc440_sdram_init BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 15/21] ppc440_sdram: QOM'ify BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 16/21] ppc4xx_sdram: Move ppc4xx DDR and DDR2 SDRAM controller models together BALATON Zoltan
2022-09-18 21:02   ` Philippe Mathieu-Daudé via
2022-09-18 21:24     ` BALATON Zoltan
2022-09-18 21:36       ` Philippe Mathieu-Daudé via
2022-09-18 20:24 ` [PATCH v5 17/21] ppc4xx_sdram: Use hwaddr for memory bank size BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 18/21] ppc4xx_sdram: Rename local state variable for brevity BALATON Zoltan
2022-09-18 20:51   ` Philippe Mathieu-Daudé via
2022-09-18 20:24 ` [PATCH v5 19/21] ppc4xx_sdram: Generalise bank setup BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 20/21] ppc4xx_sdram: Convert DDR SDRAM controller to new bank handling BALATON Zoltan
2022-09-18 20:24 ` [PATCH v5 21/21] ppc4xx_sdram: Add errp parameter to ppc4xx_sdram_banks() BALATON Zoltan
2022-09-18 20:33 ` [PATCH v5 00/21] ppc4xx_sdram QOMify and clean ups Philippe Mathieu-Daudé via

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