From 014137bf60fc5804b6759cd0879c6a374dbce26e Mon Sep 17 00:00:00 2001
From: Robert Sprowson <rsprowson@gitlab.riscosopen.org>
Date: Thu, 15 Aug 2013 13:39:58 +0000
Subject: [PATCH] Create placeholder NVMemory HAL device when EEPROM detected
The HAL device created is merely a dummy one, but presents any EEPROM detected for completeness of stuff the HAL knows about.
Version 0.87. Tagged as 'OMAP3-0_87'
---
VersionASM | 12 ++++----
VersionNum | 20 +++++++-------
hdr/StaticWS | 1 +
s/Boot | 6 +---
s/NVMemory | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++--
5 files changed, 93 insertions(+), 24 deletions(-)
diff --git a/VersionASM b/VersionASM
index 88b9812..0f01dd2 100644
--- a/VersionASM
+++ b/VersionASM
@@ -11,13 +11,13 @@
GBLS Module_HelpVersion
GBLS Module_ComponentName
GBLS Module_ComponentPath
-Module_MajorVersion SETS "0.86"
-Module_Version SETA 86
+Module_MajorVersion SETS "0.87"
+Module_Version SETA 87
Module_MinorVersion SETS ""
-Module_Date SETS "21 Feb 2013"
-Module_ApplicationDate SETS "21-Feb-13"
+Module_Date SETS "15 Aug 2013"
+Module_ApplicationDate SETS "15-Aug-13"
Module_ComponentName SETS "OMAP3"
Module_ComponentPath SETS "castle/RiscOS/Sources/HAL/OMAP3"
-Module_FullVersion SETS "0.86"
-Module_HelpVersion SETS "0.86 (21 Feb 2013)"
+Module_FullVersion SETS "0.87"
+Module_HelpVersion SETS "0.87 (15 Aug 2013)"
END
diff --git a/VersionNum b/VersionNum
index f9e54b6..30e3da4 100644
--- a/VersionNum
+++ b/VersionNum
@@ -1,23 +1,23 @@
-/* (0.86)
+/* (0.87)
*
* This file is automatically maintained by srccommit, do not edit manually.
* Last processed by srccommit version: 1.1.
*
*/
-#define Module_MajorVersion_CMHG 0.86
+#define Module_MajorVersion_CMHG 0.87
#define Module_MinorVersion_CMHG
-#define Module_Date_CMHG 21 Feb 2013
+#define Module_Date_CMHG 15 Aug 2013
-#define Module_MajorVersion "0.86"
-#define Module_Version 86
+#define Module_MajorVersion "0.87"
+#define Module_Version 87
#define Module_MinorVersion ""
-#define Module_Date "21 Feb 2013"
+#define Module_Date "15 Aug 2013"
-#define Module_ApplicationDate "21-Feb-13"
+#define Module_ApplicationDate "15-Aug-13"
#define Module_ComponentName "OMAP3"
#define Module_ComponentPath "castle/RiscOS/Sources/HAL/OMAP3"
-#define Module_FullVersion "0.86"
-#define Module_HelpVersion "0.86 (21 Feb 2013)"
-#define Module_LibraryVersionInfo "0:86"
+#define Module_FullVersion "0.87"
+#define Module_HelpVersion "0.87 (15 Aug 2013)"
+#define Module_LibraryVersionInfo "0:87"
diff --git a/hdr/StaticWS b/hdr/StaticWS
index 4c65726..a744c19 100644
--- a/hdr/StaticWS
+++ b/hdr/StaticWS
@@ -110,6 +110,7 @@ AudioWS # Audio_WorkspaceSize
NICWS # NIC_DeviceSize
CPUClkWS # CPUClk_WorkspaceSize
GPIOWS # HALDevice_GPIO_Size
+NVRAMWS # HALDeviceSize
SDIOWS # SDHCISize * MaxSDControllers
BMUWS1 # BMUSize
diff --git a/s/Boot b/s/Boot
index db6f2c7..5644b17 100644
--- a/s/Boot
+++ b/s/Boot
@@ -604,11 +604,6 @@ Board_Init_IGEPv2
]
BL USB_Init ; Uses GPTIMER2
- [ MoreDebug
- DebugTX "NVMemory_Init"
- ]
- BL NVMemory_Init ; Uses GPTIMER2
-
[ MoreDebug
DebugTX "Timer_Init"
]
@@ -907,6 +902,7 @@ HAL_InitDevices
DebugTime a1, "HAL_InitDevices @ "
; Common HAL devices
BL CPUClk_Init
+ BL NVMemory_Init
BL RTC_Init
BL SDMA_Init
BL VideoDevice_Init
diff --git a/s/NVMemory b/s/NVMemory
index a0f036f..5e0e3ac 100644
--- a/s/NVMemory
+++ b/s/NVMemory
@@ -33,6 +33,7 @@
EXPORT HAL_NVMemoryRead
EXPORT HAL_NVMemoryWrite
+ IMPORT memcpy
IMPORT HAL_CounterDelay
; Autodetect the EEPROM at runtime in the range 2kbit to 16kbit
@@ -212,7 +213,6 @@ NVMemory_Init
GPIO_SetAsOutput a1, a2, a4
GPIO_SetAsInput a1, a3, a4
-
MOV a1, #0
BL NVMemory_BGet
05
@@ -262,7 +262,7 @@ NVMemory_Init
30
]
STR v3, NVMemoryFound
- [ TryLoadedCMOS
+ [ TryLoadedCMOS
TEQ v3, #0
BNE %FT50
@@ -299,7 +299,12 @@ NVMemory_Init
SUBS v1, v1, #1
BNE %BT45
50
- ]
+ ]
+ ; If some was found, create a placeholder HAL device
+ LDR a1, NVMemoryFound
+ TEQ a1, #0
+ BLNE NVMemory_AddDevice
+
Pull "v1-v3, pc"
NVMemory_Barrel16
@@ -325,6 +330,73 @@ NVMemory_Barrel16
Pull "v1-v2, pc"
+NVMemory_AddDevice
+ ; void NVMemory_AddDevice(uint32_t bytesize)
+ Push "a1, lr"
+
+ ; Copy over template
+ ADRL a1, NVRAMWS
+ ADR a2, NVMemory_AddDevice_Template
+ MOV a3, #HALDeviceSize
+ BL memcpy
+
+ ; Map 256/512/1024/2048 to table index 0/1/2/3
+ MOV a2, a1
+ Pull "a3, lr"
+ CLZ a1, a3
+ RSB a1, a1, #31 - 8
+
+ ADR a4, NVMemory_AddDevice_IDs
+ MOV a3, a1, LSL #1
+ LDRH a3, [a4, a3]
+ STRH a3, [a2, #HALDevice_ID]
+
+ ADR a4, NVMemory_AddDevice_Descs
+ MOV a3, #1 + :LEN:"24Cxx EEPROM"
+ MLA a3, a3, a1, a4
+ STR a3, [a2, #HALDevice_Description]
+
+ ; Tail call the OS to add it
+ MOV a1, #0
+ LDR pc, OSentries + 4*OS_AddDevice
+
+NVMemory_AddDevice_Template
+ DCW HALDeviceType_SysPeri + HALDeviceSysPeri_NVRAM
+ DCW &1234 ; ID filled at runtime
+ DCD HALDeviceBus_Ser + HALDeviceSerBus_IIC
+ DCD 0 ; API version 0
+ DCD &12345678 ; Description filled at runtime
+ DCD 0 ; Address - N/A
+ % 12 ; Reserved
+ DCD NVMemory_AddDevice_Activate
+ DCD NVMemory_AddDevice_Deactivate
+ DCD NVMemory_AddDevice_Reset
+ DCD NVMemory_AddDevice_Sleep
+ DCD -1
+ DCD 0
+ % 8
+ ASSERT (. - NVMemory_AddDevice_Template) = HALDeviceSize
+
+NVMemory_AddDevice_Activate
+ MOV a1, #1
+ MOV pc, lr
+NVMemory_AddDevice_Sleep
+ MOV a1, #0
+NVMemory_AddDevice_Deactivate
+NVMemory_AddDevice_Reset
+ MOV pc, lr
+NVMemory_AddDevice_IDs
+ DCW HALDeviceID_NVRAM_24C02
+ DCW HALDeviceID_NVRAM_24C04
+ DCW HALDeviceID_NVRAM_24C08
+ DCW HALDeviceID_NVRAM_24C16
+NVMemory_AddDevice_Descs
+ DCB "24C02 EEPROM", 0
+ DCB "24C04 EEPROM", 0
+ DCB "24C08 EEPROM", 0
+ DCB "24C16 EEPROM", 0
+ ALIGN
+
NVMemory_BGet
; int32_t NVMemory_BGet(uint32_t loc)
; Returns -1 if no ACK otherwise the byte read
--
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