[U-Boot] [PATCH 3/3] mx35: Clean up lowlevel_init
Benoît Thébaudeau
benoit.thebaudeau at advansee.com
Tue Aug 14 23:04:10 CEST 2012
Clean up mx35 lowlevel_init:
- Indent with tabs.
- Fix comments.
- Use defined values instead of literal constants.
- Use defined macros instead of duplicating code.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
Cc: Stefano Babic <sbabic at denx.de>
---
.../arm/include/asm/arch-mx35/lowlevel_macro.S | 153 ++++++++------------
.../board/CarMediaLab/flea3/lowlevel_init.S | 19 +--
.../board/freescale/mx35pdk/lowlevel_init.S | 119 +--------------
.../board/freescale/mx35pdk/mx35pdk.h | 14 +-
4 files changed, 78 insertions(+), 227 deletions(-)
diff --git u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx35/lowlevel_macro.S u-boot-4d3c95f/arch/arm/include/asm/arch-mx35/lowlevel_macro.S
index 05aa951..9d7c133 100644
--- u-boot-4d3c95f.orig/arch/arm/include/asm/arch-mx35/lowlevel_macro.S
+++ u-boot-4d3c95f/arch/arm/include/asm/arch-mx35/lowlevel_macro.S
@@ -19,122 +19,93 @@
* MA 02111-1307 USA
*/
+#include <asm/arch/imx-regs.h>
+#include <generated/asm-offsets.h>
+#include <asm/macro.h>
+
/*
* AIPS setup - Only setup MPROTx registers.
* The PACR default values are good.
*/
.macro init_aips
- /*
- * Set all MPROTx to be non-bufferable, trusted for R/W,
- * not forced to user-mode.
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_MPR_CONFIG
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
+ ldr r0, =AIPS1_BASE_ADDR
+ ldr r1, =AIPS_MPR_CONFIG
+ str r1, [r0, #AIPS_MPR_0_7]
+ str r1, [r0, #AIPS_MPR_8_15]
+ ldr r2, =AIPS2_BASE_ADDR
+ str r1, [r2, #AIPS_MPR_0_7]
+ str r1, [r2, #AIPS_MPR_8_15]
- /*
- * Clear the on and off peripheral modules Supervisor Protect bit
- * for SDMA to access them. Did not change the AIPS control registers
- * (offset 0x20) access type
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_OPACR_CONFIG
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
+ /* Did not change the AIPS control registers access type. */
+ ldr r1, =AIPS_OPACR_CONFIG
+ str r1, [r0, #AIPS_OPACR_0_7]
+ str r1, [r0, #AIPS_OPACR_8_15]
+ str r1, [r0, #AIPS_OPACR_16_23]
+ str r1, [r0, #AIPS_OPACR_24_31]
+ str r1, [r0, #AIPS_OPACR_32_39]
+ str r1, [r2, #AIPS_OPACR_0_7]
+ str r1, [r2, #AIPS_OPACR_8_15]
+ str r1, [r2, #AIPS_OPACR_16_23]
+ str r1, [r2, #AIPS_OPACR_24_31]
+ str r1, [r2, #AIPS_OPACR_32_39]
.endm
/* MAX (Multi-Layer AHB Crossbar Switch) setup */
.macro init_max
- ldr r0, =MAX_BASE_ADDR
- /* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
- ldr r1, =MAX_MPR_CONFIG
- str r1, [r0, #0x000] /* for S0 */
- str r1, [r0, #0x100] /* for S1 */
- str r1, [r0, #0x200] /* for S2 */
- str r1, [r0, #0x300] /* for S3 */
- str r1, [r0, #0x400] /* for S4 */
- /* SGPCR - always park on last master */
- ldr r1, =MAX_SGPCR_CONFIG
- str r1, [r0, #0x010] /* for S0 */
- str r1, [r0, #0x110] /* for S1 */
- str r1, [r0, #0x210] /* for S2 */
- str r1, [r0, #0x310] /* for S3 */
- str r1, [r0, #0x410] /* for S4 */
- /* MGPCR - restore default values */
- ldr r1, =MAX_MGPCR_CONFIG
- str r1, [r0, #0x800] /* for M0 */
- str r1, [r0, #0x900] /* for M1 */
- str r1, [r0, #0xA00] /* for M2 */
- str r1, [r0, #0xB00] /* for M3 */
- str r1, [r0, #0xC00] /* for M4 */
- str r1, [r0, #0xD00] /* for M5 */
+ ldr r0, =MAX_BASE_ADDR
+ ldr r1, =MAX_MPR_CONFIG
+ str r1, [r0, #MAX_MPR0] /* for S0 */
+ str r1, [r0, #MAX_MPR1] /* for S1 */
+ str r1, [r0, #MAX_MPR2] /* for S2 */
+ str r1, [r0, #MAX_MPR3] /* for S3 */
+ str r1, [r0, #MAX_MPR4] /* for S4 */
+ ldr r1, =MAX_SGPCR_CONFIG
+ str r1, [r0, #MAX_SGPCR0] /* for S0 */
+ str r1, [r0, #MAX_SGPCR1] /* for S1 */
+ str r1, [r0, #MAX_SGPCR2] /* for S2 */
+ str r1, [r0, #MAX_SGPCR3] /* for S3 */
+ str r1, [r0, #MAX_SGPCR4] /* for S4 */
+ ldr r1, =MAX_MGPCR_CONFIG
+ str r1, [r0, #MAX_MGPCR0] /* for M0 */
+ str r1, [r0, #MAX_MGPCR1] /* for M1 */
+ str r1, [r0, #MAX_MGPCR2] /* for M2 */
+ str r1, [r0, #MAX_MGPCR3] /* for M3 */
+ str r1, [r0, #MAX_MGPCR4] /* for M4 */
+ str r1, [r0, #MAX_MGPCR5] /* for M5 */
.endm
/* M3IF setup */
.macro init_m3if
- /* Configure M3IF registers */
- ldr r1, =M3IF_BASE_ADDR
- /*
- * M3IF Control Register (M3IFCTL)
- * MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
- * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
- * MRRP[2] = MBX not on priority list (0 << 0) = 0x00000000
- * MRRP[3] = MAX1 not on priority list (0 << 0) = 0x00000000
- * MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
- * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
- * MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
- * MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
- * ------------
- * 0x00000040
- */
- ldr r0, =M3IF_CONFIG
- str r0, [r1] /* M3IF control reg */
+ /* M3IF Control Register (M3IFCTL) */
+ write32 M3IF_BASE_ADDR, M3IFCTL_CONFIG
.endm
.macro core_init
- mrc 15, 0, r1, c1, c0, 0
+ mrc p15, 0, r1, c1, c0, 0
- mrc 15, 0, r0, c1, c0, 1
- orr r0, r0, #7
- mcr 15, 0, r0, c1, c0, 1
- orr r1, r1, #(1<<11)
+ /* Set branch prediction enable */
+ mrc p15, 0, r0, c1, c0, 1
+ orr r0, r0, #7
+ mcr p15, 0, r0, c1, c0, 1
+ orr r1, r1, #1 << 11
/* Set unaligned access enable */
- orr r1, r1, #(1<<22)
+ orr r1, r1, #1 << 22
/* Set low int latency enable */
- orr r1, r1, #(1<<21)
+ orr r1, r1, #1 << 21
- mcr 15, 0, r1, c1, c0, 0
+ mcr p15, 0, r1, c1, c0, 0
- mov r0, #0
+ mov r0, #0
- /* Set branch prediction enable */
- mcr 15, 0, r0, c15, c2, 4
+ mcr p15, 0, r0, c15, c2, 4
- mcr 15, 0, r0, c7, c7, 0 /* invalidate I cache and D cache */
- mcr 15, 0, r0, c8, c7, 0 /* invalidate TLBs */
- mcr 15, 0, r0, c7, c10, 4 /* Drain the write buffer */
+ mcr p15, 0, r0, c7, c7, 0 /* Invalidate I cache and D cache */
+ mcr p15, 0, r0, c8, c7, 0 /* Invalidate TLBs */
+ mcr p15, 0, r0, c7, c10, 4 /* Drain the write buffer */
- /*
- * initializes very early AIPS
- * Then it also initializes Multi-Layer AHB Crossbar Switch,
- * M3IF
- * Also setup the Peripheral Port Remap register inside the core
- */
- ldr r0, =0x40000015 /* start from AIPS 2GB region */
- mcr p15, 0, r0, c15, c2, 4
+ /* Setup the Peripheral Port Memory Remap Register */
+ ldr r0, =0x40000015 /* Start from AIPS 2-GB region */
+ mcr p15, 0, r0, c15, c2, 4
.endm
diff --git u-boot-4d3c95f.orig/board/CarMediaLab/flea3/lowlevel_init.S u-boot-4d3c95f/board/CarMediaLab/flea3/lowlevel_init.S
index 2f42fc9..e7e5cd7 100644
--- u-boot-4d3c95f.orig/board/CarMediaLab/flea3/lowlevel_init.S
+++ u-boot-4d3c95f/board/CarMediaLab/flea3/lowlevel_init.S
@@ -22,9 +22,6 @@
*/
#include <config.h>
-#include <asm-offsets.h>
-#include <asm/arch/imx-regs.h>
-#include <generated/asm-offsets.h>
/*
* Configuration for the flea3 board.
@@ -46,19 +43,17 @@
/*
* M3IF Control Register (M3IFCTL)
* MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
- * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
- * MRRP[2] = MBX not on priority list (0 << 0) = 0x00000000
- * MRRP[3] = MAX1 not on priority list (0 << 0) = 0x00000000
- * MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
- * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
+ * MRRP[1] = L2CC1 not on priority list (0 << 1) = 0x00000000
+ * MRRP[2] = MBX not on priority list (0 << 2) = 0x00000000
+ * MRRP[3] = MAX1 not on priority list (0 << 3) = 0x00000000
+ * MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000
+ * MRRP[5] = MPEG4 not on priority list (0 << 5) = 0x00000000
* MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
- * MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
+ * MRRP[7] = IPU2 not on priority list (0 << 7) = 0x00000000
* ------------
* 0x00000040
*/
-#define M3IF_CONFIG 0x00000040
-
-#define CCM_PDR0_CONFIG 0x00801000
+#define M3IFCTL_CONFIG 0x00000040
/*
* includes MX35 utility macros
diff --git u-boot-4d3c95f.orig/board/freescale/mx35pdk/lowlevel_init.S u-boot-4d3c95f/board/freescale/mx35pdk/lowlevel_init.S
index 698c4cf..75bb958 100644
--- u-boot-4d3c95f.orig/board/freescale/mx35pdk/lowlevel_init.S
+++ u-boot-4d3c95f/board/freescale/mx35pdk/lowlevel_init.S
@@ -23,6 +23,7 @@
#include <asm/arch/imx-regs.h>
#include <generated/asm-offsets.h>
#include "mx35pdk.h"
+#include <asm/arch/lowlevel_macro.S>
/*
* return soc version
@@ -40,91 +41,6 @@
addne \ret, \ret, #0x10
.endm
-/*
- * AIPS setup - Only setup MPROTx registers.
- * The PACR default values are good.
- */
-.macro init_aips
- /*
- * Set all MPROTx to be non-bufferable, trusted for R/W,
- * not forced to user-mode.
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_MPR_CONFIG
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x00]
- str r1, [r0, #0x04]
-
- /*
- * Clear the on and off peripheral modules Supervisor Protect bit
- * for SDMA to access them. Did not change the AIPS control registers
- * (offset 0x20) access type
- */
- ldr r0, =AIPS1_BASE_ADDR
- ldr r1, =AIPS_OPACR_CONFIG
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
- ldr r0, =AIPS2_BASE_ADDR
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
-.endm
-
-/* MAX (Multi-Layer AHB Crossbar Switch) setup */
-.macro init_max
- ldr r0, =MAX_BASE_ADDR
- /* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
- ldr r1, =MAX_MPR_CONFIG
- str r1, [r0, #0x000] /* for S0 */
- str r1, [r0, #0x100] /* for S1 */
- str r1, [r0, #0x200] /* for S2 */
- str r1, [r0, #0x300] /* for S3 */
- str r1, [r0, #0x400] /* for S4 */
- /* SGPCR - always park on last master */
- ldr r1, =MAX_SGPCR_CONFIG
- str r1, [r0, #0x010] /* for S0 */
- str r1, [r0, #0x110] /* for S1 */
- str r1, [r0, #0x210] /* for S2 */
- str r1, [r0, #0x310] /* for S3 */
- str r1, [r0, #0x410] /* for S4 */
- /* MGPCR - restore default values */
- ldr r1, =MAX_MGPCR_CONFIG
- str r1, [r0, #0x800] /* for M0 */
- str r1, [r0, #0x900] /* for M1 */
- str r1, [r0, #0xA00] /* for M2 */
- str r1, [r0, #0xB00] /* for M3 */
- str r1, [r0, #0xC00] /* for M4 */
- str r1, [r0, #0xD00] /* for M5 */
-.endm
-
-/* M3IF setup */
-.macro init_m3if
- /* Configure M3IF registers */
- ldr r1, =M3IF_BASE_ADDR
- /*
- * M3IF Control Register (M3IFCTL)
- * MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
- * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
- * MRRP[2] = MBX not on priority list (0 << 0) = 0x00000000
- * MRRP[3] = MAX1 not on priority list (0 << 0) = 0x00000000
- * MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
- * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
- * MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
- * MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
- * ------------
- * 0x00000040
- */
- ldr r0, =M3IF_CONFIG
- str r0, [r1] /* M3IF control reg */
-.endm
-
/* CPLD on CS5 setup */
.macro init_debug_board
ldr r0, =DBG_BASE_ADDR
@@ -210,38 +126,7 @@
lowlevel_init:
mov r10, lr
- mrc 15, 0, r1, c1, c0, 0
-
- mrc 15, 0, r0, c1, c0, 1
- orr r0, r0, #7
- mcr 15, 0, r0, c1, c0, 1
- orr r1, r1, #(1<<11)
-
- /* Set unaligned access enable */
- orr r1, r1, #(1<<22)
-
- /* Set low int latency enable */
- orr r1, r1, #(1<<21)
-
- mcr 15, 0, r1, c1, c0, 0
-
- mov r0, #0
-
- /* Set branch prediction enable */
- mcr 15, 0, r0, c15, c2, 4
-
- mcr 15, 0, r0, c7, c7, 0 /* invalidate I cache and D cache */
- mcr 15, 0, r0, c8, c7, 0 /* invalidate TLBs */
- mcr 15, 0, r0, c7, c10, 4 /* Drain the write buffer */
-
- /*
- * initializes very early AIPS
- * Then it also initializes Multi-Layer AHB Crossbar Switch,
- * M3IF
- * Also setup the Peripheral Port Remap register inside the core
- */
- ldr r0, =0x40000015 /* start from AIPS 2GB region */
- mcr p15, 0, r0, c15, c2, 4
+ core_init
init_aips
diff --git u-boot-4d3c95f.orig/board/freescale/mx35pdk/mx35pdk.h u-boot-4d3c95f/board/freescale/mx35pdk/mx35pdk.h
index 6aeb218..9e44f1f 100644
--- u-boot-4d3c95f.orig/board/freescale/mx35pdk/mx35pdk.h
+++ u-boot-4d3c95f/board/freescale/mx35pdk/mx35pdk.h
@@ -39,17 +39,17 @@
/*
* M3IF Control Register (M3IFCTL)
* MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
- * MRRP[1] = L2CC1 not on priority list (0 << 0) = 0x00000000
- * MRRP[2] = MBX not on priority list (0 << 0) = 0x00000000
- * MRRP[3] = MAX1 not on priority list (0 << 0) = 0x00000000
- * MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
- * MRRP[5] = MPEG4 not on priority list (0 << 0) = 0x00000000
+ * MRRP[1] = L2CC1 not on priority list (0 << 1) = 0x00000000
+ * MRRP[2] = MBX not on priority list (0 << 2) = 0x00000000
+ * MRRP[3] = MAX1 not on priority list (0 << 3) = 0x00000000
+ * MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000
+ * MRRP[5] = MPEG4 not on priority list (0 << 5) = 0x00000000
* MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
- * MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
+ * MRRP[7] = IPU2 not on priority list (0 << 7) = 0x00000000
* ------------
* 0x00000040
*/
-#define M3IF_CONFIG 0x00000040
+#define M3IFCTL_CONFIG 0x00000040
#define DBG_BASE_ADDR WEIM_CTRL_CS5
#define DBG_CSCR_U_CONFIG 0x0000D843
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