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-rw-r--r--board/freescale/mx6q_arm2/flash_header.S300
1 files changed, 300 insertions, 0 deletions
diff --git a/board/freescale/mx6q_arm2/flash_header.S b/board/freescale/mx6q_arm2/flash_header.S
index 441694e..b925a4b 100644
--- a/board/freescale/mx6q_arm2/flash_header.S
+++ b/board/freescale/mx6q_arm2/flash_header.S
@@ -25,6 +25,9 @@
# error "Must define the offset of flash header"
#endif
+#ifndef CONFIG_FLASH_PLUG_IN
+
+/********************DCD mode***********************/
#define CPU_2_BE_32(l) \
((((l) & 0x000000FF) << 24) | \
(((l) & 0x0000FF00) << 8) | \
@@ -353,4 +356,301 @@ MXC_DCD_ITEM(92, IOMUXC_BASE_ADDR + 0x018, 0x00070007)
MXC_DCD_ITEM(93, IOMUXC_BASE_ADDR + 0x01c, 0x00070007)
#endif
+
+#else
+/*****************PLUGIN IN mode********************/
+
+/*DDR clock:480MHz, ipg clock:40MHz, AHB clock:80MHz*/
+#define CONFIG_IPG_40M_FR_PLL3
+
+.section ".text.flasheader", "x"
+ b _start
+ .org CONFIG_FLASH_HEADER_OFFSET
+
+/* First IVT to copy the plugin that initializes the system into OCRAM */
+ivt_header: .long 0x402000D1 /*Tag=0xD1, Len=0x0020, Ver=0x40 */
+app_code_jump_v: .long 0x00907458 /* Plugin entry point, address after the second IVT table */
+reserv1: .long 0x0
+dcd_ptr: .long 0x0
+boot_data_ptr: .long 0x00907420
+self_ptr: .long 0x00907400
+app_code_csf: .long 0x0
+reserv2: .long 0x0
+boot_data: .long 0x00907000
+image_len: .long 16*1024 /* plugin can be upto 16KB in size */
+plugin: .long 0x1 /* Enable plugin flag */
+
+/* Second IVT to give entry point into the bootloader copied to DDR */
+ivt2_header: .long 0x402000D1 /*Tag=0xD1, Len=0x0020, Ver=0x40 */
+app2_code_jump_v: .long _start /* Entry point for uboot */
+reserv3: .long 0x0
+dcd2_ptr: .long 0x0
+boot_data2_ptr: .long boot_data2
+self_ptr2: .long ivt2_header
+app_code_csf2: .long 0x0
+reserv4: .long 0x0
+boot_data2: .long TEXT_BASE
+image_len2: .long _end_of_copy - TEXT_BASE + CONFIG_FLASH_HEADER_OFFSET
+plugin2: .long 0x0
+
+/* Here starts the plugin code */
+plugin_start:
+/* Save the return address and the function arguments */
+ push {r0-r4, lr}
+
+/*
+ * Note: The DDR settings provided below are specific to Freescale development boards and are the latest settings at the time of release.
+ * However, it is recommended to contact your Freescale representative in case there are any improvements to these settings.
+ */
+
+#ifdef CONFIG_IPG_40M_FR_PLL3
+ /*select pll3 for ipg clk 40M */
+ ldr r0, =CCM_BASE_ADDR
+ ldr r1, [r0,#0x14]
+ ldr r2, =0x2000000
+ orr r1, r1, r2
+ ldr r2, =0x1c00
+ bic r1, r2
+ ldr r2, =0x1400
+ orr r1, r1, r2
+ str r1, [r0,#0x14]
+
+ /*enable pll3 */
+ ldr r0, =ANATOP_BASE_ADDR
+ ldr r1, =0x10000
+ str r1, [r0,#0x28]
+ ldr r1, =0x3040
+ str r1, [r0,#0x24]
+#endif
+
+ /* Init the DDR according the init script */
+ ldr r0, =CCM_BASE_ADDR
+ /* select 528MHz for pre_periph_clk_sel */
+ ldr r1, =0x00020324
+ str r1, [r0,#0x18]
+
+ /* IOMUX setting */
+ ldr r0, =IOMUXC_BASE_ADDR
+ mov r1, #0x30
+ str r1, [r0,#0x5a8]
+ str r1, [r0,#0x5b0]
+ str r1, [r0,#0x524]
+ str r1, [r0,#0x51c]
+ str r1, [r0,#0x518]
+ str r1, [r0,#0x50c]
+ str r1, [r0,#0x5b8]
+ str r1, [r0,#0x5c0]
+
+ ldr r1, =0x00020030
+ str r1, [r0,#0x5ac]
+ str r1, [r0,#0x5b4]
+ str r1, [r0,#0x528]
+ str r1, [r0,#0x520]
+ str r1, [r0,#0x514]
+ str r1, [r0,#0x510]
+ str r1, [r0,#0x5bc]
+ str r1, [r0,#0x5c4]
+
+ str r1, [r0,#0x56c]
+ str r1, [r0,#0x578]
+ str r1, [r0,#0x588]
+ str r1, [r0,#0x594]
+ str r1, [r0,#0x57c]
+
+ ldr r1, =0x00003000
+ str r1, [r0,#0x590]
+ str r1, [r0,#0x598]
+ mov r1, #0x00000000
+ str r1, [r0,#0x58c]
+ ldr r1, =0x00003030
+ str r1, [r0,#0x59c]
+ str r1, [r0,#0x5a0]
+
+ ldr r1, =0x00000030
+ str r1, [r0,#0x784]
+ str r1, [r0,#0x788]
+ str r1, [r0,#0x794]
+ str r1, [r0,#0x79c]
+ str r1, [r0,#0x7a0]
+ str r1, [r0,#0x7a4]
+ str r1, [r0,#0x7a8]
+ str r1, [r0,#0x748]
+ str r1, [r0,#0x74c]
+
+ mov r1, #0x00020000
+ str r1, [r0,#0x750]
+
+ mov r1, #0x00000000
+ str r1, [r0,#0x758]
+
+ mov r1, #0x00020000
+ str r1, [r0,#0x774]
+ mov r1, #0x30
+ str r1, [r0,#0x78c]
+ mov r1, #0x000c0000
+ str r1, [r0,#0x798]
+
+ /* Initialize 2GB DDR3 - Micron MT41J128M */
+ ldr r0, =MMDC_P0_BASE_ADDR
+ ldr r2, =MMDC_P1_BASE_ADDR
+
+ ldr r1, =0x33333333
+ str r1, [r0,#0x81c]
+ str r1, [r0,#0x820]
+ str r1, [r0,#0x824]
+ str r1, [r0,#0x828]
+ str r1, [r2,#0x81c]
+ str r1, [r2,#0x820]
+ str r1, [r2,#0x824]
+ str r1, [r2,#0x828]
+
+ ldr r1, =0x00081740
+ str r1, [r0,#0x18]
+ ldr r1, =0x00008000
+ str r1, [r0,#0x1c]
+ ldr r1, =0x555a7975
+ str r1, [r0,#0x0c]
+ ldr r1, =0xff538e64
+ str r1, [r0,#0x10]
+ ldr r1, =0x01ff00db
+ str r1, [r0,#0x14]
+
+ ldr r1, =0x000026d2
+ str r1, [r0,#0x2c]
+ ldr r1, =0x005b0e21
+ str r1, [r0,#0x30]
+ ldr r1, =0x94444040
+ str r1, [r0,#0x08]
+ ldr r1, =0x00020036
+ str r1, [r0,#0x04]
+ ldr r1, =0x00000027
+ str r1, [r0,#0x40]
+ ldr r1, =0xc31a0000
+ str r1, [r0,#0x00]
+
+ ldr r1, =0x04088032
+ str r1, [r0,#0x1c]
+ ldr r1, =0x0408803a
+ str r1, [r0,#0x1c]
+ ldr r1, =0x00008033
+ str r1, [r0,#0x1c]
+ ldr r1, =0x0000803b
+ str r1, [r0,#0x1c]
+ ldr r1, =0x00428031
+ str r1, [r0,#0x1c]
+ ldr r1, =0x00428039
+ str r1, [r0,#0x1c]
+
+ ldr r1, =0x09408030
+ str r1, [r0,#0x1c]
+ ldr r1, =0x09408038
+ str r1, [r0,#0x1c]
+ ldr r1, =0x04008040
+ str r1, [r0,#0x1c]
+ ldr r1, =0x04008048
+ str r1, [r0,#0x1c]
+
+ ldr r1, =0xa5380003
+ str r1, [r0,#0x800]
+ ldr r1, =0xa5380003
+ str r1, [r2,#0x800]
+
+ ldr r1, =0x00005800
+ str r1, [r0,#0x20]
+
+ ldr r1, =0x00022227
+ str r1, [r0,#0x818]
+ ldr r1, =0x00022227
+ str r1, [r2,#0x818]
+
+ ldr r1, =0x433f033f
+ str r1, [r0,#0x83c]
+
+ ldr r1, =0x033f033f
+ str r1, [r0,#0x840]
+
+ ldr r1, =0x433f033f
+ str r1, [r2,#0x83c]
+
+ ldr r1, =0x0344033b
+ str r1, [r2,#0x840]
+
+ ldr r1, =0x4337373e
+ str r1, [r0,#0x848]
+ ldr r1, =0x3634303d
+ str r1, [r2,#0x848]
+
+ ldr r1, =0x35374640
+ str r1, [r0,#0x850]
+ ldr r1, =0x4a294b35
+ str r1, [r2,#0x850]
+
+ ldr r1, =0x001F001F
+ str r1, [r0,#0x80c]
+ ldr r1, =0x001F001F
+ str r1, [r0,#0x810]
+
+ ldr r1, =0x00440044
+ str r1, [r2,#0x80c]
+ ldr r1, =0x00440044
+ str r1, [r2,#0x810]
+
+ ldr r1, =0x00000800
+ str r1, [r0,#0x8b8]
+ ldr r1, =0x00000800
+ str r1, [r2,#0x8b8]
+
+ ldr r1, =0x00000000
+ str r1, [r0,#0x1c]
+
+
+/*
+ The following is to fill in those arguments for this ROM function
+ pu_irom_hwcnfg_setup(void **start, size_t *bytes, const void *boot_data)
+
+ This function is used to copy data from the storage media into DDR.
+
+ start - Initial (possibly partial) image load address on entry. Final image load address on exit.
+ bytes - Initial (possibly partial) image size on entry. Final image size on exit.
+ boot_data - Initial @ref ivt Boot Data load address.
+*/
+
+ adr r0, DDR_DEST_ADDR
+ adr r1, COPY_SIZE
+ adr r2, BOOT_DATA
+
+/*
+ * check the _pu_irom_api_table for the address
+ */
+before_calling_rom___pu_irom_hwcnfg_setup:
+ mov r4, #0x2000
+ add r4, r4, #0xed
+ blx r4 /* This address might change in future ROM versions */
+after_calling_rom___pu_irom_hwcnfg_setup:
+
+/* To return to ROM from plugin, we need to fill in these argument.
+ * Here is what need to do:
+ * Need to construct the paramters for this function before return to ROM:
+ * plugin_download(void **start, size_t *bytes, UINT32 *ivt_offset)
+ */
+ pop {r0-r4, lr}
+ ldr r5, DDR_DEST_ADDR
+ str r5, [r0]
+ ldr r5, COPY_SIZE
+ str r5, [r1]
+ mov r5, #0x400 /* Point to the second IVT table at offset 0x42C */
+ add r5, r5, #0x2C
+ str r5, [r2]
+ mov r0, #1
+
+ bx lr /* return back to ROM code */
+
+DDR_DEST_ADDR: .word TEXT_BASE
+COPY_SIZE: .word _end_of_copy - TEXT_BASE + CONFIG_FLASH_HEADER_OFFSET
+BOOT_DATA: .word TEXT_BASE
+ .word _end_of_copy - TEXT_BASE + CONFIG_FLASH_HEADER_OFFSET
+ .word 0
+/*********************************************************************/
+#endif
+
#endif
generated by cgit v1.1 at 2024-12-29 02:14:24 +0000